/* ===== MÀU SẮC LẤY CẢM HỨNG TỪ PHUONGBUILDER.COM =====
   - Nền sáng sang trọng (Paper / Canvas): #f5f7fc & #ffffff & #eceff8
   - Màu chữ đậm màu mực xanh đen (Deep Ink): #151733 & #34375a
   - Màu nhấn chủ đạo (Builder Orange): #f47b1a & #e0501f
   - Màu phụ trợ: #4b5be8 (Royal Blue), #e23d7a (Pink), #16a57e (Emerald), #d4930f (Gold)
========================================================= */

/* ===== FONT DISPLAY OPTIMIZATIONS (LIGHTHOUSE CORE WEB VITALS) ===== */
@font-face {
  font-family: 'Font Awesome 6 Free';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-solid-900.woff2') format('woff2');
}
@font-face {
  font-family: 'Font Awesome 6 Brands';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-brands-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Font Awesome 6 Free';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-regular-400.woff2') format('woff2');
}

/* ===== GLOBAL RESET & THEME SYNC ===== */
*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  margin: 0; padding: 0;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  background: #edf1f8;
}
body {
  margin: 0; padding: 0;
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
  background: #edf1f8;
  color: #0f1424;
  overflow-x: hidden;
}
#ngoc-portfolio {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}
html.dark-theme, body.dark-theme, #ngoc-portfolio.dark-theme {
  background: #090c15 !important;
  color: #f0f4fd !important;
}

:root {
  /* Bảng màu Chế độ Sáng Dịu Mắt (Warm/Soft Light - Không bị chói) */
  --paper: #edf1f8;
  --paper2: #e2e8f3;
  --white: #ffffff;
  --ink: #0f1424;
  --ink2: #2d3450;
  --muted: #565f7e;
  --faint: #8993b3;
  --line: rgba(15, 20, 36, 0.08);
  --line-strong: rgba(15, 20, 36, 0.16);
  
  /* Điểm nhấn thương hiệu Builder Orange */
  --core: #f47b1a;
  --ember: #e0501f;
  --grad: linear-gradient(135deg, #f47b1a, #e0501f);
  --grad-hover: linear-gradient(135deg, #ff8b33, #f45d29);
  
  /* Màu phân mục */
  --p-marketing: #f47b1a;
  --p-brand: #e23d7a;
  --p-trade: #16a57e;
  --p-data: #4b5be8;
  --p-gold: #d4930f;

  /* Nền và card */
  --bg: #edf1f8;
  --bg2: #ffffff;
  --bg3: #e2e8f3;
  --card: #ffffff;
  --border: rgba(15, 20, 36, 0.08);
  --navbar-bg: rgba(255, 255, 255, 0.96);

  /* Typography */
  --text: #0f1424;
  --text2: #565f7e;
  --text3: #8993b3;

  /* Hiệu ứng */
  --radius: 20px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 16px -4px rgba(15, 20, 36, 0.06);
  --shadow: 0 16px 36px -12px rgba(15, 20, 36, 0.10);
  --shadow-lg: 0 25px 50px -15px rgba(15, 20, 36, 0.16);
  --shadow-core: 0 12px 30px -10px rgba(244, 123, 26, 0.55);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== CHẾ ĐỘ TỐI SANG TRỌNG (DARK THEME - OBSIDIAN TECH) ===== */
#ngoc-portfolio.dark-theme {
  --paper: #090c15;
  --paper2: #101524;
  --white: #141a2e;
  --ink: #f0f4fd;
  --ink2: #c4cde4;
  --muted: #8d9bbd;
  --faint: #5a6686;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.18);
  
  --bg: #090c15;
  --bg2: #101524;
  --bg3: #141a2e;
  --card: #141a2e;
  --border: rgba(255, 255, 255, 0.09);
  --navbar-bg: rgba(9, 12, 21, 0.96);

  --text: #f0f4fd;
  --text2: #8d9bbd;
  --text3: #5a6686;

  --core: #f58220;
  --ember: #e8590c;
  --grad: linear-gradient(135deg, #f58220, #e8590c);
  --grad-hover: linear-gradient(135deg, #ff9438, #f5691b);

  --shadow-sm: 0 4px 16px -4px rgba(0, 0, 0, 0.5);
  --shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.65);
  --shadow-lg: 0 25px 50px -15px rgba(0, 0, 0, 0.85);
  --shadow-core: 0 12px 30px -10px rgba(245, 130, 32, 0.45);
}

html { scroll-behavior: smooth; }

/* Scrollbar */
#ngoc-portfolio ::-webkit-scrollbar { width: 8px; }
#ngoc-portfolio ::-webkit-scrollbar-track { background: var(--paper); }
#ngoc-portfolio ::-webkit-scrollbar-thumb { background: #b0bad0; border-radius: 99px; }
#ngoc-portfolio.dark-theme ::-webkit-scrollbar-thumb { background: #2a3450; }
#ngoc-portfolio ::-webkit-scrollbar-thumb:hover { background: var(--core); }

/* Selection */
#ngoc-portfolio ::selection {
  background: var(--core);
  color: #ffffff;
}

/* ===== WRAPPER TỔNG ===== */
#ngoc-portfolio {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
  background: var(--bg) !important;
  color: var(--text) !important;
  line-height: 1.75;
  overflow-x: clip; /* clip không làm mất position: sticky của sidebar */
  position: relative;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
}
#ngoc-portfolio a { text-decoration: none !important; color: inherit !important; }
#ngoc-portfolio ul { list-style: none !important; }
#ngoc-portfolio img { max-width: 100%; display: block; }

/* ===== UTILITIES ===== */
#ngoc-portfolio .container { max-width: 1220px; margin: 0 auto; padding: 0 24px; }
#ngoc-portfolio .gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  padding-top: 0.12em;
  padding-bottom: 0.08em;
  line-height: 1.25;
}
#ngoc-portfolio .section { padding: 110px 0; position: relative; }
#ngoc-portfolio .dot { color: var(--core); -webkit-text-fill-color: var(--core); }

#ngoc-portfolio .section-header { text-align: center; margin-bottom: 64px; }
#ngoc-portfolio .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(244, 123, 26, 0.08);
  color: var(--core) !important;
  border: 1px solid rgba(244, 123, 26, 0.22);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
#ngoc-portfolio .section-title {
  font-size: clamp(2.1rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.34;
  margin-bottom: 16px;
  color: var(--ink) !important;
  letter-spacing: -0.015em;
}
#ngoc-portfolio .section-desc {
  color: var(--muted);
  max-width: 580px;
  margin: 0 auto;
  font-size: 1.02rem;
}

/* ===== BUTTONS ===== */
#ngoc-portfolio .btn {
  display: inline-flex !important;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none !important;
}
#ngoc-portfolio .btn-primary {
  background: var(--grad) !important;
  color: #ffffff !important;
  box-shadow: var(--shadow-core);
}
#ngoc-portfolio .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -10px rgba(224, 80, 31, 0.7);
  background: var(--grad-hover) !important;
}
#ngoc-portfolio .btn-ghost {
  background: var(--white) !important;
  color: var(--ink) !important;
  border: 1px solid var(--line-strong) !important;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .btn-ghost:hover {
  border-color: var(--ink) !important;
  transform: translateY(-2px);
  color: var(--core) !important;
  box-shadow: var(--shadow);
}
#ngoc-portfolio .btn-full { width: 100%; justify-content: center; }

/* ===== NAVBAR ===== */
#ngoc-portfolio .navbar {
  position: fixed !important;
  top: 0; left: 0; right: 0;
  z-index: 9999;
  padding: 14px 0;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s, padding 0.3s;
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .navbar.scrolled {
  background: var(--bg2) !important;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
}
#ngoc-portfolio .nav-container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
#ngoc-portfolio .nav-logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--ink) !important;
  text-decoration: none !important;
  display: flex;
  align-items: center;
}
#ngoc-portfolio .nav-menu {
  display: flex !important;
  gap: 6px;
  position: static !important;
  background: none !important;
  flex-direction: row !important;
  padding: 0 !important;
  border: none !important;
  list-style: none !important;
  align-items: center;
}
#ngoc-portfolio .nav-link {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted) !important;
  transition: var(--transition);
  text-decoration: none !important;
}
#ngoc-portfolio .nav-link:hover {
  color: var(--ink) !important;
  background: rgba(124, 58, 237, 0.05);
}
#ngoc-portfolio .nav-link.active {
  color: var(--core) !important;
  background: rgba(244, 123, 26, 0.12);
}

/* Nav Actions & Theme Toggle */
#ngoc-portfolio .nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
#ngoc-portfolio .theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--paper2) !important;
  border: 1px solid var(--line);
  color: var(--ink) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .theme-toggle-btn:hover {
  background: var(--core) !important;
  color: #ffffff !important;
  border-color: var(--core);
  transform: rotate(20deg) scale(1.08);
}

#ngoc-portfolio .nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: var(--paper2) !important;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
}
#ngoc-portfolio .nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO SECTION ===== */
#ngoc-portfolio .hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 100px;
  padding-bottom: 60px;
  background:
    radial-gradient(ellipse 60% 55% at 72% 38%, rgba(244, 123, 26, 0.15), transparent 70%),
    radial-gradient(ellipse 45% 40% at 88% 85%, rgba(75, 91, 232, 0.12), transparent 70%),
    radial-gradient(ellipse 40% 45% at 45% 10%, rgba(226, 61, 122, 0.09), transparent 70%),
    radial-gradient(ellipse 50% 50% at 10% 90%, rgba(22, 165, 126, 0.09), transparent 70%),
    var(--paper);
}
#ngoc-portfolio .hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
#ngoc-portfolio .hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.6;
  animation: nbOrb 9s ease-in-out infinite;
}
#ngoc-portfolio .orb1 { width: 450px; height: 450px; background: rgba(244, 123, 26, 0.22); top: -80px; right: -50px; animation-delay: 0s; }
#ngoc-portfolio .orb2 { width: 380px; height: 380px; background: rgba(226, 61, 122, 0.15); bottom: -60px; left: -60px; animation-delay: -3s; }
#ngoc-portfolio .orb3 { width: 320px; height: 320px; background: rgba(75, 91, 232, 0.15); top: 40%; left: 35%; animation-delay: -6s; }
@keyframes nbOrb { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-25px)} }

#ngoc-portfolio .grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(21, 23, 51, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 23, 51, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}
#ngoc-portfolio .hero-container {
  position: relative;
  z-index: 1;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
  width: 100%;
}
#ngoc-portfolio .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink) !important;
  box-shadow: 0 6px 20px -10px rgba(21, 23, 51, 0.15);
  margin-bottom: 24px;
}
#ngoc-portfolio .badge-dot {
  width: 9px;
  height: 9px;
  background: var(--p-trade);
  border-radius: 50%;
  animation: nbPulse 2s infinite;
}
@keyframes nbPulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.6;transform:scale(1.3)} }

#ngoc-portfolio .hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--ink) !important;
}
#ngoc-portfolio .hero-title-top {
  display: block;
  line-height: 1.15;
  margin-bottom: 6px;
}
#ngoc-portfolio .hero-title-bottom {
  display: inline-block;
  line-height: 1.25;
  padding-top: 0.12em;
  padding-bottom: 0.08em;
}
#ngoc-portfolio .hero-role {
  font-size: 1.25rem;
  color: var(--core);
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
#ngoc-portfolio .hero-desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 520px;
}
#ngoc-portfolio .hero-desc strong {
  color: var(--ink) !important;
  font-weight: 700;
}

#ngoc-portfolio .hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 38px;
  padding: 20px 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  width: fit-content;
}
#ngoc-portfolio .stat-item { text-align: left; }
#ngoc-portfolio .stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -0.03em;
}
#ngoc-portfolio .stat-plus {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--core);
}
#ngoc-portfolio .stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-top: 2px;
}
#ngoc-portfolio .stat-divider {
  width: 1px;
  height: 42px;
  background: var(--line);
}
#ngoc-portfolio .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero Image Card (phong cách chân dung phuongbuilder) */
#ngoc-portfolio .hero-image-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
#ngoc-portfolio .hero-image-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(244, 123, 26, 0.25);
  animation: nbSpin 24s linear infinite;
  pointer-events: none;
}
#ngoc-portfolio .ring1 { width: 440px; height: 440px; }
#ngoc-portfolio .ring2 {
  width: 520px;
  height: 520px;
  animation-direction: reverse;
  border-color: rgba(75, 91, 232, 0.2);
}
@keyframes nbSpin { from{transform:rotate(0)} to{transform:rotate(360deg)} }

#ngoc-portfolio .hero-image-card {
  width: 350px;
  height: 470px;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 35px 70px -25px rgba(21, 23, 51, 0.22);
  position: relative;
  z-index: 2;
}
#ngoc-portfolio .hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
#ngoc-portfolio .hero-image-card:hover .hero-img {
  transform: scale(1.03);
}
#ngoc-portfolio .hero-img-placeholder {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  background: var(--paper2);
  font-size: 5rem;
  color: var(--faint);
}

/* Floating Tags */
#ngoc-portfolio .floating-tag {
  position: absolute;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: 0.84rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  box-shadow: 0 10px 26px -10px rgba(21, 23, 51, 0.22);
  z-index: 3;
  animation: nbOrb 4.5s ease-in-out infinite;
}
#ngoc-portfolio .tag1 {
  top: 40px; left: -30px;
  color: var(--p-data) !important;
  animation-delay: 0s;
}
#ngoc-portfolio .tag2 {
  bottom: 90px; right: -30px;
  color: var(--core) !important;
  animation-delay: -2s;
}
#ngoc-portfolio .tag3 {
  bottom: 25px; left: -10px;
  color: var(--p-trade) !important;
  animation-delay: -1s;
}

#ngoc-portfolio .scroll-down-btn {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted) !important;
  font-size: 0.9rem;
  animation: nbBounce 2s infinite;
  transition: var(--transition);
  z-index: 2;
}
#ngoc-portfolio .scroll-down-btn:hover {
  border-color: var(--core);
  color: var(--core) !important;
  transform: translateX(-50%) translateY(3px);
}
@keyframes nbBounce {
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(7px)}
}

/* ===== ABOUT SECTION ===== */
#ngoc-portfolio .about { background: var(--white); }
#ngoc-portfolio .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
#ngoc-portfolio .about-col-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--ink) !important;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
}
#ngoc-portfolio .title-bar {
  width: 4px;
  height: 18px;
  background: var(--core);
  border-radius: 99px;
  display: inline-block;
  flex-shrink: 0;
}
#ngoc-portfolio .about-lead {
  color: var(--ink2);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 20px;
}
#ngoc-portfolio .about-lead strong {
  color: var(--ink) !important;
  font-weight: 700;
}
#ngoc-portfolio .about-highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
#ngoc-portfolio .highlight-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: var(--transition);
}
#ngoc-portfolio .highlight-item:hover {
  border-color: rgba(244, 123, 26, 0.4);
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateX(4px);
}
#ngoc-portfolio .highlight-num {
  width: 38px;
  height: 38px;
  background: rgba(244, 123, 26, 0.10);
  color: var(--core) !important;
  border: 1px solid rgba(244, 123, 26, 0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code, 'JetBrains Mono', monospace);
  font-size: 0.95rem;
  font-weight: 800;
  flex-shrink: 0;
  transition: var(--transition);
}
#ngoc-portfolio .highlight-item:hover .highlight-num {
  background: var(--core);
  color: #ffffff !important;
  border-color: var(--core);
  box-shadow: 0 4px 12px rgba(244, 123, 26, 0.35);
}
#ngoc-portfolio .highlight-content strong {
  display: block;
  color: var(--ink) !important;
  margin-bottom: 4px;
  font-size: 0.95rem;
  font-weight: 700;
}
#ngoc-portfolio .highlight-content span {
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
  display: block;
}

#ngoc-portfolio .skill-bars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}
#ngoc-portfolio .skill-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 7px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink2);
}
#ngoc-portfolio .skill-bar-track {
  height: 8px;
  background: var(--paper2);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
#ngoc-portfolio .skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #f58220, #e0501f, #ff9438);
  background-size: 200% 100%;
  border-radius: 99px;
  width: 0%;
  transition: width 1.3s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: width;
  box-shadow: 0 0 8px rgba(244, 123, 26, 0.35);
}
#ngoc-portfolio .skills-footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
}
#ngoc-portfolio .skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink2) !important;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  transition: var(--transition);
}
#ngoc-portfolio .skill-tag:hover {
  border-color: var(--core);
  color: var(--core) !important;
  background: var(--white);
  transform: translateY(-2px);
}
#ngoc-portfolio .skill-tag i {
  color: var(--core);
  font-size: 0.8rem;
}


/* ===== EXPERTISE SECTION ===== */
#ngoc-portfolio .expertise { background: var(--paper); }
#ngoc-portfolio .expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
#ngoc-portfolio .expertise-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .expertise-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: var(--transition);
}
#ngoc-portfolio .expertise-card:hover {
  transform: translateY(-6px);
  border-color: rgba(244, 123, 26, 0.3);
  box-shadow: var(--shadow-lg);
}
#ngoc-portfolio .expertise-card:hover::before { opacity: 1; }

#ngoc-portfolio .expertise-card.featured {
  border-color: rgba(244, 123, 26, 0.35);
  background: linear-gradient(180deg, rgba(244, 123, 26, 0.04), var(--white));
  box-shadow: 0 20px 40px -15px rgba(244, 123, 26, 0.15);
}
#ngoc-portfolio .expertise-card.featured::before { opacity: 1; }

#ngoc-portfolio .card-icon {
  width: 48px;
  height: 48px;
  background: rgba(244, 123, 26, 0.08);
  color: var(--core) !important;
  border: 1px solid rgba(244, 123, 26, 0.22);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code, 'JetBrains Mono', monospace);
  font-size: 1.12rem;
  font-weight: 800;
  margin-bottom: 22px;
  transition: var(--transition);
}
#ngoc-portfolio .expertise-card:hover .card-icon {
  background: var(--core);
  color: #ffffff !important;
  border-color: var(--core);
  box-shadow: 0 6px 16px rgba(244, 123, 26, 0.35);
  transform: translateY(-2px);
}
#ngoc-portfolio .expertise-card h3 {
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--ink) !important;
  letter-spacing: -0.015em;
}
#ngoc-portfolio .expertise-card p {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
  margin-bottom: 22px;
}
#ngoc-portfolio .card-tags { display: flex; flex-wrap: wrap; gap: 8px; }
#ngoc-portfolio .card-tags li {
  font-size: 0.76rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--paper);
  color: var(--ink2) !important;
  border: 1px solid var(--line);
}

/* ===== EXPERIENCE SECTION ===== */
#ngoc-portfolio .experience { background: var(--white); }
#ngoc-portfolio .timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}
#ngoc-portfolio .timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--core), var(--p-data), transparent);
}
#ngoc-portfolio .timeline-item {
  display: flex;
  gap: 36px;
  margin-bottom: 48px;
  position: relative;
}
#ngoc-portfolio .timeline-dot {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--core);
  box-shadow: 0 0 0 5px rgba(244, 123, 26, 0.15);
  z-index: 1;
}
#ngoc-portfolio .timeline-content {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 32px;
  flex: 1;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .timeline-content:hover {
  border-color: rgba(244, 123, 26, 0.35);
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateX(6px);
}
#ngoc-portfolio .timeline-date {
  font-size: 0.82rem;
  color: var(--core) !important;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
#ngoc-portfolio .timeline-content h3 {
  font-size: 1.18rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--ink) !important;
}
#ngoc-portfolio .timeline-company {
  font-size: 0.88rem;
  color: var(--muted) !important;
  margin-bottom: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-weight: 500;
  line-height: 1.5;
}
#ngoc-portfolio .timeline-company i {
  margin-top: 3px;
  flex-shrink: 0;
}
#ngoc-portfolio .timeline-content > p {
  color: var(--ink2);
  font-size: 0.95rem;
  line-height: 1.7;
}
#ngoc-portfolio .timeline-case-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--core) !important;
  text-decoration: none !important;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .timeline-case-btn:hover {
  background: var(--core);
  color: #ffffff !important;
  border-color: var(--core);
  box-shadow: 0 4px 14px rgba(244, 123, 26, 0.35);
  transform: translateY(-2px);
}
#ngoc-portfolio .timeline-case-btn i {
  font-size: 0.8rem;
  transition: transform 0.25s ease;
}
#ngoc-portfolio .timeline-case-btn:hover i {
  transform: translate(2px, -2px);
}

/* ===== PORTFOLIO SECTION ===== */
#ngoc-portfolio .portfolio { background: var(--paper); }
#ngoc-portfolio .portfolio-filters {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
#ngoc-portfolio .filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: var(--white) !important;
  border: 1px solid var(--line);
  color: var(--muted) !important;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .filter-btn:hover {
  color: var(--core) !important;
  border-color: var(--core);
}
#ngoc-portfolio .filter-btn.active {
  background: var(--core) !important;
  color: #ffffff !important;
  border-color: var(--core) !important;
  box-shadow: var(--shadow-core);
}

#ngoc-portfolio .portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
#ngoc-portfolio .portfolio-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .portfolio-card:hover {
  transform: translateY(-6px);
  border-color: rgba(244, 123, 26, 0.35);
  box-shadow: var(--shadow-lg);
}
#ngoc-portfolio .portfolio-card.hidden { display: none; }

#ngoc-portfolio .portfolio-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--paper2);
}
#ngoc-portfolio .portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
#ngoc-portfolio .portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.06);
}
#ngoc-portfolio .portfolio-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(244, 123, 26, 0.08), rgba(75, 91, 232, 0.08));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  border-bottom: 1px dashed var(--line);
}
#ngoc-portfolio .portfolio-img-placeholder i {
  font-size: 2.4rem;
  color: var(--faint);
}

#ngoc-portfolio .portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(21, 23, 51, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
#ngoc-portfolio .portfolio-card:hover .portfolio-overlay { opacity: 1; }
#ngoc-portfolio .overlay-zoom {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--white) !important;
  border: none;
  color: var(--ink) !important;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}
#ngoc-portfolio .overlay-zoom:hover {
  background: var(--core) !important;
  color: #ffffff !important;
  transform: scale(1.1);
}

#ngoc-portfolio .portfolio-info { padding: 22px 26px; }
#ngoc-portfolio .portfolio-cat {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--core) !important;
  text-transform: uppercase;
  letter-spacing: 1px;
}
#ngoc-portfolio .portfolio-info h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin: 8px 0 14px;
  color: var(--ink) !important;
  letter-spacing: -0.01em;
}
#ngoc-portfolio .portfolio-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
#ngoc-portfolio .portfolio-metrics span {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink2);
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--paper);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
}
#ngoc-portfolio .portfolio-metrics i { color: var(--core); }

#ngoc-portfolio .add-image-notice {
  margin-top: 40px;
  background: rgba(75, 91, 232, 0.06);
  border: 1px solid rgba(75, 91, 232, 0.18);
  border-radius: var(--radius-sm);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--ink2);
}
#ngoc-portfolio .add-image-notice i { color: var(--p-data); flex-shrink: 0; font-size: 1.1rem; }
#ngoc-portfolio .add-image-notice code {
  background: var(--white);
  padding: 3px 8px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--ink);
  border: 1px solid var(--line);
}

/* ===== LIGHTBOX ===== */
#ngoc-portfolio .lightbox {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(21, 23, 51, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
#ngoc-portfolio .lightbox.open { opacity: 1; pointer-events: all; }
#ngoc-portfolio .lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  overflow: hidden;
}
#ngoc-portfolio .lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
}
#ngoc-portfolio .lightbox-close,
#ngoc-portfolio .lightbox-prev,
#ngoc-portfolio .lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.15) !important;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff !important;
  cursor: pointer;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}
#ngoc-portfolio .lightbox-close:hover,
#ngoc-portfolio .lightbox-prev:hover,
#ngoc-portfolio .lightbox-next:hover {
  background: var(--core) !important;
  border-color: var(--core);
}
#ngoc-portfolio .lightbox-close { top: 24px; right: 24px; }
#ngoc-portfolio .lightbox-prev { left: 24px; top: 50%; transform: translateY(-50%); }
#ngoc-portfolio .lightbox-next { right: 24px; top: 50%; transform: translateY(-50%); }

/* ===== CONTACT SECTION ===== */
#ngoc-portfolio .contact { background: var(--white); }
#ngoc-portfolio .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 60px;
  align-items: start;
}
#ngoc-portfolio .contact-info { display: flex; flex-direction: column; gap: 20px; }
#ngoc-portfolio .contact-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: var(--transition);
}
#ngoc-portfolio .contact-item:hover {
  background: var(--white);
  border-color: rgba(244, 123, 26, 0.35);
  box-shadow: var(--shadow);
  transform: translateX(4px);
}
#ngoc-portfolio .contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(244, 123, 26, 0.12);
  color: var(--core) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}
#ngoc-portfolio .contact-item strong {
  display: block;
  font-size: 0.78rem;
  color: var(--muted) !important;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
  font-weight: 700;
}
#ngoc-portfolio .contact-item a {
  color: var(--ink) !important;
  font-size: 0.98rem;
  font-weight: 600;
  transition: var(--transition);
  text-decoration: none !important;
}
#ngoc-portfolio .contact-item a:hover { color: var(--core) !important; }

#ngoc-portfolio .contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--paper);
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
#ngoc-portfolio .form-group input,
#ngoc-portfolio .form-group textarea {
  width: 100% !important;
  background: var(--white) !important;
  border: 1px solid var(--line-strong) !important;
  border-radius: var(--radius-sm) !important;
  padding: 15px 18px !important;
  color: var(--ink) !important;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  resize: none;
  box-shadow: var(--shadow-sm) !important;
}
#ngoc-portfolio .form-group input:focus,
#ngoc-portfolio .form-group textarea:focus {
  border-color: var(--core) !important;
  box-shadow: 0 0 0 3px rgba(244, 123, 26, 0.18) !important;
}
#ngoc-portfolio .form-group input::placeholder,
#ngoc-portfolio .form-group textarea::placeholder {
  color: var(--faint);
}

/* ===== FOOTER ===== */
#ngoc-portfolio .footer {
  background: var(--paper2);
  border-top: 1px solid var(--line);
  padding: 50px 0;
  text-align: center;
}
#ngoc-portfolio .footer-logo {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 10px;
  color: var(--ink) !important;
  letter-spacing: -0.03em;
}
#ngoc-portfolio .footer-copy {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 6px;
}
#ngoc-portfolio .footer-sub {
  color: var(--faint);
  font-size: 0.84rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  #ngoc-portfolio .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 36px;
  }
  #ngoc-portfolio .hero-content {
    order: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  #ngoc-portfolio .hero-image-wrap {
    order: 2;
    margin: 10px auto 0;
  }
  #ngoc-portfolio .hero-stats {
    justify-content: center;
    margin: 28px auto;
  }
  #ngoc-portfolio .hero-actions {
    justify-content: center;
  }
  #ngoc-portfolio .hero-desc {
    margin: 0 auto 28px;
    max-width: 560px;
  }
  #ngoc-portfolio .ring1 { width: 300px; height: 300px; max-width: 85vw; max-height: 85vw; }
  #ngoc-portfolio .ring2 { width: 360px; height: 360px; max-width: 95vw; max-height: 95vw; }
  #ngoc-portfolio .hero-image-card { width: min(290px, 80vw); height: auto; aspect-ratio: 3/4; border-radius: 22px; }
  #ngoc-portfolio .about-grid { grid-template-columns: 1fr; }
  #ngoc-portfolio .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  #ngoc-portfolio .contact-grid { grid-template-columns: 1fr; }
  #ngoc-portfolio .blog-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

@media (max-width: 768px) {
  /* MOBILE NAVBAR */
  #ngoc-portfolio .nav-menu {
    display: none !important;
    position: fixed !important;
    top: 68px !important; left: 0 !important; right: 0 !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column !important;
    padding: 18px 20px 24px !important;
    border-bottom: 1px solid var(--line) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12) !important;
    z-index: 99998 !important;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  #ngoc-portfolio.dark-theme .nav-menu {
    background: rgba(14, 18, 34, 0.98) !important;
    border-bottom-color: rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5) !important;
  }
  #ngoc-portfolio .nav-menu.open {
    display: flex !important;
    animation: nbSlideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  #ngoc-portfolio .nav-link {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 12px 16px !important;
    border-radius: 12px !important;
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    width: 100% !important;
    text-align: left !important;
  }
  #ngoc-portfolio .nav-link:hover,
  #ngoc-portfolio .nav-link:active {
    background: rgba(244, 123, 26, 0.08) !important;
  }
  #ngoc-portfolio .nav-toggle {
    display: flex;
  }
  #ngoc-portfolio .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  #ngoc-portfolio .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  #ngoc-portfolio .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* HERO ON MOBILE */
  #ngoc-portfolio .hero {
    padding-top: 90px !important;
    padding-bottom: 50px !important;
    min-height: auto !important;
  }
  #ngoc-portfolio .hero-container {
    gap: 28px !important;
    padding: 0 16px !important;
  }
  #ngoc-portfolio .hero-badge {
    margin-bottom: 18px !important;
    font-size: 0.8rem !important;
    padding: 7px 15px !important;
  }
  #ngoc-portfolio .hero-title {
    font-size: clamp(2.4rem, 8vw, 3.2rem) !important;
    margin-bottom: 12px !important;
  }
  #ngoc-portfolio .hero-role {
    font-size: 1.05rem !important;
    margin-bottom: 14px !important;
    line-height: 1.4 !important;
  }
  #ngoc-portfolio .hero-desc {
    font-size: 0.95rem !important;
    line-height: 1.6 !important;
    margin-bottom: 24px !important;
  }

  /* Hero Actions CTA on Mobile */
  #ngoc-portfolio .hero-actions {
    display: flex !important;
    flex-direction: row !important;
    width: 100% !important;
    max-width: 360px !important;
    gap: 10px !important;
    justify-content: center !important;
    margin-bottom: 24px !important;
  }
  #ngoc-portfolio .hero-actions .btn {
    flex: 1 !important;
    padding: 12px 14px !important;
    font-size: 0.88rem !important;
    white-space: nowrap !important;
    justify-content: center !important;
  }

  /* Compact 3-column Hero Stats */
  #ngoc-portfolio .hero-stats {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 8px !important;
    width: 100% !important;
    max-width: 440px !important;
    padding: 16px 8px !important;
    margin: 0 auto 10px !important;
    text-align: center !important;
    box-shadow: var(--shadow-sm) !important;
  }
  #ngoc-portfolio .stat-item {
    text-align: center !important;
    padding: 0 4px !important;
  }
  #ngoc-portfolio .stat-num {
    font-size: 1.55rem !important;
    line-height: 1.1 !important;
  }
  #ngoc-portfolio .stat-plus {
    font-size: 1.1rem !important;
  }
  #ngoc-portfolio .stat-label {
    font-size: 0.72rem !important;
    line-height: 1.25 !important;
    margin-top: 4px !important;
  }
  #ngoc-portfolio .stat-divider {
    display: none !important;
  }

  /* Hero Image and Rings */
  #ngoc-portfolio .hero-image-wrap {
    margin-top: 10px !important;
  }
  #ngoc-portfolio .ring1 {
    width: 250px !important;
    height: 250px !important;
  }
  #ngoc-portfolio .ring2 {
    width: 310px !important;
    height: 310px !important;
  }
  #ngoc-portfolio .hero-image-card {
    width: 240px !important;
    height: 320px !important;
    border-radius: 20px !important;
  }
  #ngoc-portfolio .tag1, #ngoc-portfolio .tag2, #ngoc-portfolio .tag3,
  #ngoc-portfolio .floating-tag {
    display: none !important;
  }

  /* Portfolio & Filter Buttons - Swipeable Native Track */
  #ngoc-portfolio .portfolio-grid {
    grid-template-columns: 1fr !important;
    gap: 22px !important;
  }
  #ngoc-portfolio .portfolio-filters,
  #ngoc-portfolio .blog-filters {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 8px !important;
    padding: 6px 16px 14px !important;
    margin: 0 -16px 24px !important;
    justify-content: flex-start !important;
  }
  #ngoc-portfolio .portfolio-filters::-webkit-scrollbar,
  #ngoc-portfolio .blog-filters::-webkit-scrollbar {
    display: none !important;
  }
  #ngoc-portfolio .filter-btn,
  #ngoc-portfolio .bfilter-btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    font-size: 0.82rem !important;
    padding: 9px 18px !important;
    border-radius: 999px !important;
  }

  /* Blog Cards & Meta */
  #ngoc-portfolio .blog-grid {
    grid-template-columns: 1fr !important;
    gap: 22px !important;
  }
  #ngoc-portfolio .blog-card.featured-blog {
    grid-column: span 1 !important;
    display: flex !important;
    flex-direction: column !important;
  }
  #ngoc-portfolio .blog-card-thumb,
  #ngoc-portfolio .blog-card.featured-blog .blog-card-thumb {
    height: 195px !important;
    min-height: 195px !important;
  }
  #ngoc-portfolio .blog-card-body {
    padding: 18px 20px !important;
  }
  #ngoc-portfolio .blog-meta {
    display: flex !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 6px 8px !important;
    font-size: 0.78rem !important;
    margin-bottom: 10px !important;
  }
  #ngoc-portfolio .blog-meta span {
    white-space: nowrap !important;
  }
  #ngoc-portfolio .blog-read-time {
    display: inline-flex !important;
    align-items: center !important;
    gap: 5px !important;
    white-space: nowrap !important;
  }
  #ngoc-portfolio .blog-title {
    font-size: 1.12rem !important;
    min-height: auto !important;
    line-height: 1.45 !important;
  }
  #ngoc-portfolio .blog-excerpt {
    font-size: 0.88rem !important;
    min-height: auto !important;
    line-height: 1.6 !important;
    margin-bottom: 16px !important;
  }

  /* General Sections & Timeline */
  #ngoc-portfolio .section { padding: 48px 0; }
  #ngoc-portfolio .expertise-grid { grid-template-columns: 1fr !important; gap: 18px !important; }
  #ngoc-portfolio .timeline::before { left: 16px; }
  #ngoc-portfolio .timeline-dot { width: 34px; height: 34px; }
  #ngoc-portfolio .timeline-item { gap: 18px; }
  #ngoc-portfolio .contact-form { padding: 22px 18px; }

  /* Input zoom prevention on iOS */
  #ngoc-portfolio input,
  #ngoc-portfolio textarea,
  #ngoc-portfolio select {
    font-size: 16px !important;
  }
}

@keyframes nbSlideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== SCROLL ANIMATIONS ===== */
#ngoc-portfolio .anim-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
#ngoc-portfolio .anim-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================================
   SECTION DANH MỤC KIẾN THỨC (#blog)
   ======================================================== */
#ngoc-portfolio .blog { background: var(--bg3); }
#ngoc-portfolio .blog-filters {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
#ngoc-portfolio .bfilter-btn {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  background: var(--white) !important;
  border: 1px solid var(--line);
  color: var(--muted) !important;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .bfilter-btn:hover {
  color: var(--ink) !important;
  border-color: var(--line-strong);
}
#ngoc-portfolio .bfilter-btn.active {
  background: var(--core) !important;
  color: #ffffff !important;
  border-color: var(--core);
  box-shadow: var(--shadow-core);
}

#ngoc-portfolio .blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
#ngoc-portfolio .blog-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .blog-card:hover {
  transform: translateY(-6px);
  border-color: rgba(244, 123, 26, 0.35);
  box-shadow: var(--shadow-lg);
}

/* Card nổi bật chiếm 3 cột */
#ngoc-portfolio .blog-card.featured-blog {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
}
@media (max-width: 900px) {
  #ngoc-portfolio .blog-card.featured-blog {
    grid-column: span 1;
    display: flex;
    flex-direction: column;
  }
}

#ngoc-portfolio .blog-card-thumb {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--paper2);
  flex-shrink: 0;
}
#ngoc-portfolio .blog-card.featured-blog .blog-card-thumb {
  height: 100%;
  min-height: 280px;
}
#ngoc-portfolio .blog-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
#ngoc-portfolio .blog-card:hover .blog-card-thumb img {
  transform: scale(1.05);
}

#ngoc-portfolio .blog-thumb-bg {
  width: 100%;
  height: 100%;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: rgba(255, 255, 255, 0.9);
  transition: transform 0.5s ease;
}
#ngoc-portfolio .blog-card:hover .blog-thumb-bg {
  transform: scale(1.05);
}
#ngoc-portfolio .grad-orange { background: linear-gradient(135deg, #f47b1a, #e0501f); }
#ngoc-portfolio .grad-purple { background: linear-gradient(135deg, #4b5be8, #7c3aed); }
#ngoc-portfolio .grad-pink   { background: linear-gradient(135deg, #e23d7a, #ec4899); }
#ngoc-portfolio .grad-green  { background: linear-gradient(135deg, #16a57e, #059669); }

#ngoc-portfolio .blog-badge {
  position: absolute;
  top: 16px; left: 16px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  z-index: 2;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}
#ngoc-portfolio .badge-orange {
  background: var(--white);
  color: var(--core);
}

#ngoc-portfolio .blog-card-body {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
#ngoc-portfolio .blog-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 600;
}
#ngoc-portfolio .blog-category {
  color: var(--core);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
#ngoc-portfolio .meta-dot { color: var(--line-strong); }

#ngoc-portfolio .blog-title {
  font-size: 1.16rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: var(--ink) !important;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.9em;
}
#ngoc-portfolio .blog-card.featured-blog .blog-title {
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  -webkit-line-clamp: 3;
  min-height: auto;
}
#ngoc-portfolio .blog-title a {
  color: inherit !important;
  transition: color 0.2s ease;
}
#ngoc-portfolio .blog-title a:hover {
  color: var(--core) !important;
}

#ngoc-portfolio .blog-excerpt {
  color: var(--ink2);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 4.9em;
  flex: 1;
}

#ngoc-portfolio .blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  margin-top: auto;
}
#ngoc-portfolio .blog-author {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
}
#ngoc-portfolio .author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--core);
}
#ngoc-portfolio .blog-tag {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--paper);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
}
#ngoc-portfolio .blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--core) !important;
  transition: var(--transition);
}
#ngoc-portfolio .blog-read-more:hover {
  transform: translateX(4px);
  color: var(--ember) !important;
}

/* ========================================================
   TRANG CHI TIẾT BÀI VIẾT (blog-detail.html)
   ======================================================== */

/* Thanh tiến độ đọc đỉnh trang */
#ngoc-portfolio .top-read-progress {
  position: fixed;
  top: 0; left: 0;
  height: 4px;
  width: 0%;
  background: var(--grad);
  z-index: 10000;
  transition: width 0.1s linear;
}

/* Hero Header Bài Viết */
#ngoc-portfolio .blog-detail-hero {
  padding: 155px 0 60px;
  background:
    radial-gradient(ellipse 60% 50% at 75% 30%, rgba(244, 123, 26, 0.12), transparent 70%),
    radial-gradient(ellipse 45% 45% at 20% 80%, rgba(75, 91, 232, 0.08), transparent 70%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}
#ngoc-portfolio .blog-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
#ngoc-portfolio .blog-breadcrumb a {
  color: var(--muted) !important;
  transition: color 0.2s;
}
#ngoc-portfolio .blog-breadcrumb a:hover {
  color: var(--core) !important;
}
#ngoc-portfolio .bread-sep {
  font-size: 0.7rem;
  color: var(--faint);
}

#ngoc-portfolio .blog-detail-meta-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
#ngoc-portfolio .meta-item {
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
#ngoc-portfolio .meta-item i { color: var(--core); }

#ngoc-portfolio .blog-detail-title {
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--ink) !important;
  margin-bottom: 20px;
}
#ngoc-portfolio .blog-detail-subtitle {
  font-size: 1.15rem;
  color: var(--ink2);
  line-height: 1.7;
  max-width: 860px;
  margin-bottom: 36px;
}

#ngoc-portfolio .blog-detail-author-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 20px;
}
#ngoc-portfolio .author-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
#ngoc-portfolio .detail-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--core);
  box-shadow: 0 4px 12px rgba(244, 123, 26, 0.2);
}
#ngoc-portfolio .author-left strong {
  display: block;
  font-size: 1rem;
  color: var(--ink);
}
#ngoc-portfolio .author-left span {
  display: block;
  font-size: 0.84rem;
  color: var(--muted);
}
#ngoc-portfolio .social-share-quick {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink2);
}
#ngoc-portfolio .share-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .share-btn:hover {
  background: var(--core);
  color: #ffffff !important;
  border-color: var(--core);
  transform: translateY(-2px);
}

/* ẢNH BÌA BÀI VIẾT CHI TIẾT (FEATURED COVER IMAGE) */
#ngoc-portfolio .blog-detail-cover-wrap {
  width: 100%;
  max-height: 520px;
  aspect-ratio: 21 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 36px;
  background: var(--paper2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  position: relative;
}

@media (max-width: 768px) {
  #ngoc-portfolio .blog-detail-cover-wrap {
    aspect-ratio: 16 / 9;
    max-height: 280px;
    margin-top: 24px;
    border-radius: 14px;
  }
}

#ngoc-portfolio .blog-detail-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

#ngoc-portfolio .blog-detail-cover-wrap:hover .blog-detail-cover-img {
  transform: scale(1.02);
}

/* ========================================================
   LAYOUT 2 CỘT: SIDEBAR BÊN TRÁI & NỘI DUNG BÊN PHẢI
   ======================================================== */
#ngoc-portfolio .blog-detail-main {
  background: var(--white);
  padding: 60px 0 100px;
}
#ngoc-portfolio .blog-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 60px;
  align-items: start;
}

/* CỘT TRÁI (STICKY SIDEBAR) */
#ngoc-portfolio .blog-sidebar-left {
  position: -webkit-sticky !important;
  position: sticky !important;
  top: 90px !important;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-self: start;
  z-index: 50;
}

/* WIDGET TIẾN ĐỘ ĐỌC (%) */
#ngoc-portfolio .reading-progress-widget {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .progress-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
#ngoc-portfolio .progress-widget-tag {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
#ngoc-portfolio .progress-widget-tag i { color: var(--core); }
#ngoc-portfolio .progress-percent-val {
  font-size: 1.85rem;
  font-weight: 900;
  color: var(--core);
  letter-spacing: -0.03em;
  line-height: 1;
}

#ngoc-portfolio .reading-bar-track {
  width: 100%;
  height: 8px;
  background: var(--paper2);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 12px;
}
#ngoc-portfolio .reading-bar-fill {
  height: 100%;
  background: var(--grad);
  border-radius: 99px;
  transition: width 0.15s ease-out;
}
#ngoc-portfolio .progress-status-text {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink2);
}
#ngoc-portfolio .reading-est-time {
  color: var(--muted);
  font-weight: 500;
}

/* WIDGET MENU MỤC LỤC BÀI VIẾT (TOC) */
#ngoc-portfolio .toc-widget {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .toc-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
#ngoc-portfolio .toc-header i { color: var(--core); font-size: 1rem; }
#ngoc-portfolio .toc-header h4 {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 1px;
}

#ngoc-portfolio .toc-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
#ngoc-portfolio .toc-link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--ink2) !important;
  font-size: 0.88rem;
  line-height: 1.5;
  font-weight: 500;
  transition: var(--transition);
  text-decoration: none !important;
  border-left: 3px solid transparent;
}
#ngoc-portfolio .toc-num {
  font-size: 0.74rem;
  font-weight: 800;
  color: var(--faint);
  background: var(--white);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--line);
  flex-shrink: 0;
  margin-top: 2px;
}
#ngoc-portfolio .toc-link:hover {
  background: var(--white);
  color: var(--core) !important;
  transform: translateX(3px);
}
#ngoc-portfolio .toc-link.active {
  background: var(--white);
  color: var(--core) !important;
  font-weight: 700;
  border-left-color: var(--core);
  box-shadow: 0 4px 14px rgba(21, 23, 51, 0.05);
}
#ngoc-portfolio .toc-link.active .toc-num {
  background: var(--core);
  color: #ffffff;
  border-color: var(--core);
}

/* NÚT THAO TÁC PHỤ SIDEBAR */
#ngoc-portfolio .sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
#ngoc-portfolio .btn-sm-back {
  padding: 11px 20px;
  font-size: 0.86rem;
  justify-content: center;
  background: var(--paper) !important;
}
#ngoc-portfolio .btn-sm-talk {
  padding: 12px 20px;
  font-size: 0.88rem;
  justify-content: center;
}

/* ========================================================
   CỘT PHẢI: TYPOGRAPHY BÀI VIẾT NỘI DUNG
   ======================================================== */
#ngoc-portfolio .blog-content-body {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--ink2);
}
#ngoc-portfolio .article-lede {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--ink);
  font-weight: 500;
  padding: 26px 30px;
  background: var(--paper);
  border-left: 4px solid var(--core);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 40px;
}

#ngoc-portfolio .article-section {
  margin-bottom: 50px;
  padding-top: 20px;
}
#ngoc-portfolio .blog-content-body h2,
#ngoc-portfolio .article-section h2 {
  font-size: clamp(1.4rem, 2.3vw, 1.85rem);
  font-weight: 800;
  color: var(--ink) !important;
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-top: 36px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
#ngoc-portfolio .blog-content-body h2:first-child,
#ngoc-portfolio .article-section h2:first-child {
  margin-top: 0;
}
#ngoc-portfolio .blog-content-body h3,
#ngoc-portfolio .article-section h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  font-weight: 700;
  color: var(--ink) !important;
  line-height: 1.4;
  margin-top: 28px;
  margin-bottom: 14px;
}
#ngoc-portfolio .blog-content-body h4,
#ngoc-portfolio .article-section h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--core);
  margin-top: 22px;
  margin-bottom: 10px;
}
#ngoc-portfolio .blog-content-body p,
#ngoc-portfolio .article-section p {
  margin-bottom: 20px;
  line-height: 1.85;
}
#ngoc-portfolio .blog-content-body ul,
#ngoc-portfolio .article-section ul,
#ngoc-portfolio .blog-content-body ol,
#ngoc-portfolio .article-section ol {
  margin: 0 0 24px 20px;
  padding-left: 10px;
}
#ngoc-portfolio .blog-content-body ul li,
#ngoc-portfolio .article-section ul li,
#ngoc-portfolio .blog-content-body ol li,
#ngoc-portfolio .article-section ol li {
  margin-bottom: 12px;
  line-height: 1.75;
}
#ngoc-portfolio .blog-content-body strong,
#ngoc-portfolio .article-section strong {
  color: var(--ink);
}
#ngoc-portfolio .blog-content-body blockquote {
  margin: 28px 0;
  padding: 18px 24px;
  background: rgba(244, 123, 26, 0.06);
  border-left: 4px solid var(--core);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink);
  font-style: italic;
}
#ngoc-portfolio .blog-content-body blockquote p {
  margin: 0;
}
#ngoc-portfolio .blog-content-body pre {
  background: #080d1e;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  overflow-x: auto;
  margin: 24px 0;
  font-family: var(--font-code, monospace);
  font-size: 0.9rem;
  line-height: 1.6;
  color: #00f0ff;
}
#ngoc-portfolio .blog-content-body code {
  font-family: var(--font-code, monospace);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--core);
}
#ngoc-portfolio .blog-content-body pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
#ngoc-portfolio .blog-content-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 24px 0;
  display: block;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* Callout Box */
#ngoc-portfolio .article-callout {
  display: flex;
  gap: 20px;
  background: rgba(244, 123, 26, 0.08);
  border: 1px solid rgba(244, 123, 26, 0.25);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 32px 0;
}
#ngoc-portfolio .callout-icon {
  width: 44px;
  height: 44px;
  background: var(--core);
  color: #ffffff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
#ngoc-portfolio .callout-text strong {
  display: block;
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 6px;
}
#ngoc-portfolio .callout-text p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--ink2);
}

/* Framework 3 Cards */
#ngoc-portfolio .framework-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 28px 0;
}
#ngoc-portfolio .framework-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .framework-step {
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--core);
  display: block;
  margin-bottom: 8px;
}
#ngoc-portfolio .framework-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--ink);
}
#ngoc-portfolio .framework-card p {
  font-size: 0.88rem;
  margin: 0;
  line-height: 1.6;
}

/* Bảng số liệu bài viết */
#ngoc-portfolio .article-table-wrap {
  overflow-x: auto;
  margin: 32px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  text-align: left;
}
#ngoc-portfolio .article-table th {
  background: var(--paper2);
  color: var(--ink);
  font-weight: 800;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
#ngoc-portfolio .article-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--ink2);
}
#ngoc-portfolio .article-table tbody tr:last-child td {
  border-bottom: none;
}
#ngoc-portfolio .article-table tbody tr:hover {
  background: var(--paper);
}
#ngoc-portfolio .stat-green {
  color: var(--p-trade);
  font-weight: 800;
}

/* Blockquote */
#ngoc-portfolio .article-section blockquote {
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.75;
  color: var(--ink);
  border-left: 4px solid var(--core);
  padding: 20px 28px;
  margin: 32px 0;
  background: var(--paper);
  border-radius: 0 16px 16px 0;
}

/* 4 Nguyên tắc */
#ngoc-portfolio .principles-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0;
}
#ngoc-portfolio .principle-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 26px;
}
#ngoc-portfolio .p-num {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--core);
  background: var(--white);
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  line-height: 1;
}
#ngoc-portfolio .principle-item h4 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 6px;
}
#ngoc-portfolio .principle-item p {
  margin: 0;
  font-size: 0.94rem;
}

/* Box tác giả cuối bài */
#ngoc-portfolio .article-author-card {
  display: flex;
  gap: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  margin: 60px 0 40px;
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .author-card-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--core);
  flex-shrink: 0;
}
#ngoc-portfolio .author-card-role {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--core);
  display: block;
  margin-bottom: 4px;
}
#ngoc-portfolio .author-card-info h3 {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 12px;
}
#ngoc-portfolio .author-card-info p {
  font-size: 0.94rem;
  color: var(--ink2);
  line-height: 1.7;
  margin-bottom: 20px;
}
#ngoc-portfolio .author-card-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
#ngoc-portfolio .btn-sm {
  padding: 10px 20px;
  font-size: 0.86rem;
}

/* Bài viết liên quan */
#ngoc-portfolio .related-posts-section {
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
#ngoc-portfolio .related-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
#ngoc-portfolio .related-title i { color: var(--core); }
#ngoc-portfolio .related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
#ngoc-portfolio .related-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  text-decoration: none !important;
  display: flex;
  flex-direction: column;
}
#ngoc-portfolio .related-card:hover {
  background: var(--white);
  border-color: rgba(244, 123, 26, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
#ngoc-portfolio .related-cat {
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--core);
  margin-bottom: 8px;
}
#ngoc-portfolio .related-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink) !important;
  line-height: 1.45;
  margin-bottom: 12px;
  flex: 1;
}
#ngoc-portfolio .related-time {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Responsive Blog Detail */
@media (max-width: 1080px) {
  #ngoc-portfolio .blog-layout {
    grid-template-columns: 290px 1fr;
    gap: 40px;
  }
}
@media (max-width: 900px) {
  #ngoc-portfolio .blog-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  #ngoc-portfolio .blog-sidebar-left {
    position: static;
  }
  #ngoc-portfolio .framework-grid {
    grid-template-columns: 1fr;
  }
  #ngoc-portfolio .related-grid {
    grid-template-columns: 1fr;
  }
  #ngoc-portfolio .article-author-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  #ngoc-portfolio .author-card-links {
    justify-content: center;
  }
}

/* ========================================================
   TRANG DANH MỤC KIẾN THỨC ĐỘC LẬP (blog.html)
   ======================================================== */
#ngoc-portfolio .blog-page-hero {
  padding: 155px 0 60px;
  background:
    radial-gradient(ellipse 60% 55% at 75% 35%, rgba(244, 123, 26, 0.12), transparent 70%),
    radial-gradient(ellipse 45% 45% at 20% 75%, rgba(75, 91, 232, 0.08), transparent 70%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}
#ngoc-portfolio .blog-hero-center {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
#ngoc-portfolio .blog-page-title {
  font-size: clamp(2.4rem, 4.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--ink) !important;
  margin: 16px 0 14px;
}
#ngoc-portfolio .blog-page-desc {
  font-size: 1.06rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 660px;
  margin: 0 auto 36px;
}

/* Thanh tìm kiếm Live Search */
#ngoc-portfolio .blog-search-wrap {
  position: relative;
  max-width: 600px;
  margin: 0 auto 36px;
}
#ngoc-portfolio .search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--core);
  font-size: 1.1rem;
  pointer-events: none;
}
#ngoc-portfolio .blog-search-wrap input {
  width: 100% !important;
  padding: 16px 50px 16px 52px !important;
  border-radius: var(--radius-pill) !important;
  border: 1px solid var(--line-strong) !important;
  background: var(--white) !important;
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--ink) !important;
  box-shadow: 0 10px 30px -10px rgba(21, 23, 51, 0.08) !important;
  outline: none;
  transition: var(--transition);
}
#ngoc-portfolio .blog-search-wrap input:focus {
  border-color: var(--core) !important;
  box-shadow: 0 12px 35px -10px rgba(244, 123, 26, 0.25) !important;
}
#ngoc-portfolio .search-clear-btn {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--paper2);
  border: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: var(--muted);
  font-size: 0.76rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
#ngoc-portfolio .search-clear-btn:hover {
  background: var(--core);
  color: #ffffff;
}

/* Thống kê nhanh */
#ngoc-portfolio .blog-stats-bar {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  background: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
#ngoc-portfolio .bstat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--muted);
}
#ngoc-portfolio .bstat-item strong {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--core);
}
#ngoc-portfolio .bstat-divider {
  width: 1px;
  height: 20px;
  background: var(--line);
}

/* Main listing */
#ngoc-portfolio .blog-page-main {
  background: var(--bg3);
  padding: 60px 0 100px;
}

/* Không tìm thấy kết quả */
#ngoc-portfolio .no-results-box {
  text-align: center;
  padding: 80px 24px;
  background: var(--white);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  margin: 40px 0;
}
#ngoc-portfolio .no-results-box i {
  font-size: 3.5rem;
  color: var(--faint);
  margin-bottom: 20px;
  display: block;
}
#ngoc-portfolio .no-results-box h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}
#ngoc-portfolio .no-results-box p {
  color: var(--muted);
  max-width: 480px;
  margin: 0 auto 20px;
  font-size: 0.94rem;
}

/* Newsletter Card */
#ngoc-portfolio .newsletter-card {
  margin-top: 70px;
  background: linear-gradient(135deg, var(--white), var(--paper));
  border: 1px solid rgba(244, 123, 26, 0.25);
  border-radius: var(--radius);
  padding: 44px 50px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow);
}
#ngoc-portfolio .newsletter-tag {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--core);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
#ngoc-portfolio .newsletter-left h3 {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
#ngoc-portfolio .newsletter-left p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}
#ngoc-portfolio .newsletter-form {
  display: flex;
  gap: 12px;
}
#ngoc-portfolio .newsletter-form input {
  flex: 1;
  background: var(--white) !important;
  border: 1px solid var(--line-strong) !important;
  border-radius: var(--radius-pill) !important;
  padding: 14px 20px !important;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--ink) !important;
  outline: none;
}
#ngoc-portfolio .newsletter-form input:focus {
  border-color: var(--core) !important;
}

@media (max-width: 900px) {
  #ngoc-portfolio .newsletter-card {
    grid-template-columns: 1fr;
    padding: 30px 24px;
    gap: 24px;
  }
  #ngoc-portfolio .newsletter-form {
    flex-direction: column;
  }
  #ngoc-portfolio .blog-stats-bar {
    flex-direction: column;
    gap: 10px;
    width: 100%;
    border-radius: var(--radius);
  }
  #ngoc-portfolio .bstat-divider {
    display: none;
  }

  /* KHẮC PHỤC LỖI TIẾN ĐỘ ĐỌC & MỤC LỤC TRÊN MOBILE */
  #ngoc-portfolio .blog-detail-main {
    padding: 24px 0 60px !important;
  }
  #ngoc-portfolio .blog-layout {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
    display: flex !important;
    flex-direction: column !important;
  }
  #ngoc-portfolio .blog-sidebar-left {
    position: static !important;
    top: auto !important;
    width: 100% !important;
    z-index: 1 !important;
    margin-bottom: 12px !important;
    order: 1 !important;
  }
  #ngoc-portfolio .blog-content-body {
    order: 2 !important;
    width: 100% !important;
    font-size: 1.02rem !important;
    line-height: 1.75 !important;
  }
  /* Ẩn widget tiến độ cồng kềnh trên mobile - đã có thanh tiến độ sát đỉnh màn hình */
  #ngoc-portfolio .reading-progress-widget,
  #ngoc-portfolio .sidebar-actions {
    display: none !important;
  }
  /* Mục lục có thể thu gọn mở rộng trên mobile */
  #ngoc-portfolio .toc-widget {
    width: 100% !important;
    padding: 14px 18px !important;
    border-radius: 16px !important;
    background: var(--white) !important;
    border: 1px solid var(--line) !important;
    box-shadow: var(--shadow-sm) !important;
  }
  #ngoc-portfolio .toc-header {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0 !important;
    font-size: 0.92rem;
  }
  #ngoc-portfolio .toc-widget.is-open .toc-header {
    margin-bottom: 14px !important;
  }
  #ngoc-portfolio .toc-toggle-icon {
    font-size: 0.8rem;
    color: var(--core);
    transition: transform 0.25s ease;
  }
  #ngoc-portfolio .toc-widget:not(.is-open) .toc-list {
    display: none !important;
  }
  #ngoc-portfolio .toc-widget.is-open .toc-toggle-icon {
    transform: rotate(180deg);
  }
  #ngoc-portfolio .toc-link {
    padding: 8px 12px !important;
    font-size: 0.85rem !important;
  }

  /* KHẮC PHỤC BẢNG DỮ LIỆU CUỘN NGANG TRÊN MOBILE */
  #ngoc-portfolio .article-table-wrap {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin: 24px 0 !important;
    border-radius: 12px !important;
  }
  #ngoc-portfolio .article-table {
    min-width: 520px !important;
    font-size: 0.88rem !important;
  }

  /* BỘ LỌC BÀI VIẾT & DỰ ÁN TRƯỢT NGANG MƯỢT MÀ */
  #ngoc-portfolio .blog-filters,
  #ngoc-portfolio .portfolio-filters {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 8px !important;
    padding: 4px 16px 14px !important;
    margin: 0 -16px 24px !important;
    justify-content: flex-start !important;
  }
  #ngoc-portfolio .blog-filters::-webkit-scrollbar,
  #ngoc-portfolio .portfolio-filters::-webkit-scrollbar {
    display: none !important;
  }
  #ngoc-portfolio .bfilter-btn,
  #ngoc-portfolio .filter-btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    padding: 9px 18px !important;
    font-size: 0.82rem !important;
    border-radius: 999px !important;
  }

  /* CARD BÀI VIẾT TRÊN MOBILE */
  #ngoc-portfolio .blog-grid {
    grid-template-columns: 1fr !important;
    gap: 22px !important;
    width: 100% !important;
  }
  #ngoc-portfolio .blog-card {
    width: 100% !important;
    height: auto !important;
    min-height: auto !important;
  }
  #ngoc-portfolio .blog-card.featured-blog {
    grid-column: span 1 !important;
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
  }
  #ngoc-portfolio .blog-card-thumb,
  #ngoc-portfolio .blog-card.featured-blog .blog-card-thumb,
  #ngoc-portfolio .blog-thumb-bg {
    height: 195px !important;
    min-height: 195px !important;
    width: 100% !important;
  }
  #ngoc-portfolio .blog-card-body {
    padding: 18px 20px !important;
    flex: none !important;
  }
  #ngoc-portfolio .blog-meta {
    display: flex !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 6px 8px !important;
    font-size: 0.78rem !important;
    margin-bottom: 10px !important;
  }
  #ngoc-portfolio .blog-meta span {
    white-space: nowrap !important;
  }
  #ngoc-portfolio .blog-read-time {
    display: inline-flex !important;
    align-items: center !important;
    gap: 5px !important;
    white-space: nowrap !important;
  }
  #ngoc-portfolio .blog-title {
    font-size: 1.12rem !important;
    min-height: auto !important;
    line-height: 1.45 !important;
    -webkit-line-clamp: 3 !important;
  }
  #ngoc-portfolio .blog-excerpt {
    font-size: 0.88rem !important;
    min-height: auto !important;
    line-height: 1.6 !important;
    -webkit-line-clamp: 4 !important;
    margin-bottom: 16px !important;
  }

  /* PORTFOLIO GRID */
  #ngoc-portfolio .portfolio-grid {
    grid-template-columns: 1fr !important;
    gap: 22px !important;
  }
  #ngoc-portfolio .expertise-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
  }
  #ngoc-portfolio .project-card {
    width: 100% !important;
  }
}

/* ==========================================
   BLOG PAGINATION
   ========================================== */
#ngoc-portfolio .blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 50px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

#ngoc-portfolio .page-btn {
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  text-decoration: none;
}

#ngoc-portfolio .page-btn:hover:not(:disabled) {
  border-color: var(--core);
  color: var(--core);
  background: rgba(244, 123, 26, 0.08);
  transform: translateY(-2px);
}

#ngoc-portfolio .page-btn.active {
  background: var(--core);
  color: #fff;
  border-color: var(--core);
  box-shadow: 0 4px 14px rgba(244, 123, 26, 0.35);
  pointer-events: none;
}

#ngoc-portfolio .page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

#ngoc-portfolio .page-dots {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 44px;
  color: var(--muted);
  font-weight: 700;
  font-size: 1rem;
}