/* ============================================================
   HUYỀN THƯƠNG BLOG — DESIGN SYSTEM
   Phong cách: Soft Luxury Editorial
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400;1,500&family=Be+Vietnam+Pro:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- CSS CUSTOM PROPERTIES ---- */
:root {
  --bg-main: #F7F4FA;
  --bg-section: #FFFFFF;
  --primary-text: #2E2538;
  --secondary-text: #6D6278;
  --accent-primary: #8E6AAE;
  --accent-secondary: #CDB8E0;
  --line-soft: #E8DFF0;
  --success: #4F7A5A;
  --warning: #C68945;
  --error: #B45B5B;

  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Be Vietnam Pro', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1400px;
  --container-pad-desktop: 8px;
  --container-pad-tablet: 24px;
  --container-pad-mobile: 16px;

  --radius-sm: 8px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --shadow-soft: 0 2px 16px rgba(46, 37, 56, 0.07);
  --shadow-hover: 0 8px 32px rgba(46, 37, 56, 0.13);

  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--primary-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: 0.2px;
  color: var(--primary-text);
  line-height: 1.2;
}

.display { font-size: clamp(40px, 5vw, 56px); line-height: 1.1; }
h1 { font-size: clamp(32px, 4vw, 44px); line-height: 1.15; }
h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.2; }
h3 { font-size: clamp(20px, 2.5vw, 26px); line-height: 1.3; }

.body-lg { font-size: 18px; line-height: 1.75; }
.body-md { font-size: 16px; line-height: 1.75; }
.body-sm { font-size: 14px; line-height: 1.7; }
.caption { font-size: 12px; line-height: 1.5; font-weight: 500; letter-spacing: 0.5px; }

/* ---- LAYOUT ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad-desktop);
}

.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-lg { padding: 120px 0; }

/* ============================================================
   HEADER — Redesign hoàn toàn
   ============================================================ */

/* ---- TOP BAR ---- */
.header-top-bar {
  background: var(--primary-text);
  padding: 0;
  overflow: hidden;
  max-height: 42px;
  transition: max-height 400ms ease, opacity 400ms ease;
  opacity: 1;
}
.header-top-bar.hidden { max-height: 0; opacity: 0; }

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 42px;
}

.header-top-tagline {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-style: italic;
}
.header-top-tagline i { font-size: 9px; color: var(--accent-primary); }

.header-top-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-top-socials a {
  color: rgba(255,255,255,0.45);
  font-size: 12px;
  transition: color var(--transition-fast);
}
.header-top-socials a:hover { color: var(--accent-secondary); }

/* ---- HEADER MAIN ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition-base);
}

.header-main {
  background: rgba(247, 244, 250, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}
.site-header.scrolled .header-main {
  box-shadow: 0 4px 24px rgba(46, 37, 56, 0.08);
  background: rgba(247, 244, 250, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}

/* ---- LOGO ---- */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-monogram {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-primary), #b08fd4);
  border-radius: 10px;
  overflow: hidden;
  display: block;
  box-shadow: 0 4px 12px rgba(142, 106, 174, 0.35);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  flex-shrink: 0;
}
.logo-monogram img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.logo:hover .logo-monogram {
  transform: translateY(-2px) rotate(-3deg);
  box-shadow: 0 8px 20px rgba(142, 106, 174, 0.45);
}
.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.logo-name {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 500;
  color: var(--primary-text);
  letter-spacing: 0.5px;
  line-height: 1.1;
  transition: color var(--transition-fast);
}
.logo-sub {
  font-size: 11.5px;
  color: var(--secondary-text);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 400;
  line-height: 1;
  margin-top: 2px;
}
.logo:hover .logo-name { color: var(--accent-primary); }

/* ---- NAV DESKTOP ---- */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 14px;
  border-radius: 10px;
  text-decoration: none;
  transition: background var(--transition-fast);
  overflow: hidden;
}
.nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(142, 106, 174, 0.0);
  border-radius: 10px;
  transition: background var(--transition-fast);
}
.nav-link:hover::before { background: rgba(142, 106, 174, 0.07); }
.nav-link.active::before { background: rgba(142, 106, 174, 0.1); }

.nav-link-text {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--secondary-text);
  letter-spacing: 0.2px;
  transition: color var(--transition-fast);
  position: relative;
  z-index: 1;
}
.nav-link:hover .nav-link-text { color: var(--primary-text); }
.nav-link.active .nav-link-text {
  color: var(--accent-primary);
  font-weight: 500;
}

.nav-link-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-primary);
  margin-top: 3px;
  opacity: 0;
  transform: scale(0);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  position: relative;
  z-index: 1;
}
.nav-link.active .nav-link-dot {
  opacity: 1;
  transform: scale(1);
}

/* ---- NAV CTA BUTTON ---- */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  background: var(--accent-primary);
  color: white;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  margin-left: 8px;
  transition: all var(--transition-base);
  letter-spacing: 0.2px;
  box-shadow: 0 2px 8px rgba(142, 106, 174, 0.25);
  flex-shrink: 0;
}
.nav-cta:hover {
  background: #7a58a0;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(142, 106, 174, 0.35);
}
.nav-cta i { font-size: 11px; }

/* ---- HAMBURGER ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
  border-radius: 10px;
  border: 1px solid var(--line-soft);
  background: transparent;
  transition: all var(--transition-fast);
}
.hamburger:hover { background: rgba(142, 106, 174, 0.07); border-color: var(--accent-secondary); }
.hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--primary-text);
  transition: all var(--transition-base);
  transform-origin: center;
}
.hamburger span:nth-child(2) { width: 14px; }
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 20px; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---- MOBILE NAV ---- */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 99;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms ease;
  overflow: hidden;
}
.nav-mobile::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-text);
  opacity: 0.97;
}
.nav-mobile.open { opacity: 1; pointer-events: all; }

.nav-mobile-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 28px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 1;
}
.nav-mobile-logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  font-style: italic;
  color: white;
  letter-spacing: 0.3px;
}
.nav-mobile-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
}
.nav-mobile-close:hover {
  background: rgba(255,255,255,0.08);
  color: white;
}

.nav-mobile-links {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 16px 28px;
  gap: 4px;
}

.nav-mobile-link {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-decoration: none;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 280ms ease, transform 280ms ease, color var(--transition-fast);
}
.nav-mobile.open .nav-mobile-link {
  opacity: 1;
  transform: translateX(0);
}
.nav-mobile-link:last-child { border-bottom: none; }

.nav-mobile-num {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent-primary);
  letter-spacing: 1px;
  font-family: var(--font-mono);
  opacity: 0.8;
  flex-shrink: 0;
  width: 24px;
}

.nav-mobile-link {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
}
.nav-mobile-link:hover, .nav-mobile-link.active {
  color: white;
}
.nav-mobile-link.active .nav-mobile-num { opacity: 1; }

.nav-mobile-footer {
  position: relative;
  z-index: 1;
  padding: 24px 28px 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.nav-mobile-socials {
  display: flex;
  gap: 16px;
}
.nav-mobile-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  transition: all var(--transition-fast);
}
.nav-mobile-socials a:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}
.btn-primary:hover {
  background: #7a58a0;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(142, 106, 174, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-text);
  border: 1px solid var(--line-soft);
}
.btn-secondary:hover {
  border-color: var(--accent-secondary);
  background: rgba(142, 106, 174, 0.05);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-primary);
  padding: 8px 0;
  border-radius: 0;
  border-bottom: 1px solid transparent;
}
.btn-ghost:hover { border-color: var(--accent-primary); }

/* ---- CARDS ---- */
.card {
  background: var(--bg-section);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* ---- TAGS ---- */
.tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(205, 184, 224, 0.30);
  color: var(--accent-primary);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
}

/* ---- SECTION LABEL ---- */
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent-primary);
}
.section-label span {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-primary);
}

/* ---- THIN DIVIDER LINE (Motif A) ---- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--line-soft);
  margin: 48px 0;
}
.divider-short {
  width: 60px;
  height: 0.8px;
  background: var(--accent-secondary);
  margin: 24px 0;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  /* Motif B: watermark text */
  content: 'Huyền Thương';
  position: absolute;
  font-family: var(--font-heading);
  font-size: clamp(80px, 12vw, 160px);
  font-weight: 400;
  color: rgba(142, 106, 174, 0.04);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  letter-spacing: -2px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content { order: 1; }
.hero-image { order: 2; }

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-weight: 500;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 0.8px;
  background: var(--accent-primary);
}

.hero-title {
  font-size: clamp(44px, 5.5vw, 72px);
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: 24px;
  font-style: italic;
  letter-spacing: -0.5px;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 400;
  color: var(--secondary-text);
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.6;
}

.hero-desc {
  font-size: 16px;
  color: var(--secondary-text);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image-wrap {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-height: 560px;
}
.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
}
.hero-image-frame {
  position: absolute;
  inset: 12px;
  border: 0.8px solid rgba(255,255,255,0.35);
  border-radius: calc(var(--radius-lg) - 8px);
  pointer-events: none;
}

/* ============================================================
   FEATURED BLOG
   ============================================================ */
.blog-grid-featured {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-card-cover {
  aspect-ratio: 3/2;
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.blog-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
  filter: saturate(0.85);
}
.card:hover .blog-card-cover img { transform: scale(1.03); }

.blog-card-body { padding: 24px; }
.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.blog-card-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 10px;
  transition: color var(--transition-fast);
}
a:hover .blog-card-title { color: var(--accent-primary); }

.blog-card-excerpt {
  font-size: 14px;
  color: var(--secondary-text);
  line-height: 1.7;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}
a:hover .read-link { gap: 10px; }

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card-cover {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.project-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
  filter: saturate(0.85);
}
.card:hover .project-card-cover img { transform: scale(1.04); }

.project-card-body { padding: 24px; }
.project-year {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--secondary-text);
  font-weight: 500;
  margin-bottom: 8px;
}
.project-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}
a:hover .project-title { color: var(--accent-primary); }

.project-role {
  font-size: 13px;
  color: var(--secondary-text);
  margin-bottom: 12px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.project-result {
  font-size: 13px;
  color: var(--success);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================================
   NOTES SECTION
   ============================================================ */
.notes-list { display: flex; flex-direction: column; gap: 1px; }

.note-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
  transition: opacity var(--transition-base);
}
.note-item:hover { opacity: 0.75; }
.note-item:last-child { border-bottom: none; }

.note-content-title {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 500;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}
a:hover .note-content-title { color: var(--accent-primary); }

.note-text {
  font-size: 14px;
  color: var(--secondary-text);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-date {
  font-size: 12px;
  color: var(--secondary-text);
  white-space: nowrap;
  padding-top: 4px;
}

/* ============================================================
   ABOUT SNIPPET
   ============================================================ */
.about-snippet {
  background: var(--bg-section);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 64px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: center;
}

.about-portrait {
  width: 200px;
  height: 250px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}
.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}
.about-portrait-frame {
  position: absolute;
  inset: 8px;
  border: 0.8px solid rgba(142, 106, 174, 0.3);
  border-radius: calc(var(--radius-md) - 4px);
  pointer-events: none;
}

.about-content-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 400;
  font-style: italic;
  line-height: 1.7;
  color: var(--primary-text);
  margin-bottom: 32px;
}

/* ============================================================
   NEWSLETTER / CTA
   ============================================================ */
.newsletter-section {
  background: var(--primary-text);
  color: white;
  border-radius: var(--radius-lg);
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter-section::before {
  content: 'HT';
  position: absolute;
  font-family: var(--font-heading);
  font-size: 200px;
  font-weight: 500;
  color: rgba(255,255,255,0.03);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  letter-spacing: 10px;
}

.newsletter-title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 400;
  font-style: italic;
  color: white;
  margin-bottom: 16px;
}

.newsletter-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.65);
  max-width: 480px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 420px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  height: 48px;
  padding: 0 20px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
  color: white;
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition-fast);
}
.newsletter-input::placeholder { color: rgba(255,255,255,0.4); }
.newsletter-input:focus { border-color: var(--accent-secondary); }

.newsletter-btn {
  height: 48px;
  padding: 0 24px;
  background: var(--accent-primary);
  color: white;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-base);
  white-space: nowrap;
}
.newsletter-btn:hover { background: #7a58a0; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-section);
  border-top: 1px solid var(--line-soft);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 500;
  font-style: italic;
  color: var(--primary-text);
  margin-bottom: 12px;
  display: block;
}

.footer-tagline {
  font-size: 14px;
  color: var(--secondary-text);
  line-height: 1.7;
  margin-bottom: 24px;
  font-family: var(--font-heading);
  font-style: italic;
}

.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary-text);
  font-size: 14px;
  transition: all var(--transition-fast);
}
.footer-social a:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.footer-nav-title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--primary-text);
  margin-bottom: 20px;
}

.footer-nav-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-nav-list a {
  font-size: 14px;
  color: var(--secondary-text);
  transition: color var(--transition-fast);
}
.footer-nav-list a:hover { color: var(--accent-primary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--line-soft);
}

.footer-copy { font-size: 13px; color: var(--secondary-text); }
.footer-signature {
  font-family: var(--font-heading);
  font-size: 16px;
  font-style: italic;
  color: var(--secondary-text);
}

/* ============================================================
   BLOG LISTING PAGE
   ============================================================ */
.page-hero {
  padding: 80px 0 60px;
  background: var(--bg-section);
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: attr(data-label);
  position: absolute;
  font-family: var(--font-heading);
  font-size: clamp(60px, 10vw, 120px);
  font-weight: 500;
  color: rgba(142, 106, 174, 0.05);
  top: 50%;
  right: 40px;
  transform: translateY(-50%);
  pointer-events: none;
  white-space: nowrap;
}

.page-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 400;
  font-style: italic;
  margin-bottom: 16px;
}

.page-hero-desc {
  font-size: 16px;
  color: var(--secondary-text);
  max-width: 560px;
  line-height: 1.8;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 0;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 48px;
}

.filter-search {
  position: relative;
  flex: 1;
  min-width: 220px;
  max-width: 320px;
}
.filter-search input {
  width: 100%;
  height: 44px;
  padding: 0 16px 0 44px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: var(--bg-section);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--primary-text);
  outline: none;
  transition: border-color var(--transition-fast);
}
.filter-search input:focus { border-color: var(--accent-secondary); }
.filter-search input::placeholder { color: var(--secondary-text); font-size: 13px; }
.filter-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--secondary-text);
  font-size: 14px;
}

.filter-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-tag {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 400;
  color: var(--secondary-text);
  border: 1px solid var(--line-soft);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-tag:hover, .filter-tag.active {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.blog-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.blog-list-row {
  display: flex;
  flex-direction: column;
}

.blog-list-row.featured-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.featured-row .blog-card-cover {
  aspect-ratio: unset;
  height: 100%;
  min-height: 320px;
  border-radius: 0;
}

/* ============================================================
   BLOG DETAIL PAGE
   ============================================================ */
.article-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  align-items: start;
  padding: 64px 0;
}

.article-toc {
  position: sticky;
  top: 96px;
}

.toc-title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--secondary-text);
  margin-bottom: 16px;
}

.toc-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.toc-list a {
  font-size: 13px;
  color: var(--secondary-text);
  line-height: 1.5;
  padding-left: 16px;
  border-left: 1.5px solid var(--line-soft);
  display: block;
  transition: all var(--transition-fast);
}
.toc-list a:hover, .toc-list a.active {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.article-hero-image {
  aspect-ratio: 3/1.2;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: 48px;
}
.article-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.article-meta-sep { color: var(--line-soft); }

.article-title {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  font-style: italic;
  line-height: 1.15;
  margin-bottom: 40px;
}

.article-content {
  font-size: 17px;
  line-height: 1.85;
  color: var(--primary-text);
  max-width: 660px;
}

.article-content h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  margin: 48px 0 20px;
}

.article-content p { margin-bottom: 24px; }

.article-content blockquote {
  border-left: 2px solid var(--accent-primary);
  padding: 20px 28px;
  margin: 36px 0;
  background: rgba(205, 184, 224, 0.15);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-heading);
  font-size: 20px;
  font-style: italic;
  color: var(--primary-text);
  line-height: 1.6;
}

.author-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 32px;
  background: var(--bg-main);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  margin-top: 56px;
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--accent-secondary);
}
.author-avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-name {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 6px;
}
.author-bio { font-size: 14px; color: var(--secondary-text); line-height: 1.7; }

.related-posts { margin-top: 64px; }

/* ============================================================
   PROJECTS PAGE
   ============================================================ */
.projects-hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.project-card-full {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--bg-section);
  transition: all var(--transition-base);
}
.project-card-full:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.project-card-full .cover {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.project-card-full .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: transform 400ms ease;
}
.project-card-full:hover .cover img { transform: scale(1.04); }

.project-card-full .body { padding: 28px; }

.project-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }

.project-desc {
  font-size: 14px;
  color: var(--secondary-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.project-tech-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 20px; }
.tech-chip {
  font-size: 11px;
  padding: 3px 10px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  color: var(--secondary-text);
  font-family: var(--font-mono);
}

/* ============================================================
   NOTES PAGE
   ============================================================ */
.notes-timeline {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.note-card {
  background: var(--bg-section);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
}
.note-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--accent-secondary);
}

.note-card-signature {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-weight: 500;
  margin-bottom: 12px;
}

.note-card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 10px;
}

.note-card-text {
  font-size: 14px;
  color: var(--secondary-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.note-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  padding: 80px 0;
  align-items: start;
}

.about-sidebar { position: sticky; top: 96px; }

.about-portrait-main {
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 28px;
  position: relative;
}
.about-portrait-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}
.about-portrait-main-frame {
  position: absolute;
  inset: 10px;
  border: 0.8px solid rgba(142, 106, 174, 0.25);
  border-radius: calc(var(--radius-lg) - 6px);
  pointer-events: none;
}

.about-sidebar-quote {
  font-family: var(--font-heading);
  font-size: 18px;
  font-style: italic;
  color: var(--secondary-text);
  line-height: 1.6;
  padding-left: 20px;
  border-left: 1.5px solid var(--accent-primary);
}

.about-story-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 400;
  font-style: italic;
  margin-bottom: 24px;
}

.about-story-text {
  font-size: 17px;
  line-height: 1.85;
  color: var(--secondary-text);
  margin-bottom: 24px;
}

.about-timeline { margin: 48px 0; }
.about-timeline-title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 32px;
}

/* ---- TIMELINE redesign ---- */
.timeline-list { display: flex; flex-direction: column; gap: 0; }

.timeline-item {
  display: flex;
  gap: 0;
  position: relative;
  padding-bottom: 36px;
}
.timeline-item:last-child { padding-bottom: 0; }

/* Cột trái: năm */
.timeline-year-col {
  flex: 0 0 72px;
  text-align: right;
  padding-right: 0;
  padding-top: 3px;
}
.timeline-year {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-primary);
  line-height: 1;
  letter-spacing: 0.5px;
}

/* Cột giữa: đường kẻ + dot */
.timeline-spine {
  flex: 0 0 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-section);
  border: 2px solid var(--accent-primary);
  flex-shrink: 0;
  margin-top: 2px;
  position: relative;
  z-index: 1;
  transition: background var(--transition-fast);
}
.timeline-item:hover .timeline-dot {
  background: var(--accent-primary);
}
.timeline-line {
  flex: 1;
  width: 1px;
  background: var(--line-soft);
  margin-top: 6px;
}
.timeline-item:last-child .timeline-line { display: none; }

/* Cột phải: nội dung */
.timeline-content {
  flex: 1;
  padding-top: 0;
  padding-left: 8px;
}
.timeline-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 500;
  color: var(--primary-text);
  margin-bottom: 6px;
  line-height: 1.3;
}
.timeline-desc {
  font-size: 13px;
  color: var(--secondary-text);
  line-height: 1.7;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-main);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
  flex-shrink: 0;
}

.currently-section {
  margin-top: 48px;
  padding: 32px;
  background: rgba(142, 106, 174, 0.06);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
}
.currently-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 16px;
}
.currently-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--secondary-text);
}
.currently-item:last-child { border-bottom: none; }
.currently-item-icon { color: var(--accent-primary); }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  padding: 80px 0;
  align-items: start;
}

.contact-info-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 400;
  font-style: italic;
  margin-bottom: 20px;
}

.contact-info-text {
  font-size: 16px;
  color: var(--secondary-text);
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-links { display: flex; flex-direction: column; gap: 14px; }
.contact-link-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-size: 14px;
}
.contact-link-item:hover {
  border-color: var(--accent-secondary);
  background: rgba(142, 106, 174, 0.04);
}
.contact-link-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(142, 106, 174, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  flex-shrink: 0;
}
.contact-link-label { font-size: 11px; color: var(--secondary-text); letter-spacing: 0.5px; }
.contact-link-value { font-size: 14px; color: var(--primary-text); font-weight: 500; }

.contact-form {
  background: var(--bg-section);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 32px;
}

.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--secondary-text);
  margin-bottom: 8px;
}
.form-input, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--primary-text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 3px rgba(142, 106, 174, 0.1);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--secondary-text); opacity: 0.6; }
.form-textarea { resize: vertical; min-height: 120px; line-height: 1.7; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-status {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-top: 16px;
  display: none;
}
.form-status.success {
  background: rgba(79, 122, 90, 0.1);
  color: var(--success);
  border: 1px solid rgba(79, 122, 90, 0.2);
  display: block;
}
.form-status.error {
  background: rgba(180, 91, 91, 0.1);
  color: var(--error);
  border: 1px solid rgba(180, 91, 91, 0.2);
  display: block;
}

/* ============================================================
   404 PAGE
   ============================================================ */
.notfound {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
}
.notfound-number {
  font-family: var(--font-heading);
  font-size: clamp(80px, 15vw, 160px);
  font-weight: 300;
  color: rgba(142, 106, 174, 0.15);
  line-height: 1;
  margin-bottom: 8px;
}
.notfound-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-style: italic;
  font-weight: 400;
  margin-bottom: 16px;
}
.notfound-desc { font-size: 16px; color: var(--secondary-text); margin-bottom: 40px; }

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms ease, transform 500ms ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1199px) {
  .container { padding: 0 var(--container-pad-tablet); }
  .hero-grid { gap: 48px; }
  .blog-grid-featured { grid-template-columns: repeat(2, 1fr); }
  .blog-grid-featured .card:last-child { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .article-layout { grid-template-columns: 200px 1fr; gap: 40px; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-hero-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { grid-template-columns: 1fr 1.5fr; gap: 48px; }
  .contact-layout { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 767px) {
  .container { padding: 0 var(--container-pad-mobile); }

  /* ---- NAV MOBILE ---- */
  .nav-desktop { display: none; }
  .hamburger { display: flex; }
  .nav-mobile { display: flex; }
  .header-top-bar { display: none; }
  .header-inner { height: 62px; gap: 16px; }
  .logo-monogram { width: 36px; height: 36px; font-size: 13px; }
  .logo-name { font-size: 22px; }
  .logo-sub { display: none; }

  /* ---- HERO ---- */
  .hero { padding: 48px 0 40px; }
  .hero::before { font-size: 72px; opacity: 0.5; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-image { order: 1; }
  .hero-content { order: 2; }
  .hero-image-wrap { max-height: 320px; border-radius: var(--radius-md); }
  .hero-title { font-size: 48px; }
  .hero-tagline { font-size: 17px; }
  .hero-desc { font-size: 15px; margin-bottom: 28px; }
  .hero-actions { gap: 10px; }
  .hero-actions .btn { padding: 11px 22px; font-size: 13px; }
  .hero-eyebrow { margin-bottom: 16px; }

  /* ---- SECTIONS ---- */
  .section, .section-lg { padding: 48px 0; }
  .section-sm { padding: 28px 0; }

  /* ---- BLOG GRID ---- */
  .blog-grid-featured { grid-template-columns: 1fr; gap: 20px; }
  .blog-grid-featured .card:last-child { display: block; }
  .blog-card-body { padding: 18px; }
  .blog-card-title { font-size: 19px; }
  .blog-list-grid { grid-template-columns: 1fr; gap: 20px; }
  .blog-list-row.featured-row { grid-template-columns: 1fr; grid-column: auto; }
  .featured-row .blog-card-cover { min-height: 200px; }

  /* ---- PROJECTS ---- */
  .projects-grid { grid-template-columns: 1fr; gap: 20px; }
  .projects-hero-grid { grid-template-columns: 1fr; gap: 20px; }

  /* ---- NOTES ---- */
  .notes-timeline { grid-template-columns: 1fr; gap: 16px; }
  .note-card { padding: 22px; }

  /* ---- ABOUT SNIPPET (home) ---- */
  .about-snippet {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 20px;
    text-align: center;
  }
  .about-portrait { width: 100px; height: 126px; margin: 0 auto; }
  .about-content-text { font-size: 18px; }

  /* ---- NEWSLETTER ---- */
  .newsletter-section { padding: 36px 20px; border-radius: var(--radius-md); }
  .newsletter-title { font-size: 26px; }
  .newsletter-desc { font-size: 14px; margin-bottom: 28px; }
  .newsletter-form { flex-direction: column; gap: 10px; }
  .newsletter-input, .newsletter-btn { width: 100%; border-radius: var(--radius-pill); }
  .newsletter-btn { height: 48px; }

  /* ---- FOOTER ---- */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .site-footer { padding: 48px 0 24px; }

  /* ---- PAGE HERO ---- */
  .page-hero { padding: 48px 0 36px; }
  .page-hero::before { display: none; }
  .page-hero-title { font-size: 40px; }
  .page-hero-desc { font-size: 15px; }

  /* ---- FILTER BAR ---- */
  .filter-bar { padding: 16px 0; gap: 10px; }
  .filter-search { min-width: 100%; max-width: 100%; }
  .filter-tags { gap: 6px; }
  .filter-tag { font-size: 12px; padding: 7px 14px; }

  /* ---- BLOG DETAIL ---- */
  .article-layout { grid-template-columns: 1fr; gap: 0; padding: 32px 0; }
  .article-toc { display: none; }
  .article-title { font-size: 28px; margin-bottom: 28px; }
  .article-hero-image { border-radius: var(--radius-md); margin-bottom: 32px; aspect-ratio: 3/2; }
  .article-content { font-size: 16px; }
  .article-content blockquote { padding: 16px 20px; font-size: 17px; }
  .author-box { flex-direction: column; gap: 14px; padding: 22px; }

  /* ---- ABOUT PAGE ---- */
  .about-layout { grid-template-columns: 1fr; gap: 0; padding: 40px 0; }
  .about-sidebar { position: static; margin-bottom: 40px; }
  .about-portrait-main { aspect-ratio: 3/2; max-height: 280px; border-radius: var(--radius-md); }
  .about-story-title { font-size: 28px; }
  .about-story-text { font-size: 15px; }
  .timeline-year-col { flex: 0 0 52px; }
  .timeline-year { font-size: 12px; }
  .timeline-title { font-size: 15px; }
  .skills-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .currently-section { padding: 22px; }

  /* ---- CONTACT PAGE ---- */
  .contact-layout { grid-template-columns: 1fr; gap: 32px; padding: 40px 0; }
  .contact-form { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-info-title { font-size: 28px; }
  .form-title { font-size: 20px; margin-bottom: 24px; }

  /* ---- 404 ---- */
  .notfound { padding: 60px 20px; }

  /* ---- DIVIDER ---- */
  .divider { margin: 32px 0; }

  /* ---- SECTION LABEL ---- */
  .section-label { margin-bottom: 12px; }
}

/* ---- EXTRA SMALL (dưới 380px) ---- */
@media (max-width: 380px) {
  .hero-title { font-size: 40px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .btn { padding: 10px 18px; font-size: 13px; }
  .skills-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   MISC UTILITIES
   ============================================================ */
.text-accent { color: var(--accent-primary); }
.text-muted { color: var(--secondary-text); }
.italic { font-style: italic; }
.font-heading { font-family: var(--font-heading); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border-width: 0;
}