/* ==========================================================================
   Trần Tú Linh — Fashion & Wardrobe Design Portfolio (style.css)
   Palette: Wild Cherry #340505 + Deep Velvet #0c0202 + Champagne Gold #d4af37
   ========================================================================== */

:root {
  --bg: #0c0202;
  --bg-subtle: #140303;
  --surface: rgba(26, 5, 5, 0.55);
  --surface-hover: rgba(52, 5, 5, 0.75);
  --surface-solid: #180303;
  --surface-translucent: rgba(28, 4, 4, 0.45);
  --cherry: #340505;
  --cherry-accent: #6b0c0c;
  --cherry-glow: rgba(107, 12, 12, 0.35);
  --gold: #d4af37;
  --gold-glow: rgba(212, 175, 55, 0.25);
  --gold-muted: rgba(212, 175, 55, 0.4);
  --border: rgba(212, 175, 55, 0.14);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --text: #fcf8f2;
  --text-muted: #bdaaa0;
  --text-dim: #7a665e;
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --nav-h: 74px;
  --container-max: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img, picture, video, canvas, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Atmosphere Background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 50% at 85% 10%, rgba(107, 12, 12, 0.28) 0%, transparent 60%),
    radial-gradient(ellipse 65% 45% at 15% 45%, rgba(52, 5, 5, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 70% 60% at 50% 90%, rgba(107, 12, 12, 0.22) 0%, transparent 65%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* i18n */
[data-en] { display: none !important; }
body.lang-en [data-vi] { display: none !important; }
body.lang-en [data-en] { display: inline !important; }
body.lang-en div[data-en],
body.lang-en p[data-en],
body.lang-en section[data-en] { display: block !important; }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(14, 2, 2, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-avatar-mini {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  object-fit: cover;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background: var(--gold);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  transition: var(--transition);
}

.lang-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--cherry) 0%, var(--cherry-accent) 100%);
  color: var(--text);
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 12px 26px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px var(--cherry-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(107, 12, 12, 0.6);
  border-color: var(--gold);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px 26px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(212, 175, 55, 0.08);
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

/* Section Common Layout */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

.sec-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 50%, transparent 100%);
  margin: 0 auto;
  max-width: var(--container-max);
}

.sec-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px auto;
}

.sec-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-bottom: 12px;
}

.sec-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 16px;
}

.sec-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.8;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding-top: calc(var(--nav-h) + 50px);
  padding-bottom: 80px;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 52px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 18px;
}

.hero-title span.accent {
  background: linear-gradient(120deg, #fcf8f2 30%, var(--gold) 85%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-style: italic;
  font-size: 2.6rem;
  display: block;
  margin-top: 4px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.85;
  font-weight: 300;
  margin-bottom: 32px;
  max-width: 580px;
}

/* Stats Counter Row */
.stats-outer-wrap {
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 22px;
  background: var(--surface-translucent);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  flex: 1 1 0;
  min-width: 80px;
}

.stat-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-lbl {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  font-weight: 600;
}

.stat-sep {
  width: 1px;
  height: 36px;
  background: var(--border-subtle);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.socials-container-outer {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.social-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
}

.social-link:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(212, 175, 55, 0.08);
  transform: translateY(-2px);
}

/* ==========================================================================
   EDITORIAL ID-CARD
   ========================================================================== */
.editorial-id-card {
  background: linear-gradient(160deg, rgba(38, 7, 7, 0.75) 0%, rgba(18, 3, 3, 0.9) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  position: relative;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 35px var(--cherry-glow);
  backdrop-filter: blur(16px);
}

.editorial-id-card::before {
  content: 'FASHION ID';
  position: absolute;
  top: 18px;
  right: 24px;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--gold-muted);
  font-weight: 700;
}

.id-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.id-avatar-frame {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  padding: 3px;
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.3);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.id-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.id-name {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.id-handle {
  font-size: 0.88rem;
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.id-rows {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.id-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.id-ico {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: rgba(212, 175, 55, 0.08);
  border: 1px solid var(--border);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.id-lbl {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
}

.id-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.id-tag {
  font-size: 0.72rem;
  background: rgba(52, 5, 5, 0.7);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
}

/* ==========================================================================
   MANIFESTO / CREATIVE VISION
   ========================================================================== */
.vision-box {
  background: linear-gradient(135deg, rgba(52, 5, 5, 0.35) 0%, rgba(18, 3, 3, 0.75) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 44px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.vision-quote {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  line-height: 1.45;
  color: var(--text);
  font-style: italic;
  margin-bottom: 24px;
  position: relative;
  z-index: 2;
}

.vision-body {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.85;
  font-weight: 300;
  max-width: 900px;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   EXPERIENCE / TIMELINE
   ========================================================================== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
}

.timeline-card {
  background: var(--surface-translucent);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px 30px;
  transition: var(--transition);
  position: relative;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  backdrop-filter: blur(10px);
}

.timeline-card:hover {
  background: var(--surface-hover);
  border-color: var(--border);
  transform: translateX(4px);
}

.timeline-period {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.timeline-role {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.timeline-company {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 10px;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   PROJECTS: ASYMMETRIC STAGGERED GRID
   ========================================================================== */
.project-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--cherry);
  border-color: var(--gold);
  color: var(--text);
  box-shadow: 0 4px 15px var(--cherry-glow);
}

.staggered-projects-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
  align-items: start;
}

.staggered-col {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.staggered-col:nth-child(2) {
  margin-top: 65px;
}

.proj-card {
  background: var(--surface-translucent);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0.75;
  cursor: pointer;
}

.proj-card:hover {
  opacity: 1;
  background: var(--surface-hover);
  border-color: var(--border);
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.75), 0 0 30px var(--cherry-glow);
}

.proj-thumb-frame {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
  background: #080101;
}

.proj-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
}

.proj-card:hover .proj-thumb {
  transform: scale(1.05);
}

.proj-reveal-badge {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: rgba(14, 2, 2, 0.85);
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.proj-card:hover .proj-reveal-badge {
  background: var(--cherry);
  color: #ffffff;
}

.proj-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.proj-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.proj-category {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}

.proj-year {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.proj-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 8px;
}

.proj-artist {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 12px;
}

.proj-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
  font-weight: 300;
  margin-bottom: 14px;
}

.proj-card.text-only {
  background: linear-gradient(145deg, rgba(52, 5, 5, 0.5) 0%, rgba(18, 2, 2, 0.85) 100%);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  padding: 30px 26px;
}

.text-only-quote-mark {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 1;
  color: rgba(212, 175, 55, 0.15);
  margin-bottom: -14px;
}

/* ==========================================================================
   MASTER DOSSIER SHOWCASE (FULL ẢNH ALBUM)
   ========================================================================== */
.master-dossier-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 1, 1, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.master-dossier-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.master-dossier-container {
  max-width: 1040px;
  width: 100%;
  max-height: 90vh;
  background: linear-gradient(160deg, rgba(32, 5, 5, 0.96) 0%, rgba(14, 2, 2, 0.98) 100%);
  border: 1px solid var(--gold);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.9), 0 0 50px var(--cherry-glow);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.dossier-header {
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dossier-index {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}

.dossier-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dossier-nav-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.dossier-nav-btn:hover {
  background: var(--cherry);
  border-color: var(--gold);
  color: var(--gold);
}

.dossier-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.4rem;
  cursor: pointer;
  margin-left: 10px;
  transition: var(--transition);
}

.dossier-close:hover {
  color: var(--gold);
}

.dossier-body {
  padding: 30px 36px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: start;
}

.dossier-visual-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dossier-image-frame {
  width: 100%;
  max-height: 52vh;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background: #080101;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dossier-img {
  width: 100%;
  height: 100%;
  max-height: 52vh;
  object-fit: contain;
  display: block;
}

/* Album Strip Duyệt Toàn Bộ Ảnh */
.dossier-album-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 2px;
  scrollbar-width: thin;
}

.dossier-album-thumb {
  width: 68px;
  height: 52px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  cursor: pointer;
  flex-shrink: 0;
  opacity: 0.6;
  transition: var(--transition);
}

.dossier-album-thumb.active,
.dossier-album-thumb:hover {
  opacity: 1;
  border-color: var(--gold);
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--gold-glow);
}

.dossier-album-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.dossier-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dossier-badge {
  align-self: flex-start;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(52, 5, 5, 0.6);
  font-weight: 700;
}

.dossier-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}

.dossier-creator {
  font-size: 0.95rem;
  color: var(--gold);
  font-weight: 600;
}

.dossier-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
  font-weight: 300;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  background: var(--surface-translucent);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 52px 44px;
  backdrop-filter: blur(16px);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-ico {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(52, 5, 5, 0.8);
  border: 1px solid var(--border);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-lbl {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 700;
  margin-bottom: 3px;
  display: block;
}

.contact-val {
  font-size: 1.05rem;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  word-break: break-all;
}

.contact-val:hover {
  color: var(--gold);
}

.contact-val-block {
  display: flex;
  flex-direction: column;
}

.contact-val-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.copy-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  flex-shrink: 0;
}

.copy-btn:hover {
  background: var(--cherry);
  border-color: var(--gold);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--cherry-glow);
}

.copy-btn.copied {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #10b981;
  transform: scale(1.08);
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.form-input,
.form-textarea {
  width: 100%;
  background: rgba(12, 2, 2, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 16px var(--gold-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border);
  padding: 44px 0;
  position: relative;
  z-index: 2;
  background: #080101;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-admin-trigger {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.footer-admin-trigger:hover {
  color: var(--gold);
  background: rgba(255, 255, 255, 0.04);
}

/* ==========================================================================
   RESPONSIVE (TỐI ƯU TOÀN DIỆN CHO MỌI THIẾT BỊ MOBILE & TABLET)
   ========================================================================== */

/* 1. Tablets & Laptops nhỏ (<= 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 38px 28px;
  }
  .dossier-body {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }
}

/* 2. Tablets & Smartphones phổ biến (<= 768px) */
@media (max-width: 768px) {
  :root {
    --nav-h: 64px;
  }

  .container {
    padding: 0 18px;
  }

  .navbar {
    height: var(--nav-h);
  }

  .nav-links {
    display: none;
  }

  .brand-logo {
    gap: 9px;
  }

  .brand-name {
    font-size: 1.15rem;
    letter-spacing: 0.1em;
  }

  .brand-avatar-mini {
    width: 32px;
    height: 32px;
  }

  .nav-actions {
    gap: 8px;
  }

  .nav-actions .btn-primary {
    padding: 6px 14px !important;
    font-size: 0.72rem !important;
  }

  .lang-btn {
    padding: 5px 10px;
    font-size: 0.74rem;
  }

  /* Hero Section */
  .section {
    padding: 60px 0;
  }

  .hero {
    padding-top: calc(var(--nav-h) + 24px);
    padding-bottom: 40px;
    min-height: auto;
  }

  .hero-title {
    font-size: clamp(2.2rem, 8.5vw, 3rem);
    line-height: 1.15;
    margin-bottom: 14px;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  .hero-title span.accent {
    font-size: clamp(1.4rem, 5.5vw, 2rem);
    line-height: 1.25;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 22px;
  }

  /* Hero Stats: Grid co giãn 100% không bị tràn */
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 12px 8px;
    width: 100%;
    box-sizing: border-box;
  }

  .stat-item {
    min-width: 0 !important;
    text-align: center;
    align-items: center;
    padding: 0 2px;
  }

  .stat-num {
    font-size: clamp(1.3rem, 5vw, 1.65rem);
  }

  .stat-lbl {
    font-size: clamp(0.58rem, 2.2vw, 0.68rem);
    letter-spacing: 0.02em;
    line-height: 1.25;
  }

  .stat-sep {
    display: none;
  }

  /* ID Card */
  .editorial-id-card {
    padding: 24px 18px;
  }

  .id-header {
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 16px;
  }

  .id-avatar-frame {
    width: 72px;
    height: 72px;
  }

  .id-name {
    font-size: 1.4rem;
  }

  .id-handle {
    font-size: 0.82rem;
  }

  /* Section Header */
  .sec-header {
    margin-bottom: 36px;
  }

  .sec-title {
    font-size: clamp(1.8rem, 7vw, 2.3rem);
  }

  .sec-desc {
    font-size: 0.92rem;
    line-height: 1.65;
  }

  /* Vision Manifesto */
  .vision-box {
    padding: 28px 18px;
  }

  .vision-quote {
    font-size: 1.35rem;
    line-height: 1.45;
    margin-bottom: 16px;
  }

  .vision-body {
    font-size: 0.92rem;
    line-height: 1.7;
  }

  /* Timeline */
  .timeline {
    gap: 14px;
  }

  .timeline-card {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 18px 16px;
  }

  .timeline-period {
    font-size: 0.98rem;
  }

  .timeline-role {
    font-size: 1.22rem;
  }

  .timeline-desc {
    font-size: 0.88rem;
    line-height: 1.6;
  }

  /* Projects Filter cuộn ngang mượt */
  .project-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    justify-content: flex-start;
    scrollbar-width: none;
  }

  .project-filters::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 7px 14px;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
  }

  /* Projects Grid So Le */
  .staggered-projects-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
    width: 100%;
  }

  .staggered-col {
    gap: 20px;
    width: 100%;
  }

  .staggered-col:nth-child(2) {
    margin-top: 0;
  }

  .proj-content {
    padding: 18px 16px;
  }

  .proj-title {
    font-size: 1.35rem;
  }

  .proj-desc {
    font-size: 0.88rem;
    line-height: 1.6;
  }

  /* Contact Section */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 16px;
    width: 100%;
    box-sizing: border-box;
  }

  .contact-info {
    gap: 18px;
  }

  .contact-ico {
    width: 38px;
    height: 38px;
    font-size: 0.95rem;
  }

  .contact-form {
    padding: 0;
    background: none;
    border: none;
  }

  .footer {
    padding: 30px 0;
  }

  .footer-inner {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

  /* Master Dossier */
  .master-dossier-overlay {
    padding: 10px;
  }

  .master-dossier-container {
    max-height: 94vh;
    border-radius: var(--radius-md);
  }

  .dossier-header {
    padding: 12px 14px;
  }

  .dossier-index {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
  }

  .dossier-nav-btn {
    width: 30px;
    height: 30px;
    font-size: 0.8rem;
  }

  .dossier-body {
    padding: 14px 12px;
    gap: 14px;
  }

  .dossier-image-frame {
    max-height: 36vh;
  }

  .dossier-img {
    max-height: 36vh;
  }

  .dossier-album-thumb {
    width: 56px;
    height: 42px;
  }

  .dossier-title {
    font-size: 1.45rem;
  }

  .dossier-desc {
    font-size: 0.9rem;
    line-height: 1.65;
  }
}

/* 3. Màn hình điện thoại nhỏ (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  .brand-name {
    font-size: 0.98rem;
    letter-spacing: 0.06em;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    width: 100%;
    justify-content: center;
    padding: 11px 16px;
    font-size: 0.78rem;
  }

  .editorial-id-card {
    padding: 20px 14px;
  }

  .id-avatar-frame {
    width: 60px;
    height: 60px;
  }

  .id-name {
    font-size: 1.25rem;
  }
}

/* 4. Màn hình cực nhỏ (<= 380px - iPhone SE, Galaxy Mini) */
@media (max-width: 380px) {
  .brand-logo {
    gap: 6px;
  }

  .brand-name {
    font-size: 0.88rem;
    letter-spacing: 0.04em;
  }

  .nav-actions {
    gap: 5px;
  }

  .nav-actions .btn-primary {
    padding: 5px 8px !important;
    font-size: 0.68rem !important;
  }

  .lang-btn {
    padding: 4px 7px;
    font-size: 0.68rem;
  }

  .hero-stats {
    padding: 10px 5px;
    gap: 4px;
  }

  .stat-num {
    font-size: 1.25rem;
  }

  .stat-lbl {
    font-size: 0.55rem;
  }
}