/* ============================================
   SHOP TÁO — DESIGN SYSTEM
   Bám sát Mục 07 Kế hoạch Website
   Dark + Champagne Gold · Mobile-first
   ============================================ */

:root {
  /* === BẢNG MÀU === */
  --bg-dark: #0A0A0C;
  --bg-dark-2: #15151A;
  --bg-dark-3: #1F1F26;
  --gold: #C9A86A;
  --gold-deep: #A37D45;
  --gold-soft: #E8D7B0;
  --bg-light: #F7F5F0;
  --bg-cream: #FBF9F4;
  --green-action: #2E7D32;
  --red-urgent: #B23B2E;
  --text-dark: #1A1A1F;
  --text-mid: #5A5A66;
  --text-light: #B8B8C2;
  --border-soft: rgba(201, 168, 106, 0.18);
  --border-mid: rgba(201, 168, 106, 0.35);

  /* === TYPOGRAPHY === */
  --font-main: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* === SPACING === */
  --container: 1200px;
  --container-narrow: 960px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-gold: 0 10px 30px rgba(201, 168, 106, 0.18);
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-dark);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* LAYOUT */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.container-narrow { width: 100%; max-width: var(--container-narrow); margin: 0 auto; padding: 0 20px; }
.section { padding: 70px 0; }
.section-tight { padding: 50px 0; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-cream { background: var(--bg-cream); }
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .section-tight { padding: 36px 0; }
}

/* TYPOGRAPHY */
.eyebrow {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px;
  display: inline-block;
}
.section-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800; line-height: 1.2;
  letter-spacing: -0.02em; margin-bottom: 14px;
}
.section-title .accent { color: var(--gold-deep); }
.section-dark .section-title .accent { color: var(--gold); }
.section-sub {
  font-size: 16px; color: var(--text-mid);
  max-width: 640px; margin: 0 auto 36px;
  text-align: center;
}
.section-dark .section-sub { color: var(--text-light); }
.text-center { text-align: center; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 26px;
  font-size: 15px; font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all 0.25s ease;
  text-align: center; line-height: 1.2;
  white-space: nowrap; border: 2px solid transparent;
}
.btn-primary {
  background: var(--gold); color: var(--bg-dark);
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover { background: var(--gold-deep); color: #fff; transform: translateY(-2px); }
.btn-secondary {
  background: transparent; color: var(--gold);
  border-color: var(--gold);
}
.btn-secondary:hover { background: var(--gold); color: var(--bg-dark); }
.section-dark .btn-secondary { color: var(--gold-soft); border-color: var(--gold-soft); }
.btn-urgent { background: var(--red-urgent); color: #fff; }
.btn-urgent:hover { background: #8E2E23; transform: translateY(-2px); }
.btn-full { width: 100%; }
.btn-lg { padding: 18px 32px; font-size: 16px; }

/* HEADER */
.site-header {
  position: sticky;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: #0A0A0C;
  border-bottom: 1px solid rgba(201, 168, 106, 0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  padding: 16px 0;
  gap: 20px;
  box-sizing: border-box;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-mark {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--bg-dark-2);
  color: var(--bg-dark);
  font-weight: 800; font-size: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  line-height: 1;
  overflow: hidden;
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 1px rgba(201,168,106,0.25), 0 4px 14px rgba(201,168,106,0.18);
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 12%;
  display: block;
  border-radius: 50%;
  background: #fff;
}
.footer-brand .brand-mark { width: 52px; height: 52px; }
.brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  margin: 0;
  padding: 4px 0 2px;
  overflow: visible;
}
.brand-name {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
  line-height: 1.45;
  white-space: nowrap;
  margin: 0;
  padding: 0;
  color: #fff;
  display: block;
  overflow: visible;
}
.brand-tag {
  font-size: 10.5px;
  color: var(--gold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1.35;
  white-space: nowrap;
  margin: 0;
  padding: 0;
  font-weight: 600;
  display: block;
  overflow: visible;
}
.nav-main {
  display: flex;
  gap: 28px;
  align-items: center;
  margin: 0; padding: 0;
}
.nav-main a {
  color: #E6E6EE;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s;
  line-height: 1.4;
  padding: 6px 0;
  white-space: nowrap;
  text-decoration: none;
}
.nav-main a:hover, .nav-main a.active { color: var(--gold); }
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 16px;
  border: 1px solid var(--border-mid);
  border-radius: 999px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
}
.header-phone:hover { background: rgba(201,168,106,0.08); }
.header-cta .btn { line-height: 1.2; }
.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  color: #fff;
  font-size: 24px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  flex-shrink: 0;
}
@media (max-width: 960px) {
  .nav-main, .header-phone { display: none; }
  .menu-toggle { display: flex; }
  .header-inner { min-height: 84px; padding: 14px 0; gap: 12px; }
  .brand-name { font-size: 14px; letter-spacing: 0.01em; }
  .brand-tag { font-size: 9.5px; letter-spacing: 0.13em; }
  .brand-mark { width: 44px; height: 44px; font-size: 18px; }
}
.mobile-menu {
  position: fixed;
  top: 84px;
  left: 0; right: 0;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-soft);
  padding: 20px;
  z-index: 99;
  max-height: calc(100vh - 84px);
  overflow-y: auto;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.mobile-menu.open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0s;
}
@media (min-width: 961px) {
  .mobile-menu { display: none; }
}
.mobile-menu a {
  display: block; padding: 14px 0;
  color: #E6E6EE; font-weight: 600;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu a:last-child { border-bottom: none; }

/* HERO */
.hero {
  background: linear-gradient(180deg, #0A0A0C 0%, #15151A 100%);
  color: #fff; padding: 70px 0 80px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute;
  top: -50%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,168,106,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }

/* Hero 2-column grid */
.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}
.hero-text { min-width: 0; }

/* Portrait */
.hero-portrait {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  min-height: 540px;
}
.portrait-img-wrap {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  flex: 1;
}
.portrait-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 55%, rgba(201,168,106,0.22), transparent 70%),
    radial-gradient(ellipse 80% 70% at 50% 60%, rgba(201,168,106,0.08), transparent 80%);
  pointer-events: none;
  z-index: 0;
}
.portrait-img-wrap::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 75%;
  height: 12px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(0,0,0,0.5), transparent 70%);
  filter: blur(8px);
  z-index: 0;
}
.portrait-img-wrap img {
  position: relative;
  z-index: 1;
  max-width: 100%;
  max-height: 520px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.45));
}
.portrait-badge {
  position: absolute;
  top: 0;
  right: -15px;
  z-index: 2;
  width: 165px;
  height: 165px;
  display: grid;
  place-items: center;
  background: transparent;
  padding: 0;
  filter: drop-shadow(0 6px 16px rgba(201,168,106,0.4));
}
.badge-tech,
.badge-laurel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.badge-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--gold);
  margin-top: 14px;
  margin-left: 6px;
}
.badge-content strong {
  font-size: 36px;
  font-weight: 900;
  line-height: 1;
  display: block;
  background: linear-gradient(180deg, #F5E4B8 0%, #C9A86A 60%, #A37D45 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
  filter: drop-shadow(0 1px 0 rgba(0,0,0,0.4));
}
.badge-content strong sup {
  font-size: 0.55em;
  vertical-align: 0.5em;
  margin-left: 1px;
}
.badge-content span {
  font-size: 8.5px;
  font-weight: 800;
  letter-spacing: 0.22em;
  line-height: 1.3;
  color: var(--gold);
  display: block;
  margin-top: 3px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}

/* Social links dưới portrait */
.portrait-socials {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 18px;
  align-items: stretch;
  width: 100%;
  max-width: 280px;
  margin-left: auto;
  margin-right: auto;
}
.social-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(201,168,106,0.06);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  color: var(--text-light);
  font-size: 13px;
  text-decoration: none;
  transition: all 0.2s ease;
}
.social-link:hover {
  background: rgba(201,168,106,0.14);
  border-color: var(--gold);
  color: #fff;
  transform: translateX(2px);
}
.social-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: #fff;
}
.social-icon.yt { background: #FF0000; }
.social-icon.fb { background: #1877F2; }
.social-icon.tt {
  background: #000;
  border: 1px solid rgba(255,255,255,0.15);
}
.social-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex: 1;
  min-width: 0;
}
.social-platform {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
}
.social-handle {
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Name caption dưới portrait */
.portrait-name {
  text-align: center;
  margin-top: 16px;
  padding: 14px 24px;
  position: relative;
}
.portrait-name::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.portrait-name h3 {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.04em;
  margin: 0;
  line-height: 1.2;
}
.portrait-name p {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  margin: 6px 0 0;
  line-height: 1.3;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .hero-portrait {
    order: -1;
    min-height: auto;
  }
  .portrait-img-wrap img { max-height: 360px; }
  .portrait-badge {
    top: -8px;
    right: -8px;
    width: 120px;
    height: 120px;
  }
  .badge-content { margin-top: 10px; margin-left: 4px; }
  .badge-content strong { font-size: 26px; }
  .badge-content span { font-size: 7px; letter-spacing: 0.18em; }
  .portrait-name h3 { font-size: 19px; }
  .portrait-name p { font-size: 11px; }
}
@media (max-width: 540px) {
  .portrait-img-wrap img { max-height: 280px; }
  .portrait-name { margin-top: 10px; padding: 10px 20px; }
  .portrait-name h3 { font-size: 17px; }
}
.hero-title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.025em; margin-bottom: 22px;
  max-width: 880px;
}
.hero-title .gold { color: var(--gold); }
.hero-title .underline { border-bottom: 3px solid var(--gold); padding-bottom: 2px; }
.hero-pitch {
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--text-light);
  max-width: 780px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-pitch p {
  margin: 0 0 14px;
}
.hero-pitch p:last-child {
  margin-bottom: 0;
}
.hero-pitch strong { color: #fff; font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }
.hero-trust {
  display: flex; flex-wrap: wrap; gap: 32px;
  padding-top: 30px; border-top: 1px solid var(--border-soft);
}
.trust-item .num {
  font-size: 28px; font-weight: 800;
  color: var(--gold); line-height: 1;
}
.trust-item .lbl {
  font-size: 12px; color: var(--text-light);
  margin-top: 4px; letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* KHỐI 2 - Situation */
.situation-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.situation-card {
  background: #fff; border: 1px solid var(--border-soft);
  border-radius: var(--radius-md); padding: 28px 24px;
  transition: all 0.25s;
  display: flex; flex-direction: column; gap: 14px;
}
.situation-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}
.situation-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fff;
  display: grid; place-items: center; font-size: 22px;
}
.situation-icon.urgent { background: linear-gradient(135deg, #D44A3C, #8E2E23); }
.situation-card h3 { font-size: 19px; font-weight: 700; }
.situation-card p { color: var(--text-mid); font-size: 14.5px; flex: 1; }
.situation-link {
  color: var(--gold-deep); font-weight: 700; font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
}
.situation-link:hover { color: var(--bg-dark); }
@media (max-width: 768px) {
  .situation-grid { grid-template-columns: 1fr; gap: 14px; }
}

/* KHỐI 3 - Consequence */
.consequence-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.consequence-card {
  background: var(--bg-dark-2); border: 1px solid var(--border-soft);
  border-left: 3px solid var(--red-urgent);
  padding: 22px; border-radius: var(--radius-sm);
}
.consequence-card .icon {
  width: 38px; height: 38px;
  background: rgba(178,59,46,0.15); color: #FF8B7A;
  border-radius: 8px;
  display: grid; place-items: center;
  margin-bottom: 12px; font-size: 18px;
}
.consequence-card h4 { font-size: 15px; margin-bottom: 6px; color: #fff; }
.consequence-card p { font-size: 13.5px; color: var(--text-light); }
@media (max-width: 768px) { .consequence-grid { grid-template-columns: 1fr 1fr; gap: 12px; } }
@media (max-width: 460px) { .consequence-grid { grid-template-columns: 1fr; } }

/* KHỐI 4 - Desire */
.desire-block { text-align: center; max-width: 760px; margin: 0 auto; padding: 30px 20px; }
.desire-quote {
  font-size: clamp(20px, 3.2vw, 30px);
  font-weight: 700; line-height: 1.4;
  color: var(--text-dark); letter-spacing: -0.01em;
}
.desire-quote .accent { color: var(--gold-deep); font-style: italic; }
.desire-block p { margin-top: 18px; font-size: 16px; color: var(--text-mid); }

/* KHỐI 5 - Cause */
.cause-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.cause-card {
  background: #fff; padding: 24px;
  border-radius: var(--radius-md); border: 1px solid var(--border-soft);
  display: flex; gap: 16px;
}
.cause-num {
  flex-shrink: 0; width: 36px; height: 36px;
  background: var(--bg-dark); color: var(--gold);
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 800; font-size: 14px;
}
.cause-card h4 { font-size: 16px; margin-bottom: 6px; }
.cause-card p { color: var(--text-mid); font-size: 14px; }
@media (max-width: 768px) { .cause-grid { grid-template-columns: 1fr; } }

/* KHỐI 6 - Compare */
.compare-wrap { max-width: 880px; margin: 0 auto; }
.compare-table {
  background: #fff; border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-md);
}
.compare-row {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  border-top: 1px solid #ECE7DA;
}
.compare-row:first-child { border-top: none; }
.compare-row > div { padding: 16px 18px; font-size: 14.5px; }
.compare-head {
  background: var(--bg-dark); color: #fff;
  font-weight: 700; font-size: 13px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.compare-head .col-good { color: var(--gold); }
.compare-head .col-bad { color: #FF8B7A; }
.compare-row .col-bad { color: #B23B2E; }
.compare-row .col-good { color: #1B5E20; font-weight: 600; }
.compare-row.total {
  background: var(--bg-cream);
  font-weight: 800; font-size: 16px;
}
@media (max-width: 640px) {
  .compare-row { grid-template-columns: 1.2fr 1fr 1fr; }
  .compare-row > div { padding: 12px 10px; font-size: 13px; }
}

/* KHỐI 7 - Quote */
.man-quote {
  background: linear-gradient(135deg, #0A0A0C 0%, #1F1F26 100%);
  color: #fff; position: relative; padding: 70px 0;
}
.man-quote::before {
  content: '"';
  position: absolute; top: 10px; left: 50%;
  transform: translateX(-50%);
  font-size: 200px; color: var(--gold);
  opacity: 0.15; font-family: Georgia, serif;
  line-height: 1;
}
.man-quote-inner {
  max-width: 820px; margin: 0 auto;
  text-align: center; position: relative; z-index: 1;
  padding: 0 20px;
}
.man-quote-text {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600; line-height: 1.5;
  font-style: italic; margin-bottom: 24px;
}
.man-quote-text .gold { color: var(--gold); font-style: normal; font-weight: 800; }
.man-quote-author { display: inline-flex; align-items: center; gap: 14px; margin-top: 16px; }
.man-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: var(--bg-dark); font-weight: 800; font-size: 22px;
  display: grid; place-items: center;
}
.man-quote-author .info { text-align: left; }
.man-quote-author .name { font-weight: 700; font-size: 16px; }
.man-quote-author .role { font-size: 13px; color: var(--gold); }

/* KHỐI 8 - Process */
.process-steps {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 14px; position: relative;
}
.process-step {
  text-align: center; padding: 20px 14px;
  background: #fff; border-radius: var(--radius-md);
  border: 1px solid var(--border-soft); position: relative;
}
.process-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-dark); color: var(--gold);
  font-weight: 800;
  display: grid; place-items: center;
  margin: 0 auto 12px; font-size: 15px;
}
.process-step h5 { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.process-step p { font-size: 12.5px; color: var(--text-mid); line-height: 1.45; }
@media (max-width: 960px) { .process-steps { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 540px) { .process-steps { grid-template-columns: 1fr 1fr; } }

/* KHỐI 9 - Feature */
.feature-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 28px; flex-wrap: wrap; }
.feature-tab {
  padding: 10px 22px; border-radius: 999px;
  font-weight: 600; font-size: 14px;
  color: var(--text-mid); background: #fff;
  border: 1px solid var(--border-soft);
  transition: all 0.2s;
}
.feature-tab.active, .feature-tab:hover {
  background: var(--bg-dark); color: var(--gold);
  border-color: var(--bg-dark);
}
.feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature-card {
  background: #fff; border-radius: var(--radius-md);
  overflow: hidden; border: 1px solid var(--border-soft);
  transition: all 0.25s;
  display: flex; flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--gold);
}
.feature-img {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #F4EFE2 0%, #E8DDC4 100%);
  display: grid; place-items: center;
  font-size: 56px; color: var(--gold-deep);
}
.feature-body { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.feature-tag {
  font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep); font-weight: 700;
  margin-bottom: 6px;
}
.feature-card h4 { font-size: 16px; margin-bottom: 8px; line-height: 1.3; }
.feature-card .benefit { font-size: 13.5px; color: var(--text-mid); margin-bottom: 14px; flex: 1; }
.feature-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 12px; border-top: 1px solid var(--border-soft);
}
.feature-price { font-weight: 800; color: var(--bg-dark); font-size: 15px; }
.feature-price.from::before { content: 'Từ '; font-weight: 500; color: var(--text-mid); font-size: 12px; }
.feature-link { color: var(--gold-deep); font-weight: 700; font-size: 13px; }
@media (max-width: 960px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .feature-grid { grid-template-columns: 1fr; } }

/* KHỐI 10 - Day */
.day-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: 50px; align-items: center;
}
.day-visual {
  aspect-ratio: 4/3; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #2A241B, #1A1611);
  position: relative; overflow: hidden;
  display: grid; place-items: center;
  color: var(--gold); font-size: 120px;
}
.day-visual::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(201,168,106,0.25), transparent 60%);
}
.day-list { display: flex; flex-direction: column; gap: 18px; }
.day-item { display: flex; gap: 16px; align-items: flex-start; }
.day-time {
  flex-shrink: 0; padding: 6px 12px;
  background: var(--gold-soft); color: var(--bg-dark);
  font-weight: 700; font-size: 13px;
  border-radius: 6px;
  min-width: 78px; text-align: center;
}
.day-text h5 { font-size: 16px; margin-bottom: 4px; }
.day-text p { font-size: 14px; color: var(--text-mid); line-height: 1.55; }
@media (max-width: 880px) { .day-grid { grid-template-columns: 1fr; gap: 30px; } }

/* KHỐI 11 - Story */
.story { background: var(--bg-dark); color: #fff; padding: 70px 0; }
.story-grid {
  display: grid; grid-template-columns: 1fr 1.3fr;
  gap: 60px; align-items: center;
}
.story-visual { position: relative; }
.story-photo {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, var(--gold-deep), #5A3F1D);
  border-radius: var(--radius-lg);
  display: grid; place-items: center;
  color: var(--bg-dark); font-size: 140px; font-weight: 900;
}
.story-milestone {
  position: absolute; bottom: -24px; right: -16px;
  background: var(--gold); color: var(--bg-dark);
  padding: 14px 22px; border-radius: var(--radius-md);
  font-weight: 800; box-shadow: var(--shadow-gold);
}
.story-milestone .big { font-size: 26px; line-height: 1; }
.story-milestone .small { font-size: 12px; }
.story-eyebrow { color: var(--gold); }
.story h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; margin-bottom: 18px; line-height: 1.2; }
.story p { color: var(--text-light); margin-bottom: 16px; font-size: 15.5px; line-height: 1.7; }
.story-values {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; margin-top: 24px;
}
.story-value {
  padding: 14px 16px; background: var(--bg-dark-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
}
.story-value strong { color: var(--gold); display: block; font-size: 14px; margin-bottom: 2px; }
.story-value span { font-size: 13px; color: var(--text-light); }
@media (max-width: 880px) {
  .story-grid { grid-template-columns: 1fr; gap: 40px; }
  .story-photo { aspect-ratio: 4/3; }
}

/* KHỐI 12 - Proof */
.proof-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-bottom: 36px;
}
.proof-stat {
  text-align: center; padding: 24px 16px;
  background: #fff; border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
}
.proof-stat .num {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800; color: var(--gold-deep); line-height: 1;
}
.proof-stat .lbl { font-size: 13px; color: var(--text-mid); margin-top: 6px; }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card {
  background: #fff; padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
}
.review-stars { color: #F5A623; font-size: 14px; letter-spacing: 1px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--text-dark); line-height: 1.6; margin-bottom: 14px; min-height: 80px; }
.review-author { display: flex; align-items: center; gap: 10px; padding-top: 12px; border-top: 1px solid var(--border-soft); }
.review-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--gold-soft); color: var(--gold-deep);
  font-weight: 700;
  display: grid; place-items: center; font-size: 14px;
}
.review-name { font-weight: 700; font-size: 13.5px; }
.review-meta { font-size: 12px; color: var(--text-mid); }
@media (max-width: 880px) {
  .proof-stats { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* KHỐI 13 - Commits */
.commit-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.commit-card {
  background: #fff; padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  border-top: 3px solid var(--gold);
  display: flex; gap: 14px;
  transition: all 0.25s;
}
.commit-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.commit-icon {
  flex-shrink: 0; width: 42px; height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fff;
  display: grid; place-items: center; font-size: 18px;
}
.commit-text h5 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.commit-text p { font-size: 13.5px; color: var(--text-mid); line-height: 1.5; }
@media (max-width: 880px) { .commit-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .commit-grid { grid-template-columns: 1fr; } }

/* KHỐI 14 - Offer */
.offer-banner {
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: var(--bg-dark); padding: 36px 30px;
  border-radius: var(--radius-lg);
  display: grid; grid-template-columns: 1fr auto;
  gap: 30px; align-items: center;
  position: relative; overflow: hidden;
}
.offer-banner::before {
  content: '★'; position: absolute;
  top: -30px; right: -10px;
  font-size: 200px; color: rgba(255,255,255,0.1);
  line-height: 1;
}
.offer-tag {
  display: inline-block;
  background: var(--bg-dark); color: var(--gold);
  padding: 4px 12px; border-radius: 999px;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 10px;
}
.offer-banner h3 { font-size: clamp(20px, 3vw, 26px); font-weight: 800; margin-bottom: 8px; }
.offer-banner p { font-size: 15px; opacity: 0.85; }
.offer-counter {
  background: var(--bg-dark); color: #fff;
  padding: 16px 22px; border-radius: var(--radius-md);
  text-align: center; min-width: 180px;
}
.offer-counter .num { font-size: 32px; font-weight: 800; color: var(--gold); line-height: 1; }
.offer-counter .lbl { font-size: 12px; opacity: 0.8; margin-top: 4px; }
@media (max-width: 720px) { .offer-banner { grid-template-columns: 1fr; text-align: center; } }

/* KHỐI 15 - CTA */
.cta-section {
  background: var(--bg-dark); color: #fff;
  padding: 70px 0; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute;
  bottom: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(201,168,106,0.18), transparent 60%);
}
.cta-grid {
  display: grid; grid-template-columns: 1fr 1.1fr;
  gap: 50px; align-items: center;
  position: relative; z-index: 1;
}
.cta-info h2 {
  font-size: clamp(26px, 3.6vw, 36px);
  font-weight: 800; margin-bottom: 16px; line-height: 1.2;
}
.cta-info h2 .gold { color: var(--gold); }
.cta-info p { color: var(--text-light); font-size: 16px; margin-bottom: 24px; line-height: 1.65; }
.cta-channels { display: flex; flex-direction: column; gap: 12px; }
.cta-channel {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: rgba(201,168,106,0.06);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}
.cta-channel:hover { background: rgba(201,168,106,0.12); border-color: var(--gold); }
.cta-channel-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--gold); color: var(--bg-dark);
  display: grid; place-items: center;
  font-size: 18px; flex-shrink: 0;
}
.cta-channel-text strong { display: block; color: #fff; font-size: 15px; }
.cta-channel-text span { font-size: 13px; color: var(--text-light); }
.form-card {
  background: #fff; color: var(--text-dark);
  border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-md);
}
.form-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.form-card .form-lead { font-size: 14px; color: var(--text-mid); margin-bottom: 22px; }
.form-row { margin-bottom: 14px; }
.form-row label {
  display: block; font-size: 13px; font-weight: 600;
  margin-bottom: 6px; color: var(--text-dark);
}
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px;
  border: 1.5px solid #E0DAC9;
  border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px;
  background: #FBF9F4;
  transition: border-color 0.2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--gold);
  background: #fff;
}
.form-row textarea { resize: vertical; min-height: 80px; }
.form-trust {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-mid);
  margin-top: 14px;
}
.form-trust .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green-action);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@media (max-width: 880px) {
  .cta-grid { grid-template-columns: 1fr; gap: 30px; }
  .form-card { padding: 24px; }
}

/* FOOTER */
.site-footer {
  background: #06060A; color: var(--text-light);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-brand { color: #fff; }
.footer-brand .brand-name { font-size: 20px; }
.footer-brand p { font-size: 14px; color: var(--text-light); margin: 14px 0 18px; line-height: 1.6; }
.footer-commits { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-commit {
  background: rgba(201,168,106,0.1);
  color: var(--gold);
  padding: 4px 10px; border-radius: 999px;
  font-size: 11px; border: 1px solid var(--border-soft);
}
.footer-col h5 {
  color: #fff; font-size: 14px;
  margin-bottom: 16px; font-weight: 700;
  letter-spacing: 0.02em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--text-light); transition: color 0.2s; }
.footer-col a:hover { color: var(--gold); }
.footer-info { font-size: 13.5px; }
.footer-info p { margin-bottom: 8px; display: flex; gap: 8px; align-items: flex-start; }
.footer-info .lbl { color: var(--gold); flex-shrink: 0; font-weight: 600; min-width: 60px; }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(201,168,106,0.12);
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 12px; font-size: 13px;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }

/* HOTLINE FLOAT */
.hotline-float {
  position: fixed;
  right: 18px; bottom: 100px;
  z-index: 90;
  display: flex; flex-direction: column; gap: 10px;
}
.hotline-btn {
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  color: #fff; font-size: 22px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  transition: transform 0.2s;
}
.hotline-btn:hover { transform: scale(1.08); }
.hotline-btn.phone {
  background: var(--red-urgent);
  animation: ring 2s ease-in-out infinite;
}
.hotline-btn.zalo { background: #0068FF; }
@keyframes ring {
  0%, 100% { box-shadow: 0 6px 20px rgba(178,59,46,0.4), 0 0 0 0 rgba(178,59,46,0.4); }
  50% { box-shadow: 0 6px 20px rgba(178,59,46,0.4), 0 0 0 12px rgba(178,59,46,0); }
}

/* STICKY BAR */
.sticky-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg-dark);
  border-top: 1px solid var(--border-soft);
  padding: 10px;
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 10px; z-index: 90;
}
.sticky-bar a {
  padding: 12px; border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 700; font-size: 14px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.sticky-bar .call { background: var(--red-urgent); color: #fff; }
.sticky-bar .zalo { background: var(--gold); color: var(--bg-dark); }
@media (max-width: 768px) {
  .sticky-bar { display: grid; }
  .hotline-float { bottom: 80px; right: 14px; }
  .hotline-btn { width: 50px; height: 50px; font-size: 20px; }
  body { padding-bottom: 70px; }
}

/* PAGE BANNER */
.page-banner {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1A1611 100%);
  color: #fff; padding: 60px 0 50px;
  position: relative; overflow: hidden;
}
.page-banner::before {
  content: ''; position: absolute;
  top: -50%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(201,168,106,0.15), transparent 60%);
}
.page-banner-inner { position: relative; z-index: 1; }
.breadcrumb { font-size: 13px; color: var(--text-light); margin-bottom: 14px; }
.breadcrumb a { color: var(--gold); }
.breadcrumb a:hover { text-decoration: underline; }
.page-banner h1 {
  font-size: clamp(28px, 4.5vw, 42px);
  font-weight: 800; line-height: 1.15;
  margin-bottom: 14px; max-width: 800px;
}
.page-banner h1 .gold { color: var(--gold); }
.page-banner-lead {
  font-size: 16px; color: var(--text-light);
  max-width: 700px; line-height: 1.65;
  margin-bottom: 22px;
}
.page-banner-meta {
  display: flex; flex-wrap: wrap; gap: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--border-soft);
  font-size: 13px;
}
.page-banner-meta .item { display: flex; align-items: center; gap: 8px; color: var(--gold); }

/* FILTER BAR */
.filter-bar {
  background: #fff; padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 12px; margin-bottom: 30px;
  align-items: end;
}
.filter-bar label {
  font-size: 12px; font-weight: 600;
  color: var(--text-mid); margin-bottom: 4px;
  display: block; text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filter-bar select {
  padding: 10px 12px;
  border: 1.5px solid #E0DAC9;
  border-radius: var(--radius-sm);
  background: #FBF9F4;
  font-family: inherit; font-size: 14px; width: 100%;
}
@media (max-width: 720px) {
  .filter-bar { grid-template-columns: 1fr 1fr; }
  .filter-bar .btn { grid-column: span 2; }
}

/* CATEGORY STRIP */
.cat-strip {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center; margin-bottom: 30px;
}
.cat-chip {
  padding: 10px 20px;
  background: #fff;
  border: 1.5px solid var(--border-soft);
  border-radius: 999px;
  font-weight: 600; font-size: 14px;
  color: var(--text-dark); transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
}
.cat-chip:hover, .cat-chip.active {
  background: var(--bg-dark); color: var(--gold);
  border-color: var(--bg-dark);
}

/* SYMPTOMS */
.symptom-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.symptom-card {
  background: #fff; padding: 22px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  border-left: 4px solid var(--red-urgent);
  text-align: left; transition: all 0.25s;
  display: flex; flex-direction: column; gap: 10px;
}
.symptom-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-left-color: var(--gold);
}
.symptom-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, #FFE4DF, #FFB3A8);
  color: var(--red-urgent);
  display: grid; place-items: center; font-size: 22px;
}
.symptom-card h4 { font-size: 15.5px; font-weight: 700; line-height: 1.3; }
.symptom-card .time { font-size: 12.5px; color: var(--gold-deep); font-weight: 700; }
.symptom-card .price { font-size: 13px; color: var(--text-mid); }
.symptom-card .arrow { color: var(--gold-deep); font-size: 13px; font-weight: 700; margin-top: auto; }
@media (max-width: 960px) { .symptom-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .symptom-grid { grid-template-columns: 1fr; } }

/* PRICE TABLE */
.price-table {
  background: #fff; border-radius: var(--radius-md);
  overflow: hidden; border: 1px solid var(--border-soft);
}
.price-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  border-top: 1px solid #ECE7DA;
  font-size: 14px;
}
.price-row:first-child { border-top: none; }
.price-row > div { padding: 14px 16px; }
.price-head {
  background: var(--bg-dark); color: #fff;
  font-weight: 700; font-size: 13px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.price-row .price-val { font-weight: 700; color: var(--gold-deep); }
.price-row .time-val { color: var(--text-mid); }
.price-row .warranty-val { color: var(--green-action); font-weight: 600; }
@media (max-width: 720px) {
  .price-row { grid-template-columns: 1.4fr 1fr 1fr; }
  .price-row .warranty-val, .price-head .col-warr { display: none; }
  .price-row > div { padding: 12px 10px; font-size: 13px; }
}

/* UTILITY */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 18px; }
.mt-4 { margin-top: 30px; }
.mb-4 { margin-bottom: 30px; }
.flex-center { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }