/* =========================================================
   Hoàng Bách Door — Design tokens
   Navy #12233F · Orange #DD6E12 · White #FFFFFF
   ========================================================= */
:root {
  --navy: #12233f;
  --navy-950: #0a1528;
  --navy-800: #182d50;
  --navy-700: #213a63;
  --navy-line: rgba(255, 255, 255, 0.12);
  --orange: #dd6e12;
  --orange-hover: #f07f22;
  --orange-ink: #b35408;      /* chữ cam trên nền trắng (5:1) */
  --orange-soft: #fdf0e4;
  --white: #ffffff;
  --bg-soft: #f3f5f9;
  --text: #12233f;
  --text-muted: #56627a;     /* 6.1:1 trên trắng */
  --text-on-dark: #c7d0de;   /* trên navy */
  --border: #e2e7ef;

  --font-head: 'Space Grotesk', 'Be Vietnam Pro', system-ui, sans-serif;
  --font-body: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(18, 35, 63, 0.06);
  --shadow: 0 12px 32px -12px rgba(18, 35, 63, 0.22);
  --shadow-lg: 0 30px 60px -24px rgba(10, 21, 40, 0.45);

  --container: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --section-y: clamp(64px, 9vw, 112px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
button { font: inherit; color: inherit; }

:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; border-radius: 6px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--orange); color: var(--navy); padding: 10px 16px; border-radius: var(--radius-sm); font-weight: 700; }
.skip-link:focus { top: 12px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.icon { width: 1.15em; height: 1.15em; flex-shrink: 0; }
.text-accent { color: var(--orange); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 22px;
  border-radius: var(--radius-pill); border: 2px solid transparent;
  font-family: var(--font-head); font-weight: 700; font-size: 1rem; letter-spacing: 0;
  cursor: pointer; white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:active { transform: translateY(1px) scale(.98); }
.btn--primary { background: var(--orange); color: var(--navy-950); box-shadow: 0 10px 24px -10px rgba(221, 110, 18, .7); }
.btn--primary:hover { background: var(--orange-hover); transform: translateY(-2px); }
.btn--navy { background: var(--navy); color: var(--white); }
.btn--navy:hover { background: var(--navy-700); transform: translateY(-2px); }
.btn--ghost { background: rgba(255,255,255,.06); color: var(--white); border-color: rgba(255,255,255,.35); }
.btn--ghost:hover { background: rgba(255,255,255,.14); border-color: var(--white); }
.btn--sm { min-height: 44px; padding: 8px 18px; font-size: .95rem; }
.btn--lg { min-height: 56px; padding: 14px 26px; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn__arrow {
  display: inline-grid; place-items: center; width: 32px; height: 32px; margin-right: -12px;
  border-radius: 50%; background: var(--navy); color: var(--orange);
  transition: transform .25s var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ===== Eyebrow / section heads ===== */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: var(--radius-pill);
  background: var(--orange-soft); color: var(--orange-ink);
  font-family: var(--font-head); font-weight: 600; font-size: .85rem; letter-spacing: .04em; text-transform: uppercase;
  margin-bottom: 18px;
}
.eyebrow--dark { background: rgba(221,110,18,.14); color: #f39a52; border: 1px solid rgba(221,110,18,.35); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(221,110,18,.25); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(221,110,18,.5);} 70% { box-shadow: 0 0 0 8px rgba(221,110,18,0);} }

.section { position: relative; padding-block: var(--section-y); }
.section--soft { background: var(--bg-soft); }
.section--navy { background: var(--navy); color: var(--white); overflow: hidden; }
.section-head { margin-bottom: clamp(36px, 5vw, 56px); }
.section-head--split { display: grid; gap: 20px; align-items: end; }
.section-head--center { text-align: center; max-width: 720px; margin-inline: auto; }
.section-title { font-size: clamp(1.85rem, 3.6vw, 2.75rem); font-weight: 700; text-wrap: balance; }
.section-lead { color: var(--text-muted); font-size: 1.05rem; max-width: 56ch; }
.section-lead strong { color: var(--text); }
.muted-note { margin-top: 16px; color: var(--text-muted); font-size: .875rem; }

@media (min-width: 900px) {
  .section-head--split { grid-template-columns: 1.2fr 1fr; gap: 48px; }
}

/* ===== Topbar ===== */
.topbar { background: var(--navy-950); color: var(--text-on-dark); font-size: .875rem; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 40px; }
.topbar__item, .topbar__links a { display: inline-flex; align-items: center; gap: 8px; }
.topbar__item .icon { color: var(--orange); }
.topbar__links { display: flex; gap: 20px; }
.topbar__links a { color: var(--white); font-weight: 600; transition: color .2s; }
.topbar__links a:hover { color: var(--orange-hover); }
@media (max-width: 640px) { .topbar__item { display: none; } .topbar__inner { justify-content: center; } }

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(18, 35, 63, .92);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--navy-line);
  transition: box-shadow .3s var(--ease);
}
.header.is-scrolled { box-shadow: 0 10px 30px -12px rgba(0,0,0,.5); }
.header__inner { display: flex; align-items: center; gap: 24px; min-height: 76px; }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--white); }
.brand__logo { width: 40px; height: auto; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand__name em { font-style: normal; color: var(--orange); }
.brand__sub { font-size: .75rem; color: var(--text-on-dark); letter-spacing: .08em; text-transform: uppercase; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 4px; padding: 6px; border-radius: var(--radius-pill); background: rgba(255,255,255,.05); border: 1px solid var(--navy-line); }
.nav__link { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: var(--radius-pill); color: var(--text-on-dark); font-weight: 500; font-size: .95rem; transition: color .2s, background-color .2s; }
.nav__link:hover, .nav__link.is-active { color: var(--white); background: rgba(255,255,255,.1); }
.nav__mobile-cta { display: none; }
.header__cta .icon { width: 1em; height: 1em; }

.nav-toggle { display: none; place-items: center; width: 48px; height: 48px; margin-left: auto; border-radius: 12px; border: 1px solid var(--navy-line); background: rgba(255,255,255,.06); color: var(--white); cursor: pointer; }
.nav-toggle .icon { width: 24px; height: 24px; }
.nav-toggle__close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }

@media (max-width: 1024px) {
  .nav-toggle { display: grid; }
  .header__cta { display: none; }
  .nav { position: absolute; inset: 100% 0 auto 0; margin: 0; }
  .nav__list {
    flex-direction: column; align-items: stretch; gap: 4px;
    margin: 0 var(--gutter); padding: 12px; border-radius: var(--radius);
    background: var(--navy-800); box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }
  .nav.is-open .nav__list { opacity: 1; visibility: visible; transform: none; }
  .nav__link { min-height: 48px; font-size: 1rem; }
  .nav__mobile-cta { display: block; margin-top: 8px; }
}

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden; color: var(--white);
  background:
    radial-gradient(900px 500px at 85% 20%, rgba(221,110,18,.20), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(33,58,99,.9), transparent 70%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-950) 100%);
  padding-block: clamp(48px, 7vw, 96px) 24px;
}
.hero__grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 60% 40%, #000 30%, transparent 75%);
}
.hero__inner { position: relative; display: grid; gap: 48px; align-items: center; }
.hero__title { font-size: clamp(2.25rem, 5.4vw, 4rem); font-weight: 700; line-height: 1.08; text-wrap: balance; }
.hero__lead { margin-top: 20px; color: var(--text-on-dark); font-size: clamp(1.02rem, 1.4vw, 1.15rem); max-width: 54ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__checks { display: grid; gap: 10px; margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--navy-line); }
.hero__checks li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-on-dark); }
.hero__checks .icon { color: var(--orange); margin-top: 3px; }
.hero__note { position: relative; margin-top: 24px; font-size: .8rem; color: #9aa7bc; }

.hero__media { position: relative; max-width: 480px; margin-inline: auto; width: 100%; padding: 24px 0; }
.hero__photo {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4 / 5; box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,.14);
}
.hero__photo img { width: 100%; height: 100%; object-fit: cover; }
.hero__photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(10,21,40,.55)); }
.hero__media::before {
  content: ""; position: absolute; z-index: -1; right: -28px; top: 0; width: 70%; height: 70%;
  border-radius: var(--radius-lg); border: 2px dashed rgba(221,110,18,.45);
}

.float-card {
  position: absolute; display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-radius: 16px;
  background: rgba(255,255,255,.97); color: var(--navy);
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}
.float-card strong { display: block; font-family: var(--font-head); font-size: 1.05rem; line-height: 1.2; }
.float-card small { display: block; font-size: .78rem; color: var(--text-muted); line-height: 1.3; }
.float-card__icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--orange); color: var(--navy-950); }
.float-card__icon--navy { background: var(--navy); color: var(--orange); }
.float-card--top { top: 40px; left: -24px; }
.float-card--mid { top: 46%; right: -20px; animation-delay: -2s; }
.float-card--bottom { bottom: 0; left: 8%; background: var(--orange); color: var(--navy-950); animation-delay: -4s; }
.float-card--bottom small { color: var(--navy); }
.float-card__big { font-family: var(--font-head); font-size: 2.6rem !important; line-height: 1 !important; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

@media (min-width: 960px) {
  .hero__inner { grid-template-columns: 1.15fr .85fr; gap: 56px; }
  .hero__media { margin-right: 0; }
}
@media (max-width: 520px) {
  .float-card--top { left: -6px; top: 32px; }
  .float-card--mid { right: -6px; }
  .float-card { padding: 10px 12px; }
  .hero__actions .btn { width: 100%; }
}

/* ===== Issues strip ===== */
.issues { background: linear-gradient(180deg, var(--navy-950) 0 50%, var(--bg-soft) 50% 100%); padding-bottom: 0; }
.issues__grid { display: grid; gap: 16px; }
.issues__photo { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 220px; }
.issues__photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.issues__photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,21,40,.1), rgba(10,21,40,.85)); }
.issues__photo-text { position: absolute; z-index: 1; left: 24px; right: 24px; bottom: 22px; color: var(--white); }
.issues__photo-text h2 { font-size: 1.5rem; }
.issues__photo-text a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; font-weight: 600; color: #f39a52; }
.issues__photo-text a:hover { color: var(--white); }
.issues__panel { display: grid; gap: 0; border-radius: var(--radius); background: var(--navy-800); color: var(--white); box-shadow: var(--shadow-lg); overflow: hidden; }
.issue { padding: 28px 26px; border-bottom: 1px solid var(--navy-line); transition: background-color .25s var(--ease); }
.issue:hover { background: var(--navy-700); }
.issue__icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--orange); color: var(--navy-950); margin-bottom: 16px; }
.issue__icon .icon { width: 22px; height: 22px; }
.issue h3 { font-size: 1.15rem; margin-bottom: 6px; }
.issue p { color: var(--text-on-dark); font-size: .95rem; }
@media (min-width: 900px) {
  .issues__grid { grid-template-columns: 1fr 2.4fr; }
  .issues__panel { grid-template-columns: repeat(3, 1fr); }
  .issue { border-bottom: 0; border-right: 1px solid var(--navy-line); }
  .issue:last-child { border-right: 0; }
}

/* ===== Services ===== */
.services { display: grid; gap: 24px; }
.service {
  display: flex; flex-direction: column; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--white); border: 1px solid var(--border);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.service:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.service__img { position: relative; aspect-ratio: 16 / 11; overflow: hidden; margin: 10px 10px 0; border-radius: calc(var(--radius-lg) - 8px); }
.service__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.service:hover .service__img img { transform: scale(1.05); }
.service__num { position: absolute; top: 14px; right: 14px; padding: 4px 12px; border-radius: var(--radius-pill); background: rgba(10,21,40,.75); color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: .85rem; backdrop-filter: blur(6px); }
.service__body { display: flex; flex-direction: column; gap: 10px; padding: 26px 26px 28px; flex: 1; }
.service__icon { display: grid; place-items: center; width: 52px; height: 52px; margin-top: -52px; position: relative; border-radius: 16px; background: var(--navy); color: var(--orange); border: 4px solid var(--white); }
.service__icon .icon { width: 24px; height: 24px; }
.service h3 { font-size: 1.35rem; }
.service p { color: var(--text-muted); }
.service__link { display: inline-flex; align-items: center; gap: 6px; align-self: flex-start; margin-top: auto; padding: 10px 18px; min-height: 44px; border-radius: var(--radius-pill); background: var(--bg-soft); font-family: var(--font-head); font-weight: 700; font-size: .92rem; transition: background-color .2s, color .2s; }
.service__link:hover { background: var(--navy); color: var(--white); }

.service--orange { background: var(--orange); border-color: var(--orange); }
.service--orange p { color: var(--navy); }
.service--orange .service__icon { border-color: var(--orange); }
.service--orange .service__link { background: var(--navy); color: var(--white); }
.service--orange .service__link:hover { background: var(--navy-950); }
.service--navy { background: var(--navy); border-color: var(--navy); color: var(--white); }
.service--navy p { color: var(--text-on-dark); }
.service--navy .service__icon { background: var(--orange); color: var(--navy-950); border-color: var(--navy); }
.service--navy .service__link { background: var(--orange); color: var(--navy-950); }
.service--navy .service__link:hover { background: var(--orange-hover); }
@media (min-width: 768px) { .services { grid-template-columns: repeat(3, 1fr); } }

/* ===== About ===== */
.about { display: grid; gap: 48px; align-items: center; }
.about__media { position: relative; }
.about__img-main { width: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.about__badge {
  position: absolute; left: 20px; bottom: -24px;
  display: grid; grid-template-columns: auto 1fr; column-gap: 12px; align-items: center;
  padding: 16px 20px; border-radius: var(--radius); background: var(--navy); color: var(--white); box-shadow: var(--shadow-lg);
}
.about__badge .icon { grid-row: span 2; width: 34px; height: 34px; color: var(--orange); }
.about__badge strong { font-family: var(--font-head); font-size: 1.1rem; }
.about__badge span { font-size: .85rem; color: var(--text-on-dark); }
.about__content .section-lead { margin-top: 18px; }
.about__list { display: grid; gap: 12px; margin-top: 24px; }
.about__list li { display: flex; gap: 12px; align-items: flex-start; font-weight: 500; }
.about__list .icon { flex-shrink: 0; width: 24px; height: 24px; padding: 4px; margin-top: 1px; border-radius: 50%; background: var(--orange-soft); color: var(--orange-ink); }
.about__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 28px; padding: 14px 14px 14px 18px; border-radius: var(--radius); background: var(--navy); color: var(--white); }
.about__cta-icon { color: var(--orange); display: grid; }
.about__cta-icon .icon { width: 26px; height: 26px; }
.about__cta p { flex: 1 1 220px; font-size: .95rem; color: var(--text-on-dark); }
@media (min-width: 960px) { .about { grid-template-columns: 1fr 1fr; gap: 72px; } }

/* ===== Stats ===== */
.stats { display: grid; gap: 28px; margin-top: clamp(64px, 8vw, 96px); }
.stat { position: relative; padding-top: 22px; border-top: 1px solid var(--border); }
.stat::before { content: ""; position: absolute; top: -2px; left: 0; width: 56px; height: 3px; background: var(--orange); border-radius: 3px; }
.stat__value { display: block; font-family: var(--font-head); font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 700; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat__label { display: block; margin-top: 10px; font-family: var(--font-head); font-weight: 600; }
.stat p { margin-top: 4px; color: var(--text-muted); font-size: .92rem; }
@media (min-width: 600px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .stats { grid-template-columns: repeat(4, 1fr); gap: 36px; } }

/* ===== Pricing ===== */
.pricing__tabs { display: flex; gap: 8px; overflow-x: auto; padding: 6px; margin-bottom: 24px; border-radius: var(--radius-pill); background: var(--white); border: 1px solid var(--border); width: max-content; max-width: 100%; scrollbar-width: none; }
.pricing__tabs::-webkit-scrollbar { display: none; }
.tab { flex-shrink: 0; min-height: 44px; padding: 0 20px; border: 0; border-radius: var(--radius-pill); background: transparent; font-family: var(--font-head); font-weight: 600; color: var(--text-muted); cursor: pointer; transition: background-color .2s, color .2s; }
.tab:hover { color: var(--navy); background: var(--bg-soft); }
.tab[aria-selected="true"] { background: var(--navy); color: var(--white); }
.pricing__body { display: grid; gap: 24px; align-items: start; }
.price-panel { padding: 8px 28px; border-radius: var(--radius-lg); background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow-sm); animation: fadeUp .35s var(--ease); }
.price-panel__title { font-size: 1.1rem; padding: 20px 0 8px; color: var(--orange-ink); text-transform: uppercase; letter-spacing: .06em; }
.price-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 18px 0; border-top: 1px dashed var(--border); }
.price-row:first-child { border-top: 0; }
.price-row__name { font-weight: 600; }
.price-row__note { margin-top: 6px; font-size: .9rem; color: var(--text-muted); max-width: 60ch; }
.price-row__price { flex-shrink: 0; padding: 6px 14px; border-radius: var(--radius-pill); background: var(--orange-soft); color: var(--orange-ink); font-family: var(--font-head); font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pricing__side { display: grid; gap: 20px; }
.info-box { padding: 24px 26px; border-radius: var(--radius-lg); background: var(--white); border: 1px solid var(--border); }
.info-box--soft { background: var(--orange-soft); border-color: transparent; }
.info-box h3 { font-size: 1.05rem; margin-bottom: 12px; }
.info-box ul { display: grid; gap: 10px; }
.info-box li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; color: var(--text-muted); }
.info-box .icon { flex-shrink: 0; margin-top: 4px; width: 1em; height: 1em; color: var(--orange-ink); }
.pricing__aside { position: relative; display: grid; gap: 14px; padding: 30px; border-radius: var(--radius-lg); background: var(--navy); color: var(--white); overflow: hidden; }
.pricing__aside::before { content: ""; position: absolute; right: -60px; top: -60px; width: 180px; height: 180px; border-radius: 50%; background: radial-gradient(circle, rgba(221,110,18,.4), transparent 70%); }
.pricing__aside .eyebrow { margin-bottom: 0; justify-self: start; }
.pricing__aside h3 { font-size: 1.4rem; }
.pricing__aside ul { display: grid; gap: 8px; margin-bottom: 8px; color: var(--text-on-dark); }
.pricing__aside li { display: flex; gap: 10px; align-items: center; }
.pricing__aside li .icon { color: var(--orange); }
@media (min-width: 960px) { .pricing__body { grid-template-columns: 1.7fr 1fr; } .pricing__side { position: sticky; top: 100px; } }
@media (max-width: 560px) {
  .pricing__tabs { display: grid; grid-template-columns: 1fr 1fr; width: 100%; border-radius: var(--radius); }
  .tab { border-radius: 12px; padding: 0 10px; }
  .price-panel { padding: 4px 18px; }
  .price-row { flex-direction: column; gap: 8px; }
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ===== Process ===== */
.section--navy .section-title { color: var(--white); }
.steps { position: relative; display: grid; gap: 20px; counter-reset: step; }
.step { position: relative; padding: 30px 26px; border-radius: var(--radius-lg); background: rgba(255,255,255,.04); border: 1px solid var(--navy-line); transition: border-color .3s, background-color .3s, transform .3s var(--ease); }
.step:hover { border-color: rgba(221,110,18,.6); background: rgba(255,255,255,.07); transform: translateY(-4px); }
.step__num { display: inline-grid; place-items: center; width: 56px; height: 56px; margin-bottom: 20px; border-radius: 16px; background: var(--orange); color: var(--navy-950); font-family: var(--font-head); font-weight: 700; font-size: 1.3rem; }
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--text-on-dark); font-size: .95rem; }
@media (min-width: 640px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps::before { content: ""; position: absolute; top: 58px; left: 12%; right: 12%; height: 2px; background: repeating-linear-gradient(90deg, rgba(221,110,18,.6) 0 8px, transparent 8px 16px); }
  .step { background: var(--navy); }
  .step:hover { background: var(--navy-800); }
}

/* ===== Gallery ===== */
.gallery { display: grid; gap: 16px; }
.gallery figure { position: relative; margin: 0; height: 100%; border-radius: var(--radius); overflow: hidden; }
.gallery img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .6s var(--ease); }
.gallery figure:hover img { transform: scale(1.05); }
.gallery figcaption { position: absolute; left: 12px; right: 12px; bottom: 12px; padding: 10px 14px; border-radius: 12px; background: rgba(10,21,40,.82); color: var(--white); font-weight: 600; font-size: .92rem; backdrop-filter: blur(6px); }
@media (min-width: 640px) and (max-width: 1023px) { .gallery { grid-template-columns: repeat(2, 1fr); } .gallery__item--1 { grid-column: span 2; } }
@media (min-width: 1024px) {
  .gallery { grid-template-columns: 1.5fr 1fr; grid-template-rows: repeat(2, 250px); }
  .gallery__item--1 { grid-row: span 2; }
  .gallery img { aspect-ratio: auto; }
}

/* ===== Commitments ===== */
.commits { display: grid; gap: 20px; }
.commit { position: relative; padding: 32px 28px; border-radius: var(--radius-lg); background: var(--white); border: 1px solid var(--border); overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.commit:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.commit::after { content: ""; position: absolute; right: -40px; bottom: -40px; width: 140px; height: 140px; border-radius: 50%; background: rgba(18,35,63,.05); }
.commit__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: var(--orange-soft); color: var(--orange-ink); }
.commit__icon .icon { width: 26px; height: 26px; }
.commit__value { display: block; margin-top: 22px; font-family: var(--font-head); font-size: 2.4rem; line-height: 1; letter-spacing: -0.03em; }
.commit h3 { margin-top: 10px; font-size: 1.15rem; }
.commit p { margin-top: 8px; color: var(--text-muted); }
.commit > * { position: relative; z-index: 1; }
.commit--orange { background: var(--orange); border-color: var(--orange); }
.commit--orange .commit__icon { background: var(--navy); color: var(--orange); }
.commit--orange p { color: var(--navy); }
.commit--orange::after { background: rgba(255,255,255,.15); }
.commit--navy { background: var(--navy); border-color: var(--navy); color: var(--white); }
.commit--navy .commit__icon { background: var(--orange); color: var(--navy-950); }
.commit--navy p { color: var(--text-on-dark); }
.commit--navy::after { background: rgba(255,255,255,.06); }
@media (min-width: 768px) { .commits { grid-template-columns: repeat(3, 1fr); } }

/* ===== FAQ ===== */
.faq { display: grid; gap: 40px; }
.faq__intro .section-lead { margin: 16px 0 24px; }
.faq__list { display: grid; gap: 12px; }
.faq-item { border-radius: var(--radius); background: var(--bg-soft); border: 1px solid transparent; transition: background-color .25s, border-color .25s; }
.faq-item[open] { background: var(--white); border-color: var(--border); box-shadow: var(--shadow-sm); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; padding: 18px 22px; cursor: pointer; list-style: none; font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item__icon { display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--navy); color: var(--white); transition: transform .3s var(--ease), background-color .3s; }
.faq-item[open] .faq-item__icon { transform: rotate(45deg); background: var(--orange); color: var(--navy-950); }
.faq-item p { padding: 0 22px 20px; color: var(--text-muted); }
@media (min-width: 960px) { .faq { grid-template-columns: 1fr 1.5fr; gap: 64px; } .faq__intro { position: sticky; top: 110px; align-self: start; } }

/* ===== CTA ===== */
.cta { padding-bottom: var(--section-y); }
.cta__box { position: relative; display: grid; gap: 28px; align-items: center; padding: clamp(32px, 6vw, 64px); border-radius: var(--radius-lg); overflow: hidden; background: var(--navy); color: var(--white); isolation: isolate; }
.cta__box .hero__grid-bg { z-index: -1; }
.cta__box::before { content: ""; position: absolute; inset: 0; z-index: -2; background: radial-gradient(600px 300px at 100% 100%, rgba(221,110,18,.45), transparent 70%), linear-gradient(100deg, var(--navy) 40%, var(--navy-700)); }
.cta h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); text-wrap: balance; }
.cta__content p { margin-top: 12px; color: var(--text-on-dark); }
.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; }
@media (min-width: 960px) { .cta__box { grid-template-columns: 1.4fr 1fr; } .cta__actions { justify-content: flex-end; } }
@media (max-width: 520px) { .cta__actions .btn { width: 100%; } }

/* ===== Footer ===== */
.footer { background: var(--navy-950); color: var(--text-on-dark); padding-top: 64px; }
.footer__grid { display: grid; gap: 36px; padding-bottom: 40px; }
.footer__brand p { margin-top: 16px; max-width: 40ch; font-size: .95rem; }
.footer__title { font-size: 1rem; color: var(--white); margin-bottom: 16px; }
.footer__links, .footer__contact { display: grid; gap: 6px; }
.footer__links a, .footer__contact a { display: inline-flex; align-items: center; min-height: 36px; transition: color .2s; }
.footer__links a:hover, .footer__contact a:hover { color: var(--orange-hover); }
.footer__contact li { display: flex; align-items: center; gap: 10px; min-height: 36px; }
.footer__contact .icon { color: var(--orange); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-block: 22px; border-top: 1px solid var(--navy-line); font-size: .85rem; color: #9aa7bc; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.5fr 1fr 1.2fr; } }

/* ===== Mobile call bar ===== */
.callbar { display: none; }
@media (max-width: 768px) {
  .callbar {
    position: fixed; z-index: 60; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom));
    display: grid; grid-template-columns: 1.3fr 1fr; gap: 8px; padding: 8px;
    border-radius: var(--radius-pill); background: rgba(10,21,40,.94); box-shadow: var(--shadow-lg); backdrop-filter: blur(10px);
  }
  .callbar__btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; border-radius: var(--radius-pill); font-family: var(--font-head); font-weight: 700; }
  .callbar__btn--call { background: var(--orange); color: var(--navy-950); }
  .callbar__btn--zalo { background: rgba(255,255,255,.1); color: var(--white); }
  body { padding-bottom: 84px; }
}

/* ===== 404 ===== */
.notfound { padding-block: 120px; min-height: 60vh; }
.notfound .section-lead { margin-top: 16px; }

/* ===== Reveal on scroll ===== */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}