/* ==========================================================================
   TERRA ELEVATOR — Design System v1.0
   Màu thương hiệu lấy từ logo: Cam Terra + Xanh than (Navy)
   ========================================================================== */
:root {
  --c-primary: #f26a1b;
  --c-primary-600: #d9560b;
  --c-primary-050: #fff3eb;
  --c-navy: #0d1b2e;
  --c-navy-800: #13253d;
  --c-navy-700: #1c3352;
  --c-ink: #1b2430;
  --c-body: #4a5565;
  --c-muted: #7a8494;
  --c-line: #e6e9ef;
  --c-bg: #ffffff;
  --c-bg-soft: #f5f7fa;
  --c-gold: #c9a45c;
  --c-success: #1f9d55;

  --ff: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(13, 27, 46, .06);
  --shadow: 0 12px 32px rgba(13, 27, 46, .10);
  --shadow-lg: 0 24px 60px rgba(13, 27, 46, .18);
  --container: 1240px;
  --header-h: 84px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--ff); font-size: 16px; line-height: 1.7;
  color: var(--c-body); background: var(--c-bg); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-primary); }
h1, h2, h3, h4, h5 { color: var(--c-ink); line-height: 1.25; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.4vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
ul { padding-left: 1.2em; }
button, input, select, textarea { font: inherit; color: inherit; }
.icon { width: 1.2em; height: 1.2em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; vertical-align: middle; }
.icon--fill { fill: currentColor; stroke: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 999; background: var(--c-primary); color: #fff; padding: 8px 16px; border-radius: 6px; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid rgba(242, 106, 27, .5); outline-offset: 2px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: clamp(56px, 8vw, 110px) 0; }
.section--soft { background: var(--c-bg-soft); }
.section--dark { background: var(--c-navy); color: #c3cbd8; }
.section--dark h2, .section--dark h3 { color: #fff; }
.text-center { text-align: center; }
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Section heading ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font-size: .8rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; color: var(--c-primary); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.sec-head { max-width: 720px; margin-bottom: 48px; }
.sec-head.text-center { margin-left: auto; margin-right: auto; }
.sec-head.text-center .eyebrow::after { content: ""; width: 28px; height: 2px; background: currentColor; }
.sec-head p { font-size: 1.05rem; color: var(--c-muted); }
.sec-head--row { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; max-width: none; flex-wrap: wrap; }
.sec-head--row > div { max-width: 640px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 26px;
  border-radius: 999px; font-weight: 700; font-size: .95rem; border: 2px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s, background .2s, color .2s; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--c-primary); color: #fff; box-shadow: 0 10px 24px rgba(242, 106, 27, .35); }
.btn--primary:hover { background: var(--c-primary-600); color: #fff; }
.btn--dark { background: var(--c-navy); color: #fff; }
.btn--dark:hover { background: var(--c-navy-700); color: #fff; }
.btn--ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn--ghost:hover { background: #fff; color: var(--c-navy); }
.btn--outline { border-color: var(--c-line); color: var(--c-ink); background: #fff; }
.btn--outline:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn--sm { padding: 10px 18px; font-size: .88rem; }
.btn--block { width: 100%; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--c-primary); }
.link-arrow .icon { transition: transform .2s; }
.link-arrow:hover .icon { transform: translateX(4px); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.topbar { background: var(--c-navy); color: #aab4c3; font-size: .85rem; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 42px; gap: 16px; }
.topbar__list { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.topbar__list li { display: flex; align-items: center; gap: 8px; }
.topbar__list .icon { color: var(--c-primary); width: 15px; height: 15px; }
.topbar__social { display: flex; gap: 6px; }
.topbar__social a { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; color: #fff; }
.topbar__social a:hover { background: var(--c-primary); color: #fff; }
.topbar__social .icon { width: 15px; height: 15px; }

.header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .97); backdrop-filter: blur(10px); border-bottom: 1px solid var(--c-line); transition: box-shadow .3s; }
.header.is-scrolled { box-shadow: var(--shadow); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }
.logo img { height: 54px; width: auto; }
.nav { display: flex; align-items: center; }
.nav__list { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; }
.nav__item { position: relative; }
.nav__link {
  display: flex; align-items: center; gap: 4px; padding: 10px 14px; font-weight: 600; font-size: .95rem; white-space: nowrap;
  color: var(--c-ink); border-radius: 8px;
}
.nav__link .icon { width: 14px; height: 14px; transition: transform .2s; }
.nav__link.is-active, .nav__link:hover { color: var(--c-primary); }
.nav__link.is-active::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: -14px; height: 3px; background: var(--c-primary); border-radius: 3px 3px 0 0; }
.nav__item:hover > .nav__link .icon { transform: rotate(180deg); }

.mega {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translate(-50%, 10px); width: 760px;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 24px; display: grid;
  grid-template-columns: 1fr 1fr 240px; gap: 8px 20px; opacity: 0; visibility: hidden; transition: .25s var(--ease);
}
.mega::before { content: ""; position: absolute; top: -20px; left: 0; right: 0; height: 20px; }
.nav__item:hover .mega, .nav__item:focus-within .mega { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega__link { display: flex; gap: 12px; padding: 12px; border-radius: 10px; align-items: flex-start; }
.mega__link:hover { background: var(--c-bg-soft); }
.mega__link b { display: block; color: var(--c-ink); font-size: .95rem; }
.mega__link span { font-size: .82rem; color: var(--c-muted); line-height: 1.5; }
.mega__ico { width: 40px; height: 40px; border-radius: 10px; background: var(--c-primary-050); color: var(--c-primary); display: grid; place-items: center; flex: none; }
.mega__promo { grid-row: span 3; border-radius: 12px; overflow: hidden; position: relative; color: #fff; display: flex; align-items: flex-end; padding: 18px; min-height: 260px; }
.mega__promo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.mega__promo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(13, 27, 46, .9), transparent 60%); }
.mega__promo div { position: relative; z-index: 1; }
.mega__promo b { display: block; font-size: 1.05rem; margin-bottom: 4px; }
.mega__promo span { font-size: .85rem; color: #ffd2b6; font-weight: 600; }

.header__cta { display: flex; align-items: center; gap: 18px; }
.hotline { display: flex; align-items: center; gap: 12px; }
.hotline__ico { width: 46px; height: 46px; border-radius: 50%; background: var(--c-primary-050); color: var(--c-primary); display: grid; place-items: center; position: relative; }
.hotline__ico::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--c-primary); opacity: .4; animation: ring 1.8s infinite; }
.hotline small { display: block; font-size: .75rem; color: var(--c-muted); line-height: 1.2; }
.hotline b { color: var(--c-ink); font-size: 1.1rem; }
@keyframes ring { 0% { transform: scale(.9); opacity: .6; } 100% { transform: scale(1.35); opacity: 0; } }

.burger { display: none; width: 46px; height: 46px; border-radius: 10px; border: 1px solid var(--c-line); background: #fff; cursor: pointer; place-items: center; }
.burger .icon { width: 22px; height: 22px; }

/* Mobile drawer */
.drawer { position: fixed; inset: 0; z-index: 200; visibility: hidden; }
.drawer__overlay { position: absolute; inset: 0; background: rgba(13, 27, 46, .6); opacity: 0; transition: .3s; }
.drawer__panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(360px, 88vw); background: #fff; transform: translateX(100%); transition: .35s var(--ease); display: flex; flex-direction: column; overflow-y: auto; }
.drawer.is-open { visibility: visible; }
.drawer.is-open .drawer__overlay { opacity: 1; }
.drawer.is-open .drawer__panel { transform: none; }
.drawer__head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--c-line); }
.drawer__head img { height: 42px; width: auto; }
.drawer__close { width: 40px; height: 40px; border: 0; background: var(--c-bg-soft); border-radius: 10px; cursor: pointer; display: grid; place-items: center; }
.drawer__nav { list-style: none; margin: 0; padding: 12px 20px; }
.drawer__nav a { display: block; padding: 13px 0; border-bottom: 1px solid var(--c-line); font-weight: 600; color: var(--c-ink); }
.drawer__nav ul { list-style: none; padding: 0 0 0 16px; margin: 0; }
.drawer__nav ul a { font-weight: 500; font-size: .93rem; color: var(--c-body); }
.drawer__foot { margin-top: auto; padding: 20px; display: grid; gap: 10px; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero { position: relative; color: #fff; background: var(--c-navy); overflow: hidden; }
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(13, 27, 46, .95) 0%, rgba(13, 27, 46, .78) 45%, rgba(13, 27, 46, .25) 100%); }
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-top: clamp(60px, 9vw, 120px); padding-bottom: clamp(120px, 12vw, 170px); }
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero h1 em { font-style: normal; color: var(--c-primary); }
.hero__lead { font-size: 1.13rem; color: #d2d9e3; max-width: 580px; margin-bottom: 32px; }
.hero__badge { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px 8px 8px; border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); font-size: .88rem; margin-bottom: 24px; }
.hero__badge b { background: var(--c-primary); padding: 3px 10px; border-radius: 999px; font-size: .75rem; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__checks { display: flex; gap: 22px; flex-wrap: wrap; list-style: none; padding: 0; margin: 32px 0 0; font-size: .92rem; color: #d2d9e3; }
.hero__checks li { display: flex; align-items: center; gap: 8px; }
.hero__checks .icon { color: var(--c-primary); }

/* Quick quote card */
.quote-card { background: #fff; color: var(--c-body); border-radius: 20px; padding: 30px; box-shadow: var(--shadow-lg); }
.quote-card h2 { font-size: 1.35rem; margin-bottom: 6px; }
.quote-card > p { font-size: .9rem; color: var(--c-muted); margin-bottom: 20px; }

/* Stats bar */
.stats { position: relative; z-index: 2; margin-top: -80px; }
.stats__inner { background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg); display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 30px 28px; display: flex; gap: 16px; align-items: center; }
.stat + .stat { border-left: 1px solid var(--c-line); }
.stat__ico { width: 56px; height: 56px; border-radius: 14px; background: var(--c-primary-050); color: var(--c-primary); display: grid; place-items: center; flex: none; }
.stat__ico .icon { width: 26px; height: 26px; }
.stat b { display: block; font-size: 1.9rem; font-weight: 800; color: var(--c-ink); line-height: 1.1; }
.stat span { font-size: .88rem; color: var(--c-muted); }

/* ==========================================================================
   FORMS
   ========================================================================== */
.form { display: grid; gap: 14px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { font-size: .85rem; font-weight: 600; color: var(--c-ink); }
.field label .req { color: var(--c-primary); }
.input, .select, .textarea {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--c-line); border-radius: 10px; background: #fff;
  font-size: .95rem; transition: border-color .2s, box-shadow .2s;
}
.textarea { min-height: 120px; resize: vertical; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%237a8494' stroke-width='2'%3E%3Cpath d='m1 1 5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.input:focus, .select:focus, .textarea:focus { outline: 0; border-color: var(--c-primary); box-shadow: 0 0 0 4px rgba(242, 106, 27, .12); }
.input.is-invalid { border-color: #d93636; }
.form__note { font-size: .8rem; color: var(--c-muted); display: flex; gap: 6px; align-items: center; }
.form__note .icon { color: var(--c-success); width: 16px; height: 16px; }
.form__success { display: none; padding: 14px 16px; border-radius: 10px; background: #e8f7ee; color: #146c3a; font-weight: 600; font-size: .92rem; }
.form.is-sent .form__success { display: block; }

/* ==========================================================================
   CARDS
   ========================================================================== */
/* Category card */
.cat-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/5; color: #fff; display: flex; align-items: flex-end; isolation: isolate; }
.cat-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .6s var(--ease); }
.cat-card::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to top, rgba(13, 27, 46, .92) 0%, rgba(13, 27, 46, .2) 55%, transparent 100%); }
.cat-card:hover img { transform: scale(1.06); }
.cat-card__body { padding: 26px; width: 100%; }
.cat-card__body small { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: #ffc49f; font-weight: 700; }
.cat-card h3 { color: #fff; font-size: 1.3rem; margin: 6px 0 8px; }
.cat-card p { font-size: .88rem; color: #c9d1dc; margin: 0 0 14px; max-height: 0; opacity: 0; overflow: hidden; transition: .4s var(--ease); }
.cat-card:hover p { max-height: 80px; opacity: 1; }
.cat-card__more { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: .9rem; }
.cat-card__more .icon { width: 30px; height: 30px; padding: 7px; border-radius: 50%; background: var(--c-primary); }
.cat-card:hover { color: #fff; }

/* Product card */
.p-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .3s, transform .3s var(--ease); }
.p-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.p-card__media { position: relative; aspect-ratio: 4/4.4; overflow: hidden; background: var(--c-bg-soft); }
.p-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.p-card:hover .p-card__media img { transform: scale(1.05); }
.p-card__tag { position: absolute; top: 14px; left: 14px; background: var(--c-primary); color: #fff; font-size: .72rem; font-weight: 700; padding: 5px 11px; border-radius: 999px; text-transform: uppercase; letter-spacing: .05em; }
.p-card__tag--dark { background: var(--c-navy); }
.p-card__body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.p-card__cat { font-size: .78rem; color: var(--c-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.p-card h3 { font-size: 1.08rem; margin: 6px 0 12px; }
.p-card__specs { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: .82rem; }
.p-card__specs li { display: flex; align-items: center; gap: 6px; }
.p-card__specs .icon { color: var(--c-primary); width: 15px; height: 15px; }
.p-card__foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; padding-top: 16px; border-top: 1px dashed var(--c-line); }
.p-card__price small { display: block; font-size: .72rem; color: var(--c-muted); }
.p-card__price b { color: var(--c-primary); font-size: 1rem; }

/* Feature item */
.feature { display: flex; gap: 18px; }
.feature__ico { width: 58px; height: 58px; border-radius: 16px; background: var(--c-primary-050); color: var(--c-primary); display: grid; place-items: center; flex: none; transition: .3s; }
.feature__ico .icon { width: 26px; height: 26px; }
.feature:hover .feature__ico { background: var(--c-primary); color: #fff; }
.feature h3 { font-size: 1.1rem; margin-bottom: 6px; }
.feature p { font-size: .93rem; margin: 0; }

/* Why-us split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.split__media { position: relative; }
.split__media .main { border-radius: 20px; aspect-ratio: 4/5; object-fit: cover; width: 85%; }
.split__media .sub { position: absolute; right: 0; bottom: -30px; width: 46%; border-radius: 16px; border: 8px solid #fff; box-shadow: var(--shadow); aspect-ratio: 1; object-fit: cover; }
.split__exp { position: absolute; left: -16px; top: 40px; background: var(--c-primary); color: #fff; padding: 20px 24px; border-radius: 16px; box-shadow: var(--shadow); }
.split__exp b { display: block; font-size: 2.6rem; font-weight: 800; line-height: 1; }
.split__exp span { font-size: .85rem; }
.checklist { list-style: none; padding: 0; margin: 24px 0 32px; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--c-ink); font-weight: 500; }
.checklist .icon { color: #fff; background: var(--c-primary); border-radius: 50%; padding: 4px; width: 24px; height: 24px; margin-top: 2px; }

/* Service card */
.s-card { background: #fff; border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--c-line); position: relative; overflow: hidden; transition: .3s var(--ease); }
.s-card::before { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0; background: var(--c-primary); transition: width .4s var(--ease); }
.s-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.s-card:hover::before { width: 100%; }
.s-card__num { position: absolute; right: 22px; top: 14px; font-size: 3.4rem; font-weight: 800; color: var(--c-bg-soft); line-height: 1; }
.s-card .feature__ico { margin-bottom: 22px; }
.s-card h3 { font-size: 1.15rem; }
.s-card p { font-size: .93rem; }
.section--dark .s-card { background: var(--c-navy-800); border-color: var(--c-navy-700); }
.section--dark .s-card__num { color: var(--c-navy-700); }
.section--dark .s-card .feature__ico { background: rgba(242, 106, 27, .14); }

/* Process */
.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; counter-reset: step; position: relative; }
.process::before { content: ""; position: absolute; top: 34px; left: 8%; right: 8%; height: 2px; background: repeating-linear-gradient(90deg, var(--c-navy-700) 0 8px, transparent 8px 14px); }
.step { text-align: center; position: relative; }
.step__ico { width: 70px; height: 70px; margin: 0 auto 18px; border-radius: 50%; background: var(--c-navy-800); border: 2px solid var(--c-navy-700); color: var(--c-primary); display: grid; place-items: center; position: relative; transition: .3s; }
.step__ico .icon { width: 28px; height: 28px; }
.step__ico::after { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; top: -6px; right: -8px; background: var(--c-primary); color: #fff; font-size: .7rem; font-weight: 800; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; }
.step:hover .step__ico { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.step h3 { font-size: 1rem; margin-bottom: 6px; }
.step p { font-size: .85rem; margin: 0; }

/* Projects gallery */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn { padding: 9px 18px; border-radius: 999px; border: 1.5px solid var(--c-line); background: #fff; font-weight: 600; font-size: .88rem; cursor: pointer; color: var(--c-ink); transition: .2s; }
.filter-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.filter-btn.is-active { background: var(--c-navy); border-color: var(--c-navy); color: #fff; }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 240px; gap: 16px; }
.gallery__item { position: relative; border-radius: var(--radius); overflow: hidden; cursor: zoom-in; display: block; }
.gallery__item.tall { grid-row: span 2; }
.gallery__item.wide { grid-column: span 2; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.gallery__item:hover img { transform: scale(1.06); }
.gallery__cap { position: absolute; inset: auto 0 0 0; padding: 40px 18px 16px; background: linear-gradient(to top, rgba(13, 27, 46, .9), transparent); color: #fff; transform: translateY(10px); opacity: 0; transition: .3s; }
.gallery__cap b { display: block; font-size: .98rem; }
.gallery__cap span { font-size: .8rem; color: #ffc49f; }
.gallery__item:hover .gallery__cap { opacity: 1; transform: none; }
.gallery__item.is-hidden { display: none; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 300; background: rgba(8, 14, 24, .94); display: none; align-items: center; justify-content: center; padding: 40px; }
.lightbox.is-open { display: flex; }
.lightbox img { max-height: 86vh; width: auto; border-radius: 10px; }
.lightbox__cap { position: absolute; bottom: 20px; left: 0; right: 0; text-align: center; color: #fff; font-weight: 600; }
.lightbox button { position: absolute; background: rgba(255, 255, 255, .12); border: 0; color: #fff; width: 50px; height: 50px; border-radius: 50%; cursor: pointer; display: grid; place-items: center; }
.lightbox button:hover { background: var(--c-primary); }
.lightbox__close { top: 20px; right: 20px; }
.lightbox__prev { left: 20px; top: 50%; }
.lightbox__next { right: 20px; top: 50%; }

/* Video */
.video { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; }
.yt { position: relative; aspect-ratio: 16/9; border-radius: 18px; overflow: hidden; background: #000; cursor: pointer; }
.yt img { width: 100%; height: 100%; object-fit: cover; opacity: .8; transition: .3s; }
.yt:hover img { opacity: .6; }
.yt__play { position: absolute; inset: 0; margin: auto; width: 84px; height: 84px; border-radius: 50%; background: var(--c-primary); display: grid; place-items: center; color: #fff; box-shadow: 0 0 0 12px rgba(242, 106, 27, .25); transition: transform .3s; }
.yt:hover .yt__play { transform: scale(1.1); }
.yt__play .icon { width: 30px; height: 30px; margin-left: 4px; }
.yt iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video__list { display: grid; gap: 14px; align-content: start; }
.v-item { display: flex; gap: 14px; align-items: center; padding: 12px; border-radius: 14px; background: var(--c-navy-800); border: 1px solid var(--c-navy-700); color: #fff; cursor: pointer; text-align: left; width: 100%; transition: .2s; }
.v-item:hover, .v-item.is-active { border-color: var(--c-primary); }
.v-item__thumb { width: 110px; aspect-ratio: 16/10; border-radius: 10px; overflow: hidden; position: relative; flex: none; }
.v-item__thumb img { width: 100%; height: 100%; object-fit: cover; }
.v-item__thumb .icon { position: absolute; inset: 0; margin: auto; width: 28px; height: 28px; color: #fff; }
.v-item b { font-size: .93rem; display: block; line-height: 1.4; }
.v-item span { font-size: .78rem; color: #8d99ab; }

/* Testimonials */
.testi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.t-card { background: #fff; border-radius: var(--radius); padding: 30px; border: 1px solid var(--c-line); display: flex; flex-direction: column; }
.t-card__stars { color: #f5a623; display: flex; gap: 2px; margin-bottom: 14px; }
.t-card__stars .icon { width: 18px; height: 18px; }
.t-card blockquote { margin: 0 0 22px; font-size: 1rem; color: var(--c-ink); line-height: 1.75; flex: 1; }
.t-card__author { display: flex; align-items: center; gap: 14px; padding-top: 18px; border-top: 1px solid var(--c-line); }
.avatar { width: 50px; height: 50px; border-radius: 50%; background: var(--c-navy); color: #fff; display: grid; place-items: center; font-weight: 700; flex: none; }
.t-card__author b { display: block; color: var(--c-ink); }
.t-card__author span { font-size: .85rem; color: var(--c-muted); }

/* CTA band */
.cta-band { position: relative; border-radius: 24px; overflow: hidden; padding: clamp(36px, 6vw, 64px); background: var(--c-primary); color: #fff; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.cta-band::before { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%; border: 60px solid rgba(255, 255, 255, .08); }
.cta-band h2 { color: #fff; }
.cta-band p { color: #ffe3d2; font-size: 1.05rem; margin: 0; }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; position: relative; }
.cta-band .btn--dark { box-shadow: 0 10px 24px rgba(0, 0, 0, .2); }
.btn--white { background: #fff; color: var(--c-primary); }
.btn--white:hover { color: var(--c-primary-600); }

/* Blog card */
.b-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--c-line); display: flex; flex-direction: column; transition: .3s var(--ease); }
.b-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.b-card__media { aspect-ratio: 16/10; overflow: hidden; position: relative; }
.b-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.b-card:hover .b-card__media img { transform: scale(1.05); }
.b-card__cat { position: absolute; left: 16px; bottom: 16px; background: #fff; color: var(--c-primary); font-size: .75rem; font-weight: 700; padding: 5px 12px; border-radius: 999px; }
.b-card__body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.meta { display: flex; gap: 16px; font-size: .82rem; color: var(--c-muted); margin-bottom: 10px; flex-wrap: wrap; }
.meta span { display: flex; align-items: center; gap: 6px; }
.meta .icon { width: 15px; height: 15px; }
.b-card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.b-card p { font-size: .92rem; margin-bottom: 16px; }
.b-card .link-arrow { margin-top: auto; font-size: .9rem; }
.b-card--row { flex-direction: row; }
.b-card--row .b-card__media { width: 42%; aspect-ratio: auto; flex: none; }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; transition: .2s; }
.faq details[open] { border-color: var(--c-primary); box-shadow: var(--shadow-sm); }
.faq summary { list-style: none; cursor: pointer; padding: 20px 24px; font-weight: 700; color: var(--c-ink); display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { color: var(--c-primary); transition: transform .3s; width: 22px; height: 22px; }
.faq details[open] summary .icon { transform: rotate(45deg); }
.faq .faq__a { padding: 0 24px 20px; font-size: .95rem; }

/* Offices */
.office { background: #fff; border-radius: var(--radius); padding: 28px; border: 1px solid var(--c-line); position: relative; }
.office__tag { display: inline-block; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; padding: 4px 10px; border-radius: 6px; background: var(--c-primary-050); color: var(--c-primary); margin-bottom: 12px; }
.office h3 { font-size: 1.2rem; }
.office ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: .93rem; }
.office li { display: flex; gap: 10px; }
.office li .icon { color: var(--c-primary); margin-top: 4px; width: 17px; height: 17px; }

/* Brand strip */
.brands { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px 40px; padding: 34px 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.brands span { font-weight: 800; font-size: 1.3rem; color: #b5bdc9; letter-spacing: .04em; transition: color .2s; }
.brands span:hover { color: var(--c-navy); }

/* ==========================================================================
   PAGE HEADER / BREADCRUMB
   ========================================================================== */
.page-hero { position: relative; background: var(--c-navy); color: #fff; padding: clamp(56px, 8vw, 96px) 0; overflow: hidden; }
.page-hero__bg { position: absolute; inset: 0; }
.page-hero__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .28; }
.page-hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--c-navy) 20%, rgba(13, 27, 46, .5)); }
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.8rem); margin-bottom: 12px; }
.page-hero p { color: #c3cbd8; max-width: 640px; margin: 0; font-size: 1.05rem; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 16px; font-size: .88rem; color: #9aa6b8; }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before { content: "/"; color: #5b6b82; }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb [aria-current] { color: var(--c-primary); }
.breadcrumb--light { color: var(--c-muted); }

/* Shop layout */
.shop { display: grid; grid-template-columns: 280px 1fr; gap: 36px; align-items: start; }
.sidebar { display: grid; gap: 24px; position: sticky; top: calc(var(--header-h) + 20px); }
.widget { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; }
.widget__title { font-size: 1rem; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--c-line); display: flex; gap: 8px; align-items: center; }
.widget__title .icon { color: var(--c-primary); }
.cat-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.cat-list a { display: flex; justify-content: space-between; padding: 9px 12px; border-radius: 8px; font-size: .93rem; font-weight: 500; }
.cat-list a:hover, .cat-list a.is-active { background: var(--c-primary-050); color: var(--c-primary); }
.cat-list small { background: var(--c-bg-soft); border-radius: 999px; padding: 0 9px; font-size: .78rem; color: var(--c-muted); }
.check { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: .92rem; cursor: pointer; }
.check input { accent-color: var(--c-primary); width: 17px; height: 17px; }
.widget--cta { background: var(--c-navy); color: #c3cbd8; border: 0; text-align: center; }
.widget--cta h3 { color: #fff; font-size: 1.15rem; }
.widget--cta .hotline-big { display: block; font-size: 1.6rem; font-weight: 800; color: var(--c-primary); margin: 6px 0 16px; }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.toolbar p { margin: 0; font-size: .92rem; }
.toolbar .select { width: auto; padding-top: 10px; padding-bottom: 10px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 48px; list-style: none; padding: 0; }
.pagination a, .pagination span { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; border: 1px solid var(--c-line); font-weight: 600; background: #fff; }
.pagination .is-current { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

/* Product detail */
.pd { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.pd__gallery { position: sticky; top: calc(var(--header-h) + 20px); }
.pd__main { border-radius: 18px; overflow: hidden; aspect-ratio: 4/4.4; background: var(--c-bg-soft); }
.pd__main img { width: 100%; height: 100%; object-fit: cover; }
.pd__thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 12px; }
.pd__thumbs button { border: 2px solid transparent; padding: 0; border-radius: 10px; overflow: hidden; aspect-ratio: 1; cursor: pointer; background: none; }
.pd__thumbs button.is-active { border-color: var(--c-primary); }
.pd__thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd__info h1 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }
.pd__rating { display: flex; gap: 14px; align-items: center; font-size: .9rem; margin-bottom: 18px; flex-wrap: wrap; }
.stock { display: inline-flex; gap: 6px; align-items: center; color: var(--c-success); font-weight: 600; }
.stock::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.pd__price { background: var(--c-bg-soft); border-radius: 14px; padding: 18px 22px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; gap: 16px; flex-wrap: wrap; }
.pd__price small { display: block; color: var(--c-muted); font-size: .82rem; }
.pd__price b { font-size: 1.5rem; color: var(--c-primary); }
.spec-mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 24px; }
.spec-mini div { border: 1px solid var(--c-line); border-radius: 12px; padding: 14px; text-align: center; }
.spec-mini .icon { color: var(--c-primary); width: 24px; height: 24px; margin-bottom: 4px; }
.spec-mini b { display: block; color: var(--c-ink); font-size: 1.05rem; }
.spec-mini span { font-size: .78rem; color: var(--c-muted); }
.pd__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.pd__assure { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 20px; border: 1px dashed var(--c-line); border-radius: 14px; font-size: .88rem; }
.pd__assure div { display: flex; gap: 10px; align-items: center; }
.pd__assure .icon { color: var(--c-primary); width: 22px; height: 22px; }
.tabs { margin-top: 64px; }
.tabs__nav { display: flex; gap: 6px; border-bottom: 2px solid var(--c-line); overflow-x: auto; }
.tabs__btn { padding: 14px 22px; background: none; border: 0; font-weight: 700; color: var(--c-muted); cursor: pointer; position: relative; white-space: nowrap; }
.tabs__btn.is-active { color: var(--c-primary); }
.tabs__btn.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--c-primary); }
.tabs__panel { display: none; padding: 32px 0; }
.tabs__panel.is-active { display: block; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.spec-table th, .spec-table td { padding: 14px 18px; border-bottom: 1px solid var(--c-line); text-align: left; }
.spec-table th { width: 38%; color: var(--c-ink); background: var(--c-bg-soft); font-weight: 600; }
.spec-table thead th { width: auto; background: var(--c-navy); color: #fff; }

/* Article */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.prose { font-size: 1.05rem; color: #3a4452; }
.prose h2 { font-size: 1.6rem; margin-top: 1.8em; scroll-margin-top: 110px; }
.prose h3 { font-size: 1.25rem; margin-top: 1.5em; }
.prose img { border-radius: 14px; margin: 1.5em 0 .5em; }
.prose figcaption { font-size: .85rem; color: var(--c-muted); text-align: center; margin-bottom: 1.5em; }
.prose blockquote { margin: 1.8em 0; padding: 20px 26px; border-left: 4px solid var(--c-primary); background: var(--c-primary-050); border-radius: 0 12px 12px 0; color: var(--c-ink); font-weight: 500; }
.prose ul li, .prose ol li { margin-bottom: .5em; }
.prose table { width: 100%; border-collapse: collapse; font-size: .95rem; margin: 1.5em 0; }
.prose th, .prose td { border: 1px solid var(--c-line); padding: 12px 14px; text-align: left; }
.prose th { background: var(--c-navy); color: #fff; }
.toc { background: var(--c-bg-soft); border-radius: 14px; padding: 22px 26px; margin: 28px 0; }
.toc b { color: var(--c-ink); display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 1.2em; }
.toc a { color: var(--c-body); font-size: .95rem; }
.toc a:hover { color: var(--c-primary); }
.author-box { display: flex; gap: 18px; padding: 24px; border: 1px solid var(--c-line); border-radius: 14px; margin-top: 40px; align-items: center; }
.share { display: flex; gap: 8px; align-items: center; margin-top: 32px; flex-wrap: wrap; font-weight: 600; color: var(--c-ink); }
.share a { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--c-bg-soft); }
.share a:hover { background: var(--c-primary); color: #fff; }
.post-mini { display: flex; gap: 14px; align-items: center; padding: 10px 0; }
.post-mini + .post-mini { border-top: 1px solid var(--c-line); }
.post-mini img { width: 76px; height: 64px; object-fit: cover; border-radius: 8px; flex: none; }
.post-mini b { font-size: .9rem; line-height: 1.4; color: var(--c-ink); display: block; }
.post-mini span { font-size: .78rem; color: var(--c-muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags a { padding: 6px 12px; background: var(--c-bg-soft); border-radius: 6px; font-size: .82rem; }
.tags a:hover { background: var(--c-primary); color: #fff; }

/* About */
.timeline { position: relative; display: grid; gap: 28px; padding-left: 36px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px; background: var(--c-line); }
.tl-item { position: relative; }
.tl-item::before { content: ""; position: absolute; left: -36px; top: 6px; width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 5px solid var(--c-primary); }
.tl-item b { color: var(--c-primary); font-size: .9rem; }
.tl-item h3 { margin: 2px 0 6px; font-size: 1.1rem; }
.tl-item p { margin: 0; font-size: .93rem; }
.value-card { text-align: center; padding: 36px 26px; border-radius: var(--radius); background: #fff; border: 1px solid var(--c-line); }
.value-card .feature__ico { margin: 0 auto 18px; }
.team-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--c-line); padding: 28px; text-align: center; }
.team-card .avatar { width: 88px; height: 88px; font-size: 1.6rem; margin: 0 auto 16px; background: linear-gradient(135deg, var(--c-navy), var(--c-navy-700)); border: 4px solid var(--c-primary-050); }
.team-card h3 { font-size: 1.1rem; margin-bottom: 2px; }
.team-card > span { color: var(--c-primary); font-weight: 600; font-size: .88rem; }
.team-card ul { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 6px; font-size: .9rem; }
.team-card li { display: flex; gap: 8px; justify-content: center; align-items: center; }
.team-card li .icon { color: var(--c-primary); width: 16px; height: 16px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-info { background: var(--c-navy); color: #c3cbd8; border-radius: 20px; padding: 40px; position: relative; overflow: hidden; }
.contact-info::after { content: ""; position: absolute; right: -80px; bottom: -80px; width: 260px; height: 260px; border-radius: 50%; border: 40px solid rgba(242, 106, 27, .12); }
.contact-info h2 { color: #fff; font-size: 1.6rem; }
.c-line { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--c-navy-700); }
.c-line:last-of-type { border: 0; }
.c-line__ico { width: 48px; height: 48px; border-radius: 12px; background: rgba(242, 106, 27, .14); color: var(--c-primary); display: grid; place-items: center; flex: none; }
.c-line small { display: block; font-size: .8rem; color: #8d99ab; }
.c-line b, .c-line a { color: #fff; font-weight: 600; }
.form-card { background: #fff; border-radius: 20px; padding: 40px; box-shadow: var(--shadow); border: 1px solid var(--c-line); }
.map { border-radius: 20px; overflow: hidden; height: 440px; border: 1px solid var(--c-line); }
.map iframe { width: 100%; height: 100%; border: 0; }

/* 404 */
.notfound { text-align: center; padding: 100px 0; }
.notfound__code { font-size: clamp(6rem, 18vw, 12rem); font-weight: 800; line-height: 1; background: linear-gradient(135deg, var(--c-primary), var(--c-navy)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer { background: #0a1524; color: #9aa6b8; font-size: .93rem; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding-top: 72px; padding-bottom: 48px; }
.footer h3, .footer__title { color: #fff; font-size: 1.05rem; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer h3::after, .footer__title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 32px; height: 2px; background: var(--c-primary); }
.footer__logo img { height: 56px; width: auto; margin-bottom: 18px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer a:hover { color: var(--c-primary); }
.footer__links a { display: inline-flex; align-items: center; gap: 6px; }
.footer__links a::before { content: "›"; color: var(--c-primary); font-weight: 700; }
.footer__contact li { display: flex; gap: 12px; }
.footer__contact .icon { color: var(--c-primary); margin-top: 4px; width: 17px; height: 17px; }
.footer__contact b { color: #fff; }
.social { display: flex; gap: 10px; margin-top: 22px; }
.social a { width: 40px; height: 40px; border-radius: 10px; background: var(--c-navy-800); display: grid; place-items: center; color: #fff; }
.social a:hover { background: var(--c-primary); color: #fff; }
.newsletter { display: flex; margin-top: 18px; background: var(--c-navy-800); border-radius: 999px; padding: 5px; }
.newsletter input { flex: 1; background: none; border: 0; padding: 0 16px; color: #fff; min-width: 0; }
.newsletter input:focus { outline: 0; }
.footer__bottom { border-top: 1px solid var(--c-navy-800); padding: 22px 0; font-size: .85rem; }
.footer__bottom .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer__bottom ul { display: flex; gap: 20px; }

/* Floating contact */
.float-contact { position: fixed; right: 20px; bottom: 24px; z-index: 90; display: grid; gap: 12px; }
.float-btn { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff; box-shadow: var(--shadow); position: relative; transition: transform .2s; }
.float-btn:hover { transform: scale(1.08); color: #fff; }
.float-btn .icon { width: 24px; height: 24px; }
.float-btn--phone { background: var(--c-primary); animation: shake 2.4s infinite; }
.float-btn--zalo { background: #0068ff; font-weight: 800; font-size: .8rem; }
.float-btn--mess { background: #0a7cff; }
.float-btn__label { position: absolute; right: 64px; background: var(--c-navy); color: #fff; padding: 6px 12px; border-radius: 8px; font-size: .82rem; font-weight: 600; white-space: nowrap; opacity: 0; transform: translateX(8px); transition: .2s; pointer-events: none; }
.float-btn:hover .float-btn__label { opacity: 1; transform: none; }
@keyframes shake { 0%, 50%, 100% { transform: rotate(0); } 10%, 30% { transform: rotate(-12deg); } 20%, 40% { transform: rotate(12deg); } }
.to-top { position: fixed; left: 20px; bottom: 24px; z-index: 90; width: 46px; height: 46px; border-radius: 12px; background: var(--c-navy); color: #fff; border: 0; cursor: pointer; display: grid; place-items: center; opacity: 0; visibility: hidden; transition: .3s; }
.to-top.is-visible { opacity: 1; visibility: visible; }
.mobile-bar { display: none; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1320px) {
  .hotline { display: none; }
}
@media (max-width: 1180px) {
  .nav__link { padding: 10px 10px; font-size: .9rem; }
  .hotline { display: none; }
  .process { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .process::before { display: none; }
}
@media (max-width: 1024px) {
  :root { --header-h: 72px; }
  .nav, .header__cta .btn { display: none; }
  .burger { display: grid; }
  .hotline { display: flex; }
  .logo img { height: 46px; }
  .hero .container { grid-template-columns: 1fr; }
  .quote-card { max-width: 560px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats__inner { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--c-line); }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .shop, .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .video { grid-template-columns: 1fr; }
  .video__list { grid-template-columns: 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr; }
  .cta-band__actions { justify-content: flex-start; }
}
@media (max-width: 860px) {
  .grid-3, .testi { grid-template-columns: 1fr 1fr; }
  .split, .pd, .contact-grid { grid-template-columns: 1fr; }
  .pd__gallery { position: static; }
  .split__media { max-width: 520px; margin-bottom: 40px; }
  .topbar__list li:nth-child(n+2) { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 15px; padding-bottom: 64px; }
  .container { padding: 0 16px; }
  .grid-2, .grid-3, .grid-4, .testi, .form__row, .footer__top, .video__list { grid-template-columns: 1fr; }
  .shop-grid { grid-template-columns: 1fr 1fr !important; gap: 14px; }
  .shop-grid .p-card__specs { display: none; }
  .shop-grid .p-card__body { padding: 14px; }
  .shop-grid .p-card h3 { font-size: .95rem; }
  .shop-grid .p-card__foot .btn { display: none; }
  .process { grid-template-columns: 1fr 1fr; }
  .stats { margin-top: -60px; }
  .stat { padding: 20px 16px; flex-direction: column; text-align: center; gap: 10px; }
  .stat b { font-size: 1.5rem; }
  .gallery { grid-template-columns: 1fr 1fr; grid-auto-rows: 180px; }
  .gallery__item.wide { grid-column: span 2; }
  .hotline, .topbar__social { display: none; }
  .hero .container { padding-bottom: 110px; }
  .quote-card, .form-card, .contact-info { padding: 24px; }
  .b-card--row { flex-direction: column; }
  .b-card--row .b-card__media { width: 100%; aspect-ratio: 16/10; }
  .pd__actions, .pd__assure { grid-template-columns: 1fr; }
  .spec-mini { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .footer__top { padding-top: 48px; gap: 32px; }
  .float-contact { display: none; }
  .float-btn { width: 48px; height: 48px; }
  .to-top { display: none; }
  .mobile-bar { display: grid; grid-template-columns: repeat(3, 1fr); position: fixed; left: 0; right: 0; bottom: 0; z-index: 95; background: #fff; box-shadow: 0 -6px 20px rgba(13, 27, 46, .12); }
  .mobile-bar a { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 9px 0; font-size: .74rem; font-weight: 600; color: var(--c-ink); }
  .mobile-bar a .icon { color: var(--c-primary); width: 22px; height: 22px; }
  .mobile-bar a.is-primary { background: var(--c-primary); color: #fff; }
  .mobile-bar a.is-primary .icon { color: #fff; }
}

/* ==========================================================================
   WORDPRESS
   ========================================================================== */
.footer__title { font-size: 1.05rem; }
.footer__bottom p { margin: 0; }
.footer__bottom ul { list-style: none; margin: 0; padding: 0; }
.form__error { padding: 14px 16px; border-radius: 10px; background: #fdecec; color: #a12626; font-weight: 600; font-size: .92rem; margin: 0; }
.footer .form__success, .footer .form__error { margin-top: 12px; }

/* Menu con 1 cấp (khi không dùng mega menu) */
.nav__item > .sub-menu { position: absolute; top: calc(100% + 14px); left: 0; min-width: 240px; list-style: none; margin: 0; padding: 10px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .25s var(--ease); }
.nav__item > .sub-menu::before { content: ""; position: absolute; top: -20px; left: 0; right: 0; height: 20px; }
.nav__item:hover > .sub-menu, .nav__item:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: none; }
.sub-menu__item a { display: block; padding: 10px 14px; border-radius: 8px; font-weight: 500; font-size: .93rem; color: var(--c-ink); }
.sub-menu__item a:hover { background: var(--c-bg-soft); color: var(--c-primary); }
.drawer__nav .sub-menu { list-style: none; padding: 0 0 0 16px; margin: 0; }
.drawer__nav .sub-menu a { font-weight: 500; font-size: .93rem; color: var(--c-body); }

/* Nội dung soạn thảo trong trang */
.entry-content > *:first-child { margin-top: 0; }
.entry-content img { border-radius: 12px; }
.comment-list { list-style: none; padding: 0; }
.comment-body { border: 1px solid var(--c-line); border-radius: 12px; padding: 18px; margin-bottom: 14px; }
.b-card--row .b-card__media { position: relative; min-height: 320px; }
.b-card--row .b-card__media img { position: absolute; inset: 0; }
@media (max-width: 640px) { .b-card--row .b-card__media { min-height: 0; } .b-card--row .b-card__media img { position: static; } }
.toc ol { list-style: none; padding-left: 0; }
.toc li { padding: 3px 0; }
@media (max-width: 1024px) { .shop > .sidebar { order: 2; } }