/* ==========================================================================
   PHƯƠNG ÁN 2 — “CHUẨN KỸ THUẬT”
   Conversion · specs · dự toán
   ========================================================================== */

:root {
  --font-body: "Be Vietnam Pro", system-ui, sans-serif;
  --font-display: "Be Vietnam Pro", system-ui, sans-serif;
  --font-mono: "Be Vietnam Pro", system-ui, sans-serif;
  --container-max: 1280px;
  --gutter: 24px;

  --bg: #f4f7fa;
  --surface: #fff;
  --ink: #0a1b2b;
  --muted: #5c6c7c;
  --brand: #0b2a4a;
  --brand-2: #0f3a5f;
  --accent: #f26522;
  --accent-soft: #fff1e8;
  --line: #dce5ee;
  --line-strong: #c3d0dd;

  --btn-radius: 6px;
  --input-radius: 6px;
  --modal-radius: 12px;
  --focus: #f26522;
  --selection: #0b2a4a;
}

.icon { width: 17px; height: 17px; flex: none; }
.mono {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* --- Utility --- */
.utility { background: var(--ink); color: rgba(255, 255, 255, .78); font-size: 11.5px; }
.utility__in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 36px; }
.utility p { display: flex; align-items: center; gap: 6px; }
.utility .icon { width: 14px; height: 14px; color: var(--accent); }
.utility__sep { width: 1px; height: 10px; background: rgba(255, 255, 255, .2); margin-inline: 8px; }
.utility__links { display: flex; align-items: center; gap: 14px; }
.utility__links a { display: inline-flex; align-items: center; gap: 5px; font-weight: 600; }
.utility__links a:hover { color: #fff; }
.utility__badge {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .04em;
}

/* --- Header --- */
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.header__in { display: flex; align-items: center; gap: 24px; min-height: 78px; }
.site-header.is-scrolled .header__in { min-height: 68px; }
.brand { color: var(--brand); }
.brand__mark { width: 42px; height: 42px; }
.brand__text strong { font-size: 21px; font-weight: 800; letter-spacing: -.02em; }
.brand__text small { color: var(--muted); }

.nav { flex: 1; display: flex; justify-content: center; }
.nav > ul > li > a { font-size: 13.5px; font-weight: 600; }
.nav > ul > li > a:hover { color: var(--accent); }
.header__actions { display: flex; align-items: center; gap: 8px; }
.header__actions > * { flex: none; }
.header__cart { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 6px; }
.header__cart:hover { background: var(--bg); }
.header__cart-count {
  position: absolute; top: 2px; right: 0; min-width: 17px; height: 17px; padding: 0 4px;
  display: grid; place-items: center; border-radius: 999px; background: var(--accent); color: #fff;
  font-size: 10px; font-weight: 700; transition: transform .25s ease;
}
.header__cart-count.is-bump { transform: scale(1.35); }
.header__desktop-cta { min-height: 44px; font-size: 13px; }
.menu-btn { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; }
.menu-btn svg { width: 24px; height: 24px; }

.mega { border-radius: 10px; }
.mega__group h4 { font-family: var(--font-mono); letter-spacing: .12em; }
.mega__group a { font-weight: 500; }

/* --- Hero --- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 5.5vw, 76px) 0 clamp(64px, 7vw, 96px);
  background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 42, 74, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 42, 74, .045) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: linear-gradient(180deg, #000 10%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 10%, transparent 88%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 101, 34, .13), transparent 66%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: clamp(32px, 4.5vw, 64px);
  align-items: center;
}
.hero__copy { max-width: 600px; }
.eyebrow { color: var(--accent); font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em; font-weight: 500; }
.eyebrow__sq { width: 7px; height: 7px; background: var(--accent); display: inline-block; margin-right: 8px; }
.hero h1 {
  margin-top: 18px;
  font-size: clamp(42px, 5.2vw, 70px);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: .98;
}
.hero h1 .hl { color: var(--accent); }
.hero__lead { margin-top: 24px; max-width: 48ch; font-size: 16px; line-height: 1.7; color: var(--muted); }
.hero__checks { margin-top: 22px; display: grid; gap: 8px; }
.hero__checks li { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 500; }
.hero__checks svg { width: 17px; height: 17px; color: var(--accent); flex: none; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero__micro { margin-top: 20px; font-size: 11.5px; color: var(--muted); }

.hero__visual { position: relative; padding-bottom: 34px; }
.hero__photo {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 12px;
  background: var(--line);
  box-shadow: 0 30px 70px -40px rgba(10, 27, 43, .55);
}
.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, 27, 43, .45));
}
.hero__tag {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  display: grid;
  gap: 2px;
  padding: 9px 13px;
  background: rgba(255, 255, 255, .94);
  border-radius: 6px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.hero__tag span { font-family: var(--font-mono); font-size: 8.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.hero__tag strong { font-size: 12.5px; color: var(--brand); }
.hero__bubble {
  position: absolute;
  z-index: 2;
  top: -18px;
  right: 16px;
  width: 82px;
  height: 82px;
  display: grid;
  place-content: center;
  text-align: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  line-height: 1;
  box-shadow: 0 16px 30px -14px rgba(200, 70, 10, .6);
}
.hero__bubble strong { font-size: 27px; font-weight: 800; }
.hero__bubble span { font-size: 9px; letter-spacing: .12em; text-transform: uppercase; margin-top: 2px; }

.quick-quote {
  position: absolute;
  z-index: 3;
  left: -28px;
  bottom: 0;
  width: 322px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 28px 60px -30px rgba(10, 27, 43, .45);
}
.quick-quote__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.quick-quote__head .mono { color: var(--brand); }
.quick-quote__free { font-size: 9.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #15803d; background: #e9f9ef; padding: 3px 8px; border-radius: 999px; }
.quick-quote .field { margin-bottom: 10px; }
.quick-quote .field label { font-size: 9.5px; }
.quick-quote .field input, .quick-quote .field select { min-height: 43px; padding: 10px 12px; font-size: 14px; }
.quick-quote .btn { min-height: 44px; margin-top: 2px; }
.quick-quote .form-note { margin-top: 8px; font-size: 10px; text-align: center; }

/* --- Trust bar --- */
.trustbar { background: #fff; border-block: 1px solid var(--line); position: relative; z-index: 2; }
.trustbar__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 18px 0; }
.trustbar__grid > div { display: flex; align-items: center; gap: 12px; }
.trustbar__grid svg { width: 23px; height: 23px; color: var(--accent); flex: none; }
.trustbar__grid strong { display: block; font-size: 12.5px; letter-spacing: -.01em; }
.trustbar__grid span { display: block; font-size: 11px; color: var(--muted); }

/* --- Section base --- */
.section { padding-block: clamp(56px, 7vw, 92px); }
.section-head { display: grid; grid-template-columns: 1fr .72fr; gap: clamp(24px, 4vw, 60px); align-items: end; margin-bottom: clamp(26px, 3.5vw, 44px); }
.section-head h2 {
  margin-top: 12px;
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.05;
}
.section-head__side { justify-self: end; max-width: 44ch; }
.section-head__side.lead { font-size: 14px; }
.section-head .btn--text { justify-self: start; margin-top: 12px; font-size: 12.5px; }

/* --- Categories --- */
.categories { background: var(--bg); }
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: 0 24px 44px -30px rgba(10, 27, 43, .4); border-color: var(--line-strong); }
.cat-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--line); }
.cat-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cat-card:hover img { transform: scale(1.05); }
.cat-card__count {
  position: absolute; top: 10px; left: 10px;
  padding: 4px 8px; border-radius: 4px;
  background: rgba(10, 27, 43, .82); color: #fff;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .06em;
}
.cat-card__body { padding: 15px 16px 16px; position: relative; }
.cat-card__body strong { display: block; font-size: 15.5px; letter-spacing: -.01em; }
.cat-card__body span { display: block; margin-top: 3px; font-size: 11.5px; color: var(--muted); }
.cat-card__body svg { position: absolute; top: 16px; right: 14px; width: 17px; height: 17px; color: var(--accent); transition: transform .2s ease; }
.cat-card:hover .cat-card__body svg { transform: translate(2px, -2px); }

/* --- Products --- */
.products { background: #fff; }
.filters { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 24px; }
.filter {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 12px; font-weight: 600; color: var(--muted);
  background: #fff; transition: all .2s ease;
}
.filter span { font-family: var(--font-mono); font-size: 9.5px; opacity: .6; }
.filter:hover { border-color: var(--line-strong); color: var(--ink); }
.filter.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }

.pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pcard {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease, transform .25s ease;
}
.pcard:hover { box-shadow: 0 24px 44px -32px rgba(10, 27, 43, .45); border-color: var(--line-strong); transform: translateY(-3px); }
.pcard[hidden] { display: none; }
.pcard__media { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: var(--bg); }
.pcard__media > img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.pcard:hover .pcard__media > img { transform: scale(1.05); }
.pcard .badge { position: absolute; top: 10px; left: 10px; z-index: 2; background: rgba(255, 255, 255, .95); color: var(--brand); border: 1px solid var(--line); }
.badge--hot { background: var(--accent); color: #fff; border-color: var(--accent); }
.pcard__quick {
  position: absolute;
  z-index: 2;
  left: 10px; right: 10px; bottom: 10px;
  min-height: 38px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .96);
  border: 1px solid var(--line);
  color: var(--brand);
  font-size: 11.5px;
  font-weight: 700;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: background-color .2s ease, color .2s ease;
}
.pcard__quick:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.pcard__cart { position: absolute; z-index: 2; top: 10px; right: 10px; }
.pcard__cart button {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 50%; background: rgba(255, 255, 255, .96); border: 1px solid var(--line);
  color: var(--brand); transition: all .2s ease;
}
.pcard__cart button:hover { background: var(--brand); color: #fff; border-color: var(--brand); }
.pcard__cart svg { width: 17px; height: 17px; }
.pcard__body { display: flex; flex-direction: column; flex: 1; padding: 14px; }
.pcard__cat { font-family: var(--font-mono); font-size: 8.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.pcard h3 { margin: 5px 0 10px; font-size: 14.5px; font-weight: 600; line-height: 1.4; letter-spacing: -.01em; min-height: 40px; }
.pcard__price { display: flex; align-items: baseline; gap: 6px; margin-top: auto; padding-top: 8px; border-top: 1px solid var(--line); }
.pcard__price .price { font-size: 17px; font-weight: 800; color: var(--brand); }
.pcard__price .price--contact { font-size: 13px; color: var(--accent); }
.pcard__unit { font-size: 10px; color: var(--muted); }
.pcard__meta { display: flex; align-items: center; gap: 5px; margin-top: 7px; font-size: 10px; color: var(--muted); }
.pcard__meta svg { width: 13px; height: 13px; flex: none; }
.products__note { margin-top: 16px; font-size: 10.5px; }

/* --- Compare --- */
.compare-sec { background: var(--bg); }
.compare {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.compare__row {
  display: grid;
  grid-template-columns: 190px repeat(3, 1fr);
  border-top: 1px solid var(--line);
  align-items: stretch;
}
.compare__row:first-child { border-top: 0; }
.compare__row > * { padding: 14px 18px; font-size: 12.5px; display: flex; align-items: center; }
.compare__row > * + * { border-left: 1px solid var(--line); }
.compare__row--head { background: var(--brand); color: #fff; }
.compare__row--head > * + * { border-left-color: rgba(255, 255, 255, .12); }
.compare__label { font-weight: 600; color: var(--muted); }
.compare__row--head .compare__label { color: rgba(255, 255, 255, .55); }
.compare__col { display: grid !important; align-content: center; gap: 2px; position: relative; }
.compare__col strong { font-size: 14px; font-weight: 700; }
.compare__col small { font-size: 10.5px; color: rgba(255, 255, 255, .6); }
.compare__best {
  position: absolute; top: 8px; right: 10px;
  padding: 2px 7px; border-radius: 999px;
  background: var(--accent); color: #fff;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: .06em;
}
.compare__row > *:nth-child(3) { background: var(--accent-soft); }
.compare__row--head > *:nth-child(3) { background: #1c4265; }
.compare__row .is-best { font-weight: 700; color: var(--brand); }
.compare__row--head > *:nth-child(3) strong { color: #fff; }
.compare__note { margin-top: 12px; font-size: 10.5px; }

/* --- Calculator --- */
.calc {
  position: relative;
  overflow: hidden;
  padding-block: clamp(56px, 7vw, 92px);
  background: var(--brand);
  color: #fff;
}
.calc::before {
  content: "";
  position: absolute;
  inset: 0;
  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: 64px 64px;
  pointer-events: none;
}
.calc__grid { position: relative; display: grid; grid-template-columns: 1fr 470px; gap: clamp(32px, 5vw, 72px); align-items: center; }
.calc__copy h2 {
  margin-top: 14px;
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1.03;
}
.calc__copy p { margin-top: 18px; max-width: 44ch; font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, .7); }
.calc__copy ul { margin-top: 22px; display: grid; gap: 9px; }
.calc__copy li { display: flex; align-items: center; gap: 9px; font-size: 13px; color: rgba(255, 255, 255, .88); }
.calc__copy svg { width: 16px; height: 16px; color: var(--accent); flex: none; }
.eyebrow--light { color: #ffb184; }

.calc__card { background: #fff; color: var(--ink); border-radius: 14px; padding: clamp(20px, 3vw, 28px); box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .5); }
.calc__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.calc__head .mono { color: var(--brand); }
.calc__free { font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: #15803d; background: #e9f9ef; padding: 3px 8px; border-radius: 999px; }
.calc__label { display: block; font-size: 10px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.calc__select {
  width: 100%; min-height: 46px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 6px; background: #fff;
  font-size: 14px; font-weight: 500;
}
.calc__sliders { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 18px; }
.calc__slider label { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: 11px; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
.calc__slider output { font-family: var(--font-mono); font-size: 12px; color: var(--brand); background: var(--bg); padding: 2px 7px; border-radius: 4px; }
.calc__slider input { width: 100%; accent-color: var(--accent); height: 24px; }
.calc__result { margin-top: 18px; padding: 16px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
.calc__result > span { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.calc__result strong { display: block; margin-top: 4px; font-size: clamp(22px, 2.6vw, 28px); font-weight: 800; letter-spacing: -.03em; color: var(--brand); }
.calc__result p { margin-top: 5px; font-size: 10.5px; line-height: 1.5; color: var(--muted); }
.calc__card .btn { margin-top: 14px; }
.calc__disclaimer { margin-top: 9px; font-size: 9.5px; line-height: 1.5; color: var(--muted); }

/* --- Process --- */
.process { background: #fff; }
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 7px; left: 0; right: 0;
  height: 1px;
  background: var(--line-strong);
}
.timeline li { position: relative; padding-top: 32px; }
.timeline__dot {
  position: absolute; top: 0; left: 0;
  width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent);
}
.timeline__num { font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; color: var(--accent); }
.timeline h3 { margin: 6px 0 7px; font-size: 16.5px; font-weight: 700; letter-spacing: -.01em; }
.timeline p { font-size: 12.5px; line-height: 1.65; color: var(--muted); }
.timeline__meta {
  display: inline-block; margin-top: 10px;
  padding: 3px 8px; border-radius: 4px;
  background: var(--bg); border: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 9px; color: var(--muted);
}
.process__note { margin-top: 18px; font-size: 10.5px; }

/* --- Projects --- */
.projects { background: var(--bg); }
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.proj { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.proj:hover { transform: translateY(-3px); box-shadow: 0 24px 44px -32px rgba(10, 27, 43, .4); }
.proj img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .55s ease; }
.proj:hover img { transform: scale(1.04); }
.proj__body { padding: 15px 16px 16px; }
.proj__body .badge { position: absolute; top: 12px; left: 12px; background: rgba(255, 255, 255, .94); color: var(--brand); }
.proj h3 { font-size: 15px; font-weight: 700; margin-bottom: 5px; }
.proj__meta { display: flex; align-items: center; gap: 5px; font-size: 10.5px; color: var(--muted); }
.proj__meta svg { width: 13px; height: 13px; }

/* --- Warranty --- */
.warranty { background: #fff; }
.warranty__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.wcard { padding: 24px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; }
.wcard svg { width: 28px; height: 28px; color: var(--accent); }
.wcard h3 { margin: 14px 0 8px; font-size: 17px; font-weight: 700; }
.wcard p { font-size: 13px; line-height: 1.65; color: var(--muted); }

/* --- FAQ --- */
.faq { background: var(--bg); }
.faq__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 44px; }
.faq__grid .faq-item { border-top: 1px solid var(--line); }
.faq__grid .faq-item:nth-child(-n+2) { border-top: 0; }
.faq-item summary { font-size: 15px; }
.faq-item p { font-size: 13px; }

/* --- News --- */
.news { background: #fff; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.post:hover { transform: translateY(-3px); box-shadow: 0 24px 44px -32px rgba(10, 27, 43, .4); }
.post__media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg); }
.post__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.post:hover .post__media img { transform: scale(1.04); }
.post__body { padding: 16px; }
.post__meta { display: block; font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.post h3 { margin: 7px 0 14px; font-size: 16px; font-weight: 700; line-height: 1.4; }
.post__more { display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 600; color: var(--brand); }
.post__more svg { width: 14px; height: 14px; }
.post--cta { border: 0; background: var(--brand); color: #fff; }
.post__cta { padding: 26px; display: flex; flex-direction: column; align-items: flex-start; height: 100%; }
.post__cta .mono { color: #ffb184; }
.post__cta strong { margin-top: 10px; font-size: 26px; font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.post__cta p { margin-top: 10px; font-size: 12.5px; line-height: 1.6; color: rgba(255, 255, 255, .68); }
.post__cta .btn { margin-top: auto; }

/* --- Area --- */
.area { padding-block: clamp(48px, 6vw, 80px); background: var(--bg); border-top: 1px solid var(--line); }
.area__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.area h2 { margin-top: 12px; font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; letter-spacing: -.035em; line-height: 1.05; }
.area .lead { margin-top: 14px; font-size: 13.5px; max-width: 40ch; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips a { display: inline-block; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 12px; transition: all .2s ease; }
.chips a:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.area__right .btn { margin-top: 20px; font-size: 13px; }

/* --- CTA end --- */
.cta-end { padding-block: clamp(48px, 6vw, 76px); background: var(--brand); color: #fff; }
.cta-end__in { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-end h2 { margin-top: 12px; font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; letter-spacing: -.04em; line-height: 1.04; }
.cta-end h2 span { color: #ffb184; }
.cta-end__actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* --- Footer --- */
.footer { background: #071a2c; color: rgba(255, 255, 255, .78); padding-top: 56px; }
.footer .brand__text strong { color: #fff; }
.footer .brand__text small { color: rgba(255, 255, 255, .45); }
.footer__top { display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(30px, 5vw, 70px); padding-bottom: 40px; }
.footer__brand > p { margin-top: 16px; max-width: 40ch; font-size: 12.5px; line-height: 1.7; color: rgba(255, 255, 255, .5); }
.footer__contact { margin-top: 20px; display: grid; gap: 8px; }
.footer__contact li { display: flex; align-items: flex-start; gap: 8px; font-size: 12.5px; }
.footer__contact svg { width: 15px; height: 15px; color: var(--accent); margin-top: 2px; flex: none; }
.footer__contact a:hover { color: #fff; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h4 { color: rgba(255, 255, 255, .38); font-size: 9.5px; font-family: var(--font-mono); letter-spacing: .14em; }
.footer-col a { color: rgba(255, 255, 255, .72); font-size: 12.5px; padding: 4px 0; }
.footer-col a:hover { color: var(--accent); }
.footer__bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 18px 0 24px; border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 10.5px; color: rgba(255, 255, 255, .4);
}
.footer__pay { display: flex; gap: 6px; }
.footer__pay span { padding: 3px 8px; border: 1px solid rgba(255, 255, 255, .16); border-radius: 4px; font-size: 9px; }
.footer__top-btn { font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: rgba(255, 255, 255, .6); }

/* --- Modal --- */
.modal__panel { border-radius: 12px; }
.modal__kicker { color: var(--accent); font-family: var(--font-mono); }
.modal__title { font-weight: 800; letter-spacing: -.03em; }

/* --- Responsive --- */
@media (max-width: 1180px) {
  .pgrid { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-quote { left: -12px; }
}

@media (max-width: 1024px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; }
  .hero__grid { grid-template-columns: 1fr; gap: 38px; }
  .hero__copy { max-width: 660px; }
  .hero__visual { max-width: 620px; padding-bottom: 0; }
  .quick-quote { position: static; width: 100%; margin-top: 14px; }
  .hero__photo { aspect-ratio: 4 / 3; }
  .calc__grid { grid-template-columns: 1fr; }
  .calc__copy { max-width: 620px; }
  .calc__card { max-width: 540px; }
  .section-head { grid-template-columns: 1fr; }
  .section-head__side { justify-self: start; max-width: 54ch; }
  .faq__grid { grid-template-columns: 1fr; }
  .faq__grid .faq-item:nth-child(2) { border-top: 1px solid var(--line); }
  .area__grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .warranty__grid { grid-template-columns: 1fr 1fr; }
  .wcard:last-child { grid-column: 1 / -1; }
  .proj-grid { grid-template-columns: 1fr 1fr; }
  .proj:last-child { grid-column: 1 / -1; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .post--cta { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .utility p { display: none; }
  .utility__in { justify-content: flex-end; }
  .pgrid { grid-template-columns: 1fr 1fr; }
  .trustbar__grid { grid-template-columns: 1fr 1fr; row-gap: 14px; }
  .timeline { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .timeline::before { display: none; }
  .mobile-bar { display: flex; }
  body { padding-bottom: 72px; }
  .cta-end { padding-bottom: 96px; }
  .footer { padding-bottom: 8px; }
}

@media (max-width: 640px) {
  .header__search { display: none; }
  .header__in { gap: 10px; }
  .hero h1 { font-size: clamp(36px, 10vw, 50px); }
  .hero__bubble { width: 68px; height: 68px; top: -12px; }
  .hero__bubble strong { font-size: 22px; }
  .hero__photo { aspect-ratio: 1 / 1; }
  .cat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cat-card__media { aspect-ratio: 16 / 11; }
  .cat-card__body { padding: 11px; }
  .cat-card__body strong { font-size: 13px; }
  .cat-card__body span { font-size: 10.5px; }
  .cat-card__count { font-size: 8px; padding: 3px 6px; }
  .cat-card__body svg { top: 12px; right: 10px; width: 14px; height: 14px; }
  .pgrid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .pcard { flex-direction: column; }
  .pcard__media { width: 100%; aspect-ratio: 1 / 1; flex: none; }
  .pcard__body { padding: 10px; }
  .pcard h3 { min-height: 52px; font-size: 12.5px; }
  .pcard__cat { font-size: 8px; }
  .pcard__price .price { font-size: 15px; }
  .pcard__quick { left: 6px; right: 6px; bottom: 6px; min-height: 32px; font-size: 10px; }
  .pcard .badge { top: 6px; left: 6px; font-size: 8px; padding: 3px 6px; }
  .pcard__cart { top: 6px; right: 6px; }
  .pcard__cart button { width: 32px; height: 32px; }
  .pcard__meta { display: none; }
  .compare { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .compare__row { min-width: 680px; grid-template-columns: 150px repeat(3, 1fr); }
  .compare__row > * { padding: 12px 14px; font-size: 12px; }
  .calc__sliders { grid-template-columns: 1fr; gap: 12px; }
  .timeline { grid-template-columns: 1fr; }
  .warranty__grid { grid-template-columns: 1fr; }
  .wcard:last-child { grid-column: auto; }
  .proj-grid { grid-template-columns: 1fr; }
  .proj:last-child { grid-column: auto; }
  .news-grid { grid-template-columns: 1fr; }
  .post--cta { grid-column: auto; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .footer__bottom { align-items: flex-start; }
  .footer__top-btn { display: none; }
  .cta-end__actions { width: 100%; }
  .cta-end__actions .btn { width: 100%; }
  .hero__cta .btn { width: 100%; }
  .hero__cta { gap: 8px; }
}

@media (max-width: 420px) {
  .pcard { flex-direction: column; }
  .pcard__media { width: 100%; }
  .pcard__quick { min-height: 32px; font-size: 9.5px; }
  .pcard h3 { font-size: 12px; min-height: 50px; }
  .pgrid { gap: 8px; }
  .trustbar__grid { grid-template-columns: 1fr; }
}