/* ===== Xây dựng Lê Gia – stylesheet ===== */
:root {
  --navy: #0e2a47;
  --navy-2: #163a5f;
  --orange: #f08a24;
  --orange-d: #d9731a;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --text: #1f2a37;
  --muted: #5b6b7d;
  --border: #e3e8ef;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(14, 42, 71, .10);
  --shadow-lg: 0 20px 50px rgba(14, 42, 71, .18);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text); background: var(--bg); line-height: 1.7; font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .6em; color: var(--navy); }
p { margin: 0 0 1em; }
ul { margin: 0; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 6px; border: 2px solid var(--orange);
  background: var(--orange); color: #fff; font-weight: 700; font-size: 15px; font-family: inherit;
  cursor: pointer; transition: .25s; text-transform: uppercase; letter-spacing: .03em;
}
.btn:hover { background: var(--orange-d); border-color: var(--orange-d); transform: translateY(-2px); }
.btn:disabled { opacity: .6; cursor: wait; transform: none; }
.btn-outline { background: transparent; color: #fff; border-color: #fff; }
.btn-outline:hover { background: #fff; color: var(--navy); border-color: #fff; }
.btn-navy { background: var(--navy); border-color: var(--navy); }
.btn-navy:hover { background: var(--navy-2); border-color: var(--navy-2); }
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; color: var(--orange);
  font-weight: 700; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 10px;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--orange); }

/* ---------- topbar ---------- */
.topbar { background: var(--navy); color: #c9d6e4; font-size: 13.5px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 40px; flex-wrap: wrap; }
.topbar-info { display: flex; gap: 24px; flex-wrap: wrap; }
.topbar-info span, .topbar-info a { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { width: 15px; height: 15px; fill: none; stroke: var(--orange); stroke-width: 2; }
.topbar a:hover { color: #fff; }

/* ---------- header ---------- */
.header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 14px rgba(0, 0, 0, .06); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { width: 46px; height: 46px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 21px; font-weight: 800; color: var(--navy); letter-spacing: .02em; }
.logo-text small { font-size: 11.5px; color: var(--orange); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.menu { display: flex; align-items: center; gap: 4px; }
.menu a { padding: 10px 14px; font-weight: 600; font-size: 15px; color: var(--navy); border-radius: 6px; transition: .2s; position: relative; }
.menu a:not(.btn)::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--orange); transform: scaleX(0); transition: transform .25s;
}
.menu a:not(.btn):hover::after, .menu a.active::after { transform: scaleX(1); }
.menu a.active { color: var(--orange); }
.menu .btn { margin-left: 10px; padding: 10px 20px; color: #fff; }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 26px; height: 3px; margin: 5px 0; background: var(--navy); border-radius: 2px; transition: .3s; }
.menu-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- hero (home) ---------- */
.hero {
  position: relative; min-height: 640px; display: flex; align-items: center; color: #fff;
  background: linear-gradient(100deg, rgba(14, 42, 71, .92) 0%, rgba(14, 42, 71, .72) 45%, rgba(14, 42, 71, .15) 100%), url("../img/hero.jpg") center/cover no-repeat;
}
.hero-content { max-width: 660px; padding: 90px 0; }
.hero .eyebrow { color: #ffb067; }
.hero .eyebrow::before { background: #ffb067; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 56px); font-weight: 800; letter-spacing: -.01em; }
.hero h1 span { color: var(--orange); }
.hero p { font-size: 18px; color: #dbe5ef; max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

.hero-badges {
  position: relative; z-index: 2; margin-top: -60px;
}
.hero-badges .grid {
  display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.badge { display: flex; gap: 14px; align-items: center; padding: 26px 22px; }
.badge + .badge { border-left: 1px solid var(--border); }
.badge svg { flex: none; width: 44px; height: 44px; fill: none; stroke: var(--orange); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.badge h4 { font-size: 16px; margin: 0 0 2px; }
.badge p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.5; }

/* ---------- page banner (inner pages) ---------- */
.page-banner {
  padding: 90px 0 80px; color: #fff; text-align: center;
  background: var(--navy) center/cover no-repeat;
}
.page-banner h1 { color: #fff; font-size: clamp(30px, 4vw, 46px); margin-bottom: 10px; }
.breadcrumb { font-size: 15px; color: #c9d6e4; }
.breadcrumb a { color: var(--orange); }

/* ---------- sections ---------- */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-navy { background: var(--navy); color: #dbe5ef; }
.section-navy h2, .section-navy h3, .section-navy h4 { color: #fff; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-head .eyebrow::after { content: ""; width: 28px; height: 2px; background: var(--orange); }
.section h2 { font-size: clamp(26px, 3.2vw, 38px); font-weight: 800; }
.section-head p { color: var(--muted); }
.section-navy .section-head p { color: #b9c8d8; }

/* ---------- about split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-img { position: relative; }
.split-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; aspect-ratio: 4/3.4; object-fit: cover; }
.split-img .year-badge {
  position: absolute; right: -20px; bottom: -24px; background: var(--orange); color: #fff;
  padding: 22px 26px; border-radius: var(--radius); box-shadow: var(--shadow-lg); text-align: center;
}
.year-badge strong { display: block; font-size: 38px; line-height: 1; font-weight: 800; }
.year-badge span { font-size: 13px; font-weight: 600; letter-spacing: .05em; }
.split p { color: var(--muted); }
.checklist { list-style: none; padding: 0; margin: 20px 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
.checklist li { padding-left: 30px; position: relative; font-weight: 500; }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--orange); color: #fff; font-size: 12px; display: grid; place-items: center; font-weight: 700;
}

/* ---------- service cards ---------- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s; display: flex; flex-direction: column;
}
.service:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.service-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.service:hover .service-img img { transform: scale(1.08); }
.service-icon {
  position: absolute; left: 22px; bottom: -26px; width: 56px; height: 56px; border-radius: 8px;
  background: var(--orange); display: grid; place-items: center; box-shadow: 0 6px 16px rgba(240, 138, 36, .45);
}
.service-icon svg { width: 28px; height: 28px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.service-body { padding: 42px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.service-body h3 { font-size: 20px; }
.service-body p { color: var(--muted); font-size: 15px; flex: 1; }
.more { color: var(--orange); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .04em; }
.more:hover { color: var(--orange-d); }

/* ---------- service detail (dich-vu page) ---------- */
.svc-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 50px 0; border-bottom: 1px solid var(--border); }
.svc-detail:last-child { border-bottom: 0; }
.svc-detail:nth-child(even) .svc-detail-img { order: 2; }
.svc-detail-img img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.svc-detail h3 { font-size: 26px; }
.svc-detail p { color: var(--muted); }
.svc-detail ul { padding: 0; list-style: none; display: grid; gap: 8px; margin-bottom: 22px; }
.svc-detail li { padding-left: 26px; position: relative; }
.svc-detail li::before { content: ""; position: absolute; left: 0; top: 11px; width: 14px; height: 3px; background: var(--orange); }

/* ---------- stats ---------- */
.stats {
  background: linear-gradient(rgba(14, 42, 71, .9), rgba(14, 42, 71, .9)), url("../img/banner-1.jpg") center/cover fixed;
  color: #fff; padding: 70px 0;
}
.stats .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat strong { display: block; font-size: 50px; font-weight: 800; color: var(--orange); line-height: 1.1; }
.stat span { color: #dbe5ef; font-weight: 500; }

/* ---------- why ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.why {
  padding: 32px 28px; background: #fff; border-radius: var(--radius); border: 1px solid var(--border);
  transition: .3s; position: relative; overflow: hidden;
}
.why::before { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0; background: var(--orange); transition: width .4s; }
.why:hover { box-shadow: var(--shadow); border-color: transparent; }
.why:hover::before { width: 100%; }
.why svg { width: 46px; height: 46px; fill: none; stroke: var(--orange); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 16px; }
.why h4 { font-size: 18px; }
.why p { color: var(--muted); font-size: 15px; margin: 0; }

/* ---------- process ---------- */
.process {
  background: linear-gradient(rgba(14, 42, 71, .94), rgba(14, 42, 71, .94)), url("../img/process.jpg") center/cover;
}
.steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; counter-reset: step; }
.steps li { text-align: center; position: relative; }
.steps li::after {
  content: ""; position: absolute; top: 36px; left: calc(50% + 44px); right: calc(-50% + 44px);
  border-top: 2px dashed rgba(240, 138, 36, .5);
}
.steps li:last-child::after { display: none; }
.step-num {
  width: 72px; height: 72px; margin: 0 auto 16px; border-radius: 50%; border: 2px solid var(--orange);
  display: grid; place-items: center; font-size: 26px; font-weight: 800; color: var(--orange); background: rgba(240, 138, 36, .08);
}
.steps h4 { font-size: 17px; margin-bottom: 6px; }
.steps p { font-size: 14px; color: #b9c8d8; margin: 0; }

/* ---------- projects ---------- */
.filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.filters button {
  font: inherit; font-weight: 600; font-size: 14px; padding: 9px 20px; border-radius: 30px; cursor: pointer;
  border: 1px solid var(--border); background: #fff; color: var(--navy); transition: .2s;
}
.filters button.active, .filters button:hover { background: var(--orange); border-color: var(--orange); color: #fff; }
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3.2; cursor: pointer; box-shadow: var(--shadow); }
.project img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.project:hover img { transform: scale(1.08); }
.project-info {
  position: absolute; inset: auto 0 0 0; padding: 60px 22px 20px; color: #fff;
  background: linear-gradient(transparent, rgba(14, 42, 71, .95));
}
.project-info span { font-size: 12.5px; font-weight: 700; color: var(--orange); text-transform: uppercase; letter-spacing: .08em; }
.project-info h4 { color: #fff; font-size: 18px; margin: 4px 0 2px; }
.project-info p { margin: 0; font-size: 13.5px; color: #c9d6e4; }
.project.hide { display: none; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 300; background: rgba(5, 15, 28, .92);
  display: none; align-items: center; justify-content: center; padding: 30px;
}
.lightbox.open { display: flex; }
.lightbox img { max-height: 82vh; max-width: 100%; border-radius: 8px; }
.lightbox figcaption { color: #fff; text-align: center; margin-top: 12px; }
.lightbox button {
  position: absolute; top: 18px; right: 22px; background: none; border: 0; color: #fff; font-size: 40px; cursor: pointer; line-height: 1;
}

/* ---------- partners ---------- */
.partners { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.partner {
  display: grid; place-items: center; height: 84px; border: 1px solid var(--border); border-radius: 8px;
  font-weight: 800; font-size: 17px; color: #8a99ab; letter-spacing: .03em; transition: .25s; background: #fff; text-align: center; padding: 0 8px;
}
.partner:hover { color: var(--navy); border-color: var(--orange); }

/* ---------- testimonials ---------- */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.testi { background: #fff; padding: 30px; border-radius: var(--radius); box-shadow: var(--shadow); position: relative; }
.testi::before { content: "“"; position: absolute; top: 4px; right: 24px; font-size: 90px; color: rgba(240, 138, 36, .2); font-family: Georgia, serif; line-height: 1; }
.stars { color: var(--orange); letter-spacing: 2px; margin-bottom: 10px; }
.testi p { color: var(--muted); font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-items: center; font-weight: 700; }
.testi-author strong { display: block; color: var(--navy); }
.testi-author small { color: var(--muted); }

/* ---------- pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; align-items: stretch; }
.price-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 28px;
  display: flex; flex-direction: column; transition: .3s;
}
.price-card:hover { box-shadow: var(--shadow-lg); }
.price-card.featured { border: 2px solid var(--orange); position: relative; transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.price-card.featured::before {
  content: "Được chọn nhiều nhất"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--orange); color: #fff; font-size: 12.5px; font-weight: 700; padding: 4px 14px; border-radius: 20px; white-space: nowrap;
}
.price-card h3 { font-size: 21px; margin-bottom: 4px; }
.price-card .sub { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.price { font-size: 34px; font-weight: 800; color: var(--orange); line-height: 1.1; }
.price small { font-size: 15px; color: var(--muted); font-weight: 500; }
.price-card ul { list-style: none; padding: 0; margin: 22px 0 26px; display: grid; gap: 10px; flex: 1; }
.price-card li { padding-left: 26px; position: relative; font-size: 15px; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--orange); font-weight: 800; }

.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); background: #fff; }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--border); font-size: 15px; }
th { background: var(--navy); color: #fff; font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td:last-child { font-weight: 700; color: var(--navy); white-space: nowrap; }
.note { font-size: 14px; color: var(--muted); margin-top: 14px; }

/* estimator */
.estimator { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 36px; }
.estimator label { display: block; font-weight: 600; font-size: 14.5px; margin-bottom: 16px; color: var(--navy); }
.estimator input, .estimator select { margin-top: 6px; }
.est-result { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 30px; display: flex; flex-direction: column; justify-content: center; }
.est-result h4 { color: #ffb067; margin-bottom: 14px; font-size: 16px; text-transform: uppercase; letter-spacing: .06em; }
.est-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed rgba(255, 255, 255, .2); font-size: 15px; }
.est-total { font-size: 32px; font-weight: 800; color: var(--orange); margin-top: 16px; }
.est-result small { color: #b9c8d8; margin-top: 8px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq { background: #fff; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 12px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 54px 18px 22px; font-weight: 600; color: var(--navy); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px;
  border-radius: 50%; background: var(--orange); color: #fff; display: grid; place-items: center; font-size: 20px; transition: .25s;
}
.faq[open] summary::after { content: "−"; }
.faq p { padding: 0 22px 18px; margin: 0; color: var(--muted); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--orange); color: #fff; padding: 50px 0; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin: 0 0 4px; font-size: clamp(22px, 3vw, 30px); }
.cta-band p { margin: 0; color: #fff4e8; }
.cta-band .btn { background: var(--navy); border-color: var(--navy); }
.cta-band .btn:hover { background: #fff; color: var(--navy); border-color: #fff; }

/* ---------- team / values ---------- */
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.value { text-align: center; padding: 30px 20px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.value svg { width: 50px; height: 50px; fill: none; stroke: var(--orange); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin: 0 auto 14px; }
.value p { color: var(--muted); font-size: 14.5px; margin: 0; }
.timeline { list-style: none; padding: 0; max-width: 820px; margin: 0 auto; position: relative; }
.timeline::before { content: ""; position: absolute; left: 90px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.timeline li { display: grid; grid-template-columns: 90px 1fr; gap: 32px; padding-bottom: 30px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: 84px; top: 8px; width: 14px; height: 14px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 5px rgba(240, 138, 36, .2); }
.timeline strong { font-size: 22px; color: var(--orange); font-weight: 800; }
.timeline h4 { margin-bottom: 4px; }
.timeline p { color: var(--muted); margin: 0; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; }
.contact-cards { display: grid; gap: 16px; }
.contact-card { display: flex; gap: 16px; padding: 22px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); align-items: flex-start; }
.contact-card .ic { flex: none; width: 50px; height: 50px; border-radius: 8px; background: rgba(240, 138, 36, .12); display: grid; place-items: center; }
.contact-card svg { width: 24px; height: 24px; fill: none; stroke: var(--orange); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.contact-card h4 { margin: 0 0 2px; font-size: 16px; }
.contact-card p, .contact-card a { margin: 0; color: var(--muted); font-size: 15px; }
.contact-card a:hover { color: var(--orange); }

.form { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 36px; }
.form h3 { font-size: 24px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: block; font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 16px; }
input, select, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; font-size: 15px; color: var(--text);
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 6px; transition: .2s;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--orange); background: #fff; }
.invalid { border-color: #e5484d !important; }
.hp { position: absolute !important; left: -9999px !important; }
.form-status { margin: 14px 0 0; font-size: 14.5px; min-height: 1.4em; font-weight: 500; }
.form-status.ok { color: #1a8f4c; }
.form-status.err { color: #e5484d; }

.map { margin-top: 50px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); line-height: 0; }
.map iframe { width: 100%; height: 420px; border: 0; }

/* ---------- footer ---------- */
.footer { background: #0a1f35; color: #a9b8c9; padding-top: 70px; font-size: 15px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 50px; }
.footer h4 { color: #fff; font-size: 17px; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 36px; height: 2px; background: var(--orange); }
.footer .logo-text strong { color: #fff; }
.footer p { margin-bottom: 12px; }
.footer ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer a:hover { color: var(--orange); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact svg { flex: none; width: 18px; height: 18px; margin-top: 3px; fill: none; stroke: var(--orange); stroke-width: 2; }
.socials { display: flex; gap: 10px; margin-top: 18px; }
.socials a {
  width: 38px; height: 38px; border-radius: 50%; background: rgba(255, 255, 255, .08); display: grid; place-items: center;
  font-weight: 700; font-size: 13px; color: #fff; transition: .2s;
}
.socials a:hover { background: var(--orange); color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 20px 0; font-size: 14px; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- floating contact buttons ---------- */
.float-btns { position: fixed; left: 18px; bottom: 22px; z-index: 200; display: grid; gap: 12px; }
.float-btns a {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .25); font-weight: 800; font-size: 13px; position: relative;
}
.float-btns .call { background: #e5484d; animation: ring 1.6s infinite; }
.float-btns .zalo { background: #0068ff; }
.float-btns .call svg { width: 24px; height: 24px; fill: none; stroke: #fff; stroke-width: 2; }
@keyframes ring { 0% { box-shadow: 0 0 0 0 rgba(229, 72, 77, .6); } 70% { box-shadow: 0 0 0 16px rgba(229, 72, 77, 0); } 100% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0); } }
.to-top {
  position: fixed; right: 18px; bottom: 22px; z-index: 200; width: 46px; height: 46px; border-radius: 8px; border: 0;
  background: var(--orange); color: #fff; font-size: 22px; cursor: pointer; opacity: 0; pointer-events: none; transition: .3s;
}
.to-top.show { opacity: 1; pointer-events: auto; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
  .steps li:nth-child(3)::after { display: none; }
  .partners { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .menu-toggle { display: block; }
  .menu {
    position: absolute; top: 78px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; box-shadow: 0 14px 24px rgba(0, 0, 0, .1); padding: 8px 20px 20px; display: none;
  }
  .menu.open { display: flex; }
  .menu a { padding: 14px 4px; border-bottom: 1px solid var(--border); border-radius: 0; }
  .menu a:not(.btn)::after { display: none; }
  .menu .btn { margin: 14px 0 0; }
  .hero-badges .grid { grid-template-columns: 1fr 1fr; }
  .badge:nth-child(3) { border-left: 0; }
  .badge:nth-child(n+3) { border-top: 1px solid var(--border); }
  .split, .svc-detail, .contact-grid, .estimator { grid-template-columns: 1fr; gap: 40px; }
  .svc-detail:nth-child(even) .svc-detail-img { order: 0; }
  .services, .why-grid, .projects, .testimonials, .price-grid { grid-template-columns: 1fr 1fr; }
  .price-card.featured { transform: none; }
  .stats .grid, .values { grid-template-columns: 1fr 1fr; row-gap: 30px; }
  .split-img .year-badge { right: 12px; }
}
@media (max-width: 640px) {
  .topbar-hide { display: none !important; }
  .topbar .container { justify-content: center; }
  .nav { height: 68px; }
  .menu { top: 68px; }
  .logo img { width: 40px; height: 40px; }
  .logo-text strong { font-size: 18px; }
  .hero { min-height: 560px; background-position: 65% center; }
  .hero-content { padding: 70px 0 100px; }
  .section { padding: 64px 0; }
  .hero-badges .grid, .services, .why-grid, .projects, .testimonials, .price-grid, .values { grid-template-columns: 1fr; }
  .badge + .badge { border-left: 0; border-top: 1px solid var(--border); }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li::after { display: none; }
  .checklist { grid-template-columns: 1fr; }
  .partners { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form, .estimator { padding: 24px; }
  .form .row { grid-template-columns: 1fr; gap: 0; }
  .stats { background-attachment: scroll; }
  .stat strong { font-size: 40px; }
  .timeline::before { left: 60px; }
  .timeline li { grid-template-columns: 60px 1fr; gap: 26px; }
  .timeline li::before { left: 54px; }
  .timeline strong { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- homepage consult form band ---------- */
.consult {
  background: linear-gradient(rgba(14, 42, 71, .93), rgba(14, 42, 71, .93)), url("../img/banner-2.jpg") center/cover no-repeat;
  scroll-margin-top: 80px;
}
.consult p { color: #c9d6e4; }
.consult .form p { color: var(--muted); }
.consult .form .form-status.ok { color: #1a8f4c; }
.consult .form .form-status.err { color: #e5484d; }
.consult .form h3, .consult .contact-card h4 { color: var(--navy); }
.consult .contact-card p { color: var(--muted); }