/* ============================================================
   Vinhomes Cao Xà Lá — Landing page (luxury dark-gold theme)
   ============================================================ */
:root {
    --bg: #ffffff;
    --dark: #0e1116;
    --dark-2: #161b22;
    --cream: #f7f3ec;
    --gold: #c9a24b;
    --gold-2: #e3c378;
    --gold-deep: #a07d2c;
    --text: #2a2d33;
    --muted: #6b7280;
    --line: #e7e2d6;
    --radius: 16px;
    --shadow: 0 18px 50px rgba(14,17,22,.12);
    --shadow-lg: 0 30px 80px rgba(14,17,22,.22);
    --serif: 'Cormorant Garamond', Georgia, serif;
    --sans: 'Be Vietnam Pro', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--sans);
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    font-size: 16px;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.gold { color: var(--gold); }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 860px; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; line-height: 1.2; letter-spacing: .3px; }

/* ---------- Buttons ---------- */
.btn-gold, .btn-outline-light, .btn-mini {
    display: inline-flex; align-items: center; gap: 9px; justify-content: center;
    font-family: var(--sans); font-weight: 600; cursor: pointer; border: none;
    transition: .3s; white-space: nowrap;
}
.btn-gold {
    background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
    color: #1c1606; padding: 14px 28px; border-radius: 50px; font-size: 15px;
    box-shadow: 0 12px 30px rgba(201,162,75,.35); text-transform: uppercase; letter-spacing: .5px;
}
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(201,162,75,.5); }
.btn-block { width: 100%; }
.btn-outline-light {
    background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.6);
    padding: 13px 26px; border-radius: 50px; font-size: 15px;
}
.btn-outline-light:hover { background: #fff; color: var(--dark); border-color: #fff; }
.btn-mini {
    background: var(--dark); color: #fff; padding: 9px 16px; border-radius: 50px; font-size: 13px; font-weight: 500;
}
.btn-mini:hover { background: var(--gold); color: var(--dark); }

/* ---------- Header ---------- */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    transition: .35s; padding: 14px 0;
    background: linear-gradient(180deg, rgba(14,17,22,.55), transparent);
}
.site-header.scrolled {
    background: rgba(14,17,22,.96); padding: 8px 0;
    box-shadow: 0 8px 30px rgba(0,0,0,.35); backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand-mark {
    width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--gold-2), var(--gold-deep));
    color: #1c1606; font-family: var(--serif); font-weight: 700; font-size: 16px; letter-spacing: .5px;
    box-shadow: 0 6px 16px rgba(201,162,75,.4);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; color: #fff; }
.brand-text strong { font-family: var(--serif); font-size: 19px; letter-spacing: .5px; }
.brand-text small { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold-2); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
    color: rgba(255,255,255,.9); font-size: 14.5px; font-weight: 500; padding: 8px 14px;
    border-radius: 8px; transition: .25s; position: relative;
}
.main-nav a:hover { color: var(--gold-2); }
.main-nav .nav-cta {
    background: linear-gradient(135deg, var(--gold-2), var(--gold-deep)); color: #1c1606;
    font-weight: 600; margin-left: 6px; border-radius: 50px; padding: 9px 20px;
}
.main-nav .nav-cta:hover { color: #1c1606; transform: translateY(-2px); }
.header-hotline { display: flex; align-items: center; gap: 10px; color: #fff; }
.header-hotline i { color: var(--gold-2); font-size: 22px; }
.header-hotline span { display: flex; flex-direction: column; line-height: 1.15; }
.header-hotline small { font-size: 11px; color: rgba(255,255,255,.65); }
.header-hotline strong { font-size: 17px; color: var(--gold-2); letter-spacing: .5px; font-family: var(--sans); }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 26px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 130px 0 70px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.05); animation: zoomSlow 18s ease-in-out infinite alternate; }
@keyframes zoomSlow { to { transform: scale(1.16); } }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(10,12,16,.92) 0%, rgba(10,12,16,.72) 45%, rgba(10,12,16,.35) 100%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.35fr .9fr; gap: 48px; align-items: center; }
.hero-content { color: #fff; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; background: rgba(201,162,75,.16);
    border: 1px solid rgba(201,162,75,.5); color: var(--gold-2); padding: 7px 16px; border-radius: 50px;
    font-size: 13px; font-weight: 500; letter-spacing: .5px; margin-bottom: 22px;
}
.hero-title { font-size: clamp(40px, 6vw, 70px); line-height: 1.05; text-shadow: 0 4px 30px rgba(0,0,0,.4); }
.hero-sub { font-size: clamp(16px, 2vw, 20px); color: var(--gold-2); margin: 14px 0 24px; font-weight: 300; }
.hero-points { list-style: none; margin-bottom: 28px; }
.hero-points li { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 11px; font-size: 15.5px; color: rgba(255,255,255,.92); }
.hero-points i { color: var(--gold-2); margin-top: 4px; }
.hero-stats { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-stats div {
    flex: 1; min-width: 90px; text-align: center; padding: 14px 8px;
    background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 12px; backdrop-filter: blur(4px);
}
.hero-stats strong { display: block; font-family: var(--serif); font-size: 26px; color: var(--gold-2); }
.hero-stats span { font-size: 12.5px; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: 1px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-form-card { background: #fff; border-radius: 20px; padding: 26px; box-shadow: var(--shadow-lg); border-top: 4px solid var(--gold); }
.hfc-head { text-align: center; margin-bottom: 18px; }
.hfc-head h3 { font-size: 25px; color: var(--dark); }
.hfc-head p { font-size: 13px; color: var(--muted); }
.hero-scroll { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 3; color: rgba(255,255,255,.7); font-size: 22px; animation: bounce 2s infinite; }
@keyframes bounce { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,10px); } }

/* ---------- Lead form ---------- */
.lead-form { display: flex; flex-direction: column; gap: 12px; }
.lf-row { display: flex; flex-direction: column; }
.lf-field {
    display: flex; align-items: center; gap: 10px; background: #f6f5f1; border: 1.5px solid var(--line);
    border-radius: 11px; padding: 0 14px; transition: .25s;
}
.lf-field:focus-within { border-color: var(--gold); background: #fff; box-shadow: 0 0 0 3px rgba(201,162,75,.14); }
.lf-field > i { color: var(--gold-deep); font-size: 14px; width: 16px; text-align: center; }
.lf-field input, .lf-field select, .lf-field textarea {
    flex: 1; border: none; background: transparent; outline: none; padding: 13px 0;
    font-family: var(--sans); font-size: 14.5px; color: var(--text);
}
.lf-textarea { align-items: flex-start; }
.lf-textarea > i { margin-top: 14px; }
.lf-field textarea { resize: vertical; padding-top: 13px; }
.lf-field select { cursor: pointer; }
.lf-error { color: #d64545; font-size: 12.5px; margin-top: 4px; display: none; }
.lf-error.show { display: block; }
.lf-field.invalid { border-color: #d64545; }
.lf-note { font-size: 12px; color: var(--muted); text-align: center; }
.lf-note i { color: var(--gold-deep); }
.lf-success {
    background: #e9f7ed; border: 1px solid #b7e4c7; color: #1f7a43; border-radius: 10px;
    padding: 12px 14px; font-size: 14px; display: flex; align-items: center; gap: 8px;
}
.lf-success[hidden] { display: none; }
.lead-form button[disabled] { opacity: .6; cursor: not-allowed; }

/* ---------- Sections ---------- */
.section { padding: 90px 0; }
.section-dark { background: var(--dark); color: #fff; }
.section-cream { background: var(--cream); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.eyebrow {
    display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 3px; text-transform: uppercase;
    color: var(--gold-deep); margin-bottom: 12px;
}
.section-head.light .eyebrow, .light-eyebrow { color: var(--gold-2); }
.section-head h2 { font-size: clamp(30px, 4vw, 44px); color: var(--dark); }
.section-head.light h2 { color: #fff; }
.head-line { width: 70px; height: 3px; background: linear-gradient(90deg, var(--gold-2), var(--gold-deep)); margin: 18px auto 0; border-radius: 3px; }
.section-desc { margin-top: 18px; color: var(--muted); font-size: 15.5px; }
.section-head.light .section-desc { color: rgba(255,255,255,.7); }

/* ---------- Overview ---------- */
.overview-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.overview-text p { margin-bottom: 16px; color: #4a4d54; font-size: 15.5px; }
.overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 26px; }
.ov-item { display: flex; align-items: center; gap: 13px; background: var(--cream); border-radius: 12px; padding: 14px 16px; border: 1px solid var(--line); }
.ov-item i { font-size: 20px; color: var(--gold-deep); width: 26px; text-align: center; }
.ov-item span { display: block; font-size: 12.5px; color: var(--muted); }
.ov-item strong { font-family: var(--sans); font-size: 14.5px; color: var(--dark); font-weight: 600; }
.overview-media { position: relative; }
.overview-media img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 340px; object-fit: cover; }
.overview-media .ov-img-2 { position: absolute; bottom: -34px; right: -18px; width: 52%; height: 180px; border: 5px solid #fff; }

/* ---------- Highlights ---------- */
.highlight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.highlight-card {
    background: var(--dark-2); border: 1px solid rgba(201,162,75,.18); border-radius: var(--radius);
    padding: 32px 26px; transition: .35s;
}
.highlight-card:hover { transform: translateY(-8px); border-color: var(--gold); box-shadow: 0 24px 50px rgba(0,0,0,.4); }
.hc-icon {
    width: 60px; height: 60px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(227,195,120,.18), rgba(160,125,44,.1)); border: 1px solid rgba(201,162,75,.4);
}
.hc-icon i { font-size: 24px; color: var(--gold-2); }
.highlight-card h3 { font-size: 21px; color: #fff; margin-bottom: 10px; }
.highlight-card p { color: rgba(255,255,255,.68); font-size: 14.5px; }

/* ---------- Location ---------- */
.location-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; }
.location-map img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.connect-times { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 26px; }
.ct-item { display: flex; align-items: center; gap: 14px; background: var(--cream); border-radius: 12px; padding: 14px 18px; border-left: 4px solid var(--gold); }
.ct-item strong { font-family: var(--serif); font-size: 30px; color: var(--gold-deep); }
.ct-item span { font-size: 14px; color: #4a4d54; }
.location-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.lg-item h4 { font-family: var(--sans); font-size: 16px; color: var(--dark); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.lg-item h4 i { color: var(--gold-deep); }
.lg-item ul { list-style: none; }
.lg-item li { font-size: 14px; color: var(--muted); padding: 4px 0 4px 16px; position: relative; }
.lg-item li::before { content: "•"; color: var(--gold); position: absolute; left: 0; }

/* ---------- Amenities ---------- */
.amenity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.amenity-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .35s; }
.amenity-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.ac-img { height: 220px; background-size: cover; background-position: center; transition: .6s; }
.amenity-card:hover .ac-img { transform: scale(1.08); }
.ac-body { padding: 22px 24px 26px; }
.ac-body h3 { font-size: 21px; color: var(--dark); margin-bottom: 9px; }
.ac-body p { font-size: 14px; color: var(--muted); }
.amenity-map { margin-top: 40px; }
.amenity-map img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }

/* ---------- Apartments ---------- */
.apartment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.apt-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .35s; display: flex; flex-direction: column; }
.apt-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.apt-img { position: relative; height: 215px; overflow: hidden; }
.apt-img img { width: 100%; height: 100%; object-fit: cover; transition: .6s; }
.apt-card:hover .apt-img img { transform: scale(1.08); }
.apt-area { position: absolute; top: 14px; left: 14px; background: rgba(14,17,22,.85); color: var(--gold-2); padding: 6px 14px; border-radius: 50px; font-size: 13px; font-weight: 600; }
.apt-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.apt-body h3 { font-size: 22px; color: var(--dark); margin-bottom: 7px; }
.apt-desc { font-size: 13.5px; color: var(--muted); margin-bottom: 12px; }
.apt-meta { font-size: 13px; color: #4a4d54; margin-bottom: 16px; }
.apt-meta i { color: var(--gold-deep); margin-right: 5px; }
.apt-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line); }
.apt-price small { display: block; font-size: 12px; color: var(--muted); }
.apt-price strong { font-family: var(--serif); font-size: 22px; color: var(--gold-deep); }

.price-cta {
    margin-top: 44px; background: linear-gradient(120deg, var(--dark), var(--dark-2));
    border-radius: 20px; padding: 38px 44px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
    border: 1px solid rgba(201,162,75,.3);
}
.price-cta h3 { color: #fff; font-size: 24px; margin-bottom: 8px; }
.price-cta p { color: rgba(255,255,255,.72); font-size: 14.5px; max-width: 620px; }

/* ---------- Gallery ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-item { position: relative; border-radius: var(--radius); overflow: hidden; height: 260px; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: .6s; }
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item figcaption {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 20px 16px; color: #fff; font-size: 15px; font-weight: 500;
    background: linear-gradient(transparent, rgba(0,0,0,.8));
}

/* ---------- Policy ---------- */
.policy-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 50px; }
.policy-card { background: #fff; border-radius: var(--radius); padding: 30px 24px; text-align: center; box-shadow: var(--shadow); transition: .35s; border-bottom: 3px solid transparent; }
.policy-card:hover { transform: translateY(-6px); border-bottom-color: var(--gold); }
.policy-card i { font-size: 34px; color: var(--gold-deep); margin-bottom: 14px; }
.policy-card h3 { font-size: 22px; color: var(--dark); margin-bottom: 8px; }
.policy-card p { font-size: 13.5px; color: var(--muted); }

.payment-timeline { background: #fff; border-radius: 20px; padding: 40px; box-shadow: var(--shadow); }
.pt-title { font-size: 25px; color: var(--dark); text-align: center; margin-bottom: 32px; }
.pt-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.pt-step { text-align: center; position: relative; }
.pt-step:not(:last-child)::after { content: ""; position: absolute; top: 22px; left: 60%; width: 80%; height: 2px; background: repeating-linear-gradient(90deg, var(--gold) 0 6px, transparent 6px 12px); }
.pt-num { width: 46px; height: 46px; border-radius: 50%; background: linear-gradient(135deg, var(--gold-2), var(--gold-deep)); color: #1c1606; font-family: var(--serif); font-weight: 700; font-size: 20px; display: grid; place-items: center; margin: 0 auto 14px; position: relative; z-index: 2; }
.pt-percent { display: block; font-family: var(--serif); font-size: 21px; color: var(--gold-deep); font-weight: 700; }
.pt-content strong { display: block; font-family: var(--sans); font-size: 14.5px; color: var(--dark); margin: 4px 0 6px; }
.pt-content p { font-size: 12.5px; color: var(--muted); }

/* ---------- Developer ---------- */
.developer { background: var(--cream); }
.developer-wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.dev-text p { color: #4a4d54; font-size: 15.5px; margin-bottom: 18px; }
.dev-projects { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.dev-projects span { background: #fff; border: 1px solid var(--line); padding: 7px 15px; border-radius: 50px; font-size: 13px; color: var(--dark); }
.dev-co { font-size: 13.5px; color: var(--muted); }
.dev-logo { position: relative; text-align: center; }
.dev-logo > img:first-child { max-width: 280px; margin: 0 auto 20px; }
.dev-progress { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 240px; object-fit: cover; }

/* ---------- Register ---------- */
.register-section { position: relative; padding: 100px 0; overflow: hidden; }
.register-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.register-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10,12,16,.95), rgba(10,12,16,.78)); }
.register-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr .85fr; gap: 50px; align-items: center; }
.register-text { color: #fff; }
.register-text h2 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 16px; }
.register-text > p { color: rgba(255,255,255,.8); margin-bottom: 20px; }
.register-benefits { list-style: none; margin-bottom: 28px; }
.register-benefits li { display: flex; align-items: center; gap: 11px; margin-bottom: 12px; font-size: 15.5px; color: rgba(255,255,255,.92); }
.register-benefits i { color: var(--gold-2); font-size: 18px; }
.register-hotline { display: inline-flex; align-items: center; gap: 14px; color: #fff; }
.register-hotline i { font-size: 30px; color: var(--gold-2); }
.register-hotline small { display: block; font-size: 12.5px; color: rgba(255,255,255,.65); }
.register-hotline strong { font-size: 26px; color: var(--gold-2); font-family: var(--sans); }
.register-form-card { background: #fff; border-radius: 20px; padding: 32px; box-shadow: var(--shadow-lg); border-top: 4px solid var(--gold); }
.register-form-card h3 { text-align: center; font-size: 25px; color: var(--dark); margin-bottom: 20px; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; transition: .3s; }
.faq-item[open] { border-color: var(--gold); box-shadow: var(--shadow); }
.faq-item summary { list-style: none; cursor: pointer; padding: 20px 24px; font-family: var(--serif); font-size: 19px; font-weight: 600; color: var(--dark); display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--gold-deep); transition: .3s; font-size: 15px; flex-shrink: 0; }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-answer { padding: 0 24px 20px; }
.faq-answer p { color: var(--muted); font-size: 14.5px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: rgba(255,255,255,.75); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; margin-bottom: 12px; }
.footer-addr i { color: var(--gold-2); margin-right: 6px; }
.footer-col h4 { font-family: var(--sans); font-size: 16px; color: #fff; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 9px; transition: .25s; }
.footer-col a:hover { color: var(--gold-2); }
.footer-col i { color: var(--gold-2); margin-right: 7px; width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; }
.footer-bottom p { font-size: 12.5px; color: rgba(255,255,255,.5); text-align: center; }

/* ---------- Floating contact ---------- */
.floating-contact { position: fixed; right: 18px; bottom: 22px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.fc-btn { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-size: 22px; box-shadow: 0 8px 24px rgba(0,0,0,.3); position: relative; transition: .3s; }
.fc-btn:hover { transform: scale(1.1); }
.fc-call { background: #1eaf52; }
.fc-zalo { background: #0068ff; }
.fc-form { background: linear-gradient(135deg, var(--gold-2), var(--gold-deep)); color: #1c1606; }
.fc-pulse { position: absolute; inset: 0; border-radius: 50%; background: #1eaf52; animation: pulse 1.8s infinite; z-index: -1; }
@keyframes pulse { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(2); opacity: 0; } }

.back-to-top { position: fixed; right: 20px; bottom: 92px; z-index: 880; width: 46px; height: 46px; border-radius: 50%; background: var(--dark); color: var(--gold-2); display: grid; place-items: center; opacity: 0; pointer-events: none; transition: .3s; transform: translateY(10px); }
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--gold); color: var(--dark); }

/* ---------- Toast ---------- */
.toast-success { position: fixed; top: 90px; left: 50%; transform: translateX(-50%); z-index: 1100; background: #1f7a43; color: #fff; padding: 14px 24px; border-radius: 50px; box-shadow: var(--shadow-lg); font-size: 14.5px; font-weight: 500; animation: toastIn .4s; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%,-20px); } }

/* ---------- Lead popup ---------- */
.lead-popup { position: fixed; inset: 0; z-index: 1200; display: none; align-items: center; justify-content: center; padding: 20px; }
.lead-popup.open { display: flex; }
.lp-overlay { position: absolute; inset: 0; background: rgba(10,12,16,.72); backdrop-filter: blur(3px); animation: fadeIn .3s; }
.lp-dialog { position: relative; z-index: 2; width: 100%; max-width: 760px; background: #fff; border-radius: 18px; overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; box-shadow: var(--shadow-lg); animation: popIn .4s cubic-bezier(.2,.9,.3,1.2); }
@keyframes fadeIn { from { opacity: 0; } }
@keyframes popIn { from { opacity: 0; transform: translateY(24px) scale(.96); } }
.lp-close { position: absolute; top: 12px; right: 12px; z-index: 4; width: 38px; height: 38px; border-radius: 50%; border: none; background: rgba(255,255,255,.9); color: var(--dark); font-size: 18px; cursor: pointer; display: grid; place-items: center; transition: .25s; }
.lp-close:hover { background: var(--gold); color: #fff; transform: rotate(90deg); }
.lp-banner { position: relative; background-size: cover; background-position: center; min-height: 100%; }
.lp-banner-overlay { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(10,12,16,.35), rgba(10,12,16,.85)); }
.lp-banner-text { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 24px; color: #fff; }
.lp-banner-text span { display: inline-block; background: rgba(201,162,75,.9); color: #1c1606; font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 50px; margin-bottom: 10px; }
.lp-banner-text h3 { font-size: 26px; line-height: 1.15; }
.lp-banner-text p { font-size: 14px; color: var(--gold-2); margin-top: 6px; }
.lp-body { padding: 30px 28px; }
.lp-body > h3 { font-size: 23px; color: var(--dark); text-align: center; }
.lp-sub { text-align: center; font-size: 13px; color: var(--muted); margin: 6px 0 18px; }

@media (max-width: 640px) {
    .lp-dialog { grid-template-columns: 1fr; max-width: 420px; max-height: 92vh; overflow-y: auto; }
    .lp-banner { min-height: 130px; }
    .lp-body { padding: 24px 20px; }
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .hero-grid, .overview-wrap, .location-wrap, .developer-wrap, .register-grid { grid-template-columns: 1fr; }
    .highlight-grid, .amenity-grid, .apartment-grid, .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .policy-grid { grid-template-columns: repeat(2, 1fr); }
    .pt-steps { grid-template-columns: 1fr 1fr; gap: 26px; }
    .pt-step::after { display: none; }
    .overview-media .ov-img-2 { position: static; width: 100%; margin-top: 16px; height: 200px; }
    .location-groups { grid-template-columns: 1fr 1fr; }
    .header-hotline { display: none; }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .nav-toggle { display: block; }
    .main-nav {
        position: fixed; top: 0; right: -100%; width: 78%; max-width: 320px; height: 100vh;
        background: var(--dark); flex-direction: column; align-items: stretch; padding: 90px 24px 30px;
        gap: 4px; transition: .4s; box-shadow: -10px 0 40px rgba(0,0,0,.5); z-index: 1001;
    }
    .main-nav.open { right: 0; }
    .main-nav a { padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,.08); font-size: 16px; }
    .main-nav .nav-cta { margin-top: 14px; text-align: center; }
    .hero { padding-top: 110px; min-height: auto; }
    .hero-stats div { min-width: 70px; }
    .highlight-grid, .amenity-grid, .apartment-grid, .gallery-grid, .policy-grid, .connect-times, .location-groups, .footer-grid { grid-template-columns: 1fr; }
    .pt-steps { grid-template-columns: 1fr; }
    .price-cta, .payment-timeline, .register-form-card, .hero-form-card { padding: 24px; }
    .register-section { padding: 64px 0; }
}

@media (max-width: 420px) {
    .hero-actions { flex-direction: column; }
    .hero-actions a { width: 100%; }
    .hero-stats { gap: 8px; }
    .hero-stats div { padding: 10px 4px; }
    .hero-stats strong { font-size: 20px; }
}