/* ============================================================
   Charmora City — style.css
   Palette: deep-sea ink / sea-foam teal / champagne gold / sand
   ============================================================ */

:root {
  --ink: #0a1f2d;
  --ink-2: #0e2a3c;
  --ink-3: #133850;
  --teal: #0f7c74;
  --teal-bright: #17a398;
  --foam: #9fd8d2;
  --gold: #c9a45c;
  --gold-soft: #e3cf9e;
  --sand: #f6f1e7;
  --paper: #fbfaf6;
  --white: #ffffff;
  --text: #22333f;
  --text-soft: #5b6c76;
  --line: rgba(10, 31, 45, .1);
  --line-gold: rgba(201, 164, 92, .38);
  --shadow-s: 0 2px 10px rgba(10, 31, 45, .07);
  --shadow-m: 0 10px 34px rgba(10, 31, 45, .12);
  --shadow-l: 0 24px 70px rgba(10, 31, 45, .2);
  --radius: 14px;
  --radius-l: 22px;
  --font-display: "Playfair Display", "Noto Serif JP", Georgia, serif;
  --font-body: "Be Vietnam Pro", "Noto Sans JP", -apple-system, "Segoe UI", sans-serif;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { width: min(1180px, 92vw); margin: 0 auto; }
.container-wide { width: min(1380px, 95vw); margin: 0 auto; }

/* ---------- typography helpers ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 12.5px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--teal); font-weight: 600;
}
.eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--gold); }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1.18; color: var(--ink);
  font-weight: 700; margin: 14px 0 18px;
}
.section-title em { font-style: normal; color: var(--teal); }
.section-lead { max-width: 720px; color: var(--text-soft); font-size: 17px; }

.section { padding: clamp(72px, 9vw, 120px) 0; position: relative; }
.section-dark { background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%); color: #dce8ee; }
.section-dark .section-title { color: var(--white); }
.section-dark .section-lead { color: #9db4c0; }
.section-sand { background: var(--sand); }

/* ---------- header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: background .35s ease, box-shadow .35s ease, backdrop-filter .35s ease;
}
.site-header .container-wide { display: flex; align-items: center; gap: 28px; }
.site-header.scrolled {
  background: rgba(10, 31, 45, .92);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255,255,255,.07), var(--shadow-m);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 44px; width: auto; }
.brand-name { font-family: var(--font-display); color: var(--white); font-size: 19px; letter-spacing: .06em; font-weight: 700; }

.main-nav { margin-left: auto; display: flex; gap: 26px; align-items: center; }
.main-nav a {
  color: rgba(255,255,255,.85); font-size: 13.5px; font-weight: 500; letter-spacing: .04em;
  position: relative; padding: 6px 0; white-space: nowrap;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0;
  background: var(--gold); transition: width .3s ease;
}
.main-nav a:hover::after { width: 100%; }

.lang-switch { display: flex; gap: 2px; margin-left: 8px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; padding: 3px; }
.lang-switch a {
  color: rgba(255,255,255,.75); font-size: 11.5px; font-weight: 600; letter-spacing: .08em;
  padding: 4px 10px; border-radius: 999px;
}
.lang-switch a.active { background: var(--gold); color: var(--ink); }

.header-cta {
  background: linear-gradient(135deg, var(--gold) 0%, #b8944e 100%);
  color: var(--ink); font-weight: 700; font-size: 13.5px; letter-spacing: .03em;
  padding: 11px 22px; border-radius: 999px; box-shadow: 0 6px 18px rgba(201,164,92,.35);
  transition: transform .25s ease, box-shadow .25s ease; white-space: nowrap;
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(201,164,92,.45); }

.nav-toggle { display: none; background: none; border: none; width: 40px; height: 40px; position: relative; z-index: 95; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 24px; height: 2px; background: var(--white);
  border-radius: 2px; transition: all .3s ease; position: relative; margin: 0 auto;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  color: var(--white); overflow: hidden;
  background: var(--ink);
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,31,45,.62) 0%, rgba(10,31,45,.28) 40%, rgba(10,31,45,.86) 100%);
}
.hero-inner { position: relative; z-index: 2; padding-top: calc(var(--header-h) + 4vh); }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 13px; letter-spacing: .3em; text-transform: uppercase; font-weight: 600;
  color: var(--gold-soft); margin-bottom: 22px;
}
.hero-eyebrow::before, .hero-eyebrow::after { content: ""; width: 44px; height: 1px; background: var(--gold); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(46px, 8.4vw, 96px);
  line-height: 1.03; letter-spacing: .02em; font-weight: 700;
  text-shadow: 0 8px 40px rgba(0,0,0,.35);
}
.hero-tagline {
  font-family: var(--font-display); font-style: italic;
  font-size: clamp(19px, 2.6vw, 28px); color: var(--foam);
  margin: 18px 0 14px; font-weight: 500;
}
.hero-sub { max-width: 640px; color: rgba(255,255,255,.82); font-size: 16.5px; }
.hero-ctas { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px; border-radius: 999px; font-weight: 700; font-size: 15px;
  letter-spacing: .02em; transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  border: none;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, #b8944e 100%);
  color: var(--ink); box-shadow: 0 10px 30px rgba(201,164,92,.4);
}
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(201,164,92,.5); }
.btn-ghost {
  background: rgba(255,255,255,.1); color: var(--white);
  border: 1px solid rgba(255,255,255,.4); backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,.2); transform: translateY(-3px); }
.btn-teal { background: var(--teal); color: var(--white); box-shadow: 0 10px 26px rgba(15,124,116,.35); }
.btn-teal:hover { background: var(--teal-bright); transform: translateY(-3px); }

.hero-stats {
  position: relative; z-index: 2;
  margin-top: clamp(40px, 7vh, 80px);
  border-top: 1px solid rgba(255,255,255,.2);
}
.hero-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.hero-stat { padding: 26px 10px 34px; text-align: center; border-right: 1px solid rgba(255,255,255,.14); }
.hero-stat:last-child { border-right: none; }
.hero-stat .num {
  font-family: var(--font-display); font-size: clamp(28px, 3.6vw, 44px);
  color: var(--gold-soft); font-weight: 700; line-height: 1.1;
}
.hero-stat .num small { font-size: .55em; font-weight: 600; }
.hero-stat .label { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.66); margin-top: 6px; }

.scroll-hint {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  z-index: 3; color: rgba(255,255,255,.6); font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-hint::after {
  content: ""; width: 1px; height: 42px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: drip 2s ease-in-out infinite;
}
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- overview ---------- */
.overview-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(36px, 5vw, 70px); align-items: start; }
.info-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-l);
  box-shadow: var(--shadow-m); overflow: hidden;
}
.info-card-head {
  background: linear-gradient(120deg, var(--ink) 0%, var(--ink-3) 100%);
  color: var(--white); padding: 20px 28px; display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 19px; letter-spacing: .04em;
}
.info-card-head::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }
.info-table { width: 100%; border-collapse: collapse; }
.info-table th, .info-table td { padding: 13px 28px; text-align: left; font-size: 14.5px; border-top: 1px solid var(--line); vertical-align: top; }
.info-table tr:first-child th, .info-table tr:first-child td { border-top: none; }
.info-table th { color: var(--text-soft); font-weight: 500; width: 38%; white-space: nowrap; }
.info-table td { color: var(--ink); font-weight: 600; }

.lead-points { display: grid; gap: 14px; margin-top: 26px; }
.lead-point { display: flex; gap: 14px; align-items: flex-start; }
.lead-point .dot {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%;
  background: rgba(15,124,116,.1); color: var(--teal);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800;
  margin-top: 3px;
}
.lead-point p { font-size: 15px; color: var(--text); }
.lead-point strong { color: var(--ink); }

/* ---------- location ---------- */
.loc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 4.5vw, 60px); align-items: center; }
.loc-figure { border-radius: var(--radius-l); overflow: hidden; box-shadow: var(--shadow-l); position: relative; }
.loc-figure img { width: 100%; height: 100%; object-fit: cover; }
.loc-figure figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 24px 16px;
  background: linear-gradient(0deg, rgba(10,31,45,.85), transparent);
  color: rgba(255,255,255,.85); font-size: 12.5px;
}
.loc-cards { display: grid; gap: 16px; margin-top: 28px; }
.loc-card {
  display: flex; gap: 18px; padding: 20px 22px; align-items: flex-start;
  background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--gold);
  border-radius: var(--radius); box-shadow: var(--shadow-s);
}
.loc-card .ico { font-size: 22px; line-height: 1.4; }
.loc-card h3 { font-size: 16px; color: var(--ink); margin-bottom: 4px; }
.loc-card p { font-size: 14px; color: var(--text-soft); }
.dist-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.dist-chip {
  background: var(--white); border: 1px solid var(--line-gold); color: var(--ink);
  padding: 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-s);
}
.dist-chip b { color: var(--teal); }

/* ---------- masterplan / islands ---------- */
.masterplan-figure {
  border-radius: var(--radius-l); overflow: hidden; box-shadow: var(--shadow-l);
  margin: 44px 0; position: relative;
}
.masterplan-figure img { width: 100%; }
.island-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.island-card {
  background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-l); padding: 30px 28px;
  transition: transform .35s ease, background .35s ease, border-color .35s ease;
}
.island-card:hover { transform: translateY(-6px); background: rgba(255,255,255,.08); border-color: var(--line-gold); }
.island-num {
  font-family: var(--font-display); font-size: 15px; letter-spacing: .22em;
  color: var(--gold-soft); text-transform: uppercase;
}
.island-card h3 { font-family: var(--font-display); font-size: 23px; color: var(--white); margin: 10px 0 12px; line-height: 1.3; }
.island-card p { font-size: 14.5px; color: #9db4c0; }

/* ---------- sponge city ---------- */
.sponge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 46px; }
.sponge-step {
  background: var(--white); border-radius: var(--radius-l); padding: 30px 24px;
  border-top: 3px solid var(--teal); box-shadow: var(--shadow-s);
  transition: transform .3s ease, box-shadow .3s ease;
}
.sponge-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); }
.sponge-step .step-no { font-family: var(--font-display); font-size: 15px; color: var(--gold); letter-spacing: .18em; }
.sponge-step h3 { font-size: 18px; color: var(--ink); margin: 8px 0 8px; }
.sponge-step p { font-size: 13.5px; color: var(--text-soft); }
.sponge-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 44px; }
.sponge-stat {
  text-align: center; background: linear-gradient(160deg, var(--ink) 0%, var(--ink-3) 100%);
  border-radius: var(--radius-l); padding: 30px 14px; color: var(--white);
}
.sponge-stat .num { font-family: var(--font-display); font-size: 36px; color: var(--foam); font-weight: 700; }
.sponge-stat .num small { font-size: .5em; }
.sponge-stat .label { font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.62); margin-top: 6px; }

/* ---------- products ---------- */
.product-feature {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 0;
  background: var(--white); border-radius: var(--radius-l); overflow: hidden;
  box-shadow: var(--shadow-l); margin-top: 48px;
}
.product-feature .pf-media { position: relative; min-height: 420px; }
.product-feature .pf-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.pf-badge {
  position: absolute; top: 22px; left: 22px; z-index: 2;
  background: var(--gold); color: var(--ink); font-size: 12px; font-weight: 800;
  letter-spacing: .16em; text-transform: uppercase; padding: 8px 16px; border-radius: 999px;
}
.pf-body { padding: clamp(30px, 4vw, 52px); }
.pf-body h3 { font-family: var(--font-display); font-size: clamp(26px, 3vw, 36px); color: var(--ink); line-height: 1.15; }
.pf-body .pf-sub { color: var(--teal); font-weight: 600; font-size: 14.5px; margin: 8px 0 18px; }
.pf-body > p { font-size: 15px; color: var(--text-soft); }
.pf-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; margin: 24px 0; }
.pf-spec { border-left: 2px solid var(--line-gold); padding-left: 14px; }
.pf-spec .v { font-family: var(--font-display); font-size: 21px; color: var(--ink); font-weight: 700; }
.pf-spec .k { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-soft); }
.mix-table { width: 100%; border-collapse: collapse; margin-top: 6px; font-size: 13.5px; }
.mix-table th, .mix-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.mix-table th { color: var(--text-soft); font-weight: 600; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.mix-table td b { color: var(--ink); }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 26px; }
.product-card {
  background: var(--white); border-radius: var(--radius-l); overflow: hidden;
  box-shadow: var(--shadow-s); border: 1px solid var(--line);
  transition: transform .35s ease, box-shadow .35s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-m); }
.product-card .pc-media { height: 220px; overflow: hidden; position: relative; }
.product-card .pc-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.product-card:hover .pc-media img { transform: scale(1.07); }
.pc-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.pc-body h3 { font-family: var(--font-display); font-size: 21px; color: var(--ink); }
.pc-body .pc-sub { color: var(--teal); font-size: 13px; font-weight: 700; margin: 4px 0 10px; letter-spacing: .04em; }
.pc-body p { font-size: 14px; color: var(--text-soft); flex: 1; }
.pc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.pc-tag { background: var(--sand); color: var(--ink); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px; }

/* ---------- gallery ---------- */
.gallery-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 190px; gap: 14px; margin-top: 46px;
}
.g-item { border-radius: var(--radius); overflow: hidden; position: relative; cursor: pointer; }
.g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.g-item:hover img { transform: scale(1.08); }
.g-item .cap {
  position: absolute; inset: auto 0 0 0; padding: 26px 16px 12px;
  background: linear-gradient(0deg, rgba(10,31,45,.82), transparent);
  color: var(--white); font-size: 12.5px; font-weight: 600; letter-spacing: .04em;
  opacity: 0; transform: translateY(8px); transition: all .4s ease;
}
.g-item:hover .cap { opacity: 1; transform: translateY(0); }
.g-item.tall { grid-row: span 2; }
.g-item.wide { grid-column: span 2; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(6,18,27,.94);
  display: none; align-items: center; justify-content: center; padding: 4vh 4vw;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 88vh; border-radius: 10px; box-shadow: var(--shadow-l); }
.lightbox .lb-close {
  position: absolute; top: 20px; right: 26px; background: none; border: none;
  color: var(--white); font-size: 34px; line-height: 1; opacity: .8;
}
.lightbox .lb-cap { position: absolute; bottom: 22px; left: 0; right: 0; text-align: center; color: rgba(255,255,255,.8); font-size: 13.5px; }

/* ---------- policy ---------- */
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 46px; }
.policy-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--radius-l); padding: 32px 28px; position: relative; overflow: hidden;
}
.policy-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.policy-card .big {
  font-family: var(--font-display); font-size: 42px; color: var(--gold-soft); font-weight: 700; line-height: 1.05;
}
.policy-card .big small { font-size: .45em; }
.policy-card h3 { font-size: 16.5px; color: var(--white); margin: 10px 0 8px; }
.policy-card p { font-size: 13.5px; color: #9db4c0; }
.policy-note { margin-top: 28px; font-size: 13px; color: #7e97a5; }
.bank-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.bank-chip {
  border: 1px solid rgba(255,255,255,.22); color: #cfe0e8; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: .06em; padding: 9px 20px;
}

/* ---------- timeline ---------- */
.timeline { position: relative; margin-top: 52px; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 4px; bottom: 4px; width: 2px; background: linear-gradient(180deg, var(--gold), var(--teal)); border-radius: 2px; }
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -26px; top: 6px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--paper); border: 3px solid var(--gold);
}
.tl-item .tl-date { font-size: 13px; letter-spacing: .1em; font-weight: 800; color: var(--teal); text-transform: uppercase; }
.tl-item h3 { font-size: 17.5px; color: var(--ink); margin: 4px 0 4px; }
.tl-item p { font-size: 14px; color: var(--text-soft); max-width: 640px; }

/* ---------- legal ---------- */
.legal-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.legal-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; box-shadow: var(--shadow-s);
}
.legal-item .check {
  flex: 0 0 auto; width: 28px; height: 28px; border-radius: 50%;
  background: rgba(15,124,116,.12); color: var(--teal); font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 14px; margin-top: 2px;
}
.legal-item h3 { font-size: 15px; color: var(--ink); margin-bottom: 3px; }
.legal-item p { font-size: 13px; color: var(--text-soft); }

/* ---------- why invest ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 46px; }
.why-card {
  background: var(--white); border-radius: var(--radius-l); padding: 30px 28px;
  border: 1px solid var(--line); box-shadow: var(--shadow-s);
  transition: transform .3s ease, box-shadow .3s ease;
}
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); }
.why-card .no { font-family: var(--font-display); font-size: 15px; color: var(--gold); letter-spacing: .2em; }
.why-card h3 { font-size: 17.5px; color: var(--ink); margin: 10px 0 8px; line-height: 1.4; }
.why-card p { font-size: 14px; color: var(--text-soft); }

/* ---------- faq ---------- */
.faq-list { max-width: 860px; margin: 44px auto 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; background: none; border: none; text-align: left;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 22px 6px; font-size: 16.5px; font-weight: 600; color: var(--ink); font-family: var(--font-body);
}
.faq-q .arrow { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-gold); color: var(--gold); display: flex; align-items: center; justify-content: center; transition: transform .35s ease, background .35s ease; font-size: 14px; }
.faq-item.open .arrow { transform: rotate(45deg); background: var(--gold); color: var(--ink); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .45s ease; }
.faq-a-inner { padding: 0 6px 24px; color: var(--text-soft); font-size: 15px; max-width: 780px; }

/* ---------- contact ---------- */
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 70px);
  align-items: start;
}
.contact-info h2 { font-family: var(--font-display); font-size: clamp(28px, 3.6vw, 40px); color: var(--white); line-height: 1.2; margin-bottom: 16px; }
.contact-info p { color: #9db4c0; font-size: 15.5px; max-width: 480px; }
.contact-quick { display: grid; gap: 14px; margin-top: 30px; }
.cq-item {
  display: flex; align-items: center; gap: 16px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius); padding: 16px 20px; transition: background .3s ease, transform .3s ease;
}
.cq-item:hover { background: rgba(255,255,255,.12); transform: translateX(6px); }
.cq-item .ico { width: 42px; height: 42px; border-radius: 50%; background: var(--gold); color: var(--ink); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px; }
.cq-item .t b { display: block; color: var(--white); font-size: 15.5px; }
.cq-item .t span { color: #9db4c0; font-size: 13px; }

.lead-form {
  background: var(--white); border-radius: var(--radius-l); padding: clamp(28px, 3.6vw, 44px);
  box-shadow: var(--shadow-l);
}
.lead-form h3 { font-family: var(--font-display); font-size: 24px; color: var(--ink); margin-bottom: 6px; }
.lead-form .form-sub { font-size: 13.5px; color: var(--text-soft); margin-bottom: 24px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 7px; letter-spacing: .03em; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 13px 16px; font-size: 15px; font-family: inherit; color: var(--ink);
  background: var(--paper); transition: border-color .25s ease, box-shadow .25s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--teal); box-shadow: 0 0 0 4px rgba(15,124,116,.1);
}
.form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-note { font-size: 12px; color: var(--text-soft); margin-top: 14px; text-align: center; }

/* ---------- footer ---------- */
.site-footer { background: #061420; color: #8ba4b2; padding: 64px 0 34px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; margin-bottom: 44px; }
.footer-brand img { height: 52px; margin-bottom: 16px; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; max-width: 380px; }
.site-footer h4 { color: var(--white); font-size: 14px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; }
.site-footer li { margin-bottom: 10px; }
.site-footer a:hover { color: var(--gold-soft); }
.footer-disclaimer {
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px;
  font-size: 12px; line-height: 1.8; color: #5f7886;
}
.footer-copy { margin-top: 14px; font-size: 12px; }

/* ---------- floating buttons ---------- */
.float-contact { position: fixed; right: 20px; bottom: 22px; z-index: 80; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 56px; height: 56px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; color: var(--white);
  box-shadow: 0 10px 26px rgba(0,0,0,.28);
  transition: transform .25s ease;
  position: relative;
}
.float-btn:hover { transform: scale(1.1); }
.float-btn.zalo { background: #0068ff; }
.float-btn.phone { background: var(--teal); animation: pulse 2.2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(15,124,116,.5); }
  70% { box-shadow: 0 0 0 16px rgba(15,124,116,0); }
  100% { box-shadow: 0 0 0 0 rgba(15,124,116,0); }
}

/* ---------- reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s cubic-bezier(.2,.65,.3,1), transform .8s cubic-bezier(.2,.65,.3,1); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .12s; }
.reveal-d2 { transition-delay: .24s; }
.reveal-d3 { transition-delay: .36s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .float-btn.phone { animation: none; }
  .scroll-hint::after { animation: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .main-nav a:not(.header-cta) { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav { margin-left: 0; }
  .site-header .container-wide { justify-content: space-between; }
  .mobile-menu {
    position: fixed; inset: 0; background: rgba(8,24,36,.98); z-index: 92;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
    opacity: 0; pointer-events: none; transition: opacity .35s ease;
  }
  .mobile-menu.open { opacity: 1; pointer-events: auto; }
  .mobile-menu a { color: var(--white); font-size: 19px; padding: 11px; font-weight: 600; }
  .mobile-menu .lang-row { display: flex; gap: 14px; margin-top: 18px; }
  .mobile-menu .lang-row a { font-size: 14px; color: var(--gold-soft); border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 8px 18px; }
}
@media (min-width: 1081px) { .mobile-menu { display: none; } }

@media (max-width: 900px) {
  .overview-grid, .loc-grid, .contact-wrap { grid-template-columns: 1fr; }
  .product-feature { grid-template-columns: 1fr; }
  .product-feature .pf-media { min-height: 300px; }
  .island-grid, .why-grid, .policy-grid, .product-grid, .sponge-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 170px; }
  .legal-list { grid-template-columns: 1fr; }
  .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); }
}
@media (max-width: 560px) {
  body { font-size: 15px; }
  .island-grid, .why-grid, .policy-grid, .product-grid, .sponge-grid, .sponge-stats { grid-template-columns: 1fr; }
  .form-2col { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 210px; }
  .g-item.wide { grid-column: span 1; }
  .hero-ctas .btn { width: 100%; }
  .dist-chips { gap: 8px; }
  .pf-specs { grid-template-columns: 1fr; }
}