* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --navy: #101d2e;
  --navy2: #16283f;
  --amber: #f5a524;
  --ink: #22303f;
  --muted: #5c6b7a;
  --line: #e3e9ef;
  --bg: #ffffff;
  --bg2: #f5f8fb;
}
body { font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.6; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { line-height: 1.25; }

/* Header */
header { background: var(--navy); color: #fff; position: sticky; top: 0; z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: 1px; }
.logo span { color: var(--amber); }
.nav nav { display: flex; align-items: center; }
.nav a { color: #cdd8e4; text-decoration: none; margin-left: 22px; font-size: 14px; }
.nav a:hover { color: #fff; }
.nav a.cta { background: var(--amber); color: var(--navy); padding: 9px 18px; border-radius: 6px; font-weight: 700; }
.langsel { background: transparent; color: #cdd8e4; border: 1px solid #40566e; border-radius: 6px; padding: 6px 8px; font-size: 13px; margin-left: 20px; cursor: pointer; }
.langsel option { color: var(--ink); background: #fff; }

.burger { display: none; background: transparent; border: 1px solid #40566e; border-radius: 6px; width: 40px; height: 36px; margin-left: 12px; cursor: pointer; color: #fff; font-size: 18px; line-height: 1; }
.mnav { display: none; }

/* Hero */
.hero { background: linear-gradient(160deg, var(--navy) 0%, var(--navy2) 60%, #1d3a5f 100%); color: #fff; padding: 88px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 42px; margin-bottom: 18px; }
.hero h1 em { color: var(--amber); font-style: normal; }
.hero p { color: #b9c7d6; font-size: 17px; margin-bottom: 28px; max-width: 500px; }
.btn { display: inline-block; background: var(--amber); color: var(--navy); font-weight: 700; padding: 14px 28px; border-radius: 8px; text-decoration: none; font-size: 16px; border: none; cursor: pointer; }
.btn.ghost { background: transparent; color: #fff; border: 1px solid #40566e; margin-left: 12px; }
.hero-ph { background: #223954; border: 1px dashed #40566e; border-radius: 12px; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; color: #7f93a8; font-size: 14px; text-align: center; padding: 20px; }

/* Stats */
.stats { background: #fff; border-bottom: 1px solid var(--line); }
.stats .wrap { display: grid; grid-template-columns: repeat(6, 1fr); text-align: center; }
.stat { padding: 30px 10px; }
.stat b { display: block; font-size: 32px; color: var(--navy); }
.stat span { font-size: 13px; color: var(--muted); }

section { padding: 72px 0; }
.kicker { color: var(--amber); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 1.5px; }
.sec-title { font-size: 32px; color: var(--navy); margin: 8px 0 14px; }
.sec-sub { color: var(--muted); max-width: 640px; margin-bottom: 40px; }

/* Services */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.card .ico { width: 44px; height: 44px; border-radius: 10px; background: var(--navy); color: var(--amber); display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 16px; }
.card h3 { font-size: 17px; color: var(--navy); margin-bottom: 8px; }
.card p { font-size: 13.5px; color: var(--muted); }

/* Materials */
.alt { background: var(--bg2); }
.mats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.mat { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 20px; }
.mat b { color: var(--navy); display: block; margin-bottom: 4px; }
.mat span { font-size: 13px; color: var(--muted); }

/* Filament wholesale */
.filament { background: linear-gradient(160deg, #1d3a5f 0%, var(--navy2) 100%); color: #fff; }
.filament .sec-title { color: #fff; }
.filament .sec-sub { color: #b9c7d6; }
.filament .wrap-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.filament ul { list-style: none; }
.filament li { padding: 9px 0; color: #dde6ef; font-size: 15.5px; }
.filament li::before { content: "▸"; color: var(--amber); font-weight: 800; margin-right: 12px; }
.filament .hero-ph { aspect-ratio: 1/1; }

/* Applications */
.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.app { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.app .shot { border: none; border-bottom: 1px dashed #c3ceda; border-radius: 0; }
.app h3 { font-size: 16px; color: var(--navy); margin: 14px 18px 4px; }
.app p { font-size: 13px; color: var(--muted); margin: 0 18px 16px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; color: var(--navy); padding: 16px 30px 16px 0; font-size: 16px; list-style: none; position: relative; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--amber); font-size: 22px; }
.faq details[open] summary::after { content: "–"; }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { color: var(--muted); padding: 0 0 18px; max-width: 760px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; margin-top: 20px; }
.step { position: relative; padding: 24px; border: 1px solid var(--line); border-radius: 12px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; top: -18px; left: 20px; width: 36px; height: 36px; border-radius: 50%; background: var(--amber); color: var(--navy); font-weight: 800; display: flex; align-items: center; justify-content: center; }
.step h3 { font-size: 16px; color: var(--navy); margin: 10px 0 6px; }
.step p { font-size: 13.5px; color: var(--muted); }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.shot { aspect-ratio: 4/3; background: var(--bg2); border: 1px dashed #c3ceda; border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #93a3b4; font-size: 13px; text-align: center; padding: 12px; }

/* Inquiry */
.inquiry { background: var(--navy); color: #fff; }
.inquiry .wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; }
.inquiry h2 { color: #fff; }
.inquiry .sec-sub { color: #b9c7d6; }
.inquiry ul { list-style: none; margin-top: 20px; }
.inquiry li { padding: 8px 0; color: #cdd8e4; font-size: 15px; }
.inquiry li::before { content: "✓"; color: var(--amber); font-weight: 800; margin-right: 10px; }
form { background: #fff; border-radius: 12px; padding: 30px; }
form label { display: block; font-size: 13px; font-weight: 700; color: var(--navy); margin: 14px 0 6px; }
form input, form textarea, form select { width: 100%; border: 1px solid #ccd6e0; border-radius: 8px; padding: 11px 12px; font-size: 14px; font-family: inherit; color: var(--ink); background: #fff; }
form textarea { min-height: 96px; resize: vertical; }
form .btn { width: 100%; margin-top: 20px; }
.form-note { font-size: 12px; color: var(--muted); text-align: center; margin-top: 10px; }

footer { background: #0b1522; color: #8296ab; padding: 36px 0; font-size: 13.5px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 800px) {
  .hero .wrap, .inquiry .wrap, .filament .wrap-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav a:not(.cta) { display: none; }
  .langsel { margin-left: 10px; }
  .burger { display: block; }
  .mnav { display: none; flex-direction: column; background: var(--navy2); border-top: 1px solid #2a3f57; position: absolute; top: 64px; left: 0; right: 0; }
  .mnav.open { display: flex; }
  .mnav a { color: #cdd8e4; text-decoration: none; padding: 14px 24px; border-bottom: 1px solid #24374b; font-size: 15px; }
  .mnav a:active { background: #1d3350; }
}