/* ============================================================
   Ten Years Production Laos — black & white theme (logo red accent)
   ============================================================ */
:root {
  --bg: #0a0a0a;
  --bg-2: #131313;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.10);
  --text: #f6f6f6;
  --muted: #9a9a9a;
  --accent: #e63329;            /* logo red — used sparingly */
  --accent-soft: rgba(230, 51, 41, 0.12);
  --silver: linear-gradient(180deg, #ffffff 0%, #9c9c9c 100%);
  --radius: 18px;
  --maxw: 1200px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: "Space Grotesk", sans-serif; line-height: 1.05; font-weight: 600; letter-spacing: -0.02em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.grad-text {
  background: var(--silver);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .7rem;
  font-size: .78rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: #b6b6c0; margin-bottom: 1.25rem;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--accent); display: inline-block; border-radius: 2px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .9rem 1.6rem; border-radius: 999px; font-weight: 600; font-size: .98rem;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s, color .3s;
  white-space: nowrap;
}
.btn-primary { background: #fff; color: #0b0b0d; box-shadow: 0 8px 30px rgba(0, 0, 0, .35); }
.btn-primary:hover { transform: translateY(-3px); background: #f1f1f3; box-shadow: 0 16px 44px rgba(255, 255, 255, .16); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: rgba(255,255,255,.18); backdrop-filter: blur(10px); }
.btn-ghost:hover { background: var(--surface-2); border-color: rgba(255,255,255,.35); transform: translateY(-3px); }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem; transition: background .4s, padding .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 10, 10, .82); backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border); padding: .7rem 1.5rem;
}
.nav .brand { display: flex; align-items: center; gap: .7rem; font-family: "Space Grotesk"; font-weight: 600; font-size: 1.05rem; }
.nav .brand img { width: 40px; height: 40px; border-radius: 10px; background: #fff; padding: 3px; }
.nav .brand span small { display: block; font-size: .62rem; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; font-weight: 500; }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a { font-size: .95rem; color: var(--muted); transition: color .25s; position: relative; }
.nav-links a:hover { color: var(--text); }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--accent); transition: width .3s var(--ease); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 1rem; }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { width: 24px; height: 2px; background: var(--text); transition: .3s; }

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; overflow: hidden; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; filter: contrast(1.05) saturate(1.08); }
.hero-overlay { position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(70% 70% at 70% 25%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(180deg, rgba(10,10,10,.6) 0%, rgba(10,10,10,.74) 55%, var(--bg) 100%);
}
.hero-glow { position: absolute; z-index: 1; width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.10), transparent 70%);
  filter: blur(40px); pointer-events: none; transition: transform .25s ease-out; }
.hero-inner { position: relative; z-index: 2; padding: 8rem 0 4rem; }
.hero h1 { font-size: clamp(2.8rem, 7vw, 5.6rem); margin: 0 0 1.4rem; max-width: 16ch; }
.hero p.lead { font-size: clamp(1.05rem, 2vw, 1.35rem); color: #cfcfcf; max-width: 50ch; margin-bottom: 2.4rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-tags { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 3rem; }
.hero-tags span { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem 1rem; border: 1px solid var(--border); border-radius: 999px; font-size: .85rem; color: #cfcfcf; background: var(--surface); backdrop-filter: blur(8px); transition: border-color .3s, color .3s; }
.hero-tags span:hover { border-color: var(--accent); color: #fff; }
.hero-tags svg { width: 16px; height: 16px; }
.scroll-cue { position: absolute; bottom: 1.8rem; left: 50%; transform: translateX(-50%); z-index: 2; color: var(--muted); font-size: .75rem; letter-spacing: .2em; text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: .6rem; }
.scroll-cue i { width: 1px; height: 38px; background: linear-gradient(#fff, transparent); animation: cue 1.8s infinite; }
@keyframes cue { 0%{opacity:.2; transform:scaleY(.4)} 50%{opacity:1} 100%{opacity:.2; transform:scaleY(.4)} }

/* ---------- sections ---------- */
section { position: relative; }
.section-pad { padding: 7rem 0; }
.section-head { max-width: 640px; margin-bottom: 3.5rem; }
.section-head h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); margin-bottom: 1rem; }
.section-head p { color: var(--muted); font-size: 1.08rem; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 2.5rem 0; }
.stat { text-align: center; }
.stat b { font-family: "Space Grotesk"; font-size: clamp(2rem, 5vw, 3.2rem); display: block; line-height: 1; color: #fff; }
.stat span { color: var(--muted); font-size: .9rem; letter-spacing: .04em; }

/* services */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; perspective: 1000px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 2.2rem 1.8rem; transition: transform .2s var(--ease), border-color .4s, background .4s;
  position: relative; overflow: hidden; transform-style: preserve-3d;
}
.card::after { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: var(--accent); transition: width .4s var(--ease); }
.card:hover { transform: translateY(-8px); border-color: rgba(255,255,255,.22); background: var(--surface-2); }
.card:hover::after { width: 100%; }
.card .ico { width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; background: rgba(255,255,255,.06); color: #fff; margin-bottom: 1.4rem; transition: background .4s, color .4s; }
.card:hover .ico { background: var(--accent-soft); color: var(--accent); }
.card .ico svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.3rem; margin-bottom: .6rem; }
.card p { color: var(--muted); font-size: .96rem; }

/* gallery — full colour photos, B&W frame */
.gallery { columns: 4; column-gap: 1rem; }
.gallery figure { break-inside: avoid; margin-bottom: 1rem; border-radius: 14px; overflow: hidden; cursor: pointer; position: relative; background: var(--surface); }
.gallery figure.g-hidden { display: none; }
.gallery img { width: 100%; transition: transform .6s var(--ease); display: block; }
.gallery figure::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.55)); opacity: 0; transition: opacity .35s; }
.gallery figure::after { content: "⤢"; position: absolute; z-index: 2; bottom: 12px; right: 14px; color: #fff; font-size: 1.15rem; opacity: 0; transform: translateY(6px); transition: .35s; }
.gallery figure:hover img { transform: scale(1.07); }
.gallery figure:hover { box-shadow: 0 0 0 1px rgba(255,255,255,.25); }
.gallery figure:hover::before { opacity: 1; }
.gallery figure:hover::after { opacity: 1; transform: none; }
.gallery-more { text-align: center; margin-top: 2.5rem; }
.gallery-more .btn b { color: var(--text); }
.gallery-count { display: block; margin-top: .9rem; color: var(--muted); font-size: .85rem; }

/* about */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: center; }
.about-grid .media { border-radius: var(--radius); overflow: hidden; position: relative; }
.about-grid .media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; transition: transform .6s var(--ease); }
.about-grid .media:hover img { transform: scale(1.04); }
.about-grid p { color: var(--muted); margin-bottom: 1.2rem; }
.about-list { list-style: none; margin-top: 1.5rem; display: grid; gap: .9rem; }
.about-list li { display: flex; gap: .8rem; align-items: flex-start; }
.about-list li svg { width: 22px; height: 22px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }

/* clients marquee */
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; gap: 1.5rem; width: max-content; animation: scroll 40s linear infinite; align-items: center; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee img {
  flex-shrink: 0;
  height: 92px; width: 180px; object-fit: contain;
  background: #fff; border-radius: 14px; padding: 18px 22px;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.marquee img:hover { transform: translateY(-5px); box-shadow: 0 12px 28px rgba(0,0,0,.4); }
@keyframes scroll { to { transform: translateX(-50%); } }

/* contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; }
.contact-info h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 1.2rem; }
.contact-info p { color: var(--muted); margin-bottom: 2rem; }
.contact-channels { display: grid; gap: 1rem; }
.channel { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); transition: .3s; }
.channel:hover { border-color: rgba(255,255,255,.25); transform: translateX(4px); }
.channel .ico { width: 44px; height: 44px; border-radius: 12px; background: rgba(255,255,255,.06); color: #fff; display: grid; place-items: center; flex-shrink: 0; transition: background .3s, color .3s; }
.channel:hover .ico { background: var(--accent-soft); color: var(--accent); }
.channel small { display: block; color: var(--muted); font-size: .78rem; }
.channel b { font-size: 1.02rem; font-weight: 600; }
form.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem; }
.field { margin-bottom: 1.2rem; }
.field label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .5rem; }
.field input, .field textarea {
  width: 100%; padding: .9rem 1rem; background: rgba(0,0,0,.35); border: 1px solid var(--border);
  border-radius: 12px; color: var(--text); font: inherit; font-size: .98rem; transition: border-color .25s, box-shadow .25s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field textarea { resize: vertical; min-height: 120px; }
.hp { position: absolute; left: -9999px; }
.form-msg { padding: 1rem; border-radius: 12px; font-weight: 600; margin-bottom: 1rem; display: none; }
.form-msg.ok { display: block; background: rgba(255,255,255,.08); color: #fff; border: 1px solid var(--border); }
.form-msg.err { display: block; background: var(--accent-soft); color: #ff9d97; border: 1px solid rgba(230,51,41,.4); }

/* faq */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--border); padding: 1.3rem 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.08rem; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.5rem; line-height: 1; transition: transform .3s var(--ease); flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); margin-top: .9rem; max-width: 70ch; }
.faq details p a { color: var(--text); text-decoration: underline; }

/* footer */
.footer { border-top: 1px solid var(--border); padding: 3.5rem 0 2.5rem; }
.footer-top { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.footer .brand { display: flex; align-items: center; gap: .7rem; font-family: "Space Grotesk"; font-weight: 600; }
.footer .brand img { width: 42px; border-radius: 10px; background: #fff; padding: 3px; }
.footer-soc { display: flex; gap: .8rem; }
.footer-soc a { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); display: grid; place-items: center; color: var(--muted); transition: .3s; }
.footer-soc a:hover { color: #fff; border-color: var(--accent); background: var(--accent-soft); transform: translateY(-3px); }
.footer-bottom { color: var(--muted); font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .1s; }
.reveal[data-d="2"] { transition-delay: .2s; }
.reveal[data-d="3"] { transition-delay: .3s; }

/* lightbox */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(2,2,2,.94); backdrop-filter: blur(8px); display: none; align-items: center; justify-content: center; padding: 2rem; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 12px; box-shadow: 0 30px 80px rgba(0,0,0,.7); }
.lightbox .lb-close { position: absolute; top: 1.4rem; right: 1.6rem; font-size: 2rem; color: #fff; cursor: pointer; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav-links { position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px); flex-direction: column; justify-content: center; gap: 2rem; background: rgba(10,10,10,.97); backdrop-filter: blur(20px); transform: translateX(100%); transition: transform .4s var(--ease); border-left: 1px solid var(--border); }
  .nav-links.open { transform: none; }
  .nav-links a { font-size: 1.2rem; }
  .burger { display: flex; z-index: 101; }
  .nav-cta .btn-ghost { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .gallery { columns: 2; }
}
@media (max-width: 560px) {
  .section-pad { padding: 4.5rem 0; }
  .gallery { columns: 1; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}