/* ============================================================
   ZEE RENDERS — Global styles & design system
   Cinematic · dark · minimal · editorial
   ============================================================ */

:root {
  --bg: #080808;
  --surface: #111111;
  --surface-2: #161616;
  --text: #ffffff;
  --muted: #a0a0a0;
  --border: rgba(255, 255, 255, 0.12);
  --border-soft: rgba(255, 255, 255, 0.06);
  --accent: #d8d0c4;
  --accent-dim: rgba(216, 208, 196, 0.6);

  --font-head: 'Montserrat', 'Inter', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.7s;

  --maxw: 1600px;
  --pad: clamp(1.25rem, 5vw, 5rem);
  --nav-h: 84px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection { background: var(--accent); color: #000; }

/* ---------- Film grain overlay ---------- */
.grain {
  position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 { font-family: var(--font-head); font-weight: 600; line-height: 1.02; letter-spacing: -0.02em; }
.label {
  font-family: var(--font-head);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--accent);
}
.muted { color: var(--muted); }

.display {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.6rem, 9vw, 8.5rem);
  line-height: 0.94;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }
.section { padding-block: clamp(5rem, 12vh, 11rem); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 4rem; flex-wrap: wrap; }
.section-title { font-size: clamp(2rem, 5vw, 4rem); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.65rem;
  padding: 1.05rem 2.1rem;
  font-family: var(--font-head);
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text);
  position: relative; overflow: hidden;
  transition: color 0.5s var(--ease), border-color 0.5s var(--ease);
  z-index: 0;
}
.btn::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--accent);
  transform: translateY(101%);
  transition: transform 0.5s var(--ease);
}
.btn:hover { color: #000; border-color: var(--accent); }
.btn:hover::after { transform: translateY(0); }
.btn--solid { background: var(--accent); color: #000; border-color: var(--accent); }
.btn--solid::after { background: var(--text); }
.btn--solid:hover { color: #000; }
.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Header / Nav ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background 0.5s var(--ease), height 0.5s var(--ease), border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(8, 8, 8, 0.72);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  height: 66px;
  border-bottom-color: var(--border-soft);
}
.header .container { display: flex; align-items: center; justify-content: space-between; }
.brand {
  font-family: var(--font-head);
  font-weight: 700; font-size: 1.05rem;
  letter-spacing: 0.32em; text-transform: uppercase;
}
.brand span { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 2.6rem; }
.nav a {
  font-family: var(--font-head);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--muted);
  position: relative; padding: 0.4rem 0;
  transition: color 0.4s var(--ease);
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--accent); transition: width 0.4s var(--ease);
}
.nav a:hover, .nav a.active { color: var(--text); }
.nav a:hover::after, .nav a.active::after { width: 100%; }

.nav-cta { border: 1px solid var(--border); padding: 0.7rem 1.3rem !important; color: var(--text) !important; }
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--accent); color: #000 !important; border-color: var(--accent); }

/* Hamburger */
.burger { display: none; width: 34px; height: 22px; position: relative; z-index: 1200; }
.burger span { position: absolute; left: 0; height: 1.5px; width: 100%; background: var(--text); transition: transform 0.5s var(--ease), opacity 0.3s; }
.burger span:nth-child(1) { top: 2px; }
.burger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.burger span:nth-child(3) { bottom: 2px; }
body.menu-open .burger span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg); }

/* Mobile overlay menu */
.mobile-nav {
  position: fixed; inset: 0; z-index: 1100;
  background: var(--bg);
  display: flex; flex-direction: column; justify-content: center;
  padding: var(--pad);
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s var(--ease);
  pointer-events: none;
}
body.menu-open .mobile-nav { clip-path: inset(0 0 0 0); pointer-events: auto; }
.mobile-nav a {
  font-family: var(--font-head);
  font-size: clamp(2rem, 9vw, 4rem); font-weight: 700;
  text-transform: uppercase; letter-spacing: -0.01em;
  padding: 0.5rem 0; color: var(--muted);
  opacity: 0; transform: translateY(30px);
  transition: color 0.4s, opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
body.menu-open .mobile-nav a { opacity: 1; transform: translateY(0); }
.mobile-nav a:nth-child(1) { transition-delay: 0.15s; }
.mobile-nav a:nth-child(2) { transition-delay: 0.22s; }
.mobile-nav a:nth-child(3) { transition-delay: 0.29s; }
.mobile-nav a:nth-child(4) { transition-delay: 0.36s; }
.mobile-nav a:hover, .mobile-nav a.active { color: var(--text); }
.mobile-nav .m-foot { margin-top: 3rem; display: flex; gap: 1.5rem; }
.mobile-nav .m-foot a { font-size: 0.8rem; letter-spacing: 0.2em; opacity: 0; transition-delay: 0.45s; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border-soft); padding-block: 4rem 2.5rem; background: var(--bg); }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 3rem; margin-bottom: 4rem; }
.footer .display { font-size: clamp(2rem, 6vw, 5rem); }
.footer h4 { font-family: var(--font-head); font-size: 0.72rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.4rem; font-weight: 600; }
.footer-col a { display: block; color: var(--muted); padding: 0.35rem 0; transition: color 0.3s, padding-left 0.3s var(--ease); font-size: 0.95rem; }
.footer-col a:hover { color: var(--text); padding-left: 6px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-top: 2rem; border-top: 1px solid var(--border-soft); }
.footer-bottom p { color: var(--muted); font-size: 0.82rem; letter-spacing: 0.05em; }

/* ---------- Loading screen ---------- */
.loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader-logo { font-family: var(--font-head); font-weight: 700; letter-spacing: 0.3em; font-size: 1.2rem; text-transform: uppercase; }
.loader-logo span { color: var(--accent); }
.loader-bar { margin-top: 1.5rem; width: 220px; max-width: 60vw; height: 1px; background: var(--border); overflow: hidden; }
.loader-bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.3s linear; }
.loader-pct { margin-top: 0.8rem; font-family: var(--font-head); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--muted); }

/* ---------- Scroll indicator ---------- */
.scroll-cue { position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.7rem; z-index: 5; }
.scroll-cue span { font-family: var(--font-head); font-size: 0.62rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.scroll-cue i { width: 1px; height: 46px; background: linear-gradient(var(--accent), transparent); position: relative; overflow: hidden; }
.scroll-cue i::after { content: ''; position: absolute; top: -50%; left: 0; width: 100%; height: 50%; background: var(--accent); animation: scrollDown 2s var(--ease) infinite; }
@keyframes scrollDown { to { top: 120%; } }

/* ---------- Utility ---------- */
.center { text-align: center; }
.grid { display: grid; }
.flex { display: flex; }
.hidden { display: none !important; }

/* Toast */
.toast-wrap { position: fixed; bottom: 2rem; right: 2rem; z-index: 5000; display: flex; flex-direction: column; gap: 0.75rem; }
.toast {
  background: var(--surface); border: 1px solid var(--border);
  padding: 1rem 1.4rem; min-width: 260px; max-width: 380px;
  font-size: 0.9rem; color: var(--text);
  transform: translateX(120%); opacity: 0;
  transition: transform 0.5s var(--ease), opacity 0.5s;
  border-left: 2px solid var(--accent);
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast.err { border-left-color: #e05a5a; }
.toast.ok { border-left-color: #6cc48f; }