/* ============================================================
   KJ AERIAL FILMS — Design System / Tokens
   "Capture. Create. Elevate."
   Luxury black & gold brand identity.
   ============================================================ */

:root {
  /* ---- Core palette (from the KJ logo) — vibrant black & gold ---- */
  --black: #070509;
  --ink: #0c0910;
  --ink-2: #140f1a;
  --charcoal: #1c1525;      /* warm-violet depth → makes gold pop */
  --charcoal-2: #271b30;

  --gold: #f0c64f;          /* luminous swoosh gold */
  --gold-bright: #ffe9a0;   /* champagne highlight */
  --gold-deep: #c2872a;     /* shadow gold */
  --bronze: #8a6326;
  --amber: #ffb24d;         /* warm accent */
  --ember: #ff7a3c;         /* hot accent (sparingly) */
  --silver: #c9c1d4;        /* cool warm-gray text */
  --silver-dim: #8b8398;
  --white: #fdf8ee;         /* warm white / cream */

  /* ---- Semantic ---- */
  --bg: var(--black);
  --fg: var(--white);
  --muted: var(--silver);
  --faint: var(--silver-dim);
  --line: rgba(240, 198, 79, 0.15);
  --line-strong: rgba(240, 198, 79, 0.36);
  --ok: #7bd88f;            /* status green */

  /* ---- Glass ---- */
  --glass: rgba(28, 21, 37, 0.55);
  --glass-2: rgba(39, 27, 48, 0.42);
  --glass-border: rgba(240, 198, 79, 0.18);
  --glass-blur: 16px;

  /* ---- Accent gradients ---- */
  --grad-gold: linear-gradient(120deg, var(--gold-bright) 0%, var(--gold) 36%, var(--amber) 70%, var(--gold-deep) 100%);
  --grad-gold-soft: linear-gradient(135deg, rgba(255,178,77,0.20), rgba(240,198,79,0.08));
  --grad-hero: radial-gradient(120% 120% at 50% -8%, #36240a 0%, #1a1016 40%, #0a0710 70%, #070509 100%);
  --grad-text: linear-gradient(180deg, #ffffff 0%, #ffd97a 100%);
  --grad-accent: linear-gradient(120deg, var(--amber), var(--ember));

  /* ---- Backward-compat aliases (so existing var(--cyan*) keep working) ---- */
  --cyan: var(--gold);
  --cyan-bright: var(--gold-bright);
  --cyan-deep: var(--gold-deep);
  --electric: var(--gold-deep);
  --grad-cyan: var(--grad-gold);
  --grad-cyan-soft: var(--grad-gold-soft);

  /* ---- Glow ---- */
  --glow-gold: 0 0 0 1px rgba(240,198,79,0.45), 0 0 34px rgba(255,178,77,0.34);
  --glow-cyan: var(--glow-gold);
  --glow-soft: 0 18px 50px rgba(0, 0, 0, 0.6);

  /* ---- Type ---- */
  --font-display: "Eurostile", "Bahnschrift", "DIN Alternate", "Helvetica Neue", "Arial Narrow", "Segoe UI", system-ui, sans-serif;
  --font-sans: "Inter", "SF Pro Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", "Roboto Mono", ui-monospace, "Courier New", monospace;

  --fs-eyebrow: 0.74rem;
  --tracking-wide: 0.28em;
  --tracking-wider: 0.42em;

  /* ---- Layout ---- */
  --maxw: 1280px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-sm: 10px;

  /* ---- Motion ---- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur: 0.6s;

  --nav-h: 76px;
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: 0.01em;
}

img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; }
::selection { background: rgba(216,179,92,0.34); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #0a0a0c; }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--gold-deep), var(--bronze)); border-radius: 20px; }

/* ============================================================
   Typography helpers
   ============================================================ */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; line-height: 1.04; letter-spacing: -0.01em; }
.display {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.gold-text, .cyan-text {
  background: var(--grad-gold);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.faint { color: var(--faint); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

/* ============================================================
   Layout primitives
   ============================================================ */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
section { position: relative; }
.section-pad { padding-block: clamp(64px, 11vh, 160px); }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; }

.section-head { max-width: 760px; margin-bottom: clamp(34px, 6vh, 72px); }
.section-head h2 { font-size: clamp(2rem, 5vw, 3.6rem); margin: 18px 0 16px;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.section-head p { color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.18rem); max-width: 60ch; }
.section-head.center { margin-inline: auto; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center p { margin-inline: auto; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-mono);
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  border-radius: 100px;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out), background .35s, color .35s;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--grad-gold); color: #1a1206;
  box-shadow: 0 6px 30px rgba(216,179,92,0.28);
}
.btn-primary:hover { box-shadow: 0 12px 46px rgba(216,179,92,0.5); }
.btn-ghost {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--line-strong);
  color: var(--white);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--gold); box-shadow: var(--glow-gold); color: var(--gold-bright); }
.btn svg { width: 16px; height: 16px; }

/* ============================================================
   Glass card
   ============================================================ */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius);
}

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-reveal="left"] { transform: translateX(-40px); }
[data-reveal][data-reveal="right"] { transform: translateX(40px); }
[data-reveal].in[data-reveal="left"], [data-reveal].in[data-reveal="right"] { transform: none; }
[data-stagger] > * { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
[data-stagger].in > * { opacity: 1; transform: none; }

/* Utility */
.grid { display: grid; gap: clamp(16px, 2vw, 28px); }
.hidden { display: none !important; }
.nowrap { white-space: nowrap; }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong), transparent); }
.tag {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gold); padding: 5px 11px; border: 1px solid var(--line-strong); border-radius: 100px;
  background: rgba(216,179,92,0.06);
}