/* ── Design tokens ── */
:root {
  --vault-black: #080808;
  --vault-dark: #0f0f0f;
  --vault-surface: #161616;
  --vault-border: #252525;
  --vault-gold: #c9a84c;
  --vault-gold-dim: #8a6f30;
  --vault-gold-bright: #e8c96a;
  --vault-text: #e8e8e8;
  --vault-muted: #6b6b6b;
  --vault-subtle: #3a3a3a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--vault-black);
  color: var(--vault-text);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ── Grid background ── */
.bg-vault-grid {
  background-image:
    linear-gradient(rgba(201,168,76,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ── Gold gradient text ── */
.text-gold-gradient {
  background: linear-gradient(135deg, #c9a84c 0%, #e8c96a 50%, #c9a84c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Terminal cursor ── */
@keyframes cursor-blink {
  0%, 45%  { opacity: 1; }
  55%, 100% { opacity: 0; }
}
.cursor {
  display: inline-block;
  animation: cursor-blink 1.1s step-end infinite;
  line-height: 1;
  vertical-align: baseline;
}

/* ── Scanlines ── */
.scanlines::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.04) 2px,
    rgba(0,0,0,0.04) 4px
  );
  pointer-events: none;
  z-index: 1;
}

/* ── Selection ── */
::selection {
  background: rgba(201,168,76,0.2);
  color: var(--vault-text);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--vault-black); }
::-webkit-scrollbar-thumb { background: var(--vault-border); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--vault-subtle); }

/* ── Focus ── */
:focus-visible {
  outline: 1px solid rgba(201,168,76,0.5);
  outline-offset: 2px;
}

/* ── CTA shimmer ── */
@keyframes shimmer-sweep {
  0%   { transform: translateX(-120%) skewX(-20deg); }
  100% { transform: translateX(220%) skewX(-20deg); }
}
.btn-shimmer { overflow: hidden; }
.btn-shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.13) 50%, transparent 100%);
  transform: translateX(-120%) skewX(-20deg);
  pointer-events: none;
}
.btn-shimmer:hover::after {
  animation: shimmer-sweep 0.65s ease forwards;
}

/* ── Scroll-triggered animations ── */
.animate-in {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.animate-in.in-view {
  opacity: 1;
  transform: translateY(0);
}
.animate-in[data-delay="1"] { transition-delay: 0.1s; }
.animate-in[data-delay="2"] { transition-delay: 0.2s; }
.animate-in[data-delay="3"] { transition-delay: 0.3s; }
.animate-in[data-delay="4"] { transition-delay: 0.4s; }

/* Stagger children */
.stagger-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-item:nth-child(1) { transition-delay: 0s; }
.stagger-item:nth-child(2) { transition-delay: 0.1s; }
.stagger-item:nth-child(3) { transition-delay: 0.2s; }
.stagger-item:nth-child(4) { transition-delay: 0.3s; }
.stagger-item:nth-child(5) { transition-delay: 0.4s; }
.stagger-item:nth-child(6) { transition-delay: 0.5s; }
.stagger-container.in-view .stagger-item {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile nav ── */
#nav-mobile { display: none; }
#nav-mobile.open { display: block; }

/* ── Checkbox ── */
input[type="checkbox"] { accent-color: var(--vault-gold); }

/* Form inputs */
input[type="text"], input[type="email"], textarea {
  -webkit-appearance: none;
  appearance: none;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; opacity: 1; }
  .btn-shimmer::after, .btn-shimmer:hover::after { animation: none; display: none; }
  .animate-in { opacity: 1; transform: none; transition: none; }
  .stagger-item { opacity: 1; transform: none; transition: none; }
}