/* ============================================================
   BASE — Reset, Global, Typography, Utilities
   ============================================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-ui);
  background: var(--paper);
  color: var(--ink-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ── Custom Cursor ── */
.cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  background: var(--vermillion);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width var(--t-fast) var(--ease-out),
              height var(--t-fast) var(--ease-out),
              background var(--t-fast);
  mix-blend-mode: multiply;
}
.cursor-ring {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(192,57,43,0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 80ms linear,
              width var(--t-base) var(--ease-out),
              height var(--t-base) var(--ease-out),
              opacity var(--t-base);
}
.cursor.hovering { width: 16px; height: 16px; background: var(--ink-900); }
.cursor-ring.hovering { width: 56px; height: 56px; border-color: var(--ink-300); }

/* ── Selection ── */
::selection {
  background: var(--vermillion);
  color: var(--white);
}

/* ── Links ── */
a { text-decoration: none; color: inherit; }

/* ── Images ── */
img { max-width: 100%; height: auto; display: block; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--ink-100); }
::-webkit-scrollbar-thumb { background: var(--ink-400); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-600); }

/* ── Typography Scale ── */
.t-display {
  font-family: var(--font-display);
  font-size: clamp(56px, 8vw, 120px);
  font-weight: 300;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}
.t-display-md {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 72px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.t-display-sm {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 50px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.t-heading {
  font-family: var(--font-ui);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.t-body { font-size: 15px; line-height: 1.75; color: var(--ink-600); }
.t-small { font-size: 13px; line-height: 1.6; color: var(--ink-500); }
.t-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-500);
}
.t-label-vermillion { color: var(--vermillion); }
.t-italic { font-style: italic; }

/* ── Containers ── */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--s-8);
}
.container-sm {
  max-width: var(--max-w-sm);
  margin-inline: auto;
  padding-inline: var(--s-8);
}

/* ── Divider ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--ink-200);
}
.divider-v {
  width: 1px;
  background: var(--ink-200);
  align-self: stretch;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--s-4) var(--s-6);
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  transition: all var(--t-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--vermillion);
  color: var(--white);
  padding: 14px 32px;
  box-shadow: 0 2px 8px rgba(192,57,43,0.25);
}
.btn-primary:hover {
  background: var(--vermillion-dark);
  box-shadow: 0 6px 20px rgba(192,57,43,0.35);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--ink-900);
  border: 1.5px solid var(--ink-300);
  padding: 13px 32px;
}
.btn-outline:hover {
  border-color: var(--ink-900);
  background: var(--ink-900);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-600);
  padding: 10px 20px;
}
.btn-ghost:hover { color: var(--ink-900); background: var(--ink-100); }

.btn-arrow {
  background: var(--ink-900);
  color: var(--white);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  padding: 0;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.btn-arrow:hover { background: var(--vermillion); transform: scale(1.08); }

/* ── Tag / Badge ── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid currentColor;
  font-weight: 500;
  white-space: nowrap;
}
.tag-ink { color: var(--ink-500); border-color: var(--ink-200); background: var(--paper); }
.tag-vermillion { color: var(--vermillion); border-color: rgba(192,57,43,0.25); background: rgba(192,57,43,0.04); }
.tag-gold { color: var(--accent-gold); border-color: rgba(184,145,58,0.28); background: rgba(184,145,58,0.05); }

/* ── Grain overlay ── */
.grain::before {
  content: '';
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.022;
  pointer-events: none;
  z-index: 9000;
  animation: grain 8s steps(10) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-2%, -3%); }
  20% { transform: translate(3%, 1%); }
  30% { transform: translate(-1%, 4%); }
  40% { transform: translate(2%, -2%); }
  50% { transform: translate(-3%, 2%); }
  60% { transform: translate(1%, -4%); }
  70% { transform: translate(-2%, 3%); }
  80% { transform: translate(4%, -1%); }
  90% { transform: translate(-1%, 2%); }
}

/* ── Animation utilities ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 560ms var(--ease-out),
              transform 560ms var(--ease-out);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in {
  opacity: 0;
  transition: opacity 560ms var(--ease-out);
}
.fade-in.visible { opacity: 1; }

.stagger-1 { transition-delay: 80ms; }
.stagger-2 { transition-delay: 160ms; }
.stagger-3 { transition-delay: 240ms; }
.stagger-4 { transition-delay: 320ms; }
.stagger-5 { transition-delay: 400ms; }
.stagger-6 { transition-delay: 480ms; }

/* ── Horizontal rule styled ── */
.rule {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  color: var(--ink-400);
}
.rule::before, .rule::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--ink-200);
}

/* ── Responsive helpers ── */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}
@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ── Custom cursor — mouse/trackpad only ── */
@media (pointer: fine) {
  body { cursor: none; }
  .btn { cursor: none; }
}