/* Mei Kahve — design tokens */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400;1,500;1,600&family=Inter:wght@200;300;400;500&family=JetBrains+Mono:wght@300;400&display=swap');

:root {
  /* Palette — Mei (overrides Swipeline) */
  --paper:        #f1efeb;
  --paper-2:      #e9e6df;
  --paper-warm:   #ecead4;
  --ink:          #161412;
  --ink-2:        #2a2622;
  --accent:       #854d29;        /* espresso brown */
  --accent-soft:  #b3744d;
  --accent-ink:   #f1efeb;

  /* Foregrounds */
  --fg-1:         #161412;
  --fg-2:         rgba(22, 20, 18, 0.66);
  --fg-3:         rgba(22, 20, 18, 0.42);
  --rule:         rgba(22, 20, 18, 0.12);
  --rule-strong:  rgba(22, 20, 18, 0.28);

  /* On-dark variants */
  --fg-on-dark:   #f1efeb;
  --fg-on-dark-2: rgba(241, 239, 235, 0.66);
  --fg-on-dark-3: rgba(241, 239, 235, 0.40);
  --rule-dark:    rgba(241, 239, 235, 0.18);

  /* Type families */
  --font-serif:   'Cormorant Garamond', 'Times New Roman', serif;
  --font-sans:    'Inter', 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Type scale */
  --t-xxs: 10px;
  --t-xs:  11px;
  --t-sm:  13px;
  --t-base:15px;
  --t-md:  17px;
  --t-lg:  22px;
  --t-xl:  34px;
  --t-2xl: 56px;
  --t-3xl: 88px;
  --t-4xl: 140px;
  --t-5xl: 200px;

  /* Line heights */
  --lh-tight: 0.95;
  --lh-snug:  1.15;
  --lh-body:  1.55;
  --lh-loose: 1.8;

  /* Spacing */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;
  --s-10: 128px;
  --s-11: 192px;

  /* Radii */
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 12px;
  --r-pill: 999px;

  /* Motion */
  --dur-fast: 220ms;
  --dur:      450ms;
  --dur-slow: 900ms;
  --ease:     cubic-bezier(0.22, 0.8, 0.18, 1);

  /* Grain intensity — overridable by Tweaks */
  --grain-opacity: 0.07;
}

/* Base reset / type */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html {
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: var(--t-base);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0.01em;
}

a {
  color: inherit;
  text-decoration: none;
}

img, video { display: block; max-width: 100%; }

::selection { background: var(--ink); color: var(--paper); }

/* Type primitives */
.serif       { font-family: var(--font-serif); font-weight: 400; }
.serif-italic{ font-family: var(--font-serif); font-style: italic; font-weight: 400; }
.mono        { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: var(--t-xs);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--fg-2);
}

.eyebrow-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow-mark::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 400;
  margin: 0;
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
}

.h-display {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(64px, 12vw, var(--t-4xl));
  line-height: 0.92;
  letter-spacing: -0.02em;
}
.h-display em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.h-xl {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(40px, 6vw, var(--t-2xl));
  line-height: 1.02;
  letter-spacing: -0.015em;
}
.h-xl em { font-style: italic; font-weight: 400; }

/* Grain layer */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: multiply;
  opacity: var(--grain-opacity);
}

/* Page reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1200ms var(--ease), transform 1200ms var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 260ms; }
.reveal[data-delay="4"] { transition-delay: 380ms; }
.reveal[data-delay="5"] { transition-delay: 520ms; }

/* Container */
.wrap {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 96px);
}

/* Nav */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 22px clamp(20px, 5vw, 64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--fg-on-dark);
  mix-blend-mode: difference;
  transition: color var(--dur) var(--ease);
}
.nav-mark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.18em;
}
.nav-mark sup {
  font-family: var(--font-sans);
  font-size: 9px;
  letter-spacing: 0.2em;
  font-weight: 400;
  vertical-align: top;
  margin-left: 4px;
  opacity: 0.7;
}
.nav-links {
  display: flex;
  gap: 36px;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease);
}
.nav-links a:hover { opacity: 1; }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 14px; height: 1px;
  background: currentColor;
  transform: translateX(-50%);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 14px 22px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
}
.btn .arrow { display: inline-block; transition: transform var(--dur-fast) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* Footer */
.foot {
  background: var(--ink);
  color: var(--fg-on-dark);
  padding: var(--s-9) 0 var(--s-6);
  position: relative;
}
.foot .wrap {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--s-8);
}
.foot h4 {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--fg-on-dark-3);
  margin-bottom: var(--s-4);
}
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { font-size: 14px; color: var(--fg-on-dark-2); line-height: 2.1; }
.foot li a:hover { color: var(--fg-on-dark); }
.foot-mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 64px;
  line-height: 1;
  font-weight: 300;
}
.foot-fine {
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--rule-dark);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-on-dark-3);
  letter-spacing: 0.08em;
}

@media (max-width: 900px) {
  .foot .wrap { grid-template-columns: 1fr 1fr; }
  .nav-links { gap: 18px; font-size: 10px; }
}