/* =========================
   adrien-m.net — site styles
   Warm, organic, editorial
   ========================= */

:root {
  /* DARK — default (ink on black) */
  --paper: #0B0A09;
  --paper-2: #121110;
  --paper-3: #1A1815;
  --ink: #F2EDE3;
  --ink-2: #CFC7B7;
  --muted: #7D7466;
  --line: rgba(242,237,227,0.14);
  --line-soft: rgba(242,237,227,0.07);
  --accent: oklch(0.78 0.08 200);        /* teal — default dark */
  --accent-2: oklch(0.70 0.06 195);
  --shadow: 0 1px 2px rgba(0,0,0,.4);

  --font-serif: 'Inter Tight', 'Helvetica Neue', 'Helvetica', Arial, sans-serif;
  --font-sans: 'Inter Tight', 'Helvetica Neue', 'Helvetica', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  /* Quiet, architectural sans for editorial side-cards (rail, blocks) —
     intentionally NOT mono, so it doesn't read as a code/data table. */
  --font-rail: 'IBM Plex Sans', 'Inter Tight', 'Helvetica Neue', sans-serif;

  --max: 1680px;
  --gutter: clamp(16px, 3vw, 48px);
  --nav-h: 72px;
}

html[data-theme="light"] {
  --paper: #F2EDE3;
  --paper-2: #EBE4D6;
  --paper-3: #E1D7C4;
  --ink: #17140F;
  --ink-2: #3D352A;
  --muted: #7A6E5E;
  --line: rgba(23,20,15,0.14);
  --line-soft: rgba(23,20,15,0.08);
  --accent: oklch(0.52 0.08 200);   /* deep teal, a bit of green */
  --accent-2: oklch(0.66 0.06 195);
}

html[data-theme="dark"] {
  --paper: #0B0A09;
  --paper-2: #121110;
  --paper-3: #1A1815;
  --ink: #F2EDE3;
  --ink-2: #CFC7B7;
  --muted: #7D7466;
  --line: rgba(242,237,227,0.14);
  --line-soft: rgba(242,237,227,0.07);
  --accent: oklch(0.78 0.08 200);   /* teal lifted for dark, carries a green tilt */
  --accent-2: oklch(0.70 0.06 195);
}

html[data-theme="sepia"] {
  --paper: #E8DCC4;
  --paper-2: #DFD0B2;
  --paper-3: #D3C19E;
  --ink: #2A1E10;
  --ink-2: #513E27;
  --muted: #8A6F47;
  --line: rgba(42,30,16,0.18);
  --line-soft: rgba(42,30,16,0.10);
  --accent: oklch(0.46 0.07 200);
  --accent-2: oklch(0.58 0.06 195);
}

/* Typography variants */
html[data-type="serif"] { --font-body: var(--font-serif); --font-display: var(--font-serif); }
html[data-type="mixed"], html:not([data-type]) { --font-body: var(--font-sans); --font-display: var(--font-serif); }
html[data-type="grotesk"] { --font-body: var(--font-sans); --font-display: var(--font-sans); }

*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body, var(--font-sans));
  font-feature-settings: "ss01", "ss02", "ss03";
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  transition: background-color .45s ease, color .45s ease;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
img, video { max-width: 100%; display: block; }

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

/* Utilities */
.serif { font-family: var(--font-serif); font-weight: 400; letter-spacing: -0.02em; }
.sans { font-family: var(--font-sans); }
.mono { font-family: var(--font-mono); font-feature-settings: "ss01"; letter-spacing: 0; }
.tag-meta { font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.italic { font-style: italic; }

/* Nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: color-mix(in oklch, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .3s ease;
}
.nav--transparent {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}
.nav--transparent .nav-link,
.nav--transparent .logo,
.nav--transparent .lang-btn,
.nav--transparent .nav-burger { color: var(--paper); }
.nav--transparent .lang-btn.is-active { color: var(--paper); border-color: var(--paper); }

.nav-inner {
  width: 100%; max-width: var(--max); margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.logo {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 20px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  display: flex; align-items: baseline; gap: 8px;
}
.logo .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; transform: translateY(-2px); }
.logo span { font-weight: 300; }
.logo em { font-style: italic; font-weight: 300; color: var(--ink-2); font-size: 14px; letter-spacing: 0; }

.nav-links {
  display: flex; justify-content: center; gap: clamp(16px, 2.2vw, 36px);
  list-style: none; padding: 0; margin: 0;
}
.nav-link {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 16px;
  color: var(--ink);
  position: relative;
  padding: 4px 2px;
  transition: color .25s ease;
}
/* hover: no underline — the letter spring IS the interaction */

/* active: quiet accent dot to the left */
.nav-link.is-active { color: var(--ink); }
.nav-link.is-active::before {
  content: '';
  position: absolute;
  left: -11px;
  top: 50%;
  width: 5px; height: 5px;
  margin-top: -2px;
  border-radius: 50%;
  background: var(--accent);
  animation: nav-dot-in .55s cubic-bezier(.2,.7,.2,1) both;
}
@keyframes nav-dot-in {
  from { opacity: 0; transform: translateX(4px) scale(.4); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

.nav-right {
  display: flex; align-items: center; justify-content: flex-end; gap: 14px;
}
.lang-switch { display: flex; align-items: center; gap: 2px; }
.lang-btn {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 6px;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all .2s ease;
}
.lang-btn:hover { color: var(--ink); }
.lang-btn.is-active { color: var(--ink); border-color: var(--line); }

.nav-burger { display: none; }

@media (max-width: 880px) {
  .nav-links, .nav-right .lang-switch { display: none; }
  .nav-inner { grid-template-columns: 1fr auto; }
  .nav-burger {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .14em;
  }
  .nav-burger .bars { width: 22px; height: 14px; position: relative; }
  .nav-burger .bars::before, .nav-burger .bars::after {
    content: ''; position: absolute; left: 0; right: 0; height: 1px; background: currentColor;
  }
  .nav-burger .bars::before { top: 4px; }
  .nav-burger .bars::after { bottom: 4px; }
}

/* Full-screen menu (mobile) */
.menu-overlay {
  position: fixed; inset: 0; z-index: 60;
  background: var(--paper);
  display: flex; flex-direction: column;
  padding: var(--nav-h) var(--gutter) var(--gutter);
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform .5s cubic-bezier(.7,.1,.2,1), visibility 0s linear .5s;
}
.menu-overlay.is-open { transform: translateY(0); visibility: visible; transition: transform .5s cubic-bezier(.7,.1,.2,1), visibility 0s linear 0s; }
.menu-overlay .close {
  position: absolute; top: 26px; right: var(--gutter);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
}
.menu-overlay ul {
  list-style: none; padding: 0; margin: auto 0;
  display: flex; flex-direction: column; gap: 12px;
}
.menu-overlay ul a {
  font-family: var(--font-serif); font-size: clamp(40px, 10vw, 96px); line-height: 1; letter-spacing: -0.03em;
  font-weight: 300; display: block;
}
.menu-overlay ul a em { font-weight: 300; font-style: italic; color: var(--accent); }
.menu-overlay .lang-row {
  display: flex; gap: 10px; padding-top: 24px; border-top: 1px solid var(--line);
}

/* Footer */
.foot {
  border-top: 1px solid var(--line);
  padding: 80px var(--gutter) 40px;
  margin-top: 120px;
  background: var(--paper-2);
}
.foot-grid {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 48px;
}
.foot h4 {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 16px; font-weight: 500;
}
.foot .mega {
  font-family: var(--font-serif); font-weight: 300; letter-spacing: -0.03em;
  font-size: clamp(36px, 5vw, 64px); line-height: 1;
}
.foot .mega em { color: var(--accent); }
.foot ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.foot ul a:hover { color: var(--accent); }
.foot-bottom {
  max-width: var(--max); margin: 80px auto 0;
  padding-top: 24px; border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  letter-spacing: .08em; text-transform: uppercase;
}
@media (max-width: 880px) {
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .foot { padding-top: 60px; margin-top: 80px; }
  .foot-bottom { flex-direction: column; gap: 8px; }
}

/* Kinetic titles */
.kinetic { display: inline-flex; flex-wrap: wrap; }
.kinetic span {
  display: inline-block;
  transition: transform .5s cubic-bezier(.5,.1,.2,1), font-style .4s;
}
.kinetic:hover span:nth-child(3n) { transform: translateY(-3px); font-style: italic; }
.kinetic:hover span:nth-child(3n+1) { transform: translateY(2px); }

/* Custom cursor removed — using native. Per-letter hover springs are in shared.jsx */
.lh-ch { transition: color .2s ease; }

/* ————— Magnet: additive transform via CSS vars, so hover animations still compose ————— */
[data-magnet] {
  transition: transform .08s linear;
  will-change: transform;
}
[data-magnet] {
  /* Each element may override/compose. Default uses just the magnet vars. */
  transform: translate3d(var(--mx, 0), var(--my, 0), 0);
}

/* ————— Click ripple ————— */
.am-ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0.32;
  background: radial-gradient(
    circle,
    color-mix(in oklch, var(--accent) 70%, transparent) 0%,
    color-mix(in oklch, var(--accent) 30%, transparent) 45%,
    transparent 70%
  );
  mix-blend-mode: screen;
  transition: transform .62s cubic-bezier(.19,.85,.24,1), opacity .62s ease-out;
  will-change: transform, opacity;
}
html[data-theme="light"] .am-ripple,
html[data-theme="sepia"] .am-ripple {
  mix-blend-mode: multiply;
  opacity: 0.22;
}
.am-ripple--on {
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
}

/* ————— Scroll reveal ————— */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform 1s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal][data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal][data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal][data-reveal-delay="3"] { transition-delay: .24s; }
[data-reveal][data-reveal-delay="4"] { transition-delay: .32s; }

/* ————— Page-transition curtain —————
 * Hidden by default. Only plays on internal-link navigation. This avoids the
 * "backgrounded-tab frozen timeline" trap where a CSS transition never runs
 * and the curtain gets stuck covering the viewport.
 */
.am-curtain {
  position: fixed; inset: 0; z-index: 10000;
  pointer-events: none;
  display: grid; grid-template-rows: 1fr 1fr;
}
.am-curtain__panel {
  background: var(--paper);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .48s cubic-bezier(.77,0,.18,1);
  will-change: transform;
}
.am-curtain__panel:last-child { transform-origin: bottom center; }

/* IN — cover the screen before navigation. No OUT on page load; see note. */
.am-curtain--in { pointer-events: auto; }
.am-curtain--in .am-curtain__panel { transform: scaleY(1); }
.am-curtain--in .am-curtain__panel:first-child { transform-origin: top center; }
.am-curtain--in .am-curtain__panel:last-child { transform-origin: bottom center; }

/* Reduced motion: no curtain, no ripple animation, no reveal delay */
@media (prefers-reduced-motion: reduce) {
  .am-curtain { display: none; }
  .am-ripple { display: none; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  [data-magnet] { transform: none !important; }
}

/* Tweaks panel */
.tweaks-panel {
  position: fixed; right: 16px; bottom: 16px; z-index: 100;
  width: 280px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  font-family: var(--font-mono); font-size: 11px;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.15);
  display: none;
}
.tweaks-panel.is-open { display: block; }
.tweaks-panel h5 { margin: 0 0 12px; font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.tweaks-panel .tk-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.tweaks-panel .tk-row:last-child { margin-bottom: 0; }
.tweaks-panel .tk-label { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .12em; }
.tweaks-panel .tk-options { display: flex; gap: 6px; }
.tweaks-panel .tk-opt {
  flex: 1; padding: 8px 6px; border: 1px solid var(--line); border-radius: 4px;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  transition: all .15s ease;
}
.tweaks-panel .tk-opt.is-active { background: var(--ink); color: var(--paper); border-color: var(--ink); }