/* ================================================================
   Mandelbrot / Fractals demo site — shared styles
   ================================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--ink-0);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ---------------- Home: header ---------------- */
.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 28px 48px 24px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
}
.site-header .brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
}
.site-header .brand b { color: var(--fg); font-weight: 700; }
.site-header .brand .sep { color: var(--fg-faint); }
.site-header .brand .acc { color: var(--accent); }
/* "calje" wordmark links to calje.eu — subtle accent on hover so it reads
   as clickable without disturbing the line at rest. */
.site-header .brand a { transition: color var(--dur-fast) var(--ease-out); }
.site-header .brand a:hover b { color: var(--accent); }
.site-header .meta {
  color: var(--fg-subtle);
  letter-spacing: 0.04em;
}

/* ---------------- Home: hero strip ---------------- */
.site-hero {
  padding: 64px 48px 40px;
  border-bottom: 1px solid var(--border);
}
.site-hero h1 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(40px, 5.5vw, 84px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  margin: 0;
  color: var(--fg);
}
.site-hero h1 .glyph {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.6em;
  vertical-align: 0.18em;
  letter-spacing: 0;
  margin-right: 0.3em;
}
.site-hero p {
  margin: 18px 0 0;
  max-width: 720px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---------------- Home: tile grid ---------------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
@media (max-width: 1100px) { .tile-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px)  { .tile-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .tile-grid { grid-template-columns: 1fr; } }

.tile {
  position: relative;
  display: block;
  aspect-ratio: 1.4 / 1;
  background: var(--ink-0);
  overflow: hidden;
  cursor: pointer;
  isolation: isolate;
  transition: transform 320ms var(--ease-out);
}
.tile__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.66) saturate(1.05);
  transition: filter 420ms var(--ease-out), transform 600ms var(--ease-out);
  z-index: 0;
}
.tile::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.55) 38%, rgba(10,10,10,0.0) 62%);
  z-index: 1;
  transition: opacity 320ms var(--ease-out);
}
.tile:hover .tile__bg { filter: brightness(0.85) saturate(1.15); transform: scale(1.04); }
.tile:hover::after   { opacity: 0.80; }

.tile__body {
  position: absolute; inset: 0;
  z-index: 2;
  padding: 22px 22px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--fg);
}
.tile__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tile__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(242,240,234,0.6);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.tile__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(242,240,234,0.22);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tile__badge.live {
  color: var(--accent);
  border-color: rgba(124,255,107,0.4);
}
.tile__badge.live::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}
/* Info "i" button — top-right corner of each tile, opens the fractal info
   dialog without following the tile's link. Same italic-i visual language as
   the .info-btn on the fractal pages, sized for the tile chrome. */
.tile__info {
  appearance: none;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(242, 240, 234, 0.28);
  color: var(--fg);
  width: 22px; height: 22px;
  border-radius: 50%;
  cursor: pointer;
  font-family: 'Times New Roman', serif;
  font-style: italic;
  font-weight: 700;
  font-size: 13px;
  line-height: 1;
  padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.tile__info:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink-0);
}
.tile__name {
  font-family: var(--font-sans);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 8px;
}
.tile__desc {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: rgba(242,240,234,0.78);
  margin: 0;
  max-width: 38ch;
  text-wrap: pretty;
}
.tile__arrow {
  position: absolute;
  bottom: 22px; right: 22px;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(242,240,234,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: background var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
  z-index: 2;
}
.tile:hover .tile__arrow {
  background: var(--accent);
  color: var(--ink-0);
  border-color: var(--accent);
  transform: translateX(4px);
}

.site-footer {
  padding: 24px 48px 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer .acc { color: var(--accent); }

/* ================================================================
   Fractal.html — viewer
   ================================================================ */
.viewer {
  position: fixed;
  inset: 0;
  background: #000;
  overflow: hidden;
}
.viewer__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: #000;
  transition: filter 320ms var(--ease-out);
}
.viewer__scanlines {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,0) 0 1px, rgba(0,0,0,0.18) 1px 2px);
  mix-blend-mode: multiply;
  opacity: 0.3;
  pointer-events: none;
}

/* menu handle — always visible button */
.menu-handle {
  position: fixed;
  top: 20px;
  left: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(10,10,10,0.78);
  border: 1px solid var(--border);
  color: var(--fg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(6px);
  z-index: 10;
  transition: background var(--dur-fast) var(--ease-out);
}
.menu-handle:hover { background: rgba(20,20,20,0.92); }

/* menu panel */
.menu {
  position: fixed;
  top: 20px;
  left: 72px;
  width: 360px;
  background: rgba(10,10,10,0.84);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 12px;
  z-index: 9;
  transform-origin: top left;
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}
.menu.hidden {
  opacity: 0;
  transform: scale(0.96) translateX(-4px);
  pointer-events: none;
}
.menu__head {
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--border);
}
.menu__crumbs {
  font-size: 10px;
  color: var(--fg-subtle);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.menu__crumbs a { color: var(--accent); }
.menu__title {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  margin: 6px 0 0;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.menu__desc {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--fg-muted);
}
.menu__formula {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  padding: 6px 8px;
  background: var(--ink-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  display: inline-block;
}

.menu__section {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.menu__section:last-child { border-bottom: none; }

.menu__row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}
.menu__row .label {
  color: var(--fg-subtle);
  min-width: 60px;
}

/* pill control */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  background: var(--ink-1);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}
.pill:hover { background: var(--ink-2); }
.pill.full  { flex: 1; justify-content: space-between; }
.pill.accent { background: var(--accent); color: var(--ink-0); border-color: var(--accent); }
.pill.danger { color: var(--glitch-red); border-color: rgba(255,61,90,0.35); }

.swatches {
  display: flex;
  gap: 6px;
}
.swatch {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border);
  cursor: pointer;
  position: relative;
}
.swatch.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 0 3px rgba(124,255,107,0.2);
}

.key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 3px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--fg);
}
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
  font-size: 11px;
  color: var(--fg-subtle);
}
.legend span { color: var(--fg-muted); }
.legend .sep { color: var(--fg-faint); }

/* dropdown menu (places + palette) */
.dropdown {
  position: relative;
}
.dropdown__btn {
  display: flex; align-items: center;
  gap: 10px;
  width: 100%;
  height: 32px;
  padding: 0 10px;
  background: var(--ink-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
}
.dropdown__btn .chev { margin-left: auto; color: var(--fg-subtle); }
.dropdown__menu {
  position: absolute;
  left: 0; right: 0;
  top: calc(100% + 4px);
  background: rgba(18,18,18,0.98);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  z-index: 11;
  opacity: 0;
  transform: scale(0.97) translateY(-4px);
  transform-origin: top center;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.dropdown.open .dropdown__menu {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}
.dropdown__item {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--fg);
  cursor: pointer;
}
.dropdown__item:hover { background: var(--ink-2); }
.dropdown__item.active { background: var(--ink-2); color: var(--accent); }
.dropdown__item .meta { color: var(--fg-subtle); font-size: 10px; }

/* tooltip / toast */
.toast {
  position: fixed;
  left: 50%; bottom: 28px;
  transform: translateX(-50%);
  padding: 8px 14px;
  background: rgba(10,10,10,0.88);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 12px;
  z-index: 12;
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* small "interactive" CTA when on a live fractal */
.cta-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.cta-row .pill { height: 28px; }
.cta-row .pill.primary {
  background: var(--accent); color: var(--ink-0); border-color: var(--accent);
}