/* DREV.SPACE — Apple Design Foundation + iOS 26 Liquid Glass
   Replaces style.css visual layer for retrofitted pages.
   Source tokens: assets/apple-tokens.css (Apple system) extended for dark/light + LG. */

@import url('apple-tokens.css');

:root {
  color-scheme: light dark;

  /* iOS 26 Liquid Glass — tunable via tweaks --lg-blur / --lg-sat / --lg-tint */
  --lg-blur: 22px;
  --lg-sat: 180%;
  --lg-tint: rgba(255, 255, 255, 0.55);
  --lg-edge: rgba(255, 255, 255, 0.65);
  --lg-shadow: 0 12px 40px rgba(0, 0, 0, 0.18), 0 1px 0 rgba(255,255,255,0.6) inset;

  /* Page accent (tintable per page via [data-accent]) */
  --accent: var(--color-primary);
  --accent-on-dark: var(--color-primary-on-dark);

  /* Surfaces */
  --bg: var(--color-canvas);
  --bg-alt: var(--color-canvas-parchment);
  --fg: var(--color-ink);
  --fg-muted: var(--color-ink-muted-80);
  --fg-faint: var(--color-ink-muted-48);
  --hairline: var(--color-hairline);
  --card-fill: #ffffff;
}

[data-theme="dark"], :root[data-theme="dark"] {
  --bg: #000000;
  --bg-alt: #0b0b0d;
  --fg: #f5f5f7;
  --fg-muted: #c7c7cc;
  --fg-faint: #86868b;
  --hairline: rgba(255,255,255,0.08);
  --card-fill: #1c1c1e;
  --lg-tint: rgba(28, 28, 30, 0.58);
  --lg-edge: rgba(255, 255, 255, 0.10);
  --lg-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255,255,255,0.06) inset;
  --accent: var(--color-primary-on-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --bg-alt: #0b0b0d;
    --fg: #f5f5f7;
    --fg-muted: #c7c7cc;
    --fg-faint: #86868b;
    --hairline: rgba(255,255,255,0.08);
    --card-fill: #1c1c1e;
    --lg-tint: rgba(28, 28, 30, 0.58);
    --lg-edge: rgba(255, 255, 255, 0.10);
    --lg-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255,255,255,0.06) inset;
    --accent: var(--color-primary-on-dark);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-text);
  font-size: var(--t-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: color-mix(in oklab, var(--accent) 30%, transparent); }

/* =================== Typography helpers =================== */
.eyebrow {
  font-family: var(--font-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-transform: none;
}
.headline {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  text-wrap: balance;
}
.headline.xl { font-size: clamp(48px, 7.5vw, 96px); letter-spacing: -0.035em; }
.headline.lg { font-size: clamp(36px, 4.6vw, 64px); letter-spacing: -0.028em; }
.headline.md { font-size: clamp(28px, 3vw, 40px); letter-spacing: -0.022em; }
.lead {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.6vw, 24px);
  font-weight: 400;
  line-height: 1.4;
  color: var(--fg-muted);
  text-wrap: pretty;
  max-width: 60ch;
}

/* =================== Layout =================== */
.tile {
  position: relative;
  width: 100%;
  padding: clamp(72px, 10vw, 120px) clamp(20px, 4vw, 64px);
  isolation: isolate;
}
.tile.dark { background: #000; color: #f5f5f7; --fg: #f5f5f7; --fg-muted: #c7c7cc; --hairline: rgba(255,255,255,0.08); --accent: var(--color-primary-on-dark); }
.tile.parchment { background: var(--color-canvas-parchment); }
.tile.center { text-align: center; }
.tile-inner { max-width: 1200px; margin: 0 auto; }

/* Bento grid — iOS 26 widget rhythm */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
}
.bento-item {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background: var(--card-fill);
  border: 1px solid var(--hairline);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: var(--fg);
  text-decoration: none;
  isolation: isolate;
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.2, 1);
}
.bento-item:hover { transform: translateY(-4px); }
.bento-item:active { transform: scale(0.985); }
.bento-item.span-3 { grid-column: span 3; }
.bento-item.span-4 { grid-column: span 4; }
.bento-item.span-2 { grid-column: span 2; }
.bento-item.span-6 { grid-column: span 6; }
.bento-item.tall { min-height: 460px; }
.bento-item.dark { background: #1c1c1e; color: #f5f5f7; border-color: rgba(255,255,255,0.08); }
.bento-bg {
  position: absolute; inset: 0; z-index: -1;
  background-size: cover; background-position: center;
  transform: scale(1.02);
  transition: transform 1.2s cubic-bezier(0.2, 0.9, 0.2, 1);
}
.bento-item:hover .bento-bg { transform: scale(1.06); }
.bento-eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent); margin: 0 0 8px; }
.bento-title { font-family: var(--font-display); font-size: clamp(22px, 2vw, 32px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 8px; text-wrap: balance; }
.bento-sub { font-size: 15px; color: var(--fg-muted); margin: 0; max-width: 32ch; text-wrap: pretty; }
.bento-item.has-bg { color: #fff; }
.bento-item.has-bg .bento-sub { color: rgba(255,255,255,0.85); }
.bento-item.has-bg::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(0,0,0,0.55) 100%); }

@media (max-width: 900px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento-item.span-3, .bento-item.span-4, .bento-item.span-6 { grid-column: span 2; }
  .bento-item.span-2 { grid-column: span 1; }
}

/* =================== Buttons =================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 22px; min-height: 44px;
  font-family: var(--font-text); font-size: 17px; font-weight: 400;
  letter-spacing: -0.022em; line-height: 1; text-decoration: none;
  border-radius: var(--radius-pill); border: 1px solid transparent;
  cursor: pointer; transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.95); }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--accent); border-color: color-mix(in oklab, var(--accent) 35%, transparent); }
.btn.ghost:hover { background: color-mix(in oklab, var(--accent) 10%, transparent); }
.btn.glass { background: var(--lg-tint); color: var(--fg); border: 1px solid var(--lg-edge); backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat)); -webkit-backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat)); }
.btn.lg { padding: 16px 28px; font-size: 18px; }

/* Inline link arrow ("Learn more ›") */
.link-arrow {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--accent); font-size: 17px;
  text-decoration: none; transition: gap 0.2s;
}
.link-arrow:hover { gap: 8px; text-decoration: none; }
.link-arrow::after { content: "›"; font-size: 1.15em; line-height: 0; transform: translateY(-1px); }

/* =================== Hairline card (Apple store style) =================== */
.card {
  background: var(--card-fill);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
}

/* =================== Liquid Glass primitives =================== */
.lg-surface {
  background: var(--lg-tint);
  backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat));
  -webkit-backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat));
  border: 1px solid var(--lg-edge);
  box-shadow: var(--lg-shadow);
  border-radius: 28px;
}

/* Subtle refraction edge — pseudo highlight on top */
.lg-surface::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.18), rgba(255,255,255,0) 40%),
    linear-gradient(0deg, rgba(255,255,255,0.06), rgba(255,255,255,0) 30%);
  mix-blend-mode: overlay;
}

/* =================== Zero-Legacy Navigation Purge =================== */
.gnav, .gnav-inner, nav.gnav, header.gnav, #nav, #header-nav, .nav, .nav-inner { 
  display: none !important; 
  visibility: hidden !important; 
  opacity: 0 !important;
  pointer-events: none !important; 
  height: 0 !important;
  overflow: hidden !important;
}
body { padding-top: 0 !important; }

@media (max-width: 760px) { .gnav-links { display: none; } }




/* =================== iOS 26 Liquid Glass Dock + AI Chat =================== */
#drev-dock {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%);
  z-index: 9500;
  display: flex; align-items: center; gap: 6px;
  padding: 8px;
  border-radius: 999px;
  background: var(--lg-tint);
  border: 1px solid var(--lg-edge);
  box-shadow: var(--lg-shadow);
  backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat));
  -webkit-backdrop-filter: blur(var(--lg-blur)) saturate(var(--lg-sat));
  transition: all 0.45s cubic-bezier(0.2, 0.9, 0.2, 1);
  max-width: calc(100vw - 24px);
  isolation: isolate;
}
#drev-dock::before {
  content: ""; position: absolute; inset: 0;
  border-radius: inherit; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,0.22), rgba(255,255,255,0) 45%);
  mix-blend-mode: overlay;
}
#drev-dock.morphed {
  border-radius: 24px;
  padding: 10px;
}
.dock-link {
  display: inline-flex; align-items: center; justify-content: center;
  height: 36px; padding: 0 14px;
  font-family: var(--font-text); font-size: 13px; font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s, transform 0.18s;
  white-space: nowrap;
}
.dock-link:hover { background: color-mix(in oklab, var(--fg) 8%, transparent); }
.dock-link.active { background: var(--accent); color: #fff; }
.dock-link:active { transform: scale(0.95); }
.dock-divider { width: 1px; height: 22px; background: var(--lg-edge); margin: 0 4px; }

.dock-ai-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 14px 0 12px;
  font-size: 13px; font-weight: 500; color: var(--fg);
  border: none; background: color-mix(in oklab, var(--accent) 18%, transparent);
  border-radius: 999px; cursor: pointer;
  transition: all 0.2s;
}
.dock-ai-btn:hover { background: color-mix(in oklab, var(--accent) 30%, transparent); }
.dock-ai-btn .ai-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: aiPulse 2.4s infinite;
}
@keyframes aiPulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: 0.55; transform: scale(0.85);} }

/* AI Chat panel — Dynamic Island style expand */
#drev-ai-panel {
  position: fixed; left: 50%; bottom: 22px;
  transform: translateX(-50%) translateY(20px) scale(0.96);
  z-index: 9600;
  width: min(560px, calc(100vw - 24px));
  height: 0;
  opacity: 0;
  overflow: hidden;
  border-radius: 28px;
  background: var(--lg-tint);
  border: 1px solid var(--lg-edge);
  box-shadow: var(--lg-shadow);
  backdrop-filter: blur(calc(var(--lg-blur) + 6px)) saturate(var(--lg-sat));
  -webkit-backdrop-filter: blur(calc(var(--lg-blur) + 6px)) saturate(var(--lg-sat));
  transition: height 0.5s cubic-bezier(0.2, 0.9, 0.2, 1),
              opacity 0.35s ease,
              transform 0.5s cubic-bezier(0.2, 0.9, 0.2, 1);
  display: flex; flex-direction: column;
  pointer-events: none;
}
#drev-ai-panel.open {
  height: 480px;
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
  pointer-events: auto;
}
.ai-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--hairline); }
.ai-head h3 { margin: 0; font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.ai-head .ai-sub { font-size: 12px; color: var(--fg-faint); margin-left: 8px; }
.ai-head button { background: color-mix(in oklab, var(--fg) 8%, transparent); border: none; width: 28px; height: 28px; border-radius: 50%; color: var(--fg); cursor: pointer; font-size: 13px; }
.ai-head button:hover { background: color-mix(in oklab, var(--fg) 15%, transparent); }
.ai-body { flex: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 10px; }
.ai-msg { padding: 10px 14px; border-radius: 18px; max-width: 80%; font-size: 14.5px; line-height: 1.4; }
.ai-msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 6px; }
.ai-msg.bot { align-self: flex-start; background: color-mix(in oklab, var(--fg) 6%, transparent); color: var(--fg); border-bottom-left-radius: 6px; }
.ai-msg.thinking { font-style: italic; opacity: 0.7; }
.ai-suggestions { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 20px 12px; }
.ai-chip { font-size: 12px; padding: 6px 12px; border-radius: 999px; background: color-mix(in oklab, var(--fg) 6%, transparent); color: var(--fg-muted); border: 1px solid var(--hairline); cursor: pointer; transition: all 0.15s; }
.ai-chip:hover { background: color-mix(in oklab, var(--accent) 14%, transparent); color: var(--accent); border-color: color-mix(in oklab, var(--accent) 30%, transparent); }
.ai-input-row { display: flex; gap: 8px; padding: 12px 14px; border-top: 1px solid var(--hairline); align-items: center; }
.ai-input {
  flex: 1; background: color-mix(in oklab, var(--fg) 5%, transparent);
  border: 1px solid var(--hairline); border-radius: 999px;
  padding: 10px 16px; font-size: 14.5px; color: var(--fg);
  font-family: var(--font-text); outline: none;
  transition: border-color 0.18s, background 0.18s;
}
.ai-input:focus { border-color: color-mix(in oklab, var(--accent) 50%, transparent); background: color-mix(in oklab, var(--fg) 8%, transparent); }
.ai-send { width: 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #fff; border: none; cursor: pointer; font-size: 16px; display: flex; align-items: center; justify-content: center; }
.ai-send:hover { filter: brightness(1.1); }
.ai-send:active { transform: scale(0.95); }

@media (max-width: 760px) {
  #drev-dock { gap: 2px; padding: 6px; }
  .dock-link { padding: 0 10px; font-size: 12px; }
  .dock-divider { display: none; }
}

/* =================== Tweaks panel =================== */
#tweak-toggle { display: none; }

/* =================== Page transitions (spring) =================== */
@keyframes drev-page-in {
  from { opacity: 0; transform: translateY(12px) scale(0.992); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.drev-animate-in main, .drev-animate-in .tile {
  animation: drev-page-in 0.6s cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
.drev-animate-in .tile:nth-child(2) { animation-delay: 0.05s; }
.drev-animate-in .tile:nth-child(3) { animation-delay: 0.1s; }

/* =================== Reset originals safely =================== */
.drev-apple nav.cosmos-hud { display: none !important; } /* hide legacy hud when new dock active */