/* ==========================================================================
   CLIPFILE DESIGN SYSTEM — A RESEARCH TOOL IN READ-LATER CLOTHES
   Cohesive sibling of Deets, Notch, Prexy & Jottle. Built on Surfaces.swift.
   ========================================================================== */

:root {
  /* Default: Paper Ground + Terra Cotta Rust Accent */
  --color-ground: #F7F3EB;
  --color-surface: #FFFFFF;
  --color-ink: #181916;
  --color-ink-secondary: rgba(24, 25, 22, 0.65);
  --color-ink-tertiary: rgba(24, 25, 22, 0.40);
  --color-hairline: rgba(41, 42, 37, 0.14);
  --color-selection: #EFE8E1;
  --color-field-hover: #F5EFE8;
  --color-card-bg: #FAF7F0;
  
  /* Primary Accent: Terra Cotta / Rust (#8F3A2E) */
  --color-accent: #8F3A2E;
  --color-accent-rgb: 143, 58, 46;
  --color-accent-subtle: rgba(143, 58, 46, 0.08);
  --color-accent-hover: #752D23;

  /* Elevation & Glow */
  --shadow-sm: 0 2px 6px rgba(24, 25, 22, 0.04);
  --shadow-md: 0 8px 24px rgba(24, 25, 22, 0.07);
  --shadow-lg: 0 20px 48px rgba(24, 25, 22, 0.10);
  --shadow-hud: 0 24px 64px rgba(24, 25, 22, 0.14), 0 4px 12px rgba(24, 25, 22, 0.04);

  /* Fonts */
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-hud: 18px;
  --radius-card: 16px;
  --radius-pill: 9999px;
  
  --transition-theme: background-color 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                      border-color 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                      color 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                      box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-appearance="bright"] {
  --color-ground: #FFFFFF;
  --color-surface: #F8F9FA;
  --color-ink: #1A1A1C;
  --color-ink-secondary: rgba(26, 26, 28, 0.65);
  --color-ink-tertiary: rgba(26, 26, 28, 0.40);
  --color-hairline: rgba(42, 42, 44, 0.12);
  --color-selection: rgba(var(--color-accent-rgb), 0.12);
  --color-field-hover: rgba(var(--color-accent-rgb), 0.06);
  --color-card-bg: #FFFFFF;
  --shadow-hud: 0 24px 64px rgba(0, 0, 0, 0.09), 0 4px 16px rgba(0, 0, 0, 0.03);
}

[data-appearance="dark"] {
  --color-ground: #181916;
  --color-surface: #21221E;
  --color-ink: #F3EFE5;
  --color-ink-secondary: rgba(243, 239, 229, 0.65);
  --color-ink-tertiary: rgba(243, 239, 229, 0.42);
  --color-hairline: rgba(243, 239, 229, 0.15);
  --color-selection: #2A1F1D;
  --color-field-hover: #231A18;
  --color-card-bg: #1F201D;
  --color-accent: #E08B78;
  --color-accent-rgb: 224, 139, 120;
  --color-accent-hover: #EBB0A2;
  --shadow-hud: 0 28px 72px rgba(0, 0, 0, 0.55), 0 6px 20px rgba(0, 0, 0, 0.35);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background-color: var(--color-ground);
  color: var(--color-ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  transition: var(--transition-theme);
  overflow-x: hidden;
  position: relative;
}

.ambient-tint {
  position: fixed;
  top: 0; left: 0; right: 0; height: 600px;
  background: radial-gradient(circle at 50% -80px, rgba(var(--color-accent-rgb), 0.08) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header & Navigation */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background-color: rgba(var(--color-ground), 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-hairline);
  transition: var(--transition-theme);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand-group { display: flex; align-items: center; gap: 16px; }
.nav-parent-tag {
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500;
  color: var(--color-ink-tertiary); padding: 4px 10px; border-radius: var(--radius-pill);
  background-color: var(--color-field-hover); border: 1px solid var(--color-hairline);
  white-space: nowrap;
}
.nav-parent-tag:hover { color: var(--color-accent); text-decoration: none; border-color: var(--color-accent); }
.brand-lockup { display: flex; align-items: center; gap: 10px; color: var(--color-ink); text-decoration: none; }
.brand-icon { width: 38px; height: 38px; border-radius: 9px; box-shadow: var(--shadow-sm); }
.brand-name { font-family: var(--font-serif); font-size: 1.55rem; font-weight: 600; letter-spacing: -0.02em; }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-link {
  font-size: 0.92rem; font-weight: 500; color: var(--color-ink-secondary);
  padding: 6px 14px; border-radius: var(--radius-pill); transition: all 0.15s ease;
}
.nav-link:hover { color: var(--color-ink); background-color: var(--color-field-hover); text-decoration: none; }
.nav-link.is-active { color: var(--color-accent); background-color: var(--color-accent-subtle); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 14px; }

/* Quick Theme Picker */
.quick-theme-picker {
  display: flex; align-items: center; background-color: var(--color-surface);
  border: 1px solid var(--color-hairline); border-radius: var(--radius-pill); padding: 3px;
}
.quick-mode-btn {
  border: none; background: transparent; color: var(--color-ink-secondary);
  font-family: var(--font-sans); font-size: 0.78rem; font-weight: 500;
  padding: 4px 10px; border-radius: var(--radius-pill); cursor: pointer;
  display: flex; align-items: center; gap: 5px;
}
.quick-mode-btn.is-active { background-color: var(--color-ground); color: var(--color-ink); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-size: 0.95rem; font-weight: 600;
  padding: 10px 22px; border-radius: var(--radius-pill); cursor: pointer;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1); border: 1px solid transparent;
}
.btn-primary { background-color: var(--color-accent); color: #FFFFFF; }
.btn-primary:hover { background-color: var(--color-accent-hover); transform: translateY(-1px); color: #FFFFFF; text-decoration: none; }
.btn-secondary { background-color: var(--color-surface); color: var(--color-ink); border-color: var(--color-hairline); }
.btn-secondary:hover { background-color: var(--color-field-hover); text-decoration: none; }
.btn-sm { font-size: 0.82rem; padding: 6px 14px; }
.btn-lg { font-size: 1.05rem; padding: 13px 28px; }

/* Hero */
.hero-section { padding: 72px 24px 48px; text-align: center; position: relative; z-index: 1; }
.hero-container { max-width: 900px; margin: 0 auto; }
.hero-pill-badge {
  display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono);
  font-size: 0.82rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--color-accent); background-color: var(--color-accent-subtle);
  border: 1px solid rgba(var(--color-accent-rgb), 0.2); padding: 5px 16px;
  border-radius: var(--radius-pill); margin-bottom: 24px;
}
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background-color: var(--color-accent); }
.hero-title {
  font-family: var(--font-serif); font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  font-weight: 500; line-height: 1.08; letter-spacing: -0.03em; color: var(--color-ink); margin-bottom: 22px;
}
.accent-text { color: var(--color-accent); font-style: italic; }
.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.28rem); color: var(--color-ink-secondary);
  line-height: 1.6; max-width: 720px; margin: 0 auto 36px;
}
.hero-cta-group { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }

/* ==========================================================================
   CLIPFILE INTERACTIVE SIMULATOR (CAPTURE EXTENSION & READER)
   ========================================================================== */

.simulator-section { max-width: 920px; margin: 0 auto 80px; padding: 0 24px; }
.sim-window {
  background-color: var(--color-surface); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-hud); box-shadow: var(--shadow-hud); overflow: hidden;
}
.sim-browser-bar {
  background-color: var(--color-ground); border-bottom: 1px solid var(--color-hairline);
  padding: 10px 16px; display: flex; align-items: center; gap: 14px;
}
.sim-traffic-lights { display: flex; gap: 6px; }
.light { width: 11px; height: 11px; border-radius: 50%; }
.light.red { background-color: #FF5F56; }
.light.yellow { background-color: #FFBD2E; }
.light.green { background-color: #27C93F; }

.sim-address-field {
  flex: 1; background-color: var(--color-surface); border: 1px solid var(--color-hairline);
  border-radius: 8px; padding: 6px 14px; font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--color-ink-secondary); display: flex; align-items: center; justify-content: space-between;
}
.save-extension-btn {
  background-color: var(--color-accent); color: #FFFFFF; border: none;
  font-family: var(--font-sans); font-size: 0.78rem; font-weight: 600;
  padding: 5px 12px; border-radius: var(--radius-pill); cursor: pointer;
  display: flex; align-items: center; gap: 6px; transition: transform 0.15s ease;
}
.save-extension-btn:hover { transform: scale(1.03); background-color: var(--color-accent-hover); }

/* Reader View Area */
.reader-container { padding: 36px 40px; background-color: var(--color-card-bg); max-height: 480px; overflow-y: auto; }
.reader-header { margin-bottom: 24px; border-bottom: 1px solid var(--color-hairline); padding-bottom: 16px; }
.reader-kicker {
  font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--color-accent); font-weight: 600; margin-bottom: 8px;
  display: flex; align-items: center; gap: 8px;
}
.reader-folder-tag {
  background-color: var(--color-accent-subtle); border: 1px solid rgba(var(--color-accent-rgb), 0.2);
  padding: 2px 8px; border-radius: var(--radius-pill);
}
.reader-title {
  font-family: var(--font-serif); font-size: 1.85rem; font-weight: 600;
  line-height: 1.25; color: var(--color-ink); margin-bottom: 8px;
}
.reader-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--color-ink-tertiary); }
.reader-prose p { margin-bottom: 16px; font-size: 1.05rem; line-height: 1.68; color: var(--color-ink); }

/* Reader Toolbar Controls */
.reader-controls-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px; background-color: var(--color-ground); border-top: 1px solid var(--color-hairline);
  font-size: 0.8rem; font-family: var(--font-mono); color: var(--color-ink-secondary);
}

/* Metrics & Features */
.metrics-section { max-width: 1000px; margin: 0 auto 88px; padding: 0 24px; }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.metric-card {
  background-color: var(--color-card-bg); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card); padding: 24px 20px; text-align: center;
}
.metric-number { font-family: var(--font-serif); font-size: 2.5rem; font-weight: 600; color: var(--color-accent); margin-bottom: 6px; }
.metric-label { font-size: 0.88rem; font-weight: 600; margin-bottom: 4px; }
.metric-desc { font-size: 0.78rem; color: var(--color-ink-tertiary); }

.feature-section { max-width: 1100px; margin: 0 auto 96px; padding: 0 24px; }
.section-head { text-align: center; margin-bottom: 54px; }
.section-tag {
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--color-accent); font-weight: 600; display: block; margin-bottom: 10px;
}
.section-title { font-family: var(--font-serif); font-size: clamp(2rem, 3.8vw, 2.8rem); font-weight: 500; line-height: 1.15; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-box {
  background-color: var(--color-card-bg); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-card); padding: 30px 24px; display: flex; flex-direction: column; gap: 12px;
}
.feature-box h3 { font-family: var(--font-serif); font-size: 1.4rem; font-weight: 600; }
.feature-box p { font-size: 0.92rem; color: var(--color-ink-secondary); line-height: 1.55; }

/* Family Strip */
.family-strip { border-top: 1px solid var(--color-hairline); border-bottom: 1px solid var(--color-hairline); background-color: var(--color-surface); padding: 40px 24px; margin-bottom: 60px; }
.family-container { max-width: 1100px; margin: 0 auto; }
.family-title { font-family: var(--font-mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-ink-tertiary); margin-bottom: 24px; text-align: center; }
.family-links-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.family-card {
  background-color: var(--color-ground); border: 1px solid var(--color-hairline);
  border-radius: 12px; padding: 16px; text-align: center; text-decoration: none; color: var(--color-ink);
}
.family-card:hover { border-color: var(--color-accent); text-decoration: none; }
.family-card.is-current { border-color: var(--color-accent); background-color: var(--color-accent-subtle); }
.family-card-icon { width: 44px; height: 44px; border-radius: 10px; margin: 0 auto 10px; box-shadow: var(--shadow-sm); }
.family-card-num { font-family: var(--font-mono); font-size: 0.72rem; color: var(--color-accent); font-weight: 600; display: block; margin-bottom: 2px; }
.family-card-name { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; display: block; }
.family-card-tag { font-size: 0.75rem; color: var(--color-ink-tertiary); line-height: 1.3; margin-top: 4px; display: block; }

.site-footer { padding: 32px 24px 64px; text-align: center; font-size: 0.88rem; color: var(--color-ink-tertiary); }
.toast-notice {
  position: fixed; bottom: 24px; right: 24px; background-color: var(--color-surface);
  color: var(--color-ink); border: 1px solid var(--color-hairline); padding: 12px 20px;
  border-radius: var(--radius-pill); box-shadow: var(--shadow-lg); font-size: 0.88rem;
  font-weight: 500; display: flex; align-items: center; gap: 10px; z-index: 1000;
  opacity: 0; transform: translateY(12px); transition: all 0.25s ease; pointer-events: none;
}
.toast-notice.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .features-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .family-links-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-menu { display: none; }
}

/* Header: six nav items since the Chrome & Brave page (2026-09-25). Keep labels on one line,
   and drop the theme picker where the header has no room for it (it pushed the header off-screen on phones). */
.nav-link, .site-header .btn { white-space: nowrap; }
@media (max-width: 1180px) {
  .quick-theme-picker, .nav-parent-tag { display: none; }
}