@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Title 22 Colors (Light Theme by default) */
  --ink: #1a1f36;
  --ink-light: #4a5568;
  --ink-lighter: #718096;
  --paper: #f8f9fc;
  --white: #ffffff;
  --accent: #2b6cb0;
  --accent-light: #eef5fb;
  --border-color: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(43, 108, 176, 0.22);
  --shadow: 0 4px 12px rgba(17, 24, 39, 0.04);
  --shadow-hover: 0 10px 28px rgba(17, 24, 39, 0.08);
  
  --radius: 12px;
  --radius-lg: 16px;
  --font-serif: "Outfit", sans-serif;
  --font-sans: "Inter", sans-serif;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  /* Title 22 Dark Theme Adaptation */
  --ink: #f3f4f6;
  --ink-light: #cbd5e1;
  --ink-lighter: #94a3b8;
  --paper: #0b111e;
  --white: #111827;
  --accent: #3b82f6;
  --accent-light: rgba(59, 130, 246, 0.1);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 30px rgba(59, 130, 246, 0.15);
}

/* Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

/* Container */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Header
   ======================================== */
.header {
  padding: 24px 0;
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--ink);
}

.logo-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--ink-light);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.theme-toggle-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--border-hover);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  background-color: #0c122c;
  background-image: linear-gradient(rgba(12, 18, 44, 0.55), rgba(12, 18, 44, 0.75)), url("assets/hero/optimized/hero_background_hq_1770157778448.webp");
  background-size: cover;
  background-position: center center;
  color: #ffffff;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
}

[data-theme="dark"] .hero {
  background-color: #020617;
  background-image: linear-gradient(rgba(2, 6, 23, 0.7), rgba(2, 6, 23, 0.85)), url("assets/hero/optimized/hero_background_hq_1770157778448.webp");
}

.hero-bg-waves {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.08;
  z-index: 1;
  pointer-events: none;
  background-image: radial-gradient(circle at 100% 150%, #ffffff 24%, transparent 24%),
                    radial-gradient(circle at 0% 150%, #ffffff 24%, transparent 24%);
  background-size: 120px 120px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
  max-width: 700px;
  margin: 0 auto;
}

/* ========================================
   Layout grid for Controls & Cards
   ======================================== */
.workspace-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 32px;
  margin-top: 40px;
  margin-bottom: 60px;
  align-items: start;
}

@media (max-width: 900px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

/* Left Sidebar Controls */
.sidebar {
  position: sticky;
  top: 100px;
  display: grid;
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title svg {
  color: var(--accent);
}

/* Search and Categories */
.search-input-wrapper {
  position: relative;
  margin-bottom: 20px;
}

.search-input-wrapper svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-lighter);
  width: 18px;
  height: 18px;
}

.search-input {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px 10px 38px;
  color: var(--ink);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-smooth);
}

.search-input:focus {
  border-color: var(--accent);
  background: var(--white);
}

/* Predefined Categories Filter Menu */
.category-filter-list {
  list-style: none;
  display: grid;
  gap: 6px;
}

.category-filter-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: 1px solid transparent;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--ink-light);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.category-filter-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
}

.category-filter-btn.active {
  background: var(--accent-light);
  color: var(--accent);
  border-color: rgba(43, 108, 176, 0.15);
  font-weight: 600;
}

.category-count {
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink-light);
  padding: 2px 8px;
  border-radius: 20px;
}

[data-theme="dark"] .category-count {
  background: rgba(255, 255, 255, 0.1);
  color: var(--ink-lighter);
}

.category-filter-btn.active .category-count {
  background: var(--accent);
  color: #ffffff;
}

/* Bookmarklet Tool Card styling */
.bookmarklet-setup {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.setup-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.setup-input-group label {
  font-size: 0.85rem;
  color: var(--ink-light);
  font-weight: 500;
}

.setup-input {
  background: var(--paper);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--ink);
  font-size: 0.85rem;
  outline: none;
  font-family: monospace;
}

.bookmarklet-actions {
  display: grid;
  gap: 8px;
  margin-top: 6px;
}

.bookmarklet-link {
  text-align: center;
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  padding: 10px;
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: grab;
  box-shadow: 0 2px 6px rgba(43, 108, 176, 0.15);
  transition: var(--transition-smooth);
}

.bookmarklet-link:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.copy-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--ink-light);
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.copy-btn:hover {
  background: var(--paper);
  color: var(--ink);
}

.helper-text {
  font-size: 0.8rem;
  color: var(--ink-lighter);
  line-height: 1.4;
}

/* ========================================
   Main Archive Area
   ======================================== */
.archive-main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.archive-main-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
}

.results-count {
  font-size: 0.85rem;
  color: var(--ink-lighter);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Articles Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340fr, 1fr)); /* Wait, auto-fill standard */
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

@media (max-width: 600px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

/* Content Item - Title 22 Inspired Card */
.content-item {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition-smooth);
}

.content-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}

.content-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.content-source {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.content-date {
  font-size: 0.75rem;
  color: var(--ink-lighter);
}

.content-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.35;
  margin-bottom: 8px;
}

.content-blurb {
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Sub-tags inside card */
.content-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.content-chip {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  background: var(--paper);
  color: var(--ink-light);
  border-radius: 4px;
}

/* Footer row of card */
.content-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  margin-top: auto;
}

.btn-notes-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-notes-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.btn-source-link {
  font-size: 0.85rem;
  color: var(--ink-lighter);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-source-link:hover {
  color: var(--ink);
}

/* Empty State styling */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  background: var(--white);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--ink-lighter);
  box-shadow: var(--shadow);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  color: var(--ink-lighter);
  margin-bottom: 12px;
  opacity: 0.6;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  text-align: center;
  padding: 40px 0;
  color: var(--ink-lighter);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  background: var(--white);
  margin-top: 80px;
}

.footer a {
  color: var(--ink-light);
  font-weight: 500;
}

.footer a:hover {
  color: var(--accent);
}