/* ============================================
   READING VAULT - Academic Brutalism Design
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:wght@400;600;700&family=Work+Sans:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap');

:root {
  --vault-black: #0a0a0a;
  --vault-charcoal: #1a1a1a;
  --vault-slate: #2d2d2d;
  --vault-gray-100: #f5f5f5;
  --vault-gray-200: #e5e5e5;
  --vault-gray-300: #d4d4d4;
  --vault-gray-600: #737373;
  --vault-gray-800: #404040;
  --vault-cream: #faf8f5;
  --vault-gold: #d4a574;
  --vault-rust: #c96a43;
  --score-excellent: #16a34a;
  --score-good: #65a30d;
  --score-fair: #ca8a04;
  --score-poor: #dc2626;
  --shadow-brutal: 4px 4px 0 var(--vault-black);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Work Sans', sans-serif;
  background: var(--vault-cream);
  color: var(--vault-black);
  line-height: 1.6;
}

h1, h2, h3, h4, .serif {
  font-family: 'Crimson Pro', serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* ===== HEADER ===== */
.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--vault-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 2rem;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Crimson Pro', serif;
  font-size: 24px;
  font-weight: 700;
}

.logo-icon {
  font-size: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--vault-charcoal);
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover {
  color: var(--vault-gold);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--vault-gold);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* ===== BUTTONS ===== */
.btn-primary, .btn-secondary {
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  display: inline-block;
  border: none;
}

.btn-primary {
  background: var(--vault-gold);
  color: var(--vault-black);
  box-shadow: 0 2px 8px rgba(212, 165, 116, 0.2);
}

.btn-primary:hover {
  background: #c89560;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(212, 165, 116, 0.3);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--vault-black);
  color: var(--vault-black);
}

.btn-secondary:hover {
  background: var(--vault-black);
  color: white;
}

.btn-large {
  padding: 16px 40px;
  font-size: 18px;
}

/* ===== HERO SECTION ===== */
.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 100px 2rem 80px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  margin-bottom: 32px;
}

.hero-title {
  font-size: clamp(42px, 8vw, 72px);
  line-height: 1.1;
  margin-bottom: 24px;
}

.highlight-text {
  background: linear-gradient(120deg, var(--vault-cream) 0%, var(--vault-gold) 100%);
  padding: 0 8px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--vault-gray-600);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-subtext {
  font-size: 14px;
  color: var(--vault-gray-600);
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  background: white;
  padding: 100px 2rem;
}

.section-title {
  font-size: 48px;
  text-align: center;
  margin-bottom: 64px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.step-card {
  background: var(--vault-cream);
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  position: relative;
}

.step-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.step-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--vault-gold);
  position: absolute;
  top: 24px;
  right: 24px;
}

.step-icon {
  font-size: 48px;
  margin-bottom: 24px;
}

.step-title {
  font-size: 24px;
  margin-bottom: 16px;
}

.step-description {
  color: var(--vault-gray-600);
}

/* ===== WORD CHECKER ===== */
.checker-container {
  max-width: 800px;
  margin: 48px auto;
  padding: 0 2rem;
}

.checker-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.form-step {
  margin-bottom: 32px;
}

.form-label {
  font-family: 'Crimson Pro', serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.step-badge {
  background: var(--vault-gold);
  color: var(--vault-black);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-family: 'Work Sans', sans-serif;
  font-weight: 600;
}

.form-textarea {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--vault-gray-200);
  border-radius: 12px;
  font-family: 'Work Sans', sans-serif;
  font-size: 16px;
  resize: vertical;
  min-height: 120px;
  transition: border-color 0.2s;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--vault-gold);
  box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.1);
}

/* Clickable words */
.sentence-display {
  background: var(--vault-gray-100);
  padding: 24px;
  border-radius: 12px;
  font-size: 18px;
  line-height: 2;
  margin-bottom: 20px;
}

.word-token {
  display: inline-block;
  padding: 4px 8px;
  margin: 2px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.word-token:hover {
  background: var(--vault-gold);
  color: white;
}

.word-token.selected {
  background: var(--vault-gold);
  color: white;
  transform: scale(1.05);
}

.selected-word-display {
  background: var(--vault-cream);
  padding: 16px 20px;
  border-radius: 12px;
  margin: 20px 0;
}

.word-highlight {
  font-family: 'Crimson Pro', serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--vault-gold);
  margin-left: 8px;
}

/* Book/Author Autocomplete */
.autocomplete-wrapper {
  position: relative;
  margin-bottom: 20px;
}

.autocomplete-input {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--vault-gray-200);
  border-radius: 12px;
  font-size: 16px;
}

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 1px solid var(--vault-gray-200);
  border-radius: 12px;
  margin-top: 4px;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  z-index: 10;
  display: none;
}

.autocomplete-item {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--vault-gray-100);
  transition: background 0.2s;
}

.autocomplete-item:hover {
  background: var(--vault-cream);
}

.autocomplete-item strong {
  color: var(--vault-gold);
}

/* ===== SCORE DISPLAY ===== */
.score-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  margin-top: 32px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.score-circle {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto 24px;
}

.score-ring {
  transform: rotate(-90deg);
}

.ring-background {
  fill: none;
  stroke: var(--vault-gray-200);
  stroke-width: 8;
}

.ring-progress {
  fill: none;
  stroke: var(--score-excellent);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.5s ease;
}

.score-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 48px;
  font-weight: 700;
  animation: scoreReveal 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes scoreReveal {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
  50% { transform: translate(-50%, -50%) scale(1.1); }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

.feedback-section {
  padding: 20px;
  margin: 16px 0;
  border-left: 4px solid;
  background: var(--vault-cream);
  border-radius: 8px;
}

.feedback-section.success { border-color: var(--score-excellent); }
.feedback-section.warning { border-color: var(--score-fair); }
.feedback-section.info { border-color: var(--vault-gold); }

/* ===== DASHBOARD ===== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.stat-card {
  background: white;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  text-align: center;
  transition: transform 0.3s;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.stat-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px;
  font-weight: 700;
  display: block;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--vault-gray-600);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Word Cards Grid */
.word-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.vault-word-card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s;
}

.vault-word-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-word {
  font-family: 'Crimson Pro', serif;
  font-size: 28px;
  font-weight: 700;
}

.card-score {
  font-family: 'JetBrains Mono', monospace;
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
}

.card-score.excellent { background: var(--score-excellent); color: white; }
.card-score.good { background: var(--score-good); color: white; }
.card-score.fair { background: var(--score-fair); color: white; }
.card-score.poor { background: var(--score-poor); color: white; }

.card-context {
  background: var(--vault-cream);
  padding: 16px;
  border-radius: 8px;
  font-style: italic;
  margin-bottom: 16px;
}

.card-meta {
  display: flex;
  gap: 16px;
  color: var(--vault-gray-600);
  font-size: 13px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--vault-gray-200);
}

/* ===== WALL OF FAME/SHAME ===== */
.wall-tabs {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin: 32px 0 48px;
}

.wall-tab {
  padding: 16px 40px;
  background: white;
  border: 2px solid var(--vault-gray-200);
  border-radius: 12px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.wall-tab.active {
  background: var(--vault-gold);
  border-color: var(--vault-gold);
  color: var(--vault-black);
  box-shadow: var(--shadow-brutal);
  transform: translate(-2px, -2px);
}

.wall-tab:hover:not(.active) {
  border-color: var(--vault-gold);
}

.leaderboard-list {
  max-width: 900px;
  margin: 0 auto;
}

.leaderboard-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  display: flex;
  align-items: center;
  gap: 24px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.leaderboard-card.rank-1 {
  background: linear-gradient(135deg, #fff 0%, #fff9f0 100%);
  border-left: 8px solid #ffd700;
}

.leaderboard-card.rank-2 {
  border-left: 8px solid #c0c0c0;
}

.leaderboard-card.rank-3 {
  border-left: 8px solid #cd7f32;
}

.card-rank {
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  font-weight: 700;
  min-width: 60px;
  text-align: center;
}

.rank-badge {
  font-size: 24px;
}

.word-content {
  flex: 1;
}

.word-term {
  font-family: 'Crimson Pro', serif;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.word-sample {
  font-style: italic;
  color: var(--vault-gray-600);
  margin-bottom: 12px;
}

.word-stats {
  display: flex;
  gap: 24px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-item .label {
  font-size: 12px;
  color: var(--vault-gray-600);
  text-transform: uppercase;
}

.stat-item .value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  font-weight: 600;
}

/* ===== ADMIN PAGE ===== */
.admin-container {
  max-width: 1400px;
  margin: 48px auto;
  padding: 0 2rem;
}

.admin-header {
  background: linear-gradient(135deg, var(--vault-charcoal) 0%, var(--vault-slate) 100%);
  color: white;
  padding: 48px;
  border-radius: 24px;
  margin-bottom: 48px;
}

.admin-title {
  font-size: 48px;
  margin-bottom: 16px;
}

.admin-subtitle {
  font-size: 18px;
  opacity: 0.8;
}

.stats-grid-large {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.chart-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.chart-title {
  font-size: 20px;
  margin-bottom: 24px;
}

.big-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 64px;
  font-weight: 700;
  color: var(--vault-gold);
}

.data-table {
  width: 100%;
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.data-table th {
  background: var(--vault-charcoal);
  color: white;
  padding: 16px;
  text-align: left;
  font-weight: 600;
}

.data-table td {
  padding: 16px;
  border-bottom: 1px solid var(--vault-gray-200);
}

/* ===== AUTH PAGES ===== */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--vault-cream) 0%, white 100%);
}

.auth-card {
  background: white;
  border-radius: 24px;
  padding: 48px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}

.auth-title {
  font-size: 36px;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--vault-gray-600);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 24px;
}

.form-input {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--vault-gray-200);
  border-radius: 12px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--vault-gold);
}

.auth-footer {
  text-align: center;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--vault-gray-200);
}

.auth-footer a {
  color: var(--vault-gold);
  text-decoration: none;
  font-weight: 600;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 16px;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }
  
  .steps-grid {
    grid-template-columns: 1fr;
  }
  
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .word-grid {
    grid-template-columns: 1fr;
  }
  .user-greeting {
    font-family: 'Work Sans', sans-serif;
    font-weight: 500;
    color: var(--vault-gray-800);
    padding: 8px 0;
}
  .stats-grid-large {
    grid-template-columns: 1fr;
  }
}
.other-meanings {
    background: linear-gradient(135deg, #faf8f5 0%, #fff5eb 100%);
    border-left: 4px solid #d4a574;
}

.context-note {
    color: #737373;
    font-style: italic;
    margin-bottom: 12px;
}

.meanings-list {
    list-style: none;
    padding: 0;
}

.meanings-list li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(212, 165, 116, 0.2);
}

.meanings-list li:last-child {
    border-bottom: none;
}

.meanings-list strong {
    color: #d4a574;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    margin-right: 8px;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease;
}

.stagger-item {
  animation: fadeInUp 0.5s ease calc(var(--index, 0) * 0.1s) backwards;
}

/* ===== UTILITIES ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 16px; }