/* ===== RÉVOLUTION — French Revolution Gamified Learning ===== */

:root {
  --parchment: #f4ecd8;
  --parchment-dark: #e8dcc4;
  --ink: #1a1410;
  --ink-light: #3d3529;
  --burgundy: #8b1a2b;
  --burgundy-dark: #6a0f1f;
  --burgundy-glow: #c4243b;
  --gold: #c5a455;
  --gold-light: #ddc57a;
  --gold-dim: #a08535;
  --navy: #1c2a4a;
  --navy-light: #2a3d6b;
  --cream: #faf6eb;
  --sepia: #704214;
  --blood: #991b2e;
  --tricolor-blue: #002395;
  --tricolor-white: #ffffff;
  --tricolor-red: #ed2939;
  --shadow-ink: rgba(26, 20, 16, 0.3);
  --font-display: 'Playfair Display', serif;
  --font-body: 'Crimson Text', serif;
  --font-accent: 'IM Fell English', serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--ink);
  color: var(--ink);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== PARCHMENT TEXTURE ===== */
.parchment-bg {
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(112, 66, 20, 0.02) 3px,
      rgba(112, 66, 20, 0.02) 4px
    ),
    radial-gradient(ellipse at 20% 50%, rgba(197, 164, 85, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 26, 43, 0.05) 0%, transparent 40%),
    linear-gradient(180deg, var(--parchment) 0%, var(--parchment-dark) 100%);
}

/* ===== SPLASH SCREEN ===== */
#splash-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background:
    radial-gradient(ellipse at center, rgba(139, 26, 43, 0.15) 0%, transparent 60%),
    linear-gradient(180deg, #0d0a07 0%, #1a1410 40%, #1a1410 60%, #0d0a07 100%);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#splash-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.splash-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  color: var(--parchment);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-align: center;
  position: relative;
  animation: titleReveal 1.5s ease-out forwards;
  opacity: 0;
}

.splash-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--burgundy), var(--gold), var(--burgundy), transparent);
  animation: lineExpand 1s ease-out 0.8s forwards;
}

.splash-subtitle {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--gold);
  margin-top: 2rem;
  opacity: 0;
  animation: fadeUp 1s ease-out 1.2s forwards;
  text-align: center;
}

.splash-year {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 2rem);
  color: var(--burgundy);
  margin-top: 0.5rem;
  letter-spacing: 0.5em;
  opacity: 0;
  animation: fadeUp 1s ease-out 1.5s forwards;
}

.splash-start {
  margin-top: 3rem;
  padding: 1rem 3rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--parchment);
  background: var(--burgundy);
  border: 2px solid var(--gold);
  cursor: pointer;
  opacity: 0;
  animation: fadeUp 1s ease-out 1.8s forwards;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.splash-start:hover {
  background: var(--burgundy-dark);
  border-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 26, 43, 0.4);
}

.splash-start::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(197, 164, 85, 0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.splash-start:hover::before {
  transform: translateX(100%);
}

/* Tricolor bar */
.tricolor-bar {
  display: flex;
  width: 180px;
  height: 4px;
  margin-top: 2rem;
  opacity: 0;
  animation: fadeUp 1s ease-out 2s forwards;
}

.tricolor-bar span:nth-child(1) { flex: 1; background: var(--tricolor-blue); }
.tricolor-bar span:nth-child(2) { flex: 1; background: var(--tricolor-white); }
.tricolor-bar span:nth-child(3) { flex: 1; background: var(--tricolor-red); }

/* ===== MAIN LAYOUT ===== */
#main-app {
  display: none;
  min-height: 100vh;
}

#main-app.active {
  display: block;
}

/* ===== HEADER / NAV ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(180deg, var(--ink) 0%, rgba(26, 20, 16, 0.97) 100%);
  border-bottom: 2px solid var(--burgundy);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(10px);
}

.header-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  color: var(--parchment);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-brand span {
  color: var(--burgundy-glow);
}

.header-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  background: rgba(197, 164, 85, 0.1);
  border: 1px solid rgba(197, 164, 85, 0.3);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--gold);
}

.stat-pill i {
  width: 16px;
  height: 16px;
}

.stat-pill .stat-value {
  font-weight: 700;
  min-width: 28px;
  text-align: center;
}

.level-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: linear-gradient(135deg, var(--burgundy-dark), var(--burgundy));
  border: 1px solid var(--gold);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--parchment);
  font-weight: 700;
}

/* ===== NAVIGATION TABS ===== */
.nav-tabs {
  display: flex;
  background: var(--ink);
  border-bottom: 1px solid rgba(197, 164, 85, 0.2);
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-tabs::-webkit-scrollbar { display: none; }

.nav-tab {
  flex: 1;
  min-width: 120px;
  padding: 1rem 1.5rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(244, 236, 216, 0.5);
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  white-space: nowrap;
  text-align: center;
}

.nav-tab:hover {
  color: var(--parchment);
  background: rgba(139, 26, 43, 0.1);
}

.nav-tab.active {
  color: var(--gold);
}

.nav-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, var(--burgundy), var(--gold), var(--burgundy));
}

.nav-tab .tab-icon {
  display: block;
  margin: 0 auto 0.3rem;
  width: 20px;
  height: 20px;
}

/* lock icon for locked tabs */
.nav-tab.locked {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ===== TAB PANELS ===== */
.tab-panel {
  display: none;
  min-height: calc(100vh - 140px);
}

.tab-panel.active {
  display: block;
  animation: panelIn 0.5s ease-out;
}

/* ===== TIMELINE TAB ===== */
.timeline-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 900;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.section-header .divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.75rem;
}

.section-header .divider span {
  height: 1px;
  width: 60px;
  background: var(--burgundy);
}

.section-header .divider i {
  color: var(--burgundy);
  width: 20px;
  height: 20px;
}

/* Timeline line */
.timeline {
  position: relative;
  padding-left: 60px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--burgundy), var(--gold-dim), var(--burgundy));
}

/* Timeline event card */
.timeline-event {
  position: relative;
  margin-bottom: 2.5rem;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.timeline-event:hover {
  transform: translateX(4px);
}

.timeline-dot {
  position: absolute;
  left: -48px;
  top: 18px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--parchment);
  border: 3px solid var(--burgundy);
  z-index: 2;
  transition: all 0.3s ease;
}

.timeline-event.unlocked .timeline-dot {
  background: var(--burgundy);
  box-shadow: 0 0 12px rgba(139, 26, 43, 0.5);
}

.timeline-event.locked .timeline-dot {
  background: var(--parchment-dark);
  border-color: #999;
}

.event-card {
  background: var(--cream);
  border: 1px solid rgba(112, 66, 20, 0.2);
  padding: 1.5rem;
  position: relative;
  box-shadow: 4px 4px 0 rgba(112, 66, 20, 0.1);
  transition: all 0.3s ease;
}

.event-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--burgundy);
}

.timeline-event.locked .event-card {
  opacity: 0.4;
  filter: blur(2px);
  pointer-events: none;
}

.event-card:hover {
  box-shadow: 6px 6px 0 rgba(139, 26, 43, 0.15);
}

.event-year {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--burgundy);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.3rem;
}

.event-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.event-summary {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-light);
  line-height: 1.6;
}

.event-detail {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(112, 66, 20, 0.3);
}

.event-detail.open {
  display: block;
  animation: expandIn 0.4s ease-out;
}

.event-detail p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.event-xp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  background: rgba(197, 164, 85, 0.15);
  border: 1px solid var(--gold-dim);
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--gold-dim);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
}

.read-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.75rem;
  padding: 0.3rem 0.8rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--burgundy);
  background: rgba(139, 26, 43, 0.08);
  border: 1px solid rgba(139, 26, 43, 0.2);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}

.read-toggle:hover {
  background: rgba(139, 26, 43, 0.15);
}

/* ===== PEOPLE TAB ===== */
.people-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.person-card {
  background: var(--cream);
  border: 1px solid rgba(112, 66, 20, 0.2);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.person-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(26, 20, 16, 0.15);
}

.person-card.locked {
  opacity: 0.3;
  filter: blur(3px) grayscale(1);
  pointer-events: none;
}

.person-header {
  padding: 1.5rem 1.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid rgba(112, 66, 20, 0.1);
}

.person-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--parchment);
  flex-shrink: 0;
}

.person-avatar.king { background: linear-gradient(135deg, var(--gold), var(--gold-dim)); }
.person-avatar.queen { background: linear-gradient(135deg, var(--burgundy), #a0203a); }
.person-avatar.revolutionary { background: linear-gradient(135deg, var(--navy), var(--navy-light)); }
.person-avatar.philosopher { background: linear-gradient(135deg, var(--sepia), #8b5a2b); }
.person-avatar.general { background: linear-gradient(135deg, #2d4a2d, #4a7a4a); }

.person-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.person-role {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--sepia);
  margin-top: 0.15rem;
}

.person-body {
  padding: 1rem 1.5rem 1.5rem;
}

.person-desc {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-light);
  line-height: 1.6;
}

.person-faction {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.2rem 0.6rem;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid;
}

.faction-monarchy { color: var(--gold-dim); border-color: var(--gold-dim); background: rgba(197, 164, 85, 0.1); }
.faction-revolution { color: var(--burgundy); border-color: var(--burgundy); background: rgba(139, 26, 43, 0.08); }
.faction-thought { color: var(--navy); border-color: var(--navy); background: rgba(28, 42, 74, 0.08); }

/* ===== QUIZ TAB ===== */
.quiz-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.quiz-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.quiz-progress-bar {
  flex: 1;
  height: 8px;
  background: rgba(112, 66, 20, 0.15);
  border-radius: 4px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--burgundy), var(--gold));
  border-radius: 4px;
  transition: width 0.5s ease;
}

.quiz-progress-text {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--ink-light);
  font-weight: 700;
  white-space: nowrap;
}

.quiz-card {
  background: var(--cream);
  border: 2px solid rgba(112, 66, 20, 0.2);
  padding: 2.5rem;
  position: relative;
}

.quiz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--tricolor-blue), var(--tricolor-white), var(--tricolor-red));
}

.quiz-category {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--burgundy);
  margin-bottom: 1rem;
}

.quiz-question {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 2rem;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--parchment);
  border: 2px solid rgba(112, 66, 20, 0.15);
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  text-align: left;
  width: 100%;
}

.quiz-option:hover:not(.selected):not(.correct):not(.wrong) {
  border-color: var(--burgundy);
  background: rgba(139, 26, 43, 0.05);
  transform: translateX(4px);
}

.quiz-option .option-letter {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border: 2px solid var(--ink-light);
  color: var(--ink-light);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.quiz-option.correct {
  border-color: #2d7a2d;
  background: rgba(45, 122, 45, 0.1);
}

.quiz-option.correct .option-letter {
  border-color: #2d7a2d;
  background: #2d7a2d;
  color: white;
}

.quiz-option.wrong {
  border-color: var(--blood);
  background: rgba(153, 27, 46, 0.08);
}

.quiz-option.wrong .option-letter {
  border-color: var(--blood);
  background: var(--blood);
  color: white;
}

.quiz-feedback {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  border-left: 4px solid;
  display: none;
}

.quiz-feedback.show { display: block; animation: expandIn 0.3s ease-out; }
.quiz-feedback.correct-feedback {
  background: rgba(45, 122, 45, 0.08);
  border-color: #2d7a2d;
  color: #1a5a1a;
}

.quiz-feedback.wrong-feedback {
  background: rgba(153, 27, 46, 0.08);
  border-color: var(--blood);
  color: var(--burgundy-dark);
}

.quiz-next {
  display: none;
  margin-top: 1.5rem;
  padding: 0.8rem 2rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--parchment);
  background: var(--burgundy);
  border: 1px solid var(--gold-dim);
  cursor: pointer;
  transition: all 0.3s ease;
}

.quiz-next.show { display: inline-block; animation: fadeUp 0.3s ease-out; }

.quiz-next:hover {
  background: var(--burgundy-dark);
  transform: translateY(-2px);
}

/* ===== CAUSES TAB ===== */
.causes-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.cause-card {
  background: var(--cream);
  border: 1px solid rgba(112, 66, 20, 0.2);
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.cause-card:hover {
  box-shadow: 0 6px 20px rgba(26, 20, 16, 0.1);
}

.cause-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: background 0.3s ease;
}

.cause-header:hover {
  background: rgba(139, 26, 43, 0.03);
}

.cause-number {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--burgundy);
  color: var(--parchment);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cause-title {
  flex: 1;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
}

.cause-chevron {
  color: var(--burgundy);
  transition: transform 0.3s ease;
  width: 20px;
  height: 20px;
}

.cause-card.open .cause-chevron {
  transform: rotate(180deg);
}

.cause-body {
  display: none;
  padding: 0 1.5rem 1.5rem;
  padding-left: calc(1.5rem + 40px + 1rem);
}

.cause-card.open .cause-body {
  display: block;
  animation: expandIn 0.4s ease-out;
}

.cause-body p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.cause-body ul {
  list-style: none;
  padding: 0;
}

.cause-body ul li {
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-light);
  line-height: 1.5;
}

.cause-body ul li::before {
  content: '⚜';
  position: absolute;
  left: 0;
  color: var(--burgundy);
  font-size: 0.75rem;
}

/* ===== AFTERMATH TAB ===== */
.aftermath-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.aftermath-section {
  margin-bottom: 2.5rem;
}

.aftermath-card {
  background: var(--cream);
  border: 1px solid rgba(112, 66, 20, 0.2);
  padding: 2rem;
  position: relative;
  margin-bottom: 1.5rem;
}

.aftermath-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.aftermath-card h3 i {
  color: var(--burgundy);
  width: 24px;
  height: 24px;
}

.aftermath-card p,
.aftermath-card li {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink-light);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.aftermath-card ul {
  list-style: none;
  padding-left: 1.25rem;
}

.aftermath-card ul li::before {
  content: '◆';
  position: absolute;
  left: 2rem;
  color: var(--gold-dim);
  font-size: 0.5rem;
  margin-top: 0.45rem;
}

.aftermath-card ul li {
  position: relative;
  padding-left: 1.25rem;
}

/* ===== ACHIEVEMENTS TAB ===== */
.achievements-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.achievement-card {
  background: var(--cream);
  border: 1px solid rgba(112, 66, 20, 0.2);
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.achievement-card.earned {
  border-color: var(--gold);
  box-shadow: 0 0 20px rgba(197, 164, 85, 0.15);
}

.achievement-card.locked {
  opacity: 0.45;
}

.achievement-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.achievement-card.earned .achievement-icon {
  animation: achievePulse 2s ease-in-out infinite;
}

.achievement-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.3rem;
}

.achievement-desc {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--sepia);
}

.achievement-card.earned::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 1rem;
  color: #2d7a2d;
  font-weight: 700;
}

/* ===== QUIZ COMPLETE SCREEN ===== */
.quiz-complete {
  text-align: center;
  padding: 3rem 2rem;
}

.quiz-complete h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 1rem;
}

.quiz-score-display {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  color: var(--burgundy);
  margin: 1rem 0;
}

.quiz-score-display span {
  font-size: 2rem;
  color: var(--ink-light);
}

.quiz-complete p {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--ink-light);
  margin-bottom: 2rem;
}

.quiz-restart {
  padding: 0.8rem 2.5rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--parchment);
  background: var(--burgundy);
  border: 1px solid var(--gold-dim);
  cursor: pointer;
  transition: all 0.3s ease;
}

.quiz-restart:hover {
  background: var(--burgundy-dark);
  transform: translateY(-2px);
}

/* ===== XP POPUP ===== */
.xp-popup {
  position: fixed;
  top: 80px;
  right: 2rem;
  padding: 0.75rem 1.5rem;
  background: var(--ink);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--gold);
  z-index: 200;
  animation: xpPop 2s ease-out forwards;
  pointer-events: none;
}

/* ===== ACHIEVEMENT POPUP ===== */
.achieve-popup {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--ink), var(--burgundy-dark));
  border: 2px solid var(--gold);
  color: var(--parchment);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: achieveSlide 3s ease-in-out forwards;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  white-space: nowrap;
}

.achieve-popup .achieve-emoji { font-size: 1.5rem; }

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== ANIMATIONS ===== */
@keyframes titleReveal {
  from { opacity: 0; transform: translateY(30px); letter-spacing: 0.5em; }
  to { opacity: 1; transform: translateY(0); letter-spacing: 0.15em; }
}

@keyframes lineExpand {
  from { width: 0; }
  to { width: min(400px, 60vw); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes expandIn {
  from { opacity: 0; max-height: 0; }
  to { opacity: 1; max-height: 1000px; }
}

@keyframes xpPop {
  0% { opacity: 0; transform: translateY(20px); }
  15% { opacity: 1; transform: translateY(0); }
  75% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-30px); }
}

@keyframes achieveSlide {
  0% { opacity: 0; transform: translateX(-50%) translateY(40px); }
  10% { opacity: 1; transform: translateX(-50%) translateY(0); }
  85% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(40px); }
}

@keyframes achievePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .app-header {
    padding: 0.5rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .header-stats {
    gap: 0.75rem;
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .stat-pill {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }

  .timeline {
    padding-left: 45px;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline-dot {
    left: -37px;
    width: 14px;
    height: 14px;
  }

  .event-card {
    padding: 1rem;
  }

  .quiz-card {
    padding: 1.5rem;
  }

  .people-grid {
    grid-template-columns: 1fr;
  }

  .nav-tab {
    padding: 0.75rem 0.75rem;
    font-size: 0.7rem;
    min-width: 70px;
  }

  .nav-tab .tab-icon {
    width: 16px;
    height: 16px;
  }

  .xp-popup {
    right: 1rem;
    font-size: 0.85rem;
  }
}

/* ===== ESTATE DIAGRAM ===== */
.estate-diagram {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.estate-block {
  flex: 1;
  min-width: 150px;
  padding: 1rem;
  text-align: center;
  border: 1px solid rgba(112, 66, 20, 0.2);
  background: var(--parchment);
}

.estate-block h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--burgundy);
  margin-bottom: 0.3rem;
}

.estate-block .estate-pop {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--ink);
}

.estate-block p {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--sepia);
  margin-top: 0.3rem;
}

/* ===== READING COMPLETE BUTTON ===== */
.mark-read-btn {
  display: block;
  margin: 0.75rem 0 0;
  padding: 0.4rem 1rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--parchment);
  background: var(--burgundy);
  border: 1px solid var(--gold-dim);
  cursor: pointer;
  transition: all 0.3s ease;
}

.mark-read-btn:hover {
  background: var(--burgundy-dark);
}

.mark-read-btn.completed {
  background: #2d7a2d;
  border-color: #2d7a2d;
  cursor: default;
}