/* ===== BALI TYCOON LEARNING SITE ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700;900&family=Noto+Sans+JP:wght@300;400;700&display=swap');

:root {
  --bali-navy: #0A1628;
  --bali-dark: #060E1A;
  --bali-gold: #D4AF37;
  --bali-gold2: #F5D060;
  --bali-emerald: #00C8A0;
  --bali-copper: #B87333;
  --bali-text: #E8DCC8;
  --bali-muted: #8A7A6A;
  --bali-border: rgba(212, 175, 55, 0.25);
  --bali-card: rgba(15, 25, 45, 0.85);
  --radius: 12px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--bali-dark);
  color: var(--bali-text);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ===== BACKGROUND TEXTURE ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(212, 175, 55, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(0, 200, 160, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(10, 22, 40, 0.8) 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

/* ===== PROGRESS BAR ===== */
#progress-bar-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  z-index: 1000;
}

#progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
  width: 0%;
  transition: width 0.2s ease;
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.6);
}

/* ===== NAV ===== */
.site-nav {
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(6, 14, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bali-border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.85rem;
  color: var(--bali-gold);
  letter-spacing: 0.1em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo::before {
  content: '✦';
  font-size: 0.7rem;
}

.nav-chapters {
  display: flex;
  gap: 4px;
  list-style: none;
}

.nav-chapters li a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  color: var(--bali-muted);
  text-decoration: none;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.nav-chapters li a:hover,
.nav-chapters li a.active {
  color: var(--bali-gold);
  border-color: var(--bali-border);
  background: rgba(212, 175, 55, 0.08);
}

.nav-chapters li a.locked {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.nav-chapters li a.locked::after {
  content: '🔒';
  font-size: 0.65rem;
}

@media (max-width: 640px) {
  .nav-chapters {
    display: none;
  }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(212, 175, 55, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 200, 160, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, #060E1A 0%, #0A1628 50%, #060E1A 100%);
  z-index: -1;
}

.hero-ornament {
  font-size: 3rem;
  margin-bottom: 24px;
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.5));
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--bali-border);
  border-radius: 20px;
  font-size: 0.75rem;
  color: var(--bali-gold);
  letter-spacing: 0.15em;
  margin-bottom: 24px;
  background: rgba(212, 175, 55, 0.06);
}

.hero-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--bali-gold2) 0%, var(--bali-gold) 40%, var(--bali-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--bali-muted);
  max-width: 480px;
  margin: 0 auto 40px;
  line-height: 1.9;
}

/* Hero Author Note */
.hero-author-note {
  font-size: 0.78rem;
  color: rgba(212, 175, 55, 0.75);
  letter-spacing: 0.04em;
  margin: -24px auto 28px;
  line-height: 1.8;
  max-width: 480px;
  text-align: center;
  padding: 8px 18px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 6px;
  background: rgba(212, 175, 55, 0.04);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--bali-gold) 0%, var(--bali-gold2) 100%);
  color: #0A1628;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.35);
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5);
}

.hero-progress {
  margin-top: 60px;
  width: 100%;
  max-width: 480px;
}

.hero-progress-label {
  font-size: 0.75rem;
  color: var(--bali-muted);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.hero-progress-bar-wrap {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  overflow: hidden;
}

.hero-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
  border-radius: 3px;
  transition: width 0.6s ease;
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.4);
}

/* ===== CHAPTER CARDS (index) ===== */
.chapters-section {
  padding: 80px 24px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-heading {
  text-align: center;
  margin-bottom: 48px;
}

.section-heading h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--bali-gold);
  margin-bottom: 8px;
}

.section-heading p {
  color: var(--bali-muted);
  font-size: 0.9rem;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.chapter-card {
  background: var(--bali-card);
  border: 1px solid var(--bali-border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none;
  display: block;
}

.chapter-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
  opacity: 0;
  transition: var(--transition);
}

.chapter-card:hover::before {
  opacity: 1;
}

.chapter-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 175, 55, 0.4);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.chapter-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.chapter-card.passed::before {
  opacity: 1;
}

.card-num {
  font-size: 0.7rem;
  color: var(--bali-gold);
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}

.card-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem;
  color: var(--bali-text);
  margin-bottom: 10px;
  line-height: 1.5;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--bali-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.card-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  padding: 5px 12px;
  border-radius: 20px;
  font-weight: 700;
}

.card-status.unlocked {
  background: rgba(212, 175, 55, 0.12);
  color: var(--bali-gold);
  border: 1px solid var(--bali-border);
}

.card-status.passed {
  background: rgba(0, 200, 160, 0.12);
  color: var(--bali-emerald);
  border: 1px solid rgba(0, 200, 160, 0.3);
}

.card-status.locked-status {
  background: rgba(255, 255, 255, 0.05);
  color: var(--bali-muted);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 14, 26, 0.7);
  border-radius: var(--radius);
  font-size: 2rem;
}

/* ===== CONTENT PAGE ===== */
.content-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  position: relative;
  z-index: 1;
}

.page-header {
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
  z-index: -1;
}

.page-chapter-num {
  font-size: 0.72rem;
  color: var(--bali-gold);
  letter-spacing: 0.25em;
  margin-bottom: 12px;
  display: block;
}

.page-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--bali-text);
}

.page-title span {
  background: linear-gradient(135deg, var(--bali-gold2), var(--bali-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-lead {
  font-size: 0.95rem;
  color: var(--bali-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.9;
}

/* ===== ARTICLE CONTENT ===== */
.article {
  margin-bottom: 60px;
}

.article h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  color: var(--bali-gold);
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--bali-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article h2::before {
  content: '◆';
  font-size: 0.7rem;
  color: var(--bali-emerald);
}

.article h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.1rem;
  color: var(--bali-text);
  margin: 32px 0 12px;
}

.article p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--bali-text);
  margin-bottom: 20px;
}

.article .quote-block {
  margin: 32px 0;
  padding: 24px 28px;
  background: rgba(212, 175, 55, 0.06);
  border-left: 3px solid var(--bali-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  position: relative;
}

.article .quote-block::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 16px;
  font-size: 3rem;
  color: var(--bali-gold);
  opacity: 0.3;
  font-family: serif;
  line-height: 1;
}

.article .quote-block p {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem;
  color: var(--bali-gold2);
  font-style: italic;
  line-height: 1.9;
  margin: 0;
}

.article .quote-block .quote-source {
  font-size: 0.78rem;
  color: var(--bali-muted);
  margin-top: 10px;
  font-style: normal;
  font-family: 'Noto Sans JP', sans-serif;
}

.article .highlight-box {
  margin: 32px 0;
  padding: 24px 28px;
  background: rgba(0, 200, 160, 0.06);
  border: 1px solid rgba(0, 200, 160, 0.2);
  border-radius: var(--radius);
}

.article .highlight-box h4 {
  font-size: 0.78rem;
  color: var(--bali-emerald);
  letter-spacing: 0.15em;
  margin-bottom: 10px;
}

.article .highlight-box p {
  font-size: 0.9rem;
  color: var(--bali-text);
  margin: 0;
}

.article .secret-card {
  margin: 32px 0;
  padding: 28px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, rgba(0, 200, 160, 0.04) 100%);
  border: 1px solid var(--bali-border);
  border-radius: var(--radius);
  text-align: center;
}

.secret-card .secret-num {
  font-size: 0.72rem;
  color: var(--bali-gold);
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}

.secret-card .secret-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--bali-gold2);
  margin: 0;
}

.article .divider {
  text-align: center;
  margin: 40px 0;
  color: var(--bali-gold);
  opacity: 0.4;
  letter-spacing: 0.5em;
  font-size: 0.8rem;
}

/* ===== SCROLL ANIMATION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== QUIZ SECTION ===== */
.quiz-section {
  margin-top: 60px;
  padding: 40px 32px;
  background: var(--bali-card);
  border: 1px solid var(--bali-border);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.quiz-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
}

.quiz-header {
  text-align: center;
  margin-bottom: 32px;
}

.quiz-header h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.3rem;
  color: var(--bali-gold);
  margin-bottom: 8px;
}

.quiz-header p {
  font-size: 0.85rem;
  color: var(--bali-muted);
}

.quiz-progress-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.quiz-progress-bar-wrap {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.quiz-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
  border-radius: 2px;
  transition: width 0.4s ease;
}

.quiz-progress-label {
  font-size: 0.75rem;
  color: var(--bali-muted);
  white-space: nowrap;
}

.quiz-question-block {
  display: none;
}

.quiz-question-block.active {
  display: block;
  animation: fadeSlideIn 0.4s ease;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.quiz-q-num {
  font-size: 0.72rem;
  color: var(--bali-gold);
  letter-spacing: 0.15em;
  margin-bottom: 10px;
}

.quiz-q-text {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.05rem;
  color: var(--bali-text);
  line-height: 1.7;
  margin-bottom: 20px;
}

.quiz-choices {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-choice {
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--bali-text);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}

.quiz-choice:hover:not(.answered) {
  background: rgba(212, 175, 55, 0.08);
  border-color: var(--bali-border);
  color: var(--bali-gold2);
}

.quiz-choice.hint {
  background: rgba(212, 175, 55, 0.05);
  border-color: rgba(212, 175, 55, 0.2);
}

.quiz-choice .choice-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

.quiz-choice.correct {
  background: rgba(0, 200, 160, 0.12);
  border-color: rgba(0, 200, 160, 0.4);
  color: var(--bali-emerald);
}

.quiz-choice.correct .choice-label {
  background: var(--bali-emerald);
  color: #0A1628;
}

.quiz-choice.wrong {
  background: rgba(220, 50, 50, 0.1);
  border-color: rgba(220, 50, 50, 0.3);
  color: #ff7070;
}

.quiz-choice.wrong .choice-label {
  background: rgba(220, 50, 50, 0.5);
  color: #fff;
}

.quiz-explanation {
  margin-top: 14px;
  padding: 12px 16px;
  background: rgba(212, 175, 55, 0.06);
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--bali-muted);
  line-height: 1.7;
  display: none;
}

.quiz-explanation.show {
  display: block;
  animation: fadeSlideIn 0.3s ease;
}

/* ===== QUIZ RESULT ===== */
.quiz-result {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.quiz-result.show {
  display: block;
  animation: fadeSlideIn 0.5s ease;
}

.result-score {
  font-size: 3.5rem;
  font-weight: 900;
  font-family: 'Noto Serif JP', serif;
  margin-bottom: 8px;
}

.result-score.pass {
  color: var(--bali-gold);
}

.result-score.fail {
  color: #ff7070;
}

.result-label {
  font-size: 1rem;
  color: var(--bali-muted);
  margin-bottom: 24px;
}

.result-message {
  font-size: 0.9rem;
  color: var(--bali-text);
  line-height: 1.8;
  max-width: 360px;
  margin: 0 auto 28px;
}

.result-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.result-btn.next {
  background: linear-gradient(135deg, var(--bali-gold), var(--bali-gold2));
  color: #0A1628;
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
}

.result-btn.next:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(212, 175, 55, 0.5);
}

.result-btn.retry {
  background: rgba(255, 255, 255, 0.06);
  color: var(--bali-text);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.result-btn.retry:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ===== PASS POPUP ===== */
.pass-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.pass-popup-overlay.show {
  display: flex;
}

.pass-popup {
  background: linear-gradient(135deg, #0D1B2A 0%, #0A1628 100%);
  border: 1px solid var(--bali-border);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  position: relative;
  animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(212, 175, 55, 0.1);
}

@keyframes popIn {
  from {
    transform: scale(0.7);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.pass-popup::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bali-gold), var(--bali-emerald));
  border-radius: 20px 20px 0 0;
}

.pass-popup-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
  animation: float 2s ease-in-out infinite;
}

.pass-popup h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  color: var(--bali-gold);
  margin-bottom: 10px;
}

.pass-popup p {
  font-size: 0.88rem;
  color: var(--bali-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}

.pass-popup .popup-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--bali-gold), var(--bali-gold2));
  color: #0A1628;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
}

.pass-popup .popup-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(212, 175, 55, 0.5);
}

/* ===== CANVAS CONFETTI ===== */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1999;
  display: none;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(15, 25, 45, 0.95);
  border: 1px solid var(--bali-border);
  border-radius: 50px;
  padding: 12px 24px;
  font-size: 0.85rem;
  color: var(--bali-text);
  z-index: 3000;
  transition: transform 0.4s ease;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ===== GIFT PAGE ===== */
.gift-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gift-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(212, 175, 55, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 30% 70%, rgba(0, 200, 160, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #060E1A 0%, #0A1628 100%);
  z-index: -1;
}

.gift-icon {
  font-size: 5rem;
  margin-bottom: 24px;
  animation: float 3s ease-in-out infinite;
}

.gift-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--bali-gold2), var(--bali-gold), var(--bali-emerald));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.gift-subtitle {
  font-size: 1rem;
  color: var(--bali-muted);
  max-width: 480px;
  margin: 0 auto 48px;
  line-height: 1.9;
}

.gift-keyword-box {
  background: var(--bali-card);
  border: 1px solid var(--bali-border);
  border-radius: 16px;
  padding: 32px;
  max-width: 480px;
  width: 100%;
  margin: 0 auto 32px;
}

.gift-keyword-label {
  font-size: 0.72rem;
  color: var(--bali-gold);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}

.gift-keyword {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.3rem;
  color: var(--bali-gold2);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--bali-border);
  border-radius: 8px;
  color: var(--bali-gold);
  font-size: 0.82rem;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: rgba(212, 175, 55, 0.2);
}

.gift-line-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: #06C755;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(6, 199, 85, 0.35);
}

.gift-line-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(6, 199, 85, 0.5);
}

/* ===== FOOTER ===== */
.site-footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--bali-border);
  font-size: 0.78rem;
  color: var(--bali-muted);
  position: relative;
  z-index: 1;
}

.site-footer a {
  color: var(--bali-gold);
  text-decoration: none;
}

/* ===== PARTICLES ===== */
.particle {
  position: fixed;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--bali-gold);
  pointer-events: none;
  z-index: 0;
  animation: particleDrift linear infinite;
  opacity: 0;
}

@keyframes particleDrift {
  0% {
    transform: translateY(100vh) translateX(0);
    opacity: 0;
  }

  10% {
    opacity: 0.4;
  }

  90% {
    opacity: 0.2;
  }

  100% {
    transform: translateY(-10vh) translateX(var(--drift));
    opacity: 0;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .quiz-section {
    padding: 28px 20px;
  }

  .pass-popup {
    padding: 36px 24px;
  }

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