/* ============================================
   LOVE ENCOUNT - Teaser Site Styles
   線画＋淡い水彩風 / パーウィンクルブルー × ダスティローズ
   ============================================ */

/* --- Custom Properties (Design System v2) --- */
:root {
  /* Sky — 空・大気 */
  --sky-0: #F4F7FB;
  --sky-1: #DDE8F2;
  --sky-2: #C2D4E8;
  --sky-3: #9AB8D4;
  --sky-4: #6E97BB;
  --sky-5: #4A7499;

  /* Terracotta — 屋根・アクセント */
  --terra-0: #FBF2EF;
  --terra-1: #F2D9D0;
  --terra-2: #E8BFB0;
  --terra-3: #D99A84;
  --terra-4: #C4785D;
  --terra-5: #A8573E;

  /* Stone — 建物ファサード */
  --stone-0: #FAFAF8;
  --stone-1: #F2F0EA;
  --stone-2: #E4E0D4;
  --stone-3: #C8C2AE;
  --stone-4: #A09888;
  --stone-5: #706860;

  /* Ink — 線画・テキスト */
  --ink-0: #EBEEF4;
  --ink-1: #C8CEDC;
  --ink-2: #9AA4BC;
  --ink-3: #6878A0;
  --ink-4: #475880;
  --ink-5: #2C3B60;

  /* Water — 水辺 */
  --water-1: #D4E6F4;
  --water-2: #B8D4EC;
  --water-3: #8CB8D8;

  /* Sage — 植生 */
  --sage-1: #D4DECE;
  --sage-2: #B0C0A4;
  --sage-3: #8A9E7C;

  /* Semantic Aliases */
  --bg-primary:    var(--sky-0);
  --bg-secondary:  var(--stone-1);
  --text-primary:  var(--ink-5);
  --text-secondary:var(--ink-3);
  --accent:        var(--terra-3);
  --accent-light:  var(--terra-1);
  --accent-dark:   var(--terra-5);
  --line-drawing:  var(--ink-4);
  --watercolor:    var(--sky-3);
  --watercolor-deep:var(--sky-4);
  --watercolor-warm:var(--terra-1);
  --border:        var(--stone-2);
  --border-soft:   var(--sky-1);

  /* Typography */
  --font-title:      'Playfair Display', Georgia, serif;
  --font-display:    'Bebas Neue', sans-serif;
  --font-condensed:  'Barlow Condensed', sans-serif;
  --font-body:       'Noto Sans JP', sans-serif;

  /* Legacy aliases for compatibility */
  --font-serif-jp: 'Noto Sans JP', sans-serif;
  --font-sans-jp: 'Noto Sans JP', sans-serif;
  --font-display-en: 'Bebas Neue', sans-serif;
  --font-body-en: 'Barlow Condensed', sans-serif;

  /* Shadow */
  --shadow-sm: 0 2px 8px rgba(44,59,96,.08), 0 1px 2px rgba(44,59,96,.04);
  --shadow-md: 0 6px 20px rgba(44,59,96,.11), 0 2px 6px rgba(44,59,96,.06);
  --shadow-terra: 0 4px 16px rgba(196,120,93,.22);

  /* Animation */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Site Header (scroll-triggered) --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.4s var(--ease-out), opacity 0.4s var(--ease-out);
}

.site-header.visible {
  transform: translateY(0);
  opacity: 1;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ink-5);
}

.header-cta-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  background: var(--terra-4);
  padding: 8px 20px;
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header-cta-btn:hover {
  background: var(--terra-5);
  box-shadow: var(--shadow-terra);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans-jp);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-serif-jp);
  font-weight: 400;
  line-height: 1.4;
}

.en-display {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.en-body {
  font-family: var(--font-body-en);
  font-weight: 300;
}

/* --- Layout --- */
.section {
  position: relative;
  width: 100%;
  padding: 100px 24px;
}

.section-inner {
  max-width: 960px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--watercolor-deep);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 2px;
  background: linear-gradient(to right, var(--terra-2), var(--sky-3));
  margin-top: 20px;
  border-radius: 1px;
}

/* ============================================
   Section 1: Hero / First View
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 60px 24px;
  background: url('assets/loveencount_kv2.png') center center / cover no-repeat;
}

/* Light overlay for text readability */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(244, 247, 251, 0.45);
  z-index: 0;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.2;
  pointer-events: none;
}

.hero-bg svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-event-name {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ink-5);
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1.2s ease 0.3s forwards;
  text-shadow: 0 2px 16px rgba(244, 247, 251, 0.6);
}

.hero-copy {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.2rem, 3.5vw, 1.8rem);
  font-weight: 700;
  color: var(--ink-5);
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1.2s ease 0.7s forwards;
  text-shadow: 0 0 12px rgba(255,255,255,0.9), 0 0 24px rgba(255,255,255,0.6);
}

.hero-sub {
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  color: var(--terra-5);
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1.2s ease 1.0s forwards;
  text-shadow: 0 0 12px rgba(255,255,255,0.9), 0 0 24px rgba(255,255,255,0.6);
}


/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 1s ease 1.8s forwards;
}

/* Scroll mouse icon */
.scroll-mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--ink-3);
  border-radius: 12px;
  position: relative;
  margin-bottom: 8px;
}

.scroll-mouse-wheel {
  width: 3px;
  height: 8px;
  background: var(--ink-3);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 1.8s ease-in-out infinite;
}

@keyframes scrollWheel {
  0%   { opacity: 1; transform: translateX(-50%) translateY(0); }
  60%  { opacity: 0.3; transform: translateX(-50%) translateY(12px); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

.scroll-label {
  font-family: var(--font-condensed);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ============================================
   Section 2: Concept
   ============================================ */
.concept {
  background-color: var(--bg-secondary);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(194,212,232,0.2) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(242,217,208,0.2) 0%, transparent 60%);
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 48px;
}

.concept-card {
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.concept-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.concept-card:nth-child(2) {
  transition-delay: 0.2s;
}

.concept-card:nth-child(3) {
  transition-delay: 0.4s;
}

.concept-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  position: relative;
}

.concept-icon svg {
  width: 100%;
  height: 100%;
  filter: url(#sketchy-sm);
}

.cta-illustration svg {
  filter: url(#sketchy-sm);
}

.concept-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--terra-1) 0%, transparent 70%);
  opacity: 0;
  z-index: -1;
  transition: opacity 0.8s ease;
}

.concept-card.visible .concept-icon::after {
  opacity: 0.35;
}

.concept-card:nth-child(2) .concept-icon::after {
  background: radial-gradient(ellipse, var(--sky-2) 0%, transparent 70%);
}

.concept-card:nth-child(3) .concept-icon::after {
  background: radial-gradient(ellipse, var(--terra-2) 0%, transparent 70%);
}

.concept-number {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--watercolor-deep);
  margin-bottom: 8px;
}

.concept-keyword {
  font-family: var(--font-serif-jp);
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.concept-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============================================
   Section 3: Experience Timeline
   ============================================ */
.timeline {
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 70% 20%, rgba(242,217,208,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 80%, rgba(194,212,232,0.18) 0%, transparent 50%);
}

.timeline-container {
  position: relative;
  padding-left: 60px;
}

.timeline-container::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--watercolor) 10%, var(--accent-light) 50%, var(--watercolor) 90%, transparent);
  border-radius: 1px;
}

.timeline-day {
  margin-bottom: 64px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.timeline-day.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-day:last-child {
  margin-bottom: 0;
}

.timeline-day-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--watercolor-deep);
  margin-bottom: 24px;
  position: relative;
}

.timeline-day-label::before {
  content: '';
  position: absolute;
  left: -48px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--watercolor-deep);
  background: var(--bg-primary);
}

.timeline-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.55);
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.timeline-item:hover {
  box-shadow: var(--shadow-sm);
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--watercolor);
  opacity: 0;
  transition: opacity 0.6s ease;
  z-index: 0;
}

.timeline-day.visible .timeline-item::before {
  opacity: 0.06;
}

.timeline-item-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.timeline-item-icon svg {
  width: 100%;
  height: 100%;
}

.timeline-item-content {
  position: relative;
  z-index: 1;
}

.timeline-item-time {
  font-family: var(--font-body-en);
  font-size: 0.75rem;
  color: var(--watercolor-deep);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.timeline-item-title {
  font-family: var(--font-serif-jp);
  font-size: 1rem;
  margin-bottom: 4px;
}

.timeline-item-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.timeline-mystery {
  text-align: center;
  padding: 32px;
  font-family: var(--font-serif-jp);
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
  opacity: 0;
  transition: opacity 1s ease 0.3s;
}

.timeline-day.visible .timeline-mystery {
  opacity: 1;
}

/* ============================================
   Section 4: Event Info
   ============================================ */
.info {
  background-color: var(--bg-secondary);
  background-image:
    radial-gradient(ellipse at 50% 50%, rgba(194,212,232,0.12) 0%, transparent 60%);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.info-card {
  padding: 32px;
  background: rgba(255,255,255,0.55);
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.info-card:hover {
  box-shadow: var(--shadow-sm);
}

.info-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.info-card:nth-child(2) { transition-delay: 0.1s; }
.info-card:nth-child(3) { transition-delay: 0.2s; }
.info-card:nth-child(4) { transition-delay: 0.3s; }

/* --- Launch Condition (200人で開催決定) --- */
.launch-condition {
  margin-top: 64px;
  padding: 48px 40px;
  background: rgba(255,255,255,0.6);
  border-radius: 16px;
  border: 1.5px solid var(--sky-2);
  text-align: center;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 0.4s, transform 0.8s ease 0.4s;
}

.launch-condition.visible {
  opacity: 1;
  transform: translateY(0);
}

.launch-condition::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(242,217,208,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(194,212,232,0.12) 0%, transparent 60%);
  pointer-events: none;
}

.launch-condition-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 20px;
  border: 1px solid var(--watercolor-deep);
  border-radius: 20px;
  margin-bottom: 20px;
}

.launch-condition-badge-text {
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--watercolor-deep);
}

.launch-condition-title {
  font-family: var(--font-serif-jp);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 12px;
  position: relative;
}

.launch-condition-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.launch-countdown {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--terra-4);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.countdown-days {
  font-size: 2rem;
  font-weight: 700;
  color: var(--terra-5);
}

.launch-condition-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 32px;
  position: relative;
}

.launch-progress {
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}

.launch-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.launch-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--sky-3), var(--terra-3));
  border-radius: 4px;
  transition: width 1.5s ease;
  position: relative;
}

.launch-progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: -2px;
  width: 12px;
  height: 12px;
  background: var(--terra-3);
  border-radius: 50%;
  box-shadow: var(--shadow-terra);
}

.launch-progress-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-size: 0.8rem;
}

.launch-progress-current {
  color: var(--accent);
  font-family: var(--font-serif-jp);
}

.launch-progress-count {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
}

.launch-progress-goal {
  color: var(--text-secondary);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.info-card-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--watercolor-deep);
  margin-bottom: 12px;
}

.info-card-value {
  font-family: var(--font-serif-jp);
  font-size: 1.3rem;
}

.info-card-note {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ============================================
   Section 5: CTA + Footer
   ============================================ */
.cta {
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 50% 80%, rgba(194,212,232,0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 20%, rgba(242,217,208,0.15) 0%, transparent 50%);
  text-align: center;
  padding: 100px 24px 60px;
}

.cta-message {
  font-family: var(--font-serif-jp);
  font-size: 1.3rem;
  margin-bottom: 40px;
  line-height: 2;
}

.cta-sub-message {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  letter-spacing: 0.02em;
}

.cta-button {
  display: inline-block;
  padding: 18px 60px;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-serif-jp);
  font-size: 1rem;
  letter-spacing: 0.1em;
  border-radius: 60px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: transparent;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--terra-3), var(--terra-4));
  transition: left 0.4s ease;
  z-index: 0;
}

.cta-button:hover {
  color: #fff;
  opacity: 1;
  border-color: var(--terra-4);
}

.cta-button:hover::before {
  left: 0;
}

.cta-button span {
  position: relative;
  z-index: 1;
}

.cta-note {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.cta-illustration {
  width: min(300px, 60vw);
  margin: 60px auto 0;
  opacity: 0.6;
}

/* Footer */
.footer {
  padding: 48px 24px 32px;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-disclaimer {
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto 24px;
  opacity: 0.7;
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-divider {
  color: var(--border);
  font-size: 0.7rem;
}

.footer-company {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.footer-company a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-copyright {
  font-family: var(--font-body-en);
  font-size: 0.65rem;
  color: var(--text-secondary);
  opacity: 0.6;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

/* SVG Drawing Animation */
.draw-animation {
  stroke-dasharray: var(--path-length, 1000);
  stroke-dashoffset: var(--path-length, 1000);
  animation: drawLine 3s ease forwards;
}

@keyframes drawLine {
  to {
    stroke-dashoffset: 0;
  }
}

/* Watercolor reveal */
.watercolor-reveal {
  opacity: 0;
  transition: opacity 1.5s ease;
}

.watercolor-reveal.active {
  opacity: 0.15;
}

/* Parallax layers */
.parallax-layer {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 80px 20px;
  }

  .section-title {
    font-size: 1.4rem;
    margin-bottom: 36px;
  }

  .concept-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .concept-card:nth-child(2) { transition-delay: 0s; }
  .concept-card:nth-child(3) { transition-delay: 0s; }

  .timeline-container {
    padding-left: 40px;
  }

  .timeline-container::before {
    left: 10px;
  }

  .timeline-day-label::before {
    left: -36px;
  }

  .timeline-item {
    flex-direction: column;
    gap: 12px;
  }

  .info-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cta-button {
    padding: 16px 48px;
    font-size: 0.9rem;
  }

  .launch-condition {
    padding: 36px 24px;
    margin-top: 48px;
  }

  .launch-condition-title {
    font-size: 1.25rem;
  }

  .launch-condition-number {
    font-size: 1.8rem;
  }

  .launch-condition-desc {
    font-size: 0.8rem;
  }
}

@media (max-width: 375px) {
  html {
    font-size: 14px;
  }

  .hero-event-name {
    letter-spacing: -0.01em;
  }

  .section {
    padding: 60px 16px;
  }
}

/* --- Utility --- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Grain texture overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}