/* ============================================
   LDM Earth Journey - Shared Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;600;700;900&family=Zen+Kaku+Gothic+New:wght@400;500;700;900&family=Klee+One:wght@400;600&family=Cormorant+Garamond:wght@400;500;600;700&family=Caveat:wght@400;700&display=swap');

:root {
  /* Cosmic / Earth palette - inspired by hero watercolor */
  --cosmic-deep: #1a1340;
  --cosmic-purple: #5b3d8a;
  --cosmic-violet: #8c5fb8;
  --cosmic-blue: #3a6dc4;
  --sky-cyan: #6fb8d9;
  --sky-soft: #b9dce8;
  --sun-gold: #f4cc6a;
  --sun-warm: #f5a847;
  --earth-leaf: #88b56a;
  --earth-deep: #4a6b3e;
  --earth-cream: #f5efe1;
  --earth-sand: #e8d9b5;
  --earth-clay: #c47d52;
  --pure-white: #ffffff;
  --ink: #2a2238;
  --ink-soft: #5a5168;

  /* Type stacks */
  --serif-jp: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', serif;
  --sans-jp: 'Zen Kaku Gothic New', 'Hiragino Sans', 'Yu Gothic UI', sans-serif;
  --hand-jp: 'Klee One', 'Yu Mincho', serif;
  --serif-en: 'Cormorant Garamond', serif;
  --hand-en: 'Caveat', cursive;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans-jp);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* === Mobile / PC switch === */
#lp-mobile { display: none; }
#lp-pc { display: block; }
@media (max-width: 900px) {
  #lp-mobile { display: block; }
  #lp-pc { display: none; }
}

/* Utility: device frame for the canvas */
.lp-frame {
  position: relative;
  width: 420px;
  height: 880px;
  overflow-y: auto;
  overflow-x: hidden;
  background: white;
  border-radius: 18px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.25);
  scrollbar-width: thin;
  scrollbar-color: rgba(0,0,0,0.2) transparent;
}
.lp-frame::-webkit-scrollbar { width: 6px; }
.lp-frame::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 3px; }

.lp-frame-pc {
  width: 1100px;
  height: 880px;
  overflow-y: auto;
  background: white;
  border-radius: 14px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.25);
}

/* ===== ANIMATIONS ===== */

/* 1. 星のキラキラ点滅 */
@keyframes twinkle {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}
.anim-twinkle { animation: twinkle 3s ease-in-out infinite; }

/* 2. 水彩バックグラウンドの浮遊 */
@keyframes float-slow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(15px, -20px) scale(1.05); }
  66% { transform: translate(-10px, 12px) scale(0.97); }
}
.anim-float-slow { animation: float-slow 14s ease-in-out infinite; }

@keyframes float-slow-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-18px, 20px) scale(1.06); }
}
.anim-float-slow-2 { animation: float-slow-2 18s ease-in-out infinite; }

/* 3. スクロールフェードイン */
.anim-fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease-out, transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.anim-fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* 4. カードホバー浮き上がり */
.anim-card-hover {
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
  will-change: transform;
}
.anim-card-hover:hover {
  transform: translateY(-6px) rotate(0deg) !important;
}

/* 5. ポラロイドぴょこんホバー */
.anim-polaroid {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.anim-polaroid:hover {
  transform: translateY(-10px) rotate(0deg) scale(1.04) !important;
  z-index: 10;
}

/* 6. CTAボタンのオーラ脈打ち */
@keyframes pulse-aura {
  0%, 100% { box-shadow: 0 0 30px rgba(124, 197, 124, 0.55), 0 8px 24px rgba(0,0,0,0.3); }
  50% { box-shadow: 0 0 60px rgba(124, 197, 124, 0.85), 0 0 100px rgba(124, 197, 124, 0.35), 0 8px 24px rgba(0,0,0,0.3); }
}
.anim-cta-pulse { animation: pulse-aura 2.4s ease-in-out infinite; }

/* 7. ふわふわボタン */
@keyframes gentle-bob {
  0%, 100% { transform: rotate(-1deg) translateY(0); }
  50% { transform: rotate(-1deg) translateY(-4px); }
}
.anim-bob { animation: gentle-bob 3.2s ease-in-out infinite; }

/* 8. ホバー時の傾き戻し（カードに装飾的に） */
.anim-tilt-hover {
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
}
.anim-tilt-hover:hover {
  transform: translateY(-4px) rotate(0deg) !important;
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .anim-twinkle, .anim-float-slow, .anim-float-slow-2, .anim-cta-pulse, .anim-bob {
    animation: none !important;
  }
  .anim-fade-up { opacity: 1; transform: none; }
}