@import url('https://fonts.googleapis.com/css2?family=Yusei+Magic&family=Caveat:wght@700&family=Mochiy+Pop+One&display=swap');

/* --- Base Variables & Theme --- */
:root {
  --bg-color: #fffdf0;
  --line-color: #16211a;
  --marker-yellow: #fff37a;
  --marker-pink: #ff7ad6;
  --marker-blue: #7adeff;
  --marker-green: #7aff9e;
  --primary-kochan: #2b6ef2;
  --primary-noe: #ff7a1a;
  --sketch-font: 'Yusei Magic', 'Mochiy Pop One', sans-serif;
  --hand-font: 'Caveat', cursive;
}

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

body {
  background-color: var(--bg-color);
  color: var(--line-color);
  font-family: var(--sketch-font);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  /* ノートの罫線風背景 */
  background-image: 
    linear-gradient(rgba(22, 33, 26, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 33, 26, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
}

/* --- Doodle Components --- */

/* 手書き風の歪んだボーダー */
.doodle-box {
  background: #ffffff;
  border: 3px solid var(--line-color);
  border-radius: 255px 15px 225px 15px/15px 225px 15px 255px;
  box-shadow: 8px 8px 0px var(--line-color);
  padding: 24px;
  margin-bottom: 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.doodle-box:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0px var(--line-color);
}

.doodle-box.kochan-style {
  border-color: var(--primary-kochan);
  box-shadow: 8px 8px 0px var(--primary-kochan);
}
.doodle-box.kochan-style:hover {
  box-shadow: 10px 10px 0px var(--primary-kochan);
}

.doodle-box.noe-style {
  border-color: var(--primary-noe);
  box-shadow: 8px 8px 0px var(--primary-noe);
}
.doodle-box.noe-style:hover {
  box-shadow: 10px 10px 0px var(--primary-noe);
}

/* クレヨン風の手書き文字見出し */
h1, h2, h3 {
  font-family: var(--sketch-font);
  font-weight: 900;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

h1 {
  font-size: clamp(24px, 5vw, 42px);
  transform: rotate(-1.5deg);
  text-shadow: 2px 2px 0px rgba(0,0,0,0.15);
}

h2 {
  font-size: clamp(20px, 4vw, 28px);
  background: var(--marker-yellow);
  padding: 2px 12px;
  border-radius: 8px 4px 10px 2px;
  transform: rotate(1deg);
  margin-top: 10px;
}

h3 {
  font-size: clamp(16px, 3vw, 20px);
  background: var(--marker-blue);
  padding: 1px 8px;
  border-radius: 4px;
  transform: rotate(-0.5deg);
}

/* マーカー風の蛍光ペン強調 */
.marker-highlight {
  background: linear-gradient(transparent 60%, var(--marker-green) 40%);
  padding: 0 4px;
}
.marker-highlight-pink {
  background: linear-gradient(transparent 60%, var(--marker-pink) 40%);
  padding: 0 4px;
}

/* クレヨン風の手書きボタン */
.doodle-btn {
  font-family: var(--sketch-font);
  font-size: 16px;
  font-weight: bold;
  color: var(--line-color);
  background: #ffffff;
  border: 3px solid var(--line-color);
  border-radius: 255px 25px 225px 25px/25px 225px 25px 255px;
  padding: 10px 20px;
  cursor: pointer;
  box-shadow: 4px 4px 0px var(--line-color);
  transition: all 0.15s ease;
  outline: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.doodle-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0px var(--line-color);
  background: var(--marker-yellow);
}

.doodle-btn:active {
  transform: translate(3px, 3px);
  box-shadow: 1px 1px 0px var(--line-color);
}

.doodle-btn.primary {
  background: var(--marker-blue);
}
.doodle-btn.danger {
  background: var(--marker-pink);
}
.doodle-btn.success {
  background: var(--marker-green);
}

/* 入力フォーム */
.doodle-input, .doodle-textarea {
  font-family: var(--sketch-font);
  font-size: 15px;
  border: 3px solid var(--line-color);
  border-radius: 12px 6px 14px 4px/5px 12px 6px 14px;
  padding: 10px 14px;
  width: 100%;
  background: #ffffff;
  color: var(--line-color);
  outline: none;
}

.doodle-input:focus, .doodle-textarea:focus {
  background: #fffdf0;
  border-color: var(--primary-kochan);
}

/* --- Layout --- */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px 100px;
  position: relative;
  z-index: 10;
}

/* ヘッダー */
header {
  text-align: center;
  margin-bottom: 48px;
  position: relative;
}

.header-banner {
  display: inline-block;
  background: var(--line-color);
  color: #ffffff;
  padding: 12px 32px;
  border-radius: 16px 8px 20px 12px/8px 20px 12px 16px;
  margin-bottom: 24px;
  box-shadow: 6px 6px 0px var(--primary-noe);
  transform: rotate(-1deg);
}

.header-banner h1 {
  text-shadow: none;
  transform: none;
  margin-bottom: 0;
}

.collab-image-container {
  max-width: 450px;
  margin: 20px auto;
  border: 4px solid var(--line-color);
  border-radius: 30px 15px 40px 20px/20px 30px 20px 40px;
  box-shadow: 10px 10px 0px var(--line-color);
  overflow: hidden;
  background: #ffffff;
}

.collab-image-container img {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Step Timeline --- */
.timeline {
  position: relative;
  margin: 32px 0;
  padding-left: 20px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 5px;
  width: 4px;
  background: var(--line-color);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
  padding-left: 24px;
}

.timeline-dot {
  position: absolute;
  left: -2px;
  top: 6px;
  width: 18px;
  height: 18px;
  border: 3px solid var(--line-color);
  border-radius: 50%;
  background: #ffffff;
  z-index: 2;
}

.timeline-item.kochan .timeline-dot {
  background: var(--primary-kochan);
}
.timeline-item.noe .timeline-dot {
  background: var(--primary-noe);
}
.timeline-item.collab .timeline-dot {
  background: var(--marker-yellow);
}

/* --- Canvas Container for Banana Rain --- */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none; /* クリックを透過 */
  z-index: 100;
}

#banana-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* 物理エンジン操作エリアのバッジ風 */
.toy-console {
  background: #222222;
  color: #00ff66;
  font-family: ui-monospace, Menlo, Monaco, Consolas, monospace;
  padding: 16px;
  border-radius: 8px;
  border: 3px solid var(--line-color);
  box-shadow: 6px 6px 0px var(--line-color);
  margin-top: 16px;
  font-size: 14px;
  max-height: 250px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* --- Floating Doodles --- */
.floating-banana {
  position: absolute;
  width: 60px;
  height: 60px;
  z-index: 1;
  pointer-events: none;
  opacity: 0.85;
}

/* --- Konami Code Overlay --- */
#hyper-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-family: var(--sketch-font);
  text-align: center;
}

#hyper-overlay h2 {
  font-size: 48px;
  color: #fff37a;
  text-shadow: 0 0 10px #ff00ff, 0 0 20px #00ffff;
  background: none;
  transform: rotate(-5deg);
  margin-bottom: 24px;
}

/* --- Responsive Layout --- */
@media (max-width: 600px) {
  .container {
    padding: 20px 10px 80px;
  }
  .doodle-box {
    padding: 16px;
  }
}