/* ======================================
   薬院習字 — Style (6-Brush System)
   ====================================== */

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

html, body {
  width: 100%; height: 100dvh; overflow: hidden;
  touch-action: none; -webkit-touch-callout: none;
  -webkit-user-select: none; user-select: none;
  background: #faf8f5; position: fixed; inset: 0;
}

#washi-bg {
  position: fixed; inset: 0; z-index: 0;
  background: url("assets/washi.png") center / cover no-repeat;
  background-color: #f5f0e8;
}

#canvas {
  position: fixed; inset: 0; z-index: 1;
  width: 100%; height: 100%;
  touch-action: none; cursor: crosshair;
}

#transition-overlay {
  position: fixed; inset: 0; z-index: 10;
  background: #faf8f5; opacity: 0;
  pointer-events: none; transition: opacity 0.15s ease-in;
}
#transition-overlay.flash { opacity: 1; transition: opacity 0.05s ease-in; }
#transition-overlay.fade-out { opacity: 0; transition: opacity 0.4s ease-out; }

/* ═══════════════════════════════════
   Rakkan Stamp
   ═══════════════════════════════════ */
#rakkan {
  position: fixed; z-index: 20;
  width: 52px; height: 52px; object-fit: contain;
  pointer-events: auto; bottom: 20px; left: 20px;
  opacity: 0.55; transform: scale(1);
  transition: opacity 0.2s ease, transform 0.2s ease;
  padding: 6px; -webkit-tap-highlight-color: transparent;
}
#rakkan:active { opacity: 1; transform: scale(0.9); }
#rakkan.game-active { opacity: 0.9; filter: drop-shadow(0 0 6px rgba(180,60,40,0.5)); }

@supports (padding-bottom: env(safe-area-inset-bottom)) {
  #rakkan {
    bottom: calc(20px + env(safe-area-inset-bottom));
    left: calc(20px + env(safe-area-inset-left));
  }
}

/* ═══════════════════════════════════
   Brush Change Button (top-right)
   ═══════════════════════════════════ */
#brush-change-btn {
  position: fixed; z-index: 20;
  top: 16px; right: 16px;
  width: 44px; height: 44px;
  border: 1.5px solid rgba(42,37,32,0.25);
  border-radius: 50%;
  background: rgba(250,248,245,0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: "Shippori Mincho", serif;
  font-size: 1.1rem; font-weight: 700;
  color: #2a2520; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.2s ease, transform 0.15s ease;
}
#brush-change-btn:active { transform: scale(0.9); opacity: 0.7; }

@supports (padding-top: env(safe-area-inset-top)) {
  #brush-change-btn { top: calc(16px + env(safe-area-inset-top)); }
}

/* ═══════════════════════════════════
   Brush Selector Panel
   ═══════════════════════════════════ */
#brush-panel {
  position: fixed; inset: 0; z-index: 150;
  display: flex; align-items: center; justify-content: center;
  background: rgba(250,248,245,0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease;
}
#brush-panel.visible { opacity: 1; pointer-events: auto; }

.brush-panel-inner { text-align: center; width: 90%; max-width: 420px; }

.brush-panel-title {
  font-family: "Shippori Mincho", serif;
  font-size: 1.6rem; font-weight: 700;
  color: #2a2520; letter-spacing: 0.4em;
  margin-bottom: 2rem;
}

.brush-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.brush-option {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px; padding: 16px 8px;
  border: 2px solid rgba(42,37,32,0.12);
  border-radius: 12px;
  background: rgba(255,255,255,0.5);
  cursor: pointer; -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
  font-family: "Shippori Mincho", serif;
}

.brush-option:active { transform: scale(0.95); }

.brush-option.active {
  border-color: #2a2520;
  background: rgba(42,37,32,0.06);
}

/* ── Brush stroke previews (CSS-drawn) ── */
.brush-stroke {
  display: block;
  width: 48px; height: 14px;
  margin: 6px auto;
  border-radius: 7px;
  background: #2a2520;
}
.stroke-thick {
  height: 18px; border-radius: 9px;
  background: #1a1510;
}
.stroke-std {
  height: 10px; border-radius: 5px 2px 5px 2px;
  background: linear-gradient(90deg, #1a1510 0%, #1a1510 60%, #7a6a5a 100%);
}
.stroke-thin {
  height: 2px; border-radius: 1px;
  width: 44px;
  background: #2a2520;
}
.stroke-sharp {
  height: 8px; border-radius: 1px 4px 1px 0;
  clip-path: polygon(0 30%, 100% 0, 97% 100%, 0 70%);
  background: #1a1510;
}
.stroke-bamboo {
  height: 14px; border-radius: 2px;
  background: repeating-linear-gradient(
    90deg, #1a1510 0px, #1a1510 3px, transparent 3px, transparent 5px
  );
}
.stroke-bounce {
  height: 10px; border-radius: 5px;
  background: #2a2520;
  clip-path: polygon(0 40%, 10% 20%, 25% 60%, 40% 25%, 55% 55%, 70% 30%, 85% 50%, 100% 35%, 100% 80%, 85% 70%, 70% 85%, 55% 65%, 40% 80%, 25% 70%, 10% 85%, 0 60%);
}

.brush-name {
  font-size: 0.85rem; font-weight: 700;
  color: #2a2520; letter-spacing: 0.1em;
}

.brush-desc {
  font-size: 0.65rem; font-weight: 400;
  color: #7a7168; letter-spacing: 0.05em;
}
/* CYBER SURVIVOR — Game Mode Styles */

body.game-active #washi-bg { opacity: 0 !important; }
body.game-active #brush-change-btn { opacity: 0 !important; pointer-events: none !important; }
body.game-active #brush-panel { display: none !important; }
body.game-active { background: #0a0a14 !important; }
body.game-active #canvas { background: #0a0a14 !important; }
body.game-active #rakkan {
  filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(0,212,255,0.6));
  opacity: 0.7;
}

#game-result {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: rgba(10, 10, 20, 0.95);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  opacity: 0; pointer-events: none; transition: opacity 0.5s ease;
}
#game-result.visible { opacity: 1; pointer-events: auto; }

.cyber-result { text-align: center; }

.cyber-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 3.5rem; font-weight: 900;
  color: #ff2d95;
  text-shadow: 0 0 20px rgba(255,45,149,0.6), 0 0 60px rgba(255,45,149,0.3);
  letter-spacing: 0.15em; line-height: 1.1; margin-bottom: 2rem;
  animation: cyberPulse 2s ease-in-out infinite, glitchText 4s linear infinite;
  position: relative;
}

@keyframes cyberPulse {
  0%, 100% { text-shadow: 0 0 20px rgba(255,45,149,0.6), 0 0 60px rgba(255,45,149,0.3); }
  50% { text-shadow: 0 0 30px rgba(255,45,149,0.8), 0 0 80px rgba(255,45,149,0.5), 0 0 120px rgba(255,45,149,0.2); }
}

@keyframes glitchText {
  0%, 92%, 100% { transform: translate(0, 0) skewX(0deg); }
  93% { transform: translate(-3px, 1px) skewX(-2deg); text-shadow: 2px 0 #00d4ff, -2px 0 #39ff14; }
  94% { transform: translate(2px, -1px) skewX(1deg); text-shadow: -2px 0 #00d4ff, 2px 0 #39ff14; }
  95% { transform: translate(-1px, 2px) skewX(-1deg); }
  96% { transform: translate(0, 0) skewX(0deg); }
}

.cyber-stats { display: flex; gap: 2rem; justify-content: center; margin-bottom: 1.5rem; }
.cyber-stat { display: flex; flex-direction: column; align-items: center; }
.cyber-stat-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem; font-weight: 400; color: rgba(0, 212, 255, 0.7);
  letter-spacing: 0.2em; margin-bottom: 0.3rem;
}
.cyber-stat-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.2rem; font-weight: 700; color: #00d4ff;
  text-shadow: 0 0 12px rgba(0,212,255,0.5);
}

.cyber-new {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem; font-weight: 700; color: #ffe100;
  text-shadow: 0 0 15px rgba(255,225,0,0.5);
  margin-bottom: 0.5rem; animation: newRec 0.6s ease;
}
@keyframes newRec { 0%{transform:scale(0.3);opacity:0} 60%{transform:scale(1.3)} 100%{transform:scale(1);opacity:1} }

.cyber-high {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem; color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em; margin-bottom: 2rem;
}

.result-buttons { display: flex; gap: 1rem; justify-content: center; }

.cyber-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem; font-weight: 700; letter-spacing: 0.15em;
  padding: 0.8rem 2.2rem; border: 2px solid #00d4ff; border-radius: 2px;
  background: rgba(0, 212, 255, 0.15); color: #00d4ff; cursor: pointer;
  touch-action: manipulation; -webkit-tap-highlight-color: transparent;
  transition: all 0.2s ease;
  text-shadow: 0 0 8px rgba(0,212,255,0.4);
  box-shadow: 0 0 15px rgba(0,212,255,0.15), inset 0 0 15px rgba(0,212,255,0.05);
}
.cyber-btn:active {
  transform: scale(0.95);
  background: rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 25px rgba(0,212,255,0.3), inset 0 0 20px rgba(0,212,255,0.1);
}
.cyber-btn-exit {
  border-color: rgba(255,255,255,0.2); background: transparent;
  color: rgba(255,255,255,0.5); text-shadow: none; box-shadow: none;
}
.cyber-btn-exit:active { background: rgba(255,255,255,0.05); }

/* ═══════════════════════════════════
   Onboarding
   ═══════════════════════════════════ */
#onboarding {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2rem;
  background: rgba(250,248,245,0.85);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; animation: onboardFadeIn 1.2s 0.5s ease forwards;
  font-family: "Shippori Mincho", serif;
  writing-mode: vertical-rl; text-orientation: upright;
}
#onboarding p { font-size: 1.6rem; font-weight: 700; color: #2a2520; letter-spacing: 0.5em; line-height: 2; }
#onboarding .sub { font-size: 0.85rem; font-weight: 400; color: #7a7168; letter-spacing: 0.2em; }
#onboarding.fade-out { animation: onboardFadeOut 1.5s ease forwards; }
#onboarding.hidden { display: none; }

@keyframes onboardFadeIn { from{opacity:0} to{opacity:1} }
@keyframes onboardFadeOut { from{opacity:1} to{opacity:0} }

/* ═══════════════════════════════════
   In-Game Exit Button
   ═══════════════════════════════════ */
.game-exit-btn {
  display: none;
  position: fixed; top: 12px; left: 12px; z-index: 20;
  width: 40px; height: 40px;
  border: 2px solid rgba(255,255,255,0.3); border-radius: 50%;
  background: rgba(10,10,20,0.6);
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem; line-height: 1;
  cursor: pointer; touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: all 0.2s ease;
  padding-top: env(safe-area-inset-top, 0px);
}
body.game-active .game-exit-btn { display: flex; align-items: center; justify-content: center; }
.game-exit-btn:active { background: rgba(255,45,149,0.3); border-color: #ff2d95; color: #ff2d95; }

/* ═══════════════════════════════════
   Idle Hint — 白紙に戻す操作ヒント
   ═══════════════════════════════════ */
#idle-hint {
  position: fixed;
  bottom: 80px; left: 50%; transform: translateX(-50%);
  z-index: 18;
  display: none; align-items: center; gap: 12px;
  padding: 12px 20px;
  background: rgba(42, 37, 32, 0.85);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-radius: 12px;
  font-family: "Shippori Mincho", serif;
  opacity: 0;
  transition: opacity 0.6s ease;
  max-width: 90vw;
}
#idle-hint.visible {
  display: flex;
  opacity: 1;
}
#idle-hint p {
  font-size: 0.85rem; color: #e8e2da;
  line-height: 1.6; letter-spacing: 0.05em;
  margin: 0; white-space: nowrap;
}
#idle-hint-close {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border: 1px solid rgba(255,255,255,0.2); border-radius: 50%;
  background: transparent; color: rgba(255,255,255,0.5);
  font-size: 0.75rem; line-height: 1;
  cursor: pointer; touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s ease;
}
#idle-hint-close:active { background: rgba(255,255,255,0.1); color: #fff; }