/**
 * Glyph Craft (字灵拆拆乐) - Aesthetic Stylesheet
 * Song Dynasty Xuan Paper & Cinnabar Seal Aesthetic
 */

:root {
  --bg-dark: #12181b;
  --bg-cabinet: #1e262c;
  --paper-bg: #f4efe6;
  --paper-fiber: #e8dfcf;
  --ink-primary: #2d3436;
  --ink-light: #636e72;
  --pine-green: #10ac84;
  --cinnabar-red: #ee5253;
  --celadon-stone: #576574;
  --gold-accent: #ffa502;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --font-serif: "Songti SC", "SimSun", "STSong", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

body {
  background: var(--bg-dark);
  color: #dfe6e9;
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  touch-action: manipulation;
}

#game-app {
  width: 100%;
  max-width: 640px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 12px 14px 24px;
}

/* Header & Controls */
#top-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-cabinet);
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  margin-bottom: 12px;
  gap: 8px;
}

.nav-left, .nav-right {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-center h1 {
  font-size: 1.05rem;
  font-family: var(--font-serif);
  color: #f5f6fa;
  letter-spacing: 2px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
}

/* Tactile Buttons */
.tactile-btn {
  background: #2f3640;
  color: #f5f6fa;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  font-size: 0.78rem;
  padding: 6px 10px;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: transform 0.1s ease, background 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tactile-btn:hover {
  background: #353b48;
  border-color: rgba(255, 255, 255, 0.25);
}

.tactile-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.action-gold-btn {
  background: #e67e22;
  color: #ffffff;
  font-weight: bold;
  border-color: #f39c12;
}

.action-gold-btn:hover {
  background: #d35400;
}

/* Cabinet & Main Content */
#main-cabinet {
  background: var(--bg-cabinet);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Status Bar */
#hud-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(18, 24, 27, 0.6);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 0.84rem;
  border: 1px solid var(--border-subtle);
}

.hud-pill {
  color: #a4b0be;
}

.hud-pill.highlight {
  color: var(--gold-accent);
  font-weight: bold;
  font-family: var(--font-serif);
}

.hud-label {
  color: #747d8c;
  font-size: 0.76rem;
}

/* Stage Canvas Wrapper */
#stage-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  background: var(--paper-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.2);
  border: 2px solid #576574;
}

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

/* Glyph Altar / Tray (Bottom) */
#glyph-altar {
  background: rgba(18, 24, 27, 0.7);
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.altar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.altar-title {
  font-size: 0.82rem;
  color: var(--gold-accent);
  font-family: var(--font-serif);
}

.altar-tip {
  font-size: 0.7rem;
  color: #747d8c;
}

.tray-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 80px;
  background: #182025;
  border-radius: 10px;
  padding: 10px;
  align-items: center;
  border: 1px dashed rgba(255, 255, 255, 0.1);
}

/* Glyph Seal Cards (Celadon Stone Stamp Style) */
.glyph-seal-card {
  width: 68px;
  height: 68px;
  background: linear-gradient(135deg, #576574, #353b48);
  border: 2px solid #718093;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), inset 0 1px 2px rgba(255, 255, 255, 0.2);
  cursor: grab;
  position: relative;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.glyph-seal-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold-accent);
  box-shadow: 0 6px 12px rgba(255, 165, 2, 0.25);
}

.glyph-seal-card.dragging {
  opacity: 0.4;
  cursor: grabbing;
}

.glyph-seal-card.drag-over {
  border-color: #2ed573;
  box-shadow: 0 0 12px rgba(46, 213, 115, 0.6);
  transform: scale(1.06);
}

.seal-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.seal-char {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  color: #f5f6fa;
  line-height: 1.1;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

.seal-meta {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.62rem;
  color: #ced6e0;
  margin-top: 2px;
}

.seal-icon {
  font-size: 0.72rem;
}

.seal-en {
  font-size: 0.62rem;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

/* Modals / Dialogs */
.oriental-modal {
  margin: auto;
  border: none;
  background: transparent;
  padding: 0;
  max-width: 90vw;
  width: 480px;
}

.oriental-modal::backdrop {
  background: rgba(10, 15, 18, 0.85);
  backdrop-filter: blur(4px);
}

.modal-box {
  background: #1e262c;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  color: #dfe6e9;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 8px;
}

.modal-header h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--gold-accent);
}

.modal-close-x {
  background: transparent;
  border: none;
  color: #a4b0be;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
}

.modal-close-x:hover {
  color: #ff4757;
}

/* Rules Scroll */
.rules-scroll {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 60vh;
  overflow-y: auto;
}

.rule-item {
  display: flex;
  gap: 12px;
  background: #182025;
  border-radius: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.rule-icon {
  font-size: 1.5rem;
}

.rule-text h3 {
  font-size: 0.9rem;
  color: var(--gold-accent);
  margin-bottom: 4px;
}

.rule-text p {
  font-size: 0.8rem;
  color: #a4b0be;
  line-height: 1.4;
}

/* Levels Grid */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 10px;
  max-height: 55vh;
  overflow-y: auto;
  padding: 4px;
}

.level-pill {
  aspect-ratio: 1;
  background: #2f3640;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: #f5f6fa;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: transform 0.1s ease, background 0.15s ease;
}

.level-pill.unlocked:hover {
  background: #353b48;
  transform: translateY(-2px);
  border-color: var(--gold-accent);
}

.level-pill.current {
  border-color: var(--gold-accent);
  box-shadow: 0 0 8px rgba(255, 165, 2, 0.4);
}

.level-pill.locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.pill-num {
  font-size: 1.05rem;
  font-weight: bold;
}

.pill-stars {
  font-size: 0.65rem;
  color: var(--gold-accent);
}

/* Codex Grid */
.codex-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 60vh;
  overflow-y: auto;
}

.codex-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #182025;
  border-radius: 10px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.codex-card.locked {
  opacity: 0.4;
}

.codex-seal-icon {
  width: 40px;
  height: 40px;
  background: #576574;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: #fff;
  flex-shrink: 0;
}

.codex-name {
  font-size: 0.88rem;
  font-weight: bold;
  color: var(--gold-accent);
}

.codex-desc {
  font-size: 0.78rem;
  color: #a4b0be;
  margin-top: 2px;
  line-height: 1.35;
}

/* Won Modal */
.won-box {
  text-align: center;
}

.won-seal {
  width: 60px;
  height: 60px;
  margin: 0 auto 10px;
  background: var(--cinnabar-red);
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(238, 82, 83, 0.4);
}

.won-poem {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--gold-accent);
  margin: 8px 0 14px;
  letter-spacing: 2px;
}

.won-stars {
  font-size: 1.8rem;
  color: var(--gold-accent);
  margin-bottom: 14px;
}

.won-eval-list {
  background: #182025;
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 16px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eval-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: #747d8c;
}

.eval-row.active {
  color: #2ed573;
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

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

/* Scrollbar Customization */
.rules-scroll::-webkit-scrollbar,
.levels-grid::-webkit-scrollbar,
.codex-grid::-webkit-scrollbar {
  width: 6px;
}

.rules-scroll::-webkit-scrollbar-track,
.levels-grid::-webkit-scrollbar-track,
.codex-grid::-webkit-scrollbar-track {
  background: #12181b;
  border-radius: 3px;
}

.rules-scroll::-webkit-scrollbar-thumb,
.levels-grid::-webkit-scrollbar-thumb,
.codex-grid::-webkit-scrollbar-thumb {
  background: #2f3640;
  border-radius: 3px;
}

.rules-scroll::-webkit-scrollbar-thumb:hover,
.levels-grid::-webkit-scrollbar-thumb:hover,
.codex-grid::-webkit-scrollbar-thumb:hover {
  background: var(--gold-accent);
}

/* Responsive & Mobile Safe Area Inset */
@media (max-width: 768px) {
  #game-app {
    padding-bottom: max(68px, calc(16px + env(safe-area-inset-bottom)));
  }

  .nav-left, .nav-right {
    gap: 4px;
  }

  .tactile-btn {
    padding: 5px 8px;
    font-size: 0.72rem;
  }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}