/* =============================================
   PUZZLY – Cozy Puzzle App
   Design: Warm, soft, editorial. Like a beautiful
   coffee-table book came to life.
   ============================================= */

:root {
  --cream:       #f5ede0;
  --cream-dark:  #ede0cc;
  --warm-brown:  #8b6347;
  --deep-brown:  #4a2f1a;
  --terracotta:  #c17a5a;
  --sage:        #7a9e7e;
  --sage-light:  #a8c5a0;
  --gold:        #c9a84c;
  --gold-light:  #f0d080;
  --text-main:   #3d2b1a;
  --text-soft:   #8b7355;
  --text-light:  #b8a090;
  --white:       #fffdf8;
  --shadow:      rgba(74, 47, 26, 0.15);
  --shadow-deep: rgba(74, 47, 26, 0.3);

  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Lato', system-ui, sans-serif;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--cream);
  font-family: var(--font-body);
  color: var(--text-main);
}

/* =============================================
   SCREENS
   ============================================= */

.screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--cream);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  overflow-y: auto;
  overflow-x: hidden;
}

.screen.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* =============================================
   HOME SCREEN
   ============================================= */

.home-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(193, 122, 90, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 90%, rgba(122, 158, 126, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 60% 30%, rgba(201, 168, 76, 0.10) 0%, transparent 45%),
    var(--cream);
  pointer-events: none;
  z-index: 0;
}

.home-content {
  position: relative;
  z-index: 1;
  padding: 0 20px env(safe-area-inset-bottom, 16px);
  max-width: 520px;
  margin: 0 auto;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Logo */
.logo-area {
  text-align: center;
  padding: 48px 0 8px;
}

.logo-icon {
  font-size: 56px;
  line-height: 1;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 12px rgba(193,122,90,0.3));
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.logo-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 600;
  color: var(--deep-brown);
  letter-spacing: -1px;
  line-height: 1;
}

.logo-subtitle {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-soft);
  font-style: italic;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
}

/* Menu sections */
.menu-section h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  color: var(--warm-brown);
  margin-bottom: 14px;
  padding-left: 2px;
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.category-card {
  background: var(--white);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 16px 8px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 12px var(--shadow);
}

.category-card:hover,
.category-card:active {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--shadow-deep);
  border-color: var(--terracotta);
}

.category-card.selected {
  border-color: var(--terracotta);
  background: rgba(193, 122, 90, 0.06);
}

.category-emoji {
  font-size: 32px;
  display: block;
  margin-bottom: 8px;
}

.category-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.category-count {
  font-size: 11px;
  color: var(--text-light);
  margin-top: 2px;
}

/* Grid selector */
.grid-selector {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.grid-btn {
  flex: 1;
  min-width: 52px;
  padding: 10px 8px;
  border: 2px solid var(--cream-dark);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text-soft);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.grid-btn:hover { border-color: var(--terracotta); color: var(--terracotta); }

.grid-btn.active {
  border-color: var(--terracotta);
  background: var(--terracotta);
  color: var(--white);
}

/* Primary Button */
.btn-primary {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--terracotta), var(--warm-brown));
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(193, 122, 90, 0.4);
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(193, 122, 90, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  width: 100%;
  padding: 14px;
  background: transparent;
  color: var(--warm-brown);
  border: 2px solid var(--cream-dark);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 17px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--warm-brown);
}

/* Bottom bar */
.bottom-bar {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 12px 0 24px;
  margin-top: auto;
}

.icon-btn {
  background: var(--white);
  border: 2px solid var(--cream-dark);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 22px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px var(--shadow);
}

.icon-btn:hover {
  transform: scale(1.1);
  border-color: var(--terracotta);
}

/* =============================================
   SCREEN HEADERS (Browse / Records)
   ============================================= */

.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--cream);
  border-bottom: 1px solid var(--cream-dark);
  flex-shrink: 0;
  padding-top: max(16px, env(safe-area-inset-top));
}

.screen-header h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  color: var(--deep-brown);
}

.back-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--warm-brown);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  line-height: 1;
}

.back-btn:hover { background: var(--cream-dark); }

/* =============================================
   BROWSE SCREEN
   ============================================= */

.puzzle-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 20px;
  overflow-y: auto;
}

.puzzle-thumb {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 2px 12px var(--shadow);
  position: relative;
}

.puzzle-thumb:hover, .puzzle-thumb:active {
  transform: scale(1.03);
  box-shadow: 0 8px 24px var(--shadow-deep);
}

.puzzle-thumb img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.puzzle-thumb-info {
  padding: 10px 12px;
}

.puzzle-thumb-name {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--deep-brown);
  font-weight: 600;
}

.puzzle-thumb-artist {
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 2px;
}

.puzzle-thumb-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--gold);
  color: var(--deep-brown);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 20px;
}

/* =============================================
   GAME SCREEN
   ============================================= */

#screen-game {
  background: var(--cream);
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--cream-dark);
  flex-shrink: 0;
  background: var(--cream);
  z-index: 10;
}

.game-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.timer {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--deep-brown);
  letter-spacing: 1px;
  font-weight: 600;
}

.game-grid-label {
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.puzzle-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  overflow: hidden;
  touch-action: none;
  user-select: none;
}

#puzzle-canvas {
  display: block;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px var(--shadow-deep);
  cursor: pointer;
  touch-action: none;
}

.game-footer {
  padding: 12px 20px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--cream-dark);
  flex-shrink: 0;
}

.image-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.image-name {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--deep-brown);
  font-style: italic;
}

.image-artist {
  font-size: 12px;
  color: var(--warm-brown);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.image-desc {
  font-size: 11px;
  color: var(--text-light);
  max-width: 320px;
}

/* =============================================
   RECORDS SCREEN
   ============================================= */

.records-list {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.record-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 2px 8px var(--shadow);
}

.record-img {
  width: 56px;
  height: 42px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.record-info {
  flex: 1;
  min-width: 0;
}

.record-name {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--deep-brown);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.record-detail {
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 2px;
}

.record-time {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--terracotta);
  font-weight: 600;
  flex-shrink: 0;
}

.records-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
}

/* =============================================
   WIN OVERLAY
   ============================================= */

.win-overlay {
  position: fixed;
  inset: 0;
  background: rgba(74, 47, 26, 0.55);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  transition: opacity 0.4s ease;
}

.win-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.win-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px 28px;
  text-align: center;
  max-width: 340px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(74, 47, 26, 0.4);
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.win-overlay:not(.hidden) .win-card {
  transform: scale(1);
}

.win-emoji {
  font-size: 56px;
  margin-bottom: 12px;
  animation: bounce-win 0.6s ease;
}

@keyframes bounce-win {
  0%   { transform: scale(0); }
  60%  { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.win-card h2 {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--deep-brown);
  margin-bottom: 12px;
}

.win-time {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--terracotta);
  font-weight: 600;
  margin-bottom: 4px;
}

.win-image-name {
  font-size: 13px;
  color: var(--text-soft);
  font-style: italic;
  margin-bottom: 24px;
  font-family: var(--font-display);
}

.win-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* =============================================
   GLOW ANIMATION on CANVAS
   ============================================= */

@keyframes canvas-glow {
  0%   { box-shadow: 0 8px 32px var(--shadow-deep); }
  30%  { box-shadow: 0 0 60px 20px rgba(201, 168, 76, 0.7), 0 0 120px 40px rgba(193, 122, 90, 0.4); }
  70%  { box-shadow: 0 0 40px 10px rgba(201, 168, 76, 0.5); }
  100% { box-shadow: 0 8px 32px var(--shadow-deep); }
}

#puzzle-canvas.glow {
  animation: canvas-glow 1.8s ease forwards;
}

/* =============================================
   DRAGGING TILE OVERLAY
   ============================================= */

#drag-tile {
  position: fixed;
  pointer-events: none;
  z-index: 500;
  border-radius: 6px;
  box-shadow: 0 12px 40px rgba(74,47,26,0.45);
  transform: translate(-50%, -50%) rotate(2deg) scale(1.07);
  transition: box-shadow 0.1s;
  image-rendering: crisp-edges;
}

/* =============================================
   SCROLLBAR STYLING
   ============================================= */

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--cream-dark); border-radius: 2px; }

/* =============================================
   UTILS
   ============================================= */

.hidden { display: none !important; }

/* =============================================
   TOAST
   ============================================= */

.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--deep-brown);
  color: var(--cream);
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 14px;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 900;
  white-space: nowrap;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (min-width: 420px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-height: 600px) {
  .logo-area { padding: 24px 0 4px; }
  .logo-icon { font-size: 40px; }
  .logo-title { font-size: 36px; }
  .home-content { gap: 18px; }
}