/* ===== FROGGY CANVAS - STYLES ===== */

:root {
  --green-dark:    #1b4d2e;
  --green-mid:     #2d6a2d;
  --green-light:   #5cb85c;
  --green-pale:    #d4edda;
  --green-accent:  #a8e063;
  --pond:          #c8ebd4;
  --water-blue:    #e0f7fa;
  --yellow:        #f9ca24;
  --shadow:        rgba(30, 80, 40, 0.18);
  --shadow-strong: rgba(30, 80, 40, 0.32);
  --white:         #fff;
  --border-r:      16px;
  --toolbar-w:     200px;
}

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

/* ── Prevent text/image selection, drag, tap highlight, and zoom ── */
* {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}
img {
  pointer-events: none;
  draggable: false;
}

html {
  touch-action: pan-x pan-y;
}


body {
  font-family: 'Nunito', sans-serif;
  background: linear-gradient(160deg, #b8dfc8 0%, #e0f7fa 50%, #c8ebd4 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background Decorations ── */
.bg-deco { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.lily {
  position: absolute;
  font-size: 3rem;
  opacity: 0.12;
  animation: floatLily 8s ease-in-out infinite;
}
.lily-1 { top: 8%; left: 4%;  animation-delay: 0s;   font-size: 4rem; }
.lily-2 { top: 60%; left: 1%; animation-delay: 2s;   font-size: 2.5rem; }
.lily-3 { top: 15%; right: 3%;animation-delay: 1.5s; font-size: 3.5rem; }
.lily-4 { top: 75%; right: 2%;animation-delay: 3s;   font-size: 2rem; }
@keyframes floatLily {
  0%,100% { transform: translateY(0) rotate(-5deg); }
  50%      { transform: translateY(-18px) rotate(5deg); }
}

/* ── App Wrapper ── */
.app-wrapper {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 16px 32px;
}

/* ── Header ── */
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 22px;
  position: relative;
}
.header-text { text-align: center; }
.header h1 {
  font-family: 'Fredoka One', cursive;
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--green-dark);
  text-shadow: 3px 3px 0 var(--green-accent), 6px 6px 0 rgba(45,106,45,0.15);
  letter-spacing: 1px;
  line-height: 1;
}
.tagline {
  font-size: 1rem;
  color: var(--green-mid);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-top: 4px;
}
.frog-mascot {
  font-size: 2.8rem;
  animation: bobFrog 2.4s ease-in-out infinite;
  display: inline-block;
  filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.15));
}
.frog-mascot.mirrored { transform: scaleX(-1); animation-delay: 0.4s; }
@keyframes bobFrog {
  0%,100% { transform: translateY(0) rotate(-4deg); }
  50%      { transform: translateY(-8px) rotate(4deg); }
}
.frog-mascot.mirrored {
  animation-name: bobFrogMirror;
}
@keyframes bobFrogMirror {
  0%,100% { transform: scaleX(-1) translateY(0) rotate(-4deg); }
  50%      { transform: scaleX(-1) translateY(-8px) rotate(4deg); }
}

/* ── Main Layout ── */
.main-layout {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

/* ── Toolbar ── */
.toolbar {
  width: var(--toolbar-w);
  flex-shrink: 0;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(8px);
  border-radius: var(--border-r);
  border: 2.5px solid var(--green-light);
  box-shadow: 0 6px 28px var(--shadow);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--green-light) transparent;
}
.toolbar::-webkit-scrollbar { width: 5px; }
.toolbar::-webkit-scrollbar-track { background: transparent; }
.toolbar::-webkit-scrollbar-thumb { background: var(--green-light); border-radius: 10px; }

.tool-section { display: flex; flex-direction: column; gap: 8px; }

.section-label {
  font-family: 'Fredoka One', cursive;
  font-size: 0.85rem;
  color: var(--green-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px dashed var(--green-pale);
  padding-bottom: 4px;
}

/* Color Grid */
.color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
}
.color-btn {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  border: 2.5px solid transparent;
  background-color: var(--c);
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.color-btn.active { border-color: var(--green-dark); box-shadow: 0 0 0 3px var(--green-accent); transform: scale(1.12); }

.custom-color-row {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 2px;
}
.custom-label { font-size: 0.78rem; font-weight: 700; color: var(--green-mid); }
#customColor {
  width: 38px; height: 28px;
  border: 2px solid var(--green-light);
  border-radius: 7px;
  cursor: pointer;
  padding: 1px;
  background: none;
}
input[type="color"], input[type="range"] {
  -webkit-user-select: auto;
  user-select: auto;
}

/* Tool Buttons */
.tool-btn-group { display: flex; flex-direction: column; gap: 5px; }
.tool-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 10px;
  border: 2px solid transparent;
  background: var(--green-pale);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--green-dark);
  transition: all 0.15s;
}
.tool-btn.active { background: var(--green-light); border-color: var(--green-dark); color: #fff; box-shadow: 0 3px 10px var(--shadow); }
.tool-icon { font-size: 1.1rem; }
.tool-name { font-size: 0.8rem; }

/* Brush Size Buttons */
.brush-sizes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3px;
}
.size-btn {
  background: none;
  border: 2px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  color: var(--green-mid);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.15s, color 0.15s;
  padding: 2px;
  line-height: 1;
}
.size-btn:nth-child(1) { font-size: 6px; }
.size-btn:nth-child(2) { font-size: 11px; }
.size-btn:nth-child(3) { font-size: 16px; }
.size-btn:nth-child(4) { font-size: 22px; }
.size-btn:nth-child(5) { font-size: 30px; }
.size-btn.active { color: var(--green-dark); border-color: var(--green-mid); background: var(--green-pale); }

.slider-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 10px;
  background: linear-gradient(to right, var(--green-light), var(--green-accent));
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 17px; height: 17px;
  background: var(--green-dark);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 2px 6px var(--shadow);
  cursor: pointer;
}
.brush-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--green-mid);
  min-width: 30px;
  text-align: right;
}

/* Stamps */
.stamp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
}
.stamp-btn {
  font-size: 1.3rem;
  background: var(--green-pale);
  border: 2px solid transparent;
  border-radius: 9px;
  cursor: pointer;
  padding: 5px 3px;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  text-align: center;
  line-height: 1;
}
.stamp-btn.active { border-color: var(--green-dark); background: var(--green-accent); transform: scale(1.15); }

/* ── Canvas Area ── */
.canvas-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.canvas-frame {
  position: relative;
  border-radius: var(--border-r);
  border: 3px solid var(--green-mid);
  box-shadow: 0 8px 36px var(--shadow-strong), inset 0 0 0 4px rgba(168,224,99,0.2);
  overflow: hidden;
  background: #fff;
  cursor: crosshair;
}
#drawCanvas {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
}
.canvas-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fredoka One', cursive;
  font-size: 1.4rem;
  color: rgba(45,106,45,0.3);
  pointer-events: none;
  transition: opacity 0.5s;
  user-select: none;
}
.canvas-hint.hidden { opacity: 0; }

/* ── Action Bar ── */
.action-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.action-btn {
  flex: 1;
  min-width: 80px;
  padding: 10px 6px;
  border-radius: 12px;
  border: 2.5px solid transparent;
  font-family: 'Fredoka One', cursive;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: 0.3px;
}
.undo-btn  { background: #e8f5e9; border-color: #81c784; color: #2e7d32; }
.redo-btn  { background: #e3f2fd; border-color: #64b5f6; color: #1565c0; }
.clear-btn { background: #fce4ec; border-color: #e57373; color: #c62828; }
.action-btn:active { transform: translateY(0) scale(0.97); }
.action-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

/* ── Home Button ── */
.btn-home {
  position: absolute;
  top: 20px;
  right: 16px;
  padding: 8px 18px;
  border-radius: 50px;
  border: 2.5px solid var(--green-light);
  background: rgba(255,255,255,0.82);
  color: var(--green-dark);
  font-family: 'Fredoka One', cursive;
  font-size: 0.95rem;
  cursor: pointer;
  backdrop-filter: blur(6px);
  box-shadow: 0 3px 12px var(--shadow);
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  z-index: 10;
}

.btn-home:active { transform: scale(0.95); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(60px);
  background: var(--green-dark);
  color: #fff;
  padding: 10px 22px;
  border-radius: 20px;
  font-family: 'Fredoka One', cursive;
  font-size: 1rem;
  letter-spacing: 0.4px;
  box-shadow: 0 6px 24px var(--shadow-strong);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .main-layout { flex-direction: column; }
  .toolbar { width: 100%; flex-direction: row; flex-wrap: wrap; max-height: none; overflow: visible; }
  .tool-section { flex: 1; min-width: 120px; }
  .stamps-section { display: none; }
  .canvas-frame { max-height: 60vw; }
}