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

:root {
  --pink: #e8638a;
  --pink-light: #f9c6d8;
  --pink-pale: #fff0f5;
  --pink-border: #f5dce7;
  --text: #3a2030;
  --text-muted: #b07090;
  --white: #ffffff;
  --radius: 14px;
  --shadow: 0 2px 16px rgba(220, 80, 120, 0.07);
}

body {
  font-family: 'Poppins', sans-serif;
  background: var(--pink-pale);
  min-height: 100vh;
  padding: 32px 24px;
  color: var(--text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  text-align: left;
  margin-bottom: 28px;
}

.title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--pink);
  letter-spacing: -0.3px;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 400;
}

.main-content {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 20px;
  align-items: start;
}

/* Sidebar */
.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-group {
  background: var(--white);
  border: 1px solid var(--pink-border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.control-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.emoji {
  display: none;
}

.slider {
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: var(--pink-border);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  margin: 6px 0 8px;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--pink);
  cursor: pointer;
  box-shadow: 0 1px 6px rgba(220, 80, 120, 0.3);
  transition: transform 0.15s;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--pink);
  cursor: pointer;
  border: none;
  box-shadow: 0 1px 6px rgba(220, 80, 120, 0.3);
}

.value-display {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pink);
  background: var(--pink-pale);
  border: 1px solid var(--pink-border);
  padding: 2px 10px;
  border-radius: 20px;
}

.color-input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--pink-border);
  border-radius: 8px;
  cursor: pointer;
  background: none;
  padding: 2px;
}

.color-input:hover {
  border-color: var(--pink-light);
}

.color-palette {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 4px;
}

.color-btn {
  width: 100%;
  height: 36px;
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.color-btn:hover {
  transform: scale(1.06);
}

.color-btn.active {
  border-color: var(--text);
}

.button-group {
  flex-direction: column;
}

.btn {
  flex: 1;
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--pink);
  color: white;
}

.btn-primary:hover {
  background: #d44d78;
}

.btn-secondary {
  background: var(--pink-pale);
  color: var(--pink);
  border: 1px solid var(--pink-border);
}

.btn-secondary:hover {
  background: #fce0ec;
}

.tips {
  margin-top: 0;
}

.tips p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 4px;
}

.tips p:last-child {
  margin-bottom: 0;
}

/* Canvas */
.canvas-container {
  background: var(--white);
  border: 1px solid var(--pink-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

#mandalaCanvas {
  display: block;
  border-radius: 10px;
  cursor: crosshair;
  background: white;
  max-width: 100%;
}

.canvas-overlay {
  position: absolute;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.center-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--pink-border);
}

@media (max-width: 900px) {
  .main-content {
    grid-template-columns: 1fr;
  }

  .controls-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  body { padding: 16px; }
  .controls-panel { grid-template-columns: 1fr; }
  .title { font-size: 1.4rem; }
}