:root {
  --color-navy: #1D1C4C;
  --color-magenta: #FF3B70;
  --color-orange: #FF6B4A;
  --color-gold: #FFAA3B;
  --color-bg: #F4F5F9;
  --glow-gradient: linear-gradient(135deg, #FF3B70 0%, #FF6B4A 50%, #FFAA3B 100%);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--color-bg);
  color: var(--color-navy);
  padding-bottom: 50px;
}

.header-glow {
  background: var(--color-navy);
  padding: 30px 20px;
  text-align: center;
  border-bottom: 4px solid var(--color-magenta);
  box-shadow: 0 4px 15px rgba(29, 28, 76, 0.2);
}

.header-glow h1 {
  color: #FFFFFF;
  font-size: 28px;
  letter-spacing: 2px;
  font-weight: 800;
}

.header-glow p {
  color: var(--color-gold);
  font-size: 13px;
  font-weight: 600;
  margin-top: 6px;
  letter-spacing: 1px;
}

.main-container {
  max-width: 1150px;
  margin: 40px auto;
  display: flex;
  gap: 30px;
  padding: 0 20px;
  flex-wrap: wrap;
}

.preview-section {
  flex: 1.2;
  min-width: 340px;
}

.control-panel {
  flex: 1;
  min-width: 320px;
  background: #FFFFFF;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(29, 28, 76, 0.08);
}

.control-panel h2 {
  font-size: 22px;
  margin-bottom: 4px;
  color: var(--color-navy);
}

.subtitle {
  font-size: 14px;
  color: #666;
  margin-bottom: 24px;
}

.product-selector {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.btn-product {
  flex: 1;
  padding: 12px 8px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-navy);
  transition: all 0.2s ease;
}

.btn-product.active, .btn-product:hover {
  border-color: var(--color-magenta);
  background: rgba(255, 59, 112, 0.05);
  color: var(--color-magenta);
}

.product-card {
  position: relative;
  height: 480px;
  background: #FFFFFF;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(29, 28, 76, 0.06);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  border: 1px solid #E2E8F0;
}

.mockup-bg {
  width: 280px;
  height: 360px;
  background-color: #FFFFFF;
  border: 2px dashed #CBD5E1;
  border-radius: 20px;
  transition: background-color 0.3s ease;
}

.canvas-wrapper {
  position: absolute;
  top: 140px;
  border: 1.5px dashed var(--color-magenta);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.3);
}

.control-group {
  margin-bottom: 20px;
}

.control-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 14px;
}

.input-file, .input-text {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid #E2E8F0;
  border-radius: 8px;
  outline: none;
  font-size: 14px;
}

.input-text:focus {
  border-color: var(--color-magenta);
}

.text-inline {
  display: flex;
  gap: 10px;
}

.btn-secondary {
  background: var(--color-navy);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

.color-picker {
  display: flex;
  gap: 12px;
}

.color-dot {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #CBD5E1;
  transition: transform 0.2s ease;
}

.color-dot:hover { transform: scale(1.15); }
.color-dot.white { background: #FFFFFF; }
.color-dot.black { background: #1D1C4C; }
.color-dot.gray { background: #94A3B8; }

.divider {
  border: 0;
  border-top: 1px solid #E2E8F0;
  margin: 25px 0;
}

.btn-glow {
  width: 100%;
  background: var(--glow-gradient);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 16px;
  border: none;
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 59, 112, 0.4);
  transition: all 0.3s ease;
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(255, 59, 112, 0.6);
}