:root {
  --bg-navy: #0d1b2a;
  --bg-green: #1a7f37;
  --bg-teal: #2dd4bf;
  --panel: rgba(255, 255, 255, 0.1);
  --panel-border: rgba(255, 255, 255, 0.2);
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.7);
  --border: rgba(255, 255, 255, 0.25);
  --accent: #198754;
  --accent-hover: #157347;
  --radius: 15px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, var(--bg-navy) 0%, var(--bg-green) 55%, var(--bg-teal) 100%);
  background-attachment: fixed;
  color: var(--text);
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.app-header .back-link {
  display: inline-block;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.app-header .back-link:hover {
  color: #ffffff;
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 2rem;
  font-weight: 700;
}

.app-header p {
  margin: 0 0 20px;
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 800px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--text);
}

.field input[type="text"],
.field select,
.field input[type="file"] {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.field input[type="text"]::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.field select option {
  background: #0d1b2a;
  color: #ffffff;
}

.field input[type="range"] {
  width: 100%;
}

.hint {
  margin: 6px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.photo-controls {
  padding: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.share-callout {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.4);
  border-radius: 8px;
  text-align: center;
}

.share-callout p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text);
}

.share-callout strong {
  color: var(--bg-teal);
}

.btn-primary,
.btn-secondary {
  border: none;
  border-radius: 8px;
  padding: 11px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

.preview {
  display: flex;
  justify-content: center;
}

.canvas-wrap {
  width: 100%;
  max-width: 420px;
  display: flex;
  justify-content: center;
}

#badgeCanvas {
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  touch-action: none;
  cursor: grab;
}

#badgeCanvas.dragging {
  cursor: grabbing;
}

.app-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 32px;
}

@media print {
  body {
    background: #fff;
  }
  body * {
    visibility: hidden;
  }
  #canvasWrap, #canvasWrap * {
    visibility: visible;
  }
  #canvasWrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 4in;
    max-width: none;
  }
  #badgeCanvas {
    box-shadow: none;
    border-radius: 0;
  }
}