:root {
  --gold: #c8a65a;
  --text: #222;
  --muted: #777;
  --border: #e3e3e3;
  --bg-alt: #faf7f1;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #fff;
  color: var(--text);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(8px);
  z-index: 20;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--gold);
}

.logo-text {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.nav {
  display: flex;
  gap: 14px;
  font-size: 0.9rem;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
}

.nav a:hover {
  color: var(--gold);
}

.hero {
  padding: 48px 0 36px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr);
}

.eyebrow {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--gold);
  margin-bottom: 10px;
}

.hero h1 {
  font-size: clamp(2rem, 3vw, 2.4rem);
  margin: 0 0 10px;
}

.hero-subtitle {
  color: var(--muted);
  max-width: 420px;
  line-height: 1.5;
  margin-bottom: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 8px 16px;
  font-size: 0.9rem;
  background: #fff;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
}

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

.btn.primary:hover {
  background: #b59246;
  border-color: #b59246;
}

.btn.ghost:hover {
  border-color: var(--gold);
}

.btn.tiny {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.section {
  padding: 46px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
}

.section-text {
  max-width: 640px;
  color: var(--muted);
  line-height: 1.6;
}

.file-label {
  display: block;
  border-radius: 14px;
  border: 1px dashed var(--border);
  padding: 12px 14px;
  font-size: 0.9rem;
  margin: 16px 0 14px;
}

.file-label span {
  display: block;
  margin-bottom: 6px;
}

.file-label input {
  width: 100%;
  font-size: 0.9rem;
}

.visualizer-section h2 {
  margin-bottom: 8px;
}

.visualizer-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.palette-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 4px;
  display: block;
}

.color-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.color-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

#colorPicker {
  width: 42px;
  height: 28px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
}

.preset-buttons {
  display: flex;
  gap: 8px;
}

.color-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid #c0c0c0;
  cursor: pointer;
  padding: 0;
}

.color-btn[data-color="#ffffff"] { background: #ffffff; }
.color-btn[data-color="#d24a4a"] { background: #d24a4a; }
.color-btn[data-color="#f3c94a"] { background: #f3c94a; }
.color-btn[data-color="#4f7fdc"] { background: #4f7fdc; }
.color-btn[data-color="#90949b"] { background: #90949b; }

.color-btn.active {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200,166,90,0.3);
}

.tools-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tool-buttons {
  display: flex;
  gap: 6px;
}

.tool-btn {
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 0.8rem;
  background: #fff;
  cursor: pointer;
}

.tool-btn.active {
  border-color: var(--gold);
  background: #fff8e6;
}

.tool-sliders {
  display: flex;
  gap: 16px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.8rem;
  color: var(--muted);
}

.slider-group input[type="range"] {
  width: 140px;
}

.actions-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.helper-text {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 10px;
}

.visualizer-canvas-wrapper {
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 16px;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafafa;
  overflow: hidden;
}

#previewCanvas {
  max-width: 100%;
  display: none;
}

.canvas-placeholder {
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}

.saved-gallery {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.gallery-placeholder {
  font-size: 0.8rem;
  color: var(--muted);
}

.saved-thumb {
  width: 140px;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  object-fit: cover;
  display: block;
  cursor: pointer;
}

.snapshot-preview-wrapper {
  margin-top: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 10px;
  background: #fff;
}

.snapshot-preview-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 6px;
}

.snapshot-preview {
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.card {
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 16px 16px 18px;
  background: #fff;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--border);
  padding: 16px 0 22px;
}

.footer-inner {
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  .nav { display: none; }
  .hero { padding-top: 32px; }
}