:root {
  --bg: #f4f1ea;
  --bg-2: #fafaf4;
  --bg-3: #ece8dd;
  --ink: #0a0a0a;
  --ink-soft: #2a2a2a;
  --ink-muted: #666460;
  --ink-dim: #a8a59e;
  --accent: #d4ff3d;
  --on-accent: #0a0a0a;
  --font-display: 'Fraunces', serif;
  --font-display-weight: 600;
  --font-display-spacing: -0.03em;
  --font-ui: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 400;
  min-height: 100vh;
  padding: 24px 18px 80px;
  transition: background 0.25s, color 0.25s;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
  padding-bottom: 18px;
  border-bottom: 1.5px solid var(--ink);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 22px;
  height: 22px;
  background: var(--accent);
  border: 1.5px solid var(--ink);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 4px;
  background: var(--ink);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand-name em {
  font-style: italic;
  font-weight: 400;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.tip-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: var(--accent);
  color: var(--on-accent);
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink);
  transition: all 0.15s;
}
.tip-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}
.tip-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--ink);
}
.tip-btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.stat-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.stat-chip .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border: 1px solid var(--ink);
}

/* Hero */
.hero {
  margin-bottom: 48px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 760px) {
  .hero {
    grid-template-columns: 1.4fr 1fr;
    align-items: end;
  }
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
  color: var(--ink);
  letter-spacing: var(--font-display-spacing);
}

.hero h1 em {
  font-style: italic;
  font-weight: 500;
  background: var(--accent);
  color: var(--on-accent);
  padding: 0 0.12em;
  display: inline-block;
  transform: rotate(-1.5deg);
  margin: 0 0.04em;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 12px;
}

.hero-sub {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.5;
  max-width: 380px;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--ink);
  border-radius: 4px;
  padding: 80px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg-2);
}

.drop-zone:hover, .drop-zone.dragover {
  background: var(--accent);
  color: var(--on-accent);
  border-style: solid;
}
.drop-zone:hover *, .drop-zone.dragover * { color: var(--on-accent); }

.drop-zone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  border: 1.5px solid var(--ink);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
}

.drop-zone-text {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.drop-zone-text strong {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: var(--font-display-weight);
  font-size: 1.25rem;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1.5px;
}

.drop-zone-hint {
  font-family: var(--font-mono);
  color: var(--ink-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

input[type="file"] { display: none; }

/* Intro extras: steps + feature pills (hidden after first upload) */
.intro-extras {
  margin: 28px 0 8px;
}

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.step {
  flex: 1 1 220px;
  max-width: 280px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-2);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  box-shadow: 4px 4px 0 var(--ink);
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid var(--ink);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.step-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-name {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}

.step-meta {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

.step-arrow {
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (max-width: 959px) {
  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step {
    flex: 0 0 auto;
    width: 100%;
    max-width: 320px;
  }

  .step-arrow {
    transform: rotate(90deg);
  }
}

/* Example gallery */
.gallery {
  margin-top: 64px;
}

.gallery-heading {
  text-align: center;
  margin-bottom: 16px;
}

.gallery-heading .section-label {
  justify-content: center;
  margin-bottom: 6px;
}

.gallery-sub {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 720px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-tile {
  background: var(--bg-2);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  padding: 8px 8px 10px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-ui);
  text-align: center;
  box-shadow: 3px 3px 0 var(--ink);
}

.gallery-tile:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}

.gallery-tile:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--ink);
}

.gallery-tile canvas {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  border-radius: 4px;
}

.gallery-tile-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

/* Editor */
.editor { display: none; }
.editor.active { display: block; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::before {
  content: '//';
  color: var(--ink);
  font-weight: 700;
}

/* Frame chips */
.frame-selector {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.frame-btn {
  background: var(--bg-2);
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: 10px 22px;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.frame-btn:hover { background: var(--bg-3); }
.frame-btn.active {
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
}

/* Workspace: preview + sidebar */
.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 32px;
}

@media (min-width: 960px) {
  .workspace {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }
}

/* Preview area */
.preview-wrap {
  background: var(--bg-3);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  overflow: hidden;
  position: relative;
  box-shadow: 6px 6px 0 var(--ink);
}

.preview-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ink) 1px, transparent 1px),
    linear-gradient(90deg, var(--ink) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -1px -1px;
  opacity: 0.04;
  pointer-events: none;
}

#preview {
  max-width: 100%;
  max-height: 70vh;
  height: auto;
  display: block;
  position: relative;
  z-index: 1;
}

/* Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 960px) {
  .sidebar {
    position: sticky;
    top: 18px;
  }
}

.control-group {
  background: var(--bg-2);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  padding: 18px;
}

/* Backgrounds */
.bg-swatches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.swatch {
  aspect-ratio: 1;
  border-radius: 4px;
  cursor: pointer;
  border: 1.5px solid var(--ink);
  transition: transform 0.15s;
  position: relative;
}

.swatch:hover { transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--ink); }
.swatch.active::after {
  content: '';
  position: absolute;
  inset: -5px;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  pointer-events: none;
}

.swatch.transparent {
  background:
    linear-gradient(45deg, #888 25%, transparent 25%),
    linear-gradient(-45deg, #888 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #888 75%),
    linear-gradient(-45deg, transparent 75%, #888 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0;
  background-color: #f0eee5;
}

/* Upload swatch */
.upload-swatch {
  background: var(--bg);
  border: 1.5px dashed var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.upload-swatch.has-image {
  border-style: solid;
  font-size: 0;
}

.upload-swatch .remove-btn {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--bg);
  font-size: 11px;
  font-family: var(--font-ui);
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  z-index: 2;
}

.upload-swatch.has-image .remove-btn { display: flex; }
.upload-swatch .remove-btn:hover { background: var(--accent); color: var(--ink); }

/* Slider */
.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-row input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
  height: 22px;
}

.slider-row input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--ink);
  border-radius: 0;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  margin-top: -9px;
  border: 1.5px solid var(--ink);
}

.slider-row input[type="range"]::-moz-range-track {
  height: 4px;
  background: var(--ink);
  border-radius: 0;
}

.slider-row input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 1.5px solid var(--ink);
}

.slider-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
  text-align: right;
  font-weight: 500;
}

/* Text input */
.text-input {
  width: 100%;
  background: var(--bg);
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  padding: 9px 12px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  outline: none;
  transition: background 0.15s;
}

.text-input:focus { background: var(--accent); color: var(--on-accent); }
.text-input::placeholder { color: var(--ink-dim); }

/* Fit toggle */
.fit-toggle {
  display: flex;
  gap: 0;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  overflow: hidden;
}

.fit-toggle button {
  flex: 1;
  background: var(--bg);
  border: none;
  border-radius: 0;
  padding: 8px;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.fit-toggle button + button { border-left: 1.5px solid var(--ink); }
.fit-toggle button.active { background: var(--ink); color: var(--bg); }

/* Action buttons */
.actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.btn {
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: 13px 22px;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
}

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 4px 4px 0 var(--ink);
}
.btn-primary:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.btn-primary:active { transform: translate(2px, 2px); box-shadow: 0 0 0 var(--ink); }

.btn-primary .arrow {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 4px;
}

.btn-secondary {
  background: var(--bg-2);
  color: var(--ink);
}
.btn-secondary:hover { background: var(--ink); color: var(--bg); }

.subgroup { margin-top: 14px; }

.effect-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-top: 2px;
}

.hidden { display: none !important; }

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: var(--bg);
  padding: 12px 18px 12px 14px;
  border-radius: 999px;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  border: 1.5px solid var(--ink);
  box-shadow: 4px 4px 0 var(--accent);
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 48px);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.78rem;
  flex-shrink: 0;
  font-family: var(--font-display);
}