/* =============================================
   BUTTONFORGE — style.css (minimal)
   ============================================= */

:root {
  --bg: #111113;
  --bg-card: #18181b;
  --bg-input: #1f1f23;
  --border: #27272a;
  --border-focus: #52525b;
  --text: #e4e4e7;
  --text-dim: #52525b;
  --text-mid: #71717a;
  --accent: #3b6fe0;
  --green: #4ade80;
  --radius: 8px;
  --font: system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Mono', ui-monospace, monospace;
  --t: 0.15s ease;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── HEADER ── */
header {
  padding: 40px 24px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.logo {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.tagline {
  font-size: 0.78rem;
  color: var(--text-dim);
  padding-left: 15px;
}

/* ── MAIN ── */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── CARD ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.section-label {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

/* ── INPUT ── */
.color-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.swatch-wrap {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.swatch-wrap input[type="color"] {
  width: 100%;
  height: 100%;
  border: none;
  cursor: pointer;
  padding: 0;
  appearance: none;
  background: none;
}
.swatch-wrap input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.swatch-wrap input[type="color"]::-webkit-color-swatch { border: none; }

.hex-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.88rem;
  padding: 10px 14px;
  width: 140px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: border-color var(--t);
}
.hex-input:focus { outline: none; border-color: var(--border-focus); }
.hex-input.error { border-color: #f87171; color: #f87171; }

.paste-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-mid);
  font-family: var(--font);
  font-size: 0.78rem;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}
.paste-btn:hover { border-color: var(--border-focus); color: var(--text); }

/* Presets */
.presets-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.presets-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-right: 2px;
}

.preset-chip {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-mid);
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 4px 12px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t), background var(--t);
}
.preset-chip:hover { border-color: var(--border-focus); color: var(--text); }
.preset-chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── PREVIEW ── */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.preview-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.state-label {
  font-size: 0.67rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.demo-btn {
  padding: 8px 14px;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.12s ease, transform 0.08s ease, box-shadow 0.12s ease, outline 0.12s ease;
}

.live-btn-wrap {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.live-hint { font-size: 0.7rem; color: var(--text-dim); }

.live-btn { width: 160px; padding: 12px 24px; font-size: 0.88rem; }

/* ── COLORS ── */
.color-rows {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--bg-input);
}

.color-row-swatch {
  width: 26px;
  height: 26px;
  border-radius: 4px;
  flex-shrink: 0;
}

.color-row-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  width: 60px;
  flex-shrink: 0;
  text-transform: capitalize;
}

.color-row-hex {
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--text);
  flex: 1;
  text-transform: uppercase;
}

.copy-row-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.67rem;
  padding: 4px 10px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}
.copy-row-btn:hover { border-color: var(--border-focus); color: var(--text); }
.copy-row-btn.copied { border-color: var(--green); color: var(--green); }

.copy-all-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-mid);
  font-size: 0.78rem;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}
.copy-all-btn:hover { border-color: var(--border-focus); color: var(--text); }

/* ── CONTROLS ── */
.sliders-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.slider-row label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-mid);
  margin-bottom: 8px;
}

.slider-val {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text);
}

.slider {
  width: 100%;
  height: 2px;
  appearance: none;
  background: var(--border);
  border-radius: 1px;
  outline: none;
  cursor: pointer;
}
.slider::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  cursor: pointer;
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 1px var(--border-focus);
}
.slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid var(--bg-card);
  border-radius: 50%;
  background: var(--text);
  cursor: pointer;
}

.toggles-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-mid);
  cursor: pointer;
  user-select: none;
  padding: 7px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color var(--t), color var(--t);
}
.toggle-label:hover { border-color: var(--border-focus); color: var(--text); }

.toggle-cb { display: none; }

.toggle-track {
  width: 30px;
  height: 17px;
  background: var(--border);
  border-radius: 9px;
  position: relative;
  transition: background var(--t);
  flex-shrink: 0;
}
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 13px;
  height: 13px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform 0.18s ease, background 0.18s ease;
}
.toggle-cb:checked + .toggle-track { background: var(--accent); }
.toggle-cb:checked + .toggle-track .toggle-thumb {
  transform: translateX(13px);
  background: #fff;
}

/* ── EXPORT ── */
.export-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 5px 12px;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: border-color var(--t), color var(--t), background var(--t);
  text-transform: uppercase;
}
.tab-btn:hover { border-color: var(--border-focus); color: var(--text); }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.export-code-wrap { position: relative; }

.export-code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-mid);
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
  min-height: 110px;
}

.copy-export-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.67rem;
  padding: 4px 10px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}
.copy-export-btn:hover { border-color: var(--border-focus); color: var(--text); }

/* ── SHARE ── */
.share-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
  transition: opacity var(--t);
}
.share-btn:hover { opacity: 0.85; }
.share-btn.secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-mid);
}
.share-btn.secondary:hover { border-color: var(--border-focus); color: var(--text); opacity: 1; }

.share-link-wrap {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.share-link-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-mid);
  font-family: var(--mono);
  font-size: 0.74rem;
  padding: 8px 12px;
  min-width: 0;
}
.share-link-input:focus { outline: none; }

.copy-link-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-mid);
  font-size: 0.78rem;
  padding: 8px 14px;
  cursor: pointer;
  transition: border-color var(--t), color var(--t);
}
.copy-link-btn:hover { border-color: var(--border-focus); color: var(--text); }

.saved-palettes { display: flex; flex-wrap: wrap; gap: 8px; }

.palette-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 11px;
  cursor: pointer;
  transition: border-color var(--t);
  font-size: 0.74rem;
  color: var(--text-mid);
  font-family: var(--mono);
}
.palette-chip:hover { border-color: var(--border-focus); }
.palette-chip-swatches { display: flex; gap: 3px; }
.palette-chip-swatch { width: 10px; height: 10px; border-radius: 2px; }
.palette-chip-del {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.65rem;
  padding: 0 2px;
  line-height: 1;
  transition: color var(--t);
}
.palette-chip-del:hover { color: #f87171; }

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 24px 20px 40px;
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-card);
  border: 1px solid var(--border-focus);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.75rem;
  padding: 8px 16px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 1000;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 560px) {
  header { padding: 28px 16px 16px; }
  main { padding: 0 16px 60px; }
  .card { padding: 16px; }
  .preview-grid { grid-template-columns: repeat(3, 1fr); }
}