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

:root {
  --bg: #0f0f1a;
  --surface: #1a1a2e;
  --surface2: #22223b;
  --accent: #6c63ff;
  --accent2: #ff6584;
  --text: #f0f0f8;
  --text-muted: #888aa0;
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid #ffffff10;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav { display: flex; gap: 0.5rem; }

.tab-btn {
  background: transparent;
  border: 1px solid #ffffff20;
  color: var(--text-muted);
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
}
.tab-btn:hover { border-color: var(--accent); color: var(--text); }
.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  font-weight: 600;
}

.tab-content { display: none; flex: 1; padding: 2rem; max-width: 1100px; margin: 0 auto; width: 100%; }
.tab-content.active { display: block; }

.section-header { margin-bottom: 2rem; text-align: center; }
.section-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p { color: var(--text-muted); font-size: 1rem; }

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  background: var(--surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
  border: 1px solid #ffffff08;
}

.control-group { display: flex; flex-direction: column; gap: 0.4rem; }
.control-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.control-group label small { text-transform: none; letter-spacing: 0; font-weight: 400; }

.color-pick-row { display: flex; gap: 0.5rem; align-items: center; }

input[type="color"] {
  width: 48px; height: 40px;
  border: none; border-radius: var(--radius-sm);
  cursor: pointer; padding: 2px;
  background: var(--surface2);
}

input[type="text"] {
  background: var(--surface2);
  border: 1px solid #ffffff15;
  color: var(--text);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: monospace;
  width: 100px;
}
input[type="text"]:focus { outline: none; border-color: var(--accent); }

select {
  background: var(--surface2);
  border: 1px solid #ffffff15;
  color: var(--text);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  min-width: 160px;
}
select:focus { outline: none; border-color: var(--accent); }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #8b85ff);
  color: white;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(108,99,255,0.4); }

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid #ffffff15;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.full-width { width: 100%; border-radius: var(--radius-sm) !important; margin-top: 0.5rem; }

.palette-display {
  display: flex;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  height: 160px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  margin-bottom: 1rem;
}

.swatch {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 0.8rem;
  cursor: pointer;
  transition: flex 0.3s ease, transform 0.2s;
  position: relative;
  overflow: hidden;
}
.swatch:hover { flex: 2; }
.swatch .swatch-hex {
  font-size: 0.75rem;
  font-family: monospace;
  font-weight: 600;
  background: rgba(0,0,0,0.35);
  padding: 3px 8px;
  border-radius: 999px;
  opacity: 0;
  transition: opacity 0.2s;
}
.swatch:hover .swatch-hex { opacity: 1; }
.swatch .swatch-name {
  font-size: 0.7rem;
  opacity: 0.7;
  margin-top: 3px;
}

.palette-info { text-align: center; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 2rem; }

.saved-section { margin-top: 2rem; }
.saved-section h2 { font-family: 'Space Grotesk', sans-serif; font-size: 1.2rem; margin-bottom: 1rem; }

.saved-palettes { display: flex; flex-direction: column; gap: 0.8rem; margin-bottom: 1rem; }

.saved-palette {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid #ffffff08;
}
.saved-palette-swatches { display: flex; gap: 4px; flex: 1; }
.mini-swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.1);
  cursor: pointer;
  transition: transform 0.2s;
}
.mini-swatch:hover { transform: scale(1.15); }
.saved-palette-actions { display: flex; gap: 0.4rem; }
.btn-icon {
  background: var(--surface2);
  border: 1px solid #ffffff15;
  color: var(--text);
  width: 30px; height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.btn-icon:hover { border-color: var(--accent2); color: var(--accent2); }

/* PATTERN */
.pattern-workspace {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.pattern-sidebar {
  width: 240px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--surface);
  padding: 1.2rem;
  border-radius: var(--radius);
  border: 1px solid #ffffff08;
}

.pattern-canvas-wrap {
  flex: 1;
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #ffffff08;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}

canvas {
  display: block;
  width: 100%;
  height: auto;
}

.pattern-colors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.pat-color {
  width: 36px; height: 36px;
  border-radius: 50%;
  padding: 2px;
  border: 2px solid rgba(255,255,255,0.2);
  cursor: pointer;
  background: transparent;
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(4rem);
  background: var(--surface2);
  color: var(--text);
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9rem;
  border: 1px solid var(--accent);
  transition: transform 0.3s ease;
  z-index: 999;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }

footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid #ffffff08;
  margin-top: auto;
}

@media (max-width: 768px) {
  .pattern-workspace { flex-direction: column; }
  .pattern-sidebar { width: 100%; }
  header { flex-direction: column; gap: 0.8rem; }
  .controls-row { flex-direction: column; }
}