/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Palette CSS Variables — updated by JS */
  --color-primary: oklch(0.55 0.20 250);
  --color-primary-light: oklch(0.72 0.15 250);
  --color-primary-dark: oklch(0.38 0.22 250);
  --color-secondary: oklch(0.55 0.18 280);
  --color-secondary-light: oklch(0.72 0.13 280);
  --color-secondary-dark: oklch(0.38 0.20 280);
  --color-accent: oklch(0.60 0.22 200);
  --color-accent-light: oklch(0.75 0.16 200);
  --color-accent-dark: oklch(0.42 0.24 200);
  --color-success: oklch(0.60 0.18 145);
  --color-warning: oklch(0.72 0.18 80);
  --color-error: oklch(0.58 0.22 25);

  /* Theme Tokens — Light */
  --bg-base: oklch(0.98 0.005 250);
  --bg-surface: oklch(0.96 0.008 250);
  --bg-elevated: oklch(1 0 0);
  --bg-sunken: oklch(0.93 0.010 250);
  --text-primary: oklch(0.18 0.02 250);
  --text-secondary: oklch(0.42 0.03 250);
  --text-muted: oklch(0.60 0.02 250);
  --text-inverse: oklch(0.98 0.005 250);
  --border-subtle: oklch(0.88 0.015 250);
  --border-default: oklch(0.80 0.020 250);
  --shadow-sm: 0 1px 3px oklch(0.18 0.02 250 / 0.08);
  --shadow-md: 0 4px 12px oklch(0.18 0.02 250 / 0.12);
  --shadow-lg: 0 8px 32px oklch(0.18 0.02 250 / 0.16);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Vazirmatn', 'Segoe UI', Tahoma, Arial, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Transitions */
  --transition-fast: 120ms ease;
  --transition-base: 220ms ease;
  --transition-slow: 380ms ease;
}

[data-theme="dark"] {
  --bg-base: oklch(0.14 0.015 250);
  --bg-surface: oklch(0.18 0.018 250);
  --bg-elevated: oklch(0.22 0.020 250);
  --bg-sunken: oklch(0.11 0.012 250);
  --text-primary: oklch(0.94 0.008 250);
  --text-secondary: oklch(0.72 0.015 250);
  --text-muted: oklch(0.55 0.012 250);
  --text-inverse: oklch(0.14 0.015 250);
  --border-subtle: oklch(0.28 0.020 250);
  --border-default: oklch(0.35 0.025 250);
  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.30);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.40);
  --shadow-lg: 0 8px 32px oklch(0 0 0 / 0.50);
}
/* ===== Vazirmatn FD-NL Font Face ===== */
@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Thin.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Thin.ttf') format('truetype');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-ExtraLight.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-ExtraLight.ttf') format('truetype');
  font-weight: 200;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Light.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Regular.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Medium.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-SemiBold.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Bold.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-ExtraBold.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-ExtraBold.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('./assets/font/Vazirmatn-FD-NL-Black.woff2') format('woff2'),
       url('./assets/font/Vazirmatn-FD-NL-Black.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Vazirmatn';
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  min-height: 100vh;
}

/* ===== App Wrapper ===== */
.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== Header ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.brand-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-sub {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-weight: 400;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  color: var(--text-secondary);

  font-family: 'Vazirmatn';

  font-size: var(--text-sm);
  transition: all var(--transition-base);
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: oklch(from var(--color-primary) l c h / 0.06);
}

.toggle-track {
  width: 2.5rem;
  height: 1.375rem;
  background-color: var(--border-default);
  border-radius: var(--radius-full);
  position: relative;
  transition: background-color var(--transition-base);
  flex-shrink: 0;
}

[data-theme="dark"] .toggle-track {
  background-color: var(--color-primary);
}

.toggle-thumb {
  position: absolute;
  top: 0.1875rem;
  right: 0.1875rem;
  width: 1rem;
  height: 1rem;
  background-color: white;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .toggle-thumb {
  transform: translateX(-1.125rem);
}

/* ===== Main Layout ===== */
.app-main {
  flex: 1;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  padding: var(--space-6);
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: var(--space-6);
  align-items: start;
}

/* ===== Controls Panel ===== */
.controls-panel {
  position: sticky;
  top: calc(68px + var(--space-6));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-height: calc(100vh - 68px - var(--space-12));
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-default) transparent;
  padding-left: var(--space-2);
}

.controls-panel::-webkit-scrollbar {
  width: 4px;
}

.controls-panel::-webkit-scrollbar-track {
  background: transparent;
}

.controls-panel::-webkit-scrollbar-thumb {
  background-color: var(--border-default);
  border-radius: var(--radius-full);
}

/* ===== Control Section ===== */
.control-section {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

/* ===== Color Picker ===== */
.color-picker-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.color-swatch-preview {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-md);
  background-color: var(--color-primary);
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-base);
  border: 2px solid var(--border-subtle);
}

.color-picker-inputs {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
}

.color-input {
  width: 100%;
  height: 2.5rem;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 0.125rem;
  background-color: var(--bg-surface);
  transition: border-color var(--transition-base);
}

.color-input:hover,
.color-input:focus {
  border-color: var(--color-primary);
  outline: none;
}

.oklch-display {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-family: 'Vazirmatn';

  background-color: var(--bg-sunken);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}

.oklch-label {
  font-weight: 600;
  color: var(--color-primary);
}

/* ===== Sliders ===== */
.slider-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.slider-track-container {
  position: relative;
}

.range-input {
  width: 100%;
  height: 0.375rem;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.range-input::-webkit-slider-runnable-track {
  height: 0.375rem;
  background: var(--border-default);
  border-radius: var(--radius-full);
}

.range-input::-moz-range-track {
  height: 0.375rem;
  background: var(--border-default);
  border-radius: var(--radius-full);
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 2px solid white;
  box-shadow: 0 2px 6px oklch(0 0 0 / 0.25);
  margin-top: -0.4375rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.range-input::-moz-range-thumb {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 2px solid white;
  box-shadow: 0 2px 6px oklch(0 0 0 / 0.25);
  cursor: pointer;
}

.range-input:hover::-webkit-slider-thumb,
.range-input:focus::-webkit-slider-thumb {
  transform: scale(1.15);
  box-shadow: 0 3px 10px oklch(from var(--color-primary) l c h / 0.40);
}

.slider-value-display {
  text-align: center;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  font-family: 'Vazirmatn';

}

/* ===== Pattern Grid ===== */
.pattern-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.pattern-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  padding: var(--space-3);
  background-color: var(--bg-surface);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: right;
  font-family: 'Vazirmatn';

}

.pattern-btn:hover {
  border-color: var(--color-primary);
  background-color: oklch(from var(--color-primary) l c h / 0.05);
}

.pattern-btn.active {
  border-color: var(--color-primary);
  background-color: oklch(from var(--color-primary) l c h / 0.10);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

.pattern-icon {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-1);
  height: 12px;
  align-items: center;
}

.pattern-icon span {
  display: block;
  border-radius: 2px;
}

/* Pattern icon visuals */
.monochromatic-icon::before {
  content: '';
  display: flex;
}

.pattern-icon {
  display: flex;
  gap: 3px;
  align-items: center;
}

.monochromatic-icon { background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-light)); width: 100%; height: 10px; border-radius: 3px; }
.complementary-icon { background: linear-gradient(90deg, var(--color-primary), var(--color-secondary)); width: 100%; height: 10px; border-radius: 3px; }
.analogous-icon { background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary), var(--color-accent)); width: 100%; height: 10px; border-radius: 3px; }
.triadic-icon { background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent)); width: 100%; height: 10px; border-radius: 3px; }
.split-icon { background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-secondary-light)); width: 100%; height: 10px; border-radius: 3px; }
.tetradic-icon { background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent), var(--color-primary-dark)); width: 100%; height: 10px; border-radius: 3px; }
.square-icon { background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-secondary), var(--color-primary-light)); width: 100%; height: 10px; border-radius: 3px; }
.shades-icon { background: linear-gradient(90deg, oklch(0.95 0.05 250), var(--color-primary), oklch(0.20 0.15 250)); width: 100%; height: 10px; border-radius: 3px; }

.pattern-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.pattern-desc {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.3;
}

/* ===== Advanced Controls ===== */
.advanced-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.control-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.control-value {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  font-family: 'Vazirmatn';

  text-align: center;
}

/* ===== Output Panel ===== */
.output-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* ===== Palette Swatches ===== */
.palette-section {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.palette-header .section-title {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.palette-actions {
  display: flex;
  gap: var(--space-2);
}

.palette-swatches {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.swatch-item {
  flex: 1;
  min-width: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.swatch-item:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.swatch-color {
  height: 90px;
  transition: background-color var(--transition-base);
}

.swatch-info {
  background-color: var(--bg-elevated);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-subtle);
  border-top: none;
}

.swatch-name {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 2px;
}

.swatch-hex {
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-family: 'Vazirmatn';

  display: block;
}

.swatch-oklch {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-family: 'Vazirmatn';

  display: block;
  margin-top: 2px;
  opacity: 0.75;
}

/* ===== Action Buttons ===== */
.action-btn {
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary);
  color: oklch(0.98 0.01 250);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Vazirmatn';

  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.action-btn:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.action-btn.secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.action-btn.secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: oklch(from var(--color-primary) l c h / 0.06);
}

.action-btn.full-width {
  width: 100%;
  padding: var(--space-3) var(--space-4);
}

/* ===== Preview Section ===== */
.preview-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.preview-section > .section-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

/* ===== Banner Preview ===== */
.preview-banner {
  background-color: var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-12);
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-slow);
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.banner-eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: oklch(from var(--color-primary) calc(l + 0.35) calc(c * 0.5) h);
  background-color: oklch(from var(--color-primary) calc(l + 0.20) calc(c * 0.3) h / 0.25);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.banner-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: oklch(0.98 0.01 250);
  line-height: 1.25;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.banner-body {
  font-size: var(--text-base);
  color: oklch(from var(--color-primary) calc(l + 0.40) calc(c * 0.3) h);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.banner-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.banner-accent {
  position: absolute;
  inset-inline-start: -80px;
  bottom: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background-color: oklch(from var(--color-primary) calc(l - 0.10) c h / 0.40);
  z-index: 1;
  transition: background-color var(--transition-slow);
}

/* ===== Buttons in Preview ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-family: 'Vazirmatn';

  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  line-height: 1;
}

.btn-primary {
  background-color: var(--bg-elevated);
  color: var(--color-primary);
  border-color: var(--bg-elevated);
}

.btn-primary:hover {
  background-color: oklch(0.98 0.01 250);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px oklch(0 0 0 / 0.20);
}

.btn-secondary {
  background-color: oklch(from var(--color-primary) l c h / 0.20);
  color: oklch(0.98 0.01 250);
  border-color: oklch(from var(--color-primary) calc(l + 0.20) calc(c * 0.5) h / 0.40);
}

.btn-secondary:hover {
  background-color: oklch(from var(--color-primary) l c h / 0.35);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  color: oklch(0.98 0.01 250);
  border-color: oklch(0.98 0.01 250 / 0.35);
}

.btn-ghost:hover {
  background-color: oklch(0.98 0.01 250 / 0.12);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: oklch(0.98 0.01 250);
  border-color: transparent;
}

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background-color: var(--color-error);
  color: oklch(0.98 0.01 250);
  border-color: transparent;
}

.btn-danger:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== Typography Preview ===== */
.preview-typography {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.typo-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.typo-heading {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.typo-body {
  font-size: var(--text-base);
  color: var(--text-primary);
  line-height: 1.75;
}

.typo-muted {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.65;
}

.typo-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.typo-link {
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-fast);
  border-bottom: 1px solid oklch(from var(--color-primary) l c h / 0.35);
  padding-bottom: 1px;
}

.typo-link:hover {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary-dark);
}

.typo-separator {
  color: var(--border-default);
  font-size: var(--text-sm);
}

/* ===== Components Preview ===== */
.preview-components {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.components-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

.components-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.component-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.component-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Buttons Row in Components */
.buttons-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.buttons-row .btn {
  background-color: var(--color-primary);
  color: oklch(0.98 0.01 250);
  border-color: transparent;
}

.buttons-row .btn:hover {
  background-color: var(--color-primary-dark);
}

.buttons-row .btn-secondary {
  background-color: var(--color-secondary);
}

.buttons-row .btn-secondary:hover {
  background-color: var(--color-secondary-dark);
}

.buttons-row .btn-accent {
  background-color: var(--color-accent);
}

.buttons-row .btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.buttons-row .btn-ghost:hover {
  background-color: oklch(from var(--color-primary) l c h / 0.08);
}

/* Badges */
.badges-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.badge-primary {
  background-color: oklch(from var(--color-primary) l c h / 0.15);
  color: var(--color-primary-dark);
}

.badge-secondary {
  background-color: oklch(from var(--color-secondary) l c h / 0.15);
  color: var(--color-secondary-dark);
}

.badge-accent {
  background-color: oklch(from var(--color-accent) l c h / 0.15);
  color: var(--color-accent-dark);
}

.badge-success {
  background-color: oklch(from var(--color-success) l c h / 0.15);
  color: oklch(from var(--color-success) calc(l - 0.15) c h);
}

.badge-warning {
  background-color: oklch(from var(--color-warning) l c h / 0.20);
  color: oklch(from var(--color-warning) calc(l - 0.25) c h);
}

.badge-error {
  background-color: oklch(from var(--color-error) l c h / 0.15);
  color: oklch(from var(--color-error) calc(l - 0.12) c h);
}

/* Cards */
.cards-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.preview-card {
  flex: 1;
  min-width: 140px;
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.preview-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-header-line {
  height: 3px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.card-primary {
  background-color: oklch(from var(--color-primary) l c h / 0.06);
  border-color: oklch(from var(--color-primary) l c h / 0.20);
}

.card-primary .card-header-line {
  background-color: var(--color-primary);
}

.card-secondary {
  background-color: oklch(from var(--color-secondary) l c h / 0.06);
  border-color: oklch(from var(--color-secondary) l c h / 0.20);
}

.card-secondary .card-header-line {
  background-color: var(--color-secondary);
}

.card-accent {
  background-color: oklch(from var(--color-accent) l c h / 0.06);
  border-color: oklch(from var(--color-accent) l c h / 0.20);
}

.card-accent .card-header-line {
  background-color: var(--color-accent);
}

.card-title-text {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.card-body-text {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Progress Bars */
.progress-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.progress-bar-wrapper {
  display: grid;
  grid-template-columns: 80px 1fr 36px;
  align-items: center;
  gap: var(--space-3);
}

.progress-name {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: 500;
}

.progress-track {
  height: 8px;
  background-color: var(--bg-sunken);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow), background-color var(--transition-slow);
}

.progress-primary { background-color: var(--color-primary); }
.progress-secondary { background-color: var(--color-secondary); }
.progress-accent { background-color: var(--color-accent); }

.progress-pct {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  font-family: 'Vazirmatn';

  text-align: left;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: oklch(0 0 0 / 0.55);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  backdrop-filter: blur(4px);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-base);
}

.modal-overlay.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  color: var(--text-secondary);
  font-family: 'Vazirmatn';

  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  border-color: var(--color-error);
  color: var(--color-error);
}

.modal-code {
  flex: 1;
  overflow-y: auto;
  background-color: var(--bg-sunken);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-family: 'Vazirmatn';

  font-size: var(--text-xs);
  color: var(--text-primary);
  line-height: 1.7;
  white-space: pre;
  scrollbar-width: thin;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(calc(100% + 20px));
  background-color: var(--text-primary);
  color: var(--bg-base);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 2000;
  transition: transform var(--transition-base);
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

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

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .app-main {
    grid-template-columns: 300px 1fr;
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .preview-banner {
    padding: var(--space-8);
  }
}

@media (max-width: 880px) {
  .app-main {
    grid-template-columns: 1fr;
    padding: var(--space-4);
  }

  .controls-panel {
    position: static;
    max-height: none;
    overflow-y: visible;
  }

  .pattern-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .banner-title {
    font-size: var(--text-2xl);
  }

  .preview-banner {
    padding: var(--space-6);
  }
}

@media (max-width: 600px) {
  .header-inner {
    padding: var(--space-3) var(--space-4);
  }

  .brand-title {
    font-size: var(--text-xl);
  }

  .toggle-label {
    display: none;
  }

  .app-main {
    padding: var(--space-3);
    gap: var(--space-3);
  }

  .pattern-grid {
    grid-template-columns: 1fr 1fr;
  }

  .swatch-item {
    min-width: 60px;
  }

  .swatch-color {
    height: 64px;
  }

  .palette-actions {
    flex-direction: column;
  }

  .progress-bar-wrapper {
    grid-template-columns: 64px 1fr 32px;
  }

  .banner-title {
    font-size: var(--text-xl);
  }

  .banner-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .cards-row {
    flex-direction: column;
  }

  .preview-typography,
  .preview-components {
    padding: var(--space-5);
  }

  .preview-banner {
    padding: var(--space-5);
  }

  .banner-accent {
    width: 180px;
    height: 180px;
    inset-inline-start: -50px;
    bottom: -50px;
  }
}

@media (max-width: 400px) {
  .pattern-grid {
    grid-template-columns: 1fr;
  }
}