/* ==========================================================================
   Design Tokens — Basic Design System (Brutalist)
   ========================================================================== */

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

:root {
  /* Color — stark black/white/gray, no accent color */
  --color-black: #000000;
  --color-white: #ffffff;

  --color-gray-100: #f2f2f2;
  --color-gray-200: #e0e0e0;
  --color-gray-300: #c4c4c4;
  --color-gray-400: #a0a0a0;
  --color-gray-500: #7a7a7a;
  --color-gray-600: #555555;
  --color-gray-700: #383838;
  --color-gray-800: #1f1f1f;
  --color-gray-900: #0a0a0a;

  /* Semantic aliases */
  --color-bg: var(--color-gray-200);
  --color-fg: var(--color-black);
  --color-border: var(--color-black);
  --color-muted: var(--color-gray-500);

  /* Typography */
  --font-family-base: 'JetBrains Mono', monospace;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.25rem;   /* 20px */
  --font-size-xl: 1.5rem;    /* 24px */
  --font-size-2xl: 2rem;     /* 32px */
  --font-size-3xl: 3rem;     /* 48px */
  --font-size-4xl: 4rem;     /* 64px */

  --line-height-tight: 1.1;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing — 4px scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
}

body {
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-family-base);
  font-weight: var(--font-weight-regular);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  margin: 0;
}

/* ==========================================================================
   Button
   ========================================================================== */

.Button {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border: 2px solid var(--color-border);
  background: var(--color-fg);
  color: var(--color-bg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.Button:hover {
  background: var(--color-bg);
  color: var(--color-fg);
}

.Button--secondary {
  background: var(--color-bg);
  color: var(--color-fg);
}

.Button--secondary:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.Button:disabled {
  border-color: var(--color-muted);
  background: var(--color-bg);
  color: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Radio
   ========================================================================== */

.Radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
}

.Radio__input {
  appearance: none;
  -webkit-appearance: none;
  display: inline-grid;
  place-content: center;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-bg);
  cursor: pointer;
}

.Radio__input::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-fg);
  transform: scale(0);
}

.Radio__input:checked::before {
  transform: scale(1);
}

.Radio__input:disabled {
  border-color: var(--color-muted);
  cursor: not-allowed;
}

.Radio__input:disabled::before {
  background: var(--color-muted);
}

.Radio__input:disabled ~ .Radio__label {
  color: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Checkbox
   ========================================================================== */

.Checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
}

.Checkbox__input {
  appearance: none;
  -webkit-appearance: none;
  display: inline-grid;
  place-content: center;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
}

.Checkbox__input::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--color-fg);
  clip-path: polygon(
    14% 44%, 0% 65%, 36% 100%, 100% 20%, 80% 0%, 34% 61%
  );
  transform: scale(0);
}

.Checkbox__input:checked::before {
  transform: scale(1);
}

.Checkbox__input:disabled {
  border-color: var(--color-muted);
  cursor: not-allowed;
}

.Checkbox__input:disabled::before {
  background: var(--color-muted);
}

.Checkbox__input:disabled ~ .Checkbox__label {
  color: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Input
   ========================================================================== */

.Input {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.Input__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.Input__field {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

.Input__field::placeholder {
  color: var(--color-muted);
}

.Input__field:focus {
  outline: none;
  box-shadow: 4px 4px 0 var(--color-border);
}

.Input__field:disabled {
  border-color: var(--color-muted);
  color: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Slider
   ========================================================================== */

.Slider {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.Slider__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.Slider__field {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  margin: var(--space-2) 0;
  background: transparent;
  cursor: pointer;
}

.Slider__field::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--color-border);
}

.Slider__field::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin-top: -8px;
  border: 2px solid var(--color-border);
  background: var(--color-fg);
  cursor: pointer;
}

.Slider__field::-moz-range-track {
  height: 4px;
  background: var(--color-border);
}

.Slider__field::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-radius: 0;
  background: var(--color-fg);
  cursor: pointer;
}

.Slider__field:disabled {
  cursor: not-allowed;
}

.Slider__field:disabled::-webkit-slider-runnable-track {
  background: var(--color-muted);
}

.Slider__field:disabled::-webkit-slider-thumb {
  border-color: var(--color-muted);
  background: var(--color-muted);
  cursor: not-allowed;
}

.Slider__field:disabled::-moz-range-track {
  background: var(--color-muted);
}

.Slider__field:disabled::-moz-range-thumb {
  border-color: var(--color-muted);
  background: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Select
   ========================================================================== */

.Select {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.Select__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.Select__control {
  position: relative;
}

.Select__control::after {
  content: "▾";
  position: absolute;
  top: 50%;
  right: var(--space-3);
  transform: translateY(-50%);
  pointer-events: none;
}

.Select__field {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: var(--space-2) var(--space-6) var(--space-2) var(--space-3);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  cursor: pointer;
}

.Select__field:focus {
  outline: none;
  box-shadow: 4px 4px 0 var(--color-border);
}

.Select__field:disabled {
  border-color: var(--color-muted);
  color: var(--color-muted);
  cursor: not-allowed;
}

/* ==========================================================================
   Avatar
   ========================================================================== */

.Avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  overflow: hidden;
  border: 2px solid var(--color-border);
  background: var(--color-fg);
  color: var(--color-bg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
}

.Avatar__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.Avatar--sm {
  width: 28px;
  height: 28px;
  font-size: var(--font-size-xs);
}

.Avatar--lg {
  width: 56px;
  height: 56px;
  font-size: var(--font-size-lg);
}

/* ==========================================================================
   Badge
   ========================================================================== */

.Badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.Badge--inverted {
  background: var(--color-fg);
  color: var(--color-bg);
}

/* ==========================================================================
   Accordion
   ========================================================================== */

.Accordion {
  width: 100%;
  border: 2px solid var(--color-border);
}

.Accordion__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  cursor: pointer;
  list-style: none;
}

.Accordion__summary::-webkit-details-marker {
  display: none;
}

.Accordion__summary::after {
  content: "+";
  font-weight: var(--font-weight-extrabold);
}

.Accordion[open] > .Accordion__summary::after {
  content: "\2212";
}

.Accordion__summary:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.Accordion__content {
  padding: var(--space-4);
  border-top: 2px solid var(--color-border);
  color: var(--color-muted);
}

/* ==========================================================================
   Table
   ========================================================================== */

.Table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.Table__head {
  border-bottom: 2px solid var(--color-border);
}

.Table__heading {
  padding: var(--space-2) var(--space-3);
  font-weight: var(--font-weight-bold);
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.Table__row {
  border-bottom: 2px solid var(--color-border);
}

.Table__row:last-child {
  border-bottom: none;
}

.Table__cell {
  padding: var(--space-2) var(--space-3);
}

/* ==========================================================================
   Spinner
   ========================================================================== */

.Spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-muted);
  border-top-color: var(--color-fg);
  animation: Spinner-spin 0.8s linear infinite;
}

.Spinner--sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.Spinner--lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

@keyframes Spinner-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .Spinner {
    animation-duration: 2.4s;
  }
}

/* ==========================================================================
   Alert
   ========================================================================== */

.Alert {
  display: flex;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
}

.Alert__icon {
  font-weight: var(--font-weight-extrabold);
}

.Alert__title {
  margin: 0 0 var(--space-1);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.Alert__message {
  margin: 0;
  color: var(--color-muted);
}

.Alert--inverted {
  background: var(--color-fg);
  color: var(--color-bg);
}

.Alert--inverted .Alert__message {
  color: var(--color-gray-400);
}

/* ==========================================================================
   Card
   ========================================================================== */

.Card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-5);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
}

.Card__title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
}

.Card__description {
  margin: 0;
  color: var(--color-muted);
  line-height: var(--line-height-relaxed);
}

.Card__footer {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.Modal {
  width: 90vw;
  max-width: 600px;
  padding: 0;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-family-base);
}

.Modal::backdrop {
  background: rgba(0, 0, 0, 0.7);
}

.Modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 2px solid var(--color-border);
}

.Modal__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
}

.Modal__close {
  width: 32px;
  height: 32px;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-fg);
  font-size: var(--font-size-lg);
  line-height: 1;
  cursor: pointer;
}

.Modal__close:hover {
  background: var(--color-fg);
  color: var(--color-bg);
}

.Modal__preview {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-5);
  border-bottom: 2px solid var(--color-border);
}

.Modal__codeWrap {
  position: relative;
}

.Modal__copy {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border: 2px solid var(--color-border);
  background: var(--color-fg);
  color: var(--color-bg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.Modal__copy:hover {
  background: var(--color-bg);
  color: var(--color-fg);
}

.Modal__code {
  margin: 0;
  padding: var(--space-5);
  overflow-x: auto;
  font-size: var(--font-size-sm);
  white-space: pre;
}