/* ==========================================================================
   1. Tokens
   ========================================================================== */

:root {
  --lecp-bg: #000000;
  --lecp-surface: #1a1a1a;
  --lecp-surface-hover: #222222;
  --lecp-surface-raised: #262626;
  --lecp-text: #ffffff;
  --lecp-text-secondary: #a0a0a0;
  --lecp-line: #333333;

  --lecp-accent: #0078d4;
  --lecp-accent-hover: #0086ee;
  --lecp-accent-soft: #a3c9ff;
  --lecp-on-accent: #ffffff;

  --lecp-success: #4caf50;
  --lecp-warning: #ffb900;
  --lecp-error: #e8453c;
  --lecp-disabled-text: #6b6b6b;

  --lecp-space-1: 4px;
  --lecp-space-2: 8px;
  --lecp-space-3: 12px;
  --lecp-space-4: 16px;
  --lecp-space-5: 24px;
  --lecp-space-6: 32px;
  --lecp-space-7: 48px;
  --lecp-space-8: 64px;

  --lecp-motion-focus: 120ms;
  --lecp-motion-activate: 100ms;
  --lecp-motion-dismiss: 200ms;
  --lecp-motion-page: 240ms;
  --lecp-ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --lecp-ease-exit: cubic-bezier(0.7, 0, 0.84, 0);
  --lecp-ease-focus: cubic-bezier(0.2, 0, 0.2, 1);

  --lecp-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --lecp-elevation-2: 0 8px 24px rgba(0, 0, 0, 0.5);

  --lecp-font: 'Hanken Grotesk', system-ui, sans-serif;
  --lecp-type-caption: 0.8125rem;
  --lecp-type-meta: 0.875rem;
  --lecp-type-body: 1rem;
  --lecp-type-tile: 1.25rem;
  --lecp-type-section: 1.5rem;
  --lecp-type-title: 2.5rem;
  --lecp-type-display: 4rem;
  --lecp-line-height: 1.5;
  --lecp-line-height-tight: 1.15;

  --lecp-gap: 12px;
  --lecp-margin: 48px;
  --lecp-margin-compact: 16px;
  --lecp-container-max: 1200px;
}

/* ==========================================================================
   2. Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--lecp-bg);
  color: var(--lecp-text);
  font-family: var(--lecp-font);
  font-size: 16px;
  line-height: var(--lecp-line-height);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--lecp-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ==========================================================================
   3. Accessibility utilities
   ========================================================================== */

.lecp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.lecp-skip-link {
  position: fixed;
  top: -100px;
  left: var(--lecp-space-4);
  z-index: 100;
  background: var(--lecp-accent);
  color: var(--lecp-on-accent);
  padding: var(--lecp-space-3) var(--lecp-space-4);
  font-weight: 600;
  transition: top var(--lecp-motion-focus) var(--lecp-ease-focus);
}

.lecp-skip-link:focus-visible {
  top: var(--lecp-space-4);
  outline-offset: 4px;
}

/* ==========================================================================
   4. Typography
   ========================================================================== */

.lecp-display {
  font-size: var(--lecp-type-display);
  font-weight: 300;
  line-height: var(--lecp-line-height-tight);
  letter-spacing: -0.02em;
}

.lecp-title {
  font-size: var(--lecp-type-title);
  font-weight: 300;
  line-height: var(--lecp-line-height-tight);
  letter-spacing: -0.01em;
}

.lecp-section-title {
  font-size: var(--lecp-type-section);
  font-weight: 600;
  line-height: 1.3;
}

.lecp-tile-label {
  font-size: var(--lecp-type-tile);
  font-weight: 500;
  line-height: 1.4;
}

.lecp-body {
  font-size: var(--lecp-type-body);
  color: var(--lecp-text-secondary);
  max-width: 60ch;
}

.lecp-meta {
  font-size: var(--lecp-type-meta);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--lecp-text-secondary);
}

.lecp-caption {
  font-size: var(--lecp-type-caption);
  color: var(--lecp-text-secondary);
}

.lecp-eyebrow {
  font-size: var(--lecp-type-caption);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--lecp-text-secondary);
}

/* ==========================================================================
   5. Layout & Grid
   ========================================================================== */

.lecp-container {
  max-width: var(--lecp-container-max);
  margin: 0 auto;
  padding: 0 var(--lecp-margin);
}

@media (max-width: 719px) {
  .lecp-container {
    padding: 0 var(--lecp-margin-compact);
  }
}

.lecp-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--lecp-gap);
}

[class*="lecp-col-"] {
  grid-column: span 12;
}

/* stylelint-disable */
.lecp-col-1 { grid-column: span 1; }
.lecp-col-2 { grid-column: span 2; }
.lecp-col-3 { grid-column: span 3; }
.lecp-col-4 { grid-column: span 4; }
.lecp-col-5 { grid-column: span 5; }
.lecp-col-6 { grid-column: span 6; }
.lecp-col-7 { grid-column: span 7; }
.lecp-col-8 { grid-column: span 8; }
.lecp-col-9 { grid-column: span 9; }
.lecp-col-10 { grid-column: span 10; }
.lecp-col-11 { grid-column: span 11; }
.lecp-col-12 { grid-column: span 12; }

@media (min-width: 480px) {
  .lecp-col-c-1 { grid-column: span 1; }
  .lecp-col-c-2 { grid-column: span 2; }
  .lecp-col-c-3 { grid-column: span 3; }
  .lecp-col-c-4 { grid-column: span 4; }
  .lecp-col-c-6 { grid-column: span 6; }
  .lecp-col-c-12 { grid-column: span 12; }
}

@media (min-width: 720px) {
  .lecp-col-s-1 { grid-column: span 1; }
  .lecp-col-s-2 { grid-column: span 2; }
  .lecp-col-s-3 { grid-column: span 3; }
  .lecp-col-s-4 { grid-column: span 4; }
  .lecp-col-s-6 { grid-column: span 6; }
  .lecp-col-s-8 { grid-column: span 8; }
  .lecp-col-s-12 { grid-column: span 12; }
}

@media (min-width: 1200px) {
  .lecp-col-w-2 { grid-column: span 2; }
  .lecp-col-w-3 { grid-column: span 3; }
  .lecp-col-w-4 { grid-column: span 4; }
  .lecp-col-w-6 { grid-column: span 6; }
  .lecp-col-w-8 { grid-column: span 8; }
  .lecp-col-w-12 { grid-column: span 12; }
}
/* stylelint-enable */

/* ==========================================================================
   6. Tile / Card
   ========================================================================== */

.lecp-tile {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: var(--lecp-space-3);
  background: var(--lecp-surface);
  padding: var(--lecp-space-5);
  min-height: 160px;
  border: 2px solid transparent;
  transition:
    background var(--lecp-motion-focus) var(--lecp-ease-focus),
    border-color var(--lecp-motion-focus) var(--lecp-ease-focus),
    transform var(--lecp-motion-activate) var(--lecp-ease-focus);
}

a.lecp-tile,
button.lecp-tile {
  cursor: pointer;
}

.lecp-tile:hover {
  background: var(--lecp-surface-hover);
}

.lecp-tile:active {
  transform: scale(0.98);
}

.lecp-tile:focus-visible {
  border-color: var(--lecp-accent);
  background: var(--lecp-surface-hover);
  outline: none;
  transform: translateY(-2px);
}

.lecp-tile--s { min-height: 100px; padding: var(--lecp-space-4); }
.lecp-tile--m { min-height: 160px; }
.lecp-tile--l { min-height: 220px; }
.lecp-tile--xl { min-height: 280px; }

.lecp-tile--primary {
  background: var(--lecp-accent);
  color: var(--lecp-on-accent);
}

.lecp-tile--primary .lecp-meta,
.lecp-tile--primary .lecp-body,
.lecp-tile--primary .lecp-tile-arrow {
  color: var(--lecp-on-accent);
}

.lecp-tile--primary:hover {
  background: var(--lecp-accent-hover);
}

.lecp-tile--primary:focus-visible {
  background: var(--lecp-accent-hover);
  border-color: var(--lecp-on-accent);
}

.lecp-tile[aria-disabled="true"],
.lecp-tile:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.lecp-tile--selected {
  border-color: var(--lecp-accent);
}

.lecp-tile--loading {
  cursor: progress;
  opacity: 0.75;
}

.lecp-tile--error {
  border-color: var(--lecp-error);
}

.lecp-tile-arrow {
  position: absolute;
  right: var(--lecp-space-5);
  bottom: var(--lecp-space-5);
  font-size: 24px;
  color: var(--lecp-text-secondary);
  transition:
    color var(--lecp-motion-focus) var(--lecp-ease-focus),
    transform var(--lecp-motion-focus) var(--lecp-ease-focus);
}

.lecp-tile:hover .lecp-tile-arrow,
.lecp-tile:focus-visible .lecp-tile-arrow {
  color: var(--lecp-accent-soft);
  transform: translateX(4px);
}

.lecp-tile[target="_blank"] .lecp-tile-arrow {
  transform: rotate(-45deg);
}

.lecp-tile[target="_blank"]:hover .lecp-tile-arrow,
.lecp-tile[target="_blank"]:focus-visible .lecp-tile-arrow {
  transform: rotate(-45deg) translateX(3px) translateY(-3px);
}

.lecp-tile-badge {
  align-self: flex-start;
}

/* ==========================================================================
   7. Nav
   ========================================================================== */

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

.lecp-nav[data-orientation="horizontal"] {
  flex-direction: row;
}

.lecp-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--lecp-space-3);
  min-height: 44px;
  padding: var(--lecp-space-4);
  background: var(--lecp-surface);
  border: 2px solid transparent;
  transition:
    background var(--lecp-motion-focus) var(--lecp-ease-focus),
    border-color var(--lecp-motion-focus) var(--lecp-ease-focus);
}

.lecp-nav-item:hover {
  background: var(--lecp-surface-hover);
}

.lecp-nav-item:focus-visible {
  border-color: var(--lecp-accent);
  background: var(--lecp-surface-hover);
  outline: none;
}

.lecp-nav-item.is-active {
  border-color: var(--lecp-accent);
  background: var(--lecp-surface-hover);
}

.lecp-nav-item.is-active .lecp-nav-item-label {
  color: var(--lecp-accent-soft);
}

.lecp-nav-item-index {
  font-size: var(--lecp-type-caption);
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--lecp-text-secondary);
}

.lecp-nav-item-label {
  font-size: var(--lecp-type-body);
  font-weight: 500;
  flex: 1;
}

/* ==========================================================================
   8. Button
   ========================================================================== */

.lecp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--lecp-space-2);
  min-height: 44px;
  padding: var(--lecp-space-3) var(--lecp-space-5);
  background: var(--lecp-surface);
  color: var(--lecp-text);
  font-family: inherit;
  font-size: var(--lecp-type-body);
  font-weight: 500;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background var(--lecp-motion-focus) var(--lecp-ease-focus),
    border-color var(--lecp-motion-focus) var(--lecp-ease-focus),
    transform var(--lecp-motion-activate) var(--lecp-ease-focus);
}

.lecp-btn:hover {
  background: var(--lecp-surface-hover);
}

.lecp-btn:active {
  transform: scale(0.97);
}

.lecp-btn:focus-visible {
  border-color: var(--lecp-accent);
  outline: none;
}

.lecp-btn:disabled,
.lecp-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.lecp-btn--primary {
  background: var(--lecp-accent);
  color: var(--lecp-on-accent);
}

.lecp-btn--primary:hover {
  background: var(--lecp-accent-hover);
}

.lecp-btn--ghost {
  background: transparent;
  border-color: var(--lecp-line);
}

.lecp-btn--ghost:hover {
  background: var(--lecp-surface);
}

.lecp-btn--danger {
  background: var(--lecp-error);
  color: #ffffff;
}

.lecp-btn--sm {
  min-height: 36px;
  padding: var(--lecp-space-2) var(--lecp-space-4);
  font-size: var(--lecp-type-meta);
}

.lecp-btn--loading {
  cursor: progress;
  color: transparent;
  position: relative;
}

.lecp-btn--loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: var(--lecp-text);
  animation: lecp-spin 700ms linear infinite;
}

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

/* ==========================================================================
   9. Form
   ========================================================================== */

.lecp-field {
  display: flex;
  flex-direction: column;
  gap: var(--lecp-space-2);
  margin-bottom: var(--lecp-space-5);
}

.lecp-label {
  font-size: var(--lecp-type-meta);
  font-weight: 500;
}

.lecp-input,
.lecp-select,
.lecp-textarea {
  font-family: inherit;
  font-size: var(--lecp-type-body);
  color: var(--lecp-text);
  background: var(--lecp-surface);
  border: 2px solid var(--lecp-line);
  padding: var(--lecp-space-3) var(--lecp-space-4);
  min-height: 44px;
  transition: border-color var(--lecp-motion-focus) var(--lecp-ease-focus);
}

.lecp-textarea {
  min-height: 120px;
  resize: vertical;
}

.lecp-input:focus-visible,
.lecp-select:focus-visible,
.lecp-textarea:focus-visible {
  border-color: var(--lecp-accent);
  outline: none;
}

.lecp-field-hint {
  font-size: var(--lecp-type-caption);
  color: var(--lecp-text-secondary);
}

.lecp-field--error .lecp-input,
.lecp-field--error .lecp-select,
.lecp-field--error .lecp-textarea {
  border-color: var(--lecp-error);
}

.lecp-field-error-text {
  font-size: var(--lecp-type-caption);
  color: var(--lecp-error);
  display: flex;
  align-items: center;
  gap: var(--lecp-space-2);
}

/* ==========================================================================
   10. Badge
   ========================================================================== */

.lecp-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--lecp-space-2);
  padding: var(--lecp-space-1) var(--lecp-space-3);
  font-size: var(--lecp-type-caption);
  font-weight: 500;
  background: var(--lecp-surface-raised);
  color: var(--lecp-text-secondary);
  border: 1px solid var(--lecp-line);
}

.lecp-badge--success {
  color: var(--lecp-success);
  border-color: var(--lecp-success);
}

.lecp-badge--warning {
  color: var(--lecp-warning);
  border-color: var(--lecp-warning);
}

.lecp-badge--error {
  color: var(--lecp-error);
  border-color: var(--lecp-error);
}

/* ==========================================================================
   11. Toast
   ========================================================================== */

.lecp-toast-region {
  position: fixed;
  top: var(--lecp-space-5);
  right: var(--lecp-space-5);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--lecp-space-3);
  max-width: 360px;
}

.lecp-toast {
  display: flex;
  align-items: flex-start;
  gap: var(--lecp-space-3);
  background: var(--lecp-surface-raised);
  border: 2px solid var(--lecp-line);
  padding: var(--lecp-space-4);
  box-shadow: var(--lecp-elevation-2);
  animation: lecp-toast-in var(--lecp-motion-page) var(--lecp-ease-enter);
}

.lecp-toast--leaving {
  animation: lecp-toast-out var(--lecp-motion-dismiss) var(--lecp-ease-exit) forwards;
}

.lecp-toast--important {
  border-color: var(--lecp-warning);
}

.lecp-toast--critical {
  border-color: var(--lecp-error);
}

@keyframes lecp-toast-in {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes lecp-toast-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(16px);
  }
}

/* ==========================================================================
   12. Utilities
   ========================================================================== */

.lecp-flex { display: flex; }
.lecp-flex-col { display: flex; flex-direction: column; }
.lecp-items-center { align-items: center; }
.lecp-justify-between { justify-content: space-between; }
.lecp-hidden { display: none; }

/* stylelint-disable */
.lecp-gap-1 { gap: var(--lecp-space-1); }
.lecp-gap-2 { gap: var(--lecp-space-2); }
.lecp-gap-3 { gap: var(--lecp-space-3); }
.lecp-gap-4 { gap: var(--lecp-space-4); }
.lecp-gap-5 { gap: var(--lecp-space-5); }

.lecp-mt-1 { margin-top: var(--lecp-space-1); }
.lecp-mt-2 { margin-top: var(--lecp-space-2); }
.lecp-mt-3 { margin-top: var(--lecp-space-3); }
.lecp-mt-4 { margin-top: var(--lecp-space-4); }
.lecp-mt-5 { margin-top: var(--lecp-space-5); }
.lecp-mt-6 { margin-top: var(--lecp-space-6); }
.lecp-mt-7 { margin-top: var(--lecp-space-7); }
.lecp-mt-8 { margin-top: var(--lecp-space-8); }

.lecp-mb-1 { margin-bottom: var(--lecp-space-1); }
.lecp-mb-2 { margin-bottom: var(--lecp-space-2); }
.lecp-mb-3 { margin-bottom: var(--lecp-space-3); }
.lecp-mb-4 { margin-bottom: var(--lecp-space-4); }
.lecp-mb-5 { margin-bottom: var(--lecp-space-5); }
.lecp-mb-6 { margin-bottom: var(--lecp-space-6); }
.lecp-mb-7 { margin-bottom: var(--lecp-space-7); }
.lecp-mb-8 { margin-bottom: var(--lecp-space-8); }
/* stylelint-enable */

.lecp-text-secondary { color: var(--lecp-text-secondary); }
.lecp-text-center { text-align: center; }

@media (max-width: 719px) {
  .lecp-hidden-compact { display: none; }
}

@media (min-width: 720px) {
  .lecp-hidden-standard-up { display: none; }
}