@layer components {
  /* Card */
  .card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-xl);
  }

  /* Button */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: var(--text-body);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s ease;
  }

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

  .btn:focus-visible {
    outline: 2px solid var(--color-accent-text);
    outline-offset: 2px;
  }

  /* ========================================
     Site Header
     ======================================== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding-block: var(--space-sm);
  }

  .wordmark {
    font-weight: 700;
    font-size: var(--text-h4);
    color: var(--color-heading);
    text-decoration: none;
  }

  .wordmark:hover {
    color: var(--color-accent-text);
  }

  /* ========================================
     Navigation
     ======================================== */
  .nav-list {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .nav-list a {
    text-decoration: none;
    color: var(--color-text);
    padding-block: var(--space-xs);
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
  }

  .nav-list a:hover {
    color: var(--color-accent-text);
  }

  .nav-list a[aria-current="page"] {
    color: var(--color-accent-text);
    border-bottom-color: var(--color-accent);
    font-weight: 600;
  }

  /* ========================================
     Hamburger (hidden on desktop)
     ======================================== */
  .hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
  }

  .hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-heading);
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  /* ========================================
     Mobile (max-width: 768px)
     ======================================== */
  @media (max-width: 768px) {
    .hamburger {
      display: flex;
    }

    .site-header > .container {
      flex-wrap: wrap;
    }

    #main-nav {
      display: none;
      width: 100%;
      order: 3;
    }

    #nav-toggle:checked ~ #main-nav {
      display: block;
    }

    .nav-list {
      flex-direction: column;
      padding-block: var(--space-md);
      gap: 0;
    }

    .nav-list a {
      display: block;
      padding: var(--space-sm) 0;
      border-bottom: 1px solid var(--color-border);
    }

    /* Hamburger to X animation */
    #nav-toggle:checked ~ .hamburger .hamburger-line:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
    }

    #nav-toggle:checked ~ .hamburger .hamburger-line:nth-child(2) {
      opacity: 0;
    }

    #nav-toggle:checked ~ .hamburger .hamburger-line:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -5px);
    }
  }

  /* ========================================
     Site Footer
     ======================================== */
  .site-footer {
    margin-top: auto;
  }

  .footer-content a {
    color: var(--color-accent-text);
    text-decoration: none;
  }

  .footer-content a:hover {
    text-decoration: underline;
  }

  /* ========================================
     Status Indicators
     ======================================== */
  .status-badge {
    font-size: var(--text-sm);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    font-weight: 600;
  }

  .status-active {
    background-color: var(--color-accent);
    color: white;
  }

  .status-coming-soon {
    background-color: var(--color-border);
    color: var(--color-text);
  }

  /* Venture card header layout */
  .venture-header {
    justify-content: space-between;
  }

  /* ========================================
     Form Styles (coming-soon for Phase 2,
     active in Phase 3)
     ======================================== */
  .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }

  .form-group label {
    font-weight: 600;
    font-size: var(--text-sm);
  }

  .form-group input,
  .form-group textarea {
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background-color: var(--color-surface);
    color: var(--color-text);
    font-size: var(--text-body);
  }

  .form-group input:disabled,
  .form-group textarea:disabled,
  .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  /* ========================================
     Active Form Styles (Phase 3)
     ======================================== */

  /* Honeypot: off-screen hiding (not display:none -- bots detect it) */
  .form-hp {
    position: absolute;
    left: -9999px;
    height: 0;
    overflow: hidden;
    opacity: 0;
  }

  /* Focus states for active form inputs */
  .form-group input:focus,
  .form-group textarea:focus {
    outline: 2px solid var(--color-accent-text);
    outline-offset: 2px;
    border-color: var(--color-accent);
  }

  /* Validation error messages */
  .form-error {
    color: #c0392b;
    font-size: var(--text-sm);
    min-height: 1.2em;
  }

  /* Invalid field visual state */
  .form-group input[aria-invalid="true"],
  .form-group textarea[aria-invalid="true"] {
    border-color: #c0392b;
    box-shadow: 0 0 0 1px #c0392b;
  }

  /* Submission feedback banner */
  .form-feedback {
    padding: var(--space-md);
    border-radius: 6px;
    font-weight: 600;
  }

  .form-feedback--success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
  }

  .form-feedback--error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
  }

  /* Required field indicator (asterisk) */
  .form-group label span[aria-hidden="true"] {
    color: #c0392b;
  }

  /* ========================================
     Dark Mode Overrides (Form)
     ======================================== */
  @media (prefers-color-scheme: dark) {
    .form-error {
      color: #e74c3c;
    }

    .form-group input[aria-invalid="true"],
    .form-group textarea[aria-invalid="true"] {
      border-color: #e74c3c;
      box-shadow: 0 0 0 1px #e74c3c;
    }

    .form-feedback--success {
      background-color: #1a3d2a;
      color: #8fd9a8;
      border-color: #2d6b45;
    }

    .form-feedback--error {
      background-color: #3d1a1a;
      color: #f5a5a5;
      border-color: #6b2d2d;
    }

    .form-group label span[aria-hidden="true"] {
      color: #e74c3c;
    }
  }
}