@layer components {
  /* ===================================================
     TGK Buttons – Refined Minimal Variant
     Version: 2.5  Tokenised + Consolidated (2026)
     Changes:
     • Updated to v2.5 token standard
     • Cleaner structure and comments
     • All hover states, glows, outlines, responsive behaviour, and mobile tweaks preserved 100%
     • No visual changes — just tighter and fully aligned with the rest of the system
     =================================================== */

  /* ✨ General Button Base */
  .btn {
    display: inline-block;
    padding: var(--btn-padding, 0.65rem 1.2rem);
    font-size: var(--type-button-size, var(--font-size-base, 1rem));
    font-family: var(--btn-font, var(--font-display));
    font-weight: var(--type-weight-semibold, 600);
    text-transform: uppercase;
    letter-spacing: var(--type-button-tracking, 0.05em);
    border-radius: var(--btn-radius, var(--radius-md));
    cursor: pointer;
    text-align: center;
    transition:
      color 0.25s ease,
      background 0.25s ease,
      border-color 0.25s ease,
      box-shadow 0.25s ease,
      transform 0.25s ease;
    color: var(--text-accent);
    background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--text-accent) 8%, transparent),
      transparent 70%
    );
    border: 2px solid var(--text-accent);
    box-shadow: 0 0 8px transparent;
    line-height: var(--type-ui-control-line, 1.1);
    min-height: 44px;
    position: relative;
    overflow: hidden;
  }

  a.btn,
  a.btn:visited {
    color: var(--text-accent);
  }

  .btn:hover {
    color: var(--bg-primary);
    background: var(--text-accent);
    border-color: var(--text-accent);
    box-shadow: 0 0 15px var(--text-accent);
    transform: translateY(-1px);
  }

  a.btn:hover,
  a.btn:focus-visible {
    color: var(--bg-primary);
  }

  /* Keep inline emphasis inside buttons consistent with button tone */
  .btn strong,
  .btn em,
  .btn span {
    color: inherit;
    font-family: inherit;
    font-weight: var(--font-ui, inherit);
    letter-spacing: inherit;
  }

  .btn:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--highlight) 74%, transparent);
    outline-offset: 3px;
  }

  /* 🟫 Wrapper for Centered or Grouped Buttons */
  .btn-wrap {
    text-align: center;
    margin: var(--space-md) auto;
  }

  /* ✅ Button Rows (used in discussion + share + CTA areas) */
  .btn-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-md);
  }

  .btn-row .btn-wrap {
    margin: 0; /* prevent double margins inside row */
  }

  /* 🔷 Fullwidth Variant */
  .btn.full {
    display: block;
    width: 100%;
    max-width: var(--btn-max-width, 320px);
    margin: var(--space-md) auto;
  }

  /* 🔶 Tier Buttons – glowing sigils */
  .tier-button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-top: 1rem;
  }

  .tier-button-group .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--accent-page);
    color: var(--accent-page);
    background: transparent;
    box-shadow: 0 0 12px transparent;
    transition: all 0.25s ease;
  }

  .tier-button-group .btn:hover {
    color: var(--bg-primary);
    background: var(--accent-page);
    box-shadow: 0 0 25px var(--accent-page);
    transform: translateY(-2px);
  }

  /* ✴️ CTA Button (bigger glow, etched outline) */
  .cta-button {
    border: 2px solid var(--text-accent);
    background: transparent;
    color: var(--text-accent);
    font-weight: var(--type-weight-bold, 700);
    letter-spacing: 0.08em;
    box-shadow: 0 0 15px transparent;
  }

  .cta-button:hover {
    background: var(--text-accent);
    color: var(--bg-primary);
    box-shadow: 0 0 25px var(--text-accent);
  }

  /* 🚫 Disabled */
  .btn:disabled,
  .btn.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: var(--text-muted);
    color: var(--text-muted);
    background: transparent;
    box-shadow: none;
  }

  /* ⬜ Small Variant */
  .btn-sm {
    padding: 0.35rem 0.9rem;
    font-size: var(--type-button-size, var(--font-size-sm));
    min-height: 36px;
  }

  /* ✨ Glow Hover Utility */
  .btn.glow-hover {
    box-shadow: 0 0 10px transparent;
  }

  .btn.glow-hover:hover {
    box-shadow: 0 0 20px var(--highlight);
  }

  /* 🧭 Manage Subscription */
  #manage-subscription {
    margin: var(--space-lg) auto;
    text-align: center;
    display: flex;
    justify-content: center;
  }

  /* Page action controls: bookmark + mark-complete */
  .page-actions-floating {
    position: fixed;
    right: var(--space-md);
    bottom: calc(var(--space-lg) * 2.2);
    z-index: 42;
  }

  .page-actions-floating[open] {
    z-index: 43;
  }

  .page-actions-floating > summary {
    list-style: none;
  }

  .page-actions-floating > summary::-webkit-details-marker {
    display: none;
  }

  .page-actions-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 999px;
    border: 1px solid var(--border-accent);
    background: color-mix(in srgb, var(--bg-surface) 90%, transparent);
    color: var(--text-accent);
    box-shadow: var(--shadow-soft);
    cursor: pointer;
    line-height: 1;
    font-size: 1.2rem;
    transition:
      transform 0.18s ease,
      box-shadow 0.2s ease,
      border-color 0.2s ease,
      background 0.2s ease,
      color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .page-actions-menu-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--text-accent);
    background: color-mix(in srgb, var(--text-accent) 14%, var(--bg-surface));
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--text-accent) 22%, transparent), var(--shadow-soft);
  }

  .page-actions-menu-toggle:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--highlight) 74%, transparent);
    outline-offset: 2px;
  }

  .page-actions-floating[open] .page-actions-menu-toggle {
    color: var(--bg-primary);
    border-color: var(--text-accent);
    background: var(--text-accent);
    box-shadow: 0 0 14px color-mix(in srgb, var(--text-accent) 52%, transparent);
  }

  .page-actions-menu-list {
    position: absolute;
    right: 0;
    bottom: calc(100% + var(--space-xs));
    display: grid;
    gap: var(--space-xs);
    align-items: center;
    justify-items: center;
  }

  .page-actions-floating > p {
    margin: 0;
  }

  .bookmark-tag,
  .mark-read-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid var(--border-accent);
    background: color-mix(in srgb, var(--bg-surface) 90%, transparent);
    color: var(--text-accent);
    box-shadow: var(--shadow-soft);
    cursor: pointer;
    line-height: 1;
    font-size: 1.12rem;
    transition:
      transform 0.18s ease,
      box-shadow 0.2s ease,
      border-color 0.2s ease,
      background 0.2s ease,
      color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .bookmark-tag:hover,
  .mark-read-btn:hover {
    transform: translateY(-1px);
    border-color: var(--text-accent);
    background: color-mix(in srgb, var(--text-accent) 14%, var(--bg-surface));
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--text-accent) 22%, transparent), var(--shadow-soft);
  }

  .bookmark-tag:focus-visible,
  .mark-read-btn:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--highlight) 74%, transparent);
    outline-offset: 2px;
  }

  .bookmark-tag.bookmarked,
  .mark-read-btn.is-complete {
    color: var(--bg-primary);
    border-color: var(--text-accent);
    background: var(--text-accent);
    box-shadow: 0 0 14px color-mix(in srgb, var(--text-accent) 52%, transparent);
  }

  .mark-read-btn:disabled,
  .bookmark-tag:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
  }

  /* ===================================================
     Responsive Adjustments
     =================================================== */

  @media (max-width: 768px) {
    .btn-row {
      flex-direction: column;
      gap: var(--space-sm);
    }

    .share-section .btn-row,
    .creative-prompt .btn-row,
    .reflection-prompt .btn-row,
    .discussion-prompt .btn-row {
      flex-direction: row;
      align-items: stretch;
      gap: var(--space-xs);
      margin-top: var(--space-sm);
    }

    .share-section .btn-wrap,
    .creative-prompt .btn-wrap,
    .reflection-prompt .btn-wrap,
    .discussion-prompt .btn-wrap {
      margin: 0;
    }

    .share-section .btn,
    .creative-prompt .btn,
    .reflection-prompt .btn,
    .discussion-prompt .btn {
      width: auto;
      max-width: 100%;
      white-space: normal;
    }

    .page-actions-floating {
      right: var(--space-sm);
      bottom: calc(var(--space-lg) * 2);
    }
  }

  @media (max-width: 900px) {
    .btn {
      padding: 0.6rem 1rem;
      font-size: 0.95rem;
      letter-spacing: 0.045em;
      min-height: 42px;
    }

    .tier-button-group .btn {
      padding: 0.8rem 1.2rem;
      font-size: 1rem;
    }
  }

  @media (max-width: 600px) {
    .btn,
    .btn.full {
      width: 100%;
      max-width: 100%;
    }

    .btn-row {
      width: 100%;
      gap: var(--space-xs);
    }

    .btn-wrap {
      width: 100%;
      margin: var(--space-sm) auto;
    }

    .share-section .btn-row,
    .creative-prompt .btn-row,
    .reflection-prompt .btn-row,
    .discussion-prompt .btn-row {
      width: 100%;
      justify-content: center;
      gap: var(--space-xs);
    }

    .share-section .btn-wrap,
    .creative-prompt .btn-wrap,
    .reflection-prompt .btn-wrap,
    .discussion-prompt .btn-wrap {
      width: auto;
      max-width: 100%;
      margin: 0;
    }

    .share-section .btn,
    .share-section .btn.full,
    .creative-prompt .btn,
    .creative-prompt .btn.full,
    .reflection-prompt .btn,
    .reflection-prompt .btn.full,
    .discussion-prompt .btn,
    .discussion-prompt .btn.full {
      width: auto;
      max-width: 100%;
      padding: 0.6rem 0.9rem;
    }
  }

  @media (max-width: 390px) {
    .btn {
      font-size: 0.9rem;
      letter-spacing: 0.035em;
      min-height: 40px;
      padding: 0.55rem 0.85rem;
    }

    .tier-button-group {
      gap: var(--space-sm);
    }

    .tier-button-group .btn {
      padding: 0.72rem 1rem;
      font-size: 0.94rem;
    }
  }

  /* Android 360-class */
  @media (max-width: 370px) {
    .btn {
      font-size: 0.88rem;
      letter-spacing: 0.03em;
      padding: 0.52rem 0.8rem;
      min-height: 40px;
    }

    .tier-button-group .btn {
      font-size: 0.92rem;
      padding: 0.68rem 0.92rem;
    }
  }

  /* iPhone 375-class */
  @media (min-width: 371px) and (max-width: 390px) {
    .btn {
      font-size: 0.91rem;
      letter-spacing: 0.034em;
      padding: 0.56rem 0.88rem;
    }
  }

  /* Landscape phones: reduce button density */
  @media (max-height: 500px) and (orientation: landscape) {
    .btn {
      min-height: 36px;
      padding: 0.45rem 0.75rem;
      font-size: 0.86rem;
      letter-spacing: 0.03em;
    }

    .btn-row,
    .tier-button-group {
      gap: var(--space-xs);
      margin-top: var(--space-sm);
    }
  }
  
}