/* ============================================================
   BetaReads — Responsive Breakpoints
   ============================================================ */

/* ── Tablet (600–1024px) ───────────────────────────────────── */
@media (max-width: 1024px) {
  /* Reader: 2-column (nav + content), comment panel hidden by default */
  .reader-container {
    grid-template-columns: 240px 1fr;
  }

  .comment-panel {
    position: fixed;
    top: auto !important;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--md-surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: var(--elevation-4);
    z-index: 200; /* above FAB */
    max-height: 80vh;
    transform: translateY(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized), visibility 0s linear var(--motion-duration-medium);
    display: flex;
    flex-direction: column;
    height: 70vh;
    border-top: 1px solid var(--md-outline-variant);
    border-left: none;
  }

  .comment-panel.open {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized), visibility 0s linear 0s;
  }

  /* We use the comment-panel classes, bottom-sheet class is no longer strictly needed but kept if used elsewhere */
  .bottom-sheet {
    display: flex;
  }

  .reader-content {
    padding: var(--space-lg) var(--space-md);
  }

  /* Dashboard */
  .writing-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-md);
  }

  .container {
    padding: 0 var(--space-md);
  }
}

/* ── Mobile (<600px) ───────────────────────────────────────── */
@media (max-width: 600px) {
  /* Reader: Single column */
  .reader-container {
    grid-template-columns: 1fr;
  }

  /* Hide chapter nav, use drawer */
  .chapter-nav {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    z-index: var(--z-drawer);
    transform: translateX(-100%);
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized);
    height: 100vh;
    border-right: none;
    box-shadow: var(--elevation-4);
  }

  .chapter-nav.open {
    transform: translateX(0);
  }

  /* Show menu button */
  .reader-menu-btn {
    display: flex;
  }

  /* Reader content full width */
  .reader-content {
    padding: var(--space-md);
  }

  .reader-content-inner {
    max-width: 100%;
  }

  /* Topbar adjustments */
  .reader-topbar {
    padding: var(--space-sm) var(--space-md);
    flex-wrap: wrap;
  }

  .reader-topbar-credit {
    display: none;
  }

  /* Dashboard */
  .writing-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .container, .container-narrow {
    padding: 0 var(--space-md);
  }

  /* Login / Setup */
  .login-card, .setup-card {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
  }

  .login-brand h1 {
    font: var(--text-headline-large);
  }

  /* Modal */
  .modal {
    width: 95%;
    padding: var(--space-md);
    max-height: 85vh;
    border-radius: var(--radius-lg);
  }

  /* Navbar */
  .navbar {
    padding: var(--space-sm) var(--space-md);
  }

  .navbar-brand {
    font: var(--text-title-medium);
  }

  /* FAB */
  .fab {
    bottom: var(--space-md);
    right: var(--space-md);
  }

  /* Snackbar */
  .snackbar {
    min-width: unset;
    max-width: calc(100vw - 32px);
    margin: 0 var(--space-md);
  }

  /* General tap targets */
  .btn {
    min-height: 48px;
  }

  .btn-icon {
    min-height: 48px;
    min-width: 48px;
  }

  .tab {
    padding: 14px 16px;
  }

  .chapter-nav-item {
    padding: 14px var(--space-sm);
    min-height: 48px;
  }

  /* Stepper compact */
  .stepper-label {
    display: none;
  }

  /* Writing card */
  .writing-card {
    padding: var(--space-md);
  }

  /* Feedback table scroll */
  .feedback-table-wrapper {
    font-size: 13px;
  }

  .data-table th, .data-table td {
    padding: 8px 10px;
  }

  /* Bottom sheet adjustments */
  .bottom-sheet {
    max-height: 80vh;
  }

  /* Viewer identity screen */
  .viewer-identity-card {
    padding: var(--space-lg);
  }

  .viewer-identity-card h1 {
    font: var(--text-headline-medium);
  }

  /* Password gate */
  .password-gate-card {
    padding: var(--space-lg);
  }
}

/* ── Large Desktop (>1200px) ───────────────────────────────── */
@media (min-width: 1200px) {
  .reader-container {
    grid-template-columns: 280px 1fr 360px;
  }

  .reader-content {
    padding: var(--space-2xl) var(--space-2xl);
  }

  .writing-grid {
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  }
}