:root {
      --bg: #F6F2EA;
      --bg-rgb: 246, 242, 234;
      --text: #1F242C;
      --text-rgb: 31, 36, 44;
      --muted: rgba(var(--text-rgb), 0.82);
      --muted-2: rgba(var(--text-rgb), 0.66);
      --accent: #B4232A;
      --accent-rgb: 180, 35, 42;
      --panel: rgba(255, 252, 246, 0.94);
      --panel-2: rgba(255, 250, 242, 0.91);
      --surface-soft: rgba(252, 247, 239, 0.9);
      --surface-strong: rgba(255, 254, 250, 0.97);
      --accent-soft: rgba(var(--accent-rgb), 0.08);
      --border: rgba(73, 54, 49, 0.22);
      --border-strong: rgba(73, 54, 49, 0.34);
      --shadow: 0 14px 34px rgba(23, 26, 32, 0.08);
      --glow-soft: 0 0 0 1px rgba(var(--accent-rgb), 0.08), 0 0 12px rgba(var(--accent-rgb), 0.1);
      --blood-glow-hover: 0 0 0 1px rgba(var(--accent-rgb), 0.22), 0 0 16px rgba(var(--accent-rgb), 0.14);
      --focus-ring: 0 0 0 3px rgba(var(--accent-rgb), 0.28);
      --control-disabled-bg: rgba(var(--text-rgb), 0.08);
      --control-disabled-text: rgba(var(--text-rgb), 0.5);
      --radius: 2rem;
      --max: 100%;
    }

    :root[data-theme="dark"] {
      --bg: #14181F;
      --bg-rgb: 20, 24, 31;
      --text: #E8EDF5;
      --text-rgb: 232, 237, 245;
      --muted: rgba(var(--text-rgb), 0.83);
      --muted-2: rgba(var(--text-rgb), 0.66);
      --panel: rgba(24, 29, 37, 0.93);
      --panel-2: rgba(22, 27, 35, 0.9);
      --surface-soft: rgba(24, 30, 39, 0.88);
      --surface-strong: rgba(27, 33, 43, 0.96);
      --border: rgba(169, 179, 199, 0.24);
      --border-strong: rgba(169, 179, 199, 0.38);
      --shadow: 0 16px 36px rgba(5, 7, 10, 0.45);
      --glow-soft: 0 0 0 1px rgba(var(--accent-rgb), 0.16), 0 0 14px rgba(var(--accent-rgb), 0.14);
      --blood-glow-hover: 0 0 0 1px rgba(var(--accent-rgb), 0.34), 0 0 18px rgba(var(--accent-rgb), 0.22);
      --focus-ring: 0 0 0 3px rgba(var(--accent-rgb), 0.38);
      --control-disabled-bg: rgba(var(--text-rgb), 0.08);
      --control-disabled-text: rgba(var(--text-rgb), 0.45);
    }

    * { box-sizing: border-box; }

    html, body {
      margin: 0;
      min-height: 100%;
      background:
        radial-gradient(circle at top, rgba(var(--accent-rgb),0.05), transparent 36%),
        radial-gradient(circle at bottom right, rgba(var(--accent-rgb),0.03), transparent 30%),
        var(--bg);
      color: var(--text);
      font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
      line-height: 1.7;
    }

    html,
    body,
    #app {
      width: 100%;
      min-height: 100%;
    }

    body {
      padding: 2.2rem clamp(0.65rem, 1.6vw, 1.5rem) 3.5rem;
    }

    .shell {
      width: 100%;
      max-width: var(--max);
      margin: 0 auto;
    }

    .app-top-controls {
      display: flex;
      justify-content: center;
      margin-bottom: 1.2rem;
    }

    .theme-toggle {
      position: fixed;
      top: 1rem;
      right: 1rem;
      z-index: 1300;
      border: 1px solid var(--border-strong);
      border-radius: 999px;
      background: var(--surface-strong);
      color: var(--text);
      padding: 0.45rem 0.85rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-size: 0.8rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      cursor: pointer;
      box-shadow: var(--shadow), var(--glow-soft);
    }

    button,
    input,
    select,
    textarea {
      transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
    }

    :is(button, [role="button"], input, select, textarea):focus-visible {
      outline: none;
      box-shadow: var(--focus-ring);
      border-color: var(--border-strong);
    }

    .hero-title {
      text-align: center;
      font-size: clamp(3.8rem, 9vw, 7rem);
      letter-spacing: 0.34em;
      line-height: 0.95;
      margin: 0 0 1.4rem;
      color: var(--text);
      text-transform: none;
      font-weight: 700;
      text-shadow: 0 0 24px rgba(var(--accent-rgb),0.08);
    }

    .hero-subtitle {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.35rem;
      margin: 0 0 1.4rem;
      text-align: center;
    }

    .hero-subtitle-line {
      color: var(--text);
      line-height: 1.1;
    }

    .hero-subtitle-line--arabic {
      direction: rtl;
      font-size: clamp(2rem, 4.2vw, 3.1rem);
      font-family: "Noto Naskh Arabic", "Amiri", "Times New Roman", serif;
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    .hero-subtitle-line--english {
      direction: ltr;
      font-size: clamp(1.15rem, 2vw, 1.65rem);
      font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-weight: 500;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: var(--muted);
    }

    .section-block {
      margin-bottom: 4.5rem;
    }

    .section-kicker {
      text-align: center;
      letter-spacing: 0.08em;
      font-size: clamp(1.55rem, 2.8vw, 2.15rem);
      color: rgba(var(--accent-rgb),0.72);
      margin-bottom: 0.55rem;
      font-weight: 600;
      line-height: 1.2;
    }

    .section-title {
      text-align: center;
      font-size: clamp(2rem, 4vw, 3.35rem);
      margin: 0 0 2.5rem;
      color: var(--text);
      font-weight: 700;
    }

    .divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb),0.42), transparent);
      margin: 4.5rem 0;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
      gap: clamp(0.75rem, 1.2vw, 1.25rem);
      width: 100%;
    }

    .card,
    .chapter-card,
    .back-btn {
      border: 1px solid var(--border);
      background: var(--panel);
      box-shadow: var(--shadow);
      backdrop-filter: blur(10px);
    }

    .card,
    .chapter-card {
      border-radius: var(--radius);
      padding: clamp(1.5rem, 2.8vw, 2.8rem) clamp(1rem, 2.2vw, 2.4rem);
      min-height: clamp(160px, 22vw, 220px);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
      text-align: center;
    }

    .card:hover,
    .chapter-card:hover,
    .back-btn:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      background: var(--surface-strong);
      box-shadow: var(--shadow), var(--blood-glow-hover);
    }

    .orig {
      font-size: clamp(2.25rem, 3.4vw, 3.45rem);
      line-height: 1.2;
      color: var(--text);
      letter-spacing: 0.03em;
      max-inline-size: 100%;
      overflow-wrap: normal;
      word-break: normal;
      text-wrap: balance;
    }

    .title-he {
      direction: rtl;
      text-align: center;
      font-weight: 700;
      font-family: "Noto Serif Hebrew", "David", "Times New Roman", serif;
    }

    .title-ar {
      direction: rtl;
      text-align: center;
      margin-top: 0.2rem;
      font-family: "Noto Naskh Arabic", "Amiri", "Times New Roman", serif;
    }

    .title-en {
      direction: ltr;
      text-align: center;
      margin-top: 0.2rem;
      font-size: clamp(0.85rem, 1.1vw, 1rem);
      color: var(--muted);
      font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      letter-spacing: 0.01em;
      line-height: 1.35;
    }

    .orig--nt {
      font-size: clamp(1.95rem, 3vw, 3rem);
      line-height: 1.1;
    }

    .eng {
      margin-top: 0.5rem;
      font-size: 1rem;
      color: var(--muted);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .view {
      max-width: 1400px;
      margin: 0 auto;
    }

    .back-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.55rem;
      border-radius: 999px;
      color: var(--accent);
      background: var(--surface-soft);
      padding: 0.8rem 1.25rem;
      font-size: 0.82rem;
      letter-spacing: 0.22em;
      text-transform: uppercase;
      cursor: pointer;
      margin-bottom: 2.25rem;
      user-select: none;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .book-header {
      text-align: center;
      margin-bottom: 2.75rem;
    }

    .book-header .orig {
      font-size: clamp(3rem, 5vw, 4.8rem);
    }

    .book-header .eng {
      font-size: 1.1rem;
    }

    .chapter-card {
      min-height: 185px;
      padding: 2.5rem 1.5rem;
      align-items: center;
      justify-content: center;
    }

    .chapter-orig {
      font-size: clamp(2rem, 3.2vw, 3.3rem);
      color: var(--text);
      line-height: 1.25;
    }

    .placeholder-panel,
    .verses-panel {
      max-width: 1020px;
      margin: 0 auto;
      border-radius: 2rem;
      padding: 2.8rem;
      background: var(--panel-2);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }

    .placeholder-kicker {
      color: rgba(var(--accent-rgb),0.72);
      text-transform: uppercase;
      letter-spacing: 0.3em;
      font-size: 0.78rem;
      margin-bottom: 1rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .placeholder-panel p {
      margin: 0.35rem 0;
      color: var(--muted);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-size: 1.05rem;
    }

    .placeholder-panel p:last-child {
      color: var(--muted-2);
    }

    .verse-row {
      padding: 1.15rem 0;
      border-bottom: 1px solid rgba(var(--accent-rgb),0.16);
    }

    .verse-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .verse-label {
      margin-bottom: 0.6rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      display: inline-flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 0.2rem;
    }

    .verse-label-orig {
      color: rgba(var(--accent-rgb),0.92);
      font-size: 1rem;
      letter-spacing: 0.02em;
      direction: rtl;
      text-align: right;
      font-weight: 700;
    }

    .verse-label-en {
      color: rgba(var(--accent-rgb),0.76);
      font-size: 0.78rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }

    .verse-hebrew {
      direction: rtl;
      text-align: right;
      line-height: 1.95;
      font-size: clamp(1.4rem, 2.8vw, 1.8rem);
      color: var(--text);
      margin: 0 0 0.65rem;
    }

    .verse-eng {
      color: var(--muted);
      font-size: clamp(1rem, 2vw, 1.2rem);
      line-height: 1.75;
      font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      margin: 0;
    }

    .language-mode-toggle {
      display: inline-flex;
      gap: 0.35rem;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--surface-soft);
      padding: 0.3rem;
      box-shadow: var(--shadow);
    }

    .language-mode-btn {
      border: 1px solid transparent;
      border-radius: 999px;
      background: transparent;
      color: var(--muted);
      padding: 0.55rem 1rem;
      font-size: 0.85rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      cursor: pointer;
    }

    .language-mode-btn--active {
      color: var(--text);
      border-color: var(--border-strong);
      background: rgba(var(--accent-rgb), 0.13);
      box-shadow: var(--glow-soft);
    }

    @media (max-width: 700px) {
      body { padding: 1.2rem 0.6rem 2.5rem; }
      .grid { grid-template-columns: 1fr; gap: 0.75rem; }
      .card, .chapter-card { min-height: 150px; padding: 1.55rem 1rem; }
      .placeholder-panel, .verses-panel { padding: 1.6rem; }
      .hero-title { letter-spacing: 0.18em; }
      .search-form { grid-template-columns: 1fr; }
      .search-btn { width: 100%; }
      .search-help-row { justify-content: flex-start; }
    }



    .hero-search-wrap {
      max-width: 980px;
      margin: 0 auto 3.75rem;
      padding-bottom: 2.2rem;
      border-bottom: 1px solid rgba(var(--accent-rgb),0.25);
    }

    .search-form {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 0.8rem;
      align-items: end;
    }

    .search-label {
      grid-column: 1 / -1;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--muted);
      letter-spacing: 0.06em;
      font-size: 1.05rem;
    }

    .search-input {
      border-radius: 1rem;
      border: 1px solid var(--border);
      background: var(--surface-strong);
      color: var(--text);
      font-size: clamp(1.05rem, 2.2vw, 1.5rem);
      padding: 1rem 1.15rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-btn {
      border-radius: 999px;
      border: 1px solid var(--border-strong);
      background: rgba(var(--accent-rgb),0.12);
      color: var(--accent);
      padding: 0.95rem 1.5rem;
      cursor: pointer;
      font-size: 0.95rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-btn:hover,
    .search-print-btn:hover,
    .reader-entry-btn:hover,
    .reader-language-btn:hover,
    .reader-topbar-btn:hover,
    .reader-nav-btn:hover,
    .reader-save-btn:hover,
    .reader-side-btn:hover,
    .reader-bookmark-item:hover,
    .auth-btn:hover,
    .auth-submit-btn:hover {
      border-color: var(--border-strong);
      box-shadow: var(--blood-glow-hover);
    }

    .search-btn:active,
    .search-print-btn:active,
    .reader-entry-btn:active,
    .reader-language-btn:active,
    .reader-topbar-btn:active,
    .reader-nav-btn:active,
    .reader-save-btn:active,
    .reader-side-btn:active,
    .reader-bookmark-item:active,
    .auth-btn:active,
    .auth-submit-btn:active {
      transform: translateY(1px);
    }

        .search-inline-error {
      margin: 0.9rem 0 0;
      color: rgba(var(--accent-rgb), 0.78);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-help-row {
      display: flex;
      justify-content: flex-end;
      margin: 0 0 0.6rem;
    }

    .search-help-btn {
      border: 1px solid var(--border);
      background: var(--surface-soft);
      color: var(--muted);
      border-radius: 999px;
      padding: 0.35rem 0.75rem;
      font-size: 0.78rem;
      letter-spacing: 0.03em;
      cursor: pointer;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-help-panel {
      border: 1px solid var(--border);
      border-radius: 0.85rem;
      background: var(--surface-soft);
      padding: 0.75rem 0.9rem;
      margin: 0 0 0.85rem;
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.5;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-help-panel p {
      margin: 0 0 0.45rem;
    }

    .search-help-panel ul {
      margin: 0;
      padding-left: 1.1rem;
    }

    .search-help-panel code {
      color: var(--text);
      font-size: 0.84rem;
    }

    .search-input-wrap {
      position: relative;
      min-width: 0;
    }

    .search-input {
      width: 100%;
    }

    .search-autocomplete {
      position: absolute;
      left: 0;
      right: 0;
      top: calc(100% + 0.35rem);
      background: var(--surface-strong);
      border: 1px solid var(--border);
      border-radius: 0.75rem;
      overflow: hidden;
      z-index: 25;
      max-height: min(42vh, 280px);
      overflow-y: auto;
      box-shadow: 0 14px 30px rgba(var(--accent-rgb), 0.24);
    }

    .search-autocomplete-item {
      width: 100%;
      border: 0;
      background: transparent;
      color: var(--text);
      text-align: left;
      padding: 0.62rem 0.8rem;
      font-size: 0.95rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      cursor: pointer;
    }

    .search-autocomplete-item:hover,
    .search-autocomplete-item--active {
      background: rgba(var(--accent-rgb),0.14);
      color: var(--text);
    }

    .search-controls {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin: 0 0 1.25rem;
      flex-wrap: wrap;
    }

    .search-mode-switch {
      display: inline-flex;
      gap: 0.4rem;
      margin: 0;
      padding: 0.35rem;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--surface-soft);
    }

    .search-print-btn {
      border-radius: 999px;
      border: 1px solid var(--border-strong);
      background: rgba(var(--accent-rgb),0.12);
      color: var(--accent);
      padding: 0.6rem 1rem;
      cursor: pointer;
      font-size: 0.82rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-mode-btn {
      border: 1px solid transparent;
      background: transparent;
      color: var(--muted);
      border-radius: 999px;
      padding: 0.55rem 0.9rem;
      cursor: pointer;
      font-size: 0.82rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-mode-btn--active {
      color: var(--text);
      border-color: var(--border-strong);
      background: rgba(var(--accent-rgb),0.12);
    }

    .search-header {
      margin-bottom: 2.1rem;
    }

    .search-group {
      margin-bottom: 2rem;
    }

    .search-group-title {
      margin: 0 0 1rem;
      font-size: clamp(1.2rem, 2.3vw, 1.7rem);
      color: var(--accent);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .search-group-grid {
      display: grid;
      gap: 0.85rem;
    }

    .search-verse-card {
      border-radius: 1rem;
      border: 1px solid var(--border);
      background: var(--panel-2);
      padding: 1rem 1.2rem;
      box-shadow: var(--shadow);
    }


    .search-passages-only {
      margin: 0;
      font-size: clamp(1.05rem, 2.1vw, 1.35rem);
      line-height: 1.85;
    }

    .search-verse-run {
      display: inline;
    }


    .search-verse-run--missing-asv,
    .search-verse-run--missing-lsg {
      color: var(--muted);
      font-style: italic;
    }

    .search-verse-run sup {
      font-size: 0.7em;
      vertical-align: super;
      opacity: 0.8;
      margin-inline-end: 0.2rem;
    }

    .search-verse-card--single-language {
      padding: 1.15rem 1.3rem;
    }


    @media print {
      body {
        background: #fff;
        color: #000;
        padding: 0;
      }

      .back-btn,
      .search-controls {
        display: none !important;
      }

      .search-verse-card,
      .placeholder-panel {
        box-shadow: none;
        border-color: #ccc;
        background: #fff;
      }

      .search-group-title,
      .verse-label,
      .verse-hebrew,
      .verse-eng,
      .placeholder-panel p,
      .orig,
      .eng {
        color: #000 !important;
      }

      .search-verse-run--missing-asv,
      .search-verse-run--missing-lsg {
        display: none !important;
      }

      .search-results--mode-asv .search-group--asv-empty,
      .search-results--mode-lsg .search-group--lsg-empty {
        display: none !important;
      }
    }

    .auth-controls {
      max-width: 980px;
      margin: 0 auto 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      align-items: center;
    }

    .auth-btn,
    .auth-submit-btn {
      border: 1px solid var(--border-strong);
      background: var(--surface-strong);
      color: var(--text);
      border-radius: 999px;
      padding: 0.55rem 1rem;
      cursor: pointer;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .auth-btn--secondary {
      background: var(--accent-soft);
    }

    .auth-btn--ghost {
      padding: 0.4rem 0.8rem;
    }

    .auth-user-row {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--surface-strong);
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 0.35rem 0.35rem 0.35rem 0.8rem;
    }

    .auth-user-email {
      font-size: 0.85rem;
      color: var(--muted);
      max-width: 220px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .auth-status-message {
      margin: 0;
      font-size: 0.8rem;
      color: var(--muted);
      background: var(--surface-soft);
      border: 1px solid var(--border);
      border-radius: 0.75rem;
      padding: 0.35rem 0.6rem;
    }

    .auth-modal-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(var(--bg-rgb), 0.72);
      z-index: 1200;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }

    .auth-modal {
      width: min(460px, 100%);
      border-radius: 1.25rem;
      border: 1px solid var(--border-strong);
      background: var(--surface-strong);
      box-shadow: var(--shadow);
      padding: 1.35rem;
    }

    .auth-modal h2 {
      margin: 0;
      font-size: 1.5rem;
    }

    .auth-modal-subtitle {
      margin: 0.4rem 0 1rem;
      color: var(--muted);
    }

    .auth-form {
      display: grid;
      gap: 0.6rem;
    }

    .auth-form input {
      border: 1px solid var(--border);
      background: var(--surface-strong);
      color: var(--text);
      border-radius: 0.6rem;
      padding: 0.65rem 0.7rem;
      font-size: 1rem;
    }

    .auth-error {
      margin: 0;
      color: rgba(var(--accent-rgb), 0.82);
      font-size: 0.88rem;
    }

    .reader-entry-btn {
      display: block;
      margin: 0 auto 2rem;
      border: 1px solid var(--border-strong);
      background: rgba(var(--accent-rgb), 0.12);
      color: var(--text);
      border-radius: 999px;
      padding: 0.75rem 1.4rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      font-weight: 600;
      cursor: pointer;
    }

    .reader-selection-card,
    .reader-notes-panel,
    .reader-page {
      border: 1px solid var(--border);
      border-radius: 1.4rem;
      background: var(--surface-soft);
      box-shadow: var(--shadow);
    }

    .reader-selection-card {
      max-width: 640px;
      margin: 0 auto;
      text-align: center;
      padding: 2rem 1.4rem;
    }

    .reader-selection-card h2 { margin: 0; }
    .reader-selection-card p { color: var(--muted); }
    .reader-selection-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
    .reader-selection-actions--single { grid-template-columns: 1fr; }
    .reader-selection-card--wide { max-width: 760px; }
    .reader-selection-admin {
      margin-top: 0.8rem;
      display: grid;
      grid-template-columns: 1fr;
      gap: 0.8rem;
    }
    .reader-language-btn,
    .reader-topbar-btn,
    .reader-nav-btn,
    .reader-save-btn {
      border: 1px solid var(--border-strong);
      background: rgba(var(--accent-rgb), 0.08);
      color: var(--text);
      border-radius: 0.9rem;
      padding: 0.8rem 1rem;
      font-weight: 600;
      cursor: pointer;
    }
    .reader-language-btn--admin {
      background: rgba(var(--accent-rgb), 0.16);
    }

    .reader-mode-shell {
      max-width: 100%;
      width: 100%;
      margin-inline: auto;
      padding-inline: clamp(0.45rem, 1.6vw, 1.1rem);
    }

    .reader-mode-root {
      position: fixed;
      inset: 0;
      width: 100%;
      height: 100dvh;
      height: 100svh;
      z-index: 40;
      overflow: hidden;
      background:
        radial-gradient(circle at top, rgba(var(--accent-rgb),0.05), transparent 36%),
        radial-gradient(circle at bottom right, rgba(var(--accent-rgb),0.03), transparent 30%),
        var(--bg);
    }

    .reader-mode-shell--fullscreen {
      max-width: none;
      margin: 0;
      height: 100%;
      padding: max(env(safe-area-inset-top), 0.35rem) max(env(safe-area-inset-right), 0.45rem) max(env(safe-area-inset-bottom), 0.5rem) max(env(safe-area-inset-left), 0.45rem);
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
    }

    .reader-mode-shell--immersive {
      max-width: none;
      width: 100%;
      min-height: 100%;
      margin: 0;
      padding: 0;
    }

    .reader-topbar {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 0.8rem;
    }

    .reader-heading {
      text-align: center;
      font-size: 1.1rem;
      letter-spacing: 0.05em;
      color: var(--accent);
    }

    .reader-page-shell {
      display: grid;
      grid-template-columns: minmax(2rem, 5.5%) 1fr minmax(2rem, 5.5%);
      align-items: stretch;
      gap: 0.3rem;
      margin-bottom: 0.5rem;
      flex: 1;
      min-height: 0;
    }

    .reader-page-viewport {
      overflow: hidden;
      border-radius: 1.2rem;
      border: 1px solid var(--border);
      background: var(--surface-strong);
      box-shadow: var(--shadow);
      height: 100%;
      max-height: 100%;
      min-height: 0;
      touch-action: pan-y;
      position: relative;
    }

    .reader-page-stage {
      width: 100%;
      height: 100%;
      transform: translateX(0);
      will-change: transform;
      position: relative;
      overflow: hidden;
    }

    .reader-page-stage--animating {
      transition: transform 180ms ease;
    }

    .reader-page {
      padding: 1rem clamp(0.8rem, 2.2vw, 1.4rem);
      margin: 0;
      width: 100%;
      height: 100%;
      overflow: hidden;
      box-sizing: border-box;
      border: 0;
      border-radius: 0;
      background: transparent;
      box-shadow: none;
      position: absolute;
      inset: 0;
      display: flex;
      justify-content: center;
      align-items: stretch;
      box-sizing: border-box;
    }


    .reader-page--measure {
      position: static;
      inset: auto;
      display: block;
      width: 100%;
      margin: 0;
      height: 100%;
      overflow: hidden;
      padding: 1rem clamp(0.8rem, 2.2vw, 1.4rem);
    }

    .reader-page--prev {
      transform: translateX(-100%);
      z-index: 1;
      opacity: 1;
    }

    .reader-page--current {
      transform: translateX(0);
      z-index: 3;
      background: var(--surface-strong);
    }

    .reader-page--next {
      transform: translateX(100%);
      z-index: 2;
      opacity: 1;
      background: var(--surface-strong);
    }

    .reader-page-stage--drag-next .reader-page--next {
      opacity: 1;
    }

    .reader-page-stage--drag-prev .reader-page--prev {
      opacity: 1;
    }

    .reader-page-content {
      width: min(100%, 42rem);
      margin: 0 auto;
      height: 100%;
      overflow: hidden;
      box-sizing: border-box;
    }

    .reader-actions-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 0.45rem;
      margin-bottom: 0.45rem;
      min-height: 2.3rem;
    }
    .reader-actions-row--compact {
      justify-content: center;
      margin: 1rem 0 0.8rem;
    }

    .reader-side-btn {
      border: 1px solid var(--border-strong);
      background: var(--surface-strong);
      color: var(--text);
      border-radius: 999px;
      padding: 0.5rem 0.7rem;
      font-weight: 600;
      cursor: pointer;
    }

    .reader-side-btn--ghost {
      font-weight: 500;
      opacity: 0.9;
    }

    .reader-page--arabic {
      direction: rtl;
      text-align: right;
    }

    .reader-verse {
      line-height: 1.9;
      font-size: clamp(1.03rem, 1rem + 0.35vw, 1.16rem);
      margin: 0 0 0.9rem;
      color: var(--text);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .reader-verse sup {
      color: var(--accent);
      margin-inline-end: 0.35rem;
      font-size: 0.72rem;
    }

    .reader-nav-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.6rem;
      margin-bottom: 0.8rem;
    }

    .reader-page-shell--mobile-no-nav {
      grid-template-columns: 1fr;
    }

    .reader-nav-row--mobile-no-nav {
      display: none;
    }

    .reader-click-zone {
      border: 1px solid transparent;
      background: transparent;
      border-radius: 1rem;
      cursor: pointer;
    }

    .reader-click-zone--left {
      background: linear-gradient(to right, rgba(var(--accent-rgb), 0.12), transparent);
    }

    .reader-click-zone--right {
      background: linear-gradient(to left, rgba(var(--accent-rgb), 0.12), transparent);
    }

    .reader-panel {
      border: 1px solid var(--border);
      border-radius: 1rem;
      background: var(--surface-soft);
      padding: 1rem;
      display: grid;
      gap: 0.55rem;
    }

    .reader-panel select {
      width: 100%;
      border-radius: 0.7rem;
      border: 1px solid var(--border);
      background: var(--surface-strong);
      color: var(--text);
      padding: 0.6rem;
    }

    .reader-bookmark-item {
      text-align: left;
      border: 1px solid var(--border-strong);
      background: rgba(var(--accent-rgb), 0.08);
      color: var(--text);
      border-radius: 0.7rem;
      padding: 0.7rem 0.8rem;
      cursor: pointer;
    }

    .reader-bookmark-empty {
      margin: 0;
      color: var(--muted);
    }

    .reader-nav-btn[disabled] {
      opacity: 1;
      background: var(--control-disabled-bg);
      color: var(--control-disabled-text);
      border-color: var(--border);
      cursor: not-allowed;
    }

    :is(.search-btn, .search-print-btn, .reader-entry-btn, .reader-language-btn, .reader-topbar-btn, .reader-nav-btn, .reader-save-btn, .reader-side-btn, .reader-bookmark-item, .auth-btn, .auth-submit-btn)[disabled] {
      opacity: 1;
      background: var(--control-disabled-bg);
      color: var(--control-disabled-text);
      border-color: var(--border);
      box-shadow: none;
      transform: none;
      cursor: not-allowed;
    }
    .reader-notes-panel {
      padding: 1rem;
    }

    .reader-notes-panel label {
      display: block;
      margin-bottom: 0.45rem;
      color: var(--muted);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .reader-notes-panel textarea {
      width: 100%;
      border-radius: 0.8rem;
      border: 1px solid var(--border);
      background: var(--surface-strong);
      color: var(--text);
      padding: 0.7rem;
      resize: vertical;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .reader-notes-actions {
      display: flex;
      align-items: center;
      gap: 0.7rem;
      margin-top: 0.7rem;
    }


    .reader-save-status {
      margin: 0;
      color: var(--accent);
      font-size: 0.9rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    @media (max-width: 700px) {
      body:has(.reader-mode-root) {
        padding: 0;
      }

      html:has(.reader-mode-root),
      body:has(.reader-mode-root),
      body:has(.reader-mode-root) #app {
        min-height: 100dvh;
        min-height: 100svh;
        overflow: hidden;
      }

      .reader-topbar {
        grid-template-columns: auto 1fr auto;
        gap: 0.35rem;
        margin-bottom: 0.3rem;
      }

      .reader-mode-shell--immersive .reader-topbar,
            .reader-mode-shell--immersive .reader-nav-row {
        display: grid;
      }

      .reader-heading {
        font-size: 0.88rem;
      }

      .reader-topbar-btn {
        padding: 0.45rem 0.55rem;
        font-size: 0.78rem;
      }

      .reader-actions-row {
        margin-bottom: 0.35rem;
        gap: 0.35rem;
      }
      .reader-page-shell {
        grid-template-columns: 1fr;
        margin: 0;
      }
      .reader-click-zone {
        display: none;
      }
      .reader-page-viewport {
        height: 100%;
        min-height: 0;
        max-height: 100%;
        border-radius: 0.65rem;
        border-inline: 0;
      }
      .reader-page {
        padding: 0.9rem 0.8rem 1rem;
      }
      .reader-page-content {
        width: 100%;
      }
      .reader-nav-row {
        display: none;
      }
      .reader-side-btn,
      .reader-topbar-btn {
        padding: 0.45rem 0.65rem;
        font-size: 0.82rem;
      }
    }

    .startup-diagnostics-banner {
      max-width: 1020px;
      margin: 0 auto 1.25rem;
      border-radius: 1rem;
      padding: 0.9rem 1rem;
      border: 1px solid rgba(var(--accent-rgb), 0.38);
      background: var(--surface-soft);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.75rem;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    .startup-diagnostics-banner p {
      margin: 0;
      color: var(--text);
      font-size: 0.95rem;
    }

    .startup-diagnostics-retry {
      border: 1px solid var(--border-strong);
      border-radius: 999px;
      background: var(--surface-strong);
      color: var(--accent);
      padding: 0.4rem 0.8rem;
      cursor: pointer;
      font-weight: 600;
    }

    .startup-diagnostics-retry:disabled {
      opacity: 0.65;
      cursor: wait;
    }