:root {
  /* ── Core ── */
  --bg-color:         #121212;
  --bg-raised:        #1a1a1a;
  --bg-sunken:        #0d0d0d;
  --bg-input:         #111;
  --bg-hover:         #1f1f1f;
  --bg-selected:      #222;

  /* ── Text ── */
  --text-color:       #e0e0e0;
  --text-bright:      #fff;
  --text-muted:       #888;
  --text-subtle:      #555;
  --text-faint:       #444;
  --text-heading:     #e8e8e8;

  /* ── Accent / brand ── */
  --accent-color:     #3498db;
  --accent-faint:     var(--accent-faint);
  --accent-subtle:    var(--accent-subtle);
  --accent-mild:      var(--accent-mild);

  /* ── Borders ── */
  --border-color:     #333;
  --border-subtle:    #222;
  --border-faint:     #1a1a1a;
  --border-input:     #444;

  /* ── Semantic ── */
  --success-color:    #2ecc71;
  --success-faint:    var(--success-faint);
  --error-color:      #e74c3c;
  --error-faint:      var(--error-faint);
  --warning-color:    #b8860b;

  /* ── Misc ── */
  --shadow-color:     rgba(0,0,0,0.6);
  --badge-bg:         #e33;
  --scrollbar-track:  #1a1a1a;
  --scrollbar-thumb:  #333;
}

/* ── Sepia theme ──────────────────────────────────────────────── */
[data-theme="sepia"] {
  --bg-color:         #f4efe4;
  --bg-raised:        #ede7d9;
  --bg-sunken:        #e8e0cf;
  --bg-input:         #faf6ef;
  --bg-hover:         #e8e0cf;
  --bg-selected:      #ddd5c2;

  --text-color:       #433422;
  --text-bright:      #2a1f0f;
  --text-muted:       #7a6a54;
  --text-subtle:      #9a8a74;
  --text-faint:       #b0a090;
  --text-heading:     #2a1f0f;

  --accent-color:     #8b5e3c;
  --accent-faint:     rgba(139, 94, 60, 0.08);
  --accent-subtle:    rgba(139, 94, 60, 0.12);
  --accent-mild:      rgba(139, 94, 60, 0.1);

  --border-color:     #c8b99a;
  --border-subtle:    #d8c9aa;
  --border-faint:     #e0d4be;
  --border-input:     #b0a080;

  --success-color:    #4a7c59;
  --success-faint:    rgba(74, 124, 89, 0.15);
  --error-color:      #a03030;
  --error-faint:      rgba(160, 48, 48, 0.1);
  --warning-color:    #8b6914;

  --shadow-color:     rgba(60, 40, 20, 0.3);
  --badge-bg:         #a03030;
  --scrollbar-track:  #e8e0cf;
  --scrollbar-thumb:  #c8b99a;
}

/* -------------------------
   Global & Body
------------------------- */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#content {
    max-width: 900px;
    width: 100%;
    flex: 1;
    padding: 72px 20px 40px;
    box-sizing: border-box;
}

/* -------------------------
   Series & Book Headers
------------------------- */
.series-title {
    font-size: 1.6em;
    font-weight: 800;
    color: var(--text-bright);
    margin-bottom: 10px;
}

.book-title {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-heading);
    margin-left: 15px;
    margin-bottom: 10px;
}

/* -------------------------
   Site Nav
------------------------- */
#nav-slot {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.site-nav {
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 4px;
    min-width: 80px;
}

.nav-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 80px;
    justify-content: flex-end;
}

.nav-icon-btn {
    background: none;
    border: none;
    font-size: 1.1em;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    color: var(--text-muted);
    transition: background 0.15s;
    line-height: 1;
}

.nav-icon-btn:hover { background: var(--bg-raised); }

.nav-btn {
    padding: 5px 12px;
    font-size: 0.85em;
    cursor: pointer;
    border: 1px solid var(--accent-color);
    background: var(--accent-mild);
    color: var(--accent-color);
    border-radius: 6px;
    transition: opacity 0.15s;
}

.nav-btn:hover { opacity: 0.8; }

.nav-username {
    font-size: 0.82em;
    color: var(--text-muted);
    letter-spacing: 0.01em;
}

/* Push page content below fixed nav */
#main-content {
    padding-top: 48px;
}

/* Welcome page — nav visible but empty, no border needed */
.welcome-landing ~ * .site-nav,
body:has(.welcome-landing) .site-nav {
    border-bottom-color: transparent;
    background: transparent;
}

/* Legacy auth-button — keep for any stragglers */
.auth-button {
    padding: 5px 12px;
    font-size: 0.85em;
    cursor: pointer;
    border: 1px solid var(--accent-color);
    background: var(--accent-mild);
    color: var(--accent-color);
    border-radius: 6px;
}

/* -------------------------
   Book Cards
------------------------- */
.book-card {
    margin: 15px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.book-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.book-card a {
    font-size: 1.1em;
    font-weight: bold;
    text-decoration: none;
    color: var(--accent-color);
}

.goal-container {
    background: var(--bg-selected);
    border-radius: 4px;
    height: 6px;
    width: 100%;
    overflow: hidden;
    margin: 12px 0;
}

.goal-fill {
    background: var(--accent-color);
    height: 100%;
    width: 0%;
    transition: width 0.5s;
}

/* Book meta info inside card */
.book-meta {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: 8px;
}

/* Draft Mode Styling */
.book-card.draft-mode {
    border: 1px dashed var(--error-color);
    background: var(--error-faint);
}

/* -------------------------
   Chapter Items
------------------------- */
.chapter-item {
    margin: 10px 0;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}

.chapter-item:hover {
    background: var(--bg-selected);
}

.chapter-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05em;
}

.chapter-item .badge-new {
    background: var(--success-color);
    color: var(--text-bright);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    margin-left: 8px;
}

/* -------------------------
   Empty / Error Library
------------------------- */
.empty-library {
    padding: 20px;
    background: var(--bg-raised);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    font-size: 1.1em;
}

/* -------------------------
   Author Studio / Forms
------------------------- */
.author-card {
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.studio-input {
    width: 100%;
    padding: 10px;
    background: var(--bg-selected);
    border: 1px solid var(--border-input);
    color: var(--text-bright);
    border-radius: 6px;
    margin: 10px 0;
}

.scroll-list {
    max-height: 150px;
    overflow-y: auto;
    background: var(--bg-input);
    border-radius: 6px;
    margin: 10px 0;
    border: 1px solid var(--border-color);
}

.project-item {
    padding: 10px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9em;
}

.project-item:hover {
    background: var(--bg-selected);
}

.project-item.selected {
    border-left: 4px solid var(--accent-color);
    background: var(--bg-selected);
}

.studio-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    color: var(--text-bright);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}

.studio-btn.small {
    width: auto;
    padding: 5px 15px;
    font-size: 0.8em;
    margin-top: 5px;
}

/* -------------------------
   Misc
------------------------- */
.scrollable {
    overflow-y: auto;
}

a {
    text-decoration: none;
}

button {
    font-family: inherit;
}

h2, h3 {
    margin-top: 20px;
    margin-bottom: 10px;
}

.series-card {
  margin-bottom: 30px;
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-input);
}

.book-card-wrapper {
  margin-left: 20px;
  margin-bottom: 20px;
}

/* -------------------------
   Author Studio Layout
------------------------- */
.studio-wrap {
    max-width: 1100px;
    margin: 0 auto;
}

.studio-body {
    margin-top: 24px;
}

.studio-cols {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
    align-items: start;
}

.studio-panel {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
}

.studio-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.studio-panel-header h3 {
    margin: 0;
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.studio-hint {
    color: var(--text-subtle);
    font-size: 0.9em;
    margin-top: 16px;
    text-align: center;
    padding: 20px 0;
}

/* -------------------------
   Upload Mode Toggle
------------------------- */
.upload-mode-row {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
}

.upload-mode-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9em;
    color: var(--text-color);
    cursor: pointer;
}

/* -------------------------
   Drop Zone
------------------------- */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent-color);
    background: var(--accent-faint);
}

.drop-zone-icon {
    font-size: 2em;
    color: var(--text-subtle);
    margin-bottom: 8px;
}

.drop-zone-text {
    font-size: 0.95em;
    color: var(--text-color);
}

.drop-zone-sub {
    font-size: 0.8em;
    color: var(--text-subtle);
    margin-top: 4px;
}

/* -------------------------
   File List
------------------------- */
.file-list {
    margin-top: 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.file-list-header {
    display: grid;
    grid-template-columns: 50px 1fr 80px 32px;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-input);
    font-size: 0.75em;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-subtle);
}

.file-row {
    display: grid;
    grid-template-columns: 50px 1fr 80px 32px;
    gap: 8px;
    padding: 8px 12px;
    align-items: center;
    border-top: 1px solid var(--border-faint);
    transition: background 0.15s;
}

.file-row:hover {
    background: var(--bg-hover);
}

.file-row.dragging {
    opacity: 0.4;
}

.file-row.drag-target {
    border-top: 2px solid var(--accent-color);
}

.file-row-order {
    font-size: 0.85em;
    color: var(--text-subtle);
    text-align: center;
}

.file-title-input {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-color);
    padding: 4px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    width: 100%;
    transition: border-color 0.15s;
}

.file-title-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-selected);
}

.file-row-words {
    font-size: 0.8em;
    color: var(--text-subtle);
    text-align: right;
}

.slot-input {
    width: 46px;
    background: var(--bg-selected);
    border: 1px solid var(--border-input);
    color: var(--text-bright);
    border-radius: 4px;
    padding: 3px 6px;
    font-size: 0.85em;
    text-align: center;
}

.file-remove-btn {
    background: none;
    border: none;
    color: var(--text-subtle);
    cursor: pointer;
    font-size: 0.9em;
    padding: 2px 6px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}

.file-remove-btn:hover {
    color: var(--error-color);
    background: var(--error-faint);
}

/* -------------------------
   Upload Progress
------------------------- */
.upload-progress-wrap {
    margin-top: 12px;
    background: var(--bg-raised);
    border-radius: 4px;
    height: 6px;
    overflow: hidden;
}

.upload-progress-bar {
    height: 100%;
    background: var(--accent-color);
    width: 0%;
    transition: width 0.2s ease, background 0.3s;
}

/* -------------------------
   Studio Banners
------------------------- */
.studio-banner {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.9em;
    animation: fadeIn 0.2s ease;
}

.studio-banner.success {
    background: var(--success-faint);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.studio-banner.error {
    background: var(--error-faint);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

/* -------------------------
   Create Project Form
------------------------- */
.create-project-form {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 700px) {
    .studio-cols {
        grid-template-columns: 1fr;
    }
}


/* -------------------------
   Floating Back Button
------------------------- */
.floating-back {
    position: fixed;
    top: 60px;
    left: 16px;
    z-index: 200;
    font-size: 0.85em;
    color: var(--accent-color);
    text-decoration: none;
    padding: 6px 12px;
    background: rgba(var(--bg-color), 0.85);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    backdrop-filter: blur(6px);
    transition: border-color 0.15s, background 0.15s;
}

.floating-back:hover {
    border-color: var(--accent-color);
    background: var(--accent-subtle);
}

.reader-nav-btn {
    font-size: 0.85em;
    color: var(--accent-color);
    text-decoration: none;
    padding: 5px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color 0.15s, background 0.15s;
}

.reader-nav-btn:hover {
    border-color: var(--accent-color);
    background: var(--accent-faint);
}

/* -------------------------
   Reader Article
------------------------- */
.reader-article {
    max-width: 680px;
    margin: 0 auto;
}

.reader-title {
    font-size: 1.8em;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-bright);
}

.reader-content {
    font-size: 1.05em;
    line-height: 1.85;
    color: var(--text-color);
}

.reader-content p {
    margin-bottom: 1.4em;
}

.reader-content h1,
.reader-content h2,
.reader-content h3 {
    color: var(--text-bright);
    margin: 2em 0 0.6em;
}

.reader-bottom-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* -------------------------
   Chapter List
------------------------- */
.chapter-list-wrap {
    max-width: 680px;
    margin: 0 auto;
}

.chapter-list-title {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 8px;
}

.chapter-list-meta {
    color: var(--text-subtle);
    font-size: 0.9em;
    margin-bottom: 32px;
}

.chapter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.chapter-list-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 14px 0;
    border-bottom: 1px solid #1e1e1e;
}

.chapter-list-item:first-child {
    border-top: 1px solid var(--border-faint);
}

.chapter-list-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1em;
    transition: color 0.15s;
}

.chapter-list-link:hover {
    color: var(--accent-color);
}

.ch-metadata {
    font-size: 0.8em;
    color: var(--text-subtle);
    flex-shrink: 0;
    margin-left: 16px;
}


/* -------------------------
   Continue Reading Banner
------------------------- */
.continue-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    margin-bottom: 32px;
    background: rgba(52, 152, 219, 0.07);
    border: 1px solid rgba(52, 152, 219, 0.25);
    border-radius: 8px;
    flex-wrap: wrap;
}

.continue-label {
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-subtle);
}

.continue-title {
    font-size: 0.95em;
    color: var(--text-color);
    font-weight: 500;
    flex: 1;
}

/* -------------------------
   Book Card (updated)
------------------------- */
.book-card {
    margin: 8px 0;
    padding: 16px 20px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: border-color 0.2s, transform 0.2s;
}

.book-card:hover {
    border-color: var(--text-faint);
    transform: translateY(-1px);
}

.book-card-title {
    font-size: 1em;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
}

.book-card-meta {
    font-size: 0.78em;
    color: var(--text-subtle);
    margin-top: 6px;
    margin-bottom: 8px;
}

.book-card-action {
    display: inline-block;
    font-size: 0.82em;
    color: var(--accent-color);
    text-decoration: none;
    margin-top: 8px;
    opacity: 0.85;
    transition: opacity 0.15s;
}

.book-card-action:hover {
    opacity: 1;
}

/* -------------------------
   Chapter List (updated)
------------------------- */
.chapter-list-draft {
    font-size: 0.85em;
    color: var(--text-subtle);
    margin-top: -8px;
    margin-bottom: 24px;
    font-style: italic;
}


/* -------------------------
   Invite Modal
------------------------- */
.invite-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}

.invite-modal {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 28px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: fadeIn 0.15s ease;
}

.invite-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    background: none;
    border: none;
    color: var(--text-subtle);
    font-size: 1em;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: color 0.15s;
}

.invite-modal-close:hover {
    color: var(--text-color);
}

/* -------------------------
   Invite Tabs (series / manuscript / draft)
------------------------- */
.invite-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
}

.invite-tab {
    background: none;
    border: none;
    color: var(--text-subtle);
    font-size: 0.85em;
    padding: 7px 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color 0.15s, border-color 0.15s;
    border-radius: 0;
}

.invite-tab:hover {
    color: var(--text-color);
}

.invite-tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* -------------------------
   Invite Panel
------------------------- */
.invite-panel {
    width: 100%;
}

.invite-scope-label {
    font-size: 0.85em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.invite-scope-type {
    color: var(--text-subtle);
    font-size: 0.9em;
}

.invite-form {
    margin-bottom: 20px;
}

.invite-form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    gap: 12px;
}

.invite-form-label {
    font-size: 0.85em;
    color: var(--text-muted);
    white-space: nowrap;
}

.invite-select,
.invite-uses-input {
    flex: 1;
    max-width: 160px;
}

.invite-result {
    margin-top: 14px;
    padding: 12px;
    background: var(--bg-input);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.invite-url-input {
    font-size: 0.8em;
    color: var(--text-muted);
    cursor: text;
}

.invite-error {
    color: var(--error-color);
    font-size: 0.85em;
}

/* -------------------------
   Active Invites List
------------------------- */
.invite-list-heading {
    font-size: 0.78em;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-subtle);
    margin: 20px 0 10px;
}

.invite-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-top: 1px solid var(--border-faint);
}

.invite-row-info {
    display: flex;
    gap: 16px;
    font-size: 0.82em;
}

.invite-uses {
    color: var(--text-color);
}

.invite-expiry {
    color: var(--text-subtle);
}

/* -------------------------
   Invite Redemption Card
------------------------- */
.invite-card {
    max-width: 420px;
    margin: 80px auto;
    padding: 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-align: center;
}

.invite-spinner {
    color: var(--text-subtle);
    font-size: 0.95em;
    animation: pulse 1.2s ease-in-out infinite;
}

.invite-icon {
    font-size: 2.5em;
    margin-bottom: 16px;
}

.invite-icon.success { color: var(--success-color); }
.invite-icon.error   { color: var(--error-color); }

.invite-msg {
    color: var(--text-muted);
    font-size: 0.95em;
    line-height: 1.6;
    margin-bottom: 8px;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}


/* -------------------------
   Skeleton Loaders
------------------------- */
@keyframes shimmer {
  0%   { background-position: -600px 0; }
  100% { background-position: 600px 0; }
}

.skeleton-line,
.skeleton-bar,
.skeleton-card {
  background: linear-gradient(90deg, #1a1a1a 25%, #252525 50%, #1a1a1a 75%);
  background-size: 600px 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: 4px;
}

.skeleton-wrap {
  padding-top: 8px;
}

.skeleton-line {
  height: 14px;
  margin-bottom: 10px;
}

.skeleton-line.wide   { width: 70%; }
.skeleton-line.medium { width: 50%; }
.skeleton-line.short  { width: 30%; }

.skeleton-bar {
  height: 6px;
  width: 100%;
  margin: 10px 0;
  border-radius: 3px;
}

.skeleton-card {
  padding: 16px 20px;
  border-radius: 8px;
  margin-bottom: 12px;
  background: var(--bg-color);
  border: 1px solid var(--border-faint);
}

.skeleton-chapter-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-faint);
  gap: 16px;
}

/* -------------------------
   Spinner
------------------------- */
.spinner-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  gap: 16px;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border-subtle);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-msg {
  font-size: 0.85em;
  color: var(--text-subtle);
}

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

/* -------------------------
   Error Boundary
------------------------- */
.error-boundary {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-subtle);
}

.error-boundary-icon {
  font-size: 2em;
  margin-bottom: 12px;
  color: var(--text-faint);
}

.error-boundary a {
  color: var(--accent-color);
}

/* -------------------------
   Markdown Prose Styles
------------------------- */
.reader-content h1,
.reader-content h2,
.reader-content h3,
.reader-content h4 {
  color: var(--text-bright);
  margin: 2em 0 0.5em;
  font-weight: 600;
  line-height: 1.3;
}

.reader-content h1 { font-size: 1.5em; }
.reader-content h2 { font-size: 1.25em; }
.reader-content h3 { font-size: 1.1em; }

.reader-content p  { margin-bottom: 1.4em; }
.reader-content br { display: block; margin: 0.3em 0; }

.reader-content em     { font-style: italic; }
.reader-content strong { color: var(--text-bright); font-weight: 600; }

.reader-content blockquote {
  border-left: 3px solid var(--border-color);
  margin: 1.5em 0;
  padding: 4px 0 4px 20px;
  color: var(--text-muted);
  font-style: italic;
}

.reader-content hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 2.5em auto;
  width: 40%;
}

.reader-content code {
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 0.88em;
  color: var(--text-muted);
}


/* -------------------------
   Health Dashboard
------------------------- */
.health-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.health-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
}

.health-heading h1 {
  margin: 0;
  font-size: 1.6em;
}

.health-version {
  font-size: 0.8em;
  color: var(--text-subtle);
}

/* ── Status banner ── */
.health-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 0.95em;
  margin-bottom: 24px;
  border: 1px solid transparent;
}

.health-banner.loading {
  background: var(--bg-raised);
  border-color: var(--border-subtle);
  color: var(--text-subtle);
}

.health-banner.ok {
  background: var(--success-faint);
  border-color: rgba(46, 204, 113, 0.3);
  color: var(--text-color);
}

.health-banner.error {
  background: var(--error-faint);
  border-color: rgba(231, 76, 60, 0.3);
  color: var(--text-color);
}

.health-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.health-status-dot.ok    { background: var(--success-color); box-shadow: 0 0 6px var(--success-color); }
.health-status-dot.error { background: var(--error-color);   box-shadow: 0 0 6px var(--error-color); }

/* ── Metric cards ── */
.health-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.health-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 18px 20px;
}

.health-card-label {
  font-size: 0.75em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin-bottom: 8px;
}

.health-card-value {
  font-size: 1.6em;
  font-weight: 700;
  margin-bottom: 4px;
}

.health-card-value.green  { color: var(--success-color); }
.health-card-value.yellow { color: var(--warning-color); }
.health-card-value.red    { color: var(--error-color); }

.health-card-sub {
  font-size: 0.78em;
  color: var(--text-subtle);
}

/* ── Chart ── */
.health-chart-section {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

.health-chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.health-chart-header h3 {
  margin: 0;
  font-size: 0.9em;
  color: var(--text-muted);
  font-weight: 500;
}

.health-chart-legend {
  display: flex;
  gap: 16px;
  font-size: 0.78em;
  color: var(--text-subtle);
  align-items: center;
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
}

.legend-dot.db  { background: var(--accent-color); }
.legend-dot.api { background: var(--success-color); }

.health-chart-wrap {
  height: 200px;
  position: relative;
}

/* ── Footer ── */
.health-footer {
  font-size: 0.78em;
  color: var(--text-faint);
  text-align: center;
  padding: 8px 0;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .health-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* -------------------------
   Footer
------------------------- */
#site-footer {
  border-top: 1px solid var(--border-faint);
  padding: 20px;
  width: 100%;
  box-sizing: border-box;
  margin-top: auto;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-left,
.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-center {
  flex: 1;
  display: flex;
  justify-content: center;
}

.footer-link {
  font-size: 0.8em;
  color: var(--text-subtle);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-link:hover {
  color: var(--accent-color);
}

.footer-link-muted {
  color: var(--text-faint);
}

.footer-link-muted:hover {
  color: var(--text-subtle);
}

.footer-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75em;
  color: var(--text-faint);
}

.footer-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bg-selected);
  flex-shrink: 0;
  transition: background 0.3s, box-shadow 0.3s;
}

.footer-status-text {
  color: var(--text-faint);
}

@media (max-width: 500px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .footer-center {
    justify-content: flex-start;
  }
}

/* ── Visibility toggle ─────────────────────────────────────────── */
.visibility-toggle {
  font-size: 0.72em;
  padding: 3px 8px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-subtle);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  flex-shrink: 0;
}

.visibility-toggle:hover {
  border-color: var(--text-subtle);
  color: var(--text-muted);
}

.visibility-toggle.public {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.visibility-toggle.public:hover {
  background: var(--accent-faint);
}

.visibility-toggle:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Footnote popup ────────────────────────────────────────────── */
.footnote-popup {
  position: absolute;
  width: 280px;
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82em;
  line-height: 1.5;
  color: var(--text-color);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.footnote-popup.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ── Chapter status panel ──────────────────────────────────────── */
.chapter-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-faint);
  gap: 10px;
}

.chapter-status-row:last-child {
  border-bottom: none;
}

.chapter-status-title {
  font-size: 0.88em;
  color: var(--text-muted);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-status-btn {
  font-size: 0.72em;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.15s;
}

.chapter-status-btn.status-hidden {
  color: var(--text-subtle);
  border-color: var(--text-faint);
}

.chapter-status-btn.status-upcoming {
  color: var(--warning-color);
  border-color: var(--warning-color);
}

.chapter-status-btn.status-published {
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.chapter-status-btn:hover {
  opacity: 0.75;
}

.chapter-status-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Upcoming chapter teasers ──────────────────────────────────── */
.chapter-list-item.upcoming {
  opacity: 0.45;
}

.upcoming-title {
  color: var(--text-color);
  font-style: italic;
  cursor: default;
}

.upcoming-badge {
  font-size: 0.78em;
  color: var(--warning-color);
  font-style: italic;
}

/* ── Warmup banner ─────────────────────────────────────────────── */
#warmup-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-subtle);
  text-align: center;
  gap: 8px;
}

#warmup-banner p {
  margin: 0;
  font-size: 1em;
  color: var(--text-muted);
}

.warmup-sub {
  font-size: 0.82em !important;
  color: var(--text-subtle) !important;
}

.warmup-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

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

/* ── Comment badge on Studio button ───────────────────────────── */
.comment-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--badge-bg);
  color: var(--text-bright);
  font-size: 0.65em;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  pointer-events: none;
}

/* ── Feedback panel (studio) ───────────────────────────────────── */
.feedback-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.feedback-tab {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-subtle);
  font-size: 0.78em;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.feedback-tab.active {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.feedback-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feedback-card {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feedback-card.status-flagged  { border-left: 3px solid var(--warning-color); }
.feedback-card.status-accepted { border-left: 3px solid var(--accent-color); }
.feedback-card.status-dismissed { opacity: 0.5; }

.feedback-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.feedback-who {
  font-size: 0.8em;
  color: var(--accent-color);
  font-weight: 600;
}

.feedback-category {
  font-size: 0.75em;
  color: var(--text-muted);
  background: var(--bg-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 2px 8px;
}

.feedback-when {
  font-size: 0.72em;
  color: var(--text-faint);
  margin-left: auto;
}

.feedback-quote {
  margin: 0;
  padding: 8px 12px;
  border-left: 2px solid var(--border-color);
  color: var(--text-subtle);
  font-style: italic;
  font-size: 0.85em;
  background: var(--bg-sunken);
  border-radius: 0 4px 4px 0;
}

.feedback-note {
  margin: 0;
  font-size: 0.9em;
  color: var(--text-color);
  line-height: 1.5;
}

.feedback-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.feedback-action-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.78em;
  padding: 4px 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.feedback-action-btn:hover {
  border-color: var(--text-subtle);
  color: var(--text-muted);
}

.feedback-action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Hidden chapter (author view) ──────────────────────────────── */
.chapter-list-item.hidden-chapter {
  opacity: 0.5;
}

.hidden-badge {
  font-size: 0.78em;
  color: var(--text-subtle);
  font-style: italic;
}

/* ── Chapter delete button ─────────────────────────────────────── */
.chapter-delete-btn {
  background: transparent;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 0.85em;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: color 0.15s;
  line-height: 1;
}

.chapter-delete-btn:hover {
  color: var(--error-color);
}

.chapter-delete-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ── Download draft button ─────────────────────────────────────── */
.download-draft-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-subtle);
  font-size: 0.8em;
  padding: 6px 14px;
  cursor: pointer;
  margin: 10px 0 4px;
  transition: all 0.15s;
  display: inline-block;
}

.download-draft-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.download-draft-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Chapter reorder drag-and-drop ─────────────────────────────── */
.drag-handle {
  color: var(--text-faint);
  cursor: grab;
  font-size: 1.1em;
  padding: 0 6px 0 0;
  user-select: none;
  flex-shrink: 0;
}

.drag-handle:active {
  cursor: grabbing;
}

.chapter-status-row.dragging {
  opacity: 0.4;
}

.chapter-status-row.drag-over {
  border-top: 2px solid var(--accent-color);
}

/* ── Click-to-replace chapter title ────────────────────────────── */
.chapter-replaceable {
  cursor: pointer;
  transition: color 0.15s;
}

.chapter-replaceable:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

/* ── Comment trigger button ────────────────────────────────────── */
.comment-trigger-btn {
  position: fixed;
  bottom: 32px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-raised);
  color: var(--text-muted);
  font-size: 1.2em;
  cursor: pointer;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px var(--shadow-color);
  transition: border-color 0.15s, color 0.15s, transform 0.15s;
}

.comment-trigger-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: scale(1.05);
}

.comment-trigger-btn.has-selection {
  border-color: var(--accent-color);
  color: var(--accent-color);
  animation: pulse-btn 1s ease infinite;
}

@keyframes pulse-btn {
  0%, 100% { box-shadow: 0 2px 12px var(--shadow-color); }
  50%       { box-shadow: 0 2px 20px var(--accent-subtle); }
}

/* ── Comment panel ─────────────────────────────────────────────── */
.comment-panel {
  position: fixed;
  bottom: 0;
  right: 0;
  width: 360px;
  max-width: 100vw;
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  padding: 20px;
  z-index: 1000;
  box-shadow: 0 -4px 32px var(--shadow-color);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transform: translateY(110%);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.comment-panel.open {
  transform: translateY(0);
}

.cp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cp-title {
  font-size: 0.85em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

.cp-close {
  background: none;
  border: none;
  color: var(--text-subtle);
  cursor: pointer;
  font-size: 0.9em;
  padding: 0;
  line-height: 1;
  transition: color 0.15s;
}

.cp-close:hover { color: var(--text-muted); }

/* ── Selection reference block ─────────────────────────────────── */
.cp-selection-block {
  background: var(--bg-sunken);
  border-left: 3px solid var(--accent-color);
  border-radius: 0 6px 6px 0;
  padding: 10px 12px;
}

.cp-selection-text {
  font-style: italic;
  font-size: 0.85em;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 4px;
}

.cp-selection-hint {
  font-size: 0.75em;
  color: var(--accent-color);
}

/* ── Form fields ───────────────────────────────────────────────── */
.cp-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cp-label {
  font-size: 0.72em;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-subtle);
}

.cp-category {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-color);
  padding: 7px 10px;
  font-size: 0.88em;
  width: 100%;
}

.cp-category-hints {
  min-height: 1.4em;
}

.cp-cat-hint {
  font-size: 0.75em;
  color: var(--text-subtle);
  font-style: italic;
  display: none;
}

.cp-note {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-color);
  padding: 8px 10px;
  font-size: 0.88em;
  font-family: inherit;
  resize: vertical;
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.15s;
}

.cp-note:focus {
  outline: none;
  border-color: var(--accent-color);
}

.cp-error {
  font-size: 0.78em;
  color: var(--error-color);
  min-height: 1em;
}

.cp-submit {
  background: var(--accent-color);
  border: none;
  border-radius: 6px;
  color: var(--text-bright);
  font-size: 0.88em;
  font-weight: 600;
  padding: 10px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.cp-submit:hover   { opacity: 0.85; }
.cp-submit:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Mobile: full width panel ──────────────────────────────────── */
.comment-panel {
  max-height: 85vh;
  overflow-y: auto;
}

@media (max-width: 480px) {
  .comment-panel {
    left: 0;
    right: 0;
    width: auto;
    box-sizing: border-box;
    border-radius: 12px 12px 0 0;
    max-height: 80vh;
    padding: 16px;
    gap: 12px;
  }

  .comment-trigger-btn {
    bottom: 20px;
    right: 16px;
    width: 44px;
    height: 44px;
  }

  .cp-note {
    font-size: 16px; /* prevent iOS zoom on focus */
  }

  .cp-category {
    font-size: 16px; /* prevent iOS zoom on focus */
  }
}

/* ── Username interstitial ─────────────────────────────────────── */
.username-interstitial {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding: 24px;
}

.username-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
  max-width: 440px;
  width: 100%;
  text-align: center;
}

.username-icon {
  font-size: 2.5em;
  margin-bottom: 16px;
}

.username-title {
  font-size: 1.4em;
  font-weight: 700;
  color: var(--text-heading);
  margin: 0 0 10px;
}

.username-subtitle {
  font-size: 0.88em;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 0 28px;
}

.username-field {
  text-align: left;
  margin-bottom: 20px;
}

.username-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s;
}

.username-input-wrap:focus-within {
  border-color: var(--accent-color);
}

.username-prefix {
  padding: 0 10px;
  color: var(--text-muted);
  font-size: 1em;
  user-select: none;
}

.username-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-color);
  font-size: 1em;
  padding: 10px 12px 10px 0;
  font-family: inherit;
}

.username-hint {
  font-size: 0.75em;
  color: var(--text-subtle);
  margin-top: 6px;
}

.username-status {
  font-size: 0.78em;
  margin-top: 4px;
  min-height: 1.2em;
}

.username-status.available { color: var(--success-color); }
.username-status.taken     { color: var(--error-color); }
.username-status.checking  { color: var(--text-muted); }

.username-submit {
  width: 100%;
  background: var(--accent-color);
  color: var(--text-bright);
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 0.95em;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-bottom: 10px;
}

.username-submit:hover    { opacity: 0.85; }
.username-submit:disabled { opacity: 0.35; cursor: not-allowed; }

.username-error {
  font-size: 0.78em;
  color: var(--error-color);
  min-height: 1em;
}

.auth-username {
  font-size: 0.82em;
  color: var(--text-muted);
  margin-left: 8px;
}

/* ── Account linking ───────────────────────────────────────────── */
.username-link-offer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.username-link-text {
  font-size: 0.82em;
  color: var(--text-muted);
  margin: 0 0 10px;
}

.username-link-btn {
  background: none;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.85em;
  cursor: pointer;
  transition: background 0.15s;
}

.username-link-btn:hover    { background: var(--accent-color); color: var(--text-bright); }
.username-link-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.username-link-sent {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-input);
  border-radius: 8px;
  text-align: center;
}

.username-link-sent-icon { font-size: 2em; margin-bottom: 10px; }

.username-link-sent-text {
  font-size: 0.88em;
  color: var(--text-color);
  line-height: 1.6;
  margin: 0 0 6px;
}

.username-link-sent-sub {
  font-size: 0.78em;
  color: var(--text-muted);
  margin: 0;
}

/* ── Welcome landing (anonymous users) ────────────────────────── */
.welcome-landing {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  padding: 24px;
}

.welcome-card {
  text-align: center;
  max-width: 460px;
  width: 100%;
}

.welcome-icon {
  font-size: 3em;
  margin-bottom: 16px;
}

.welcome-title {
  font-size: 2em;
  font-weight: 700;
  color: var(--text-heading);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.welcome-subtitle {
  font-size: 1em;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 20px;
}

.welcome-note {
  font-size: 0.82em;
  color: var(--text-subtle);
  line-height: 1.6;
  margin: 0 0 28px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-raised);
}

.welcome-login-btn {
  background: var(--accent-color);
  color: var(--text-bright);
  border: none;
  border-radius: 8px;
  padding: 13px 28px;
  font-size: 0.95em;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.welcome-login-btn:hover { opacity: 0.85; }

/* ── Library wordmark ──────────────────────────────────────────── */
.library-wordmark {
  text-align: center;
  font-family: 'Georgia', serif;
  font-size: 1.05em;
  color: var(--text-subtle);
  letter-spacing: 0.03em;
  padding: 28px 0 8px;
  user-select: none;
}

/* ── Profile dropdown ──────────────────────────────────────────── */
.nav-profile-wrap {
  position: relative;
}

.nav-profile-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 148px;
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 16px var(--shadow-color);
  padding: 6px;
  z-index: 2000;
}

.nav-profile-dropdown.open { display: block; }

.nav-dropdown-username {
  font-size: 0.78em;
  color: var(--text-muted);
  padding: 6px 10px 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 4px;
}

.nav-dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 7px 10px;
  font-size: 0.85em;
  color: var(--text-color);
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.12s;
}

.nav-dropdown-item:hover { background: var(--bg-input); }

/* ── Admin panel ───────────────────────────────────────────────── */
.admin-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px;
}

.admin-header {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
  font-size: 1.6em;
  color: var(--text-heading);
  margin: 0 0 6px;
}

.admin-subtitle {
  font-size: 0.85em;
  color: var(--text-muted);
  margin: 0;
}

.admin-coming-soon {
  color: var(--text-muted);
  font-size: 0.9em;
  padding: 40px 0;
  text-align: center;
}

/* ── Admin panel — full ────────────────────────────────────────── */

.admin-tab-bar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0;
}

.admin-tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85em;
  font-family: inherit;
  padding: 8px 14px;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}

.admin-tab-btn:hover { color: var(--text-color); }

.admin-tab-btn.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

.admin-tab-content {
  min-height: 300px;
}

.admin-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.admin-section-header h3 {
  font-size: 1em;
  color: var(--text-heading);
  margin: 0;
  font-weight: 600;
}

.admin-count {
  font-size: 0.8em;
  color: var(--text-muted);
  font-weight: normal;
}

.admin-error {
  color: var(--error-color);
  padding: 20px 0;
  font-size: 0.9em;
}

.admin-empty {
  color: var(--text-muted);
  font-size: 0.9em;
  padding: 32px 0;
  text-align: center;
}

.admin-banner {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 0.85em;
  margin-bottom: 12px;
  background: rgba(46,204,113,0.12);
  color: var(--success-color);
  border: 1px solid rgba(46,204,113,0.2);
}

.admin-banner.error {
  background: rgba(231,76,60,0.1);
  color: var(--error-color);
  border-color: rgba(231,76,60,0.2);
}

/* ── Stat cards ─────────────────────────────────────────────────── */

.admin-stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
}

.admin-stat-card.accent {
  border-color: var(--accent-color);
  background: rgba(52,152,219,0.05);
}

.admin-stat-value {
  font-size: 2em;
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 4px;
}

.admin-stat-card.accent .admin-stat-value {
  color: var(--accent-color);
}

.admin-stat-label {
  font-size: 0.8em;
  color: var(--text-color);
  font-weight: 500;
}

.admin-stat-period {
  font-size: 0.72em;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Chart ──────────────────────────────────────────────────────── */

.admin-chart-wrap {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 24px;
}

/* ── Tables ─────────────────────────────────────────────────────── */

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85em;
}

.admin-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
}

.admin-table td {
  padding: 10px 10px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-color);
  vertical-align: middle;
}

.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg-hover); }

.admin-sub {
  font-family: monospace;
  font-size: 0.8em;
  color: var(--text-muted);
}

/* ── Badges ─────────────────────────────────────────────────────── */

.admin-badge {
  display: inline-block;
  font-size: 0.72em;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 500;
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.admin-badge.accent  { background: rgba(52,152,219,0.15);  color: var(--accent-color);  border-color: rgba(52,152,219,0.3);  }
.admin-badge.success { background: rgba(46,204,113,0.12);  color: var(--success-color); border-color: rgba(46,204,113,0.25); }
.admin-badge.warn    { background: rgba(184,134,11,0.12);  color: #e6ac00;              border-color: rgba(184,134,11,0.25); }
.admin-badge.danger  { background: rgba(231,76,60,0.12);   color: var(--error-color);   border-color: rgba(231,76,60,0.25);  }
.admin-badge.pending { background: rgba(52,152,219,0.1);   color: var(--accent-color);  border-color: rgba(52,152,219,0.2);  }
.admin-badge.approved{ background: rgba(46,204,113,0.12);  color: var(--success-color); border-color: rgba(46,204,113,0.25); }
.admin-badge.rejected{ background: rgba(231,76,60,0.1);    color: var(--error-color);   border-color: rgba(231,76,60,0.2);   }

/* ── Action buttons ─────────────────────────────────────────────── */

.admin-action-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  color: var(--text-color);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 0.78em;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  margin-right: 4px;
}

.admin-action-btn:hover   { background: var(--bg-hover); }
.admin-action-btn.success { color: var(--success-color); border-color: rgba(46,204,113,0.3); }
.admin-action-btn.danger  { color: var(--error-color);   border-color: rgba(231,76,60,0.3);  }
.admin-action-btn.active  { color: var(--accent-color);  border-color: rgba(52,152,219,0.3); }

/* ── Input ──────────────────────────────────────────────────────── */

.admin-input {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  color: var(--text-color);
  border-radius: 4px;
  padding: 5px 10px;
  font-size: 0.82em;
  font-family: inherit;
  width: 240px;
  margin-right: 8px;
}

.admin-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* ── Application cards ──────────────────────────────────────────── */

.admin-app-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
}

.admin-app-card.pending { border-left: 3px solid var(--accent-color); }
.admin-app-card.approved { border-left: 3px solid var(--success-color); }
.admin-app-card.rejected { border-left: 3px solid var(--error-color); opacity: 0.7; }

.admin-app-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.admin-app-date {
  font-size: 0.75em;
  color: var(--text-muted);
  margin-left: auto;
}

.admin-app-email {
  font-size: 0.8em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.admin-app-section {
  margin-bottom: 8px;
  font-size: 0.85em;
}

.admin-app-section strong {
  display: block;
  color: var(--text-muted);
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.admin-app-section p {
  margin: 0;
  color: var(--text-color);
  line-height: 1.5;
}

.admin-app-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

/* ── Manuscript cards ───────────────────────────────────────────── */

.admin-manuscript-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
}

.admin-manuscript-title {
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 10px;
  font-size: 0.95em;
}

.admin-draft-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-draft-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-faint);
  flex-wrap: wrap;
}

.admin-draft-row:last-child { border-bottom: none; }

.admin-draft-name {
  font-size: 0.85em;
  color: var(--text-color);
  min-width: 100px;
}

.admin-draft-actions {
  margin-left: auto;
  display: flex;
  gap: 4px;
}

/* ── Message cards ──────────────────────────────────────────────── */

.admin-message-card {
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
}

.admin-message-card.unread { border-left: 3px solid var(--accent-color); }
.admin-message-card.resolved { opacity: 0.65; }

.admin-message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.admin-message-from {
  font-size: 0.78em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.admin-message-body {
  font-size: 0.88em;
  color: var(--text-color);
  line-height: 1.5;
  white-space: pre-wrap;
}

.admin-message-note {
  margin-top: 10px;
  font-size: 0.82em;
  color: var(--text-muted);
  padding: 8px;
  background: var(--bg-sunken);
  border-radius: 4px;
}

/* ── Author application form ────────────────────────────────────── */

.apply-wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.apply-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.apply-header h1 {
  font-size: 1.6em;
  color: var(--text-heading);
  margin: 0 0 10px;
}

.apply-subtitle {
  color: var(--text-muted);
  font-size: 0.9em;
  line-height: 1.6;
  margin: 0;
}

.apply-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.apply-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.apply-label {
  font-size: 0.85em;
  font-weight: 600;
  color: var(--text-color);
}

.apply-required {
  color: var(--accent-color);
  margin-left: 2px;
}

.apply-muted {
  color: var(--text-muted);
  font-weight: normal;
}

.apply-hint {
  font-size: 0.78em;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.apply-input {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9em;
  padding: 10px 12px;
  transition: border-color 0.15s;
  width: 100%;
  box-sizing: border-box;
}

.apply-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.apply-textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9em;
  line-height: 1.6;
  padding: 10px 12px;
  resize: vertical;
  transition: border-color 0.15s;
  width: 100%;
  box-sizing: border-box;
}

.apply-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.apply-char-count {
  font-size: 0.72em;
  color: var(--text-faint);
  text-align: right;
}

.apply-error {
  color: var(--error-color);
  font-size: 0.85em;
  min-height: 1em;
}

.apply-submit {
  background: var(--accent-color);
  border: none;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9em;
  font-weight: 600;
  padding: 12px 24px;
  transition: opacity 0.15s;
  align-self: flex-start;
}

.apply-submit:hover   { opacity: 0.85; }
.apply-submit:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Success state ──────────────────────────────────────────────── */

.apply-success {
  text-align: center;
  padding: 48px 24px;
}

.apply-success-icon {
  font-size: 2.5em;
  color: var(--success-color);
  margin-bottom: 16px;
}

.apply-success h2 {
  color: var(--text-heading);
  margin: 0 0 10px;
  font-size: 1.3em;
}

.apply-success p {
  color: var(--text-muted);
  font-size: 0.9em;
  line-height: 1.6;
  margin: 0 0 24px;
}

.apply-back-link {
  color: var(--accent-color);
  font-size: 0.85em;
  text-decoration: none;
}

.apply-back-link:hover { text-decoration: underline; }

/* ── New project onboarding ──────────────────────────────────────── */

.newproject-wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.newproject-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.newproject-welcome {
  font-size: 0.8em;
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.newproject-header h1 {
  font-size: 1.5em;
  color: var(--text-heading);
  margin: 0 0 10px;
}

.newproject-subtitle {
  color: var(--text-muted);
  font-size: 0.88em;
  line-height: 1.6;
  margin: 0;
}

.newproject-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.newproject-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.newproject-label {
  font-size: 0.85em;
  font-weight: 600;
  color: var(--text-color);
}

.newproject-hint-inline {
  font-size: 0.85em;
  color: var(--text-muted);
  font-weight: normal;
}

.newproject-required {
  color: var(--accent-color);
  margin-left: 2px;
}

.newproject-input {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9em;
  padding: 10px 12px;
  transition: border-color 0.15s;
  width: 100%;
  box-sizing: border-box;
}

.newproject-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.newproject-error {
  color: var(--error-color);
  font-size: 0.85em;
  min-height: 1em;
}

.newproject-submit {
  background: var(--accent-color);
  border: none;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9em;
  font-weight: 600;
  padding: 12px 24px;
  transition: opacity 0.15s;
  align-self: flex-start;
}

.newproject-submit:hover    { opacity: 0.85; }
.newproject-submit:disabled { opacity: 0.5; cursor: not-allowed; }

/* Accent nav button for onboarding CTA */
.nav-btn-accent {
  background: var(--accent-color) !important;
  color: #fff !important;
  border-color: var(--accent-color) !important;
}