:root {
    --orion-primary: #102c46;
    --orion-secondary: #466579;
    --orion-accent: #e2a84b;
    --orion-background: #f3f0e9;
    --orion-surface: #fffdf8;
    --orion-text: #17232b;
    --orion-muted: #70808a;
    --orion-border: #d9d9d0;
    --orion-shadow: 0 18px 50px rgba(16, 44, 70, .10);
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--orion-background); color: var(--orion-text); font-family: 'DM Sans', sans-serif; }
h1, h2 { font-family: 'Libre Baskerville', serif; font-weight: 400; letter-spacing: 0; }
a { color: var(--orion-primary); }
.site-shell { min-height: 100vh; background: radial-gradient(circle at 82% 8%, rgba(226, 168, 75, .12), transparent 24rem), var(--orion-background); }
.topbar { align-items: center; display: flex; justify-content: space-between; max-width: 1240px; margin: 0 auto; padding: 26px 32px; }
.brand { align-items: center; color: var(--orion-primary); display: inline-flex; font-size: .92rem; gap: 10px; text-decoration: none; }
.brand img { height: 34px; width: 34px; }
.brand strong { font-weight: 700; }
.topnav { align-items: center; display: flex; gap: 20px; }
.topnav a { font-size: .9rem; text-decoration: none; }
.user-menu { position: relative; }
.user-chip { border-left: 1px solid var(--orion-border); color: var(--orion-muted); cursor: pointer; list-style: none; padding-left: 20px; }
.user-chip::-webkit-details-marker { display: none; }
.user-menu-panel { background: var(--orion-surface); box-shadow: var(--orion-shadow); min-width: 150px; padding: 8px; position: absolute; right: 0; top: calc(100% + 12px); z-index: 20; }
.user-menu-panel a { display: block; padding: 9px 10px; }
.user-menu-panel a:hover, .user-menu-panel a:focus-visible { background: rgba(70, 101, 121, .08); }
.button { border: 0; cursor: pointer; display: inline-flex; align-items: center; gap: 12px; font: inherit; font-size: .9rem; justify-content: center; padding: 13px 18px; transition: transform .2s, background .2s; }
.button:hover:not(:disabled) { transform: translateY(-2px); }
.button:disabled { cursor: not-allowed; opacity: .45; }
.button-primary { background: var(--orion-primary); color: #fff; }
.button-outline { background: transparent; border: 1px solid var(--orion-primary); color: var(--orion-primary); }
.button-quiet { background: transparent; color: var(--orion-primary); padding: 4px 0; }
.page-content { margin: 0 auto; max-width: 1240px; padding: 42px 32px 80px; }
.auth-layout { align-items: center; display: grid; gap: clamp(48px, 9vw, 150px); grid-template-columns: 1.1fr .9fr; margin: 5vh auto 0; max-width: 1020px; }
.auth-intro h1 { color: var(--orion-primary); font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 1.17; margin: 16px 0 24px; }
.auth-intro h1 em { color: var(--orion-secondary); font-style: normal; }
.eyebrow { color: var(--orion-accent); font-size: .7rem; font-weight: 700; letter-spacing: .18em; margin: 0; }
.lead-copy { color: var(--orion-muted); line-height: 1.75; max-width: 430px; }
.constellation-line { display: flex; align-items: center; gap: 18px; margin-top: 48px; }
.constellation-line span { background: var(--orion-accent); border-radius: 50%; display: block; height: 5px; width: 5px; }
.constellation-line span:nth-child(2), .constellation-line span:nth-child(4) { height: 9px; width: 9px; }
.auth-panel { background: var(--orion-surface); box-shadow: var(--orion-shadow); padding: 42px; }
.auth-panel h2 { color: var(--orion-primary); font-size: 1.6rem; margin: 0 0 10px; }
.profile-page h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 40px; }
.profile-panel { background: var(--orion-surface); box-shadow: var(--orion-shadow); max-width: 560px; padding: 32px; }
.profile-name { color: var(--orion-primary); font-family: 'Libre Baskerville', serif; font-size: 1.35rem; margin: 0; }
.profile-select { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; padding: 11px 12px; }
.font-preview { border-left: 2px solid var(--orion-accent); color: var(--orion-secondary); line-height: 1.7; margin: 18px 0 0; padding: 12px; }
.panel-copy, .switch-copy { color: var(--orion-muted); font-size: .9rem; }
.form-stack { display: flex; flex-direction: column; gap: 9px; margin-top: 28px; }
.form-stack label { color: var(--orion-secondary); font-size: .8rem; font-weight: 600; margin-top: 8px; }
.form-stack input { background: transparent; border: 0; border-bottom: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; outline: none; padding: 10px 0; }
.form-stack input:focus { border-color: var(--orion-accent); }
.form-stack .button { margin-top: 18px; width: 100%; }
.switch-copy { margin: 28px 0 0; text-align: center; }
.switch-copy a { font-weight: 600; text-decoration: none; }
.alert { border-radius: 0; font-size: .85rem; margin-top: 20px; }
.library-search { align-items: center; display: flex; gap: 8px; margin-top: 34px; max-width: 620px; }
.library-search input { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); flex: 1; font: inherit; min-width: 0; padding: 12px 14px; }
.library-search input:focus { border-color: var(--orion-accent); outline: 2px solid rgba(226, 168, 75, .2); }
.library-search select { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; min-width: 170px; padding: 12px 10px; }
.library-search .button { padding: 11px 15px; }
.library-heading { align-items: end; display: flex; justify-content: space-between; }
.upload-form { margin-top: 28px; }
.admin-library-action { border-top: 1px solid var(--orion-border); margin-top: 64px; max-width: 760px; padding-top: 18px; }
.admin-library-action > p { color: var(--orion-muted); font-size: .82rem; line-height: 1.6; margin: 0 0 14px; }
.admin-upload-form { align-items: center; column-gap: 14px; display: grid; grid-template-columns: max-content minmax(0, 1fr) max-content; margin-top: 0; row-gap: 8px; }
.admin-upload-form .upload-file-row { min-width: 0; }
.admin-upload-form .upload-help { line-height: 1.4; margin: 0; }
.admin-upload-form .button { font-size: .8rem; min-height: 38px; padding: 8px 12px; white-space: nowrap; }
.upload-file-row { align-items: center; display: flex; gap: 12px; }
.upload-help { color: var(--orion-muted); font-size: .78rem; }
.member-proposal { border-top: 1px solid var(--orion-border); margin-top: 64px; max-width: 760px; padding-top: 18px; }
.member-proposal summary { color: var(--orion-secondary); cursor: pointer; font-size: .86rem; font-weight: 600; list-style-position: inside; }
.member-proposal summary::marker { color: var(--orion-accent); }
.member-proposal-content { background: rgba(255, 253, 248, .58); margin-top: 18px; padding: 22px 24px 24px; }
.member-proposal-content > p { color: var(--orion-muted); font-size: .82rem; line-height: 1.6; margin: 0; max-width: 640px; }
.member-upload-form { max-width: 760px; }
.member-upload-fields { display: grid; gap: 14px; margin-top: 18px; }
.member-upload-fields label { color: var(--orion-secondary); display: block; font-size: .8rem; font-weight: 600; }
.member-upload-fields textarea { border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; line-height: 1.5; margin-top: 7px; padding: 10px 12px; resize: vertical; width: 100%; }
.member-upload-fields textarea:focus { border-color: var(--orion-accent); outline: 2px solid rgba(226, 168, 75, .2); }
.upload-consent { align-items: flex-start; display: flex !important; gap: 8px; line-height: 1.5; }
.upload-consent input { accent-color: var(--orion-primary); margin-top: 3px; }
.member-upload-fields .button { justify-self: start; }
.upload-form input[type="file"] { display: none; }
.library-heading h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 10px; }
.library-tabs { border-bottom: 1px solid var(--orion-border); display: flex; gap: 28px; margin-top: 55px; overflow-x: auto; }
.library-tabs a { color: var(--orion-muted); font-size: .84rem; padding: 0 0 14px; text-decoration: none; white-space: nowrap; }
.library-tabs a.active { border-bottom: 2px solid var(--orion-accent); color: var(--orion-primary); font-weight: 700; }
.library-tabs span { color: var(--orion-muted); font-size: .72rem; margin-left: 4px; }
.empty-library { margin: 80px auto; max-width: 460px; text-align: center; }
.empty-mark { align-items: center; background: rgba(226, 168, 75, .13); border-radius: 50%; display: flex; height: 86px; justify-content: center; margin: 0 auto 24px; width: 86px; }
.empty-mark img { height: 46px; width: 46px; }
.empty-library h2 { color: var(--orion-primary); font-size: 1.5rem; }
.empty-library p { color: var(--orion-muted); font-size: .92rem; line-height: 1.7; margin-bottom: 25px; }
.book-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin-top: 48px; }
.book-card { background: var(--orion-surface); box-shadow: var(--orion-shadow); min-width: 0; }
.book-cover { align-items: center; background: var(--orion-primary); display: flex; height: 220px; justify-content: center; max-height: 220px; overflow: hidden; }
.book-cover img { display: block; height: 100%; object-fit: contain; width: 100%; }
.book-cover img[src*="orion-mark.svg"] { height: 76px; opacity: .8; width: 76px; }
.submission-cover { height: 180px; margin: 12px 0; max-width: 132px; }
.book-card-body { padding: 20px; }
.book-language { color: var(--orion-accent); font-size: .68rem; font-weight: 700; letter-spacing: .12em; margin: 0 0 10px; text-transform: uppercase; }
.book-card h2 { -webkit-box-orient: vertical; -webkit-line-clamp: 3; color: var(--orion-primary); display: -webkit-box; font-size: 1.15rem; height: 4.83em; line-height: 1.4; margin: 0; max-height: 4.83em; overflow: hidden; }
.book-card h2 a { color: inherit; text-decoration: none; }
.book-detail-layout { align-items: start; display: grid; gap: 40px; grid-template-columns: minmax(180px, 280px) minmax(0, 1fr); margin-top: 32px; }
.book-detail-cover img { aspect-ratio: 2 / 3; display: block; object-fit: cover; width: 100%; }
.book-detail-content h1 { color: var(--orion-primary); margin: 8px 0 12px; }
.book-detail-meta { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 28px 0; }
.book-detail-meta div { border-left: 3px solid var(--orion-accent); padding-left: 12px; }
.book-detail-meta dt { color: var(--orion-muted); font-size: .75rem; text-transform: uppercase; }
.book-detail-meta dd { margin: 4px 0 0; }
.book-detail-description { line-height: 1.7; max-width: 70ch; }
.book-detail-actions { margin-top: 28px; }
.catalog-pagination { align-items: center; display: flex; gap: 18px; justify-content: center; margin-top: 36px; }
.catalog-pagination span { color: var(--orion-muted); font-size: .85rem; }
.reader-bookmark-row { align-items: center; display: flex; gap: 8px; justify-content: space-between; }
.reader-bookmark-jump { background: transparent; border: 0; color: var(--orion-primary); cursor: pointer; flex: 1; font: inherit; padding: 6px 0; text-align: left; }
.reader-bookmark-date { color: var(--orion-muted); display: block; font-size: .72rem; margin-top: 4px; }
.book-subtitle, .book-author { color: var(--orion-muted); font-size: .82rem; margin: 8px 0 0; }
.book-author { color: var(--orion-secondary); font-weight: 600; }
.book-categories { color: var(--orion-muted); font-size: .78rem; margin: 8px 0 0; }
.book-actions { display: grid; gap: 8px; margin-top: 18px; }
.book-open { font-size: .78rem; padding: 9px 12px; width: 100%; }
.button-annotations { background: rgba(70, 101, 121, .08); color: var(--orion-secondary); font-size: .78rem; padding: 9px 12px; width: 100%; }
.button-notebook { background: rgba(226, 168, 75, .10); color: var(--orion-primary); font-size: .78rem; padding: 9px 12px; width: 100%; }
.admin-book-management { border-top: 1px solid var(--orion-border); margin-top: 32px; padding-top: 20px; }
.admin-book-management h2 { color: var(--orion-primary); font-size: 1.15rem; margin: 0 0 8px; }
.admin-book-management p { color: var(--orion-muted); font-size: .85rem; line-height: 1.6; }
.admin-book-management form { display: grid; gap: 8px; margin-top: 14px; max-width: 360px; }
.admin-book-management label { color: var(--orion-secondary); font-size: .78rem; font-weight: 600; }
.admin-book-management input[type="file"] { color: var(--orion-muted); font-size: .78rem; max-width: 100%; }
.bulk-upload-form { background: var(--orion-surface); box-shadow: var(--orion-shadow); display: grid; gap: 12px; margin-top: 32px; max-width: 620px; padding: 28px; }
.bulk-upload-form label { color: var(--orion-secondary); font-size: .82rem; font-weight: 600; }
.bulk-upload-form input[type="file"] { border: 1px solid var(--orion-border); padding: 10px; }
.bulk-results { background: var(--orion-surface); margin-top: 28px; max-width: 760px; padding: 22px; }
.bulk-results h2 { color: var(--orion-primary); font-size: 1.2rem; }
.bulk-results p { font-size: .85rem; margin: 8px 0; }
.bulk-success { color: #3b6d50; }
.bulk-error { color: #a94442; }
.admin-moderation-stats { border-bottom: 1px solid var(--orion-border); border-top: 1px solid var(--orion-border); display: grid; gap: 16px; grid-template-columns: repeat(6, minmax(0, 1fr)); margin: 24px 0; padding: 14px 0; }
.admin-moderation-stats div { display: grid; gap: 4px; }
.admin-moderation-stats dt { color: var(--orion-muted); font-size: .72rem; }
.admin-moderation-stats dd { color: var(--orion-primary); font-size: 1.2rem; font-weight: 700; margin: 0; }
.admin-metadata-form { border-top: 1px solid var(--orion-border); margin-top: 20px; padding-top: 20px; }
.admin-metadata-form input, .admin-metadata-form textarea { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; padding: 9px 10px; width: 100%; }
.category-picker { background: var(--orion-surface); border: 1px solid var(--orion-border); }
.category-picker summary { color: var(--orion-primary); cursor: pointer; font-size: .82rem; padding: 10px; }
.category-picker-options { border-top: 1px solid var(--orion-border); display: grid; gap: 8px; max-height: 220px; overflow-y: auto; padding: 10px; }
.category-picker-options label { color: var(--orion-text); cursor: pointer; font-size: .8rem; margin: 0; }
.category-picker-options input { margin-right: 6px; width: auto; }
.admin-metadata-form textarea { resize: vertical; }
.admin-metadata-form label { display: block; margin-top: 10px; }
.admin-metadata-form small { color: var(--orion-muted); font-size: .72rem; }
.book-danger-zone { align-items: center; border-top: 1px solid var(--orion-border); color: var(--orion-muted); display: flex; font-size: .68rem; justify-content: space-between; margin-top: 16px; padding-top: 14px; }
.book-danger-zone form { margin: 0; }
.button-danger { background: transparent; border: 0; color: #a94442; font-size: .72rem; padding: 4px 0; }
.reader-shell { background: var(--orion-surface); box-shadow: var(--orion-shadow); display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto minmax(0, 1fr) auto; min-height: calc(100vh - 160px); min-width: 0; position: relative; }
.reader-shell > input { height: 0; opacity: 0; position: absolute; width: 0; }
.reader-header { align-items: center; border-bottom: 1px solid var(--orion-border); display: grid; gap: 20px; grid-template-columns: 1fr minmax(0, 2fr) 1fr; padding: 18px 24px; }
.reader-header { grid-row: 1; }
.reader-back { color: var(--orion-primary); font-size: .88rem; text-decoration: none; }
.reader-header h1 { color: var(--orion-primary); font-size: 1rem; margin: 0; overflow: hidden; text-align: center; text-overflow: ellipsis; white-space: nowrap; }
.reader-header-progress { align-items: center; display: flex; gap: 10px; justify-content: flex-end; }
.reader-header-progress-label { color: var(--orion-muted); font-size: .75rem; min-width: 32px; text-align: right; }
.reader-progress-track { background: var(--orion-border); border-radius: 99px; height: 5px; overflow: hidden; width: min(120px, 100%); }
.reader-progress-bar { background: var(--orion-accent); border-radius: inherit; display: block; height: 100%; transition: width .3s ease; }
.annotation-menu { background: var(--orion-primary); box-shadow: var(--orion-shadow); display: flex; gap: 4px; padding: 6px; position: fixed; right: 24px; top: 76px; z-index: 10; }
.annotation-menu[hidden] { display: none; }
.annotation-menu button { background: transparent; border: 0; color: #fff; cursor: pointer; font: inherit; font-size: .78rem; padding: 7px 9px; }
.annotation-dialog { align-items: center; background: rgba(16, 44, 70, .28); display: flex; inset: 0; justify-content: center; position: absolute; z-index: 30; }
.annotation-dialog[hidden] { display: none; }
.annotation-dialog-panel { background: var(--orion-surface); box-shadow: var(--orion-shadow); max-width: 460px; padding: 26px; width: calc(100% - 40px); }
.annotation-dialog-panel h2 { color: var(--orion-primary); font-size: 1.25rem; margin: 0 0 18px; }
.annotation-dialog-panel label { color: var(--orion-secondary); display: block; font-size: .8rem; font-weight: 600; margin-bottom: 7px; }
.annotation-dialog-panel textarea { border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; padding: 10px; resize: vertical; width: 100%; }
.annotation-dialog-panel input[type="text"] { border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; margin-bottom: 12px; padding: 9px 10px; width: 100%; }
.annotation-dialog-panel textarea:focus { border-color: var(--orion-accent); outline: 2px solid rgba(226, 168, 75, .2); }
.annotation-dialog-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.reader-annotations { background: var(--orion-surface); box-shadow: -12px 0 40px rgba(16, 44, 70, .16); height: 100%; max-width: 380px; overflow-y: auto; padding: 24px; position: absolute; right: 0; top: 0; width: min(88%, 380px); z-index: 15; }
.reader-annotations[hidden] { display: none; }
.reader-annotations-header { align-items: center; border-bottom: 1px solid var(--orion-border); display: flex; justify-content: space-between; padding-bottom: 16px; }
.reader-annotations-header h2 { color: var(--orion-primary); font-size: 1.35rem; margin: 0; }
.reader-panel-close { background: transparent; border: 0; color: var(--orion-primary); cursor: pointer; font-size: 1.8rem; line-height: 1; padding: 2px 8px; }
.reader-annotations-list { display: grid; gap: 16px; padding-top: 20px; }
.reader-annotations-empty { color: var(--orion-muted); font-size: .85rem; line-height: 1.6; }
.reader-notebook { background: var(--orion-surface); bottom: 61px; box-shadow: -12px 0 40px rgba(16, 44, 70, .16); max-width: 420px; overflow-y: auto; padding: 24px; position: absolute; right: 0; top: 0; width: min(92%, 420px); z-index: 16; }
.reader-notebook[hidden] { display: none; }
.reader-notebook-header { align-items: center; border-bottom: 1px solid var(--orion-border); display: flex; justify-content: space-between; padding-bottom: 16px; }
.reader-notebook-header h2 { color: var(--orion-primary); font-size: 1.35rem; margin: 0; }
.reader-notebook-header-actions { align-items: center; display: flex; gap: 8px; }
.reader-notebook-new { background: var(--orion-primary); border: 0; color: #fff; cursor: pointer; font: inherit; font-size: .72rem; padding: 8px 10px; }
.reader-notebook-toolbar { padding: 16px 0 4px; }
.reader-notebook-toolbar label { color: var(--orion-secondary); display: block; font-size: .72rem; font-weight: 600; margin-bottom: 6px; }
.reader-notebook-toolbar select { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; padding: 9px; width: 100%; }
.reader-notebook-form { display: grid; gap: 7px; }
.reader-notebook-form label { color: var(--orion-secondary); font-size: .78rem; font-weight: 600; margin-top: 8px; }
.reader-notebook-form input, .reader-notebook-form textarea { border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; padding: 9px; width: 100%; }
.reader-notebook-form textarea { line-height: 1.5; resize: vertical; }
.reader-notebook-actions { display: flex; gap: 8px; margin-top: 14px; }
.reader-notebook-actions .button { font-size: .78rem; padding: 9px 12px; }
.reader-shell.notebook-open .reader-content { padding-right: min(460px, 42%); }
.reader-annotation-card { border-bottom: 1px solid var(--orion-border); padding-bottom: 16px; }
.reader-annotation-jump { background: transparent; border: 0; color: var(--orion-primary); cursor: pointer; display: block; font-family: 'Libre Baskerville', serif; font-size: .9rem; line-height: 1.6; padding: 0; text-align: left; width: 100%; }
.reader-annotation-jump:hover, .reader-annotation-jump:focus-visible { color: var(--orion-secondary); text-decoration: underline; text-underline-offset: 3px; }
.annotation-fragment-link { color: inherit; display: block; text-decoration: none; }
.annotation-fragment-link blockquote { color: var(--orion-primary); }
.annotation-fragment-link:hover blockquote, .annotation-fragment-link:focus-visible blockquote { color: var(--orion-secondary); text-decoration: underline; text-underline-offset: 3px; }
.reader-annotation-meta, .reader-annotation-note { color: var(--orion-muted); font-size: .75rem; margin: 10px 0 0; }
.reader-annotation-note { border-left: 2px solid var(--orion-accent); padding-left: 10px; }
.reader-annotation-tags-row { align-items: center; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.reader-annotation-tags { color: var(--orion-secondary); font-size: .72rem; overflow-wrap: anywhere; }
.reader-annotation-tag-edit { background: transparent; border: 0; color: var(--orion-muted); cursor: pointer; font: inherit; font-size: .68rem; padding: 3px 0; text-decoration: underline; text-underline-offset: 2px; }
.annotation-tags { color: var(--orion-secondary); font-size: .75rem; margin: 8px 0; }
.reader-annotation-toolbar { display: flex; justify-content: flex-end; margin-top: 8px; }
.reader-annotation-color { align-items: center; cursor: pointer; display: inline-flex; }
.reader-annotation-color input { appearance: none; background: transparent; border: 1px solid var(--orion-border); cursor: pointer; height: 28px; padding: 3px; width: 34px; }
.reader-annotation-color input::-webkit-color-swatch-wrapper { padding: 0; }
.reader-annotation-color input::-webkit-color-swatch { border: 0; }
.reader-annotation-color input::-moz-color-swatch { border: 0; }
.reading-session-summary { align-items: center; background: rgba(16, 44, 70, .28); display: flex; inset: 0; justify-content: center; position: absolute; z-index: 25; }
.reading-session-summary[hidden] { display: none; }
.reading-session-summary-panel { background: var(--orion-surface); box-shadow: var(--orion-shadow); max-width: 420px; padding: 32px; text-align: center; width: calc(100% - 40px); }
.reading-session-summary-panel h2 { color: var(--orion-primary); font-size: 1.4rem; margin: 0 0 16px; }
.reading-session-summary-panel p { color: var(--orion-muted); line-height: 1.7; white-space: pre-line; }
.reader-session-type { align-items: center; color: var(--orion-muted); display: inline-flex; font-size: .72rem; gap: 5px; }
.reader-session-type select { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-primary); font: inherit; font-size: .72rem; padding: 5px 3px; }
.pomodoro { align-items: center; background: rgba(243, 240, 233, .55); border-bottom: 1px solid var(--orion-border); display: flex; gap: 18px; grid-column: 1; grid-row: 2; justify-content: center; padding: 10px 18px; }
.pomodoro[hidden] { display: none; }
.pomodoro-header { align-items: center; display: flex; gap: 8px; }
.pomodoro-header h2 { color: var(--orion-primary); font-size: 1rem; margin: 0; }
.pomodoro-header span, .pomodoro-settings { color: var(--orion-muted); font-size: .72rem; }
.pomodoro > strong { color: var(--orion-primary); display: block; font-size: 1.35rem; min-width: 70px; text-align: center; }
.pomodoro-actions { display: flex; gap: 5px; }
.pomodoro-actions .button { font-size: .7rem; padding: 7px 9px; }
.pomodoro-settings { align-items: center; display: inline-flex; gap: 5px; }
.pomodoro-settings input { border: 1px solid var(--orion-border); width: 48px; }
.study-sessions-page h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 40px; }
.study-stat-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); max-width: 900px; }
.study-stat { background: var(--orion-surface); box-shadow: var(--orion-shadow); padding: 20px; }
.study-stat strong, .study-stat span { display: block; }
.study-stat strong { color: var(--orion-primary); font-family: 'Libre Baskerville', serif; font-size: 1.35rem; }
.study-stat span { color: var(--orion-muted); font-size: .75rem; margin-top: 8px; }
.study-history { margin-top: 46px; max-width: 900px; }
.study-periods { margin-top: 42px; max-width: 900px; }
.study-periods h2 { color: var(--orion-primary); font-size: 1.3rem; }
.study-period-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-top: 18px; }
.study-period { background: rgba(70, 101, 121, .08); padding: 16px 18px; }
.study-period strong, .study-period span { display: block; }
.study-period strong { color: var(--orion-primary); }
.study-period span { color: var(--orion-muted); font-size: .78rem; margin-top: 6px; }
.study-distribution { border-block: 1px solid var(--orion-border); margin-top: 34px; max-width: 900px; padding: 20px 0; }
.study-distribution-heading { align-items: baseline; display: flex; gap: 12px; justify-content: space-between; }
.study-distribution-heading h2 { color: var(--orion-primary); font-size: 1.2rem; margin: 0; }
.study-distribution-heading > span { color: var(--orion-muted); font-size: .72rem; }
.study-daily-chart { align-items: end; display: grid; gap: 8px; grid-template-columns: repeat(14, minmax(0, 1fr)); height: 150px; margin-top: 18px; }
.study-daily-column { align-items: center; display: grid; grid-template-rows: minmax(0, 1fr) auto; height: 100%; min-width: 0; }
.study-daily-bar { align-self: end; background: var(--orion-secondary); height: var(--bar-height); max-height: 100%; min-height: 3px; width: min(24px, 100%); }
.study-daily-bar.is-empty { background: var(--orion-border); height: 3px; min-height: 3px; }
.study-daily-label { color: var(--orion-muted); font-size: .62rem; margin-top: 8px; white-space: nowrap; }
.study-chart-empty { color: var(--orion-muted); font-size: .78rem; margin: 12px 0 0; }
.study-history h2 { color: var(--orion-primary); font-size: 1.3rem; }
.study-session-list { display: grid; gap: 10px; margin-top: 18px; }
.study-session-row { align-items: center; background: var(--orion-surface); display: flex; justify-content: space-between; padding: 16px 18px; }
.study-session-row div { display: grid; gap: 5px; }
.study-session-row div:last-child { text-align: right; }
.study-session-row span { color: var(--orion-muted); font-size: .75rem; }
.study-notebook-link { color: var(--orion-secondary); font-size: .75rem; text-underline-offset: 3px; width: fit-content; }
.review-page h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 32px; }
.review-book-filter { align-items: center; display: grid; gap: 8px 10px; grid-template-columns: auto minmax(0, 1fr) auto minmax(0, 1fr) max-content; margin: 0 0 20px; max-width: 900px; }
.review-book-filter label { color: var(--orion-secondary); font-size: .78rem; font-weight: 600; }
.review-book-filter select { background: var(--orion-surface); border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; min-width: 0; padding: 9px 10px; }
.review-book-filter .button { font-size: .78rem; padding: 8px 11px; }
.review-filters { border-bottom: 1px solid var(--orion-border); display: flex; gap: 24px; margin-bottom: 32px; overflow-x: auto; }
.review-filters a { color: var(--orion-muted); font-size: .82rem; padding-bottom: 12px; text-decoration: none; white-space: nowrap; }
.review-filters a.active { border-bottom: 2px solid var(--orion-accent); color: var(--orion-primary); font-weight: 700; }
.review-books { display: grid; gap: 38px; max-width: 760px; }
.review-book-group h2 { border-bottom: 1px solid var(--orion-border); color: var(--orion-primary); font-size: 1.25rem; margin: 0 0 16px; padding-bottom: 10px; }
.review-list { display: grid; gap: 18px; max-width: 760px; }
.review-card { background: var(--orion-surface); box-shadow: var(--orion-shadow); padding: 22px; }
.review-card blockquote { color: var(--orion-primary); font-family: 'Libre Baskerville', serif; line-height: 1.7; margin: 0; }
.review-meta { color: var(--orion-muted); font-size: .75rem; margin: 14px 0; }
.review-meta-tags { color: var(--orion-secondary); }
.review-done { font-size: .78rem; padding: 9px 12px; }
.annotation-back { color: var(--orion-secondary); display: inline-block; font-size: .82rem; margin-bottom: 34px; text-decoration: none; }
.annotations-page h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 40px; }
.annotation-books { display: grid; gap: 42px; max-width: 760px; }
.annotation-book-group h2 { border-bottom: 1px solid var(--orion-border); color: var(--orion-primary); font-size: 1.25rem; margin: 0 0 18px; padding-bottom: 12px; }
.annotation-list { display: grid; gap: 18px; max-width: 760px; }
.annotation-card { background: var(--orion-surface); box-shadow: var(--orion-shadow); padding: 22px; }
.annotation-card blockquote { color: var(--orion-primary); font-family: 'Libre Baskerville', serif; line-height: 1.7; margin: 0; }
.annotation-meta, .annotation-note { color: var(--orion-muted); font-size: .78rem; margin: 14px 0 0; }
.annotation-note { border-left: 2px solid var(--orion-accent); padding-left: 12px; }
.annotation-card-footer { align-items: end; display: flex; gap: 16px; justify-content: space-between; }
.annotation-actions { display: flex; gap: 4px; margin-left: auto; }
.annotation-action { align-items: center; background: transparent; border: 0; color: var(--orion-secondary); cursor: pointer; display: inline-flex; font-size: 1.15rem; height: 34px; justify-content: center; padding: 4px 8px; width: 34px; }
.annotation-action:hover, .annotation-action:focus-visible { background: rgba(70, 101, 121, .1); color: var(--orion-primary); }
.annotation-action-delete { color: #a94442; }
.annotation-action-delete:hover, .annotation-action-delete:focus-visible { background: rgba(169, 68, 66, .1); color: #a94442; }
.notebook-page h1 { color: var(--orion-primary); font-size: clamp(2rem, 4vw, 3.2rem); margin: 14px 0 34px; }
.notebook-layout { align-items: start; display: grid; gap: 24px; grid-template-columns: 220px minmax(0, 760px); }
.notebook-pages { background: var(--orion-surface); box-shadow: var(--orion-shadow); display: grid; gap: 8px; padding: 18px; }
.notebook-pages h2 { color: var(--orion-primary); font-size: 1.1rem; margin: 0 0 8px; }
.notebook-pages .button { font-size: .75rem; padding: 8px; }
.notebook-page-filters { border-bottom: 1px solid var(--orion-border); display: flex; gap: 12px; margin-bottom: 4px; }
.notebook-page-filters a { color: var(--orion-muted); font-size: .72rem; padding: 0 0 8px; text-decoration: none; }
.notebook-page-filters a.active { border-bottom: 2px solid var(--orion-accent); color: var(--orion-primary); font-weight: 700; }
.notebook-page-link { border-left: 2px solid transparent; color: var(--orion-secondary); font-size: .8rem; padding: 8px; text-decoration: none; }
.notebook-page-link small { color: var(--orion-muted); display: block; font-size: .67rem; margin-top: 3px; }
.notebook-page-link:hover { background: rgba(70, 101, 121, .08); border-left-color: var(--orion-accent); }
.cornell-sheet { background: var(--orion-surface); box-shadow: var(--orion-shadow); padding: 28px; }
.cornell-sheet label { color: var(--orion-secondary); display: block; font-size: .78rem; font-weight: 600; margin: 0 0 7px; }
.cornell-sheet input, .cornell-sheet textarea { border: 1px solid var(--orion-border); color: var(--orion-text); font: inherit; margin-bottom: 18px; padding: 10px; width: 100%; }
.cornell-sheet textarea { line-height: 1.6; resize: vertical; }
.cornell-grid { display: grid; gap: 18px; grid-template-columns: minmax(150px, .8fr) minmax(0, 1.5fr); }
.notebook-actions { display: flex; gap: 10px; }
.notebook-actions .button { font-size: .8rem; }
.notebook-practice[hidden], .notebook-layout[hidden] { display: none; }
.notebook-practice { background: var(--orion-surface); box-shadow: var(--orion-shadow); margin: 28px auto; max-width: 900px; padding: 28px; }
.notebook-practice-header { align-items: center; border-bottom: 1px solid var(--orion-border); display: flex; gap: 18px; justify-content: space-between; padding-bottom: 18px; }
.notebook-practice-header h2 { color: var(--orion-primary); font-size: 1.3rem; margin: 8px 0 0; }
.notebook-practice h3 { color: var(--orion-secondary); font-size: .82rem; margin: 0 0 10px; }
.notebook-practice-cues, .notebook-practice-answer section { line-height: 1.7; overflow-wrap: anywhere; white-space: normal; }
.notebook-practice-cues { font-family: 'Libre Baskerville', serif; font-size: 1rem; padding: 24px 0; }
.notebook-practice-answer { border-top: 1px solid var(--orion-border); display: grid; gap: 20px; margin-bottom: 22px; padding-top: 20px; }
.notebook-practice-answer[hidden] { display: none; }
.notebook-practice-answer section { color: var(--orion-text); font-size: .9rem; }
.notebook-practice-answer h3 { font-family: 'DM Sans', sans-serif; }
.notebook-practice > .button { font-size: .8rem; padding: 9px 12px; }
.reader-content { grid-column: 1; grid-row: 3; min-height: 0; min-width: 0; overflow: hidden; padding: 30px 8%; }
.reader-content > .epub-container { max-width: 100%; min-width: 0; }
.reader-loading { align-items: center; color: var(--orion-muted); display: flex; flex-direction: column; gap: 16px; height: 100%; justify-content: center; min-height: 0; }
.reader-spinner { animation: reader-spin 1s linear infinite; border: 3px solid rgba(226, 168, 75, .25); border-radius: 50%; border-top-color: var(--orion-accent); height: 34px; width: 34px; }
@keyframes reader-spin { to { transform: rotate(360deg); } }
.reader-controls { align-items: center; border-top: 1px solid var(--orion-border); display: flex; gap: 10px; grid-column: 1; grid-row: 4; justify-content: center; min-width: 0; padding: 12px 20px; }
.reader-control { align-items: center; background: transparent; border: 0; color: var(--orion-primary); cursor: pointer; display: inline-flex; font: inherit; gap: 8px; justify-content: center; min-height: 36px; min-width: 36px; padding: 6px 10px; }
.reader-control svg, .reader-back svg, .button svg { height: 16px; stroke-width: 1.8; width: 16px; }
.reader-control:hover, .reader-control:focus-visible { background: rgba(70, 101, 121, .1); }
.reader-font-control input { accent-color: var(--orion-accent); width: 90px; }
.site-footer { color: var(--orion-muted); font-size: .75rem; padding: 0 32px 28px; text-align: center; }
.admin-invitations-heading { align-items: end; display: flex; justify-content: space-between; margin: 48px 0 10px; }
.invitation-compose { align-items: end; border-block: 1px solid var(--orion-border); display: grid; gap: 32px; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); margin-top: 32px; max-width: 900px; padding: 25px 0 28px; }
.invitation-compose-copy h2 { color: var(--orion-primary); font-size: 1.35rem; margin: 9px 0; }
.invitation-compose-copy > p:last-child { color: var(--orion-muted); font-size: .86rem; line-height: 1.65; margin: 0; max-width: 58ch; }
.invitation-compose-form { margin-top: 0; }
.invitation-compose-form input[type="email"] { background: var(--orion-surface); border: 1px solid var(--orion-border); padding: 11px 12px; }
.invitation-compose-form .button { margin-top: 4px; }
.invitation-expiry-note { color: var(--orion-muted); font-size: .74rem; margin: 2px 0 0; }
.admin-invitations-heading h2 { color: var(--orion-primary); font-size: 1.45rem; margin: 0; }
.admin-invitations-heading p { color: var(--orion-muted); font-size: .78rem; margin: 6px 0 0; }
.admin-invitations-table-wrap { border-top: 2px solid var(--orion-primary); max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain; }
.admin-invitations-table { border-collapse: collapse; min-width: 1320px; table-layout: fixed; width: 100%; }
.admin-invitations-table .invitation-col-created { width: 11%; }
.admin-invitations-table .invitation-col-recipient { width: 17%; }
.admin-invitations-table .invitation-col-status { width: 9%; }
.admin-invitations-table .invitation-col-sent { width: 11%; }
.admin-invitations-table .invitation-col-expiry { width: 12%; }
.admin-invitations-table .invitation-col-creator { width: 10%; }
.admin-invitations-table .invitation-col-used { width: 10%; }
.admin-invitations-table .invitation-col-revoked { width: 11%; }
.admin-invitations-table .invitation-col-action { width: 9%; }
.admin-invitations-table th { background: rgba(16, 44, 70, .055); color: var(--orion-secondary); font-size: .69rem; font-weight: 700; letter-spacing: .04em; padding: 12px; text-align: left; }
.admin-invitations-table td { border-bottom: 1px solid var(--orion-border); color: var(--orion-text); font-size: .8rem; line-height: 1.45; overflow-wrap: anywhere; padding: 15px 12px; text-align: left; vertical-align: middle; }
.admin-invitations-table tbody tr:hover { background: rgba(255, 253, 248, .72); }
.admin-invitations-table time { color: var(--orion-secondary); font-variant-numeric: tabular-nums; white-space: nowrap; }
.invitation-status { background: rgba(70, 101, 121, .1); color: var(--orion-secondary); display: inline-block; font-size: .7rem; font-weight: 700; padding: 5px 8px; white-space: nowrap; }
.invitation-status-pending { background: rgba(226, 168, 75, .18); color: #795719; }
.invitation-status-used { background: rgba(59, 109, 80, .12); color: #315b42; }
.invitation-status-revoked, .invitation-status-expired { background: rgba(169, 68, 66, .1); color: #8b3d3b; }
.admin-invitations-table form { margin: 0; }
.admin-invitations-table .button-danger { background: rgba(169, 68, 66, .08); border: 1px solid rgba(169, 68, 66, .22); font-size: .75rem; padding: 8px 10px; white-space: nowrap; }
.admin-books-section-title { color: var(--orion-primary); font-size: 1.4rem; margin: 28px 0 12px; }
.admin-books-table-wrap { border-top: 2px solid var(--orion-primary); max-width: 100%; overflow-x: auto; overscroll-behavior-x: contain; }
.admin-books-table { border-collapse: collapse; table-layout: fixed; width: 100%; }
.admin-submissions-table { min-width: 1040px; }
.admin-submissions-table th:nth-child(1) { width: 9%; }
.admin-submissions-table th:nth-child(2) { width: 19%; }
.admin-submissions-table th:nth-child(3) { width: 15%; }
.admin-submissions-table th:nth-child(4) { width: 34%; }
.admin-submissions-table th:nth-child(5) { width: 23%; }
.admin-published-table { min-width: 720px; }
.admin-published-table th:nth-child(1) { width: 38%; }
.admin-published-table th:nth-child(2) { width: 34%; }
.admin-published-table th:nth-child(3) { width: 14%; }
.admin-published-table th:nth-child(4) { width: 14%; }
.admin-books-table th { background: rgba(16, 44, 70, .055); color: var(--orion-secondary); font-size: .7rem; font-weight: 700; padding: 11px 12px; text-align: left; }
.admin-books-table td { border-bottom: 1px solid var(--orion-border); color: var(--orion-text); font-size: .8rem; line-height: 1.45; overflow-wrap: anywhere; padding: 12px; text-align: left; vertical-align: middle; }
.admin-books-table tbody tr:hover { background: rgba(255, 253, 248, .72); }
.admin-books-table form { margin: 0; }
.admin-books-table .button { font-size: .74rem; padding: 7px 10px; white-space: nowrap; }
.submission-cover { aspect-ratio: 2 / 3; border: 1px solid var(--orion-border); display: block; height: 88px; margin: 0; max-width: 60px; object-fit: contain; }
.admin-books-subline { color: var(--orion-muted); display: block; font-size: .73rem; margin-top: 4px; }
.admin-books-muted { color: var(--orion-muted); font-size: .75rem; }
.submission-declaration { color: var(--orion-secondary) !important; max-height: 7em; overflow-y: auto; }
.admin-submission-actions { display: grid; gap: 7px; justify-items: start; }
.admin-submission-actions input { background: var(--orion-surface); border: 1px solid var(--orion-border); font: inherit; font-size: .75rem; min-width: 0; padding: 7px 8px; width: 100%; }
.admin-submission-actions input:focus { border-color: var(--orion-accent); outline: 2px solid rgba(226, 168, 75, .2); }
.book-status { display: inline-block; font-size: .7rem; font-weight: 700; padding: 4px 7px; }
.book-status-approved { background: rgba(59, 109, 80, .12); color: #315b42; }
.book-status-inactive { background: rgba(169, 68, 66, .1); color: #8b3d3b; }
.admin-published-action { display: flex; justify-content: flex-start; }
@media (max-width: 720px) {
    .topbar { padding: 20px; }
    .topnav { gap: 12px; }
    .page-content { padding: 32px 20px 60px; }
    .auth-layout { display: flex; flex-direction: column; gap: 38px; margin-top: 3vh; }
    .auth-intro h1 { font-size: 2.6rem; }
    .auth-panel { padding: 28px 24px; width: 100%; }
    .library-heading { align-items: start; flex-direction: column; gap: 22px; }
    .book-detail-layout { grid-template-columns: 1fr; }
    .book-detail-cover { max-width: 220px; }
    .book-detail-meta { grid-template-columns: 1fr; }
    .study-daily-chart { gap: 3px; height: 120px; }
    .study-daily-label { font-size: .52rem; }
    .study-distribution-heading { align-items: start; flex-direction: column; gap: 5px; }
    .review-book-filter { grid-template-columns: auto minmax(0, 1fr); }
    .review-book-filter .button { grid-column: 2; justify-self: start; }
    .admin-upload-form, .member-upload-form { width: 100%; }
    .upload-file-row { align-items: stretch; flex-direction: column; }
    .upload-file-row .button, .member-upload-fields .button { width: 100%; }
    .admin-upload-form { grid-template-columns: minmax(0, 1fr); }
    .admin-upload-form .upload-file-row { align-items: flex-start; flex-direction: row; }
    .admin-upload-form .upload-file-row .button, .admin-upload-form > .button { justify-self: start; width: auto; }
    .admin-moderation-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .library-tabs { gap: 20px; margin-top: 40px; }
    .pomodoro { flex-wrap: wrap; gap: 8px 12px; justify-content: flex-start; padding: 10px 16px; }
    .pomodoro-settings { font-size: .68rem; }
    .notebook-layout { display: flex; flex-direction: column; }
    .notebook-pages, .cornell-sheet { width: 100%; }
    .cornell-grid { grid-template-columns: 1fr; }
    .admin-invitations-heading { margin-top: 36px; }
    .invitation-compose { gap: 8px; grid-template-columns: 1fr; margin-top: 24px; padding: 22px 0; }
    .admin-invitations-table-wrap { border-top: 0; overflow: visible; }
    .admin-invitations-table { display: block; min-width: 0; }
    .admin-invitations-table colgroup, .admin-invitations-table thead { display: none; }
    .admin-invitations-table tbody { display: grid; gap: 12px; }
    .admin-invitations-table tr { background: var(--orion-surface); border: 1px solid var(--orion-border); display: block; padding: 8px 14px; }
    .admin-invitations-table td { align-items: start; border-bottom: 1px solid rgba(217, 217, 208, .72); display: grid; gap: 12px; grid-template-columns: minmax(88px, .72fr) minmax(0, 1.28fr); padding: 10px 0; }
    .admin-invitations-table td::before { color: var(--orion-muted); content: attr(data-label); font-size: .69rem; font-weight: 700; }
    .admin-invitations-table td:last-child { border-bottom: 0; }
    .admin-invitations-table time { white-space: normal; }
    .admin-invitations-table .invitation-action-cell { align-items: center; }
    .admin-books-table-wrap { border-top: 0; overflow: visible; }
    .admin-books-table { display: block; min-width: 0; }
    .admin-books-table thead { display: none; }
    .admin-books-table tbody { display: grid; gap: 12px; }
    .admin-books-table tr { background: var(--orion-surface); border: 1px solid var(--orion-border); display: block; padding: 6px 14px; }
    .admin-books-table td { align-items: start; border-bottom: 1px solid rgba(217, 217, 208, .72); display: grid; gap: 12px; grid-template-columns: minmax(74px, .55fr) minmax(0, 1.45fr); padding: 10px 0; }
    .admin-books-table td::before { color: var(--orion-muted); content: attr(data-label); font-size: .69rem; font-weight: 700; }
    .admin-books-table td:last-child { border-bottom: 0; }
    .admin-submission-actions { align-items: start; }
    .submission-declaration { max-height: none; }
    .admin-submissions-table th:nth-child(n), .admin-published-table th:nth-child(n) { width: auto; }
}

/* ===== Lector en tablet y teléfono ===== */

.reader-control-label { display: none; }
.reader-sheet-grabber { display: none; }
.reader-more-toggle { display: none; }
/* !important vence el `[hidden] { display: none !important }` del reboot de Bootstrap. */
.reader-more-panel, .reader-more-panel[hidden] { display: contents !important; }
.nav-toggle { display: none; }
.nav-panel, .nav-panel[hidden] { align-items: center; display: flex !important; gap: 20px; }
.mobile-tabbar { display: none; }
.book-actions-secondary { display: grid; gap: 8px; }

@media (max-width: 1024px) {
    body { overscroll-behavior: none; }
    body:has(.reader-shell) { -webkit-tap-highlight-color: transparent; }
    body:has(.reader-shell) .topbar, body:has(.reader-shell) .site-footer { display: none; }
    body:has(.reader-shell) .page-content { max-width: none; padding: 0; }
    body:has(.reader-shell) .site-shell { background: var(--orion-surface); min-height: 0; }

    .reader-shell { box-shadow: none; height: 100dvh; margin: 0; min-height: 0; width: auto; }
    .reader-shell .reader-control, .reader-shell .reader-panel-close { touch-action: manipulation; user-select: none; }

    .reader-header { gap: 8px; grid-template-columns: auto minmax(0, 1fr) auto; padding: calc(9px + env(safe-area-inset-top)) 12px 9px; position: relative; }
    .reader-back { align-items: center; display: inline-flex; min-height: 44px; min-width: 44px; justify-content: center; }
    .reader-back span { display: none; }
    .reader-back svg { height: 22px; width: 22px; }
    .reader-header h1 { font-size: .95rem; text-align: center; }
    .reader-header-progress { gap: 0; }
    .reader-header-progress-label { font-size: .72rem; min-width: 34px; }
    .reader-progress-track { border-radius: 0; bottom: -1px; height: 3px; left: 0; position: absolute; right: 0; width: auto; }

    .reader-content { min-height: 0; padding: 6px 16px; }
    .reader-shell.notebook-open .reader-content { padding-right: 16px; }

    .reader-controls { gap: 8px; padding: 6px 10px calc(6px + env(safe-area-inset-bottom)); position: relative; }
    .reader-control { min-height: 48px; }
    .reader-control-page { flex: 1; min-height: 58px; }
    .reader-control-page svg { height: 30px; stroke-width: 2; width: 30px; }
    .reader-more-toggle { display: inline-flex; flex: 0 0 auto; min-height: 58px; min-width: 58px; }
    .reader-more-toggle svg { height: 24px; width: 24px; }
    .reader-more-toggle[aria-expanded="true"] { background: rgba(70, 101, 121, .12); }

    .reader-more-panel { background: var(--orion-surface); border-radius: 18px 18px 0 0; bottom: 100%; box-shadow: 0 -12px 40px rgba(16, 44, 70, .2); display: grid !important; gap: 6px; grid-template-columns: repeat(2, minmax(0, 1fr)); left: 0; padding: 6px 14px 16px; position: absolute; right: 0; z-index: 18; }
    .reader-more-panel[hidden] { display: none !important; }
    .reader-more-panel .reader-control { justify-content: flex-start; min-height: 52px; padding: 6px 12px; }
    .reader-more-panel .reader-control svg { height: 20px; width: 20px; }
    .reader-control-label { color: var(--orion-primary); display: inline; font-size: .82rem; }
    .reader-sheet-grabber { background: var(--orion-border); border-radius: 99px; display: block; grid-column: 1 / -1; height: 4px; justify-self: center; margin: 6px 0 8px; width: 42px; }
    .reader-more-panel .reader-font-control { grid-column: 1 / -1; }
    .reader-more-panel .reader-font-control input { flex: 1; min-width: 0; width: auto; }
    .reader-more-panel .reader-session-type { align-items: center; display: flex; gap: 8px; grid-column: 1 / -1; min-height: 52px; padding: 0 12px; }
    .reader-more-panel .reader-session-type select { flex: 1; font-size: 16px; min-height: 40px; }

    .reader-annotations, .reader-notebook { align-self: end; border-radius: 18px 18px 0 0; bottom: auto; box-shadow: 0 -12px 40px rgba(16, 44, 70, .2); grid-column: 1; grid-row: 3; height: auto; left: auto; max-height: 100%; max-width: none; overscroll-behavior: contain; padding: 18px 18px 20px; position: relative; right: auto; top: auto; width: auto; }
    .reader-shell:has(> .reader-annotations:not([hidden]))::after, .reader-shell:has(> .reader-notebook:not([hidden]))::after { background: rgba(16, 44, 70, .28); content: ''; grid-column: 1; grid-row: 3; z-index: 14; }
    .reader-annotations::before, .reader-notebook::before { background: var(--orion-border); border-radius: 99px; content: ''; display: block; height: 4px; margin: -6px auto 12px; width: 42px; }
    .reader-panel-close { align-items: center; display: inline-flex; justify-content: center; min-height: 44px; min-width: 44px; }
    .reader-notebook-new { min-height: 44px; }
    .reader-notebook-form input, .reader-notebook-form textarea, .reader-notebook-toolbar select { font-size: 16px; min-height: 44px; }
    .reader-notebook-actions .button { min-height: 44px; }

    .annotation-menu { bottom: calc(82px + env(safe-area-inset-bottom)); left: 50%; right: auto; top: auto; transform: translateX(-50%); }
    .annotation-menu button { min-height: 44px; min-width: 56px; }
    .annotation-dialog-panel textarea, .annotation-dialog-panel input[type="text"] { font-size: 16px; }
}

@media (min-width: 721px) and (max-width: 1024px) {
    .reader-content { padding-inline: clamp(16px, 7%, 72px); }
}

@media (max-width: 720px) {
    .reader-content { padding: 4px 12px; }
    .reader-shell.notebook-open .reader-content { padding-right: 12px; }
    .reader-header h1 { font-size: .88rem; }

    .topbar { padding: 14px 16px; position: relative; }
    .nav-toggle { align-items: center; background: transparent; border: 0; color: var(--orion-primary); cursor: pointer; display: inline-flex; justify-content: center; min-height: 44px; min-width: 44px; padding: 0; }
    .nav-toggle svg { height: 24px; width: 24px; }
    .nav-panel, .nav-panel[hidden] { background: var(--orion-surface); box-shadow: var(--orion-shadow); display: grid !important; gap: 0; left: 0; padding: 8px; position: absolute; right: 0; top: 100%; z-index: 30; }
    .nav-panel[hidden] { display: none !important; }
    .nav-panel > a, .nav-panel .user-menu-panel a { align-items: center; display: flex; font-size: .95rem; min-height: 48px; padding: 0 12px; text-decoration: none; }
    .nav-panel .user-menu { display: contents; }
    .nav-panel .user-chip { display: none; }
    .nav-panel .user-menu-panel { border-top: 1px solid var(--orion-border); box-shadow: none; display: grid; margin-top: 6px; min-width: 0; padding: 6px 0 0; position: static; }
    .nav-panel form { padding: 6px 12px; }
    .nav-panel .button-quiet { justify-content: flex-start; min-height: 44px; width: 100%; }

    .mobile-tabbar { background: var(--orion-surface); border-top: 1px solid var(--orion-border); bottom: 0; display: grid; grid-template-columns: repeat(4, 1fr); left: 0; padding-bottom: env(safe-area-inset-bottom); position: fixed; right: 0; z-index: 25; }
    .mobile-tabbar a { align-items: center; color: var(--orion-muted); display: flex; flex-direction: column; font-size: .64rem; gap: 3px; justify-content: center; min-height: 56px; text-decoration: none; }
    .mobile-tabbar svg { height: 21px; stroke-width: 1.8; width: 21px; }
    body:has(.reader-shell) .mobile-tabbar { display: none; }
    .page-content { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
    .site-footer { display: none; }

    .book-grid { gap: 14px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin-top: 28px; }
    .book-cover { height: 170px; max-height: 170px; }
    .book-card-body { padding: 14px; }
    .book-card h2 { font-size: 1rem; }
    .book-actions-secondary { grid-template-columns: 1fr 1fr; }
    .book-actions-secondary .button { gap: 0; min-height: 44px; padding: 9px; }
    .book-actions-secondary .button span { display: none; }
    .book-open { font-size: .84rem; min-height: 44px; }

    .pomodoro { background: var(--orion-surface); border: 1px solid var(--orion-border); border-radius: 99px; box-shadow: var(--orion-shadow); flex-wrap: nowrap; gap: 8px; margin: 6px 12px 0; padding: 5px 12px; width: fit-content; }
    .pomodoro-header h2, .pomodoro-header span, .pomodoro-settings { display: none; }
    .pomodoro > strong { font-size: 1.05rem; min-width: 52px; }
    .pomodoro-actions .button { min-height: 36px; padding: 6px 10px; }

    input, select, textarea { font-size: 16px; }
    .library-tabs, .review-filters, .notebook-page-filters { -webkit-overflow-scrolling: touch; overflow-x: auto; scroll-snap-type: x proximity; }
    .library-tabs a, .review-filters a { scroll-snap-align: start; }
    .cornell-sheet input, .cornell-sheet textarea, .form-stack input, .profile-select { min-height: 44px; }
    .annotation-action { height: 44px; width: 44px; }
    body { -webkit-tap-highlight-color: transparent; }
    a, button, .button, summary { touch-action: manipulation; }
}