/* ============================================================
   Methoden-Bibliothek – Design System
   ============================================================ */

/* --- Custom Properties --- */
:root {
    --color-sidebar:    #0f0e0d;
    --color-bg:         #f5f2ed;
    --color-accent:     #c84b2f;
    --color-accent-hover: #b03f25;
    --color-card:       #faf8f5;
    --color-muted:      #8a8279;
    --color-border:     #d9d4cb;
    --color-text:       #1a1917;
    --color-text-light: #4a4540;

    --font-display:     'DM Serif Display', Georgia, serif;
    --font-mono:        'DM Mono', 'Courier New', monospace;

    --sidebar-width:    240px;
    --header-height:    56px;
    --radius:           8px;
    --radius-lg:        12px;
    --radius-xl:        16px;

    --shadow-sm:        0 1px 3px rgba(15,14,13,.06), 0 1px 2px rgba(15,14,13,.04);
    --shadow-md:        0 4px 12px rgba(15,14,13,.08), 0 2px 4px rgba(15,14,13,.04);
    --shadow-lg:        0 8px 32px rgba(15,14,13,.12), 0 4px 8px rgba(15,14,13,.06);

    --transition:       150ms cubic-bezier(.4,0,.2,1);
    --transition-slow:  250ms cubic-bezier(.4,0,.2,1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family:        var(--font-mono);
    background:         var(--color-bg);
    color:              var(--color-text);
    line-height:        1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; }
img { max-width: 100%; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* --- App Shell Layout --- */
.app-shell {
    display:   flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    position:   fixed;
    top:        0;
    left:       0;
    bottom:     0;
    width:      var(--sidebar-width);
    background: var(--color-sidebar);
    display:    flex;
    flex-direction: column;
    z-index:    100;
    transition: transform var(--transition-slow);
}

.sidebar-header {
    padding: 24px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.sidebar-logo {
    display:     flex;
    align-items: center;
    gap:         12px;
}

.sidebar-logo-icon {
    width:          36px;
    height:         36px;
    background:     var(--color-accent);
    border-radius:  8px;
    display:        flex;
    align-items:    center;
    justify-content: center;
    font-family:    var(--font-display);
    font-size:      18px;
    color:          #fff;
    flex-shrink:    0;
}

.sidebar-logo-title {
    font-family: var(--font-display);
    font-size:   16px;
    color:       #f5f2ed;
    line-height: 1.2;
}

.sidebar-logo-sub {
    font-size:  11px;
    color:      rgba(245,242,237,.4);
    letter-spacing: .04em;
}

/* Nav */
.sidebar-nav {
    flex:    1;
    padding: 12px 12px;
    display: flex;
    flex-direction: column;
    gap:     2px;
    overflow-y: auto;
}

.nav-item {
    display:     flex;
    align-items: center;
    gap:         10px;
    padding:     10px 12px;
    border-radius: var(--radius);
    text-decoration: none;
    font-size:   13px;
    font-weight: 400;
    color:       rgba(245,242,237,.55);
    transition:  all var(--transition);
    letter-spacing: .01em;
}

.nav-item:hover {
    background: rgba(255,255,255,.06);
    color:      rgba(245,242,237,.9);
}

.nav-item.active {
    background: rgba(200,75,47,.18);
    color:      #f0a898;
}

.nav-item svg { flex-shrink: 0; opacity: .8; }

/* Sidebar footer */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255,255,255,.06);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-footer-link {
    display:     flex;
    align-items: center;
    gap:         8px;
    padding:     8px 12px;
    border-radius: var(--radius);
    text-decoration: none;
    font-size:   12px;
    color:       rgba(245,242,237,.4);
    transition:  all var(--transition);
}

.sidebar-footer-link:hover {
    color:      rgba(245,242,237,.7);
    background: rgba(255,255,255,.06);
}

.sidebar-user {
    display:     flex;
    align-items: center;
    gap:         10px;
    padding:     10px 12px;
    border-radius: var(--radius);
}

.sidebar-user-avatar {
    width:           32px;
    height:          32px;
    border-radius:   50%;
    background:      rgba(200,75,47,.3);
    color:           #f0a898;
    display:         flex;
    align-items:     center;
    justify-content: center;
    font-size:       13px;
    font-weight:     500;
    flex-shrink:     0;
}

.sidebar-user-info { flex: 1; overflow: hidden; }

.sidebar-user-name {
    font-size:     12px;
    color:         rgba(245,242,237,.7);
    overflow:      hidden;
    text-overflow: ellipsis;
    white-space:   nowrap;
}

.sidebar-user-method {
    font-size:  10px;
    color:      rgba(245,242,237,.3);
    margin-top: 1px;
}

.sidebar-logout-btn {
    background: none;
    border:     none;
    color:      rgba(245,242,237,.3);
    padding:    4px;
    border-radius: 4px;
    transition: all var(--transition);
    display:    flex;
    align-items: center;
    flex-shrink: 0;
}

.sidebar-logout-btn:hover {
    color:      rgba(245,242,237,.7);
    background: rgba(255,255,255,.08);
}

/* --- Mobile header --- */
.mobile-header {
    display:     none;
    position:    fixed;
    top:         0;
    left:        0;
    right:       0;
    height:      var(--header-height);
    background:  var(--color-sidebar);
    z-index:     90;
    align-items: center;
    justify-content: space-between;
    padding:     0 16px;
    color:       rgba(245,242,237,.8);
}

.mobile-title {
    font-family: var(--font-display);
    font-size:   17px;
    color:       #f5f2ed;
}

.mobile-menu-btn {
    background: none;
    border:     none;
    color:      rgba(245,242,237,.7);
    display:    flex;
    align-items: center;
    padding:    8px;
    border-radius: var(--radius);
}

.sidebar-overlay {
    display:  none;
    position: fixed;
    inset:    0;
    background: rgba(0,0,0,.4);
    z-index:  95;
    backdrop-filter: blur(2px);
}

/* --- Main Content --- */
.main-content {
    flex:       1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding:    0;
}

#view-container {
    padding: 40px;
    max-width: 1100px;
}

/* --- Page Header --- */
.page-header {
    margin-bottom: 32px;
}

.page-header-row {
    display:     flex;
    align-items: flex-start;
    justify-content: space-between;
    gap:         16px;
    flex-wrap:   wrap;
}

.page-title {
    font-family: var(--font-display);
    font-size:   32px;
    color:       var(--color-text);
    letter-spacing: -.5px;
    line-height: 1.2;
}

.page-subtitle {
    font-size:  14px;
    color:      var(--color-muted);
    margin-top: 6px;
}

/* --- Buttons --- */
.btn {
    display:     inline-flex;
    align-items: center;
    gap:         8px;
    padding:     10px 18px;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size:   13px;
    font-weight: 500;
    border:      none;
    cursor:      pointer;
    text-decoration: none;
    transition:  all var(--transition);
    white-space: nowrap;
    letter-spacing: .01em;
}

.btn:disabled {
    opacity: .5;
    cursor:  not-allowed;
    transform: none !important;
}

.btn-primary {
    background: var(--color-accent);
    color:      #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover);
    transform:  translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-text);
    color:      #fff;
}

.btn-secondary:hover:not(:disabled) {
    background: #333;
    transform:  translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color:      var(--color-text-light);
    border:     1px solid var(--color-border);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-card);
    border-color: #bbb;
}

.btn-danger {
    background: #dc2626;
    color:      #fff;
}

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

.btn-sm {
    padding:   6px 12px;
    font-size: 12px;
}

/* --- Form Elements --- */
.form-group { margin-bottom: 20px; }

.form-label {
    display:     block;
    font-size:   11px;
    font-weight: 500;
    color:       var(--color-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
    width:         100%;
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius);
    padding:       10px 14px;
    font-family:   var(--font-mono);
    font-size:     14px;
    color:         var(--color-text);
    transition:    border-color var(--transition), box-shadow var(--transition);
    outline:       none;
    appearance:    none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-accent);
    box-shadow:   0 0 0 3px rgba(200,75,47,.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-muted);
    opacity: .7;
}

.form-textarea {
    resize:     vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-hint {
    font-size:  12px;
    color:      var(--color-muted);
    margin-top: 5px;
}

/* --- Cards --- */
.card-grid {
    display:               grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap:                   16px;
}

.method-card {
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding:       20px;
    cursor:        pointer;
    transition:    all var(--transition);
    display:       flex;
    flex-direction: column;
    gap:           12px;
    position:      relative;
    overflow:      hidden;
}

.method-card::before {
    content:  '';
    position: absolute;
    top:      0;
    left:     0;
    right:    0;
    height:   3px;
    background: var(--color-accent);
    opacity:  0;
    transition: opacity var(--transition);
}

.method-card:hover {
    border-color: #c5bfb7;
    box-shadow:   var(--shadow-md);
    transform:    translateY(-2px);
}

.method-card:hover::before {
    opacity: 1;
}

.method-card-header {
    display:     flex;
    align-items: flex-start;
    gap:         10px;
}

.method-card-title {
    font-family: var(--font-display);
    font-size:   18px;
    color:       var(--color-text);
    line-height: 1.3;
    flex:        1;
}

.method-card-category {
    font-size:     10px;
    font-weight:   500;
    color:         var(--color-accent);
    text-transform: uppercase;
    letter-spacing: .08em;
    background:    rgba(200,75,47,.08);
    border:        1px solid rgba(200,75,47,.15);
    border-radius: 20px;
    padding:       3px 8px;
    white-space:   nowrap;
    flex-shrink:   0;
}

.method-card-summary {
    font-size:   13px;
    color:       var(--color-text-light);
    line-height: 1.6;
    display:     -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow:    hidden;
}

.method-card-tags {
    display:   flex;
    flex-wrap: wrap;
    gap:       5px;
    margin-top: auto;
}

.tag {
    font-size:     11px;
    color:         var(--color-muted);
    background:    var(--color-bg);
    border:        1px solid var(--color-border);
    border-radius: 20px;
    padding:       2px 8px;
}

/* --- Method Detail --- */
.method-detail {
    max-width: 720px;
}

.method-detail-back {
    display:     inline-flex;
    align-items: center;
    gap:         6px;
    color:       var(--color-muted);
    font-size:   13px;
    text-decoration: none;
    cursor:      pointer;
    margin-bottom: 24px;
    transition:  color var(--transition);
}

.method-detail-back:hover { color: var(--color-text); }

.method-detail-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom:  1px solid var(--color-border);
}

.method-detail-title {
    font-family:   var(--font-display);
    font-size:     40px;
    color:         var(--color-text);
    letter-spacing: -.5px;
    line-height:   1.15;
    margin-bottom: 12px;
}

.method-detail-meta {
    display:   flex;
    gap:       12px;
    flex-wrap: wrap;
    align-items: center;
}

.method-detail-section {
    margin-bottom: 28px;
}

.method-detail-section-label {
    font-size:     11px;
    font-weight:   500;
    color:         var(--color-muted);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 10px;
}

.method-detail-text {
    font-size:   15px;
    color:       var(--color-text);
    line-height: 1.7;
}

.steps-list {
    list-style: none;
    counter-reset: steps;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.steps-list li {
    display:     flex;
    align-items: flex-start;
    gap:         14px;
    counter-increment: steps;
    font-size:   14px;
    line-height: 1.6;
    color:       var(--color-text);
}

.steps-list li::before {
    content:         counter(steps);
    min-width:       26px;
    height:          26px;
    background:      var(--color-accent);
    color:           #fff;
    border-radius:   50%;
    display:         flex;
    align-items:     center;
    justify-content: center;
    font-size:       12px;
    font-weight:     500;
    flex-shrink:     0;
    margin-top:      2px;
}

.info-box {
    background:    var(--color-bg);
    border:        1px solid var(--color-border);
    border-radius: var(--radius);
    padding:       14px 16px;
    font-size:     14px;
    color:         var(--color-text-light);
    line-height:   1.6;
}

.info-box.warning {
    background:  rgba(200,75,47,.05);
    border-color: rgba(200,75,47,.2);
    color:        var(--color-accent-hover);
}

.method-detail-actions {
    display:   flex;
    gap:       8px;
    flex-wrap: wrap;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

/* --- Search & Filter bar --- */
.library-controls {
    display:   flex;
    gap:       12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    align-items: center;
}

.search-wrap {
    position: relative;
    flex:     1;
    min-width: 200px;
}

.search-wrap svg {
    position: absolute;
    left:     12px;
    top:      50%;
    transform: translateY(-50%);
    color:    var(--color-muted);
    pointer-events: none;
}

.search-input {
    width:         100%;
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius);
    padding:       10px 14px 10px 38px;
    font-family:   var(--font-mono);
    font-size:     13px;
    color:         var(--color-text);
    transition:    border-color var(--transition), box-shadow var(--transition);
    outline:       none;
}

.search-input:focus {
    border-color: var(--color-accent);
    box-shadow:   0 0 0 3px rgba(200,75,47,.1);
}

.filter-tabs {
    display:  flex;
    gap:      6px;
    flex-wrap: wrap;
}

.filter-tab {
    padding:       6px 14px;
    border-radius: 20px;
    font-size:     12px;
    font-weight:   400;
    border:        1px solid var(--color-border);
    background:    var(--color-card);
    color:         var(--color-muted);
    cursor:        pointer;
    transition:    all var(--transition);
}

.filter-tab:hover {
    border-color: #bbb;
    color:        var(--color-text);
}

.filter-tab.active {
    background:    var(--color-text);
    border-color:  var(--color-text);
    color:         #fff;
}

/* --- KI / Auskunft --- */
.auskunft-form {
    max-width: 680px;
}

.ki-result {
    max-width: 680px;
    margin-top: 32px;
}

.ki-result-header {
    display:       flex;
    align-items:   center;
    gap:           10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom:  1px solid var(--color-border);
}

.ki-badge {
    font-size:     10px;
    font-weight:   500;
    background:    rgba(200,75,47,.1);
    color:         var(--color-accent);
    border:        1px solid rgba(200,75,47,.2);
    border-radius: 20px;
    padding:       3px 10px;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.ki-gesamtkontext {
    font-size:   14px;
    color:       var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style:  italic;
    padding:     16px;
    background:  var(--color-card);
    border:      1px solid var(--color-border);
    border-radius: var(--radius);
    border-left: 3px solid var(--color-accent);
}

.empfehlung {
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding:       24px;
    margin-bottom: 16px;
}

.empfehlung-number {
    font-size:     11px;
    font-weight:   500;
    color:         var(--color-accent);
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 8px;
}

.empfehlung-title {
    font-family:   var(--font-display);
    font-size:     22px;
    color:         var(--color-text);
    margin-bottom: 12px;
    cursor:        pointer;
}

.empfehlung-title:hover { color: var(--color-accent); }

.empfehlung-begruendung {
    font-size:     14px;
    color:         var(--color-text);
    line-height:   1.7;
    margin-bottom: 12px;
}

.empfehlung-aspekte {
    font-size:     13px;
    color:         var(--color-text-light);
    line-height:   1.6;
    padding:       12px 14px;
    background:    var(--color-bg);
    border-radius: var(--radius);
    border:        1px solid var(--color-border);
    margin-bottom: 12px;
}

.empfehlung-aspekte strong {
    display:      block;
    font-size:    10px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color:        var(--color-muted);
    margin-bottom: 6px;
}

.empfehlung-weniger {
    font-size:  12px;
    color:      var(--color-muted);
    font-style: italic;
    margin-top: 8px;
}

/* --- Loading states --- */
.loading-overlay {
    display:        flex;
    flex-direction: column;
    align-items:    center;
    justify-content: center;
    padding:        60px 24px;
    gap:            16px;
    color:          var(--color-muted);
    font-size:      14px;
}

.spinner {
    width:         36px;
    height:        36px;
    border:        3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation:     spin .8s linear infinite;
}

.spinner-sm {
    width:         18px;
    height:        18px;
    border:        2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation:     spin .7s linear infinite;
    display:       inline-block;
}

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

.loading-status {
    font-size:  13px;
    color:      var(--color-muted);
    text-align: center;
}

/* --- Empty states --- */
.empty-state {
    text-align:  center;
    padding:     60px 24px;
    color:       var(--color-muted);
}

.empty-state-icon {
    font-size:     48px;
    margin-bottom: 16px;
    opacity:       .4;
}

.empty-state h3 {
    font-family:   var(--font-display);
    font-size:     20px;
    color:         var(--color-text-light);
    margin-bottom: 8px;
}

.empty-state p {
    font-size:   14px;
    line-height: 1.6;
    max-width:   400px;
    margin:      0 auto 20px;
}

/* --- Error states --- */
.error-banner {
    background:    rgba(220,38,38,.08);
    border:        1px solid rgba(220,38,38,.2);
    border-radius: var(--radius);
    padding:       14px 16px;
    font-size:     14px;
    color:         #b91c1c;
    margin-bottom: 20px;
    display:       flex;
    gap:           10px;
    align-items:   flex-start;
}

/* --- Add/Edit Form --- */
.add-form-card {
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding:       32px;
    max-width:     680px;
}

.add-form-section {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom:  1px solid var(--color-border);
}

.add-form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.add-form-section-title {
    font-size:     13px;
    font-weight:   500;
    color:         var(--color-text);
    margin-bottom: 16px;
    display:       flex;
    align-items:   center;
    gap:           8px;
}

.add-form-row {
    display:               grid;
    grid-template-columns: 1fr 1fr;
    gap:                   16px;
}

/* Ki preview area */
.ki-preview {
    background:    var(--color-bg);
    border:        1px solid var(--color-border);
    border-radius: var(--radius);
    padding:       20px;
    margin-top:    16px;
}

.ki-preview-badge {
    font-size:     10px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color:         var(--color-accent);
    font-weight:   500;
    margin-bottom: 12px;
    display:       flex;
    align-items:   center;
    gap:           6px;
}

/* Steps editor */
.steps-editor {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.step-row {
    display:     flex;
    align-items: center;
    gap:         8px;
}

.step-number {
    min-width:       24px;
    height:          24px;
    background:      var(--color-border);
    border-radius:   50%;
    display:         flex;
    align-items:     center;
    justify-content: center;
    font-size:       11px;
    color:           var(--color-muted);
    flex-shrink:     0;
}

.step-input {
    flex: 1;
}

.step-remove {
    background: none;
    border:     none;
    color:      var(--color-muted);
    padding:    4px;
    border-radius: 4px;
    transition: all var(--transition);
    display:    flex;
    align-items: center;
    flex-shrink: 0;
}

.step-remove:hover {
    color:      #dc2626;
    background: #fee2e2;
}

/* Tags input */
.tags-input-wrap {
    display:     flex;
    flex-wrap:   wrap;
    gap:         6px;
    align-items: center;
    background:  var(--color-card);
    border:      1px solid var(--color-border);
    border-radius: var(--radius);
    padding:     8px 10px;
    cursor:      text;
    min-height:  42px;
    transition:  border-color var(--transition), box-shadow var(--transition);
}

.tags-input-wrap:focus-within {
    border-color: var(--color-accent);
    box-shadow:   0 0 0 3px rgba(200,75,47,.1);
}

.tag-chip {
    display:     flex;
    align-items: center;
    gap:         4px;
    background:  var(--color-bg);
    border:      1px solid var(--color-border);
    border-radius: 20px;
    padding:     2px 8px;
    font-size:   12px;
    color:       var(--color-text);
}

.tag-chip-remove {
    background: none;
    border:     none;
    color:      var(--color-muted);
    cursor:     pointer;
    padding:    0;
    line-height: 1;
    font-size:  14px;
    display:    flex;
    align-items: center;
}

.tag-chip-remove:hover { color: #dc2626; }

.tags-text-input {
    border:      none;
    outline:     none;
    background:  none;
    font-family: var(--font-mono);
    font-size:   13px;
    color:       var(--color-text);
    min-width:   80px;
    flex:        1;
}

/* --- Modal --- */
.modal-backdrop {
    position:        fixed;
    inset:           0;
    background:      rgba(0,0,0,.4);
    z-index:         200;
    display:         flex;
    align-items:     center;
    justify-content: center;
    padding:         24px;
    backdrop-filter: blur(4px);
}

.modal {
    background:    var(--color-card);
    border:        1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding:       28px;
    max-width:     420px;
    width:         100%;
    box-shadow:    var(--shadow-lg);
}

.modal-title {
    font-family:   var(--font-display);
    font-size:     22px;
    margin-bottom: 10px;
}

.modal-body {
    font-size:     14px;
    color:         var(--color-text-light);
    margin-bottom: 24px;
    line-height:   1.6;
}

.modal-actions {
    display:         flex;
    gap:             10px;
    justify-content: flex-end;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .mobile-header {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding-top: var(--header-height);
    }

    #view-container {
        padding: 24px 16px;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .add-form-row {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: 26px;
    }

    .method-detail-title {
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .library-controls {
        flex-direction: column;
        align-items:    stretch;
    }

    .filter-tabs {
        overflow-x: auto;
        flex-wrap:  nowrap;
    }
}

/* --- Utility --- */
.sr-only {
    position: absolute;
    width:    1px;
    height:   1px;
    padding:  0;
    margin:   -1px;
    overflow: hidden;
    clip:     rect(0,0,0,0);
    border:   0;
}

.text-muted { color: var(--color-muted); }
.text-accent { color: var(--color-accent); }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.flex { display: flex; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }