/* Cycling Workout Generator - PWA Styles */
/* Dark Mode Theme */

:root {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --primary: #0EA5E9;
    --primary-dark: #0284C7;
    --secondary: #22C55E;
    --secondary-dark: #16A34A;
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --border: #475569;
    --error: #EF4444;
    --success: #22C55E;
    --warning: #F59E0B;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 2rem;
}

/* Header */
.header {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-static {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0.25rem 0 0;
}

.donate-btn-header {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.donate-btn-header:hover {
    background-color: var(--primary-dark);
}

.donate-btn-header svg {
    width: 18px;
    height: 18px;
}

.install-btn-header {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--secondary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.install-btn-header:hover {
    background-color: var(--secondary-dark);
}

.install-btn-header svg {
    width: 18px;
    height: 18px;
}

.btn-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-icon-wrap svg {
    width: 18px;
    height: 18px;
}

.install-btn-header, .donate-btn-header {
    appearance: none;
    align-items: center;
    display: inline-flex;
    justify-content: center;
    height: 40px;
    min-height: 40px;
    max-height: 40px;
    padding: 0.5rem 1rem;
    box-sizing: border-box;
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.25;
}
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.settings-btn:hover {
    background-color: var(--bg-tertiary);
}

.settings-btn svg {
    width: 24px;
    height: 24px;
}

/* Update Banner */
.update-banner {
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.update-banner button {
    background-color: white;
    color: var(--primary);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
}

/* Search Section */
.search-section {
    padding: 1.5rem 1rem;
}

.search-container {
    max-width: 1200px;
    margin: 0 auto;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.select-input {
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.select-input:focus {
    outline: none;
    border-color: var(--primary);
}

.tss-range {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.range-input {
    width: 100%;
    accent-color: var(--primary);
}

#tssLabel {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn svg {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--border);
}

#installBtn {
    background-color: #22c55e;
    color: white;
    margin-bottom: 0;
}

#installBtn:hover {
    background-color: #16a34a;
}

/* Stats Display */
.stats-display {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Results Section */
.results-section {
    padding: 0 1rem;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.workouts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.workout-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
}

.workout-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    flex: 1;
    margin-right: 0.5rem;
}

.category-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.card-stats {
    display: flex;
    justify-content: space-between;
}

.card-stats .stat {
    text-align: center;
}

.card-stats .stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

.card-stats .stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.empty-state .intervals-note {
    margin-top: 1rem;
    padding: 0.75rem;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-left: 3px solid #3b82f6;
}

.empty-state .support-note {
    margin-top: 1rem;
    font-size: 0.875rem;
}

.empty-state .support-note a {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background-color: var(--bg-secondary);
    border-radius: 16px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
}

/* Workout Detail */
.workout-detail {
    padding: 1.5rem;
}

.detail-header {
    margin-bottom: 1.5rem;
}

.detail-info h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.detail-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.detail-schedule {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.detail-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.meta-item strong {
    color: var(--text-primary);
}

.detail-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-box {
    text-align: center;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
}

.stat-box .stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

.stat-box .stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.detail-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.action-btn {
    flex: 1;
    min-width: 200px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn svg {
    width: 20px;
    height: 20px;
}

.action-download {
    background-color: var(--secondary);
    color: white;
}

.action-upload {
    background-color: var(--primary);
    color: white;
}

.coach-actions .btn-secondary {
    margin-left: 0.5rem;
}

/* Voice read button */
#readLastBtn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

/* Settings */
.settings-content {
    padding: 1.5rem;
}

.settings-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.settings-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.settings-section .btn {
    margin-bottom: 0.5rem;
    width: 100%;
}

.settings-section:last-child {
    border-bottom: none;
}

.settings-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.settings-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding: 0.5rem;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 6px;
    border-left: 3px solid #3b82f6;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.version-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Donation Section */
.donation-section {
    text-align: center;
    padding: 1rem 0;
}

.donation-section h3 {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.donation-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Donate Modal */
.donate-modal-content {
    padding: 2rem;
    text-align: center;
}

.donate-modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.donate-modal-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.donate-modal-content form {
    display: flex;
    justify-content: center;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 1rem 2rem;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 1001;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.toast-info {
    background-color: var(--secondary);
}

.toast-success {
    background-color: var(--success);
}

.toast-error {
    background-color: var(--error);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .logo h1 {
        font-size: 1rem;
    }

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

    .detail-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .detail-actions {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
    }

    /* Mobile PWA: the sticky header + tab bar consume a larger share of the
       dynamic viewport, so the tab panel must be allowed to shrink and the
       results area must remain scrollable. Using dvh here lets the panel
       resize when the browser chrome (address bar / bottom nav) hides or
       shows, instead of clipping content at a stale fixed height. */
    .tab-panel.active {
        height: calc(100dvh - 110px);
        max-height: calc(100dvh - 110px);
    }

    .search-section {
        padding: 0.75rem 0.5rem;
        flex-shrink: 0;
    }

    .results-section {
        flex: 1 1 auto;
        min-height: 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 0.5rem;
    }

    .workouts-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

/* Workout Intensity Visualization */
.intensity-visual {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.intensity-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.intensity-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.intensity-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.intensity-zones {
    display: flex;
    justify-content: space-between;
}

.zone-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    font-weight: bold;
    opacity: 0.5;
}

.zone-dot.active {
    opacity: 1;
    transform: scale(1.2);
}

.intensity-note {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Workout Chart */
.chart-container {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    min-height: 200px;
}

.workout-chart {
    width: 100%;
    height: auto;
    display: block;
}

/* PWA Install Modal */
.pwa-install-content {
    padding: 2rem;
    text-align: center;
}

.pwa-install-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.pwa-install-content > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.pwa-instructions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
    text-align: left;
}

.pwa-instruction {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
}

.pwa-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pwa-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.android-icon {
    background-color: #3DDC84;
}

.apple-icon {
    background-color: #333;
}

.desktop-icon {
    background-color: #4285F4;
}

.pwa-text {
    display: flex;
    flex-direction: column;
}

.pwa-text strong {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.pwa-text span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ==================== AI Cycling Coach additions ==================== */

.tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0 1rem;
    border-bottom: 1px solid var(--border);
}

.tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-panel { display: none; padding: 1rem; }
.tab-panel.active { display: block; }

.dashboard {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}
.dash-h { font-size: 0.85rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.4rem; }
.fr-row { display: flex; justify-content: space-between; font-size: 0.8rem; padding: 0.15rem 0; }
.fr-ok { color: var(--success); }
.fr-stale { color: var(--warning); }
.fr-empty { font-size: 0.8rem; color: var(--text-secondary); }

.tab-panel.active {
    display: flex;
    flex-direction: column;
    height: calc(100dvh - 140px);
    max-height: calc(100dvh - 140px);
    overflow: hidden;
}

/* Fallback for browsers without dynamic viewport units (older iOS Safari, some Android). */
@supports not (height: calc(100dvh - 1px)) {
    .tab-panel.active {
        height: calc(100vh - 140px);
        max-height: calc(100vh - 140px);
    }
}

#tab-settings.tab-panel.active {
    display: block;
    height: auto;
    max-height: none;
    overflow: visible;
}

.chat-log {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0.25rem;
    min-height: 0;
}

.chat-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.35rem 0;
}
.chat-toolbar-title { display: flex; flex-direction: column; min-width: 0; }
.chat-toolbar-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#sessionSyncStatus { color: var(--text-secondary); }
#sessionSyncStatus[data-state="pending"] { color: var(--warning); }
#sessionSyncStatus[data-state="error"] { color: var(--error); }

.msg {
    border-radius: 14px;
    padding: 0.65rem 0.9rem;
    font-size: 0.9rem;
    max-width: 85%;
    word-wrap: break-word;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    position: relative;
    line-height: 1.45;
}
.msg-user { align-self: flex-end; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; border-bottom-right-radius: 4px; }
.msg-assistant { align-self: flex-start; background: var(--bg-secondary); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg-system { align-self: center; background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.82rem; text-align: center; }
.msg.streaming::after { content: "▋"; color: var(--primary); animation: blink 1s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }

.msg p { margin: 0.3rem 0; }
.msg h1, .msg h2, .msg h3 { margin: 0.5rem 0 0.3rem; }
.msg ul, .msg ol { margin: 0.3rem 0 0.3rem 1.2rem; }
.msg code { background: var(--bg-primary); padding: 0.05rem 0.3rem; border-radius: 4px; font-size: 0.85em; }
.msg .md-pre { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 6px; padding: 0.5rem; overflow-x: auto; margin: 0.4rem 0; }
.msg .md-table { border-collapse: collapse; width: 100%; margin: 0.4rem 0; font-size: 0.82rem; }
.msg .md-table th, .msg .md-table td { border: 1px solid var(--border); padding: 0.25rem 0.4rem; text-align: left; }
.msg a { color: var(--primary); }

.card-host { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 0.75rem; }

.action-card {
    background: var(--bg-secondary);
    border: 1px solid var(--primary);
    border-radius: 10px;
    padding: 0.8rem;
    font-size: 0.88rem;
}
.action-h { font-weight: 700; color: var(--primary); margin-bottom: 0.5rem; }
.action-row { display: flex; justify-content: space-between; gap: 1rem; padding: 0.15rem 0; }
.action-row span { color: var(--text-secondary); }
.action-box { background: var(--bg-primary); border-radius: 6px; padding: 0.4rem 0.6rem; margin: 0.35rem 0; }
.action-box .lbl { font-size: 0.72rem; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 0.2rem; }
.action-btns { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.6rem; }
.btn-primary, .btn-secondary {
    border: none; border-radius: 8px; padding: 0.5rem 0.9rem; font-size: 0.85rem;
    font-weight: 600; cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-secondary:hover { background: var(--border); }

.chat-input-bar { display: flex; gap: 0.5rem; align-items: flex-end; }
.chat-input-bar textarea {
    flex: 1; resize: vertical; min-height: 44px; padding: 0.6rem;
    background: var(--bg-secondary); border: 1px solid var(--border);
    border-radius: 8px; color: var(--text-primary); font-family: inherit; font-size: 0.9rem;
}
.chat-input-bar textarea:focus { outline: none; border-color: var(--primary); }
.coach-actions { margin-top: 0.6rem; display: flex; gap: 0.5rem; }
.spinner-sm {
    width: 12px; height: 12px; border: 2px solid rgba(255,255,255,.4);
    border-top-color: #fff; border-radius: 50%; display: inline-block;
    animation: spin 0.8s linear infinite; margin-right: 4px; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.settings-content .row { display: flex; gap: 0.5rem; min-width: 0; }
.settings-content .row .select-input { flex: 1; min-width: 0; }
.settings-content .gemini-model-controls { flex-direction: column; align-items: stretch; }
.settings-content .gemini-model-controls .select-input,
.settings-content .gemini-model-controls .btn { width: 100%; }
.version-info { color: var(--text-secondary); font-size: 0.85rem; }

@media (max-width: 768px) {
    .settings-content .row {
        flex-direction: column;
    }

    .settings-content .row > * {
        width: 100%;
    }
}