/* ═══════════════════════════════════════════════════
   ScholarAI Pro — Frontend Stylesheet v1.0
   Design: Dark Academic / Refined Glassmorphism
═══════════════════════════════════════════════════ */

/* ─── CSS Variables ─────────────────────────────── */
.sap-root {
    --sap-bg:          #0d1117;
    --sap-surface:     #161b27;
    --sap-surface-2:   #1e2536;
    --sap-surface-3:   #252d40;
    --sap-border:      rgba(255,255,255,0.08);
    --sap-border-2:    rgba(255,255,255,0.14);
    --sap-accent:      #6366f1;
    --sap-accent-2:    #818cf8;
    --sap-accent-3:    #a5b4fc;
    --sap-gold:        #f59e0b;
    --sap-green:       #10b981;
    --sap-red:         #ef4444;
    --sap-text:        #e2e8f0;
    --sap-text-2:      #94a3b8;
    --sap-text-3:      #64748b;
    --sap-radius:      14px;
    --sap-radius-sm:   8px;
    --sap-shadow:      0 8px 32px rgba(0,0,0,0.45);
    --sap-font:        'Georgia', 'Times New Roman', serif;
    --sap-font-ui:     'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ─── Root Container ─────────────────────────────── */
.sap-root {
    font-family: var(--sap-font-ui);
    background: var(--sap-bg);
    color: var(--sap-text);
    min-height: 600px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--sap-shadow);
    position: relative;
}

/* Ambient background glow */
.sap-root::before {
    content: '';
    position: fixed;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* ─── Header ─────────────────────────────── */
.sap-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    background: linear-gradient(135deg, #0f1729 0%, #1a1040 50%, #0f1729 100%);
    border-bottom: 1px solid var(--sap-border);
    flex-wrap: wrap;
    gap: 14px;
    position: relative;
    z-index: 10;
}
.sap-header::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--sap-accent), transparent);
}
.sap-header-left  { display: flex; align-items: center; gap: 14px; }
.sap-header-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.sap-logo-orb {
    width: 52px; height: 52px;
    background: linear-gradient(135deg, #6366f1, #a78bfa, #818cf8);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
    box-shadow: 0 0 24px rgba(99,102,241,0.5);
    flex-shrink: 0;
}
.sap-brand-name {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #fff;
    margin: 0;
    font-family: var(--sap-font-ui);
}
.sap-brand-pro {
    background: linear-gradient(90deg, #818cf8, #f0abfc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.sap-brand-tagline { font-size: 12px; color: var(--sap-text-3); margin: 2px 0 0; }

/* Language switcher */
.sap-lang-switcher { display: flex; gap: 4px; }
.sap-lang-btn {
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid var(--sap-border-2);
    background: var(--sap-surface-2);
    color: var(--sap-text-2);
    font-size: 11px; font-weight: 700;
    cursor: pointer; transition: all 0.2s;
}
.sap-lang-btn:hover, .sap-lang-btn.active {
    background: var(--sap-accent);
    border-color: var(--sap-accent);
    color: #fff;
}

/* User badge */
.sap-user-badge { display: flex; align-items: center; gap: 8px; }
.sap-user-avatar {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, #6366f1, #a78bfa);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; color: #fff;
}
.sap-user-name { font-size: 13px; color: var(--sap-text-2); }

/* ─── Navigation Tabs ─────────────────────────────── */
.sap-nav {
    display: flex;
    background: var(--sap-surface);
    border-bottom: 1px solid var(--sap-border);
    overflow-x: auto;
    scrollbar-width: none;
    position: relative; z-index: 5;
}
.sap-nav::-webkit-scrollbar { display: none; }
.sap-tab-btn {
    flex: 1; min-width: 120px;
    display: flex; flex-direction: column; align-items: center;
    padding: 14px 20px;
    border: none; background: none;
    color: var(--sap-text-3);
    cursor: pointer; transition: all 0.3s;
    border-bottom: 3px solid transparent;
    position: relative;
}
.sap-tab-btn:hover { color: var(--sap-text-2); background: rgba(255,255,255,0.03); }
.sap-tab-btn.active {
    color: var(--sap-accent-3);
    border-bottom-color: var(--sap-accent);
    background: rgba(99,102,241,0.08);
}
.sap-tab-icon { font-size: 20px; margin-bottom: 2px; }
.sap-tab-label { font-size: 13px; font-weight: 600; }
.sap-tab-sub   { font-size: 10px; color: var(--sap-text-3); }
.sap-tab-btn.active .sap-tab-sub { color: var(--sap-accent-3); opacity: 0.7; }

/* ─── Panels ─────────────────────────────── */
.sap-panel {
    padding: 24px;
    animation: sapFadeIn 0.3s ease;
}
@keyframes sapFadeIn { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:none; } }

/* ─── Cards ─────────────────────────────── */
.sap-card {
    background: var(--sap-surface);
    border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius);
    padding: 22px;
    margin-bottom: 18px;
    transition: border-color 0.2s;
}
.sap-card:hover { border-color: var(--sap-border-2); }
.sap-card-title {
    display: flex; align-items: center; gap: 10px;
    font-size: 15px; font-weight: 700;
    color: var(--sap-text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--sap-border);
}

/* ─── Upload Zone ─────────────────────────────── */
.sap-upload-zone {
    border: 2px dashed var(--sap-border-2);
    border-radius: var(--sap-radius);
    padding: 50px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}
.sap-upload-zone:hover, .sap-upload-zone.sap-dragover {
    border-color: var(--sap-accent);
    background: rgba(99,102,241,0.06);
}
.sap-upload-icon { font-size: 42px; margin-bottom: 12px; }
.sap-upload-main { font-size: 16px; font-weight: 600; color: var(--sap-text); }
.sap-upload-sub  { font-size: 13px; color: var(--sap-text-3); margin-top: 6px; }

/* ─── Paper List ─────────────────────────────── */
.sap-paper-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 14px;
    border-radius: var(--sap-radius-sm);
    background: var(--sap-surface-2);
    margin-bottom: 8px;
    cursor: pointer; transition: all 0.2s;
    border: 2px solid transparent;
}
.sap-paper-item:hover { border-color: var(--sap-border-2); }
.sap-paper-item.active { border-color: var(--sap-accent); background: rgba(99,102,241,0.1); }
.sap-paper-thumb { font-size: 24px; flex-shrink: 0; }
.sap-paper-info { flex: 1; min-width: 0; }
.sap-paper-name { font-size: 13px; font-weight: 600; truncate: ellipsis; white-space: nowrap; overflow: hidden; }
.sap-paper-meta { font-size: 11px; color: var(--sap-text-3); margin-top: 2px; }
.sap-paper-del {
    background: none; border: none;
    color: var(--sap-text-3); cursor: pointer; padding: 4px 8px;
    border-radius: 6px; font-size: 14px;
    transition: all 0.2s;
}
.sap-paper-del:hover { background: rgba(239,68,68,0.15); color: var(--sap-red); }

/* ─── Tools Grid ─────────────────────────────── */
.sap-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}
.sap-tool-card {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius);
    padding: 20px 16px;
    cursor: pointer; text-align: center;
    transition: all 0.25s;
}
.sap-tool-card:hover {
    transform: translateY(-3px);
    border-color: var(--sap-accent);
    background: rgba(99,102,241,0.1);
    box-shadow: 0 8px 24px rgba(99,102,241,0.2);
}
.sap-tool-icon { font-size: 32px; margin-bottom: 10px; }
.sap-tool-name { font-size: 13px; font-weight: 700; color: var(--sap-text); margin-bottom: 6px; }
.sap-tool-desc { font-size: 11px; color: var(--sap-text-3); line-height: 1.4; }

/* ─── Analysis Panel ─────────────────────────────── */
.sap-analysis-panel { border-color: var(--sap-accent); border-width: 1.5px; }
.sap-panel-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 16px;
}
.sap-panel-title { font-size: 16px; font-weight: 700; color: var(--sap-accent-3); }

/* ─── Form Elements ─────────────────────────────── */
.sap-input, .sap-select, .sap-textarea {
    width: 100%; padding: 10px 14px;
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border-2);
    border-radius: var(--sap-radius-sm);
    color: var(--sap-text);
    font-size: 14px;
    font-family: var(--sap-font-ui);
    transition: border-color 0.2s;
}
.sap-input:focus, .sap-select:focus, .sap-textarea:focus {
    outline: none;
    border-color: var(--sap-accent);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.sap-select option { background: var(--sap-surface-2); }
.sap-textarea { resize: vertical; line-height: 1.6; }
.sap-mono { font-family: 'Courier New', Courier, monospace; font-size: 12px; }
.sap-mono-small { font-family: 'Courier New', Courier, monospace; font-size: 11px; line-height: 1.8; }
.sap-label { display: block; font-size: 13px; font-weight: 600; color: var(--sap-text-2); margin-bottom: 6px; }

.sap-prompt-box {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border-2);
    border-radius: var(--sap-radius-sm);
    padding: 14px;
    min-height: 90px;
    font-size: 14px; line-height: 1.6;
    color: var(--sap-text);
    cursor: text;
    margin: 10px 0;
}
.sap-prompt-box:focus { outline: 2px solid var(--sap-accent); }

/* ─── Buttons ─────────────────────────────── */
.sap-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 20px; border-radius: var(--sap-radius-sm);
    font-size: 13px; font-weight: 600; font-family: var(--sap-font-ui);
    border: none; cursor: pointer; transition: all 0.2s;
    text-decoration: none;
}
.sap-btn:hover { transform: translateY(-1px); }
.sap-btn:active { transform: translateY(0); }

.sap-btn-primary  { background: var(--sap-accent); color: #fff; box-shadow: 0 4px 14px rgba(99,102,241,0.4); }
.sap-btn-primary:hover { background: var(--sap-accent-2); }
.sap-btn-secondary { background: var(--sap-surface-3); color: var(--sap-text); border: 1px solid var(--sap-border-2); }
.sap-btn-secondary:hover { border-color: var(--sap-accent); }
.sap-btn-accent   { background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; }
.sap-btn-danger   { background: var(--sap-red); color: #fff; }
.sap-btn-ghost    { background: transparent; color: var(--sap-text-2); border: 1px solid var(--sap-border-2); }
.sap-btn-ghost:hover { background: var(--sap-surface-2); color: var(--sap-text); }
.sap-btn-sm { padding: 6px 12px; font-size: 12px; }

.sap-btn-row {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-top: 12px;
}

/* ─── Loading ─────────────────────────────── */
.sap-loading { text-align: center; padding: 30px 20px; }
.sap-spinner {
    width: 38px; height: 38px;
    border: 3px solid var(--sap-surface-3);
    border-top-color: var(--sap-accent);
    border-radius: 50%;
    animation: sapSpin 0.8s linear infinite;
    margin: 0 auto 12px;
}
@keyframes sapSpin { to { transform: rotate(360deg); } }
.sap-loading p { color: var(--sap-text-3); font-size: 13px; }

/* ─── Result Area ─────────────────────────────── */
.sap-result-area { margin-top: 16px; }
.sap-result-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 10px;
    font-size: 13px; font-weight: 600; color: var(--sap-text-2);
}
.sap-result-content {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius-sm);
    padding: 18px; line-height: 1.8;
    white-space: pre-wrap; font-size: 14px;
    color: var(--sap-text); max-height: 500px; overflow-y: auto;
}

/* ─── Hint / Info ─────────────────────────────── */
.sap-hint { font-size: 13px; color: var(--sap-text-3); margin-bottom: 14px; line-height: 1.6; }
.sap-info-box {
    background: rgba(245,158,11,0.08);
    border-left: 3px solid var(--sap-gold);
    border-radius: 0 8px 8px 0;
    padding: 12px 14px;
    font-size: 12px; line-height: 1.8;
    color: var(--sap-text-2);
    margin-bottom: 14px;
}

/* ─── RPA ─────────────────────────────── */
.sap-rpa-stats {
    display: flex; gap: 14px; flex-wrap: wrap;
    margin-bottom: 16px;
}
.sap-stat-pill {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: 20px; padding: 6px 14px;
    font-size: 12px; color: var(--sap-text-2);
}
.sap-stat-pill strong { color: var(--sap-accent-3); }

.sap-search-wrap {
    position: relative; margin-bottom: 14px;
}
.sap-search-icon {
    position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
    font-size: 15px;
}
.sap-search {
    width: 100%; padding: 10px 14px 10px 38px;
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border-2);
    border-radius: var(--sap-radius-sm);
    color: var(--sap-text); font-size: 14px;
}
.sap-search:focus { outline: none; border-color: var(--sap-accent); }
.sap-search::placeholder { color: var(--sap-text-3); }

.sap-topic-bar { margin-bottom: 16px; }

/* Accordion sections */
.sap-section-accordion {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius-sm);
    margin-bottom: 8px; overflow: hidden;
}
.sap-section-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 13px 16px;
    cursor: pointer; background: none; border: none; width: 100%;
    color: var(--sap-text); font-family: var(--sap-font-ui);
    transition: background 0.2s;
}
.sap-section-header:hover { background: rgba(99,102,241,0.06); }
.sap-section-header-left { display: flex; align-items: center; gap: 10px; }
.sap-section-icon { font-size: 18px; }
.sap-section-title { font-size: 14px; font-weight: 700; }
.sap-section-count {
    background: var(--sap-accent); color: #fff;
    border-radius: 12px; padding: 2px 8px; font-size: 11px; font-weight: 700;
}
.sap-section-chevron { font-size: 12px; color: var(--sap-text-3); transition: transform 0.3s; }
.sap-section-accordion.open .sap-section-chevron { transform: rotate(180deg); }
.sap-section-body { display: none; padding: 8px 12px 12px; }
.sap-section-accordion.open .sap-section-body { display: block; }

.sap-prompt-item {
    padding: 10px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px; line-height: 1.6;
    color: var(--sap-text-2);
    border: 1px solid transparent;
    transition: all 0.2s; margin-bottom: 4px;
    display: flex; align-items: flex-start; gap: 8px;
}
.sap-prompt-item:hover {
    background: rgba(99,102,241,0.08);
    border-color: var(--sap-accent);
    color: var(--sap-text);
}
.sap-prompt-item.filtered-out { display: none; }
.sap-prompt-num { font-size: 11px; color: var(--sap-text-3); min-width: 22px; padding-top: 2px; }

/* ─── SmartRef ─────────────────────────────── */
.sap-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
@media (max-width: 768px) { .sap-two-col { grid-template-columns: 1fr; } }
.sap-form-stack > * + * { margin-top: 14px; }
.sap-form-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.sap-col-span-2 { grid-column: span 2; }

.sap-ref-type-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.sap-ref-type-btn {
    padding: 5px 12px; border-radius: 20px;
    border: 1px solid var(--sap-border-2);
    background: var(--sap-surface-2); color: var(--sap-text-2);
    font-size: 12px; cursor: pointer; transition: all 0.2s;
}
.sap-ref-type-btn.active {
    background: var(--sap-accent); border-color: var(--sap-accent); color: #fff;
}

.sap-progress-bar {
    margin-top: 10px;
    background: var(--sap-surface-2);
    border-radius: 8px; padding: 12px;
}
.sap-progress-fill-track {
    width: 100%; height: 6px;
    background: var(--sap-surface-3); border-radius: 3px; overflow: hidden;
    margin-bottom: 8px;
}
.sap-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--sap-accent), var(--sap-accent-3));
    border-radius: 3px; transition: width 0.5s;
    width: 0%;
}
.sap-progress-bar p { font-size: 12px; color: var(--sap-text-3); text-align: center; }

.sap-ref-output {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius-sm);
    padding: 18px; min-height: 140px;
    white-space: pre-wrap; line-height: 1.9;
    font-size: 14px; color: var(--sap-text);
}
.sap-ref-output.empty { color: var(--sap-text-3); font-style: italic; display: flex; align-items: center; justify-content: center; }

.sap-accuracy-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px; margin-top: 10px;
}
.sap-accuracy-item {
    background: var(--sap-surface-2);
    border: 1px solid var(--sap-border);
    border-radius: 8px; padding: 10px;
    text-align: center;
}
.sap-accuracy-count { font-size: 22px; font-weight: 800; color: var(--sap-accent-3); }
.sap-accuracy-label { font-size: 11px; color: var(--sap-text-3); margin-top: 2px; }

/* ─── Library ─────────────────────────────── */
.sap-library-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.sap-filter-btn {
    padding: 6px 14px; border-radius: 20px;
    border: 1px solid var(--sap-border-2);
    background: var(--sap-surface-2); color: var(--sap-text-2);
    font-size: 12px; cursor: pointer; transition: all 0.2s;
}
.sap-filter-btn.active, .sap-filter-btn:hover {
    background: var(--sap-accent); border-color: var(--sap-accent); color: #fff;
}

.sap-library-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.sap-library-item {
    background: var(--sap-surface-2); border: 1px solid var(--sap-border);
    border-radius: var(--sap-radius-sm); padding: 16px;
    cursor: pointer; transition: all 0.2s;
}
.sap-library-item:hover { border-color: var(--sap-accent); transform: translateY(-2px); }
.sap-library-item-tool {
    font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
    color: var(--sap-accent-3); margin-bottom: 8px;
}
.sap-library-item-title { font-size: 14px; font-weight: 700; color: var(--sap-text); margin-bottom: 6px; }
.sap-library-item-preview { font-size: 12px; color: var(--sap-text-3); line-height: 1.6; max-height: 60px; overflow: hidden; }
.sap-library-item-date { font-size: 11px; color: var(--sap-text-3); margin-top: 10px; border-top: 1px solid var(--sap-border); padding-top: 8px; }

.sap-library-empty {
    text-align: center; padding: 60px 20px;
    color: var(--sap-text-3);
}
.sap-library-empty-icon { font-size: 48px; margin-bottom: 12px; }
.sap-library-empty p { font-size: 14px; }

/* ─── Modal ─────────────────────────────── */
.sap-modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
    z-index: 99999; display: flex; align-items: center; justify-content: center;
    padding: 20px;
}
.sap-modal {
    background: var(--sap-surface);
    border: 1px solid var(--sap-border-2);
    border-radius: 16px; width: 100%; max-width: 680px;
    max-height: 85vh; display: flex; flex-direction: column;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    animation: sapFadeIn 0.25s ease;
}
.sap-modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 22px; border-bottom: 1px solid var(--sap-border);
}
.sap-modal-header h3 { font-size: 16px; font-weight: 700; margin: 0; }
.sap-modal-body { flex: 1; overflow-y: auto; padding: 22px; white-space: pre-wrap; line-height: 1.8; font-size: 14px; }
.sap-modal-footer { display: flex; gap: 8px; padding: 14px 22px; border-top: 1px solid var(--sap-border); }

/* ─── Toast ─────────────────────────────── */
.sap-toast {
    position: fixed; bottom: 24px; right: 24px;
    background: var(--sap-surface-3); color: var(--sap-text);
    border: 1px solid var(--sap-border-2);
    padding: 12px 20px; border-radius: 10px;
    font-size: 13px; font-weight: 600;
    box-shadow: var(--sap-shadow); z-index: 999999;
    transform: translateY(100px); opacity: 0;
    transition: all 0.3s ease;
    max-width: 340px;
}
.sap-toast.show { transform: translateY(0); opacity: 1; }
.sap-toast.success { border-color: var(--sap-green); color: var(--sap-green); }
.sap-toast.error   { border-color: var(--sap-red);   color: var(--sap-red); }
.sap-toast.info    { border-color: var(--sap-accent); color: var(--sap-accent-3); }

/* ─── Access Denied ─────────────────────────────── */
.sap-access-denied {
    background: #1e2536; border: 1px solid rgba(99,102,241,0.3);
    border-radius: 14px; padding: 40px; text-align: center;
    color: #94a3b8; font-size: 15px; line-height: 1.8;
}
.sap-access-denied a { color: #818cf8; }

/* ─── RTL Support ─────────────────────────────── */
.sap-root[dir="rtl"] .sap-header-right { flex-direction: row-reverse; }
.sap-root[dir="rtl"] .sap-card-title   { flex-direction: row-reverse; }
.sap-root[dir="rtl"] .sap-info-box     { border-left: none; border-right: 3px solid var(--sap-gold); border-radius: 8px 0 0 8px; }
.sap-root[dir="rtl"] .sap-toast        { right: auto; left: 24px; }
.sap-root[dir="rtl"] .sap-search-icon  { left: auto; right: 12px; }
.sap-root[dir="rtl"] .sap-search       { padding: 10px 38px 10px 14px; }

/* ─── Responsive ─────────────────────────────── */
@media (max-width: 600px) {
    .sap-panel { padding: 14px; }
    .sap-tools-grid { grid-template-columns: repeat(2, 1fr); }
    .sap-form-grid { grid-template-columns: 1fr; }
    .sap-col-span-2 { grid-column: span 1; }
    .sap-brand-name { font-size: 18px; }
    .sap-tab-sub { display: none; }
}
@media (max-width: 420px) {
    .sap-tools-grid { grid-template-columns: 1fr; }
    .sap-header { padding: 14px 16px; }
}

/* ─── Admin CSS (inline for brevity) ─────────────── */