/* Sanaa OS — System Settings (macOS-inspired) */

.sanaa-settings {
    display: flex;
    height: 100%;
    background: var(--bg-primary);
    overflow: hidden;
}

.sanaa-settings-sidebar {
    width: 240px;
    flex-shrink: 0;
    border-right: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.18);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sanaa-settings-search {
    padding: 14px 12px 10px;
    border-bottom: 1px solid var(--border-light);
}

.sanaa-settings-search input {
    width: 100%;
    padding: 8px 10px 8px 32px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
}

.sanaa-settings-search input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.sanaa-settings-nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px 8px 16px;
}

.sanaa-settings-group-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 12px 10px 6px;
}

.sanaa-settings-pane-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
}

.sanaa-settings-pane-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sanaa-settings-pane-btn.active {
    background: var(--accent-glow);
    color: var(--text-primary);
    font-weight: 600;
}

.sanaa-settings-pane-icon {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
    border: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
    color: var(--text-primary);
}

.sanaa-settings-pane-icon svg { width: 15px; height: 15px; }

.sanaa-settings-main {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px 40px;
}

.sanaa-settings-header {
    margin-bottom: 24px;
}

.sanaa-settings-header h2 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin: 0 0 4px;
}

.sanaa-settings-header p {
    margin: 0;
    font-size: 13px;
    color: var(--text-muted);
}

.sanaa-settings-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
}

.sanaa-settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    font-size: 13px;
}

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

.sanaa-settings-row-label {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.sanaa-settings-row-label strong {
    font-weight: 600;
    color: var(--text-primary);
}

.sanaa-settings-row-label span {
    font-size: 11px;
    color: var(--text-muted);
}

.sanaa-settings-toggle {
    position: relative;
    width: 44px;
    height: 26px;
    flex-shrink: 0;
}

.sanaa-settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.sanaa-settings-toggle-slider {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: rgba(255,255,255,0.12);
    cursor: pointer;
    transition: background 0.2s ease;
}

.sanaa-settings-toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    top: 3px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    transition: transform 0.2s ease;
}

.sanaa-settings-toggle input:checked + .sanaa-settings-toggle-slider {
    background: var(--accent);
}

.sanaa-settings-toggle input:checked + .sanaa-settings-toggle-slider::before {
    transform: translateX(18px);
}

.sanaa-settings-select,
.sanaa-settings-input {
    min-width: 160px;
    padding: 7px 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 12px;
}

.sanaa-settings-btn {
    padding: 7px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-hover);
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.12s ease;
}

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

.sanaa-settings-wallpaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.sanaa-settings-wallpaper {
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.sanaa-settings-wallpaper:hover { transform: scale(1.02); }
.sanaa-settings-wallpaper.active { border-color: var(--accent); }

.sanaa-settings-wallpaper-preview {
    height: 88px;
}

.sanaa-settings-wallpaper-name {
    padding: 8px 10px;
    font-size: 11px;
    font-weight: 600;
    text-align: center;
    background: var(--bg-secondary);
}

.sanaa-settings-device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.sanaa-settings-device-card {
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.sanaa-settings-device-card .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.sanaa-settings-device-card .status-dot.online { background: var(--success); }
.sanaa-settings-device-card .status-dot.offline { background: var(--error); }

.sanaa-settings-mode-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.sanaa-settings-mode-card {
    padding: 16px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    cursor: pointer;
    text-align: center;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.sanaa-settings-mode-card.active {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.sanaa-settings-mode-card h4 {
    margin: 8px 0 4px;
    font-size: 13px;
}

.sanaa-settings-mode-card p {
    margin: 0;
    font-size: 11px;
    color: var(--text-muted);
}

.sanaa-settings-link-row {
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

.sanaa-settings-about-hero {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(16,185,129,0.08));
    border: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 16px;
}

.sanaa-settings-about-logo {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #6366f1, #10b981);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
}

/* macOS-style loading shimmer */
@keyframes sanaa-settings-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.sanaa-settings-loading .sanaa-settings-main,
.sanaa-settings-body-loading {
    animation: none;
}

.sanaa-settings-shimmer,
.sanaa-settings-shimmer-row .sanaa-settings-shimmer {
    border-radius: 8px;
    background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.12) 50%, rgba(255,255,255,0.04) 75%);
    background-size: 200% 100%;
    animation: sanaa-settings-shimmer 1.4s ease-in-out infinite;
}

.sanaa-settings-shimmer-wrap {
    display: grid;
    gap: 12px;
    padding: 8px 0;
}

.sanaa-settings-shimmer-row {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 6px 10px;
}

.sanaa-settings-shimmer-header {
    display: grid;
    gap: 10px;
    margin-bottom: 18px;
}

.sanaa-settings-shimmer-card {
    margin-bottom: 14px;
}

.sanaa-settings-registry-note {
    margin: 10px 10px 0;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: var(--text-secondary);
    font-size: 11px;
    line-height: 1.4;
}

.sanaa-settings-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.sanaa-settings-error-card {
    margin: 0 0 12px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid rgba(239, 68, 68, 0.35);
    background: rgba(239, 68, 68, 0.08);
    font-size: 12px;
}
.sanaa-settings-error-card strong { display: block; margin-bottom: 6px; }
.sanaa-settings-error-card p { margin: 0 0 10px; color: var(--text-muted); }

.sanaa-settings-users-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px 8px;
    border-bottom: 1px solid var(--border-light);
}

.sanaa-settings-users-toolbar .title {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    flex-shrink: 0;
}

.sanaa-settings-users-toolbar input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 12px;
    padding: 8px 10px;
}

.sanaa-settings-add-btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #fff;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sanaa-settings-add-btn:hover {
    filter: brightness(1.08);
}

.sanaa-settings-user-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
}

.sanaa-settings-user-row:last-child {
    border-bottom: none;
}

.sanaa-settings-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.sanaa-settings-user-info {
    flex: 1;
    min-width: 0;
}

.sanaa-settings-user-info strong {
    display: block;
    font-size: 13px;
}

.sanaa-settings-user-info span {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sanaa-settings-role-chip {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 999px;
    flex-shrink: 0;
}

.sanaa-settings-user-form {
    padding: 4px 0 0;
}

.sanaa-settings-user-form.hidden {
    display: none;
}

.sanaa-settings-account-hero {
    background: linear-gradient(135deg, rgba(99,102,241,0.10), rgba(16,185,129,0.06));
    border: 1px solid rgba(255,255,255,0.08);
}

.sanaa-settings-account-hero .sanaa-settings-row:first-child {
    padding-top: 16px;
    padding-bottom: 16px;
}

.sanaa-settings-account-hero .sanaa-settings-row-label strong {
    font-size: 15px;
}

@media (max-width: 720px) {
    .sanaa-settings { flex-direction: column; }
    .sanaa-settings-sidebar { width: 100%; max-height: 200px; border-right: none; border-bottom: 1px solid var(--border-color); }
    .sanaa-settings-mode-cards { grid-template-columns: 1fr; }
}