/* ===== Dark Theme Variables ===== */
:root {
    --bg-main: #232326;
    --bg-sidebar: #3c3c40;
    --bg-card: #3c3c40;
    --bg-input: #2b2b2e;
    --text-primary: #f5f1ed;
    --text-secondary: #b8b4b0;
    --text-muted: #8e8b87;
    --accent-peach: #ffb088;
    --accent-teal: #88d5c3;
    --accent-pink: #ff8b94;
    --border-color: rgba(142, 139, 135, 0.15);
    --sidebar-width: 280px;
    --sidebar-active-bg: rgba(255, 176, 136, 0.1);
}

/* ===== Reset & Base ===== */
html {
    font-size: 14px;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: flex;
    min-height: 100vh;
}

a {
    color: var(--accent-peach);
    text-decoration: none;
}

a:hover {
    color: #ffc4a8;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
}

.sidebar-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-peach);
    letter-spacing: -0.5px;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 8px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    border-radius: 8px;
    border-left: 4px solid transparent;
    transition: all 0.15s ease;
    font-size: 16px;
    font-weight: 600;
}

.sidebar-link:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-link.active {
    color: var(--text-primary);
    background-color: var(--sidebar-active-bg);
    border-left-color: var(--accent-peach);
}

.sidebar-link.active i {
    color: var(--accent-peach);
}

.sidebar-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.sidebar-heart {
    color: var(--accent-pink);
    font-size: 0.7rem;
}

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

.main-content {
    padding: 32px 40px;
    max-width: 1400px;
}

/* ===== Breadcrumb ===== */
.breadcrumb-dark {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.page-title {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 28px;
}

/* ===== Content Cards ===== */
.content-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    padding: 32px;
}

/* ===== Monitor List Panel ===== */
.monitor-list-panel {
    position: sticky;
    top: 32px;
}

.monitor-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
    max-height: calc(100vh - 240px);
    overflow-y: auto;
    padding: 4px;
    margin-left: -4px;
    margin-right: -4px;
}

/* ===== Monitor Cards ===== */
.monitor-card {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.15s ease;
    cursor: default;
}

.monitor-card:hover {
    border-color: rgba(142, 139, 135, 0.3);
}

.monitor-card.active {
    border-color: rgba(136, 213, 195, 0.4);
    background-color: rgba(136, 213, 195, 0.05);
}

.monitor-card.editing {
    border-color: var(--accent-peach);
    box-shadow: 0 0 0 2px rgba(255, 176, 136, 0.15);
}

.monitor-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.monitor-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background-color: rgba(255, 176, 136, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.monitor-card-icon i {
    font-size: 1rem;
    color: var(--accent-peach);
}

.monitor-card.active .monitor-card-icon {
    background-color: rgba(136, 213, 195, 0.15);
}

.monitor-card.active .monitor-card-icon i {
    color: var(--accent-teal);
}

.monitor-card-info {
    flex: 1;
    min-width: 0;
}

.monitor-card-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===== Status Badges ===== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 2px;
}

.status-badge.active {
    color: var(--accent-teal);
}

.status-badge.offline {
    color: var(--text-muted);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-badge.active .status-dot {
    background-color: var(--accent-teal);
}

.status-badge.offline .status-dot {
    background-color: var(--text-muted);
}

/* ===== Monitor Card Actions ===== */
.monitor-card-actions {
    display: flex;
    gap: 8px;
}

.btn-card-action {
    flex: 1;
    padding: 6px 12px;
    border: none;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.btn-card-action.btn-edit {
    background-color: rgba(255, 176, 136, 0.15);
    color: var(--accent-peach);
}

.btn-card-action.btn-edit:hover {
    background-color: rgba(255, 176, 136, 0.25);
}

.btn-card-action.btn-activate {
    background-color: rgba(136, 213, 195, 0.15);
    color: var(--accent-teal);
}

.btn-card-action.btn-activate:hover {
    background-color: rgba(136, 213, 195, 0.25);
}

/* ===== Editing Badge ===== */
.editing-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--accent-peach);
    background-color: rgba(255, 176, 136, 0.15);
    padding: 4px 10px;
    border-radius: 6px;
}

/* ===== Add Monitor Button ===== */
.btn-add-monitor {
    width: 100%;
    padding: 12px;
    background-color: var(--accent-teal);
    color: #1a1a1a;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.15s ease;
}

.btn-add-monitor:hover {
    background-color: #9ce0d0;
}

/* ===== Page Header ===== */
.page-header {
    margin-bottom: 28px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* ===== API Keys ===== */
.success-card {
    background: rgba(136, 213, 195, 0.1);
    border: 1px solid var(--accent-teal);
    border-radius: 12px;
    padding: 20px;
}

.success-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--accent-teal);
    font-weight: 600;
}

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

.key-display code {
    flex: 1;
    background: var(--bg-input);
    padding: 12px;
    border-radius: 8px;
    word-break: break-all;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.btn-icon {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    color: var(--text-primary);
    transition: border-color 0.15s ease;
}

.btn-icon:hover {
    border-color: rgba(142, 139, 135, 0.4);
}

.qr-section {
    text-align: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(136, 213, 195, 0.2);
}

.api-key-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--bg-input);
    border-radius: 8px;
}

.api-key-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.api-key-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.api-key-meta code {
    color: var(--text-secondary);
}

.btn-revoke {
    background: none;
    border: none;
    color: var(--accent-pink);
    cursor: pointer;
    padding: 6px 10px;
    transition: opacity 0.15s ease;
}

.btn-revoke:hover {
    opacity: 0.8;
}

.empty-state {
    color: var(--text-secondary);
    text-align: center;
    padding: 24px 0;
}

.generate-form {
    display: flex;
    gap: 12px;
    align-items: end;
}

/* ===== Config Section ===== */
.config-section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-peach);
    margin-bottom: 20px;
}

/* ===== Icon Selector ===== */
.icon-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.icon-option {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
    background-color: var(--bg-input);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 1rem;
}

.icon-option:hover {
    border-color: rgba(255, 176, 136, 0.4);
    color: var(--text-primary);
}

.icon-option.selected {
    border-color: var(--accent-peach);
    background-color: rgba(255, 176, 136, 0.15);
    color: var(--accent-peach);
}

/* ===== Dark Form Select ===== */
.form-select-dark {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 12px;
    height: 52px;
    padding: 16px 20px;
    font-size: 0.9rem;
    width: 100%;
    transition: border-color 0.15s ease;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%238e8b87' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px 12px;
    padding-right: 44px;
}

.form-select-dark:focus {
    background-color: var(--bg-input);
    border-color: var(--accent-peach);
    color: var(--text-primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 176, 136, 0.2);
}

.form-select-dark option {
    background-color: var(--bg-input);
    color: var(--text-primary);
}

/* ===== Audio Monitor Section ===== */
.audio-level-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 4px;
}

.audio-level-value {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    line-height: 1;
    margin-bottom: 8px;
    color: var(--accent-peach);
}

.audio-level-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 20px;
}

/* Monitoring Badge */
.monitoring-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(136, 213, 195, 0.15);
    color: var(--accent-teal);
    padding: 10px 20px;
    border-radius: 22px;
    height: 44px;
    font-size: 0.85rem;
    font-weight: 600;
}

.monitoring-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-teal);
}

.monitoring-badge.inactive {
    background-color: rgba(142, 139, 135, 0.15);
    color: var(--text-muted);
}

.monitoring-badge.inactive .dot {
    background-color: var(--text-muted);
}

/* Audio Meter Progress Bar */
.audio-meter-bar {
    width: 100%;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
    margin: 20px 0;
    position: relative;
}

.audio-meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-peach), var(--accent-pink));
    border-radius: 6px;
    transition: width 0.15s ease;
    width: 0%;
}

/* Sound Alert */
.sound-alert {
    background-color: rgba(255, 139, 148, 0.15);
    color: var(--accent-pink);
    border: 1px solid rgba(255, 139, 148, 0.3);
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 0.85rem;
    margin-bottom: 16px;
}

/* Monitor Buttons */
.btn-monitor-start {
    background-color: var(--accent-teal);
    color: #1a1a1a;
    border: none;
    padding: 10px 24px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.15s ease;
    cursor: pointer;
}

.btn-monitor-start:hover {
    background-color: #9ce0d0;
    color: #1a1a1a;
}

.btn-monitor-stop {
    background-color: rgba(255, 139, 148, 0.2);
    color: var(--accent-pink);
    border: none;
    padding: 10px 24px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.15s ease;
    cursor: pointer;
}

.btn-monitor-stop:hover {
    background-color: rgba(255, 139, 148, 0.3);
    color: var(--accent-pink);
}

/* ===== Settings Section ===== */
.settings-section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.settings-subsection-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 28px;
    margin-bottom: 16px;
}

.settings-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

/* Dark Form Inputs */
.form-label-dark {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-peach);
    margin-bottom: 6px;
}

.form-control-dark {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 12px;
    height: 52px;
    padding: 16px 20px;
    font-size: 0.9rem;
    width: 100%;
    transition: border-color 0.15s ease;
}

.form-control-dark:focus {
    background-color: var(--bg-input);
    border-color: var(--accent-peach);
    color: var(--text-primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 176, 136, 0.2);
}

.form-control-dark::placeholder {
    color: #555;
}

.form-hint {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Toggle Switch ===== */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.toggle-info {
    flex: 1;
}

.toggle-label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    display: block;
    margin-bottom: 2px;
}

.toggle-description {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 30px;
    flex-shrink: 0;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-input);
    border-radius: 30px;
    transition: all 0.2s ease;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    border-radius: 50%;
    transition: all 0.2s ease;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-peach);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
    background-color: var(--text-primary);
}

/* ===== Settings Message / Toast ===== */
.settings-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

.settings-toast.success {
    background-color: rgba(136, 213, 195, 0.2);
    color: var(--accent-teal);
    border: 1px solid rgba(136, 213, 195, 0.3);
}

.settings-toast.error {
    background-color: rgba(255, 139, 148, 0.2);
    color: var(--accent-pink);
    border: 1px solid rgba(255, 139, 148, 0.3);
}

/* ===== Dashboard Grid ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.dash-card {
    background-color: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
}

/* ===== Dashboard Card Header (shared by both states) ===== */
.dash-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.dash-card-header-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background-color: rgba(255, 176, 136, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dash-card-header-icon i {
    font-size: 0.95rem;
    color: var(--accent-peach);
}

.dash-card-header-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dash-card-header-badges {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Status badges for cards */
.status-badge.monitoring {
    color: var(--accent-teal);
}

.status-badge.monitoring .status-dot {
    background-color: var(--accent-teal);
}

.status-badge.inactive {
    color: var(--text-muted);
}

.status-badge.inactive .status-dot {
    background-color: var(--text-muted);
}

.status-badge.configured {
    color: var(--accent-peach);
}

.status-badge.configured .status-dot {
    background-color: var(--accent-peach);
}

.dash-card-live-badge {
    background-color: var(--accent-pink);
    color: #fff;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: 4px;
    display: inline-block;
}

/* ===== Inactive Card Body ===== */
.dash-card-inactive-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px 32px;
    text-align: center;
}

.dash-card-inactive-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background-color: rgba(255, 176, 136, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.dash-card-inactive-icon i {
    font-size: 1.5rem;
    color: var(--accent-peach);
    opacity: 0.4;
}

.dash-card-inactive-message {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.btn-start-monitoring {
    background-color: var(--accent-peach);
    color: #1a1a1a;
    border: none;
    padding: 12px 32px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.15s ease;
    font-family: inherit;
}

.btn-start-monitoring:hover {
    background-color: #ffc4a8;
}

.dash-card-inactive-links {
    margin-top: 16px;
    display: flex;
    gap: 16px;
}

.dash-card-inactive-links a {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.dash-card-inactive-links a:hover {
    color: var(--text-primary);
}

/* ===== Monitoring Card Body ===== */
.dash-card-preview {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-input);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dash-card-icon-placeholder {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background-color: rgba(255, 176, 136, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.dash-card-icon-placeholder i {
    font-size: 1.6rem;
    color: var(--accent-peach);
    opacity: 0.5;
}

.dash-card-preview .dash-card-live-badge {
    position: absolute;
    top: 12px;
    left: 12px;
}

.dash-card-monitoring-info {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.dash-card-db-level {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-peach);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.dash-card-meter-bar {
    flex: 1;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.dash-card-meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-peach), var(--accent-pink));
    transition: width 0.15s ease;
    width: 0%;
}

/* ===== Dashboard Card Actions ===== */
.dash-card-actions {
    display: flex;
    gap: 0;
}

.btn-dash-action {
    flex: 1;
    padding: 14px 8px;
    border: none;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.15s ease;
    font-family: inherit;
}

.btn-dash-mute {
    background-color: var(--accent-teal);
    color: #1a1a1a;
}

.btn-dash-mute:hover {
    background-color: #9ce0d0;
}

.btn-dash-mute.muted {
    background-color: rgba(255, 176, 136, 0.15);
    color: var(--accent-peach);
}

.btn-dash-mute.muted:hover {
    background-color: rgba(255, 176, 136, 0.25);
}

.btn-dash-stop {
    background-color: rgba(255, 139, 148, 0.15);
    color: var(--accent-pink);
}

.btn-dash-stop:hover {
    background-color: rgba(255, 139, 148, 0.25);
}

.dash-card-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
}

.dash-card-video-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-muted);
    font-size: 1.5rem;
    z-index: 2;
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .main-content {
        padding: 24px 20px;
    }

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

@media (max-width: 767px) {
    .sidebar {
        width: 60px;
    }

    .sidebar-logo,
    .sidebar-logo-icon,
    .sidebar-link span,
    .sidebar-footer {
        display: none;
    }

    .sidebar-header {
        padding: 16px;
        text-align: center;
        border-bottom: none;
    }

    .sidebar-link {
        justify-content: center;
        padding: 12px;
        border-left: none;
    }

    .sidebar-link.active {
        border-left: none;
        position: relative;
    }

    .sidebar-link.active::before {
        content: "";
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 24px;
        background-color: var(--accent-peach);
        border-radius: 0 4px 4px 0;
    }

    .sidebar-link i {
        font-size: 1.3rem;
    }

    .main-wrapper {
        margin-left: 60px;
    }

    .main-content {
        padding: 16px;
    }

    .page-title {
        font-size: 22px;
    }

    .audio-level-value {
        font-size: 36px;
    }

    .settings-section-title {
        font-size: 18px;
    }

    .content-card {
        padding: 20px;
    }
}

/* ===== Override Bootstrap for dark theme ===== */
.btn:focus,
.btn:active:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: none;
}

.row {
    --bs-gutter-x: 1.5rem;
}

/* ===== PWA: Sound Alert Animation ===== */
@keyframes alertPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 139, 148, 0); }
    50% { box-shadow: 0 0 0 6px rgba(255, 139, 148, 0.35); }
}

.dash-card.alerting {
    animation: alertPulse 0.5s ease 4;
    border: 2px solid var(--accent-pink);
}

/* ===== PWA: Install Banner ===== */
.pwa-install-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: rgba(136, 213, 195, 0.1);
    border: 1px solid rgba(136, 213, 195, 0.2);
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 20px;
}

.pwa-install-banner-text {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pwa-install-banner-text strong {
    color: var(--text-primary);
}

.btn-pwa-install {
    background-color: var(--accent-teal);
    color: #1a1a1a;
    border: none;
    padding: 8px 16px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
    transition: background-color 0.15s ease;
}

.btn-pwa-install:hover {
    background-color: #9ce0d0;
}

.btn-pwa-dismiss {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 1rem;
    line-height: 1;
}

.pwa-install-steps {
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.pwa-install-steps i {
    font-size: 0.75rem;
    vertical-align: middle;
}