/* ============== Variables ============== */
:root {
    --color-bg: #0f1419;
    --color-bg-secondary: #1a1f26;
    --color-bg-tertiary: #232a33;
    --color-surface: #2a323d;
    --color-surface-hover: #333d4a;
    --color-border: #3d4754;
    --color-text: #f0f4f8;
    --color-text-secondary: #c4cdd8;
    --color-text-muted: #8899a8;
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-glow: rgba(59, 130, 246, 0.25);
    --color-success: #22c55e;
    --color-success-bg: rgba(34, 197, 94, 0.12);
    --color-warning: #eab308;
    --color-warning-bg: rgba(234, 179, 8, 0.12);
    --color-danger: #ef4444;
    --color-danger-bg: rgba(239, 68, 68, 0.12);
    --color-callsign: #4ade80;
    --color-talkgroup: #60a5fa;
    --color-repeater: #fb923c;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px var(--color-primary-glow);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-display);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-bg);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    color: var(--color-callsign);
}

hr, .divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 2rem 0;
}

/* ============== Layout ============== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-sm {
    max-width: 520px;
}

.main-content {
    flex: 1;
    padding: 2.5rem 0;
}

/* ============== Navbar ============== */
.navbar {
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, rgba(26, 31, 38, 0.95) 100%);
    border-bottom: 1px solid var(--color-border);
    padding: 0.875rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-brand:hover {
    color: var(--color-text);
}

.brand-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 8px var(--color-primary-glow));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

.nav-link.btn-primary {
    background: var(--color-primary);
    color: #fff;
    margin-left: 0.5rem;
}

.nav-link.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}

.nav-logout {
    color: var(--color-text-muted);
}

.nav-logout:hover {
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

.nav-user {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-callsign);
    font-weight: 600;
    background: rgba(74, 222, 128, 0.1);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(74, 222, 128, 0.2);
}

/* ============== Buttons ============== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.375rem;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-sm), 0 0 0 0 var(--color-primary-glow);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
    background: var(--color-surface);
}

.btn-danger {
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--color-danger);
}

.btn-danger:hover {
    background: var(--color-danger);
    border-color: var(--color-danger);
    color: #fff;
}

.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============== Forms ============== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-display);
    font-size: 0.95rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.form-hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.optional {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 0.85em;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    cursor: pointer;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* ============== Cards ============== */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

/* ============== Alerts / Notices ============== */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    border: 1px solid;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-error {
    background: var(--color-danger-bg);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: var(--color-success-bg);
    border-color: rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: rgba(234, 179, 8, 0.3);
    color: #fde047;
}

.alert a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ============== Hero ============== */
.hero {
    text-align: center;
    padding: 5rem 1.5rem;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse at center, var(--color-primary-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============== Features ============== */
.features {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), 0 0 30px var(--color-primary-glow);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============== CTA ============== */
.cta {
    text-align: center;
    padding: 5rem 1.5rem;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.cta h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.cta p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* ============== Auth Pages ============== */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 65vh;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.auth-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.auth-subtitle {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.75rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ============== Dashboard ============== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section {
    margin-bottom: 3rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.section-heading {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

/* ============== Alert Cards ============== */
.alerts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
}

.alert-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-fast);
}

.alert-card:hover {
    border-color: var(--color-text-muted);
}

.alert-card.alert-disabled {
    opacity: 0.5;
}

.alert-card.alert-disabled:hover {
    opacity: 0.7;
}

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

.alert-type-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.625rem;
    border-radius: var(--radius-sm);
}

.alert-type-callsign {
    background: rgba(74, 222, 128, 0.12);
    color: var(--color-callsign);
    border: 1px solid rgba(74, 222, 128, 0.25);
}

.alert-type-talkgroup {
    background: rgba(96, 165, 250, 0.12);
    color: var(--color-talkgroup);
    border: 1px solid rgba(96, 165, 250, 0.25);
}

.alert-type-repeater {
    background: rgba(251, 146, 60, 0.12);
    color: var(--color-repeater);
    border: 1px solid rgba(251, 146, 60, 0.25);
}

.alert-status {
    font-size: 0.8rem;
    font-weight: 600;
}

.status-active {
    color: var(--color-success);
}

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

.alert-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.alert-value {
    margin-bottom: 1rem;
}

.alert-value code {
    font-size: 1rem;
    padding: 0.25rem 0.625rem;
}

.alert-meta {
    display: flex;
    gap: 1.25rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}

.alert-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

/* ============== Empty State ============== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--color-surface);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1.25rem;
    opacity: 0.7;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.625rem;
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

/* ============== History Table ============== */
.history-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.history-table {
    width: 100%;
    border-collapse: collapse;
}

.history-table th,
.history-table td {
    padding: 0.875rem 1.25rem;
    text-align: left;
}

.history-table th {
    background: var(--color-bg-tertiary);
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.history-table td {
    border-bottom: 1px solid var(--color-border);
}

.history-table tr:last-child td {
    border-bottom: none;
}

.history-table tr:hover td {
    background: var(--color-bg-secondary);
}

.time-col {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ============== Info List ============== */
.info-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem 1.5rem;
}

.info-list dt {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.info-list dd {
    font-weight: 600;
    color: var(--color-text);
}

/* ============== Utilities ============== */
.text-muted {
    color: var(--color-text-muted);
}

/* ============== Footer ============== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 2.5rem;
    text-align: center;
}

.footer-content p {
    color: var(--color-text-muted);
    margin: 0;
    font-size: 0.9rem;
}

.footer-sub {
    margin-top: 0.375rem !important;
    font-size: 0.85rem !important;
    opacity: 0.7;
}

/* ============== Responsive ============== */
@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
        padding-top: 0.875rem;
        border-top: 1px solid var(--color-border);
        margin-top: 0.875rem;
    }
    
    .hero {
        padding: 3rem 1.5rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .alerts-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* ============== Animations ============== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-card, .feature-card, .card {
    animation: fadeIn 0.3s ease-out;
}

/* ============== Activity Monitor ============== */
.page-header-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.monitor-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
}

.monitor-status.connected {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.monitor-status.disconnected {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.monitor-status.connected .status-dot {
    animation: pulse 2s infinite;
    box-shadow: 0 0 8px var(--color-success);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Monitored Items Grid */
.monitored-items-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.monitored-item-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.875rem 1rem;
    transition: all var(--transition-fast);
    position: relative;
}

.monitored-item-card:hover {
    border-color: var(--color-text-muted);
}

.monitored-item-card.type-callsign {
    border-left: 3px solid var(--color-callsign);
}

.monitored-item-card.type-talkgroup {
    border-left: 3px solid var(--color-talkgroup);
}

.monitored-item-card.type-repeater {
    border-left: 3px solid var(--color-repeater);
}

.item-type-icon {
    font-size: 1.25rem;
    opacity: 0.8;
}

.item-details {
    flex: 1;
    min-width: 0;
}

.item-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-value {
    margin-top: 0.25rem;
}

.item-value code {
    font-size: 0.8rem;
    padding: 0.125rem 0.5rem;
}

.item-delete {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.monitored-item-card:hover .item-delete {
    opacity: 1;
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color var(--transition-fast);
}

.btn-icon:hover {
    color: var(--color-danger);
}

/* Activity Feed */
.feed-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.entry-count {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-left: 0.5rem;
}

.activity-feed {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    height: 400px;
    overflow-y: auto;
    position: relative;
}

.feed-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.feed-empty-icon {
    font-size: 3rem;
    opacity: 0.5;
    margin-bottom: 1rem;
    animation: pulse 3s infinite;
}

.feed-empty p {
    margin: 0;
    color: var(--color-text-muted);
}

.activity-entry {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    transition: background var(--transition-fast);
}

.activity-entry:hover {
    background: var(--color-bg-secondary);
}

.activity-entry:last-child {
    border-bottom: none;
}

.activity-timestamp {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.activity-source {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.activity-callsign {
    color: var(--color-callsign);
    font-weight: 600;
}

.activity-id {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.activity-arrow {
    color: var(--color-text-muted);
}

.activity-talkgroup {
    color: var(--color-talkgroup);
    font-weight: 500;
}

.activity-via {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.activity-repeater {
    color: var(--color-repeater);
    font-weight: 500;
}

.activity-duration {
    margin-left: auto;
    background: var(--color-bg);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--color-text-muted);
}

.entry-new {
    animation: slideIn 0.3s ease-out;
    background: rgba(59, 130, 246, 0.1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.btn-active {
    background: var(--color-warning-bg) !important;
    border-color: var(--color-warning) !important;
    color: var(--color-warning) !important;
}

/* Empty State Small */
.empty-state-sm {
    padding: 2.5rem 2rem;
}

.empty-state-sm .empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.empty-state-sm h3 {
    font-size: 1rem;
}

.empty-state-sm p {
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.2s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

/* Type Selector */
.type-selector {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.type-option {
    cursor: pointer;
}

.type-option input {
    display: none;
}

.type-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.type-option input:checked + .type-btn {
    border-color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-text);
}

.type-btn.type-callsign:hover,
.type-option input:checked + .type-btn.type-callsign {
    border-color: var(--color-callsign);
    color: var(--color-callsign);
}

.type-btn.type-talkgroup:hover,
.type-option input:checked + .type-btn.type-talkgroup {
    border-color: var(--color-talkgroup);
    color: var(--color-talkgroup);
}

.type-btn.type-repeater:hover,
.type-option input:checked + .type-btn.type-repeater {
    border-color: var(--color-repeater);
    color: var(--color-repeater);
}

/* ============== Professional Monitor Redesign ============== */

/* Monitored Items Grid */
.monitored-items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

/* Monitored Item Card */
.monitored-item-card {
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.monitored-item-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-border);
    transition: background var(--transition-fast);
}

.monitored-item-card.type-talkgroup::before { background: var(--color-talkgroup); }
.monitored-item-card.type-callsign::before { background: var(--color-callsign); }
.monitored-item-card.type-repeater::before { background: var(--color-repeater); }

.monitored-item-card:hover {
    border-color: var(--color-text-muted);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.monitored-item-card.focused {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-glow), var(--shadow-md);
}

.monitored-item-card.card-flash {
    animation: cardFlash 0.3s ease-out;
}

@keyframes cardFlash {
    0%, 100% { background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-tertiary) 100%); }
    50% { background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, var(--color-bg-tertiary) 100%); }
}

/* Card Main Content */
.card-main {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.card-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.card-icon.type-talkgroup {
    background: rgba(96, 165, 250, 0.15);
    color: var(--color-talkgroup);
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.card-icon.type-callsign {
    background: rgba(74, 222, 128, 0.15);
    color: var(--color-callsign);
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.card-icon.type-repeater {
    background: rgba(251, 146, 60, 0.15);
    color: var(--color-repeater);
    border: 1px solid rgba(251, 146, 60, 0.3);
}

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

.card-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.card-value {
    font-family: var(--font-mono);
    color: var(--color-text-secondary);
}

.card-separator {
    opacity: 0.5;
}

.card-last-heard {
    color: var(--color-text-muted);
}

.card-stats {
    display: flex;
    align-items: center;
}

.card-count {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    background: var(--color-bg);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-md);
    min-width: 36px;
    text-align: center;
}

/* Card Actions */
.card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.monitored-item-card:hover .card-actions {
    opacity: 1;
}

.card-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-btn:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.card-btn.delete-btn:hover {
    border-color: var(--color-danger);
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

.card-btn.focus-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-glow);
}

.card-delete-form {
    display: contents;
}

/* ============== Filter Bar ============== */
.feed-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.875rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    align-items: center;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex: 1;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-chip:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
    background: var(--color-bg-tertiary);
}

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

.filter-chip.type-talkgroup.active {
    background: var(--color-talkgroup);
    border-color: var(--color-talkgroup);
}

.filter-chip.type-callsign.active {
    background: var(--color-callsign);
    border-color: var(--color-callsign);
    color: var(--color-bg);
}

.filter-chip.type-repeater.active {
    background: var(--color-repeater);
    border-color: var(--color-repeater);
    color: var(--color-bg);
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-wrap: wrap;
}

.filter-types {
    display: flex;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.filter-type-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.filter-type-btn:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.filter-type-btn:hover {
    color: var(--color-text);
    background: var(--color-bg-secondary);
}

.filter-type-btn.active {
    background: var(--color-primary);
    color: #fff;
}

.filter-count {
    font-size: 0.65rem;
    background: rgba(255,255,255,0.2);
    padding: 0.125rem 0.375rem;
    border-radius: 100px;
    min-width: 18px;
    text-align: center;
}

.filter-type-btn:not(.active) .filter-count {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.filter-search {
    padding: 0.5rem 0.875rem;
    font-size: 0.8rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    width: 150px;
    transition: all var(--transition-fast);
}

.filter-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-glow);
}

.filter-search::placeholder {
    color: var(--color-text-muted);
}

.btn-ghost {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-ghost:hover {
    color: var(--color-text);
}

/* ============== Activity Feed ============== */
.activity-feed {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    max-height: 500px;
    overflow-y: auto;
    position: relative;
}

.feed-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem;
}

.feed-empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.feed-empty-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.feed-empty-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Activity Entry */
.activity-entry {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast);
    position: relative;
}

.activity-entry:nth-child(even) {
    background: rgba(0, 0, 0, 0.15);
}

.activity-entry:hover {
    background: var(--color-bg-secondary);
}

.activity-entry:last-child {
    border-bottom: none;
}

.activity-entry.filtered-out {
    display: none !important;
}

/* Entry Type Indicator */
.entry-type-indicator {
    width: 4px;
    height: 32px;
    border-radius: 2px;
    flex-shrink: 0;
}

.entry-type-indicator.type-talkgroup { background: var(--color-talkgroup); }
.entry-type-indicator.type-callsign { background: var(--color-callsign); }
.entry-type-indicator.type-repeater { background: var(--color-repeater); }

/* Entry Content */
.entry-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.entry-callsign {
    font-weight: 700;
    color: var(--color-callsign);
    font-size: 0.9rem;
}

.entry-id {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.entry-arrow {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.entry-talkgroup {
    font-weight: 600;
    color: var(--color-talkgroup);
    font-size: 0.9rem;
}

.entry-via {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.entry-duration {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-bg);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* Pause Button Active State */
#pause-btn.paused {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: var(--color-bg);
}

/* ============== Responsive ============== */
@media (max-width: 768px) {
    .monitored-items-grid {
        grid-template-columns: 1fr;
    }

    .card-actions {
        opacity: 1;
    }

    .feed-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-chips {
        order: 2;
    }

    .filter-controls {
        order: 1;
        width: 100%;
        justify-content: space-between;
        margin-bottom: 0.5rem;
    }

    .filter-search {
        flex: 1;
        width: auto;
    }

    .activity-entry {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .entry-duration {
        margin-left: 0;
    }

    .page-header-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .feed-controls {
        flex-wrap: wrap;
    }
}