:root {
    --font-sans: "Inter", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --color-bg: #090c16;
    --color-surface: #121729;
    --color-surface-alt: #0d1120;
    --color-border: #232a44;
    --color-border-strong: #333c5e;
    --color-text: #e8ebf6;
    --color-text-muted: #8b92b0;
    --color-text-faint: #5b6285;

    --color-primary: #22d3ee;
    --color-primary-dark: #0ea5c4;
    --color-primary-light: rgba(34, 211, 238, 0.14);
    --color-primary-rgb: 34, 211, 238;

    --color-danger: #f43f5e;
    --color-danger-light: rgba(244, 63, 94, 0.16);
    --color-danger-rgb: 244, 63, 94;
    --color-success: #34d399;
    --color-success-light: rgba(52, 211, 153, 0.14);
    --color-warning: #fbbf24;
    --color-warning-light: rgba(251, 191, 36, 0.14);

    --sidebar-width: 244px;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 20px -4px rgba(0, 0, 0, 0.5), 0 2px 8px -2px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.65), 0 8px 16px -8px rgba(0, 0, 0, 0.45);

    --ease: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

[hidden] {
    display: none !important;
}

* {
    box-sizing: border-box;
}

html {
    scrollbar-color: var(--color-border-strong) transparent;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-strong);
    border-radius: 999px;
    border: 2px solid transparent;
}

h1 {
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 22px;
    color: #fff;
}

h2 {
    font-size: 1.05rem;
    font-weight: 650;
    letter-spacing: -0.01em;
    margin: 0 0 14px;
    color: #fff;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: linear-gradient(195deg, #0c1020 0%, #10152a 60%, #0d1122 100%);
    border-right: 1px solid var(--color-border);
    color: #a8afcb;
    display: flex;
    flex-direction: column;
    padding: 22px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 750;
    color: #fff;
    letter-spacing: -0.01em;
    padding: 4px 10px 22px;
}

.brand-icon {
    width: 26px;
    height: 26px;
    color: var(--color-primary);
    flex-shrink: 0;
    filter: drop-shadow(0 0 10px rgba(var(--color-primary-rgb), 0.65));
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex-grow: 1;
}

.sidebar nav a {
    color: #9198b8;
    text-decoration: none;
    padding: 10px 14px;
    font-size: 0.89rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: background var(--ease), color var(--ease);
}

.sidebar nav a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.sidebar nav a.active {
    background: linear-gradient(90deg, rgba(var(--color-primary-rgb), 0.2), rgba(var(--color-primary-rgb), 0.04));
    color: #fff;
    font-weight: 650;
    box-shadow: inset 3px 0 0 var(--color-primary), 0 0 16px -6px rgba(var(--color-primary-rgb), 0.6);
}

.session-info {
    padding: 16px 14px 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    margin-top: 10px;
    font-size: 0.85rem;
}

.session-user {
    font-weight: 650;
    color: #fff;
}

.session-role {
    color: #757ea3;
    margin-bottom: 8px;
    font-size: 0.8rem;
}

.content {
    flex-grow: 1;
    padding: 32px 36px 60px;
    max-width: 1220px;
}

/* Login page */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(55% 50% at 20% 10%, rgba(34, 211, 238, 0.14), transparent 60%),
        radial-gradient(45% 40% at 88% 90%, rgba(99, 102, 241, 0.1), transparent 60%),
        var(--color-bg);
    padding: 24px;
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 36px 34px;
    width: 380px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), #818cf8);
    box-shadow: 0 0 18px rgba(var(--color-primary-rgb), 0.55);
}

.login-card h1 {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.login-card .subtitle {
    margin: 0 0 6px;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

label {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 0.84rem;
    font-weight: 550;
    color: var(--color-text-muted);
}

input,
select {
    font: inherit;
    padding: 10px 12px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface-alt);
    color: var(--color-text);
    transition: border-color var(--ease), box-shadow var(--ease);
}

input::placeholder {
    color: var(--color-text-faint);
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.18);
}

button {
    font: inherit;
    cursor: pointer;
}

button[type="submit"],
.login-card button[type="submit"] {
    background: linear-gradient(135deg, var(--color-primary), #0ea5c4);
    color: #04222b;
    border: none;
    border-radius: var(--radius-sm);
    padding: 11px 14px;
    font-weight: 700;
    box-shadow: 0 6px 18px -4px rgba(var(--color-primary-rgb), 0.5);
    transition: transform var(--ease), box-shadow var(--ease), filter var(--ease);
}

button[type="submit"]:hover,
.login-card button[type="submit"]:hover {
    filter: brightness(1.08);
    box-shadow: 0 8px 22px -4px rgba(var(--color-primary-rgb), 0.65);
}

button[type="submit"]:active {
    transform: translateY(1px);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
    filter: none;
}

.link-button {
    background: none;
    border: none;
    color: var(--color-primary);
    padding: 0;
    font-size: 0.85rem;
    font-weight: 600;
    transition: color var(--ease);
}

.link-button:hover {
    color: #67e4f7;
    text-decoration: underline;
}

.error-text {
    color: var(--color-danger);
    font-size: 0.85rem;
    margin: 0;
    font-weight: 550;
}

.error-banner {
    background: var(--color-danger-light);
    color: #fca5b3;
    padding: 13px 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(var(--color-danger-rgb), 0.3);
    font-size: 0.9rem;
    font-weight: 550;
}

.hint {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.page-loading {
    color: var(--color-text-muted);
    padding: 16px 0;
}

/* Stat cards */

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    border-color: var(--color-border-strong);
}

.stat-value {
    font-size: 1.7rem;
    font-weight: 750;
    letter-spacing: -0.01em;
    color: #fff;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-top: 4px;
    font-weight: 550;
}

/* Tables */

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.data-table th {
    background: var(--color-surface-alt);
    color: var(--color-text-muted);
    font-weight: 650;
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr {
    transition: background var(--ease);
}

.data-table tbody tr:hover {
    background: var(--color-surface-alt);
}

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

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

.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 16px;
}

.inline-form input,
.inline-form select {
    flex: 1 1 140px;
}

.inline-form button {
    background: linear-gradient(135deg, var(--color-primary), #0ea5c4);
    color: #04222b;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 12px -3px rgba(var(--color-primary-rgb), 0.45);
    transition: filter var(--ease);
}

.inline-form button:hover {
    filter: brightness(1.08);
}

.badge {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 999px;
    padding: 3px 11px;
    font-size: 0.74rem;
    font-weight: 650;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 3px 11px 3px 9px;
    font-size: 0.74rem;
    font-weight: 650;
    text-transform: capitalize;
}

.status-pill::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.status-pill.status-online {
    background: var(--color-success-light);
    color: var(--color-success);
}

.status-pill.status-away {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.status-pill.status-oncall,
.status-pill.status-transmitting {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.status-pill.status-offline {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text-faint);
}

.mono {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* Map page */

.map-legend {
    display: flex;
    gap: 18px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.map-legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
    box-shadow: 0 0 8px currentColor;
}

#mapView {
    height: 560px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.leaflet-popup-content-wrapper {
    border-radius: var(--radius-sm);
}

/* Reports page — dependency-free CSS bar chart */

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.bar-row {
    display: grid;
    grid-template-columns: 150px 1fr 60px;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
}

.bar-row-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--color-text);
}

.bar-track {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    height: 18px;
    overflow: hidden;
}

.bar-fill {
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    height: 100%;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.5);
}

.bar-row-value {
    text-align: right;
    color: var(--color-text-muted);
}

/* Virtual PTT page */

.ptt-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px 32px;
    max-width: 420px;
}

.ptt-button {
    width: 168px;
    height: 168px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #35e3ff, var(--color-primary-dark) 75%);
    color: #04222b;
    font-size: 1.1rem;
    font-weight: 750;
    border: none;
    user-select: none;
    box-shadow: 0 0 0 6px rgba(var(--color-primary-rgb), 0.12), 0 10px 26px -6px rgba(var(--color-primary-rgb), 0.55);
    transition: box-shadow var(--ease), transform var(--ease), background var(--ease);
}

.ptt-button:not(:disabled):hover {
    transform: translateY(-1px);
}

.ptt-button:not(:disabled):active {
    transform: translateY(1px);
}

.ptt-button.transmitting {
    background: radial-gradient(circle at 35% 30%, #ff7a90, var(--color-danger) 75%);
    color: #2a0410;
    box-shadow: 0 0 0 8px rgba(var(--color-danger-rgb), 0.18), 0 0 40px 4px rgba(var(--color-danger-rgb), 0.55);
    animation: pttPulse 1.4s ease-in-out infinite;
}

@keyframes pttPulse {
    0%, 100% {
        box-shadow: 0 0 0 8px rgba(var(--color-danger-rgb), 0.18), 0 0 40px 4px rgba(var(--color-danger-rgb), 0.55);
    }
    50% {
        box-shadow: 0 0 0 14px rgba(var(--color-danger-rgb), 0.1), 0 0 56px 10px rgba(var(--color-danger-rgb), 0.65);
    }
}

.ptt-button:disabled {
    background: #2a2f45;
    color: var(--color-text-faint);
    box-shadow: none;
}

.ptt-status {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    text-align: center;
}

.ptt-status.holder-me {
    color: var(--color-danger);
    font-weight: 700;
}

.ptt-status.holder-other {
    color: var(--color-warning);
    font-weight: 700;
}

.connection-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--color-text-faint);
    margin-right: 6px;
}

.connection-dot.connected {
    background: var(--color-success);
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.8);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% {
        box-shadow: 0 0 6px rgba(52, 211, 153, 0.6);
    }
    50% {
        box-shadow: 0 0 12px rgba(52, 211, 153, 0.95);
    }
}