:root {
    --navy: #0b1f3a;
    --navy-light: #153253;
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --background: #f3f6fb;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #10213d;
    --muted: #64748b;
    --danger: #dc2626;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system,
        BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 245px minmax(0, 1fr);
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 24px 18px;
    background: var(--navy);
    color: white;
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 32px;
    color: white;
    font-size: 20px;
    font-weight: 800;
    text-decoration: none;
}

.brand-mark,
.login-logo {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: var(--blue);
    color: white;
    font-weight: 900;
}

.sidebar nav {
    display: grid;
    gap: 7px;
}

.sidebar nav a {
    padding: 12px 14px;
    border-radius: 10px;
    color: rgba(255, 255, 255, .75);
    text-decoration: none;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: var(--navy-light);
    color: white;
}

.logout-link {
    margin-top: auto;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 10px;
    text-align: center;
    color: white;
    text-decoration: none;
}

.content {
    min-width: 0;
    padding: 32px;
}

.top-row,
.camera-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.page-heading h1,
.camera-title-row h1 {
    margin: 0;
    font-size: 30px;
}

.page-heading p,
.camera-title-row p {
    margin: 7px 0 0;
    color: var(--muted);
}

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 11px 17px;
    border: 0;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
}

.button.primary {
    background: var(--blue);
    color: white;
}

.button.primary:hover {
    background: var(--blue-dark);
}

.button.secondary {
    border: 1px solid var(--border);
    background: white;
    color: var(--text);
}

.button.danger {
    background: var(--danger);
    color: white;
}

.button.full {
    width: 100%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin: 28px 0;
}

.stat-card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
}

.stat-card span {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
}

.stat-card strong {
    font-size: 27px;
}

.camera-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.camera-card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: 0 8px 25px rgba(15, 35, 65, .06);
    color: inherit;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}

.camera-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(15, 35, 65, .12);
}

.camera-preview {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 16 / 9;
    background: #111c2d;
}

.camera-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.empty-camera {
    color: rgba(255, 255, 255, .5);
    font-size: 35px;
    font-weight: 900;
}

.camera-badge {
    position: absolute;
    top: 11px;
    left: 11px;
    padding: 6px 9px;
    border-radius: 999px;
    background: rgba(0, 0, 0, .7);
    color: white;
    font-size: 11px;
}

.camera-body {
    padding: 15px;
}

.camera-body h2 {
    margin: 0;
    font-size: 17px;
}

.camera-body p {
    margin: 6px 0 14px;
    color: var(--muted);
}

.camera-footer {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    color: var(--muted);
    font-size: 12px;
}

.back-link {
    display: inline-block;
    margin-bottom: 22px;
    color: var(--blue);
    font-weight: 700;
    text-decoration: none;
}

.camera-details {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin: 25px 0;
}

.camera-details div {
    padding: 17px;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: white;
}

.camera-details span,
.camera-details strong {
    display: block;
}

.camera-details span {
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 12px;
}

.day-section {
    margin-top: 30px;
}

.day-section h2 {
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.event-card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: white;
}

.event-card img,
.event-card video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: #111;
}

.event-body {
    display: flex;
    justify-content: space-between;
    padding: 12px;
}

.event-body span {
    color: var(--muted);
    font-size: 12px;
}

.empty-state {
    margin-top: 25px;
    padding: 55px 25px;
    border: 1px dashed #cbd5e1;
    border-radius: 15px;
    background: white;
    text-align: center;
    color: var(--muted);
}

dialog {
    width: min(480px, calc(100% - 30px));
    padding: 0;
    border: 0;
    border-radius: 18px;
    box-shadow: 0 30px 90px rgba(0, 0, 0, .3);
}

dialog::backdrop {
    background: rgba(4, 18, 36, .7);
}

.dialog-content {
    padding: 26px;
}

.dialog-content h2 {
    margin-top: 0;
}

.dialog-content label,
.login-card label {
    display: block;
    margin-top: 15px;
    font-weight: 650;
}

.dialog-content input,
.login-card input {
    width: 100%;
    margin-top: 7px;
    padding: 13px;
    border: 1px solid #cbd5e1;
    border-radius: 9px;
    font-size: 16px;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 22px;
}

.danger-zone {
    padding: 20px 26px 26px;
    border-top: 1px solid var(--border);
}

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top, #e3ebfb, #f4f7fb 55%);
}

.login-card {
    width: min(420px, calc(100% - 30px));
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: white;
    box-shadow: 0 25px 75px rgba(11, 31, 58, .15);
}

.login-card h1 {
    margin-bottom: 5px;
}

.login-card p {
    margin-top: 0;
    color: var(--muted);
}

.login-card .button {
    margin-top: 22px;
}

.alert {
    margin: 15px 0;
    padding: 13px;
    border-radius: 9px;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
}

@media (max-width: 1250px) {
    .camera-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 950px) {
    .camera-grid,
    .events-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .camera-details,
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .app-shell {
        display: block;
    }

    .sidebar {
        position: static;
        height: auto;
    }

    .sidebar nav {
        display: flex;
        overflow-x: auto;
    }

    .logout-link {
        margin-top: 18px;
    }

    .content {
        padding: 20px;
    }

    .top-row,
    .camera-title-row {
        flex-direction: column;
    }

    .camera-grid,
    .events-grid,
    .stats-grid,
    .camera-details {
        grid-template-columns: 1fr;
    }
}