/* Tema escuro inspirado no layout UptimeRobot */
:root {
    --color-bg: #0b1220;
    --color-panel: rgba(12, 18, 31, 0.95);
    --color-panel-alt: rgba(17, 26, 43, 0.85);
    --color-card: rgba(18, 27, 45, 0.9);
    --color-card-border: rgba(99, 102, 241, 0.18);
    --color-card-hover: rgba(30, 41, 59, 0.95);
    --color-text: #e2e8f0;
    --color-muted: #94a3b8;
    --color-up: #22c55e;
    --color-down: #ef4444;
    --color-paused: #facc15;
    --color-accent: #6366f1;
    --color-gradient: radial-gradient(circle at top left, rgba(79, 70, 229, 0.35), transparent 60%), radial-gradient(circle at bottom right, rgba(16, 185, 129, 0.25), transparent 45%), #0b1220;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background: var(--color-gradient);
    color: var(--color-text);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

.app-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: linear-gradient(180deg, rgba(17, 24, 39, 0.95), rgba(12, 19, 34, 0.98));
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    border-right: 1px solid rgba(99, 102, 241, 0.15);
}

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #22c55e, #4ade80);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.6);
}

.sidebar__brand strong {
    font-size: 18px;
}

.sidebar__brand small {
    color: var(--color-muted);
}

.sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--color-muted);
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
    background: rgba(99, 102, 241, 0.18);
    color: var(--color-text);
}

.sidebar__footer {
    margin-top: auto;
    border-top: 1px solid rgba(99, 102, 241, 0.12);
    padding-top: 24px;
}

.app-main {
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(16px);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.6));
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px 0 32px;
}

.topbar h1 {
    margin: 0;
    font-size: 28px;
}

.topbar__right {
    display: flex;
    gap: 12px;
}

.app-content {
    padding: 24px 32px 48px 32px;
}

.public-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px 24px;
}

.card {
    background: var(--color-card);
    border-radius: 18px;
    padding: 24px;
    border: 1px solid var(--color-card-border);
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.04);
    margin-bottom: 24px;
}

.card h2,
.card h3 {
    margin-top: 0;
    margin-bottom: 16px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(99, 102, 241, 0.35);
}

.button.secondary {
    background: rgba(148, 163, 184, 0.2);
    color: var(--color-text);
}

.button.success { background: linear-gradient(135deg, #22c55e, #4ade80); }
.button.danger { background: linear-gradient(135deg, #ef4444, #f97316); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(148, 163, 184, 0.2);
    color: var(--color-muted);
}

.badge.up { background: rgba(34, 197, 94, 0.15); color: #4ade80; }
.badge.down { background: rgba(239, 68, 68, 0.18); color: #f87171; }
.badge.paused { background: rgba(250, 204, 21, 0.2); color: #facc15; }

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
}

.monitor-list {
    background: rgba(15, 23, 42, 0.65);
    border-radius: 18px;
    border: 1px solid rgba(99, 102, 241, 0.12);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.35);
}

.monitor-list__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.monitor-list__header h2 {
    margin: 0;
    font-size: 22px;
}

.monitor-list__header p {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 14px;
}

.monitor-list__items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.monitor-row {
    display: grid;
    grid-template-columns: minmax(0, 320px) 1fr;
    align-items: center;
    gap: 20px;
    padding: 18px 20px;
    background: rgba(30, 41, 59, 0.55);
    border-radius: 16px;
    border: 1px solid transparent;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.monitor-row:hover {
    transform: translateX(6px);
    border-color: rgba(99, 102, 241, 0.36);
    background: var(--color-card-hover);
}

.monitor-row__title {
    display: flex;
    align-items: center;
    gap: 14px;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-muted);
    box-shadow: 0 0 10px rgba(148, 163, 184, 0.4);
}

.status-dot.up { background: #22c55e; box-shadow: 0 0 10px rgba(34, 197, 94, 0.6); }
.status-dot.down { background: #ef4444; box-shadow: 0 0 10px rgba(239, 68, 68, 0.6); }
.status-dot.paused { background: #facc15; box-shadow: 0 0 10px rgba(250, 204, 21, 0.5); }

.monitor-row strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
}

.monitor-row small {
    color: var(--color-muted);
}

.monitor-row__meta {
    display: grid;
    gap: 8px;
}

.uptime-bar {
    position: relative;
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.18);
    overflow: hidden;
}

.uptime-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, rgba(34, 197, 94, 0.8), rgba(45, 212, 191, 0.8));
}

.monitor-row__stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    font-size: 12px;
    color: var(--color-muted);
}

.monitor-row__stats span strong {
    display: block;
    font-size: 14px;
    color: var(--color-text);
}

.summary-panel {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.summary-card {
    background: rgba(17, 24, 39, 0.7);
    border-radius: 18px;
    padding: 20px;
    border: 1px solid rgba(99, 102, 241, 0.15);
}

.summary-card h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.summary-status {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.summary-status div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.summary-metric {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    font-size: 14px;
    color: var(--color-muted);
}

.summary-metric strong {
    color: var(--color-text);
    font-size: 18px;
}

.detail-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 24px;
}

.detail-hero__info {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.detail-hero__info h2 {
    margin: 0 0 4px;
}

.detail-hero__info p {
    margin: 0;
    color: var(--color-muted);
}

.detail-actions {
    display: flex;
    gap: 12px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    background: rgba(17, 24, 39, 0.76);
    border-radius: 16px;
    padding: 18px;
    border: 1px solid rgba(99, 102, 241, 0.12);
}

.metric-card span {
    display: block;
    font-size: 12px;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.metric-card strong {
    display: block;
    margin-top: 6px;
    font-size: 20px;
}

.chart-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.chart-card {
    height: 320px;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 18px;
    padding: 20px;
}

.chart-card canvas {
    width: 100% !important;
    height: 100% !important;
}

.table-card {
    background: rgba(15, 23, 42, 0.7);
    border-radius: 18px;
    border: 1px solid rgba(99, 102, 241, 0.12);
    padding: 20px;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th,
.table td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.table thead {
    color: var(--color-muted);
    text-transform: uppercase;
    font-size: 12px;
}

.table tbody tr:hover {
    background: rgba(30, 41, 59, 0.45);
}

.incident-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.incident-status.open { color: #f87171; }
.incident-status.closed { color: #4ade80; }

.form {
    display: grid;
    gap: 18px;
}

.form-row {
    display: flex;
    gap: 18px;
}

.form-row .form-control {
    flex: 1;
}

.form-control label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-control input,
.form-control select,
.form-control textarea {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.6);
    color: var(--color-text);
}

.form-control input:focus,
.form-control select:focus,
.form-control textarea:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.45);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.toggle-mode {
    background: rgba(148, 163, 184, 0.15);
    border: none;
    color: var(--color-text);
    padding: 8px 16px;
    border-radius: 999px;
    cursor: pointer;
}

.alert {
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.alert.success {
    background: rgba(34, 197, 94, 0.12);
    color: #4ade80;
}

.alert.error {
    background: rgba(239, 68, 68, 0.12);
    color: #f87171;
}

.text-error {
    display: block;
    font-size: 12px;
    color: #f87171;
    margin-top: 6px;
}

.login-wrapper {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.4), rgba(16, 185, 129, 0.35));
}

.login-card {
    width: 100%;
    max-width: 380px;
    background: rgba(15, 23, 42, 0.85);
    border-radius: 18px;
    padding: 32px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.45);
}

.login-card h1 {
    margin-top: 0;
    margin-bottom: 18px;
}

.monitor-list__empty {
    padding: 40px;
    text-align: center;
    color: var(--color-muted);
}

.table-responsive {
    max-height: 320px;
    overflow: auto;
}

.table-responsive::-webkit-scrollbar {
    width: 8px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 999px;
}

@media (max-width: 1100px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .summary-panel {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .summary-panel .summary-card {
        flex: 1 1 240px;
    }
}

@media (max-width: 920px) {
    .app-shell {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: sticky;
        top: 0;
        z-index: 10;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .sidebar__nav,
    .sidebar__footer {
        display: none;
    }
    .app-content {
        padding: 24px;
    }
    .monitor-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 24px;
    }
    .detail-hero {
        flex-direction: column;
        align-items: flex-start;
    }
    .detail-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    .detail-actions .button {
        flex: 1;
    }
    .form-row {
        flex-direction: column;
    }
}