:root {
    --bg: #f6f7f9;
    --panel: #ffffff;
    --ink: #17191f;
    --muted: #626a76;
    --line: #dce1e7;
    --accent: #126a5b;
    --accent-2: #284f9e;
    --danger: #b93632;
    --warning: #9b6a12;
    --shadow: 0 10px 28px rgba(20, 25, 32, 0.08);
}

* {
    box-sizing: border-box;
}

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

a {
    color: var(--accent-2);
    font-weight: 700;
    text-decoration: none;
}

.shell {
    max-width: 1240px;
    margin: 0 auto;
    padding: 28px 20px 20px;
}

.topbar {
    min-height: 64px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    color: var(--ink);
    font-weight: 800;
}

.nav {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--muted);
    font-size: 0.92rem;
}

.nav form {
    margin: 0;
}

.app-footer {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px 36px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-size: 0.88rem;
}

.hero,
.summary-grid,
.meta-grid,
.history-grid,
.card {
    margin-bottom: 24px;
}

.hero {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    gap: 20px;
    align-items: end;
}

.eyebrow {
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 800;
}

h1,
h2 {
    margin: 0;
    font-weight: 700;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    line-height: 1;
}

h2 {
    font-size: 1.2rem;
}

.subcopy,
.section-head p,
.card p {
    color: var(--muted);
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

button {
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 12px 18px;
    cursor: pointer;
    font-size: 0.98rem;
    font-weight: 700;
    transition: transform 0.18s ease, opacity 0.18s ease;
}

button:hover {
    transform: translateY(-1px);
}

button.primary {
    background: var(--accent);
    color: #fff7f2;
}

button.secondary {
    background: #e8edf3;
    color: var(--ink);
}

button.ghost {
    background: transparent;
    border-color: var(--line);
    color: var(--ink);
    padding: 8px 12px;
}

button.full {
    width: 100%;
}

.flash,
.card {
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
    border-radius: 8px;
}

.flash {
    padding: 14px 18px;
    margin-bottom: 24px;
}

.flash.compact {
    margin: 0;
    box-shadow: none;
}

.summary-grid,
.meta-grid,
.history-grid {
    display: grid;
    gap: 20px;
}

.summary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

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

.card {
    padding: 22px;
}

.stat-card .label {
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
}

.stat-card .value {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--ink);
}

.stat-card.ok {
    background: rgba(29, 111, 97, 0.12);
}

.stat-card.bad {
    background: rgba(162, 50, 42, 0.12);
}

.stat-card.neutral {
    background: rgba(111, 104, 93, 0.12);
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 16px;
    margin-bottom: 16px;
}

.table-wrap {
    overflow-x: auto;
}

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

th,
td {
    padding: 12px 10px;
    border-top: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
    font-size: 0.95rem;
}

th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 84px;
    padding: 6px 10px;
    border-radius: 8px;
    text-transform: capitalize;
    font-size: 0.82rem;
    font-weight: 700;
}

.badge.online {
    background: rgba(29, 111, 97, 0.18);
    color: var(--accent-2);
}

.badge.offline {
    background: rgba(162, 50, 42, 0.16);
    color: var(--danger);
}

.badge.unknown {
    background: rgba(111, 104, 93, 0.14);
    color: var(--muted);
}

.tight-list {
    margin: 14px 0 0;
    padding-left: 18px;
}

.error-copy {
    margin-top: 6px;
    color: var(--danger);
    font-size: 0.84rem;
}

.role-pill {
    border: 1px solid rgba(18, 106, 91, 0.3);
    background: rgba(18, 106, 91, 0.1);
    color: var(--accent);
    border-radius: 8px;
    padding: 4px 8px;
    font-weight: 800;
}

.auth-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    gap: 28px;
    align-items: start;
    padding-top: 24px;
}

.auth-copy {
    padding-top: 34px;
}

.auth-card {
    display: grid;
    gap: 16px;
}

.monitor-form,
.account-form {
    display: grid;
    grid-template-columns: 1fr 1.3fr 120px 120px auto auto;
    gap: 14px;
    align-items: end;
}

.monitor-form {
    grid-template-columns: 1fr 1.3fr 120px 1fr auto;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
}

.check-row input {
    width: auto;
}

label {
    display: grid;
    gap: 8px;
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 800;
}

input {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 13px;
    color: var(--ink);
    background: #fff;
    font: inherit;
}

input:focus {
    border-color: var(--accent-2);
    box-shadow: 0 0 0 3px rgba(40, 79, 158, 0.15);
    outline: none;
}

.form-switch {
    margin: 0;
    text-align: center;
}

@media (max-width: 980px) {
    .hero,
    .summary-grid,
    .meta-grid,
    .history-grid,
    .auth-layout,
    .monitor-form,
    .account-form {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        justify-content: flex-start;
    }

    .app-footer {
        flex-direction: column;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
        padding: 14px 20px;
    }

    .nav {
        align-items: flex-start;
        flex-wrap: wrap;
    }
}