:root {
    color-scheme: light;
    --bg: #f1f3f8;
    --bg-pattern: radial-gradient(circle at 10% -10%, #dbe4ff 0%, transparent 45%),
                  radial-gradient(circle at 110% 10%, #e3f3ff 0%, transparent 40%);
    --card: #ffffff;
    --card-border: #e7e9f0;
    --text: #1a1d29;
    --text-muted: #6b7280;
    --border: #e7e9f0;
    --accent: #4f46e5;
    --accent-2: #4338ca;
    --accent-soft: #eef0ff;
    --accent-contrast: #ffffff;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 8px 24px -8px rgba(16, 24, 40, 0.18), 0 2px 6px rgba(16, 24, 40, 0.06);
    --radius: 14px;
    --radius-sm: 8px;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --bg: #0f1117;
        --bg-pattern: radial-gradient(circle at 10% -10%, #1e2140 0%, transparent 45%),
                      radial-gradient(circle at 110% 10%, #10233a 0%, transparent 40%);
        --card: #171923;
        --card-border: #272b3a;
        --text: #eef0f5;
        --text-muted: #9aa0b2;
        --border: #272b3a;
        --accent: #6d66f0;
        --accent-2: #857ef5;
        --accent-soft: #211f3d;
        --accent-contrast: #ffffff;
        --danger: #f87171;
        --danger-soft: #3a1a1c;
        --success: #4ade80;
        --success-soft: #11301f;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 12px 32px -12px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #0f1117;
    --bg-pattern: radial-gradient(circle at 10% -10%, #1e2140 0%, transparent 45%),
                  radial-gradient(circle at 110% 10%, #10233a 0%, transparent 40%);
    --card: #171923;
    --card-border: #272b3a;
    --text: #eef0f5;
    --text-muted: #9aa0b2;
    --border: #272b3a;
    --accent: #6d66f0;
    --accent-2: #857ef5;
    --accent-soft: #211f3d;
    --accent-contrast: #ffffff;
    --danger: #f87171;
    --danger-soft: #3a1a1c;
    --success: #4ade80;
    --success-soft: #11301f;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 12px 32px -12px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    background-image: var(--bg-pattern);
    background-attachment: fixed;
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

/* Topbar */

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    background: color-mix(in srgb, var(--card) 88%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
    flex-wrap: wrap;
}

.topbar strong {
    font-weight: 700;
    letter-spacing: -0.01em;
    font-size: 15px;
    white-space: nowrap;
}

.topbar nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.topbar nav span {
    color: var(--text-muted);
    font-size: 13px;
    margin-right: 10px;
    padding-right: 10px;
    border-right: 1px solid var(--border);
}

.topbar nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 7px 12px;
    border-radius: 999px;
    transition: background-color 0.15s ease, color 0.15s ease;
    white-space: nowrap;
}

.topbar nav a:hover {
    color: var(--accent);
    background: var(--accent-soft);
}

/* Layout */

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 28px 16px 48px;
}

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.login-wrap {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.login-wrap .card {
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-md);
    animation: rise 0.35s ease;
}

.login-wrap .card h1 {
    text-align: center;
    margin-bottom: 4px;
}

.login-sub {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    margin: 0 0 22px;
}

@keyframes rise {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

h1 {
    font-size: 21px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 18px;
}

label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
}

input[type=text],
input[type=password],
select {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type=text]:focus,
input[type=password]:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

button, .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--accent);
    background-image: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: var(--accent-contrast);
    border: none;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: transform 0.1s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

button:hover, .btn:hover { opacity: 0.92; }
button:active, .btn:active { transform: translateY(1px); }

button.danger, .btn.danger {
    background-image: none;
    background: var(--danger);
}

button.secondary, .btn.secondary {
    background-image: none;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    box-shadow: none;
}

button.secondary:hover, .btn.secondary:hover {
    color: var(--text);
    border-color: var(--text-muted);
    opacity: 1;
}

/* Tabela / responsiva */

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

th, td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    vertical-align: middle;
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge.ok { background: var(--success-soft); color: var(--success); }
.badge.off { background: var(--danger-soft); color: var(--danger); }

.alert {
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 18px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert.error { background: var(--danger-soft); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.alert.success { background: var(--success-soft); color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, transparent); }

.hint {
    color: var(--text-muted);
    font-size: 13px;
}

code {
    background: var(--accent-soft);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12.5px;
}

/* Responsivo: tabela vira "cards" empilhados no celular */

@media (max-width: 720px) {
    .container { padding: 20px 12px 40px; }
    .card { padding: 18px; border-radius: 12px; }

    .topbar { padding: 12px 16px; }
    .topbar nav span { border-right: none; padding-right: 0; margin-right: 0; width: 100%; order: -1; }

    table, thead, tbody, th, td, tr { display: block; }
    thead { display: none; }

    tr {
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        padding: 10px 12px;
    }

    td {
        border-bottom: none;
        padding: 6px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        text-align: right;
    }

    td::before {
        content: attr(data-label);
        font-size: 12px;
        font-weight: 600;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 0.03em;
        text-align: left;
    }

    td form { justify-content: flex-end; }
}