:root {
    --sidebar-bg: #1B3A45;
    --sidebar-active: #25505C;
    --header-blue: #2D6FE0;
    --card-azul: #3B82F6;
    --card-verde: #16A34A;
    --card-turquesa: #14B8A6;
    --card-naranja: #F59E0B;
    --fondo: #F3F4F6;
    --texto-claro: #FFFFFF;
    --texto-oscuro: #1F2937;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--fondo);
    color: var(--texto-oscuro);
}

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

.sidebar {
    width: 240px;
    background: var(--sidebar-bg);
    color: var(--texto-claro);
    padding: 24px 16px;
    flex-shrink: 0;
}

.sidebar h1 { font-size: 1.1rem; margin: 0 0 24px; }

.sidebar a {
    display: block;
    color: var(--texto-claro);
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 4px;
}

.sidebar a:hover, .sidebar a.active {
    background: var(--sidebar-active);
}

.logout-form { margin: 0; }
.logout-form button {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: var(--texto-claro);
    font: inherit;
    cursor: pointer;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 4px;
}
.logout-form button:hover { background: var(--sidebar-active); }

.main { flex: 1; padding: 24px; }

.header-banner {
    background: var(--header-blue);
    color: var(--texto-claro);
    padding: 24px;
    border-radius: 10px;
    margin-bottom: 24px;
}

.header-banner h2 { margin: 0 0 4px; }
.header-banner p { margin: 0; opacity: 0.9; }

.vault-alert {
    background: #e5e7eb;
    color: var(--texto-oscuro);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.vault-alert-warn {
    background: #fef3c7;
    border: 1px solid #f59e0b;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.card {
    border-radius: 10px;
    padding: 20px;
    color: var(--texto-claro);
    text-decoration: none;
    display: block;
    min-height: 100px;
    transition: transform 0.15s ease;
}

.card:hover { transform: translateY(-2px); }

.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; font-size: 0.85rem; opacity: 0.9; }

.card.azul { background: var(--card-azul); }
.card.verde { background: var(--card-verde); }
.card.turquesa { background: var(--card-turquesa); }
.card.naranja { background: var(--card-naranja); }

.estado-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    float: right;
    margin-top: 4px;
}
.estado-arriba { background: #22c55e; box-shadow: 0 0 6px #22c55e; }
.estado-abajo { background: #ef4444; box-shadow: 0 0 6px #ef4444; }
.estado-desconocido { background: #9ca3af; }

.badge-vpn {
    display: inline-block;
    background: rgba(255,255,255,0.25);
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.7rem;
    margin-top: 8px;
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sidebar-bg);
}

.login-box {
    background: white;
    padding: 32px;
    border-radius: 12px;
    width: 100%;
    max-width: 360px;
}

.login-box h1 { font-size: 1.2rem; margin-top: 0; color: var(--texto-oscuro); }

.login-box input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
}

.login-box button {
    width: 100%;
    padding: 10px;
    background: var(--header-blue);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}

.errorlist { color: #dc2626; font-size: 0.85rem; padding-left: 0; list-style: none; }