:root {
    --azul: #123f6d;
    --azul-oscuro: #0d3158;
    --verde: #198b4d;
    --verde-oscuro: #137540;
    --rojo: #c9343c;
    --texto: #183653;
    --texto-suave: #64748b;
    --borde: #d9e2ec;
    --fondo: #f3f6fa;
    --blanco: #ffffff;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--fondo);
    color: var(--texto);
    font-family: Arial, Helvetica, sans-serif;
}
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 28px; }
.auth-card {
    width: min(480px, 100%);
    padding: 38px;
    background: var(--blanco);
    border-radius: 22px;
    box-shadow: 0 18px 55px rgba(20, 49, 84, 0.14);
}
.auth-logo { display: block; width: 120px; height: 120px; margin: 0 auto 18px; object-fit: contain; }
.auth-card h1 { margin: 0 0 8px; text-align: center; color: var(--azul); font-size: 32px; }
.auth-subtitle { margin: 0 0 30px; text-align: center; color: var(--texto-suave); line-height: 1.5; }
.form-group { margin-bottom: 19px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--azul); font-weight: 700; }
.form-control {
    width: 100%; padding: 14px 15px; border: 1px solid var(--borde);
    border-radius: 11px; background: var(--blanco); font-size: 16px;
}
.form-control:focus { border-color: var(--azul); outline: 3px solid rgba(18, 63, 109, 0.12); }
.btn-primary {
    width: 100%; padding: 14px 18px; border: 0; border-radius: 11px;
    background: var(--verde); color: var(--blanco); font-size: 16px;
    font-weight: 700; cursor: pointer;
}
.btn-primary:hover { background: var(--verde-oscuro); }
.alert { margin-bottom: 20px; padding: 13px 15px; border-radius: 11px; line-height: 1.45; }
.alert-error { background: #fdecec; color: #a9272d; }
.panel-page { min-height: 100vh; padding: 30px; }
.panel-container { width: min(1100px, 100%); margin: 0 auto; }
.panel-header {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    margin-bottom: 28px; padding: 22px 26px; background: var(--blanco);
    border-radius: 18px; box-shadow: 0 12px 35px rgba(20, 49, 84, 0.1);
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand img { width: 74px; height: 74px; object-fit: contain; }
.brand h1 { margin: 0 0 5px; color: var(--azul); font-size: 24px; }
.brand p { margin: 0; color: var(--texto-suave); }
.user-area { text-align: right; }
.user-area strong, .user-area span { display: block; }
.user-area span { margin-top: 4px; color: var(--texto-suave); text-transform: capitalize; }
.logout-link { display: inline-block; margin-top: 9px; color: var(--rojo); font-weight: 700; text-decoration: none; }
.welcome-card {
    padding: 30px; background: var(--blanco); border-radius: 18px;
    box-shadow: 0 12px 35px rgba(20, 49, 84, 0.1);
}
.welcome-card h2 { margin-top: 0; color: var(--azul); }
.modules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; margin-top: 26px; }
.module-card {
    min-height: 145px; padding: 22px; border: 1px solid var(--borde);
    border-radius: 15px; background: #fbfcfe;
}
.module-card h3 { margin: 0 0 10px; color: var(--azul); }
.module-card p { margin: 0; color: var(--texto-suave); line-height: 1.5; }
.module-link {
    color: inherit; text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.module-link:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(20, 49, 84, 0.10); }
.demo-link {
    display: inline-block; margin-top: 25px; padding: 12px 18px; border-radius: 10px;
    background: var(--azul); color: var(--blanco); font-weight: 700; text-decoration: none;
}
.demo-link:hover { background: var(--azul-oscuro); }
@media (max-width: 700px) {
    .auth-card { padding: 28px 22px; }
    .panel-page { padding: 18px; }
    .panel-header { align-items: flex-start; flex-direction: column; }
    .user-area { text-align: left; }
}