/* ═══════════════════════════════════════════════════════════
   VISOR CASHDRO — Estilos del LOGIN (Fase 2)
   ═══════════════════════════════════════════════════════════ */

:root {
    --color-primario: #0969da;
    --color-primario-oscuro: #0550ae;
    --color-card: #ffffff;
    --color-texto: #1f2328;
    --color-texto-suave: #6a737d;
    --color-borde: #d1d5db;
    --color-error: #cf222e;
    --color-error-fondo: #ffebe9;
    --radio: 12px;
    --sombra: 0 10px 30px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--color-texto);
    font-size: 15px;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a8a 0%, #0969da 50%, #3b82f6 100%);
    background-attachment: fixed;
}

.login-contenedor {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--color-card);
    padding: 44px 38px 30px 38px;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    width: 100%;
    max-width: 400px;
    position: relative;
}

.login-card h1 {
    margin: 0 0 6px 0;
    font-size: 26px;
    text-align: center;
    color: var(--color-primario);
    font-weight: 700;
    letter-spacing: -0.3px;
}

.subtitulo {
    text-align: center;
    color: var(--color-texto-suave);
    margin: 0 0 32px 0;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

label {
    display: block;
    margin-top: 16px;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
    color: var(--color-texto);
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.15s;
    min-height: 46px;
    background: #fafbfc;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--color-primario);
    background: white;
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.12);
}

.recordar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    font-weight: normal;
    font-size: 14px;
    color: var(--color-texto-suave);
    cursor: pointer;
}

.recordar input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-primario);
}

.btn-entrar {
    width: 100%;
    margin-top: 26px;
    padding: 14px;
    background: var(--color-primario);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    min-height: 50px;
    transition: all 0.15s;
    box-shadow: 0 2px 4px rgba(9, 105, 218, 0.2);
}

.btn-entrar:hover {
    background: var(--color-primario-oscuro);
    box-shadow: 0 4px 8px rgba(9, 105, 218, 0.3);
    transform: translateY(-1px);
}

.btn-entrar:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(9, 105, 218, 0.2);
}

.alerta-error {
    background: var(--color-error-fondo);
    color: var(--color-error);
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    border-left: 3px solid var(--color-error);
}

.firma {
    text-align: right;
    margin: 28px 0 0 0;
    color: var(--color-texto-suave);
    font-size: 13px;
    font-style: italic;
    font-weight: 500;
    opacity: 0.75;
}

/* Responsive móvil */
@media (max-width: 480px) {
    .login-card {
        padding: 36px 26px 24px 26px;
        max-width: 100%;
    }
    .login-card h1 { font-size: 24px; }
}