*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --cafe: #7a4f2d;
    --cafe-claro: #c9964d;
    --blanco: #f5f0ea;
    --gris: rgba(255, 255, 255, 0.08);
    --borde: rgba(255, 255, 255, 0.15);
    --sombra: 0 24px 64px rgba(0, 0, 0, 0.6);
}

html,
body {
    height: 100%;
    font-family: 'Montserrat', sans-serif;
}

/* ---- Fondo ---- */
.fondo {
    min-height: 100vh;
    background: url('/images/portada.png') center center / cover no-repeat fixed;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 8vw;
    position: relative;
}

.fondo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg,
            rgba(0, 0, 0, 0.15) 0%,
            rgba(0, 0, 0, 0.55) 50%,
            rgba(0, 0, 0, 0.82) 100%);
}

/* ---- Panel ---- */
.panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    background: rgba(10, 10, 10, 0.72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--borde);
    border-radius: 20px;
    padding: 52px 44px 44px;
    box-shadow: var(--sombra);
    animation: slideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ---- Marca ---- */
.marca {
    margin-bottom: 36px;
    text-align: center;
}

.marca-nombre {
    font-family: 'Raleway', sans-serif;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--blanco);
    line-height: 1;
}

.marca-sub {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--cafe-claro);
    margin-top: 6px;
}

.divisor {
    width: 40px;
    height: 2px;
    background: var(--cafe-claro);
    margin: 16px auto 0;
    border-radius: 2px;
}

/* ---- Título ---- */
.titulo {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 28px;
    text-align: center;
}

/* ---- Campos ---- */
.campo {
    margin-bottom: 18px;
}

.campo label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.campo input {
    width: 100%;
    background: var(--gris);
    border: 1px solid var(--borde);
    border-radius: 10px;
    padding: 14px 16px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    color: var(--blanco);
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}

.campo input::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.campo input:focus {
    border-color: var(--cafe-claro);
    background: rgba(255, 255, 255, 0.06);
}

/* ---- Botón ---- */
.btn-login {
    width: 100%;
    margin-top: 8px;
    padding: 15px;
    background: linear-gradient(135deg, var(--cafe) 0%, var(--cafe-claro) 100%);
    border: none;
    border-radius: 10px;
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #fff;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.15s;
}

.btn-login:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-login:active {
    transform: translateY(0);
}

/* ---- Alertas ---- */
.alerta {
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
    text-align: center;
}

.alerta-error {
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(220, 38, 38, 0.4);
    color: #fca5a5;
}

.alerta-exito {
    background: rgba(22, 163, 74, 0.15);
    border: 1px solid rgba(22, 163, 74, 0.4);
    color: #86efac;
}

/* ---- Footer ---- */
.panel-footer {
    margin-top: 28px;
    text-align: center;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 1px;
}