/* ═══════════════════════════════════════════════════════════
   LOGIN PAGE - Estilo ASSE RAP GRADE (CON LOGO COMBINADO)
   ═══════════════════════════════════════════════════════════ */

:root {
    --asse-blue: #003d82;
    --asse-light-blue: #4a90e2;
    --asse-yellow: #fbbf24;
}

/* Body y Container */
body {
    background: linear-gradient(135deg, var(--asse-blue) 0%, var(--asse-light-blue) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: relative;
    overflow: hidden;
}

/* Pattern de fondo */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 1;
    z-index: 0;
}

/* Login Container */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    padding: 1rem;
}

/* Login Card */
.login-card {
    background: white;
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
    padding: 3rem 2.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.5s ease-out;
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

/* ✅ LOGO COMBINADO - Contenedor simplificado */
.login-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    padding: 1rem 1.5rem;
    background: #f8fafc;
    border-radius: 16px;
    border: 2px solid #e2e8f0;
}

/* ✅ Logo único ASSE + RAP - Dimensiones proporcionales */
.logo-combined {
    height: 55px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

/* Título */
.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--asse-blue);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.login-subtitle {
    font-size: 0.95rem;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}

/* Form */
.login-form {
    margin-top: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-label i {
    color: var(--asse-blue);
    font-size: 1rem;
}

.form-control {
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--asse-light-blue);
    box-shadow: 0 0 0 0.25rem rgba(74, 144, 226, 0.15);
    outline: none;
}

.form-control-lg {
    padding: 1rem 1.25rem;
}

/* Checkbox */
.form-check {
    margin-bottom: 1.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
}

.form-check-input:checked {
    background-color: var(--asse-blue);
    border-color: var(--asse-blue);
}

.form-check-label {
    margin-left: 0.5rem;
    color: #64748b;
    font-size: 0.95rem;
}

/* Botón de Login */
.btn-login {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--asse-blue), var(--asse-light-blue));
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 61, 130, 0.3);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.btn-login:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 61, 130, 0.4);
    background: linear-gradient(135deg, var(--asse-light-blue), var(--asse-blue));
}

.btn-login:active {
    transform: translateY(-1px);
}

.btn-login i {
    font-size: 1.25rem;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.alert-danger {
    background-color: #fee;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: 1.25rem;
}

.text-danger {
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

/* Footer del Card */
.login-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.login-footer p {
    color: #94a3b8;
    font-size: 0.875rem;
    margin: 0;
}

/* Loading State */
.btn-login.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-login.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animación de entrada */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 576px) {
    .login-card {
        padding: 2rem 1.5rem;
        border-radius: 20px;
    }

    .login-logos {
        padding: 0.75rem 1rem;
        margin-bottom: 1rem;
    }

    .logo-combined {
        height: 45px;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .btn-login {
        padding: 0.875rem 1.25rem;
        font-size: 1rem;
    }
}