/* =====================================================
   ESTILOS DE LA PÁGINA DE LOGIN (index.php)
   ===================================================== */

body {
    background: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
    color: white;
    padding: 1.5rem 1.5rem 1.2rem;
    text-align: center;
}

.login-header i {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    display: block;
}

.login-header h1 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.login-header p {
    font-size: 0.82rem;
    opacity: 0.9;
}

.login-body {
    padding: 1.5rem 1.5rem 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 600;
    color: #1f2937;
    font-size: 0.85rem;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
    font-size: 1.1rem;
}

.form-control {
    width: 100%;
    padding: 0.7rem 1rem 0.7rem 2.8rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.92rem;
    transition: all 0.3s;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.error-message {
    background: #fee2e2;
    border-left: 4px solid #ef4444;
    color: #991b1b;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.error-message i {
    font-size: 1.3rem;
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #2563eb 0%, #0891b2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

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

.login-footer {
    padding: 1rem 1.5rem;
    background: #f9fafb;
    text-align: center;
    color: #6b7280;
    font-size: 0.8rem;
    border-top: 1px solid #e5e7eb;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .login-container {
        max-width: 100%;
    }
    
    .login-header {
        padding: 1.2rem 1.2rem 1rem;
    }

    .login-header h1 {
        font-size: 1.05rem;
    }

    .login-body {
        padding: 1.25rem 1.2rem 1rem;
    }
}