:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    border: none;
    overflow: hidden;
    width: 100%;
    max-width: 450px;
}

.login-header {
    background: white;
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.login-logo {
    max-width: 180px;
    height: auto;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.login-logo:hover {
    transform: scale(1.05);
}

.login-title {
    color: #333;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.login-body {
    padding: 2rem;
}

.form-control-lg {
    font-size: 1rem;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    border: 1px solid #e1e1e1;
    transition: all 0.3s ease;
}

.form-control-lg:focus {
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.15);
    border-color: var(--primary-color);
}

.btn-login {
    padding: 0.8rem;
    font-weight: 600;
    border-radius: 10px;
    background: linear-gradient(to right, #0061f2, #00c6f9);
    border: none;
    transition: transform 0.2s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 97, 242, 0.3);
}

.mensaje-animo {
    background: #f8f9fa;
    border-left: 4px solid var(--success-color);
    padding: 1rem;
    margin-top: 2rem;
    border-radius: 0 10px 10px 0;
    font-size: 0.9rem;
    color: #555;
    line-height: 1.5;
}

.support-btn {
    text-decoration: none;
    color: var(--success-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    transition: color 0.3s;
}

.support-btn:hover {
    color: #146c43;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Modal Styles */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.modal-header {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    border-bottom: 1px solid #eee;
    padding: 1.5rem;
    border-radius: 20px 20px 0 0;
}

.modal-body {
    padding: 2rem;
}

.modal-title {
    color: #333;
    font-weight: 700;
}