.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 60px -15px rgba(99, 102, 241, 0.3), 0 10px 25px -5px rgba(139, 92, 246, 0.2);
    width: 100%;
    max-width: 450px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header .logo-container {
    margin-bottom: 20px;
}

.login-header .logo {
    max-width: 120px;
    height: auto;
}

.login-header h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.error-alert {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.login-form {
    margin-top: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), 0 4px 6px -1px rgba(139, 92, 246, 0.1);
    background: white;
}

.btn-login {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 4px 15px -3px rgba(99, 102, 241, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px -5px rgba(99, 102, 241, 0.5);
}

.login-footer {
    margin-top: 25px;
    text-align: center;
}

.back-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .login-header .logo {
        max-width: 80px;
    }
    
    .login-header h1 {
        font-size: 2rem;
    }
}