.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.login-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
}

[data-theme="dark"] .login-background {
    background: linear-gradient(135deg, #1e3a8a 0%, #4c1d95 100%);
}

.bg-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.login-box {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    animation: scaleIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header .logo {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.login-header h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-form {
    margin-top: var(--spacing-xl);
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.login-form label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.login-form .input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.login-form .input-group svg {
    position: absolute;
    left: 1rem;
    color: var(--text-tertiary);
    z-index: 1;
}

.login-form .input-group input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .login-form .input-group input {
    background: rgba(30, 41, 59, 0.9);
    color: var(--text-primary);
}

.login-form .input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    outline: none;
}

.login-form .btn {
    margin-top: var(--spacing-lg);
    padding: 1rem;
    font-size: 1rem;
    font-weight: 700;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.login-form .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

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

.login-footer {
    margin-top: var(--spacing-xl);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Alert in Login */
.login-box .alert {
    margin-bottom: var(--spacing-lg);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        padding: var(--spacing-md);
    }
    
    .login-box {
        padding: var(--spacing-lg);
    }
    
    .login-header h1 {
        font-size: 1.75rem;
    }
}