/* Login Page Styles */
:root {
    --login-primary: #0066cc;
    --login-primary-dark: #0052a3;
    --login-error: #e74c3c;
    --login-success: #2ecc71;
    --login-bg-gradient-start: #f8faff;
    --login-bg-gradient-end: #e3f0ff;
    --login-shadow: rgba(0, 102, 204, 0.15);
    --login-card-bg: #ffffff;
}

.login-container {
    max-width: 450px;
    margin: 2rem auto 4rem;
    padding: 2.5rem;
    background: var(--login-card-bg);
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--login-shadow);
    animation: fadeInUp 0.6s ease-out;
    border: 1px solid rgba(0, 102, 204, 0.1);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--login-primary), #4a90e2);
}

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

.login-title {
    font-size: 2rem;
    color: var(--text-color);
    margin: 0 0 1rem;
    position: relative;
    display: inline-block;
}

.login-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -12px;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--login-primary);
    border-radius: 2px;
}

.login-subtitle {
    color: #718096;
    font-weight: 400;
    font-size: 1rem;
    margin-top: 1.5rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #4a5568;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label svg {
    width: 18px;
    height: 18px;
    opacity: 0.7;
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #f9fafc;
}

.form-group input:focus {
    border-color: var(--login-primary);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
    outline: none;
    background-color: #fff;
}

.form-group input:hover {
    border-color: #cbd5e0;
}

.login-btn {
    background: var(--login-primary);
    color: white;
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
}

.login-btn::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: all 0.6s ease;
}

.login-btn:hover {
    background: var(--login-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 102, 204, 0.2);
}

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

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

.alert {
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    position: relative;
    padding-left: 3rem;
    animation: shake 0.5s ease-in-out;
}

.alert.error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--login-error);
    border-left: 4px solid var(--login-error);
}

.alert.error::before {
    content: "⚠️";
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

.login-footer {
    text-align: center;
    margin-top: 2rem;
    color: #718096;
    font-size: 0.9rem;
}

.login-footer a {
    color: var(--login-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: var(--login-primary-dark);
    text-decoration: underline;
}

.login-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 240px;
    background: linear-gradient(to bottom, var(--login-bg-gradient-start), var(--login-bg-gradient-end));
    z-index: -1;
}

.login-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(0, 102, 204, 0.1) 2px, transparent 2px);
    background-size: 30px 30px;
    opacity: 0.5;
}

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

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

/* Responsive styles */
@media (max-width: 600px) {
    .login-container {
        padding: 2rem 1.5rem;
        margin: 1.5rem auto;
        max-width: 90%;
    }
    
    .login-title {
        font-size: 1.7rem;
    }
    
    .login-subtitle {
        font-size: 0.9rem;
    }
    
    .form-group input {
        padding: 12px 14px;
    }
    
    .login-btn {
        padding: 12px;
    }
}

@media (max-width: 400px) {
    .login-container {
        padding: 1.5rem 1rem;
        border-radius: 12px;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .form-group input {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .login-btn {
        padding: 10px;
        font-size: 0.95rem;
    }
}