body{padding-bottom:0px;background: #fff;}
/* TikTok Style Login Page */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: #fff;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}


.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 40px 30px;
    width: 100%;
    position: relative;
    z-index: 1;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.auth-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff0050, #ff4081);
    border-radius: 16px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(255, 0, 80, 0.3);
}

.auth-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.auth-subtitle {
    font-size: 16px;
    color: #666;
    font-weight: 400;
}

.auth-form {
    margin-bottom: 30px;
}

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

.form-input {
    width: 100%;
    height: 56px;
    border: 2px solid #f0f0f0;
    border-radius: 16px;
    padding: 0 20px;
    font-size: 16px;
    font-weight: 500;
    background: #fafafa;
    transition: all 0.3s ease;
    outline: none;
}

.form-input:focus {
    border-color: #ff0050;
    background: white;
    box-shadow: 0 0 0 4px rgba(255, 0, 80, 0.1);
}

.form-input::placeholder {
    color: #999;
    font-weight: 400;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.form-checkbox {
    display: flex;
    align-items: center;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    accent-color: #ff0050;
}

.checkbox-label {
    font-size: 14px;
    color: #666;
}

.forgot-password {
    font-size: 14px;
    color: #ff0050;
    text-decoration: none;
    font-weight: 600;
}

.forgot-password:hover {
    text-decoration: underline;
}

.auth-button {
    width: 100%;
    height: 56px;
    background: linear-gradient(135deg, #ff0050, #ff4081);
    border: none;
    border-radius: 16px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(255, 0, 80, 0.3);
    margin-bottom: 30px;
}

.auth-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(255, 0, 80, 0.4);
}

.auth-button:active {
    transform: translateY(0);
}

.auth-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.divider {
    display: flex;
    align-items: center;
    margin: 30px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e0e0e0;
}

.divider-text {
    padding: 0 20px;
    color: #999;
    font-size: 14px;
    font-weight: 500;
}

.social-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 30px;
}

.social-button {
    height: 56px;
    border: 2px solid #f0f0f0;
    border-radius: 16px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.social-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.social-button.kakao {
    background: #fee500;
    border-color: #fee500;
    color: #3c1e1e;
}

.social-button.naver {
    background: #03c75a;
    border-color: #03c75a;
    color: white;
}

.social-button.google {
    background: white;
    border-color: #e0e0e0;
    color: #333;
}

.social-button.apple {
    background: #000;
    border-color: #000;
    color: white;
}

.social-icon {
    width: 24px;
    height: 24px;
    margin-right: 8px;
}

.auth-footer {
    text-align: center;
}

.auth-footer-text {
    font-size: 14px;
    color: #666;
}

.auth-footer-link {
    color: #ff0050;
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
}

.auth-footer-link:hover {
    text-decoration: underline;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .auth-container {
        padding: 10px;
    }
    
    .auth-card {
        padding: 30px 20px;
    }
    
    .social-buttons {
        grid-template-columns: 1fr;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* Error Messages */
.error-message {
    color: #ff3333;
    font-size: 14px;
    margin-top: 8px;
    display: none;
}

.form-group.error .form-input {
    border-color: #ff3333;
    background: #fff5f5;
}

.form-group.error .error-message {
    display: block;
}

/* Loading Animation */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success Animation */
.success-animation {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: none;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4caf50, #8bc34a);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: white;
}

/* Quick Login Options */
.quick-login {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
}

.quick-login-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    text-align: center;
}

.quick-login-buttons {
    display: flex;
    gap: 10px;
}

.quick-login-btn {
    flex: 1;
    height: 44px;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    background: white;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-login-btn:hover {
    border-color: #ff0050;
    color: #ff0050;
}