* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #333;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-wrapper {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    padding: 48px 40px;
    width: 100%;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.logo svg {
    display: block;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 14px;
    color: #666;
    font-weight: 400;
}

.login-form {
    width: 100%;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background-color: #ffffff;
    color: #1a1a1a;
    transition: all 0.2s ease;
    outline: none;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: #0061D5;
    box-shadow: 0 0 0 3px rgba(0, 97, 213, 0.1);
}

.form-group input[type="text"]::placeholder,
.form-group input[type="password"]::placeholder {
    color: #9ca3af;
}

.form-group .cf-turnstile {
    display: flex;
    justify-content: center;
    margin: 8px 0;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #4b5563;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: #0061D5;
}

.forgot-password {
    font-size: 14px;
    color: #0061D5;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #0052b3;
    text-decoration: underline;
}

.login-button {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    background-color: #0061D5;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
}

.login-button:hover {
    background-color: #0052b3;
    box-shadow: 0 4px 12px rgba(0, 97, 213, 0.3);
}

.login-button:active {
    background-color: #004799;
    transform: translateY(1px);
}

.login-button:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
    box-shadow: none;
}

.login-footer {
    margin-top: 32px;
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #e5e7eb;
}

.login-footer p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

.login-footer a {
    color: #0061D5;
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* 반응형 디자인 */
@media (max-width: 480px) {
    .login-wrapper {
        padding: 32px 24px;
    }

    .login-header h1 {
        font-size: 24px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }

    .forgot-password {
        width: 100%;
    }
}

/* 로딩 상태 */
.login-button.loading {
    position: relative;
    color: transparent;
}

.login-button.loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 에러 메시지 스타일 */
.error-message {
    color: #dc2626;
    font-size: 13px;
    margin-top: 6px;
    display: block;
}

.form-group.error input {
    border-color: #dc2626;
}

.form-group.error input:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}