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

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 500px;
    animation: slideUp 0.6s ease-out;
}

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

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 16px;
    color: #718096;
}

.login-step {
    margin-bottom: 30px;
}

.step-title {
    font-size: 18px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.step-number {
    display: inline-block;
    width: 24px;
    height: 24px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    line-height: 24px;
    margin-right: 10px;
}

.education-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.education-card {
    padding: 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.education-card:hover {
    border-color: #007bff;
    background: #f0f8ff;
    transform: translateY(-2px);
}

.education-card.selected {
    border-color: #007bff;
    background: #e3f2fd;
}

.education-name {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 4px;
}

.education-info {
    font-size: 14px;
    color: #718096;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.team-card {
    padding: 16px 12px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    background: #f8f9fa;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.team-card:hover {
    border-color: #007bff;
    background: #f0f8ff;
    transform: translateY(-2px);
}

.team-card.selected {
    border-color: #007bff;
    background: #e3f2fd;
}

.team-icon {
    font-size: 24px;
    margin-bottom: 6px;
}

.team-name {
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
}

.login-form {
    margin-top: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.login-actions {
    margin-top: 30px;
    text-align: center;
}

.btn-login {
    width: 100%;
    padding: 16px;
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.admin-link {
    display: inline-block;
    color: #718096;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.admin-link:hover {
    color: #007bff;
}

/* 새 인증 UI 스타일 */
.auth-selection {
    text-align: center;
    margin-bottom: 30px;
}

.auth-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.btn-auth {
    width: 100%;
    padding: 18px 24px;
    font-size: 18px;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-signup {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: white;
}

.btn-signup:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(72, 187, 120, 0.4);
}

.btn-login {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.auth-description {
    color: #718096;
    font-size: 14px;
    line-height: 1.5;
}

.auth-section {
    animation: fadeIn 0.4s ease-out;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
}

.section-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: #2d3748;
}

.btn-back {
    background: #e2e8f0;
    color: #4a5568;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-back:hover {
    background: #cbd5e0;
    transform: translateX(-2px);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.auth-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.auth-form label {
    font-weight: 600;
    color: #2d3748;
    font-size: 14px;
}

.auth-form input {
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.auth-form input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-logout {
    background: #e53e3e;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: #c53030;
    transform: translateY(-1px);
}

.admin-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

/* 회원가입 링크 스타일 */
.signup-link {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.signup-link p {
    margin: 0;
    color: #718096;
    font-size: 14px;
}

.btn-text-link {
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: underline;
    padding: 0;
    margin-left: 5px;
    transition: color 0.3s ease;
}

.btn-text-link:hover {
    color: #5a6fd8;
}

/* 기본 로그인 화면 스타일 개선 */
#loginSection .section-header h2 {
    text-align: center;
    margin-bottom: 0;
}

#loginSection .section-header {
    border-bottom: none;
    margin-bottom: 20px;
}

/* 회원가입 화면의 뒤로 버튼 텍스트 개선 */
#signupSection .btn-back {
    font-size: 13px;
}

/* 반응형 */
@media (max-width: 768px) {
    .login-card {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .btn-login {
        font-size: 16px;
        padding: 14px;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-card {
        min-height: 70px;
    }
    
    .team-icon {
        font-size: 20px;
    }
}