:root {
    --primary-color: #4e73df;
    --bg-gradient: linear-gradient(135deg, #f8f9fc 0%, #e2e8f0 100%);
}

body {
    font-family: 'Pretendard', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.auth-container {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 500px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

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

.auth-header h1 {
    font-weight: 700;
    color: #333;
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.auth-header p {
    color: #666;
    font-size: 0.95rem;
}

.form-label {
    font-weight: 600;
    color: #444;
    margin-bottom: 8px;
    display: block;
}

.form-control,
.form-select {
    border-radius: 10px;
    padding: 12px;
    border: 1px solid #ddd;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    box-shadow: 0 0 0 3px rgba(78, 115, 223, 0.2);
    border-color: var(--primary-color);
    outline: none;
}

.btn-auth {
    background-color: var(--primary-color);
    border: none;
    border-radius: 10px;
    padding: 14px;
    font-weight: 700;
    width: 100%;
    color: white;
    margin-top: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-auth:hover {
    background-color: #2e59d9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(78, 115, 223, 0.3);
}

.btn-auth:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

#result-area {
    margin-top: 25px;
    display: none;
}

.status-badge {
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 10px;
}

.status-success {
    background-color: #d1f7e0;
    color: #1e7e34;
}

.status-error {
    background-color: #ffe5e5;
    color: #d32f2f;
}

#resultJson {
    background-color: #f8f9fc;
    padding: 15px;
    border-radius: 10px;
    font-size: 0.85rem;
    max-height: 200px;
    overflow: auto;
    border: 1px solid #eee;
    white-space: pre-wrap;
    word-break: break-all;
}

/* 인증 코드 분리형 입력 스타일 */
.code-input-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.code-prefix {
    flex: 1;
    text-transform: uppercase;
    text-align: center;
    letter-spacing: 2px;
}

.code-otp {
    flex: 1.5;
    text-align: center;
    letter-spacing: 2px;
}

.code-separator {
    font-weight: 700;
    color: #999;
}

#timer-display {
    font-size: 0.9rem;
    color: #d32f2f;
    font-weight: 700;
    margin-top: 10px;
    text-align: right;
}

/* 브랜드 배너 및 뱃지 스타일 */
.brand-banner-link {
    text-decoration: none;
    display: block;
    text-align: center;
    margin-bottom: 25px;
    transition: transform 0.3s ease;
}

.brand-banner-link:hover {
    transform: scale(1.05);
}

.brand-logo {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: 5px;
    background: linear-gradient(to right, #2e59d9, #4e73df);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-style: italic;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.footer-badge-area {
    margin-top: 30px;
    text-align: center;
    border-top: 1px dashed #ddd;
    padding-top: 20px;
}

.business-badge {
    display: inline-block;
    background-color: #333;
    color: #fff;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Nav Pills Custom Style */
.nav-pills .nav-link {
    color: #666;
    font-weight: 600;
    border-radius: 10px;
    padding: 10px;
    transition: all 0.3s ease;
}

.nav-pills .nav-link.active {
    background-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(78, 115, 223, 0.2);
}

.tab-content {
    padding-top: 10px;
}