/* header {
    margin-top: 0px;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px;
    border-radius: 10px;
    height: 60px;
}

.menu {
    display: flex;
    gap: 40px;
    list-style: none;
}

.menu li {
    font-size: 16px;
}

.menu a {
    color: black;
    text-decoration: none;
    transition: color 0.3s;
}

.menu a:hover {
    color: black;
}

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

.auth-buttons button {
    padding: 5px 10px;
    border: 1px solid black;
    background-color: white;
    color: black;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.auth-buttons button:hover {
    background-color: black;
    color: white;
}

.section1 {
    text-align: center;
    margin-top: 50px;
}

.section1 h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.section1 p {
    font-size: 18px;
    color: #555;
}

.section2 {
    text-align: center;
    margin-top: 50px;
}

.section2 h2 {
    font-size: 36px;
    margin-bottom: 10px;
}

.section2 p {
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
}

.section3 {
    display: flex;
    flex-direction: column;
    gap: 150;
    margin-bottom: 10rem;
}

.section3 .text h2 {
    color: #6366f1;
    margin-bottom: 20px;
}


.section3 .text p {
    line-height: 1.7;
}

.card-container {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.card {
    width: 300px;
    padding: 20px;
    border: 2px solid #ddd;
    border-radius: 10px;
    background-color: #f9f9f9;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.card p {
    font-size: 16px;
    color: #555;
}

.hero-button {
    padding: 10px 16px;
    font-weight: 500;
    border: 0px solid white;
    background-color: #6366F1;
    color: white;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    font-size: 1rem;
}

.hero-button:hover {
    background-color: #4F46E5;
    color: white;
}

video {
    width: 100%;
    height: 576px;
    border-radius: 10px;
    overflow: hidden;
    object-fit: cover;
}

.card-container2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.card2 {
    padding: 20px;
    border: 2px solid #ddd;
    border-radius: 10px;
    background-color: #f9f9f9;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.section4 {
    margin-top: 80px;
}

.section4-header {
    text-align: center;
}

.section4-subtitle {
    font-size: 16px;
    color: #888;
}

.section4-title {
    font-size: 28px;
    font-weight: bold;
    line-height: 1.5;
}

.section4-content {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
}

/* AS-IS 스타일 */
/* .as-is {
    width: 480px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.as-is-box {
    width: 360px;
    background-color: #f8f8f8;
    border-radius: 20px;
    padding: 30px;
}

.as-is-item {
    background-color: white;
    border: 1px solid #ccc;
    border-radius: 10px;
    font-weight: bold;
    padding: 15px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.as-is-tag {
    font-size: 12px;
    font-weight: bold;
    padding: 10px 8px;
    border-radius: 5px;
    margin-right: 10px;
    color: white;
}

.tag-dark {
    background-color: #1a1f27;
}

.tag-mid {
    background-color: #4b4f56;
}

.tag-light {
    background-color: #aaa;
}

/* TO-BE 스타일 */
/* .to-be {
    width: 480px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.to-be-item {
    border: 2px solid #0066ff;
    border-radius: 10px;
    padding: 20px;
}

.to-be-tag {
    background-color: #0066ff;
    color: white;
    font-size: 12px;
    font-weight: bold;
    padding: 10px 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    display: inline-block;
}

.to-be-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
}

.to-be-desc {
    font-size: 14px;
    color: #777;
}

.section4-label {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 0px;
}

.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s;
}

.popup-overlay.show {
    visibility: visible;
    opacity: 1;
}

.popup-content {
    background: transparent;
    padding: 0;
    border-radius: 10px;
    max-width: 1104px;
    width: 90%;
}

.popup-content video {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.thumbnail {
    width: 100%;
    height: 75%;
    border-radius: 10px;
    object-fit: cover;
    cursor: pointer;
}

.section5 {
    margin-top: 80px;
}

.section5-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: flex-end;
}

.section5-box {
    width: 480px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.section5-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 0px;
}

.highlight {
    color: #0066ff;
}

.section5-problems {
    width: 420px;
    background-color: #ffffff;
    border-radius: 20px;
    padding: 0px;
}

.problem-item {
    background-color: white;
    border: 1px solid #ccc;
    color: #777;
    border-radius: 10px;
    font-weight: bold;
    padding: 25px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.solution-item {
    border: 2px solid #0066ff;
    border-radius: 10px;
    padding: 40px 20px;
}

.solution-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
}

.solution-desc {
    font-size: 14px;
    font-weight: bold;
    color: #777;
} */