body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: white;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}
.header-container {
    background-color: white;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 1000;
}
.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-image {
    max-height: 50px;
    width: auto;
}
.buttons {
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    align-items: flex-end;
}
.button {
    padding: 10px 20px;
    background: linear-gradient(to right, #ff6b6b, #ff3e3e);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    white-space: nowrap;
}
.line-button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.line-text {
    margin: 0;
    font-size: 0.8em;
    white-space: nowrap;
}
.line-button {
    display: flex;
    align-items: center;
}
.hero {
    background: linear-gradient(to right, #00a1e9, #0071bc);
    padding: 120px 0;
    overflow: hidden;
}
.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
.hero-text {
    color: white;
    width: 60%;
    z-index: 2;
    text-align: left;
}
.hero-text h2 {
    font-size: 1.2em;
    margin-bottom: 10px;
}
.hero-text h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}
.hero-text p {
    font-size: 1.2em;
    margin-bottom: 10px;
}
.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    z-index: 1;
}
.hero-image img {
    max-width: 100%;
    height: auto;
}
  /* courses-section */
.courses-section {
    background-color: #f0f8ff;
    padding: 30px 0;
    margin-bottom: 0px;
}
.courses {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 50px 0;
}
.courses-content {
    text-align: center;
}
.courses-content h2 {
    font-size: 2em;
    font-weight: bold;
}
.course-card {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.course-title{
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}
.course-description {
    font-size: 14px;
    color: #666;
}
/* pricing-section */
.pricing-section {
    padding:30px 0;
}
.pricing-content {
    text-align: center;
    margin-bottom: 40px;
}
.pricing-content h2 {
    font-size: 2em;
    font-weight: bold;
}
.pricing-plans {
    display: flex;
    justify-content: center;
    gap: 50px;
}
.plan-card {
    background-color: #f0f8ff;
    border-radius: 10px;
    overflow: hidden;
    width: calc(33.33% - 14px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}
.plan-header {
    background: linear-gradient(to right, #00a1e9, #0071bc);
    padding: 15px 20px;
    color: white;
}
.plan-subtitle {
    font-size: 14px;
    margin-bottom: 5px;
}
.plan-title {
    font-size: 20px;
    font-weight: bold;
}
.plan-image-container {
    width: 100%;
    height: 200px;
    overflow: hidden;
}
.plan-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.price-container {
    background-color: white;
    border-radius: 5px;
    padding: 15px;
    margin: -30px 20px 0;
    z-index: 1;
    position: relative;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.plan-price {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
}
.plan-features {
    list-style-type: none;
    padding: 0 20px 20px;
    margin-top: 20px;
}
.plan-features li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}
.plan-features li::before {
    content: "✓";
    color: #4CAF50;
    position: absolute;
    left: 0;
}
.recommended {
    background-color: #4CAF50;
    color: white;
    padding: 5px 0;
    font-size: 18px;
    position: absolute;
    top: 20px;
    right: -35px;
    transform: rotate(45deg);
    box-shadow: 0 0 3px rgba(0,0,0,0.3);
    z-index: 2;
    width: 150px;
    text-align: center;
    font-weight: bold;
}
/* reason-section */
.reason-heading {
    text-align: center;
    padding: 0 15px;
}
.reason-heading h2 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
    font-weight: bold;
    line-height: 1.4;
    padding: 0 2px;
}
.reason-heading h3 {
    font-size: 2em;
    margin-top: 0;
    font-weight: bold;
}
.highlight {
    background: linear-gradient(transparent 60%, #ffff00 60%);
    display: inline;
    padding: 0 0.2em;
}
.reason {
    margin-bottom: 50px;
    font-family: sans-serif;
}
.reason-title {
    font-size: 20px;
    color: #005b99;
    margin-bottom: 30px;
    text-align: center;
}
.reason-title .highlight {
    background: linear-gradient(transparent 60%, #ffff00 60%);
    padding: 0 0.2em;
}
.reason-content {
    display: flex;
    gap: 30px;
}
.reason-image {
    flex: 0 0 50%;
}
.reason-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}
.reason-text {
    flex: 1;
}
.reason-headlines {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
}
.reason-headline-margin {
    margin-left: -80px;
}
.reason-headline {
    background: linear-gradient(to right, #005b99, #0077be);
    color: white;
    padding: 10px 20px;
    font-size: 26px;
    font-weight: bold;
    display: inline-block;
}
.reason-headline span {
    color: #ffff00;
}
.reason-description {
    font-size: 16px;
    line-height: 1.6;
    margin-top: 20px;
}
/* problems-section */
.problems-section {
    background-color: #f0f8ff;
    padding: 30px 0;
    margin-bottom: 0px;
    text-align: center;
}
.problems-content h2 {
    font-size: 2em;
}
.problems-content h3 {
    font-size: 1.5rem;
}
.subtitle {
    text-align: center;
    color: #0066cc;
    font-size: 1.2em;
    margin-top: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.subtitle img {
    width: 100px;
    margin-left: 20px;
}
.problems, .solutions {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-color: #ff9933;
    border-radius: 5px;
    padding: 20px;
    margin-top: 20px;
}
ul {
    list-style-type: none;
    padding-left: 0;
}
li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    text-align: left;
    font-size: 16px;
}
.icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    margin-right: 10px;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
}
.sad {
    background-color: #ff6b6b;
    color: white;
}
.happy {
    background-color: #4ecdc4;
    color: white;
}
.arrow {
    text-align: center;
    font-size: 24px;
    color: #0066cc;
    margin: 25px 0;
}
/* features-section */
.features-section {
    text-align: center;
    margin-top: 30px;
}
.features-content {
    text-align: center;
    margin: 30px 0;
    padding: 0 15px;
}
.features-content h2 {
    font-size: 2em;
    line-height: 1.4;
    margin: 0;
}
.features {
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap;
    margin: 0 auto;
    padding: 20px 0;
}
.feature {
    flex-basis: calc(33.333% - 40px);
    text-align: left;
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: white;
    margin-right: 30px;
}
.feature:last-child {
    margin-right: 0;
}
.feature-title {
    background: linear-gradient(to right, #005b99, #0077be);
    color: white;
    padding: 5px 10px;
    display: inline-block;
    margin-bottom: 15px;
    font-weight: bold;
    border-radius: 4px;
}
.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
    text-align: center;
}
.feature-icon img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}
.feature-name {
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 19px;
}
.feature-description {
    font-size: 16px;
    line-height: 1.6;
}
/* projects-section */
.projects-section {
    text-align: center;
}
.projects-content h2 {
    font-size: 2em;
}
.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}
.project {
    margin: 20px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
}
.project-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
}
.project-info {
    padding: 10px;
}
.project-title {
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 1em;
}
.project-course {
    font-size: 0.9em;
    color: #4a90e2;
}
.reservation-section {
    text-align: center;
    padding: 40px 20px;
    background-color: #f5f5f5;
}
.reservation-content h2{
    font-size: 2em;
    font-weight: bold;
    line-height: 1.4;
    margin: 0;
}
.cta-section {
    text-align: center;
    margin-top: 40px;
}
.cta {
    text-align: center;
    margin-top: 40px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}
.cta-button {
    padding: 20px 30px;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(to right, #00a1e9, #0071bc);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    text-decoration: none;
}
/* footer */
.footer {
    background-color: #f0f8ff;
    color: #333;
    padding: 40px 0 20px;
    font-family: Arial, sans-serif;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.footer-logo {
    max-width: 200px;
    margin-bottom: 20px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: #030303;
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-copyright {
    font-size: 14px;
    color: #6c757d;
}

/* SP */
@media screen and (max-width: 768px) {
    .container {
      padding: 20px;
    }
    .header-content {
        flex-direction: column;
        align-items: center;
        padding: 10px;
    }
    .buttons {
        margin-top: 10px;
        gap: 10px;
    }
    .button {
       font-size: 14px;
       padding: 8px 12px;
    }
    .line-button {
        font-size: 14px;
    }
    .hero {
        padding: 120px 0 30px 0;;
    }
    .hero-content {
      flex-direction: column;
      margin-top: 20px;
    }
    .hero-text {
      width: 100%;
      text-align: center;
      margin-bottom: 30px;
    }
    .hero-text h1 {
        font-size: 2em;
    }
    .hero-text p {
        font-size: 1em;
    }
    .hero-image {
      position: static;
      width: 100%;
      transform: none;
    }
    .courses {
      grid-template-columns: 1fr;
    }
    .courses-content h2 {
        font-size: 1.5em;
    }
    .pricing-content h2 {
        font-size: 1.5em;
    }
    .pricing-plans {
      flex-direction: column;
      gap: 30px;
    }
    .plan-card {
      width: 100%;
    }
    .reason-heading h2 {
        font-size: 1.4rem;
        margin-bottom: 0.5rem;
        font-weight: bold;
    }
    .reason-heading h3 {
        font-size: 1.5em;
        margin-top: 0;
        font-weight: bold;
    }
    .reason-heading h3 .highlight {
        display: inline-block;
    }
    .reason-content {
      flex-direction: column;
    }
    .reason-image {
        order: -1;
        margin-bottom: 20px;
    }
    .reason-headline-margin {
      margin-left: 0;
    }
    .reason-headline {
      font-size: 18px;
    }
    .problems-content h2 {
        font-size: 1.5em;
    }
    .problems-content h3 {
        font-size: 1.3rem;
    }
    .subtitle {
        font-size: 1em;
    }
    .subtitle h3 .highlight {
        display: inline-block;
    }
    .features {
      flex-direction: column;
    }
    .feature {
      flex-basis: 100%;
      margin-right: 0;
      margin-bottom: 20px;
    }
    .features-content h2 {
        font-size: 1.5em;
    }
    .features-content h2 .highlight {
        display: inline-block;
    }
    .projects {
      grid-template-columns: 1fr;
    }
    .projects-content h2 {
        font-size: 1.5em;
    }
    .project-title {
        font-size: 1.1em;
    }
    .project-course {
        font-size: 1em;
        color: #4a90e2;
    }
    .reservation-content h2{
        font-size: 1.4em;
    }
    .cta-buttons {
      flex-direction: column;
      gap: 10px;
    }
    .cta-button {
        font-size: 18px;
    }
    .footer-content {
      text-align: center;
    }
  }