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

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f0f8ff;
}

.overlay-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    padding: 25px 25px 22px 60px;
    z-index: 20;
}

.overlay-header nav ul {
    display: flex;
    gap: 36px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.overlay-header nav ul li a {
    color: #fff;
    font-weight: 600;
    font-size: 1.1em;
    text-decoration: none;
    letter-spacing: 0.02em;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
}

.overlay-header nav ul li a:hover {
    color: #00ccff;
}


.hero {
    position: relative;
    height: 100vh;
    background: linear-gradient(rgba(0, 50, 150, 0.4), rgba(0, 100, 200, 0.4)),
        url('./img/hero.jpg') center/cover no-repeat;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    color: white;
    text-align: left;
    overflow: hidden;
    padding: 0 0 100px 50px;
}

.hero h1 {
    font-size: 6em;
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    z-index: 10;
    position: relative;
    margin-bottom: 0;
    line-height: 1.2;
    text-align: left;
}

.hero-brand {
    position: absolute;
    right: 30px;
    bottom: 30px;
    font-size: 3em;
    color: #fff;
    font-weight: bold;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    letter-spacing: 0.08em;
    z-index: 10;
    pointer-events: none;
}

.black {
    display: inline-block;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 30px 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
}

.big-blue {
    font-size: 1.3em;
    font-weight: bold;
}


.intro {
    background-color: #e0e0e0;
    background-image: url("img/wave.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 350px 20px;
    position: relative;
    overflow: hidden;
}

.intro-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 40px;
    align-items: center;
}

.intro-text {
    font-size: 1.4em;
    line-height: 1.8;
}

.intro-text p {
    color: white;
    text-shadow:
        2px 0 0 #001E78,
        -2px 0 0 #001E78,
        0 2px 0 #001E78,
        0 -2px 0 #001E78,
        2px 2px 0 #001E78,
        -2px 2px 0 #001E78,
        2px -2px 0 #001E78,
        -2px -2px 0 #001E78,
        1px 0 0 #001E78,
        -1px 0 0 #001E78,
        0 1px 0 #001E78,
        0 -1px 0 #001E78,
        1px 1px 0 #001E78,
        -1px 1px 0 #001E78,
        1px -1px 0 #001E78,
        -1px -1px 0 #001E78;
}

.intro-bubbles {
    position: relative;
    height: 200px;
}

.bubble {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 3s ease-in-out infinite;
}

.bubble:nth-child(1) {
    top: 20px;
    right: 50px;
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    top: 80px;
    right: 20px;
    width: 15px;
    height: 15px;
    animation-delay: 1s;
}

.bubble:nth-child(3) {
    top: 140px;
    right: 70px;
    width: 25px;
    height: 25px;
    animation-delay: 2s;
}

.bubble:nth-child(4) {
    top: 60px;
    right: 100px;
    width: 12px;
    height: 12px;
    animation-delay: 0.5s;
}

.bubble:nth-child(5) {
    top: 120px;
    right: 40px;
    width: 18px;
    height: 18px;
    animation-delay: 1.5s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
        opacity: 0.3;
    }

    50% {
        transform: translateY(-10px);
        opacity: 0.6;
    }
}


.gallery {
    padding: 80px 20px;
    background: linear-gradient(to bottom, #e0e0e0, #e0e0e0);
    position: relative;
    overflow: hidden;
    min-height: 600px;
}

.gallery-container {
    position: relative;
    width: 95%;
    max-width: 1800px;
    margin: 40px auto;
    height: 1000px;
}

.gallery-left,
.gallery-right {
    display: none;
}

.gallery-item {
    position: absolute;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease, z-index 0.1s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
    z-index: 100;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.gallery-item img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}


.gallery-item.manta {
    width: 30%;
    height: auto;
    top: 15%;
    left: 0%;
    z-index: 3;
}

.gallery-item.coral {
    width: 32%;
    height: auto;
    top: 0%;
    right: 20%;
    z-index: 2;
}

.gallery-item.tunnel {
    width: 28%;
    height: auto;
    top: 35%;
    left: 20%;
    z-index: 5;
}

.gallery-item.jelly {
    width: 26%;
    height: auto;
    top: 28%;
    right: 0%;
    z-index: 4;
}

.gallery-item.dolphin {
    width: 15%;
    height: auto;
    bottom: 45%;
    right: 33%;
    z-index: 3;
}

.gallery-item.seal {
    width: 28%;
    height: auto;
    bottom: 8%;
    left: 0%;
    z-index: 4;
}

.gallery-item.eel {
    width: 25%;
    height: auto;
    bottom: 0%;
    right: 43%;
    z-index: 2;
}

.gallery-item.ray {
    width: 35%;
    height: auto;
    bottom: 10%;
    right: 3%;
    z-index: 5;
}



.content-sections {
    background: #e0e0e0;
}

.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.content-section:nth-child(even) {
    background: #e0e0e0;
}

.content-section.reverse {
    direction: rtl;
}

.content-section.reverse>* {
    direction: ltr;
}

.content-text h2 {
    font-size: 2.5em;
    color: #001f3f;
    margin-bottom: 30px;
    line-height: 1.3;
    font-weight: 300;
}

.content-text p {
    font-size: 1.1em;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
}

.content-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    height: 400px;
}

.content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #0074D9, #001f3f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2em;
    position: relative;
}

.placeholder-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><g fill="white" opacity="0.1"><circle cx="50" cy="50" r="20"/><circle cx="150" cy="80" r="15"/><circle cx="100" cy="150" r="25"/><circle cx="180" cy="40" r="10"/></g></svg>') repeat;
    animation: float 4s ease-in-out infinite;
}


.events {
    padding: 80px 20px;
    background: linear-gradient(135deg, #e0e0e0 100%, #f0f0f0 0%);
    text-align: center;
}

.events h2 {
    font-weight: 900;
    border-bottom: 3px solid #001E78;
    display: inline-block;
    padding-bottom: 0.2em;
    margin-bottom: 30px;
}

.event-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.event-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.event-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0074D9, #001f3f);
}

.event-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, #0074D9, #001f3f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1em;
    position: relative;
    overflow: hidden;
}

.event-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-card p {
    padding: 25px;
    font-size: 1.1em;
    color: #333;
    font-weight: 500;
}

.event-label {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 25px;
    margin: 0;
}

.event-label-icon {
    width: 1.5em;
    height: 1.5em;
    display: block;
    flex-shrink: 0;
}

.ticket-text {
    color: #000;
    font-weight: bold;
}


.news-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, #e0e0e0 100%, #f0f0f0 0%);
}

.news-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.news-card-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(45deg, #0074D9, #001f3f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9em;
    position: relative;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-card h3 {
    font-size: 1em;
    color: #333;
    margin: 15px 15px 8px;
    font-weight: 500;
    line-height: 1.4;
}

.news-card .date {
    font-size: 0.8em;
    color: #666;
    margin: 0 15px 15px;
}


.scene-sections {
    width: 100%;
    padding: 0 20px 36px;
    background: none;
    margin: 0 auto;
    box-sizing: border-box;
    background-color: #e0e0e0;
}

.scene {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 50px auto;
    min-height: 600px;
    border-radius: 10px;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    box-shadow: 0 10px 40px rgba(0, 0, 64, 0.15);
}

.scene1 {
    background-image: url('img/img_01.png');
}

.scene2 {
    background-image: url('img/img_02.png');
}

.scene3 {
    background-image: url('img/img_03.png');
}

.scene-content {
    position: relative;
    z-index: 2;
    max-width: none;
    width: 50%;
    margin: 0;
    color: #fff;
    text-align: left;
    padding: 240px 1vw 54px 3vw;
    backdrop-filter: blur(0.5px);
}

.scene-content h2 {
    font-size: 2.5em;
    margin-bottom: 28px;
    font-weight: bold;
    line-height: 1.25;
    letter-spacing: 0.06em;
    text-shadow: 0 4px 16px rgba(0, 0, 64, 0.18);
}

.scene-content p {
    font-size: 1em;
    line-height: 1.8;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.17);
}


.faq {
    padding: 80px 20px;
    background: linear-gradient(135deg, #bec4ed 0%, #B6BCE0 100%);
    text-align: center;
}

.faq h2 {
    font-size: 2.5em;
    color: #001f3f;
    margin-bottom: 20px;
    font-weight: 500;
}

.faq>p {
    color: #0074D9;
    margin-bottom: 50px;
    font-size: 1.1em;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq>p:hover {
    color: #001f3f;
}

.faq ul {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.faq li {
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
    font-size: 1.1em;
    color: black;
    transition: color 0.3s ease;
    cursor: pointer;
}

.faq li:hover {
    color: #0074D9;
}

.faq li:last-child {
    border-bottom: none;
}


.footer {
    background-color: #001f3f;
    color: white;
    padding: 40px 20px 20px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto 40px;
    flex-wrap: wrap;
}

.footer-logo img {
    width: 100px;
    height: auto;
}

.footer-nav {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.footer-nav a {
    display: flex;
    align-items: center;
    gap: 0.5em;
}

.footer-nav-icon {
    width: 1.6em;
    height: 1.6em;
    display: block;
    margin-left: 0.3em;
}

.footer-nav a:hover {
    opacity: 0.7;
}

.footer-links {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer .column h4 {
    font-size: 1.1em;
    color: #00ccff;
    margin-bottom: 15px;
    font-weight: bold;
}

.footer .column p {
    font-size: 0.95em;
    margin-bottom: 8px;
    color: white;
    opacity: 0.9;
    cursor: pointer;
    transition: opacity 0.3s;
}

.footer .column p:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    font-size: 0.9em;
    opacity: 0.8;
}

.footer-link,
.footer-link:visited,
.footer-link:link,
.footer-link:active,
.footer-link:focus,
.footer-link:hover {
    color: #fff;
    text-decoration: none;
}


.footer-link,
.footer-link:visited,
.footer-link:link,
.footer-link:active,
.footer-link:focus,
.footer-link:hover {
    color: #fff;
}

.ticket-btn-link,
.ticket-btn-link:visited,
.ticket-btn-link:link,
.ticket-btn-link:active,
.ticket-btn-link:focus,
.ticket-btn-link:hover {
    display: flex;
    align-items: center;
    gap: 0.5em;
    background-color: #fff;
    color: #001E78;
    font-weight: bold;
    padding: 12px 28px;
    border-radius: 30px;
    box-shadow: 0 2px 8px rgba(0, 30, 120, 0.10);
    border: 2px solid #001E78;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    text-decoration: none;
    font-size: 1.1em;
}

.ticket-btn-link:hover {
    background: #dbeafe;
    color: #001E78;
    box-shadow: 0 4px 18px rgba(0, 30, 120, 0.12);
}

.ticket-btn {
    background-color: white;
    color: #000;
    padding: 10px 15px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    font-weight: bold;
}

.ticket-btn .icon {
    margin-right: 5px;
    font-size: 1.2em;
}


.fixed-icon {
    position: fixed;
    right: 40px;
    bottom: 120px;
    width: 80px;
    height: auto;
    z-index: 999;
    cursor: pointer;
    transition: opacity 0.3s;
}

.fixed-icon:hover {
    opacity: 0.7;
}


@media (max-width: 1024px) {
    .gallery-container {
        height: 650px;
    }
}

@media (max-width: 768px) {


    .overlay-header nav ul {
        flex-direction: column;
        gap: 15px;
        padding: 20px;
        position: absolute;
        top: 0px;
        right: 0px;
        border-radius: 10px;
        z-index: 999;
    }

    .overlay-header nav ul li a {
        font-size: 1.2em;
        color: #fff;
    }


    .hero h1 {
        font-size: 2.5em;
    }


    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .intro-bubbles {
        display: none;
    }


    .gallery {
        min-height: auto;
    }

    .gallery-container {
        position: static;
        display: flex;
        flex-direction: column;
        height: auto;
        max-width: none;
        padding: 0;
        align-items: center;
    }

    .gallery-item {
        position: static !important;
        width: 90% !important;
        max-width: 400px;
        height: 200px !important;
        margin-bottom: 20px;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        z-index: auto !important;
    }


    .content-section {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .content-section.reverse {
        direction: ltr;
    }

    .content-text h2 {
        font-size: 2em;
    }

    .content-image {
        height: 300px;
    }


    .event-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .news-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }


    .faq ul {
        max-width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .footer-top {
        flex-direction: column;
        gap: 20px;
    }

    .footer-nav {
        flex-direction: column;
        gap: 15px;
    }

    .scene {
        max-width: 96vw;
        min-height: 250px;
        border-radius: 12px;
    }

    .scene-content {
        padding: 34px 4vw;
    }

    .scene-content h2 {
        font-size: 1.5em;
    }

    .scene-content p {
        font-size: 1em;
    }

    .fixed-icon {
        bottom: 200px;
        right: 10px;
        width: 60px;
    }
}