@charset "UTF-8";

/* =========================================
   Base Setup (Resort Style)
   ========================================= */
:root {
    --bg-color: #ffffff;
    --text-main: #333333;
    --text-light: #666666;
    --accent: #00b4d8;    /* ターコイズブルー */
    --accent-sand: #eaddcf; /* 砂浜のベージュ */
    --font-en: 'Montserrat', sans-serif;
    --font-jp: 'Zen Kaku Gothic New', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-jp);
    line-height: 1.8;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { width: 100%; height: 100%; object-fit: cover; display: block; }
ul { list-style: none; }

/* 英語フォント適用 */
.en { font-family: var(--font-en); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; }

/* アニメーション */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1.2s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   Header
   ========================================= */
.header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 1.5rem 4%;
    display: flex; justify-content: space-between; align-items: center;
    z-index: 100;
    transition: 0.4s;
    background: linear-gradient(to bottom, rgba(0,0,0,0.4), transparent);
}
.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 4%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.header.scrolled .logo, .header.scrolled .nav a, .header.scrolled .hamburger span {
    color: var(--text-main);
    background-color: var(--text-main); /* ハンバーガー用 */
}
/* 初期状態は白文字 */
.logo, .nav a { color: #fff; }
.hamburger span { background-color: #fff; }

.logo {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.1em;
}

.nav ul { display: flex; gap: 2.5rem; }
.nav a { font-family: var(--font-en); font-size: 0.9rem; position: relative; background: none !important; }
.nav a::after {
    content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px;
    background: var(--accent); transition: 0.3s;
}
.nav a:hover::after { width: 100%; }

.btn-reserve-nav {
    border: 1px solid #fff;
    padding: 0.6rem 2rem;
    border-radius: 50px;
}
.header.scrolled .btn-reserve-nav { border-color: var(--accent); color: var(--accent) !important; }
.header.scrolled .btn-reserve-nav:hover { background: var(--accent); color: #fff !important; }

.hamburger { display: none; cursor: pointer; }
.hamburger span { display: block; width: 30px; height: 2px; margin: 8px 0; transition: 0.3s; }

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
}
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center;
}
/* ズームアニメーション */
.hero-bg { animation: zoomSlow 20s infinite alternate; }
@keyframes zoomSlow { from { transform: scale(1); } to { transform: scale(1.1); } }

.hero-content {
    position: absolute;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    width: 100%;
}
.hero-title {
    font-family: var(--font-en);
    font-size: 5rem; /* インパクト大 */
    font-weight: 800;
    line-height: 1;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.hero-sub {
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* =========================================
   Common Layout
   ========================================= */
.section { padding: 8rem 5%; }
.container { max-width: 1200px; margin: 0 auto; }

.section-header {
    text-align: center; margin-bottom: 5rem;
}
.section-header span {
    display: block; font-family: var(--font-en); color: var(--accent);
    margin-bottom: 1rem; font-weight: 700;
}
.section-header h2 {
    font-size: 2.5rem; color: var(--text-main);
}

/* Grid & Cards */
.resort-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
}
.resort-card {
    position: relative; height: 500px; overflow: hidden;
    cursor: pointer;
}
.resort-card img {
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.resort-card:hover img { transform: scale(1.1); }
.card-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: #fff;
}
.card-overlay h3 { font-size: 1.5rem; margin-bottom: 0.5rem; font-family: var(--font-en); }

/* Buttons */
.btn-outline {
    display: inline-block; border: 1px solid var(--text-main); color: var(--text-main);
    padding: 1rem 4rem; margin-top: 3rem; font-family: var(--font-en); transition: 0.3s;
}
.btn-outline:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* =========================================
   Sub Pages
   ========================================= */
.page-header {
    height: 50vh;
    position: relative;
    margin-bottom: 5rem;
    display: flex; justify-content: center; align-items: center;
}
.page-header-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center; z-index: -1;
    filter: brightness(0.8);
}
.page-title {
    color: #fff; font-family: var(--font-en); font-size: 4rem; font-weight: 800;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* Concept / Split Layout */
.split-section {
    display: flex; align-items: center; margin-bottom: 8rem;
}
.split-section:nth-child(even) { flex-direction: row-reverse; }
.split-img {
    width: 60%; height: 600px;
}
.split-content {
    width: 40%; padding: 4rem;
    background: #fff;
    margin-left: -5%; /* 重ねる */
    position: relative; z-index: 2;
    box-shadow: 0 20px 50px rgba(0,0,0,0.05);
}
.split-section:nth-child(even) .split-content { margin-left: 0; margin-right: -5%; }
.split-content h3 {
    font-size: 2rem; margin-bottom: 1.5rem; color: var(--accent);
}

/* Rooms / Activities Grid */
.wide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.wide-item img { height: 350px; margin-bottom: 1.5rem; }
.wide-item h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.wide-item p { color: var(--text-light); }

/* Form */
.form-area {
    max-width: 800px; margin: 0 auto;
    padding: 3rem; background: #f9f9f9;
}
input, textarea, select {
    width: 100%; padding: 1.2rem; border: none; background: #fff;
    margin-bottom: 1.5rem; font-family: inherit;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}
.btn-submit {
    width: 100%; padding: 1.5rem; background: var(--accent); color: #fff;
    border: none; font-family: var(--font-en); font-weight: 700; cursor: pointer;
    font-size: 1.1rem; letter-spacing: 0.1em; transition: 0.3s;
}
.btn-submit:hover { background: #0096b4; }

/* Footer */
.footer {
    background: #f0f0f0; padding: 5rem 5%; text-align: center;
}
.footer-logo { font-family: var(--font-en); font-size: 2rem; font-weight: 800; margin-bottom: 2rem; color: var(--text-main); }
.footer-info { color: var(--text-light); margin-bottom: 2rem; font-size: 0.9rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; }
    .hamburger { display: block; }
    .hero-title { font-size: 3rem; }
    .resort-grid { grid-template-columns: 1fr; }
    .split-section, .split-section:nth-child(even) { flex-direction: column; margin-bottom: 4rem; }
    .split-img { width: 100%; height: 300px; }
    .split-content, .split-section:nth-child(even) .split-content { width: 90%; margin: -50px auto 0; padding: 2rem; }
    .wide-grid { grid-template-columns: 1fr; gap: 3rem; }
}