:root {
    --pastel-pink: #fdf2f4;   /* 背景用：極薄ピンク */
    --accent-pink: #f48fb1;   /* アクセント：パステルピンク */
    --deep-pink: #ec407a;     /* 強いアクセント */
    --text-color: #4e342e;    /* 文字：優しいブラウン */
    --white: #ffffff;
}

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

body {
    font-family: 'Noto Serif JP', serif;
    color: var(--text-color);
    background-color: var(--white);
    line-height: 1.8;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; }
.text-center { text-align: center; }
.bg-pink { background-color: var(--pastel-pink); }
.mt-50 { margin-top: 50px; }

/* Header */
header { padding: 25px 0; position: sticky; top: 0; background: rgba(255,255,255,0.9); z-index: 100; border-bottom: 1px solid var(--pastel-pink); }
.header-flex { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.4rem; letter-spacing: 3px; color: var(--deep-pink); }
nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 25px; }
nav ul li a { text-decoration: none; color: var(--text-color); font-size: 0.9rem; font-weight: bold; }
.insta-link { color: var(--deep-pink); }

/* Hero */
.hero { height: 70vh; overflow: hidden; }
.hero-inner { height: 100%; background-size: cover; background-position: center; position: relative; }
.hero-overlay { position: absolute; inset: 0; background: rgba(255, 255, 255, 0.2); display: flex; align-items: center; justify-content: center; }
.hero-text { text-align: center; background: rgba(255,255,255,0.85); padding: 50px; border-radius: 5px; max-width: 600px; }
.tag { font-family: 'Montserrat', sans-serif; font-size: 0.8rem; letter-spacing: 2px; color: var(--deep-pink); display: block; margin-bottom: 10px; }
.hero-text h2 { font-size: 2.5rem; margin-bottom: 20px; }
.btn-primary { display: inline-block; background: var(--deep-pink); color: white; padding: 15px 35px; text-decoration: none; border-radius: 30px; transition: 0.3s; }

/* Concept */
.concept-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.concept-image-main img { width: 100%; border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; box-shadow: 20px 20px 0 var(--pastel-pink); }
.title-set .en { color: var(--accent-pink); font-family: 'Montserrat', sans-serif; font-weight: bold; }
.title-set h2 { font-size: 1.8rem; margin-bottom: 25px; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-top: 40px; }
.gallery-item { position: relative; overflow: hidden; border-radius: 15px; background: #fff; box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.gallery-item img { width: 100%; height: 400px; object-fit: cover; transition: 0.5s; }
.gallery-item:hover img { transform: scale(1.1); }
.item-info { padding: 20px; text-align: center; }
.item-info h3 { font-size: 1rem; margin-bottom: 5px; }
.item-info p { font-size: 0.8rem; color: var(--accent-pink); }

.btn-outline { display: inline-block; border: 2px solid var(--deep-pink); color: var(--deep-pink); padding: 12px 30px; text-decoration: none; border-radius: 30px; font-weight: bold; }

/* Footer */
footer { padding: 80px 0 40px; border-top: 1px solid var(--pastel-pink); }
.footer-content { display: flex; justify-content: space-between; align-items: flex-end; }
.footer-left h2 { color: var(--deep-pink); margin-bottom: 15px; }
.footer-right { text-align: right; }
.footer-right a { color: var(--deep-pink); text-decoration: none; font-weight: bold; font-size: 1.2rem; }
.copyright { margin-top: 20px; font-size: 0.8rem; opacity: 0.5; }

/* Responsive */
@media (max-width: 900px) {
    .gallery-grid { grid-template-columns: 1fr 1fr; }
    .concept-content { grid-template-columns: 1fr; text-align: center; }
    .hero-text { margin: 0 20px; }
}
@media (max-width: 600px) {
    .gallery-grid { grid-template-columns: 1fr; }
    .hero-text h2 { font-size: 1.8rem; }
}