/* デザイン変数 */
:root {
    --pop-orange: #ff8e3c;    /* 明るいオレンジ */
    --pop-yellow: #eff0f3;    /* 背景用オフホワイト */
    --leaf-green: #70a1ff;    /* 爽やかなブルーグリーン */
    --soft-pink: #ffc6ff;     /* 楽しさを加えるピンク */
    --accent-red: #ff4d4d;
    --text-main: #2d3436;
    --font-kiwi: 'Kiwi Maru', serif;
    --font-maru: 'Zen Maru Gothic', sans-serif;
}

/* 基本設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--pop-yellow);
    color: var(--text-main);
    font-family: var(--font-maru);
    line-height: 1.9;
    font-size: 18px;
    overflow-x: hidden;
}

/* ヘッダー */
header {
    height: 90px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-kiwi);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--pop-orange);
}

.logo span {
    font-size: 1.2rem;
    color: var(--text-main);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 700;
    font-size: 1rem;
    transition: 0.3s;
}

nav a:hover {
    color: var(--pop-orange);
}

/* ヒーロー：バブルデザイン */
.hero-bubble {
    padding: 100px 40px;
    background: radial-gradient(circle at 80% 20%, #ffdfba 0%, transparent 40%);
    overflow: hidden;
}

.bubble-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
}

.hero-text {
    flex: 1;
    z-index: 2;
}

.hero-text h1 {
    font-family: var(--font-kiwi);
    font-size: 3.5rem;
    line-height: 1.3;
    margin-bottom: 30px;
    color: var(--text-main);
}

.hero-text p {
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.btn-bubble {
    display: inline-block;
    padding: 18px 45px;
    background-color: var(--pop-orange);
    color: #fff;
    text-decoration: none;
    border-radius: 40px 10px 40px 10px; /* 特徴的な形 */
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(255, 142, 60, 0.3);
    transition: 0.3s;
}

.btn-bubble:hover {
    transform: scale(1.05) rotate(-2deg);
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.circle-img-main {
    width: 450px;
    height: 450px;
    border-radius: 50%;
    overflow: hidden;
    border: 15px solid #fff;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    z-index: 2;
}

.circle-img-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.circle-deco {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
}

.deco-1 {
    width: 200px;
    height: 200px;
    background-color: var(--soft-pink);
    top: -30px;
    right: -20px;
    opacity: 0.5;
}

.deco-2 {
    width: 150px;
    height: 150px;
    background-color: var(--leaf-green);
    bottom: -20px;
    left: 20px;
    opacity: 0.4;
}

/* ジャンルグリッド */
.genre-section {
    padding: 120px 40px;
    background-color: #fff;
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%); /* 斜めスリット */
}

.section-title {
    text-align: center;
    margin-bottom: 80px;
}

.section-title h2 {
    font-family: var(--font-kiwi);
    font-size: 2.5rem;
}

.genre-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.genre-card {
    background: var(--pop-yellow);
    border-radius: 30px;
    overflow: hidden;
    transition: 0.3s;
}

.genre-card:hover {
    transform: translateY(-10px);
}

.card-image {
    height: 250px;
}

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

.card-content {
    padding: 30px;
}

.label {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #fff;
}

.culture { background-color: #a29bfe; }
.health { background-color: #55efc4; }
.talk { background-color: #fab1a0; }

.card-content h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

/* はじめてガイド */
.guide-area {
    padding: 150px 40px;
}

.guide-box {
    max-width: 900px;
    margin: 0 auto;
    background: var(--pop-orange);
    color: #fff;
    padding: 80px 40px;
    border-radius: 50px;
    text-align: center;
    position: relative;
}

.guide-box h2 {
    font-family: var(--font-kiwi);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.step-circles {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-weight: 700;
}

.step span {
    width: 50px;
    height: 50px;
    background: #fff;
    color: var(--pop-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* フッター */
footer {
    padding: 80px 40px;
    text-align: center;
    background-color: var(--text-main);
    color: #fff;
}

.copyright {
    margin-top: 20px;
    font-size: 0.8rem;
    opacity: 0.5;
}

/* レスポンシブ */
@media (max-width: 1000px) {
    .bubble-container {
        flex-direction: column;
        text-align: center;
    }
    .circle-img-main {
        width: 300px;
        height: 300px;
    }
    .genre-grid {
        grid-template-columns: 1fr;
    }
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .step-circles {
        flex-direction: column;
        gap: 20px;
    }
}