/* デザイン変数 */
:root {
    --vitamin-orange: #ff9f1c; /* 明るいオレンジ */
    --leaf-green: #2ec4b6;      /* 鮮やかな青緑 */
    --happy-yellow: #ffbf69;    /* 温かみのある黄色 */
    --pure-white: #ffffff;
    --soft-gray: #f8f9fa;
    --text-dark: #335c67;      /* 濃いめの落ち着いた色 */
    --font-pop: 'Yusei Magic', sans-serif;
    --font-main: 'Zen Maru Gothic', sans-serif;
}

/* 基本リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--pure-white);
    color: var(--text-dark);
    font-family: var(--font-main);
    line-height: 1.8;
    font-size: 18px;
    overflow-x: hidden;
}

/* ヘッダー */
header {
    height: 90px;
    background-color: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 15px 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-pop);
    font-size: 1.8rem;
    color: var(--vitamin-orange);
}

.logo span {
    color: var(--leaf-green);
}

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

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

nav a:hover {
    color: var(--vitamin-orange);
    transform: scale(1.1);
}

/* スプリット・ヒーロー */
.hero-split {
    display: flex;
    height: 700px;
    position: relative;
    background-color: var(--leaf-green);
}

.hero-visual {
    width: 55%;
    clip-path: polygon(0 0, 100% 0, 85% 100%, 0% 100%);
    overflow: hidden;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-message {
    width: 45%;
    display: flex;
    align-items: center;
    padding: 60px;
    background-color: var(--leaf-green);
    color: #fff;
}

.badge {
    background-color: var(--vitamin-orange);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
}

.hero-message h1 {
    font-family: var(--font-pop);
    font-size: 3.5rem;
    line-height: 1.2;
    margin: 20px 0;
}

.btn-round {
    display: inline-block;
    background-color: var(--pure-white);
    color: var(--vitamin-orange);
    text-decoration: none;
    padding: 15px 50px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.2rem;
    margin-top: 30px;
    box-shadow: 0 10px 0 #e6e6e6;
    transition: 0.2s;
}

.btn-round:active {
    transform: translateY(5px);
    box-shadow: 0 5px 0 #e6e6e6;
}

/* ポップなサークルグリッド */
.point-section {
    padding: 100px 20px;
    background-color: var(--soft-gray);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-family: var(--font-pop);
    font-size: 2.5rem;
    color: var(--text-dark);
}

.circle-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.circle-item {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    text-align: center;
    padding: 40px;
    color: var(--text-dark);
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.circle-item:hover {
    transform: rotate(5deg) scale(1.05);
}

.item-orange { background-color: var(--happy-yellow); }
.item-green { background-color: #cbf3f0; }
.item-yellow { background-color: #ffd60a; }

.emoji {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.circle-item h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.circle-item p {
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ワークショーケース：弾むレイアウト */
.work-showcase {
    padding: 120px 20px;
}

.showcase-header {
    text-align: center;
    margin-bottom: 80px;
}

.work-cards {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.work-card {
    flex: 1;
    background-color: var(--pure-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border: 3px solid var(--soft-gray);
}

/* 真ん中のカードだけ少し位置をズラす */
.mt-low {
    margin-top: 50px;
}

.card-img {
    height: 250px;
    overflow: hidden;
}

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

.card-body {
    padding: 30px;
}

.card-body h3 {
    color: var(--leaf-green);
    margin-bottom: 15px;
}

/* フッター */
footer {
    background-color: var(--vitamin-orange);
    color: #fff;
    padding: 80px 20px 40px;
    position: relative;
    text-align: center;
}

.footer-wave {
    position: absolute;
    top: -40px;
    left: 0;
    width: 100%;
    height: 50px;
    background: radial-gradient(circle at 50% 100%, var(--vitamin-orange) 40%, transparent 41%);
    background-size: 80px 100px;
}

.copyright {
    margin-top: 30px;
    font-size: 0.8rem;
    opacity: 0.8;
}

/* レスポンシブ */
@media (max-width: 900px) {
    .hero-split {
        flex-direction: column;
        height: auto;
    }
    .hero-visual, .hero-message {
        width: 100%;
        clip-path: none;
    }
    .hero-visual { height: 350px; }
    .hero-message h1 { font-size: 2.5rem; }
    .circle-grid, .work-cards {
        flex-direction: column;
        align-items: center;
    }
    .mt-low { margin-top: 0; }
    .circle-item { width: 280px; height: 280px; }
}