/* 変数設定 */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-color: #ff7e5f;
    --text-color: #333;
    --text-muted: #666;
    --bg-white: #ffffff;
    --bg-soft: #f9faff;
    --font-jp: 'Noto Sans JP', sans-serif;
    --font-en: 'Fredoka', sans-serif;
}

/* 基本スタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-jp);
    color: var(--text-color);
    line-height: 1.8;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* ヘッダー */
header {
    padding: 20px 0;
    position: absolute;
    width: 100%;
    z-index: 100;
}

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

.logo {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 600;
    color: var(--bg-white);
}

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

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

nav a {
    text-decoration: none;
    color: var(--bg-white);
    font-weight: 500;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 1;
}

/* ヒーローセクション */
.hero {
    height: 90vh;
    min-height: 600px;
    background: var(--primary-gradient);
    clip-path: ellipse(150% 100% at 50% 0%); /* 流線的なカット */
    color: var(--bg-white);
    display: flex;
    align-items: center;
    padding: 0 40px;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 30px;
}

.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 10px 20px rgba(255, 126, 95, 0.4);
    transition: transform 0.3s;
}

.cta-button:hover {
    transform: translateY(-3px);
}

.hero-visual {
    flex: 1;
    position: relative;
}

.hero-visual img {
    width: 100%;
    border-radius: 30px;
    position: relative;
    z-index: 2;
}

.circle-bg {
    position: absolute;
    width: 120%;
    height: 120%;
    background: rgba(255, 255, 255, 0.1);
    top: -10%;
    left: -10%;
    border-radius: 50%;
    z-index: 1;
}

/* ガイドセクション */
.guide {
    padding: 150px 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px;
}

.guide-item {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 120px;
}

.guide-item.reverse {
    flex-direction: row-reverse;
}

.guide-img {
    flex: 1;
}

.guide-img img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.guide-text {
    flex: 1;
}

.number {
    font-family: var(--font-en);
    font-size: 3rem;
    color: #eee;
    font-weight: 600;
    display: block;
    line-height: 1;
    margin-bottom: 10px;
}

.guide-text h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #444;
}

/* バナーセクション */
.banner {
    padding: 100px 40px;
    text-align: center;
    background-color: var(--bg-soft);
}

.banner-content h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* フッター */
footer {
    padding: 60px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* レスポンシブ */
@media (max-width: 900px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .guide-item, .guide-item.reverse {
        flex-direction: column;
        gap: 40px;
    }
}