@charset "UTF-8";

:root {
    --bg-yellow: #FDD000;
    --text-black: #111111;
    --title-blue: #1b4b9b;
    --title-orange: #ea580c;
    --text-red: #da291c;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-yellow);
    color: var(--text-black);
    font-family: "Zen Maru Gothic", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    font-weight: 500;
    margin: 0;
    padding: 0;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}

/* ─── 背景装飾 ─── */
.bg-left,
.bg-right {
    position: fixed;
    top: 0;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.bg-left {
    left: 0;
    width: clamp(160px, 22vw, 420px);
    margin-top: 100px;
}

.bg-right {
    right: -60px;
    width: clamp(200px, 38vw, 680px);
}

.bg-left img,
.bg-right img {
    width: 100%;
    height: auto;
}

/* ─── ページ全体のラッパー ─── */
.page-wrapper {
    position: relative;
    z-index: 1;
}

/* ─── ヘッダー ─── */
header {
    padding: 22px clamp(20px, 5vw, 80px);
}

.logo-link {
    display: inline-block;
    transition: opacity 0.2s ease;
}

.logo-link:hover {
    opacity: 0.75;
}

.logo-icon {
    width: clamp(140px, 18vw, 210px);
}

/* ─── ヒーロー ─── */
.hero {
    text-align: center;
    padding: 0 20px 0;
    margin-top: -20px;
}

.hero-face {
    width: clamp(120px, 22vw, 280px);
    margin: 0 auto 24px;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero-title {
    margin: 0 0 20px;
}

.hero-title img {
    max-width: clamp(280px, 60vw, 600px);
    animation: fadeUp 0.9s cubic-bezier(.22, 1, .36, 1) both;
}

.hero-subtitle {
    margin: 0 0 16px;
}

.hero-subtitle img {
    max-width: clamp(260px, 70vw, 680px);
    animation: fadeUp 1.1s cubic-bezier(.22, 1, .36, 1) 0.1s both;
}

.hero-date {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 700;
    letter-spacing: 0.06em;
    margin: 0;
    animation: fadeUp 1s cubic-bezier(.22, 1, .36, 1) 0.2s both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── コンテンツエリア ─── */
.content-area {
    max-width: 680px;
    margin: 60px auto 0;
    padding: 0 clamp(16px, 4vw, 40px);
}

.section {
    margin-bottom: 52px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.title-icon {
    width: clamp(26px, 4vw, 36px);
    flex-shrink: 0;
}

.section-title {
    font-size: clamp(1.3rem, 3.5vw, 1.9rem);
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.04em;
    line-height: 1.3;
}

.title-blue {
    color: var(--title-blue);
}

.title-orange {
    color: var(--title-orange);
}

.section p {
    font-size: clamp(0.95rem, 2.2vw, 1.15rem);
    line-height: 1.95;
    margin: 0 0 12px;
}

.note {
    color: var(--text-red);
    font-size: clamp(0.78rem, 1.8vw, 0.9rem) !important;
    margin-top: 12px !important;
}

/* ─── Coming Soonエリア ─── */
.coming-soon-wrapper {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
    margin-top: 20px;
    padding: 0 clamp(16px, 4vw, 40px);
    gap: 0;
    position: relative;
}

.coming-soon {
    flex: 0 0 auto;
    width: clamp(200px, 55vw, 560px);
    padding-left: clamp(10px, 3vw, 40px);
}

.coming-soon img {
    width: 100%;
    height: auto;
    display: block;
}

.coming-soon-face {
    flex: 0 0 auto;
    width: clamp(140px, 38vw, 420px);
    margin-top: clamp(60px, 10vw, 140px);
}

.coming-soon-face img {
    width: 100%;
    height: auto;
    display: block;
}

/* ─── フッター ─── */
footer {
    text-align: center;
    padding: 36px 20px 28px;
    font-size: clamp(0.78rem, 1.8vw, 0.95rem);
    color: var(--text-black);
}

/* ─── スクロールインジケーター ─── */
.scroll-hint {
    text-align: center;
    margin-top: 36px;
    margin-bottom: -20px;
    opacity: 0;
    animation: fadeIn 1s ease 1.5s forwards;
}

.scroll-hint span {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    font-weight: 700;
    writing-mode: vertical-rl;
    animation: bounce 1.8s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(8px);
    }
}

@keyframes fadeIn {
    to {
        opacity: 0.6;
    }
}

/* ─── レスポンシブ ─── */
@media (max-width: 768px) {
    .bg-left {
        opacity: 0.45;
    }

    .bg-right {
        opacity: 0.45;
        right: -30px;
    }

    .hero {
        margin-top: 0;
    }

    .content-area {
        margin-top: 44px;
    }

    .coming-soon-wrapper {
        gap: 0;
    }

    .coming-soon {
        width: clamp(160px, 52vw, 320px);
    }

    .coming-soon-face {
        width: clamp(120px, 40vw, 260px);
        margin-top: clamp(40px, 8vw, 100px);
    }
}

@media (max-width: 480px) {
    .bg-left {
        opacity: 0.3;
    }

    .bg-right {
        opacity: 0.3;
    }

    .section {
        margin-bottom: 40px;
    }

    .coming-soon-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .coming-soon {
        width: 60%;
        padding-left: clamp(10px, 4vw, 24px);
    }

    .coming-soon-face {
        width: 50%;
        margin-top: -40px;
        align-self: flex-end;
    }
}