:root {
    color-scheme: only light;
    --background: #f7f8fb;
    --surface: #ffffff;
    --shadow: 0 24px 48px rgba(17, 23, 36, 0.08);
    --text: #1b1d23;
    --muted: #5a6270;
    --accent: #2d3953;
    --accent-soft: rgba(45, 57, 83, 0.08);
    --accent-strong: rgba(45, 57, 83, 0.16);
    --border: #e1e4eb;
    --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
    --font-sans: "Hiragino Sans", "Yu Gothic", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --max-width: 760px;
}

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

html {
    font-size: 16px;
}

body {
    margin: 0;
    padding: 48px 16px 96px;
    background: linear-gradient(160deg, #f1f4fa 0%, var(--background) 35%, #ffffff 100%);
    color: var(--text);
    font-family: var(--font-serif);
    line-height: 1.8;
    letter-spacing: 0.03em;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.story-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
}

.story-article {
    position: relative;
    background: var(--surface);
    border-radius: 32px;
    padding: clamp(32px, 5vw, 64px);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.story-article::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(45, 57, 83, 0.2), transparent 55%),
        radial-gradient(circle at 85% 6%, rgba(45, 57, 83, 0.14), transparent 50%);
    opacity: 0.35;
    pointer-events: none;
}

.story-content {
    position: relative;
    z-index: 1;
}

.story-header {
    margin-bottom: 40px;
}

.story-label {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-soft);
    border-radius: 999px;
}

.story-title {
    margin: 16px 0 8px;
    font-size: clamp(2.6rem, 5vw, 3.6rem);
    font-weight: 600;
    letter-spacing: 0.06em;
}

.story-meta {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--muted);
    line-height: 1.6;
}

.story-body {
    font-size: 1.06rem;
    text-align: justify;
    text-justify: inter-ideograph;
}

.story-body p {
    margin: 0 0 1.8em;
}

.story-body p:last-child {
    margin-bottom: 0;
}

.chapter-heading {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1.35rem;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin: 2.8em 0 1.4em;
    position: relative;
    padding-left: 20px;
}

.chapter-heading::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 6px var(--accent-soft);
}

.scene-break {
    margin: 3.2em auto;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    letter-spacing: 0.6em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
}

.whisper {
    font-style: italic;
    color: rgba(27, 29, 35, 0.86);
}

.flashback {
    margin: 0 0 2.4em;
    padding: 1.4em 1.6em;
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    border-radius: 16px;
    color: rgba(27, 29, 35, 0.92);
}

.story-footer {
    margin-top: 48px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    font-family: var(--font-sans);
}

.story-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    text-decoration: none;
    font-size: 0.92rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.story-link--home {
    background: var(--accent);
    color: #ffffff;
}

.story-link--home:hover,
.story-link--home:focus {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(45, 57, 83, 0.35);
}

.story-link--next {
    border: 1px solid rgba(45, 57, 83, 0.35);
    color: var(--accent);
    background: #ffffff;
}

.story-link--next:hover,
.story-link--next:focus {
    background: var(--accent-strong);
}

@media (max-width: 768px) {
    body {
        padding: 32px 12px 80px;
    }

    .story-article {
        border-radius: 24px;
        padding: 32px 20px;
    }

    .story-title {
        font-size: clamp(2.4rem, 7vw, 3rem);
    }

    .story-body {
        font-size: 1rem;
        line-height: 1.75;
    }

    .story-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .story-link {
        justify-content: center;
    }
}