/* ═══════════════════════════════════════════
   辺境魔獣生態誌 ── ファタ・マ・サノー男爵 著
   ラスフェル冒険者ギルド資料室蔵
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Noto+Serif+JP:wght@400;500;600;700;900&family=Shippori+Mincho:wght@400;500;600&display=swap');

:root {
    --parchment-bg: #f5e6c8;
    --parchment-bg-dark: #e8d5a8;
    --ink-primary: #3a2a1a;
    --ink-secondary: #5a4632;
    --ink-light: #7a6652;
    --ink-faint: #9a8672;
    --accent-red: #8b3a2a;
    --accent-gold: #b8963a;
    --accent-green: #4a6a3a;
    --border-ornate: #8a7656;
    --shadow-warm: rgba(58, 42, 26, 0.15);
    --shadow-deep: rgba(58, 42, 26, 0.25);

    --font-body: 'Noto Serif JP', 'Yu Mincho', serif;
    --font-heading: 'Shippori Mincho', 'Yu Mincho', serif;
    --font-latin: 'Cinzel', serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--ink-primary);
    line-height: 2;
    background: #2a1e14;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ═══ 表紙 ═══ */
.cover {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    background:
        radial-gradient(ellipse at 50% 30%, rgba(184,150,58,0.08) 0%, transparent 70%),
        linear-gradient(to bottom, var(--parchment-bg) 0%, var(--parchment-bg-dark) 100%);
    background-color: var(--parchment-bg);
    max-width: 780px;
    margin: 0 auto;
    border-bottom: 3px double var(--border-ornate);
    position: relative;
}
.cover::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    box-shadow: inset 0 0 80px rgba(100,70,40,0.25); pointer-events: none;
}

.cover__guild-mark {
    font-family: var(--font-latin);
    font-size: 0.7rem;
    color: var(--ink-faint);
    letter-spacing: 0.5em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.cover__title-latin {
    font-family: var(--font-latin);
    font-size: 1.1rem;
    color: var(--accent-gold);
    letter-spacing: 0.4em;
    margin-bottom: var(--space-xs);
}

.cover__title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--ink-primary);
    letter-spacing: 0.3em;
    margin-bottom: var(--space-xs);
    text-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.cover__subtitle {
    font-size: 0.95rem;
    color: var(--ink-secondary);
    letter-spacing: 0.15em;
    margin-bottom: var(--space-md);
}

.cover__author {
    font-size: 1rem;
    color: var(--ink-secondary);
    letter-spacing: 0.2em;
    margin-bottom: 0.3rem;
}

.cover__author-title {
    font-size: 0.8rem;
    color: var(--ink-light);
    letter-spacing: 0.15em;
}

.cover__ornament {
    color: var(--accent-gold);
    font-size: 1.2rem;
    letter-spacing: 0.5em;
    margin: var(--space-md) 0 0;
    opacity: 0.7;
}

/* ═══ 羊皮紙本体 ═══ */
.manuscript {
    max-width: 780px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg);
    background:
        repeating-linear-gradient(0deg, transparent, transparent 28px, rgba(160,130,90,0.04) 28px, rgba(160,130,90,0.04) 29px),
        radial-gradient(ellipse at 20% 50%, rgba(180,150,100,0.1) 0%, transparent 70%),
        radial-gradient(ellipse at 80% 30%, rgba(160,130,90,0.08) 0%, transparent 60%),
        linear-gradient(to bottom, var(--parchment-bg) 0%, var(--parchment-bg-dark) 30%, var(--parchment-bg) 60%, var(--parchment-bg-dark) 100%);
    background-color: var(--parchment-bg);
    box-shadow: inset 0 0 100px rgba(160,130,90,0.3), 0 0 60px rgba(0,0,0,0.5);
    position: relative;
}
.manuscript::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    box-shadow: inset 0 0 80px rgba(100,70,40,0.25); pointer-events: none; z-index: 1;
}

/* ═══ セクション ═══ */
.section {
    position: relative; z-index: 2;
    margin-bottom: var(--space-xl);
}

.section-break {
    text-align: center;
    padding: var(--space-lg) 0;
    position: relative; z-index: 2;
}
.section-break__line {
    display: block;
    width: 60%;
    margin: 0 auto;
    border: none;
    border-top: 1px solid var(--border-ornate);
    opacity: 0.5;
}
.section-break__ornament {
    display: block;
    margin-top: -0.6em;
    font-size: 1.2rem;
    color: var(--accent-gold);
    opacity: 0.7;
    background: var(--parchment-bg);
    padding: 0 1em;
    display: inline-block;
}

/* ═══ 章見出し ═══ */
.chapter-heading {
    text-align: center;
    margin-bottom: var(--space-lg);
    position: relative; z-index: 2;
}

.chapter-heading__number {
    font-family: var(--font-latin);
    font-size: 0.75rem;
    color: var(--accent-gold);
    letter-spacing: 0.5em;
    text-transform: uppercase;
    display: block;
    margin-bottom: var(--space-xs);
}

.chapter-heading__title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--ink-primary);
    letter-spacing: 0.25em;
    margin-bottom: 0.3rem;
}

.chapter-heading__latin {
    font-family: var(--font-latin);
    font-size: 0.8rem;
    color: var(--ink-light);
    letter-spacing: 0.3em;
    font-style: italic;
}

/* ═══ 本文 ═══ */
.text {
    font-size: 1.02rem;
    line-height: 2.1;
    text-align: justify;
    margin-bottom: 1.5em;
    text-indent: 1em;
    position: relative; z-index: 2;
}

.text--no-indent {
    text-indent: 0;
}

.text--emphasis {
    font-style: italic;
    color: var(--ink-secondary);
}

/* ═══ 図鑑データ ═══ */
.beast-data {
    border: 1px solid var(--border-ornate);
    padding: 1.2em 1.5em;
    margin: var(--space-md) 0;
    background: rgba(184, 150, 58, 0.03);
    position: relative; z-index: 2;
}

.beast-data__title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-gold);
    letter-spacing: 0.2em;
    margin-bottom: 0.8em;
    border-bottom: 1px solid rgba(138, 118, 86, 0.3);
    padding-bottom: 0.4em;
}

.beast-data__row {
    display: flex;
    margin-bottom: 0.4em;
    font-size: 0.92rem;
    line-height: 1.8;
}

.beast-data__label {
    flex: 0 0 6em;
    color: var(--ink-light);
    font-weight: 500;
}

.beast-data__value {
    flex: 1;
    color: var(--ink-secondary);
}

/* ═══ 挿絵 ═══ */
.creature-illustration {
    margin: var(--space-lg) auto;
    max-width: 580px;
    text-align: center;
    position: relative; z-index: 2;
}

.creature-illustration img {
    width: 100%;
    max-width: 550px;
    height: auto;
    border: 3px solid var(--border-ornate);
    padding: 6px;
    background: rgba(245, 230, 200, 0.5);
    box-shadow: 0 4px 20px var(--shadow-warm), inset 0 0 20px rgba(160,130,90,0.15);
    transition: box-shadow 0.4s ease, transform 0.4s ease;
}

.creature-illustration img:hover {
    box-shadow: 0 8px 30px var(--shadow-deep), inset 0 0 20px rgba(160,130,90,0.2);
    transform: scale(1.01);
}

.creature-illustration__caption {
    font-size: 0.78rem;
    color: var(--ink-light);
    margin-top: var(--space-sm);
    letter-spacing: 0.15em;
    font-style: italic;
}

/* ═══ 引用ブロック（男爵の手記風） ═══ */
.field-note {
    border-left: 3px solid var(--accent-green);
    background: rgba(74, 106, 58, 0.04);
    padding: 1em 1.5em;
    margin: var(--space-md) 0;
    position: relative; z-index: 2;
}

.field-note__label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-green);
    letter-spacing: 0.15em;
    margin-bottom: 0.3em;
}

.field-note__text {
    font-family: var(--font-heading);
    font-size: 0.98rem;
    line-height: 2;
    color: var(--ink-secondary);
    font-style: italic;
}

/* ═══ 考察ブロック ═══ */
.analysis {
    border: 2px solid var(--accent-red);
    border-left-width: 4px;
    background: rgba(139, 58, 42, 0.03);
    padding: 1.2em 1.5em;
    margin: var(--space-md) 0;
    position: relative; z-index: 2;
}

.analysis__label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-red);
    letter-spacing: 0.15em;
    margin-bottom: 0.3em;
}

.analysis__text {
    font-size: 0.98rem;
    line-height: 2;
    color: var(--ink-secondary);
}

/* ═══ フッター ═══ */
.colophon {
    text-align: center;
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 2px solid var(--border-ornate);
    margin-top: var(--space-xl);
    position: relative; z-index: 2;
}
.colophon__ornament {
    font-size: 1rem; color: var(--accent-gold); letter-spacing: 0.5em;
    margin-bottom: var(--space-md); opacity: 0.7;
}
.colophon__text {
    font-size: 0.82rem; color: var(--ink-light); line-height: 2.2; letter-spacing: 0.1em;
}
.colophon__disclaimer {
    margin-top: var(--space-md);
    font-size: 0.72rem;
    color: var(--ink-faint);
    line-height: 2;
}

/* ═══ スクロールアニメーション ═══ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══ レスポンシブ ═══ */
@media (max-width: 768px) {
    .manuscript { padding: var(--space-lg) var(--space-md); }
    .cover__title { font-size: 2rem; letter-spacing: 0.2em; }
    .chapter-heading__title { font-size: 1.4rem; }
    .text { font-size: 0.95rem; }
    .beast-data__row { flex-direction: column; }
    .beast-data__label { flex: none; margin-bottom: 0.1em; }
}

@media (max-width: 480px) {
    .manuscript { padding: var(--space-md) var(--space-sm); }
    .cover__title { font-size: 1.6rem; }
    .chapter-heading__title { font-size: 1.2rem; }
    .text { font-size: 0.9rem; }
}

/* ルビ・選択・スクロールバー */
ruby { ruby-align: center; }
rt { font-size: 0.6em; color: var(--ink-light); }
::selection { background: rgba(184,150,58,0.3); color: var(--ink-primary); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #2a1e14; }
::-webkit-scrollbar-thumb { background: var(--border-ornate); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-gold); }

/* ═══ カルーセル ═══ */
.carousel-container {
    position: relative;
    max-width: 580px;
    margin: var(--space-lg) auto;
    z-index: 2;
}
.carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
}
.carousel::-webkit-scrollbar {
    display: none;
}
.carousel-item {
    flex: 0 0 100%;
    scroll-snap-align: center;
    position: relative;
}
.carousel-item img {
    width: 100%;
    height: auto;
    border: 3px solid var(--border-ornate);
    padding: 6px;
    background: rgba(245, 230, 200, 0.5);
    box-shadow: 0 4px 20px var(--shadow-warm), inset 0 0 20px rgba(160,130,90,0.15);
    transition: box-shadow 0.4s ease, transform 0.4s ease;
}
.carousel-item img:hover {
    box-shadow: 0 8px 30px var(--shadow-deep), inset 0 0 20px rgba(160,130,90,0.2);
    transform: scale(1.01);
}
.carousel-caption {
    text-align: center;
    font-size: 0.78rem;
    color: var(--ink-light);
    margin-top: var(--space-sm);
    letter-spacing: 0.15em;
    font-style: italic;
    padding: 0 10px;
}
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-100%);
    background: rgba(58, 42, 26, 0.8);
    color: var(--parchment-bg);
    border: 1px solid var(--border-ornate);
    padding: 8px 12px;
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: 4px;
    transition: background 0.3s;
    z-index: 10;
}
.carousel-btn:hover {
    background: var(--accent-gold);
    color: var(--ink-primary);
}
.carousel-btn.prev {
    left: -25px;
}
.carousel-btn.next {
    right: -25px;
}
@media (max-width: 650px) {
    .carousel-btn.prev { left: -10px; padding: 6px 10px; }
    .carousel-btn.next { right: -10px; padding: 6px 10px; }
}
.carousel-indicators {
    text-align: center;
    margin-top: 15px;
}
.carousel-indicators .dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin: 0 6px;
    background-color: rgba(138, 118, 86, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s;
}
.carousel-indicators .dot.active {
    background-color: var(--accent-gold);
}