/* rule.css - ルールページ専用スタイル */

/* --- グローバル設定 & 基本スタイルリセット --- */
:root {
    --primary-color: #6C63FF;
    --secondary-color: #48D1CC;
    --accent-color: #FFD05A;
    --discord-color: #5865F2;
    --dark-bg: #181A21;
    --medium-dark-bg: #20232F;
    --light-bg: #2A2E40;
    --text-color: #EAEAEA;
    --text-muted: #B0B5C8;
    --border-color: #353A4E;
    --glass-bg: rgba(30, 32, 41, 0.8);
    --font-primary: 'Poppins', 'Noto Sans JP', sans-serif;
    --shadow-medium: 0 12px 38px rgba(0,0,0,0.25);
    --shadow-strong: 0 18px 55px rgba(0,0,0,0.3);
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --rgb-primary-color: 108, 99, 255;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 100%; overflow-y: scroll; }

body {
    font-family: var(--font-primary); background-color: var(--dark-bg); color: var(--text-color);
    line-height: 1.75; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; position: relative;
}
body.no-scroll { overflow-y: hidden; }
main { display: block; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: var(--secondary-color); transition: color var(--transition-fast); }
a:hover { color: var(--accent-color); }
.container { width: 90%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- 基本テキストスタイル --- */
h1,h2,h3,p,code { margin-bottom: 0.5em; }
p, li { color: var(--text-muted); }
code { background-color: var(--light-bg); padding: 0.3em 0.6em; border-radius: var(--border-radius-sm); color: var(--accent-color); font-family: monospace; }
.inline-link { color: var(--accent-color); text-decoration: none; border-bottom: 1px dotted var(--accent-color); font-weight: 500; transition: color var(--transition-fast), border-bottom-color var(--transition-fast); }
.inline-link:hover { color: var(--secondary-color); border-bottom-color: var(--secondary-color); }
.br-sp { display: none; }
.br-pc { display: block; }

/* --- アニメーションクラス --- */
.animate-on-scroll, .animate-on-load { opacity: 0; visibility: hidden; }
.is-visible { visibility: visible !important; opacity: 1 !important; transform: none !important; }
[data-animation] { transition-property: opacity, transform; transition-duration: 0.8s; transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.fadeInUpCustom { transform: translateY(50px); }

/* --- ヘッダー & ナビゲーション (共通) --- */
header { background-color: transparent; padding: 18px 0; position: fixed; width: 100%; top: 0; left: 0; z-index: 1000; transition: all var(--transition-normal); }
header.scrolled { background-color: var(--glass-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 6px 22px rgba(0,0,0,0.3); padding: 10px 0; }
header .container { display: flex; justify-content: space-between; align-items: center; }
#logo-img { height: 38px; transition: all var(--transition-fast); filter: drop-shadow(0 3px 7px rgba(0,0,0,0.4)); }
#logo-img:hover { transform: scale(1.08); filter: drop-shadow(0 4px 10px rgba(0,0,0,0.5));}
header.scrolled #logo-img, header.scrolled .nav-link, header.scrolled .nav-discord-link { text-shadow: none; }
.main-nav ul { list-style: none; display: flex; align-items: center; margin:0; padding:0; }
.main-nav ul li { margin-left: 22px; }
.main-nav ul li a.nav-link { color: #FFF; font-weight: 500; font-size: 0.93rem; padding: 12px 8px; position: relative; letter-spacing: 0.7px; text-shadow: 0 1px 6px rgba(0,0,0,0.5); transition: all var(--transition-fast); opacity: 0.95; }
.main-nav ul li a.nav-link:hover, .main-nav ul li a.nav-link.active { opacity: 1; color: var(--accent-color); }
.main-nav ul li a.nav-link::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%) scaleX(0); width: 70%; height: 2.5px; background-color: var(--accent-color); border-radius: 1.5px; transition: transform 0.35s cubic-bezier(0.19, 1, 0.22, 1); transform-origin: center; }
.main-nav ul li a.nav-link:hover::after, .main-nav ul li a.nav-link.active::after { transform: translateX(-50%) scaleX(1); }
.main-nav ul li a.nav-link.active { font-weight: 600; }
.nav-discord-link { display: inline-flex; align-items: center; padding: 7px 14px !important; background-color: transparent; border: 1.5px solid rgba(255,255,255,0.6); border-radius: var(--border-radius-md); color: #FFF !important; text-shadow: none !important; opacity: 1 !important; font-weight: 500; transition: all var(--transition-fast); }
.nav-discord-link:hover { background-color: var(--primary-color); color: #FFF !important; border-color: var(--primary-color); box-shadow: 0 0 18px rgba(var(--rgb-primary-color), 0.5); transform: scale(1.05); }
.nav-discord-link i { margin-right: 7px; font-size: 1em; }
.hamburger-menu { display: none; background: none; border: none; cursor: pointer; padding: 8px; z-index: 1002; margin-left: auto; position: relative; width: 30px; height: 30px;}
.hamburger-bar { display: block; width: 26px; height: 2.5px; background-color: #FFF; margin: 6px auto; transition: all var(--transition-normal); border-radius: 3px; position: absolute; left: 2px; text-shadow: 0 1px 3px rgba(0,0,0,0.5); }
.hamburger-bar:nth-child(1) { top: 2px; }
.hamburger-bar:nth-child(2) { top: 11.5px; }
.hamburger-bar:nth-child(3) { top: 21px; }
.hamburger-menu.active .hamburger-bar { background-color: var(--text-color) !important; text-shadow: none; }
.hamburger-menu.active .hamburger-bar:nth-child(1) { top: 11.5px; transform: rotate(45deg); }
.hamburger-menu.active .hamburger-bar:nth-child(2) { opacity: 0; transform: translateX(-20px); }
.hamburger-menu.active .hamburger-bar:nth-child(3) { top: 11.5px; transform: rotate(-45deg); }

/* --- フッター (共通) --- */
footer { background-color: #12141a; border-top: 1px solid var(--border-color); padding: 45px 0; text-align: center; position: relative; z-index: 5; }
footer p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 7px; }

/* --- ここからルールページ固有のスタイル --- */
.page-content-container { padding-top: 120px; padding-bottom: 90px; min-height: calc(100vh - 120px - 92px); }
.page-header { text-align: center; margin-bottom: 60px; }
.page-main-title { font-size: clamp(2.2em, 5.5vw, 3.5em); color: var(--text-color); margin-bottom: 0.4em; }
.page-main-title i { color: var(--primary-color); margin-right: 10px; }
.page-intro { font-size: clamp(0.95rem, 2.2vw, 1.15rem); color: var(--text-muted); max-width: 850px; margin-left: auto; margin-right: auto; line-height: 1.8; }
.rules-article { max-width: 920px; margin: 0 auto; }
.page-section { background-color: var(--medium-dark-bg); padding: 35px 40px; border-radius: var(--border-radius-lg); margin-bottom: 35px; border: 1px solid var(--border-color); box-shadow: var(--shadow-medium); }
.section-heading-styled { font-size: clamp(1.6em, 3.8vw, 2.1em); color: var(--secondary-color); margin-bottom: 25px; padding-bottom: 15px; border-bottom: 2px solid var(--border-color); display: flex; align-items: center; font-weight: 600; }
.section-heading-styled i { margin-right: 15px; font-size: 0.95em; opacity: 0.9; }
.section-description { font-size: 0.95rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 20px; }
.page-closing { text-align: center; font-size: 1rem; color: var(--text-muted); margin-top: 50px; padding: 25px; background-color: var(--medium-dark-bg); border-radius: var(--border-radius-md); border: 1px solid var(--border-color); line-height: 1.8; }
.rules-category { margin-bottom: 30px; }
.rules-category:last-child { margin-bottom: 0; }
.rules-category-title { font-size: clamp(1.25em, 2.8vw, 1.6em); color: var(--text-color); margin-bottom: 18px; display: flex; align-items: center; border-left: 5px solid var(--accent-color); padding-left: 15px; font-weight: 600; }
.rules-category-title i { margin-right: 12px; font-size: 0.9em; color: var(--accent-color); }
.info-list-styled { list-style: none; padding-left: 0; }
.info-list-styled li { margin-bottom: 14px; font-size: 0.95rem; display: flex; align-items: flex-start; line-height: 1.75; }
.info-list-styled .list-icon { margin-right: 10px; width: 18px; flex-shrink: 0; text-align: center; padding-top: 4px; }
.info-list-styled .list-icon i { font-size: 0.9em; }
.info-list-styled .fa-check { color: var(--secondary-color); }
.info-list-styled .fa-times { color: #E07A5F; }
.info-list-styled .fa-exclamation-triangle, .info-list-styled .fa-clock, .info-list-styled .fa-ban, .info-list-styled .fa-undo { color: var(--accent-color); }
.info-list-styled li strong { color: var(--text-color); font-weight: 500; }

/* --- レスポンシブ対応 --- */
@media (max-width: 992px) {
    .br-sp { display: block; }
    .br-pc { display: none; }
    /* Mobile Nav */
    .main-nav { position: fixed; top: 0; left: -100%; width: 100%; max-width: 280px; height: 100vh; background-color: var(--dark-bg); padding-top: 70px; box-shadow: 6px 0 22px rgba(0,0,0,0.3); transition: left var(--transition-normal); z-index: 1001; overflow-y: auto; display: flex; flex-direction: column; }
    .main-nav.active { left: 0; }
    .main-nav ul { flex-direction: column; }
    .main-nav ul li { margin-left: 0; width: 100%;}
    .main-nav ul li a.nav-link { padding: 14px 25px; font-size: 1rem; display:block; border-bottom: 1px solid var(--border-color); }
    .main-nav ul li a.nav-link::after { left: 0; bottom: 0; width: 100%; transform-origin: left; transform: scaleX(0); }
    .main-nav ul li a.nav-link:hover::after, .main-nav ul li a.nav-link.active::after { transform: scaleX(1); }
    .main-nav ul li a.nav-discord-link { border: none !important; background-color: transparent !important; box-shadow: none !important; transform: none !important; color: #FFF !important; }
    .main-nav ul li a.nav-discord-link:hover { color: var(--accent-color) !important; }
    .hamburger-menu { display: block; }

    /* Page Content */
    .page-content-container { padding-top: 100px; padding-bottom: 70px;}
    .page-header { margin-bottom: 40px; }
    .page-main-title { font-size: clamp(2em, 5.5vw, 2.8em); }
    .page-section { padding: 30px 25px; }
}

@media (max-width: 480px) {
    body { font-size: 14px; line-height: 1.7; }
    .container { padding: 0 15px; }
    .page-section { padding: 25px 20px; }
}