:root {
	--warm-paper: #e7dac3;
	--warm-surface: #cdb98f;
	--warm-deep: #22362d;
	--warm-ink: #17231e;
	--warm-accent: #b75f2e;
	--cool-paper: #d6efed;
	--cool-surface: #102833;
	--cool-deep: #07151c;
	--cool-ink: #e4f6f5;
	--cool-accent: #43c4c5;
	--signal: #f0d471;
	--white: #ffffff;
	--black: #091014;
	--line-light: rgba(255, 255, 255, 0.24);
	--line-dark: rgba(12, 25, 28, 0.24);
	--page-progress: 0%;
	--header-height: 86px;
	--container: 1480px;
	--side-space: clamp(24px, 4.2vw, 76px);
	--section-space: clamp(88px, 10vw, 156px);
	--transition-fast: 220ms ease;
	--transition-base: 520ms cubic-bezier(0.22, 0.74, 0.22, 1);
	--font: "Noto Sans TC", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: auto; }

body { margin: 0; overflow-x: hidden; background: var(--warm-paper); color: var(--warm-ink); font-family: var(--font); font-size: 17px; line-height: 1.8; -webkit-font-smoothing: antialiased; }
body.is-nav-open { overflow: hidden; }

img { display: block; width: 100%; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button { font: inherit; }
h1, h2, h3, p, figure { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3 { text-wrap: balance; }

p { text-wrap: pretty; }

::selection { background: var(--signal); color: var(--black); }

:focus-visible { outline: 3px solid var(--signal); outline-offset: 5px; }

.site-header { position: relative; min-height: 780px; overflow: hidden; background: var(--cool-deep); color: var(--white); }
.site-header::after { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; z-index: 5; width: 1px; background: rgba(255, 255, 255, 0.52); pointer-events: none; }
.site-header.is-scrolled .topbar { background: rgba(7, 21, 28, 0.94); border-bottom-color: rgba(255, 255, 255, 0.18); }

.topbar { position: fixed; top: 0; left: 0; z-index: 50; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; width: 100%; height: var(--header-height); padding: 0 var(--side-space); border-bottom: 1px solid rgba(255, 255, 255, 0.16); background: rgba(7, 21, 28, 0.18); backdrop-filter: blur(10px); transition: background var(--transition-fast), border-color var(--transition-fast); }

.brand-link { position: relative; z-index: 2; display: inline-flex; align-items: center; gap: 13px; justify-self: start; font-weight: 800; letter-spacing: 0.08em; }
.brand-mark { position: relative; display: grid; place-items: center; width: 34px; height: 34px; }
.brand-name { font-size: 15px; }

.connection-status { display: flex; align-items: center; gap: 10px; justify-self: center; font-size: 13px; font-weight: 600; letter-spacing: 0.15em; }

.status-node { width: 8px; height: 8px; background: var(--signal); box-shadow: 0 0 0 4px rgba(240, 212, 113, 0.16); }

.primary-nav { display: flex; align-items: center; gap: clamp(20px, 2vw, 36px); justify-self: end; }
.primary-nav a { position: relative; padding: 9px 0; color: rgba(255, 255, 255, 0.82); font-size: 14px; font-weight: 500; transition: color var(--transition-fast); }
.primary-nav a::after { content: ""; position: absolute; right: 0; bottom: 3px; left: 0; height: 1px; background: var(--signal); transform: scaleX(0); transform-origin: right center; transition: transform var(--transition-fast); }
.primary-nav a:hover { color: var(--white); }
.primary-nav a:hover::after { transform: scaleX(1); transform-origin: left center; }

.nav-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 1px solid rgba(255, 255, 255, 0.38); border-radius: 0; background: transparent; color: var(--white); cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 1px; margin: 5px auto; background: currentColor; transition: transform var(--transition-fast), opacity var(--transition-fast); }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* hero */
.hero { position: relative; display: grid; grid-template-columns: 1fr 1fr; min-height: 780px; }
.hero-world { position: relative; min-width: 0; overflow: hidden; }
.hero-world img { width: 100%; height: 100%; min-height: 780px; object-fit: cover; transition: filter 900ms ease, transform 1200ms cubic-bezier(0.22, 0.74, 0.22, 1); }
.hero-world::after { content: ""; position: absolute; inset: 0; pointer-events: none; }
.hero-world-warm::after { background: rgba(39, 53, 35, 0.28); }
.hero-world-cool::after { background: rgba(3, 18, 27, 0.55); }
.hero-world-warm img { filter: saturate(0.84) sepia(0.16); object-position: 52% center; }
.hero-world-cool img { filter: saturate(0.72) contrast(1.12) hue-rotate(8deg); object-position: 48% center; }
.hero-world:hover img { transform: scale(1.025); }
.hero-world-label { position: absolute; bottom: 34px; z-index: 3; display: flex; align-items: center; gap: 13px; font-size: 14px; font-weight: 600; letter-spacing: 0.14em; }
.hero-world-warm .hero-world-label { left: var(--side-space); }
.hero-world-cool .hero-world-label { right: var(--side-space); text-align: right; }
.hero-world-label::before { content: ""; width: 44px; height: 1px; background: currentColor; }
.hero-world-cool .hero-world-label { flex-direction: row-reverse; }
.hero-copy { position: absolute; top: 50%; left: 50%; z-index: 8; width: min(780px, 84vw); text-align: center; transform: translate(-50%, -47%); }
.hero-kicker { display: flex; align-items: center; justify-content: center; gap: 15px; margin-bottom: 20px; font-size: 14px; font-weight: 600; letter-spacing: 0.25em; }
.hero-kicker::before, .hero-kicker::after { content: ""; width: 40px; height: 1px; background: rgba(255, 255, 255, 0.68); }
.hero-copy h1 { font-size: clamp(44px, 6vw, 76px); font-weight: 900; line-height: 1.12; letter-spacing: 0.04em; text-shadow: 0 2px 24px rgba(0, 0, 0, 0.34); }
.hero-title-atg { display: block; margin-bottom: 9px; font-size: 0.34em; font-weight: 600; letter-spacing: 0.55em; transform: translateX(0.27em); }
.hero-summary { width: min(580px, 100%); margin: 25px auto 0; color: rgba(255, 255, 255, 0.88); font-size: clamp(16px, 1.5vw, 19px); line-height: 1.8; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 13px; margin-top: 32px; }

.action-link { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 24px; border: 1px solid rgba(255, 255, 255, 0.62); font-size: 15px; font-weight: 700; letter-spacing: 0.06em; transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast); }
.action-link-primary { border-color: var(--signal); background: var(--signal); color: var(--black); }
.action-link:hover { transform: translateY(-2px); }
.action-link-primary:hover { background: var(--white); border-color: var(--white); }
.action-link-secondary:hover { background: var(--white); color: var(--black); }

.hero-connection { position: absolute; top: calc(var(--header-height) + 32px); bottom: 40px; left: 50%; z-index: 7; width: 18px; transform: translateX(-50%); pointer-events: none; }
.hero-connection::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(255, 255, 255, 0.52); transform: translateX(-50%); }
.hero-connection-node { position: absolute; left: 50%; width: 15px; height: 15px; border: 2px solid var(--white); background: var(--signal); transform: translateX(-50%) rotate(45deg); }
.hero-connection-node:first-child { top: 17%; }
.hero-connection-node:nth-child(2) { top: 50%; width: 21px; height: 21px; margin-top: -10px; }
.hero-connection-node:last-child { bottom: 12%; }

/* world-progress */
.world-progress { position: fixed; top: 0; bottom: 0; left: 50%; z-index: 15; width: 1px; background: rgba(255, 255, 255, 0.08); pointer-events: none; }
.world-progress::after { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: var(--page-progress); background: var(--signal); }

main { position: relative; }
main > section { position: relative; overflow: hidden; }

/* worlds */
#worlds { display: grid; grid-template-columns: 1fr 1fr; min-height: 900px; background: linear-gradient( 90deg, var(--warm-paper) 0 50%, var(--cool-surface) 50% 100% ); }
#worlds::after { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(255, 255, 255, 0.32); pointer-events: none; }
.world-panel { display: grid; align-content: start; min-width: 0; padding: var(--section-space) var(--side-space); }
.world-panel-warm { color: var(--warm-ink); }
.world-panel-cool { color: var(--cool-ink); }
.world-heading { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 24px; align-items: start; max-width: 650px; }
.world-panel-cool .world-heading { margin-left: auto; }
.world-glyph { display: grid; place-items: center; width: 50px; height: 50px; border: 1px solid currentColor; font-size: 18px; font-weight: 800; }
.world-panel-warm .world-glyph { color: var(--warm-accent); }
.world-panel-cool .world-glyph { color: var(--cool-accent); }
.world-eyebrow { margin-bottom: 9px; font-size: 14px; font-weight: 700; letter-spacing: 0.14em; }
.world-panel-warm .world-eyebrow { color: var(--warm-accent); }
.world-panel-cool .world-eyebrow { color: var(--cool-accent); }
.world-heading h2 { max-width: 500px; font-size: clamp(30px, 3.5vw, 48px); line-height: 1.28; }
.world-figure { position: relative; margin-top: 52px; overflow: hidden; }
.world-figure img { aspect-ratio: 3/2; object-fit: cover; }
.world-panel-warm .world-figure img { filter: saturate(0.82) sepia(0.12); object-position: center 56%; }
.world-panel-cool .world-figure img { filter: saturate(0.62) contrast(1.16); object-position: center; }
.world-figure-caption { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start; padding-top: 18px; border-top: 1px solid currentColor; font-size: 14px; }
.world-figure-caption strong { font-size: 15px; letter-spacing: 0.08em; }
.world-panel-warm .world-figure-caption { border-color: var(--line-dark); }
.world-panel-cool .world-figure-caption { border-color: var(--line-light); }
.world-description { max-width: 610px; margin-top: 39px; font-size: 17px; }
.world-panel-cool .world-description { margin-left: auto; }
.world-traits { display: grid; grid-template-columns: 1fr 1fr; margin-top: 34px; border-top: 1px solid currentColor; border-bottom: 1px solid currentColor; }
.world-panel-warm .world-traits { border-color: var(--line-dark); }
.world-panel-cool .world-traits { border-color: var(--line-light); }
.world-traits li { padding: 16px 0; font-size: 14px; font-weight: 600; }
.world-traits li:nth-child(odd) { border-right: 1px solid currentColor; }
.world-panel-warm .world-traits li:nth-child(odd) { border-color: var(--line-dark); }
.world-panel-cool .world-traits li:nth-child(odd) { border-color: var(--line-light); padding-left: 18px; }
.world-traits li:nth-child(even) { padding-left: 18px; }

/* mechanics */
#mechanics { background: var(--black); color: var(--white); padding: var(--section-space) var(--side-space); z-index: 16; }
.mechanics-intro { display: grid; grid-template-columns: minmax(280px, 0.72fr) minmax(420px, 1.28fr); gap: clamp(50px, 8vw, 130px); align-items: end; max-width: var(--container); margin: 0 auto 68px; }
.section-kicker { display: flex; align-items: center; gap: 14px; margin-bottom: 13px; color: var(--signal); font-size: 14px; font-weight: 700; letter-spacing: 0.16em; }
.section-kicker::before { content: ""; width: 38px; height: 1px; background: currentColor; }
.mechanics-intro h2 { max-width: 570px; font-size: clamp(31px, 3.7vw, 52px); line-height: 1.25; }
.mechanics-intro p { max-width: 650px; color: rgba(255, 255, 255, 0.68); font-size: 18px; }
.mechanic-visual { position: relative; max-width: var(--container); margin: 0 auto 58px; overflow: hidden; border-top: 1px solid rgba(255, 255, 255, 0.24); border-bottom: 1px solid rgba(255, 255, 255, 0.24); }
.mechanic-visual img { aspect-ratio: 21/7; min-height: 280px; object-fit: cover; object-position: center 58%; filter: saturate(0.62) contrast(1.08); }
.mechanic-visual::after { content: ""; position: absolute; inset: 0; background: rgba(4, 13, 18, 0.38); pointer-events: none; }
.mechanic-visual-copy { position: absolute; right: clamp(24px, 4vw, 62px); bottom: clamp(24px, 4vw, 52px); z-index: 2; max-width: 470px; padding-left: 22px; border-left: 3px solid var(--signal); }
.mechanic-visual-copy strong { display: block; margin-bottom: 7px; font-size: clamp(19px, 2vw, 27px); }
.mechanic-visual-copy span { color: rgba(255, 255, 255, 0.76); font-size: 15px; }
.mechanic-list { max-width: var(--container); margin: 0 auto; border-top: 1px solid rgba(255, 255, 255, 0.28); }
.mechanic-item { display: grid; grid-template-columns: minmax(220px, 0.8fr) 64px minmax(320px, 1.2fr); align-items: stretch; border-bottom: 1px solid rgba(255, 255, 255, 0.28); }
.mechanic-title { display: flex; align-items: center; padding: 30px 32px 30px 0; font-size: clamp(20px, 2.1vw, 29px); line-height: 1.35; }
.mechanic-node { position: relative; display: grid; place-items: center; min-height: 126px; border-right: 1px solid rgba(255, 255, 255, 0.28); border-left: 1px solid rgba(255, 255, 255, 0.28); color: var(--signal); font-size: 18px; font-weight: 800; }
.mechanic-node::after { content: ""; width: 11px; height: 11px; border: 1px solid currentColor; transform: rotate(45deg); }
.mechanic-copy { display: flex; align-items: center; max-width: 760px; padding: 30px 0 30px 38px; color: rgba(255, 255, 255, 0.72); }

/* roles */
#roles { display: grid; grid-template-columns: 1fr 1fr; background: linear-gradient( 90deg, var(--warm-surface) 0 50%, var(--cool-paper) 50% 100% ); color: var(--black); }
.role-panel { min-height: 720px; padding: var(--section-space) var(--side-space); }
.role-panel-warm { background: var(--warm-surface); }
.role-panel-cool { background: var(--cool-paper); }
.role-panel-inner { display: flex; flex-direction: column; max-width: 650px; height: 100%; }
.role-panel-cool .role-panel-inner { margin-left: auto; }
.role-side-label { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 14px; border-bottom: 1px solid rgba(9, 16, 20, 0.32); font-size: 13px; font-weight: 700; letter-spacing: 0.16em; }
.role-symbol { display: grid; place-items: center; width: 84px; height: 84px; margin: clamp(52px, 7vw, 92px) 0 26px; border: 1px solid currentColor; font-size: 32px; font-weight: 800; }
.role-panel-warm .role-symbol { color: var(--warm-deep); transform: rotate(-6deg); }
.role-panel-cool .role-symbol { color: #176b73; transform: rotate(6deg); }
.role-panel h2 { max-width: 560px; font-size: clamp(31px, 3.6vw, 50px); line-height: 1.26; }
.role-panel p { max-width: 580px; margin-top: 23px; }
.role-ability-list { margin-top: auto; padding-top: 50px; }
.role-ability-list li { display: grid; grid-template-columns: minmax(120px, 0.55fr) 1fr; gap: 24px; padding: 17px 0; border-top: 1px solid rgba(9, 16, 20, 0.22); }
.role-ability-list strong { font-size: 15px; }
.role-ability-list span { color: rgba(9, 16, 20, 0.68); font-size: 15px; }
.role-shared { position: absolute; top: 50%; left: 50%; z-index: 5; display: grid; place-items: center; width: 132px; height: 132px; padding: 0; border: 10px solid rgba(255, 255, 255, 0.74); background: var(--signal); color: var(--black); text-align: center; transform: translate(-50%, -50%) rotate(45deg); }
.role-shared span { font-size: 15px; font-weight: 800; line-height: 1.45; transform: rotate(-45deg); }

/* levels */
#levels { background: #ece8df; color: var(--black); padding: var(--section-space) 0; }
.levels-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: end; max-width: var(--container); margin: 0 auto 62px; padding: 0 var(--side-space); }
.levels-heading h2 { max-width: 600px; font-size: clamp(31px, 3.8vw, 52px); line-height: 1.23; }
.levels-heading p { max-width: 620px; color: rgba(9, 16, 20, 0.68); }
.level-list { position: relative; border-top: 1px solid rgba(9, 16, 20, 0.24); z-index: 16; }
.level-item { display: grid; grid-template-columns: minmax(220px, 0.33fr) minmax(0, 0.67fr); min-height: 370px; border-bottom: 1px solid rgba(9, 16, 20, 0.24); }
.level-copy { display: flex; flex-direction: column; justify-content: space-between; padding: 38px var(--side-space); }
.level-type { display: flex; align-items: center; gap: 12px; color: #49776d; font-size: 13px; font-weight: 800; letter-spacing: 0.14em; }
.level-type::before { content: ""; width: 34px; height: 1px; background: currentColor; }
.level-copy h3 { max-width: 420px; margin: 28px 0 18px; font-size: clamp(23px, 2.6vw, 36px); line-height: 1.35; }
.level-copy p { max-width: 440px; color: rgba(9, 16, 20, 0.68); }
.level-focus { display: flex; align-items: center; gap: 10px; margin-top: 36px; font-size: 14px; font-weight: 700; }
.level-focus::before { content: ""; width: 10px; height: 10px; background: var(--warm-accent); transform: rotate(45deg); }
.level-images { display: grid; grid-template-columns: 1fr 1fr; min-width: 0; }
.level-image { position: relative; min-width: 0; overflow: hidden; }
.level-image img { width: 100%; height: 100%; min-height: 370px; object-fit: cover; transition: filter 700ms ease, transform 900ms cubic-bezier(0.22, 0.74, 0.22, 1); }
.level-image-warm img { filter: saturate(0.76) sepia(0.1); }
.level-image-cool img { filter: saturate(0.58) contrast(1.18) hue-rotate(10deg); }
.level-image:hover img { transform: scale(1.025); filter: saturate(0.92) contrast(1.05); }
.level-image-label { position: absolute; right: 18px; bottom: 18px; left: 18px; padding-top: 11px; border-top: 1px solid rgba(255, 255, 255, 0.62); color: var(--white); font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6); }

/* play */
#play { background: var(--cool-deep); color: var(--cool-ink); padding: var(--section-space) var(--side-space); z-index: 16; }
.play-layout { display: grid; grid-template-columns: minmax(280px, 0.55fr) minmax(520px, 1.45fr); gap: clamp(60px, 9vw, 150px); max-width: var(--container); margin: 0 auto; }
.play-heading { position: sticky; top: calc(var(--header-height) + 42px); align-self: start; }
.play-heading h2 { max-width: 470px; font-size: clamp(31px, 3.7vw, 50px); line-height: 1.27; }
.play-heading p { max-width: 470px; margin-top: 22px; color: rgba(228, 246, 245, 0.7); }
.play-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
.play-actions .action-link { border-color: rgba(228, 246, 245, 0.45); }
.play-actions .action-link-primary { border-color: var(--cool-accent); background: var(--cool-accent); }
.play-sequence { border-top: 1px solid var(--line-light); }
.play-step { display: grid; grid-template-columns: 120px 1fr; gap: 36px; padding: 38px 0; border-bottom: 1px solid var(--line-light); }
.play-step-label { color: var(--cool-accent); font-size: 14px; font-weight: 800; letter-spacing: 0.13em; }
.play-step h3 { margin-bottom: 12px; font-size: clamp(21px, 2.1vw, 29px); }
.play-step p { max-width: 650px; color: rgba(228, 246, 245, 0.69); }
.play-requirement { display: grid; grid-template-columns: 1fr 1fr; margin-top: 46px; border: 1px solid var(--line-light); }
.play-requirement-item { padding: 25px 28px; }
.play-requirement-item + .play-requirement-item { border-left: 1px solid var(--line-light); }
.play-requirement-item strong { display: block; margin-bottom: 5px; color: var(--signal); font-size: 14px; letter-spacing: 0.1em; }
.play-requirement-item span { font-size: 15px; }

/* community */
#community { display: grid; grid-template-columns: 1.05fr 0.95fr; min-height: 680px; background: var(--warm-deep); color: var(--white); z-index: 16; }
.community-media { position: relative; min-height: 680px; overflow: hidden; }
.community-media img { width: 100%; height: 100%; min-height: 680px; object-fit: cover; object-position: center; filter: saturate(0.66) sepia(0.08); }
.community-media::after { content: ""; position: absolute; inset: 0; background: rgba(25, 47, 37, 0.35); }
.community-panel { display: flex; flex-direction: column; justify-content: center; padding: var(--section-space) var(--side-space); }
.community-panel h2 { max-width: 600px; font-size: clamp(32px, 4vw, 56px); line-height: 1.25; }
.community-panel > p { max-width: 600px; margin-top: 25px; color: rgba(255, 255, 255, 0.74); }
.community-prompt { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; max-width: 580px; margin-top: 48px; padding: 24px 0; border-top: 1px solid rgba(255, 255, 255, 0.25); border-bottom: 1px solid rgba(255, 255, 255, 0.25); }
.community-prompt-mark { color: var(--signal); font-size: 33px; font-weight: 900; line-height: 1; }
.community-prompt p { font-size: 18px; font-weight: 600; }
.community-links { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 35px; }
.community-links a { display: inline-flex; align-items: center; min-height: 46px; padding: 0 18px; border: 1px solid rgba(255, 255, 255, 0.42); font-size: 14px; font-weight: 700; transition: background var(--transition-fast), color var(--transition-fast); }
.community-links a:hover { background: var(--white); color: var(--warm-deep); }

/* footer */
footer { position: relative; overflow: hidden; background: #050b0e; color: var(--white); }
footer::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(255, 255, 255, 0.14); }
.footer-main { display: grid; grid-template-columns: 1fr 1fr; min-height: 420px; }
.footer-side { display: flex; flex-direction: column; justify-content: space-between; min-width: 0; padding: 72px var(--side-space) 42px; }
.footer-side:first-child { background: rgba(183, 95, 46, 0.1); }
.footer-side:last-child { background: rgba(67, 196, 197, 0.08); }
.footer-brand { font-size: clamp(48px, 7.4vw, 60px); font-weight: 900; line-height: 0.95; letter-spacing: -0.035em; }
.footer-brand span { display: block; margin-top: 16px; font-size: 0.18em; font-weight: 500; letter-spacing: 0.32em; }
.footer-note { max-width: 480px; margin-top: 38px; color: rgba(255, 255, 255, 0.62); }
.footer-nav { display: grid; align-content: start; gap: 0; border-top: 1px solid rgba(255, 255, 255, 0.22); }
.footer-nav a { display: flex; align-items: center; justify-content: space-between; min-height: 61px; border-bottom: 1px solid rgba(255, 255, 255, 0.22); color: rgba(255, 255, 255, 0.76); font-size: 15px; transition: color var(--transition-fast), padding var(--transition-fast); }
.footer-nav a::after { content: "↗"; color: var(--signal); }
.footer-nav a:hover { padding-left: 10px; color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding: 20px var(--side-space); border-top: 1px solid rgba(255, 255, 255, 0.15); color: rgba(255, 255, 255, 0.44); font-size: 13px; }

[data-reveal] { opacity: 0.28; transition: clip-path 850ms cubic-bezier(0.22, 0.74, 0.22, 1), opacity 700ms ease, filter 850ms ease; }
[data-reveal="warm"] { clip-path: inset(0 100% 0 0); }
[data-reveal="cool"] { clip-path: inset(0 0 0 100%); }
[data-reveal="tone"] { filter: grayscale(1); }
[data-reveal].is-visible { opacity: 1; clip-path: inset(0 0 0 0); filter: grayscale(0); }

@media (max-width: 1440px) {
	.role-shared { width: 110px; height: 110px; border-width: 8px; top: 65%; }
}
@media (max-width: 1280px) {
	:root { --side-space: clamp(24px, 3.2vw, 46px); --section-space: clamp(82px, 8vw, 118px); }
	.primary-nav { gap: 20px; }
	.primary-nav a { font-size: 13px; }
	.hero-copy { width: min(680px, 82vw); }
	.world-heading { grid-template-columns: 1fr; gap: 18px; }
	.world-glyph { width: 44px; height: 44px; }
	.world-traits { grid-template-columns: 1fr; }
	.world-traits li:nth-child(odd) { border-right: 0; }
	.world-panel-cool .world-traits li:nth-child(odd), .world-traits li:nth-child(even) { padding-left: 0; }
	.world-traits li + li { border-top: 1px solid currentColor; }
	.mechanics-intro { gap: 60px; }
	.role-panel { min-height: 760px; }
	.role-shared { width: 90px; height: 90px; }
	.level-item { grid-template-columns: minmax(280px, 0.38fr) minmax(0, 0.62fr); }
	.play-layout { gap: 72px; }
	.footer-brand { font-size: clamp(48px, 7vw, 84px); }
}
@media (max-width: 960px) {
	:root { --header-height: 76px; }
	.topbar { grid-template-columns: 1fr auto; }
	.connection-status { display: none; }
	.nav-toggle { display: block; justify-self: end; }
	.primary-nav { position: fixed; top: var(--header-height); right: 0; bottom: 0; left: 0; width: min(100%, 250px); min-height: 100vh; display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0; padding: 32px var(--side-space); background: var(--cool-deep); opacity: 0; visibility: hidden; transform: translateX(100%); transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base); }
	.primary-nav.is-active { opacity: 1; visibility: visible; transform: translateX(0); }
	.primary-nav a { display: flex; align-items: center; min-height: 64px; border-bottom: 1px solid rgba(255, 255, 255, 0.18); font-size: 18px; }
	.primary-nav a::after { display: none; }
	.hero-copy { width: min(650px, 88vw); }
	#worlds { min-height: 820px; }
	.world-panel { padding-right: 30px; padding-left: 30px; }
	.world-heading h2 { font-size: clamp(28px, 4vw, 40px); }
	.mechanics-intro { grid-template-columns: 1fr; gap: 24px; }
	.mechanic-visual img { aspect-ratio: 16/7; }
	.mechanic-item { grid-template-columns: minmax(190px, 0.8fr) 54px minmax(280px, 1.2fr); }
	.mechanic-title { padding-right: 22px; }
	.mechanic-copy { padding-left: 26px; }
	.role-panel { min-height: 720px; padding-right: 32px; padding-left: 32px; }
	.role-shared { width: 92px; height: 92px; border-width: 7px; }
	.role-shared span { font-size: 13px; }
	.role-ability-list li { grid-template-columns: 1fr; gap: 3px; }
	.levels-heading { grid-template-columns: 1fr; gap: 22px; }
	.level-item { grid-template-columns: 1fr; }
	.level-copy { padding-top: 44px; padding-bottom: 44px; }
	.level-images { min-height: 400px; }
	.play-layout { grid-template-columns: 1fr; gap: 54px; }
	.play-heading { position: static; }
	#community { grid-template-columns: 1fr; }
	.community-media { min-height: 460px; }
	.community-media img { min-height: 460px; }
	.community-panel { min-height: 560px; }
}
@media (max-width: 768px) {
	body { font-size: 16px; }
	.site-header { min-height: 880px; }
	.site-header::after { top: 50%; right: 0; bottom: auto; left: 0; width: auto; height: 1px; }
	.hero { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; min-height: 880px; }
	.hero-world img { min-height: 440px; }
	.hero-world-warm img { object-position: center 58%; }
	.hero-world-label { bottom: 20px; }
	.hero-world-warm .hero-world-label { left: 22px; }
	.hero-world-cool .hero-world-label { right: 22px; }
	.hero-copy { top: 50%; width: min(600px, 90vw); padding: 31px 18px; background: rgba(7, 21, 28, 0.7); transform: translate(-50%, -50%); }
	.hero-copy h1 { font-size: clamp(36px, 9vw, 50px); }
	.hero-title-atg { font-size: 0.3em; }
	.hero-summary { margin-top: 18px; font-size: 15px; }
	.hero-actions { margin-top: 23px; }
	.hero-connection { top: var(--header-height); right: 22px; bottom: 18px; left: auto; transform: none; }
	.hero-connection-node { left: 50%; }
	.world-progress { display: none; }
	#worlds { grid-template-columns: 1fr; background: var(--warm-paper); }
	#worlds::after { display: none; }
	.world-panel { min-height: auto; padding: 82px var(--side-space); }
	.world-panel-cool { background: var(--cool-surface); }
	.world-panel-cool .world-heading, .world-panel-cool .world-description { margin-left: 0; }
	.world-heading { grid-template-columns: auto minmax(0, 1fr); }
	.world-traits { grid-template-columns: 1fr 1fr; }
	.world-traits li:nth-child(odd) { border-right: 1px solid currentColor; }
	.world-panel-cool .world-traits li:nth-child(odd), .world-traits li:nth-child(even) { padding-left: 14px; }
	.world-panel-warm .world-traits li:nth-child(odd) { padding-left: 0; }
	.world-traits li + li { border-top: 0; }
	.mechanic-visual img { min-height: 330px; aspect-ratio: 4/3; }
	.mechanic-visual-copy { right: 24px; bottom: 24px; left: 24px; }
	.mechanic-item { grid-template-columns: 48px 1fr; }
	.mechanic-node { grid-row: 1 / 3; grid-column: 1; min-height: 100%; border-right: 1px solid rgba(255, 255, 255, 0.28); border-left: 0; }
	.mechanic-title { grid-column: 2; padding: 27px 0 9px 24px; }
	.mechanic-copy { grid-column: 2; padding: 0 0 27px 24px; }
	#roles { grid-template-columns: 1fr; }
	.role-panel { min-height: auto; padding-top: 88px; padding-bottom: 110px; }
	.role-panel-cool .role-panel-inner { margin-left: 0; }
	.role-ability-list { margin-top: 50px; padding-top: 0; }
	.role-shared { top: 50%; left: auto; right: var(--side-space); width: 82px; height: 82px; border-width: 6px; transform: translateY(-50%) rotate(45deg); }
	.role-shared span { font-size: 12px; }
	.levels-heading { padding-right: var(--side-space); padding-left: var(--side-space); }
	.level-copy { padding-right: var(--side-space); padding-left: var(--side-space); }
	.level-images { min-height: 360px; }
	.play-step { grid-template-columns: 1fr; gap: 8px; }
	.play-requirement { grid-template-columns: 1fr; }
	.play-requirement-item + .play-requirement-item { border-top: 1px solid var(--line-light); border-left: 0; }
	.community-media { min-height: 400px; }
	.community-media img { min-height: 400px; object-position: center 42%; }
	footer::before { display: none; }
	.footer-main { grid-template-columns: 1fr; }
	.footer-side { min-height: 340px; }
	.footer-side + .footer-side { border-top: 1px solid rgba(255, 255, 255, 0.15); }
}
@media (max-width: 500px) {
	:root { --side-space: 20px; --section-space: 74px; --header-height: 68px; }
	.topbar { padding-right: 16px; padding-left: 16px; }
	.brand-name { font-size: 14px; letter-spacing: 0.03em; }
	.brand-mark { width: 31px; height: 31px; }
	.site-header, .hero { min-height: 820px; }
	.hero { grid-template-rows: 410px 410px; }
	.hero-world img { min-height: 410px; }
	.hero-copy { width: calc(100% - 32px); padding: 25px 15px; }
	.hero-copy h1 { font-size: clamp(32px, 10vw, 40px); }
	.hero-kicker { gap: 9px; margin-bottom: 13px; font-size: 11px; letter-spacing: 0.18em; }
	.hero-kicker::before, .hero-kicker::after { width: 22px; }
	.hero-summary { line-height: 1.7; }
	.hero-actions { flex-direction: column; align-items: stretch; gap: 9px; }
	.action-link { width: 100%; min-height: 48px; }
	.hero-world-label { max-width: 180px; font-size: 11px; letter-spacing: 0.08em; }
	.hero-world-label::before { width: 22px; }
	.world-heading { grid-template-columns: 1fr; }
	.world-heading h2 { font-size: 32px; }
	.world-figure { margin-top: 34px; }
	.world-figure img { aspect-ratio: 4/3; }
	.world-figure-caption { grid-template-columns: 1fr; gap: 4px; }
	.world-traits { grid-template-columns: 1fr; }
	.world-traits li:nth-child(odd) { border-right: 0; }
	.world-panel-cool .world-traits li:nth-child(odd), .world-traits li:nth-child(even) { padding-left: 0; }
	.world-traits li + li { border-top: 1px solid currentColor; }
	.mechanics-intro { margin-bottom: 42px; }
	.mechanics-intro h2 { font-size: 32px; }
	.mechanics-intro p { font-size: 16px; }
	.mechanic-visual { margin-bottom: 36px; }
	.mechanic-visual img { min-height: 360px; }
	.mechanic-visual-copy { right: 18px; bottom: 18px; left: 18px; padding-left: 16px; }
	.mechanic-item { grid-template-columns: 38px 1fr; }
	.mechanic-title { padding-left: 18px; font-size: 21px; }
	.mechanic-copy { padding-left: 18px; font-size: 15px; }
	.role-panel { padding-top: 76px; padding-bottom: 94px; }
	.role-symbol { width: 66px; height: 66px; margin-top: 42px; font-size: 26px; }
	.role-panel h2 { font-size: 31px; }
	.role-shared { right: 18px; width: 72px; height: 72px; }
	.role-shared span { font-size: 10px; }
	.level-images { grid-template-columns: 1fr; min-height: 0; }
	.level-image img { min-height: 270px; }
	.level-image-label { font-size: 11px; }
	.play-heading h2 { font-size: 32px; }
	.play-actions { flex-direction: column; }
	.play-step { padding: 31px 0; }
	.community-media, .community-media img { min-height: 330px; }
	.community-panel { min-height: auto; padding-top: 76px; padding-bottom: 82px; }
	.community-panel h2 { font-size: 34px; }
	.community-prompt { grid-template-columns: 1fr; gap: 8px; }
	.community-links { display: grid; grid-template-columns: 1fr; }
	.community-links a { justify-content: center; }
	.footer-side { min-height: 310px; padding-top: 58px; }
	.footer-brand { font-size: 48px; }
	.footer-bottom { flex-direction: column; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { scroll-behavior: auto; transition-duration: 0.01ms; animation-duration: 0.01ms; animation-iteration-count: 1; }
	[data-reveal] { opacity: 1; clip-path: none; filter: none; }
	.hero-world:hover img, .level-image:hover img, .action-link:hover { transform: none; }
}