:root { color-scheme: dark; --background: oklch(0.22 0.012 270); --wave-background: oklch(0.29 0.014 270); --foreground: oklch(0.97 0.005 270); --primary: oklch(0.93 0.006 270); --primary-foreground: oklch(0.2 0.012 270); --secondary: oklch(0.32 0.014 270); --secondary-foreground: oklch(0.96 0.005 270); --muted-foreground: oklch(0.76 0.012 270); --focus: oklch(0.88 0.01 270); }
* { box-sizing: border-box; } html { height: 100%; overflow: hidden; } body { margin: 0; height: 100%; overflow: hidden; background: var(--background); color: var(--foreground); font-family: ui-sans-serif, system-ui, sans-serif; -webkit-font-smoothing: antialiased; } button { font: inherit; } img, svg { user-select: none; -webkit-user-select: none; -webkit-user-drag: none; }
.page { height: 100vh; overflow-y: auto; overflow-x: hidden; background: var(--background); scrollbar-width: none; -ms-overflow-style: none; } .page::-webkit-scrollbar { display: none; } .site-header { position: relative; z-index: 20; background: rgba(18, 20, 27, 0.62); border-bottom: 1px solid rgba(255, 255, 255, 0.08); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); } .navbar { position: relative; display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1280px; margin: 0 auto; padding: 20px 24px; }
.about-content { min-height: calc(100vh - 81px); background: #181a20; color: var(--foreground); }
.about-inner { width: min(100%, 1080px); margin: 0 auto; padding: 112px 32px 160px; }
.about-eyebrow { margin: 0 0 22px; color: var(--muted-foreground); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.about-inner h1 { max-width: 760px; font-size: clamp(42px, 7vw, 88px); letter-spacing: -.04em; }
.about-lead { max-width: 620px; margin: 32px 0 0; color: var(--muted-foreground); font-size: clamp(20px, 2.4vw, 30px); line-height: 1.4; }
.about-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 88px; }
.about-card { padding: 28px; border: 1px solid rgba(255,255,255,.1); border-radius: 12px; background: rgba(255,255,255,.035); }
.about-card h2 { margin: 0 0 12px; font-size: 22px; }
.about-card p { margin: 0; color: var(--muted-foreground); line-height: 1.6; }
.faq-section { margin-top: 112px; }
.faq-section > h2 { width: min(100%, 820px); margin: 0 auto 28px; font-size: clamp(30px, 4vw, 52px); letter-spacing: -.03em; text-align: center; }
.faq-list { display: grid; gap: 12px; max-width: 820px; }
.faq-item { border-bottom: 1px solid rgba(255,255,255,.12); }
.faq-item summary { padding: 22px 4px; color: var(--foreground); cursor: pointer; font-size: 20px; font-weight: 600; list-style-position: outside; }
.faq-item p { max-width: 680px; margin: 0; padding: 0 4px 22px; color: var(--muted-foreground); line-height: 1.6; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--foreground); text-decoration: none; } .brand-icon, .hero-icon { display: inline-flex; line-height: 0; } .brand span:last-child { font-size: 18px; font-weight: 600; }
.nav-links { position: absolute; left: 50%; display: flex; align-items: center; gap: 36px; margin: 0; padding: 0; list-style: none; transform: translateX(-50%); } .nav-link { display: inline-block; border: 0; padding: 0; background: transparent; color: var(--muted-foreground); cursor: pointer; user-select: none; -webkit-user-select: none; font-size: 14px; font-weight: 500; text-decoration: none; transition: transform 160ms ease; } .nav-link:hover { color: var(--muted-foreground); text-decoration: none; transform: translateY(-3px); } .nav-link.is-active, .nav-link.is-active:hover { color: var(--foreground); cursor: default; text-decoration: none; transform: translateY(-5px); pointer-events: none; } .nav-link.is-active { font-weight: 600; } .nav-link.is-disabled { color: var(--muted-foreground); cursor: not-allowed; } .nav-link.is-disabled:hover { color: var(--muted-foreground); cursor: not-allowed; transform: none; }
@keyframes unavailable-feedback { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.nav-link.is-disabled.is-unavailable-feedback { animation: unavailable-feedback 260ms ease; }
.hero { position: relative; display: flex; min-height: calc(100svh - 80px); flex-direction: column; overflow: hidden; } .floaters { position: absolute; inset: 0; display: none; pointer-events: none; } .floater { position: absolute; animation: pulse 4s ease-in-out infinite; } @keyframes pulse { 50% { opacity: .58; } }
.after-wave { position: relative; height: 210px; background: var(--wave-background); }
.bottom-end-wave { position: absolute; right: 0; bottom: 0; left: 0; display: block; width: 100%; height: 220px; pointer-events: none; }
.hero-content { position: relative; z-index: 10; width: 100%; max-width: 1280px; margin: 0 auto; padding: 80px 24px 160px; } .hero-copy { max-width: 576px; } .hero-title-row { display: flex; align-items: center; gap: 20px; } h1 { margin: 0; color: var(--foreground); font-size: 60px; line-height: 1; letter-spacing: -0.025em; } .hero-description { margin-top: 40px; color: var(--muted-foreground); font-size: 24px; font-weight: 600; line-height: 1.15; } .hero-description p { margin: 0 0 4px; } .hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 40px; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 0; cursor: pointer; text-decoration: none; user-select: none; -webkit-user-select: none; transition: background-color 160ms ease, transform 160ms ease; } .button:hover { transform: translateY(-1px); } .button:disabled, .button:disabled:hover { cursor: not-allowed; opacity: .55; transform: none; } .button:focus-visible, .nav-link:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; } .button-primary { background: var(--primary); color: var(--primary-foreground); } .button-primary:hover { background: oklch(0.98 0.004 270); } .button-secondary { background: var(--secondary); color: var(--secondary-foreground); } .button-secondary:hover { background: oklch(0.38 0.016 270); } .dashboard-button { border-radius: 10px; padding: 7px 18px; font-size: 14px; font-weight: 600; } .hero-button { border-radius: 12px; padding: 20px 24px; font-size: 16px; font-weight: 700; }
.bottom-wave { position: absolute; right: 0; bottom: 0; left: 0; pointer-events: none; } .bottom-wave svg { display: block; width: 100%; height: auto; } .bottom-wave path { fill: oklch(0.29 0.014 270); }
.feature-showcase { position: relative; z-index: 2; margin-top: -24px; padding-top: 18px; padding-bottom: 0; background: var(--wave-background); color: var(--foreground); }
.feature-row { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 48px; padding: 52px 24px 32px; background: var(--wave-background); border-top: 0; }
.feature-row:last-child { padding-bottom: 64px; }
.feature-row-reverse { grid-template-columns: 0.9fr 1.1fr; }
.feature-copy { max-width: 560px; }
.feature-row-reverse .feature-copy { margin-left: auto; max-width: 540px; }
.feature-copy h2 { margin: 0 0 18px; font-size: clamp(2rem, 3vw, 3rem); letter-spacing: -.04em; line-height: 1; }
.feature-copy p { margin: 0; color: var(--muted-foreground); font-size: clamp(1.05rem, 1.7vw, 1.5rem); line-height: 1.5; }
.feature-visual { display: flex; align-items: center; justify-content: center; min-height: 320px; }
.mouse-collage, .level-scene, .multi-scene { position: relative; width: min(100%, 560px); height: 270px; }
.mouse-sticker { display: block; -webkit-user-drag: none; user-select: none; pointer-events: none; }
.mouse-sticker-large { width: 220px; height: 220px; filter: drop-shadow(0 18px 24px rgba(255, 255, 255, 0.18)); }
.mouse-sticker-small { width: 120px; height: 120px; opacity: 0.95; filter: drop-shadow(0 12px 18px rgba(255, 255, 255, 0.14)); }
.mouse-collage-music .mouse-sticker-large { position: absolute; left: 50%; top: 10%; transform: translateX(-50%); }
.mouse-collage-music .mouse-sticker-small { position: absolute; bottom: 14%; }
.mouse-collage-music .mouse-sticker-left { left: 7%; }
.mouse-collage-music .mouse-sticker-right { right: 7%; }
.multi-scene .mouse-sticker-side { position: absolute; bottom: 14%; }
.multi-scene .mouse-sticker-left { left: 7%; }
.multi-scene .mouse-sticker-right { right: 7%; }
.level-scene { display: flex; align-items: center; justify-content: center; }
.level-scene .mouse-sticker-level { position: absolute; bottom: 0; }
.level-scene .mouse-sticker-level-left { right: 7%; bottom: -10px; }
.level-scene .mouse-sticker-level-right { left: 50%; transform: translateX(-50%); }
.multi-scene { display: flex; align-items: center; justify-content: center; }
.multi-scene .mouse-sticker-center { position: absolute; left: 50%; bottom: 16%; transform: translateX(-50%); }
@media (min-width: 1024px) { .floaters { display: block; } }
@media (max-width: 768px) { .feature-row, .feature-row-reverse { grid-template-columns: 1fr; gap: 24px; padding: 44px 20px; } .feature-copy { max-width: 100%; } .feature-visual { min-height: 260px; } .mouse-collage-music .mouse-sticker-left { left: 7%; } .mouse-collage-music .mouse-sticker-right { right: 7%; } }
@media (min-width: 640px) { h1 { font-size: 72px; } .hero-description { font-size: 30px; } } @media (min-width: 1024px) { .floaters { display: block; } .hero-content { padding-top: 112px; } }
@media (max-width: 767px) { .navbar { flex-wrap: wrap; padding: 18px 20px; } .nav-links { position: static; display: flex; order: 3; width: 100%; justify-content: center; gap: 22px; margin-top: 14px; transform: none; } .dashboard-button { padding: 9px 13px; font-size: 13px; } .hero-content { padding-right: 20px; padding-left: 20px; } .hero-title-row { gap: 14px; } .hero-icon svg { width: 64px; height: 64px; } .hero-description { margin-top: 32px; } .hero-actions { margin-top: 32px; } .hero-button { padding: 17px 19px; font-size: 14px; } }
@media (max-width: 480px) { .page { height: 100svh; } .navbar { padding: 14px 12px; } .brand { gap: 8px; } .brand span:last-child { font-size: 15px; } .brand-icon svg { width: 24px; height: 24px; } .dashboard-button { padding: 8px 10px; font-size: 11px; } .hero-content { padding: 36px 16px 94px; } .hero-copy { max-width: 100%; } .hero-title-row { gap: 10px; } .hero-icon svg { width: 48px; height: 48px; } h1 { font-size: 34px; line-height: 1.1; } .hero-description { margin-top: 22px; font-size: 18px; line-height: 1.3; } .hero-description p { margin-bottom: 6px; } .hero-actions { display: flex; flex-direction: column; align-items: stretch; gap: 10px; margin-top: 24px; } .hero-button { width: 100%; padding: 15px 16px; font-size: 14px; } }