:root{--landing-bg:247 247 246;--landing-surface:255 255 255;--landing-surface-alt:239 240 241;--landing-border:215 218 221;--landing-accent:51 65 85;--landing-accent-hover:30 41 59;--landing-glow:71 85 105;--landing-gradient-start:51 65 85;--landing-gradient-end:100 116 139;--landing-text-heading:23 23 23;--landing-text-body:82 82 82;--landing-text-muted:128 128 128;--landing-text-accent:51 65 85;--landing-section-gap:140px;--landing-section-gap-mobile:100px;--landing-container-padding:80px;--landing-container-padding-tablet:48px;--landing-container-padding-mobile:24px;--koisei-scroll-progress:0}.grain-overlay{position:fixed;inset:0;pointer-events:none;z-index:50;opacity:.015;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E")}.gradient-orb{position:absolute;border-radius:50%;filter:blur(120px);opacity:.08;animation:float 8s ease-in-out infinite;will-change:transform;contain:layout style}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.gradient-orb-blue{background:radial-gradient(circle,rgb(var(--landing-gradient-start)) 0,transparent 70%)}.gradient-orb-purple{background:radial-gradient(circle,rgb(var(--landing-gradient-end)) 0,transparent 70%)}.scroll-animate{opacity:0;transform:translateY(30px);transition:opacity .8s ease-out,transform .8s ease-out;will-change:opacity,transform}.scroll-animate.in-view{opacity:1;transform:translateY(0);will-change:auto}.monitor-screen{border-radius:8px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.08),0 10px 20px rgba(0,0,0,.04),0 0 0 1px rgba(0,0,0,.04)}.monitor-reflection{transform:scaleY(-1);mask-image:linear-gradient(180deg,rgba(0,0,0,.06),transparent 50%);-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.06),transparent 50%);pointer-events:none}@keyframes glitch{0%{clip-path:inset(40% 0 61% 0);transform:translate(-2px,2px)}20%{clip-path:inset(92% 0 1% 0);transform:translate(1px,-3px)}40%{clip-path:inset(43% 0 1% 0);transform:translate(-1px,3px)}60%{clip-path:inset(25% 0 58% 0);transform:translate(3px,1px)}80%{clip-path:inset(54% 0 7% 0);transform:translate(-3px,-2px)}to{clip-path:inset(58% 0 43% 0);transform:translate(2px,-1px)}}.glitch-overlay{animation:glitch .5s steps(2) forwards}.landing-section{padding:var(--landing-section-gap) var(--landing-container-padding);contain:layout style paint}@media (max-width:1024px){.landing-section{padding-left:var(--landing-container-padding-tablet);padding-right:var(--landing-container-padding-tablet)}}@media (max-width:768px){.landing-section{padding:var(--landing-section-gap-mobile) var(--landing-container-padding-mobile)}}.luxury-divider{width:60px;height:2px;background:linear-gradient(90deg,transparent,rgb(var(--landing-accent)),transparent);margin:1.5rem auto}.luxury-card{transition:all .5s ease;border:1px solid rgb(var(--landing-border))}.luxury-card:hover{border-color:rgb(var(--landing-accent)/.3);box-shadow:0 20px 40px rgba(0,0,0,.04)}.theme-tweak-bar{position:sticky;top:80px;z-index:44;border-block:1px solid rgb(var(--landing-border)/.72);background:rgb(var(--landing-bg)/.92);color:rgb(var(--landing-text-heading));backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.theme-tweak-inner{display:flex;align-items:center;gap:12px;width:min(1280px,100%);min-height:58px;margin:0 auto;padding:9px 24px}.theme-tweak-title{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgb(var(--landing-text-heading))}.theme-tweak-options{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}.theme-tweak-options::-webkit-scrollbar{display:none}.theme-reset,.theme-tweak-option{min-height:40px;border:1px solid rgb(var(--landing-border));background:rgb(var(--landing-surface)/.72);color:rgb(var(--landing-text-body));transition:border-color .25s ease,background .25s ease,color .25s ease,transform .25s ease}.theme-tweak-option{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:6px 10px}.theme-reset:hover,.theme-tweak-option:hover{border-color:rgb(var(--landing-accent)/.42);color:rgb(var(--landing-text-heading));transform:translateY(-1px)}.theme-tweak-option[data-active=true]{border-color:rgb(var(--landing-accent)/.62);background:rgb(var(--landing-accent)/.08);color:rgb(var(--landing-text-heading))}.theme-swatch-group{display:grid;grid-template-columns:repeat(2,12px);gap:2px;padding:2px;border:1px solid rgb(var(--landing-border)/.7);background:rgb(var(--landing-bg)/.84)}.theme-swatch{width:12px;height:12px}.theme-copy{display:grid;gap:1px;text-align:left;white-space:nowrap}.theme-name{font-size:12px;font-weight:700;line-height:1.2}.theme-note{font-size:10px;line-height:1.2;color:rgb(var(--landing-text-muted))}.theme-check{opacity:0;color:rgb(var(--landing-accent))}.theme-tweak-option[data-active=true] .theme-check{opacity:1}.theme-reset{display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:0 0 auto;padding:0 12px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.koisei-page{scroll-behavior:smooth}.koisei-page::-moz-selection{background:rgb(var(--landing-accent)/.22);color:rgb(var(--landing-text-heading))}.koisei-page::selection{background:rgb(var(--landing-accent)/.22);color:rgb(var(--landing-text-heading))}.koisei-cursor-dot,.koisei-cursor-ring{position:fixed;top:0;left:0;z-index:80;pointer-events:none;opacity:0;will-change:transform,opacity}.koisei-cursor-dot{width:8px;height:8px;border-radius:999px;background:rgb(var(--landing-accent));box-shadow:0 0 18px rgb(var(--landing-accent)/.35)}.koisei-cursor-ring{width:36px;height:36px;border:1px solid rgb(var(--landing-accent)/.45);border-radius:999px;background:rgb(var(--landing-accent)/.05);transition:width .3s ease,height .3s ease,border-color .3s ease,background .3s ease,opacity .3s ease}.koisei-cursor-ring[data-active=true]{border-color:rgba(45,56,62,.45);background:hsla(0,0%,100%,.28);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}.koisei-scroll-rail{position:fixed;left:24px;top:50%;z-index:45;display:flex;flex-direction:column;align-items:center;gap:14px;width:18px;pointer-events:none;color:rgb(var(--landing-text-heading)/.48);transform:translateY(-50%)}.koisei-scroll-index{writing-mode:vertical-rl;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:11px;line-height:1;letter-spacing:.12em}.koisei-scroll-track{position:relative;width:1px;height:168px;overflow:hidden;background:rgb(var(--landing-text-heading)/.13)}.koisei-scroll-fill{position:absolute;inset:0;transform-origin:top;background:linear-gradient(180deg,rgb(var(--landing-accent)),rgb(var(--landing-accent)/.12))}.koisei-reveal-item{opacity:0;filter:blur(10px);transform:translateY(calc(22px + var(--koisei-drift, 0px))) rotate(.001deg);transition:opacity .9s cubic-bezier(.22,1,.36,1) var(--koisei-reveal-delay,0ms),filter .9s cubic-bezier(.22,1,.36,1) var(--koisei-reveal-delay,0ms),transform .9s cubic-bezier(.22,1,.36,1) var(--koisei-reveal-delay,0ms);will-change:opacity,filter,transform}.koisei-reveal-item.koisei-in-view{opacity:1;filter:blur(0);transform:translateY(var(--koisei-drift,0)) rotate(0deg);will-change:auto}.koisei-page h1.koisei-reveal-item,.koisei-page h2.koisei-reveal-item{clip-path:inset(0 0 0 0)}.koisei-page h1.koisei-reveal-item:after,.koisei-page h2.koisei-reveal-item:after{content:"";display:block;height:1px;width:min(220px,46%);margin-top:18px;transform:scaleX(0);transform-origin:left;background:linear-gradient(90deg,rgb(var(--landing-accent)/.75),rgb(var(--landing-accent)/0));transition:transform 1s cubic-bezier(.22,1,.36,1) calc(var(--koisei-reveal-delay, 0ms) + .16s)}.koisei-page h1.koisei-in-view:after,.koisei-page h2.koisei-in-view:after{transform:scaleX(1)}.koisei-page [data-koisei-section]{position:relative}.koisei-page [data-koisei-section]:before{content:attr(data-koisei-label);position:absolute;right:24px;top:96px;z-index:1;writing-mode:vertical-rl;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:rgb(var(--landing-text-heading)/.22);pointer-events:none}.koisei-page [data-koisei-section] .luxury-card,.koisei-page [data-koisei-section] figure,.koisei-page [data-koisei-section] video{--koisei-drift:calc((var(--koisei-local-progress, 0.5) - 0.5) * -12px)}.koisei-page [data-koisei-section] video{transition:filter .6s ease,box-shadow .6s ease}.koisei-page [data-koisei-section] video:hover{filter:saturate(1.08) contrast(1.03)}.koisei-page .luxury-divider{position:relative;overflow:hidden}.koisei-page .luxury-divider:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,hsla(0,0%,100%,.85),transparent);animation:koisei-shimmer 2.4s linear infinite}@keyframes koisei-scroll-dot{0%{transform:translateY(0);opacity:0}16%,84%{opacity:1}to{transform:translateY(34px);opacity:0}}@keyframes koisei-shimmer{0%{transform:translateX(-110%)}to{transform:translateX(110%)}}.koisei-page [data-koisei-hero] section:after{content:"";position:absolute;left:50%;bottom:24px;width:1px;height:46px;background:rgb(var(--landing-text-heading)/.12);transform:translateX(-50%)}.koisei-page [data-koisei-hero] section:before{content:"";position:absolute;left:50%;bottom:62px;z-index:2;width:4px;height:4px;border-radius:999px;background:rgb(var(--landing-accent));transform:translateX(-50%);animation:koisei-scroll-dot 1.8s ease-in-out infinite}@media (pointer:fine){.koisei-cursor-dot,.koisei-cursor-ring{opacity:1}}@media (max-width:1024px){.theme-tweak-inner{padding-inline:18px}.koisei-page [data-koisei-section]:before,.koisei-scroll-rail{display:none}}@media (max-width:768px){.theme-tweak-bar{top:80px}.theme-tweak-inner{align-items:flex-start;gap:8px;padding:8px 16px}.theme-tweak-title{min-height:40px}.theme-tweak-option{gap:8px;padding-inline:8px}.theme-note{display:none}.theme-reset{min-width:40px;padding-inline:10px;font-size:0}.koisei-reveal-item{transform:translateY(16px)}.koisei-page [data-koisei-section] .luxury-card,.koisei-page [data-koisei-section] figure,.koisei-page [data-koisei-section] video{--koisei-drift:0px}}@media (prefers-reduced-motion:reduce){.koisei-page,.koisei-page *{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}.koisei-cursor-dot,.koisei-cursor-ring,.koisei-scroll-rail{display:none}.koisei-reveal-item{opacity:1;filter:none;transform:none}}