:root{
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  --bg:          #0a0a14;
  --bg-2:        #0e0e1b;
  --surface:     #131324;
  --surface-2:   #1a1a30;
  --surface-3:   #232342;
  --text:        #f6f5ff;
  --text-muted:  #a3a2c4;
  --text-faint:  #6d6c92;
  --accent:      #7c6cff;
  --accent-2:    #ff5c8a;
  --accent-3:    #3ee0c0;
  --on-accent:   #ffffff;
  --code-bg:     #0c0c18;

  --grad-accent: linear-gradient(115deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-cool:   linear-gradient(115deg, var(--accent) 0%, var(--accent-3) 100%);

  --border-color: #26264a;
  --border-color-strong: #3a3a6b;
  --border-w: 1px;
  --border: var(--border-w) solid var(--border-color);
  --border-strong: var(--border-w) solid var(--border-color-strong);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 34px;
  --radius-pill: 999px;

  --shadow-md: 0 18px 50px -20px rgba(0,0,0,.65);
  --shadow-lg: 0 40px 90px -30px rgba(0,0,0,.8);
  --blob-opacity: .28;
  --blob-blur: 90px;
  --glass-blur: 18px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --dur-fast: .2s;
  --dur-med: .45s;
  --dur-slow: .9s;
  --dur-theme: .5s;
  --reveal-base-delay: .28s;
  --reveal-step: .08s;
  --word-step: .045s;
  --marquee-speed: 46s;

  --scroll-lerp: .085;
  --scroll-lock: 950;

  --parallax-mouse: 1;

  --pad-x: clamp(20px, 5vw, 72px);
  --nav-h: 76px;
  --hud-h: 76px;
  --content-max: 1180px;
  --gap: clamp(12px, 1.6vw, 20px);

  --fs-hero: clamp(2.5rem, 7.2vw, 6.4rem);
  --fs-h2: clamp(2rem, 4.6vw, 3.9rem);
  --fs-h3: clamp(1.05rem, 1.4vw, 1.3rem);
  --fs-lead: clamp(1rem, 1.5vw, 1.25rem);
  --fs-body: clamp(.9rem, 1.05vw, 1rem);
  --tracking-tight: -.038em;
}

:root[data-theme="light"]{
  --bg:          #f4f3fb;
  --bg-2:        #ecebf7;
  --surface:     #ffffff;
  --surface-2:   #f0eefb;
  --surface-3:   #e3e0f6;
  --text:        #14132b;
  --text-muted:  #55547a;
  --text-faint:  #8d8bb0;
  --accent:      #5b47f5;
  --accent-2:    #e8306b;
  --accent-3:    #0aa58a;
  --code-bg:     #fbfaff;
  --border-color: #dedaf3;
  --border-color-strong: #c4bfe8;
  --shadow-md: 0 18px 44px -22px rgba(60,40,150,.28);
  --shadow-lg: 0 40px 80px -34px rgba(60,40,150,.38);
  --blob-opacity: .22;
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;margin:0;overflow:hidden;background:var(--bg);user-select: none}
body{
  font-family:var(--font-sans);font-size:var(--fs-body);line-height:1.55;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  transition:background var(--dur-theme) var(--ease), color var(--dur-theme) var(--ease);
}
h1,h2,h3,p{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--radius-xs)}
::selection{background:var(--accent);color:var(--on-accent)}
.icon{width:1.25em;height:1.25em;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.grad{background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.grad-cool{background:var(--grad-cool);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}

.nav{
  position:fixed;left:0;right:0;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:calc(16px + env(safe-area-inset-top,0px)) var(--pad-x) 12px;
  pointer-events:none;
}
.nav > *{pointer-events:auto}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.12rem;letter-spacing:-.02em}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--surface-2);border:var(--border);display:grid;place-items:center;transition:transform var(--dur-med) var(--ease)}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.06)}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:url(#gradStroke);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.menu{
  display:flex;gap:2px;padding:5px;border-radius:var(--radius-pill);
  background:color-mix(in srgb, var(--surface) 72%, transparent);
  border:var(--border);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
}
.menu button{padding:8px 15px;border-radius:var(--radius-pill);font-size:.86rem;font-weight:500;color:var(--text-muted);transition:color var(--dur-fast), background var(--dur-med) var(--ease)}
.menu button:hover{color:var(--text)}
.menu button.on{background:var(--surface-3);color:var(--text)}
.nav-right{display:flex;gap:10px;align-items:center}
.icon-btn{
  width:42px;height:42px;border-radius:var(--radius-pill);display:grid;place-items:center;
  background:color-mix(in srgb, var(--surface) 72%, transparent);border:var(--border);
  backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));
  transition:transform var(--dur-med) var(--ease), border-color var(--dur-fast), background var(--dur-fast);
}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--accent)}
.icon-btn .icon.i-sun {margin-left:1px;width:19px;height:19px}
.icon-btn .icon.i-moon {margin-top:3px;width:23px;height:24px}
#themeBtn .i-sun{display:none}
:root[data-theme="light"] #themeBtn .i-sun{display:block}
:root[data-theme="light"] #themeBtn .i-moon{display:none}

.progress{position:fixed;left:0;top:0;height:3px;width:100%;background:var(--grad-accent);transform-origin:left;transform:scaleX(0);z-index:60}

.dots{position:fixed;right:clamp(10px,1.8vw,26px);top:50%;transform:translateY(-50%);z-index:50;display:flex;flex-direction:column;gap:12px}
.dot{position:relative;width:9px;height:9px;border-radius:var(--radius-pill);background:var(--border-color-strong);transition:height var(--dur-med) var(--ease), background var(--dur-med)}
.dot::before{content:"";position:absolute;inset:-8px -10px}
.dot.on{height:30px;background:var(--accent)}
.dot span{position:absolute;right:22px;top:50%;transform:translate(8px,-50%);padding:5px 11px;border-radius:var(--radius-pill);background:var(--surface-3);border:var(--border);font-size:.76rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity var(--dur-fast), transform var(--dur-med) var(--ease)}
.dot:hover span{opacity:1;transform:translate(0,-50%)}

.hud{
  position:fixed;left:0;right:0;bottom:0;z-index:50;pointer-events:none;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px var(--pad-x) calc(18px + env(safe-area-inset-bottom,0px));
}
.hud > *{pointer-events:auto}
.counter{display:flex;align-items:baseline;gap:10px;font-family:var(--font-mono);font-size:.82rem;color:var(--text-faint)}
.counter b{font-weight:500;color:var(--text);font-size:1.15rem}
.counter em{font-style:normal;color:var(--text-muted);font-family:var(--font-sans);margin-left:6px}
.arrows{display:flex;gap:8px}
.arrows .icon-btn[disabled]{opacity:.35;pointer-events:none}

#viewport{position:fixed;inset:0;overflow:hidden;touch-action:none;background:var(--bg)}
#track{will-change:transform}
.slide{position:relative;overflow:hidden;background:var(--bg);transition:background var(--dur-theme) var(--ease)}
.slide:nth-child(even){background:var(--bg-2)}
.slide-inner{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:calc(var(--nav-h) + env(safe-area-inset-top,0px)) var(--pad-x) var(--hud-h);
  will-change:transform,opacity;
}
.wrap{width:min(var(--content-max),100%);max-height:100%}
.layer{position:absolute;inset:0;pointer-events:none;will-change:transform}
.blob{position:absolute;border-radius:50%;background:var(--accent);filter:blur(var(--blob-blur));opacity:var(--blob-opacity);transition:background var(--dur-theme)}
.blob.b2{background:var(--accent-2)}
.blob.b3{background:var(--accent-3)}

[data-reveal]{
  opacity:0;transform:translate3d(0,34px,0);
  transition:opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  transition-delay:0s;
}
.slide.is-active [data-reveal]{
  opacity:1;transform:none;
  transition-delay:calc(var(--reveal-base-delay) + var(--i,0) * var(--reveal-step));
}
[data-reveal="left"]{transform:translate3d(-40px,0,0)}
[data-reveal="right"]{transform:translate3d(40px,0,0)}
[data-reveal="scale"]{transform:scale(.92)}
.w{display:inline-block;overflow:hidden;vertical-align:top;padding:0 .03em .16em;margin-bottom:-.16em}
.wi{display:inline-block;transform:translate3d(0,112%,0) rotate(4deg);transform-origin:left bottom;transition:transform 1s var(--ease);transition-delay:0s}
.slide.is-active .wi{transform:none;transition-delay:calc(var(--reveal-base-delay) + var(--w) * var(--word-step))}

.h-hero{font-size:var(--fs-hero);line-height:1.13;letter-spacing:var(--tracking-tight);font-weight:700}
.h2{font-size:var(--fs-h2);line-height:1.04;letter-spacing:var(--tracking-tight);font-weight:700}
.lead{font-size:var(--fs-lead);color:var(--text-muted);line-height:1.5;max-width:34em}
.muted{color:var(--text-muted)}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 14px 7px 10px;border-radius:var(--radius-pill);background:var(--surface);border:var(--border);font-size:.84rem;color:var(--text-muted)}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--accent-3);box-shadow:0 0 0 0 var(--accent-3);animation:ping 2.2s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent-3) 60%,transparent)}100%{box-shadow:0 0 0 12px transparent}}

.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 24px;border-radius:var(--radius-pill);
  font-weight:600;font-size:.96rem;position:relative;overflow:hidden;
  transition:transform var(--dur-med) var(--ease), border-color var(--dur-fast), background var(--dur-fast);
}
.btn .icon{transition:transform var(--dur-med) var(--ease)}
.btn:hover{transform:translateY(-3px)}
.btn:hover .icon{transform:translateX(4px)}
.btn-primary{background:var(--grad-accent);color:var(--on-accent)}
.btn-ghost{background:var(--surface);border:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent)}

.card{
  position:relative;background:var(--surface);border:var(--border);border-radius:var(--radius-lg);
  transition:transform var(--dur-med) var(--ease), border-color var(--dur-med), background var(--dur-theme);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity var(--dur-med);
  border-radius:var(--radius-lg);background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%), color-mix(in srgb,var(--accent) 16%,transparent), transparent 62%);
}
.card:hover{border-color:var(--border-color-strong);transform:translateY(-4px)}
.card:hover::before{opacity:1}

#heroCanvas{position:absolute;inset:0;width:100%;height:100%}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:clamp(18px,2.6vh,30px);align-items:flex-start}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-cards{position:relative;height:min(460px,56vh)}
.float{position:absolute;background:var(--surface);border:var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:18px 20px}
.float.f1{left:2%;top:4%;width:92%}
.float.f2{right:-2%;bottom:6%;width:64%;padding:16px 18px}
.float.f3{left:-6%;bottom:22%;width:44%;padding:14px 16px;border-radius:var(--radius-md)}
.float h4{margin:0 0 12px;font-size:.84rem;font-weight:500;color:var(--text-muted);display:flex;align-items:center;justify-content:space-between}
.live{display:inline-flex;align-items:center;gap:6px;color:var(--accent-3);font-size:.76rem}
.live::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.25}}
.kv{display:flex;justify-content:space-between;align-items:baseline;padding:9px 0;border-top:var(--border);font-size:.88rem}
.kv:first-of-type{border-top:0}
.kv span{color:var(--text-muted)}
.kv b{font-family:var(--font-mono);font-weight:500;font-size:.95rem}
.bars{display:flex;align-items:flex-end;gap:5px;height:54px;margin-top:6px}
.bars i{flex:1;border-radius:5px 5px 2px 2px;background:var(--accent);opacity:.9;transition:height 1s var(--ease);min-height:6px}
.bars i:nth-child(3n){background:var(--accent-2)}
.float .big{font-size:1.9rem;font-weight:700;letter-spacing:-.03em}
.float small{color:var(--text-muted);font-size:.8rem}
.scroll-hint{position:absolute;left:50%;bottom:calc(var(--hud-h) - 6px);transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-faint);font-size:.78rem}
.scroll-hint .mouse{width:22px;height:34px;border:var(--border-strong);border-radius:12px;position:relative}
.scroll-hint .mouse::after{content:"";position:absolute;left:50%;top:7px;width:3px;height:7px;margin-left:-1.5px;border-radius:2px;background:var(--accent);animation:wheel 1.8s infinite var(--ease-in-out)}
@keyframes wheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(11px);opacity:0}100%{opacity:0}}

.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,80px);align-items:center}
.about-copy{display:flex;flex-direction:column;gap:22px}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.stat{padding:clamp(18px,2.4vw,30px)}
.stat .num{font-size:clamp(2.1rem,4.4vw,3.6rem);font-weight:700;letter-spacing:var(--tracking-tight);line-height:1}
.stat .num sup,.stat .num small{font-size:.5em;font-weight:600;margin-left:3px;vertical-align:baseline}
.stat p{margin-top:10px;color:var(--text-muted);font-size:.92rem;line-height:1.4}
.stat:nth-child(2){margin-top:28px;margin-bottom:-29px;}.stat:nth-child(4){margin-top:28px;margin-bottom:-51px;}
.stat:nth-child(1),.stat:nth-child(3){margin-top:-28px;margin-bottom:27px;}

.head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:clamp(18px,3.5vh,38px)}
.head .lead{max-width:26em}
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.svc{padding:clamp(18px,2.2vw,28px);display:flex;flex-direction:column;gap:14px;min-height:clamp(150px,22vh,210px)}
.ico{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;background:var(--surface-2);border:var(--border);color:var(--accent);transition:background var(--dur-med) var(--ease), color var(--dur-med), transform var(--dur-med) var(--ease)}
.ico .icon{width:25px;height:25px}
.svc:hover .ico{background:var(--accent);color:var(--on-accent);transform:rotate(-6deg) scale(1.06)}
.svc:nth-child(3n+2) .ico{color:var(--accent-2)}
.svc:nth-child(3n+2):hover .ico{background:var(--accent-2);color:var(--on-accent)}
.svc:nth-child(3n) .ico{color:var(--accent-3)}
.svc:nth-child(3n):hover .ico{background:var(--accent-3);color:var(--bg)}
.svc h3{font-size:var(--fs-h3);font-weight:600;letter-spacing:-.015em}
.svc p{color:var(--text-muted);font-size:.92rem;line-height:1.45}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}
.tags span{padding:3px 10px;border-radius:var(--radius-pill);background:var(--surface-2);font-size:.74rem;color:var(--text-muted);font-family:var(--font-mono)}

.code-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(24px,4vw,64px);align-items:center}
.code-copy{display:flex;flex-direction:column;gap:20px}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;color:var(--text-muted);font-size:.96rem}
.checks .icon{color:var(--accent-3);margin-top:3px;width:1.1em;height:1.1em}
.window{background:var(--code-bg);border:var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;transition:background var(--dur-theme)}
.win-bar{display:flex;align-items:center;gap:14px;padding:12px 16px;border-bottom:var(--border);background:var(--surface)}
.lights{display:flex;gap:7px}
.lights i{width:11px;height:11px;border-radius:50%;background:var(--surface-3)}
.lights i:nth-child(1){background:#ff5f57}.lights i:nth-child(2){background:#febc2e}.lights i:nth-child(3){background:#28c840}
.tabs{display:flex;gap:4px;margin-left:6px;flex:1}
.tab{padding:6px 13px;border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.78rem;color:var(--text-faint);transition:background var(--dur-fast), color var(--dur-fast)}
.tab:hover{color:var(--text)}
.tab.on{background:var(--surface-3);color:var(--text)}
.copy-btn{display:flex;align-items:center;gap:6px;padding:6px 11px;border-radius:var(--radius-sm);font-size:.78rem;color:var(--text-muted);transition:background var(--dur-fast), color var(--dur-fast)}
.copy-btn:hover{background:var(--surface-3);color:var(--text)}
.copy-btn .icon{width:15px;height:15px}
.code{display:none;margin:0;padding:18px 0;font-family:var(--font-mono);font-size:clamp(.68rem,.92vw,.84rem);line-height:1.75;counter-reset:ln;overflow:hidden}
.code.on{display:block}
.ln{display:block;padding:0 20px 0 0;white-space:pre;color:var(--text)}
.ln::before{counter-increment:ln;content:counter(ln);display:inline-block;width:3.2em;padding-right:1.4em;text-align:right;color:var(--text-faint)}
.slide.is-active .code.on .ln{animation:lineIn .7s var(--ease) both;animation-delay:calc(.45s + var(--l) * .055s)}
.slide:not(.is-active) .code .ln{opacity:0}
@keyframes lineIn{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
.t-k{color:var(--accent)}.t-s{color:var(--accent-3)}.t-c{color:var(--text-faint);font-style:italic}.t-f{color:var(--accent-2)}.t-n{color:#ffb547}
:root[data-theme="light"] .t-n{color:#b86a00}
.win-foot{display:flex;gap:18px;padding:11px 18px;border-top:var(--border);font-family:var(--font-mono);font-size:.74rem;color:var(--text-faint);background:var(--surface)}
.win-foot b{color:var(--accent-3);font-weight:500}

.metrics{display:grid;grid-template-columns:1.55fr .75fr;gap:var(--gap);align-items:stretch}
.chart-card{padding:clamp(16px,2vw,26px)}
.chart-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap;margin-bottom:6px}
.seg{display:inline-flex;padding:4px;border-radius:var(--radius-pill);background:var(--surface-2);border:var(--border)}
.seg button{padding:7px 14px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:500;color:var(--text-muted);transition:background var(--dur-med) var(--ease), color var(--dur-fast)}
.seg button.on{background:var(--accent);color:var(--on-accent)}
.delta{display:flex;align-items:baseline;gap:12px;margin:10px 0 2px}
.delta b{font-size:clamp(2rem,3.6vw,3rem);font-weight:700;letter-spacing:var(--tracking-tight);line-height:1}
.delta span{color:var(--text-muted);font-size:.88rem}
.chart-wrap{position:relative}
.chart{width:100%;height:auto;display:block;overflow:visible}
.chart text{font-family:var(--font-mono);font-size:11px;fill:var(--text-faint)}
.chart .grid{stroke:var(--border-color);stroke-width:1;stroke-dasharray:3 6}
.chart .ln-path{fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.8s var(--ease-in-out)}
.chart .ln-before{stroke:var(--text-faint);stroke-width:2;stroke-dasharray:1}
.chart.draw .ln-path{stroke-dashoffset:0}
.chart .area{opacity:0;transition:opacity 1.2s ease .9s}
.chart.draw .area{opacity:1}
.chart .guide{stroke:var(--border-color-strong);stroke-width:1;opacity:0;transition:opacity var(--dur-fast)}
.chart .hp{opacity:0;transition:opacity var(--dur-fast)}
.chart.hover .guide,.chart.hover .hp{opacity:1}
.tip{position:absolute;top:0;pointer-events:none;opacity:0;transform:translate(-50%,-6px);transition:opacity var(--dur-fast), left .08s linear;background:var(--surface-3);border:var(--border-strong);border-radius:var(--radius-sm);padding:9px 13px;font-size:.78rem;line-height:1.5;white-space:nowrap;box-shadow:var(--shadow-md);z-index:3}
.tip.show{opacity:1}
.tip b{font-family:var(--font-mono);font-weight:500}
.legend{display:flex;gap:18px;margin-top:6px;font-size:.8rem;color:var(--text-muted)}
.legend i{display:inline-block;width:18px;height:3px;border-radius:2px;margin-right:8px;vertical-align:middle}
.side{display:grid;grid-template-rows:repeat(3,1fr);gap:var(--gap)}
.ring-card{display:flex;align-items:center;gap:18px;padding:clamp(14px,1.6vw,22px)}
.ring{position:relative;width:clamp(70px,8vw,92px);flex:none}
.ring svg{width:100%;display:block;transform:rotate(-90deg)}
.ring .track{fill:none;stroke:var(--surface-3);stroke-width:7}
.ring .bar{fill:none;stroke:url(#gradStroke);stroke-width:7;stroke-linecap:round;stroke-dasharray:226.2;stroke-dashoffset:226.2;transition:stroke-dashoffset 2s var(--ease) calc(var(--reveal-base-delay) + .3s)}
.slide.is-active .ring .bar{stroke-dashoffset:calc(226.2 * (1 - var(--v)))}
.ring .ring-n{position:absolute;inset:0;display:grid;place-items:center;font-weight:700;font-size:clamp(.82rem,1.1vw,1rem);letter-spacing:-.02em}
.ring-card h3{font-size:1rem;font-weight:600;margin-bottom:3px;letter-spacing:-.01em}
.ring-card p{font-size:.84rem;color:var(--text-muted);line-height:1.4}

.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:clamp(10px,3vh,34px)}
.steps-line{position:absolute;left:12%;right:12%;top:24px;height:2px;background:var(--border-color);border-radius:2px;overflow:hidden}
.steps-line::after{content:"";position:absolute;inset:0;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform 2.2s var(--ease-in-out)}
.slide.is-active .steps-line::after{transform:scaleX(1);transition-delay:.5s}
.step{padding:clamp(18px,2vw,26px);display:flex;flex-direction:column;gap:14px;margin-top:62px}
.step-n{position:absolute;left:50%;top:-62px;transform: translateX(-50%);width:46px;height:46px;border-radius:50%;background:var(--bg-2);border:2px solid var(--accent);display:grid;place-items:center;font-weight:700;font-size: 19px;font-family:var(--font-mono);color:var(--accent);z-index:2;transition:background var(--dur-med), color var(--dur-med)}
.step{overflow:visible}
.step:hover .step-n{background:var(--accent);color:var(--on-accent)}
.step h3{font-size:var(--fs-h3);font-weight:600;letter-spacing:-.015em}
.step p{color:var(--text-muted);font-size:.92rem;line-height:1.45}
.step .term{margin-top:auto;font-family:var(--font-mono);font-size:.76rem;color:var(--accent-3)}

.stack-wrap{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:clamp(12px,2vh,20px);padding:0}
.stack-head{width:min(var(--content-max),100%);margin:0 auto;padding:0 var(--pad-x);display:flex;flex-direction:column;gap:18px;align-items:flex-start;margin-bottom:clamp(8px,3vh,36px)}
.marquee{padding:4px 0;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}
.marquee-track{display:flex;gap:14px;width:max-content;animation:marquee var(--marquee-speed) linear infinite}
.marquee.rev .marquee-track{animation-direction:reverse;animation-duration:calc(var(--marquee-speed) * 1.25)}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.chip{display:inline-flex;align-items:center;gap:12px;padding:14px 22px 14px 14px;border-radius:var(--radius-pill);background:var(--surface);border:var(--border);font-weight:600;font-size:clamp(.95rem,1.4vw,1.2rem);letter-spacing:-.01em;transition:border-color var(--dur-fast), transform var(--dur-med) var(--ease)}
.chip:hover{border-color:var(--accent);transform:translateY(-3px)}
.chip .ico{width:38px;height:38px;border-radius:50%}
.chip .ico .icon{width:19px;height:19px}

.contact{display:flex;flex-direction:column;align-items:center;text-align:center;gap:clamp(18px,3vh,30px)}
.contact .h-hero{font-size:clamp(2.4rem,8vw,7rem)}
.contact .lead{margin:0 auto}
.mail-box{display:flex;align-items:center;gap:6px;padding:7px 7px 7px 26px;border-radius:var(--radius-pill);background:var(--surface);border:var(--border-strong);font-size:clamp(1rem,2vw,1.5rem);font-weight:600;letter-spacing:-.02em;transition:border-color var(--dur-fast)}
.mail-box:hover{border-color:var(--accent)}
.mail-box .btn{padding:12px 20px;font-size:.9rem}
.socials{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.footer{position:absolute;left:var(--pad-x);right:var(--pad-x);bottom:calc(var(--hud-h) + 6px);display:flex;justify-content:center;font-size:.8rem;color:var(--text-faint)}
.toast{position:fixed;left:50%;bottom:calc(90px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);padding:11px 20px;border-radius:var(--radius-pill);background:var(--surface-3);border:var(--border-strong);box-shadow:var(--shadow-md);opacity:0;pointer-events:none;transition:opacity var(--dur-med), transform var(--dur-med) var(--ease);z-index:80;font-size:.88rem}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width: 1020px){
  .menu{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-cards{display:none}
  .about,.code-layout,.metrics{grid-template-columns:1fr}
  .services{grid-template-columns:repeat(2,1fr)}
  .side{grid-template-rows:none;grid-template-columns:repeat(3,1fr)}
  .ring-card{flex-direction:column;text-align:center;align-items:center}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:76px}
  .steps-line{display:none}
  .step-n{top: -24px;border-color:var(--accent)}
}
@media (max-width: 720px){
  :root{--nav-h:68px;--hud-h:66px}
  .dots{display:none}
  .head{flex-direction:column;align-items:flex-start;gap:12px}
  .head .lead{display:none}
  .svc p,.svc .tags{display:none}
  .svc{min-height:0;gap:10px}
  .ico{width:42px;height:42px}
  .stats{gap:10px}
  .stat:nth-child(n){margin-top:0}
  .about-copy .lead{display:none}
  .code-copy .checks,.code-copy .lead{display:none}
  .win-foot{display:none}
  .ln::before{width:2.2em;padding-right:.8em}
  .side{grid-template-columns:1fr}
  .ring-card{flex-direction:row;text-align:left}
  .side .ring-card:nth-child(3){display:none}
  .step p{display:none}
  .steps{row-gap:70px}
  .step{margin-top:58px;padding-top:30px}
  .counter em{display:none}
  .mail-box{padding-left:18px}
}
@media (max-height: 700px) and (min-width: 721px){
  :root{--nav-h:64px;--hud-h:60px}
  .svc p{display:none}
  .svc{min-height:0}
  .delta{margin:4px 0 0}
  .hero-cards{height:min(380px,52vh)}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;transition-delay:0s !important}
  .marquee-track{animation:none}
}