/* tretton.si: public site. Mobile first. Night by default, birch-light when the system asks for it.
   Shared tokens (tokens.css) stay calm for the alumni app; the flash lives here. */
:root{
  --bg:#07080d;--bg2:#0f121b;--fg:#eef0f6;--soft:#a7aec0;--line:rgba(255,255,255,.11);
  --card:rgba(255,255,255,.035);--card-hi:rgba(255,255,255,.075);--field:rgba(255,255,255,.05);
  --c1:#ff5a3c;--c2:#ff3d8b;--c3:#8b5cff;--c4:#3cc8ff;--ring:#ff8ab5;--ok:#3ddc84;
  --grad:linear-gradient(100deg,var(--c1),var(--c2) 35%,var(--c3) 70%,var(--c4));
  --aurora:.6;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --hh:3.75rem;--sat:env(safe-area-inset-top,0px);
  --g:clamp(1rem,4vw,3rem);
  --gl:max(var(--g),env(safe-area-inset-left,0px));--gr:max(var(--g),env(safe-area-inset-right,0px));
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:dark;
}
@media (prefers-color-scheme:light){:root{
  --bg:#f6f5f2;--bg2:#ecebe5;--fg:#11131a;--soft:#4a5060;--line:rgba(17,19,26,.13);
  --card:rgba(255,255,255,.65);--card-hi:#fff;--field:#fff;
  --c1:#e3401f;--c2:#d81b67;--c3:#6a3df0;--c4:#1188c4;--ring:#c4185c;--ok:#13804a;--aurora:.38;color-scheme:light;
}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--hh) + var(--sat) + 1rem)}
body{margin:0;background:var(--bg);color:var(--fg);font:400 var(--step-0)/1.6 var(--sans);overflow-x:clip;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration-color:var(--c2);text-underline-offset:.2em}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.05}
h2{font-size:clamp(1.6rem,1.1rem + 2.4vw,3rem)}
p{margin:0}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--ring);outline-offset:3px;border-radius:6px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.skiplink{position:absolute;left:1rem;top:-4rem;z-index:100;background:var(--fg);color:var(--bg);padding:.75rem 1rem;border-radius:999px}
.skiplink:focus{top:calc(var(--sat) + .5rem)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.eyebrow{font:600 .78rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--soft);display:flex;flex-wrap:wrap;align-items:center;gap:.6rem}

/* Buttons */
.btn{position:relative;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;padding:0 1.4rem;border-radius:999px;border:0;background:var(--fg);color:var(--bg);font-weight:700;text-decoration:none;white-space:nowrap;transition:transform .25s var(--ease)}
.btn::before{content:"";position:absolute;inset:-3px;z-index:-1;border-radius:inherit;background:var(--grad);filter:blur(14px);opacity:.55;transition:opacity .25s}
.btn:hover{transform:translateY(-2px)}.btn:hover::before{opacity:.95}
.btn-ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn-ghost::before{display:none}.btn-ghost:hover{box-shadow:inset 0 0 0 1.5px var(--c2)}
.btn-sm{min-height:44px;padding:0 1.1rem;font-size:.9rem}
.btn-sm::before{filter:blur(10px);opacity:.4}
.btn-block{width:100%;min-height:56px;font-size:1.05rem}

/* Header */
.top{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:1rem;height:calc(var(--hh) + var(--sat));padding:var(--sat) var(--gr) 0 var(--gl);
  background:color-mix(in srgb,var(--bg) 62%,transparent);-webkit-backdrop-filter:blur(16px) saturate(1.5);backdrop-filter:blur(16px) saturate(1.5);border-bottom:1px solid transparent;transition:border-color .3s}
.top.scrolled{border-bottom-color:var(--line)}
.mark{font-weight:800;font-size:1.3rem;letter-spacing:-.04em;text-decoration:none;margin-right:auto;min-height:44px;display:inline-flex;align-items:center}
.mark-si{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.top nav{display:none}
@media (min-width:800px){
  .top nav{display:flex;gap:.25rem}
  .top nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 .85rem;border-radius:999px;color:var(--soft);text-decoration:none;font-size:.95rem;font-weight:500}
  .top nav a:hover{color:var(--fg);background:var(--card-hi)}
}

/* Hero */
.hero{position:relative;overflow:hidden;margin-top:calc(-1 * (var(--hh) + var(--sat)));padding:calc(var(--hh) + var(--sat) + clamp(2.5rem,9vw,7rem)) var(--gr) clamp(3rem,8vw,6rem) var(--gl)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 10%,transparent 75%);mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 10%,transparent 75%);opacity:.45}
.aurora{position:absolute;inset:0;opacity:var(--aurora);pointer-events:none}
.aurora i{position:absolute;width:75vmax;height:75vmax;border-radius:50%;will-change:transform}
.aurora i:nth-child(1){left:-30vmax;top:-35vmax;background:radial-gradient(circle,var(--c2),transparent 62%);animation:drift1 18s ease-in-out infinite alternate}
.aurora i:nth-child(2){right:-35vmax;top:-20vmax;background:radial-gradient(circle,var(--c3),transparent 62%);animation:drift2 22s ease-in-out infinite alternate}
.aurora i:nth-child(3){left:10vmax;top:5vmax;background:radial-gradient(circle,var(--c4),transparent 60%);opacity:.6;animation:drift3 26s ease-in-out infinite alternate}
@keyframes drift1{to{transform:translate(18vmax,12vmax) scale(1.15)}}
@keyframes drift2{to{transform:translate(-14vmax,16vmax) scale(.9)}}
@keyframes drift3{to{transform:translate(10vmax,-14vmax) scale(1.2)}}
.hero-in{position:relative;z-index:1;max-width:76rem;margin:0 auto;display:grid;gap:clamp(2.5rem,6vw,4rem)}
@media (min-width:960px){.hero-in{grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr);align-items:center}}
.pulse{width:.55rem;height:.55rem;border-radius:50%;background:#3ddc84;box-shadow:0 0 0 0 rgba(61,220,132,.6);animation:ping 2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 .6rem rgba(61,220,132,0)}100%{box-shadow:0 0 0 0 rgba(61,220,132,0)}}
.hero h1{margin:1.25rem 0 1.5rem;display:flex;flex-direction:column}
.h-l1,.h-l2{font-size:clamp(2.5rem,1.3rem + 5.6vw,5.6rem);letter-spacing:-.05em;line-height:.98;animation:rise .9s var(--ease) both}
.h-l2{color:var(--soft);font-weight:700;animation-delay:.12s}
.h-si{display:flex;flex-direction:column;margin-top:.1em;animation:rise .9s var(--ease) .24s both}
.si-word{font-size:clamp(6rem,3rem + 16vw,14rem);font-weight:900;letter-spacing:-.06em;line-height:.82;width:max-content;
  background:var(--grad);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 28px color-mix(in srgb,var(--c2) 45%,transparent));animation:shimmer 8s linear infinite}
.si-dot{display:inline-block;width:.22em;height:.22em;margin-right:.06em;border-radius:50%;overflow:hidden;text-indent:200%;white-space:nowrap;color:transparent;vertical-align:baseline;
  background:radial-gradient(circle at 35% 35%,#ffd2c4,var(--c1) 45%,#b3150c);box-shadow:0 0 .12em var(--c1),0 0 .4em color-mix(in srgb,var(--c1) 60%,transparent);animation:glow 2.6s ease-in-out infinite}
.si-def{font:700 clamp(.78rem,.62rem + .8vw,1.2rem)/1.2 var(--mono);text-transform:uppercase;letter-spacing:.42em;margin-top:.9rem;padding-left:.15em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes shimmer{to{background-position:-200% 0}}
@keyframes glow{50%{box-shadow:0 0 .2em var(--c1),0 0 .8em color-mix(in srgb,var(--c1) 70%,transparent)}}
@keyframes rise{from{opacity:0;transform:translateY(.4em)}}
.lede{max-width:36ch;font-size:clamp(1.05rem,.95rem + .5vw,1.3rem);color:var(--soft);animation:rise .9s var(--ease) .36s both}
.ctas{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem;animation:rise .9s var(--ease) .48s both}

/* Hero S.I. demo */
.demo{position:relative;display:grid;gap:.75rem;padding:1.1rem;border-radius:24px;background:color-mix(in srgb,var(--bg2) 75%,transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:0 30px 80px -30px color-mix(in srgb,var(--c3) 60%,transparent);
  max-width:28rem;width:100%;justify-self:center;animation:rise 1s var(--ease) .5s both}
.demo::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:var(--grad);opacity:.7;pointer-events:none;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0)}
.demo-head{display:flex;align-items:center;gap:.6rem;font-size:.85rem;color:var(--soft)}
.live{margin-left:auto;font:600 .7rem var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--ok)}
.si-avatar{flex:none;display:inline-grid;place-items:center;width:2.25rem;height:2.25rem;border-radius:50%;background:var(--grad);color:#fff;font:800 .72rem var(--sans);letter-spacing:.02em;box-shadow:0 0 18px color-mix(in srgb,var(--c2) 50%,transparent)}
.b{max-width:88%;padding:.7rem .95rem;border-radius:18px 18px 18px 6px;background:var(--card-hi);font-size:.95rem;line-height:1.45}
.b.me,#si-log .me{justify-self:end;border-radius:18px 18px 6px 18px;background:linear-gradient(135deg,#c2185b,#5b34d6);color:#fff}
.d1{animation:pop .5s var(--ease) .9s both}
.d2{animation:pop .5s var(--ease) 1.6s both}
.d2{position:relative}
.d2 .txt{animation:fadein .4s 2.9s both}
.d2 .typing{position:absolute;left:.95rem;top:.85rem;animation:fadeout .2s 2.8s forwards}
.d3{animation:pop .5s var(--ease) 3.4s both}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.96)}}
@keyframes fadein{from{opacity:0}}
@keyframes fadeout{to{opacity:0}}
.fills{display:flex;flex-wrap:wrap;gap:.4rem}
.fills span{font:500 .75rem var(--mono);padding:.35rem .6rem;border-radius:999px;border:1px solid var(--line);color:var(--soft)}
.fills b{color:var(--fg);font-weight:700}
.fills span::before{content:"✓ ";color:var(--ok)}
.typing{display:inline-flex;gap:.3rem;padding:.3rem 0}
.typing i{width:.45rem;height:.45rem;border-radius:50%;background:var(--soft);animation:bounce 1.2s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,60%,100%{transform:none;opacity:.5}30%{transform:translateY(-.3rem);opacity:1}}

/* Marquee */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding:1rem 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.track{display:flex;width:max-content;animation:marquee 40s linear infinite}
.track span{font-weight:700;font-size:clamp(1.1rem,.9rem + 1vw,1.6rem);letter-spacing:-.02em;white-space:nowrap;padding-right:1.5rem}
.track span::after{content:"✦";margin-left:1.5rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes marquee{to{transform:translateX(-50%)}}

/* Sections */
.services,.how,.start{max-width:76rem;margin:0 auto;padding:clamp(4rem,10vw,8rem) var(--gr) 0 var(--gl)}
.services{display:grid;gap:1rem}
@media (min-width:900px){.services{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}}
.card{position:relative;padding:clamp(1.4rem,3vw,2rem);border-radius:24px;background:var(--card);border:1px solid var(--line);display:grid;gap:1rem;align-content:start;
  transition:transform .4s var(--ease),box-shadow .4s,border-color .4s}
.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--c2) 50%,var(--line));box-shadow:0 30px 70px -35px color-mix(in srgb,var(--c3) 70%,transparent)}
.card h2{font-size:clamp(1.5rem,1.2rem + 1.2vw,2rem)}
.card p{color:var(--soft)}
.num{font:700 .85rem var(--mono);letter-spacing:.1em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent!important;width:max-content}
.showcase{list-style:none;margin:.5rem 0 0;padding:0;display:grid;gap:.75rem}
.showcase li{display:grid;gap:.15rem;padding:.9rem 1rem;border-radius:14px;background:var(--card-hi);border-left:3px solid var(--c2)}
.showcase span{color:var(--soft);font-size:.9rem}

.how h2{max-width:22ch}
.how ol{list-style:none;margin:2.5rem 0 0;padding:0;display:grid;gap:1rem;counter-reset:s}
@media (min-width:800px){.how ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}}
.how li{counter-increment:s;display:grid;gap:.4rem;padding-top:1rem;border-top:1px solid var(--line)}
.how li::before{content:"0" counter(s);font:800 clamp(2.5rem,2rem + 2vw,4rem)/1 var(--sans);letter-spacing:-.05em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;width:max-content}
.how b{font-size:1.2rem}.how li span{color:var(--soft)}

/* Start: form + S.I. */
.start-head{display:grid;gap:1rem;max-width:44rem}
.start-head h2{font-size:clamp(2rem,1.3rem + 3.4vw,3.75rem)}
.start-head>p:last-child{color:var(--soft)}
.start-grid{display:grid;gap:1.5rem;margin-top:2.5rem;align-items:start}
@media (min-width:960px){.start-grid{grid-template-columns:minmax(0,1fr) minmax(20rem,25rem);gap:2rem}}
.panel{padding:clamp(1.1rem,3vw,2rem);border-radius:24px;background:var(--card);border:1px solid var(--line)}
form#req{display:grid;gap:1.25rem}
.row2{display:grid;gap:1.25rem}
@media (min-width:600px){.row2{grid-template-columns:1fr 1fr}}
label{display:grid;gap:.4rem;font-size:.9rem;font-weight:600;color:var(--soft)}
input,textarea{font:inherit;font-weight:400;color:var(--fg);background:var(--field);border:1px solid var(--line);border-radius:14px;padding:.7rem .95rem;min-height:50px;width:100%;min-width:0;transition:border-color .2s,box-shadow .2s}
textarea{resize:vertical;min-height:7.5rem;line-height:1.5}
input::placeholder,textarea::placeholder{color:color-mix(in srgb,var(--soft) 75%,transparent)}
input:focus,textarea:focus{outline:none;border-color:var(--c2);box-shadow:0 0 0 4px color-mix(in srgb,var(--c2) 25%,transparent)}
input[type=date]{-webkit-appearance:none;appearance:none;display:block}
fieldset{border:0;padding:0;margin:0;min-width:0}
legend{font-size:.9rem;font-weight:600;color:var(--soft);padding:0;margin-bottom:.5rem}
.seg{display:flex;flex-wrap:wrap;gap:.5rem;border-radius:16px}
label.inline{position:relative;display:inline-flex;align-items:center;gap:.4rem;min-height:46px;padding:.5rem 1.05rem;border-radius:999px;border:1px solid var(--line);background:var(--field);color:var(--fg);font-weight:600;cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s}
label.inline small{font-weight:400;color:var(--soft);font-size:.8rem}
label.inline input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;min-height:0;cursor:pointer}
label.inline:has(input:checked){border-color:transparent;background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;border:1.5px solid transparent;box-shadow:0 8px 24px -12px var(--c2)}
label.inline:has(input:focus-visible){outline:3px solid var(--ring);outline-offset:3px}
.trap{position:absolute;left:-9999px}
.flash{animation:flash 1.5s ease-out}
@keyframes flash{from{box-shadow:0 0 0 4px color-mix(in srgb,var(--c2) 55%,transparent),0 0 30px color-mix(in srgb,var(--c3) 60%,transparent);background-color:color-mix(in srgb,var(--c2) 14%,var(--field))}}

/* Plan */
#plan{border-radius:18px;background:var(--card-hi);border:1px solid var(--line);padding:1rem}
.plan-h{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap;font-size:.95rem;font-weight:700}
.plan-h span{font:500 .8rem var(--mono);color:var(--soft)}
.bar{display:flex;gap:3px;height:10px;margin:.85rem 0 1rem;border-radius:999px;overflow:hidden}
.bar i{display:block;background:var(--grad);background-size:var(--w,400%) 100%;background-position:var(--p,0) 0;transform-origin:left;animation:grow .7s var(--ease) both}
@keyframes grow{from{transform:scaleX(0)}}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:.1rem}
.steps li{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:.75rem;padding:.55rem 0;border-top:1px solid var(--line);font-size:.92rem}
.steps li:first-child{border-top:0}
.steps .n{font:700 .75rem/1.9 var(--mono);color:var(--soft)}
.steps .t{font-weight:600}
.steps .m{grid-column:2;display:flex;justify-content:space-between;gap:.75rem;flex-wrap:wrap;font:500 .8rem var(--mono);color:var(--soft)}
#status{min-height:1.5rem;color:var(--soft);text-align:center}

/* S.I. assistant: floating bubble + bottom sheet on phones, sticky side panel on desktop */
#si{position:fixed;z-index:45;right:max(1rem,env(safe-area-inset-right,0px));bottom:max(1rem,env(safe-area-inset-bottom,0px));transition:opacity .3s,visibility .3s,transform .3s var(--ease)}
@media (max-width:959.98px){.js:not(.past-hero) #si:not(.open){opacity:0;visibility:hidden;transform:translateY(1rem) scale(.9)}}
.si-toggle{display:inline-flex;align-items:center;gap:.6rem;min-height:56px;padding:.4rem 1.2rem .4rem .45rem;border-radius:999px;border:1px solid var(--line);
  background:color-mix(in srgb,var(--bg2) 85%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);font-weight:700;
  box-shadow:0 12px 40px -10px color-mix(in srgb,var(--c2) 60%,transparent),0 0 0 1px color-mix(in srgb,var(--c3) 30%,transparent);animation:pop .6s var(--ease) 1.2s both}
.si-toggle .si-avatar{width:2.6rem;height:2.6rem}
#si-body{display:none;flex-direction:column;gap:.75rem;min-height:0}
#si.open{left:0;right:0;bottom:0}
#si.open .si-toggle{display:none}
#si.open #si-body{display:flex;max-height:min(78svh,40rem);padding:1rem var(--gr) max(1rem,env(safe-area-inset-bottom,0px)) var(--gl);border-radius:24px 24px 0 0;
  background:color-mix(in srgb,var(--bg2) 94%,transparent);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--line);
  box-shadow:0 -20px 60px -20px color-mix(in srgb,var(--c3) 50%,transparent);animation:sheet .35s var(--ease)}
@keyframes sheet{from{transform:translateY(40%);opacity:0}}
.si-name{display:flex;align-items:center;gap:.75rem}
.si-title{display:grid;line-height:1.25}.si-title small{color:var(--soft);font-size:.78rem}
.si-close{margin-left:auto;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--card-hi);font-size:1.5rem;line-height:1}
#si-log{flex:1;min-height:9rem;overflow:auto;overscroll-behavior:contain;display:grid;gap:.6rem;align-content:start;padding:.25rem .1rem}
#si-log p{max-width:88%;padding:.7rem .95rem;border-radius:18px 18px 18px 6px;background:var(--card-hi);font-size:.95rem;line-height:1.45;animation:pop .35s var(--ease) both}
.chips{display:flex;gap:.5rem;overflow-x:auto;scrollbar-width:none;margin:0 calc(-1 * var(--gr)) 0 calc(-1 * var(--gl));padding:.15rem var(--gr) .15rem var(--gl)}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;min-height:44px;padding:0 1rem;border-radius:999px;border:1px solid var(--line);background:var(--field);font-size:.88rem;font-weight:600;white-space:nowrap}
.chip:hover{border-color:var(--c2)}
#si-help{background:linear-gradient(var(--bg2),var(--bg2)) padding-box,var(--grad) border-box;border:1.5px solid transparent}
#si-form{display:flex;gap:.5rem;align-items:center}
#si-input{flex:1;border-radius:999px;min-height:52px;padding:0 1.15rem}
#si-form .send{flex:none;width:52px;height:52px;border-radius:50%;border:0;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#c2185b,#5b34d6);box-shadow:0 8px 24px -8px var(--c2)}
@media (min-width:960px){
  #si{position:sticky;top:calc(var(--hh) + var(--sat) + 1rem);left:auto;right:auto;bottom:auto;z-index:1}
  #si.open{left:auto;right:auto;bottom:auto}
  .si-toggle,.si-close{display:none}
  #si-body,#si.open #si-body{display:flex;height:min(40rem,calc(100vh - var(--hh) - 2.5rem));max-height:none;padding:1.25rem;border-radius:24px;
    background:var(--card);border:1px solid var(--line);box-shadow:0 30px 80px -40px color-mix(in srgb,var(--c3) 80%,transparent);animation:none;position:relative}
  #si-body::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:var(--grad);opacity:.6;pointer-events:none;
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0)}
  .chips{flex-wrap:wrap;overflow:visible;margin:0;padding:0}
}

/* Footer */
.foot{max-width:76rem;margin:clamp(5rem,12vw,9rem) auto 0;padding:0 var(--gr) calc(6.5rem + env(safe-area-inset-bottom,0px)) var(--gl);color:var(--soft);display:grid;gap:.6rem;font-size:.95rem}
.foot-big{font-weight:900;font-size:clamp(3.4rem,17vw,13rem);letter-spacing:-.06em;line-height:.9;color:var(--fg);opacity:.95;margin-bottom:1rem}
.foot a{color:var(--fg);font-weight:600;display:inline-flex;align-items:center;min-height:44px;padding:0 .2rem}
@media (min-width:960px){.foot{padding-bottom:3rem}}

/* Scroll reveal (only when JS runs and motion is welcome) */
@media (prefers-reduced-motion:no-preference){
  .js [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
  .js [data-reveal].in{opacity:1;transform:none}
  .how li[data-reveal]:nth-child(2){transition-delay:.1s}.how li[data-reveal]:nth-child(3){transition-delay:.2s}
  .services .card:nth-child(2){transition-delay:.08s}.services .card:nth-child(3){transition-delay:.16s}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .d2 .typing{display:none}
}

/* Intro (only plays when intro/manifest.json lists media) */
#intro{position:fixed;inset:0;z-index:90;background:#07080d;color:#fff;overflow:hidden}
#intro .strips{position:absolute;inset:0;display:grid;grid-template-columns:repeat(5,1fr)}
#intro .strip{position:relative;overflow:hidden;background:#07080d;border-left:1px solid rgba(255,255,255,.06)}
#intro .strip>*{position:absolute;top:0;height:100%;width:500%;object-fit:cover}
#intro .cap{position:absolute;left:var(--gl);right:var(--gr);bottom:calc(2.5rem + env(safe-area-inset-bottom,0px));z-index:2;font-weight:800;font-size:clamp(1.5rem,1rem + 3vw,3rem);letter-spacing:-.03em;text-shadow:0 2px 20px rgba(0,0,0,.6)}
#intro .skip{position:absolute;right:var(--gr);top:calc(1rem + var(--sat));z-index:3;min-height:44px;padding:0 1.1rem;border-radius:999px;border:1px solid rgba(255,255,255,.3);background:rgba(0,0,0,.35);color:#fff;font-weight:600}