/* Alt Innovations website styles. Shared by index.html and privacy.html.
   Colours come from the brand mark: sky #46b1e1, orange #e97132, navy. */
:root{
  --navy:#0f2747; --deep:#0a1b33; --ink:#0b1b31;
  --sky:#46b1e1; --sky-2:#7ccbf0; --sky-ink:#1f7fb0;
  --orange:#e97132; --orange-2:#f28a52;
  --body:#475569; --muted:#64748b; --line:#e2e8f0; --bg:#fff; --bg-alt:#f6f9fc;
  --on-dark:#c7d6ea; --on-dark-dim:#8ba3c0;
  --radius:14px; --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--bg);color:var(--body);
  font:16px/1.65 "Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;margin:0 0 .5em;letter-spacing:-.022em;font-weight:700}
h1{font-size:clamp(2.2rem,4.8vw,3.7rem);font-weight:800;letter-spacing:-.03em}
h2{font-size:clamp(1.65rem,3.2vw,2.45rem)}
h3{font-size:1.1rem}
p{margin:0 0 1rem}
a{color:var(--sky-ink);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.kicker{display:block;font-size:.76rem;font-weight:700;letter-spacing:.17em;text-transform:uppercase;color:var(--sky-ink);margin-bottom:.85rem}
.head{max-width:760px;margin-bottom:48px}
.head p{font-size:1.08rem}
section{padding:96px 0}
.alt{background:var(--bg-alt);border-block:1px solid var(--line)}
.dark{background:linear-gradient(170deg,var(--navy) 0%,var(--deep) 100%);color:var(--on-dark)}
.dark h2,.dark h3{color:#fff}
.dark .kicker{color:var(--sky-2)}
.dark p{color:var(--on-dark)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 1.7rem;border-radius:10px;font-weight:700;font-size:.97rem;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-1{background:var(--orange);color:#fff;box-shadow:0 10px 24px -12px rgba(233,113,50,.8)}
.btn-1:hover{background:var(--orange-2)}
.btn-2{border:1.5px solid rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.04)}
.btn-2:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-3{border:1.5px solid var(--line);color:var(--ink);background:#fff}
.btn-3:hover{border-color:var(--sky)}
.btns{display:flex;gap:14px;flex-wrap:wrap}

/* header */
header{position:sticky;top:0;z-index:60;background:rgba(10,27,51,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;gap:28px;height:76px}
.nav>a.brand svg{height:40px;width:auto;color:#fff;display:block}
.nav ul{display:flex;align-items:center;gap:26px;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{color:var(--on-dark);font-size:.92rem;font-weight:500}
.nav ul a:hover{color:#fff;text-decoration:none}
.nav .cta{background:var(--orange);color:#fff!important;padding:.62rem 1.15rem;border-radius:8px;font-weight:700;font-size:.88rem}
.nav .cta:hover{background:var(--orange-2)}
.burger{display:none;margin-left:auto;background:none;border:0;color:#fff;cursor:pointer;padding:6px}
.burger svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round}

/* hero with the 3D scene */
.hero{position:relative;min-height:calc(100vh - 76px);min-height:calc(100svh - 76px);display:flex;align-items:center;
  background:radial-gradient(900px 520px at 80% 20%,rgba(70,177,225,.18),transparent 60%),
             radial-gradient(700px 420px at 10% 90%,rgba(233,113,50,.14),transparent 60%),
             linear-gradient(165deg,var(--navy) 0%,var(--deep) 100%);
  color:#fff;overflow:hidden;padding:64px 0}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero-grid{display:grid;grid-template-columns:minmax(0,600px) 1fr;gap:40px;align-items:center}
.hero h1{color:#fff;margin-bottom:.6em}
.hero h1 em{font-style:normal;color:var(--sky-2)}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.76rem;font-weight:700;letter-spacing:.17em;text-transform:uppercase;color:var(--sky-2);margin-bottom:1.2rem}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--orange)}
.lede{font-size:clamp(1.05rem,1.7vw,1.25rem);color:var(--on-dark);max-width:58ch;margin-bottom:2rem}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:2.2rem}
.chips span{font-size:.82rem;font-weight:600;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  padding:.45rem .85rem;border-radius:999px;display:inline-flex;align-items:center;gap:.45rem}
.chips span:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
.scroll-hint{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:2;color:var(--on-dark-dim);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:6px}
.scroll-hint i{width:1px;height:34px;background:linear-gradient(var(--sky-2),transparent);display:block;animation:drop 1.8s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* splash overlay (plays once per session) */
#splash{position:fixed;inset:0;z-index:100;background:transparent;pointer-events:none;display:flex;align-items:center;justify-content:center;
  transition:opacity .7s ease,visibility .7s}
#splash.hide{opacity:0;visibility:hidden}
#splash .word{position:absolute;left:50%;top:calc(50% + 118px);transform:translateX(-50%);text-align:center;opacity:0;
  transition:opacity .6s ease .1s;color:#fff;white-space:nowrap}
#splash.word-in .word{opacity:1}
#splash .word b{display:block;font-size:1.9rem;letter-spacing:.14em;font-weight:800}
#splash .word span{display:block;font-size:1.25rem;font-weight:400;letter-spacing:.02em;color:var(--on-dark)}
#splash .word small{display:block;margin-top:14px;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--sky-2)}
#splash .skip{pointer-events:auto;position:absolute;right:22px;bottom:18px;background:none;border:1px solid rgba(255,255,255,.25);color:var(--on-dark);
  border-radius:999px;padding:.4rem .9rem;font:600 .75rem/1 inherit;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}

body.splashing{background:var(--deep);overflow:hidden}
body.splashing header,body.splashing .hero .wrap,body.splashing .scroll-hint{opacity:0}
header,.hero .wrap,.scroll-hint{transition:opacity .8s ease}
body.splashing .hero{z-index:90;position:relative}
/* reveal on scroll */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}.rv.d5{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .scroll-hint i{animation:none}
  html{scroll-behavior:auto}
}

/* compare */
.compare{display:grid;gap:24px;grid-template-columns:1fr 1fr;margin-bottom:40px}
.col{border-radius:var(--radius);padding:32px 30px;border:1px solid var(--line)}
.col h3{font-size:.86rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:1.3em}
.col ul{list-style:none;margin:0;padding:0}
.col li{position:relative;padding-left:30px;margin-bottom:14px;font-size:.97rem;line-height:1.55}
.col li:last-child{margin-bottom:0}
.col li:before{position:absolute;left:0;top:0;font-size:1rem;font-weight:800;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;line-height:1}
.them{background:#fff}
.them h3{color:#94a3b8}
.them li{color:#64748b}
.them li:before{content:"×";color:#94a3b8;background:#f1f5f9}
.us{background:var(--navy);border-color:var(--navy);color:var(--on-dark)}
.us h3{color:var(--sky-2)}
.us li{color:#e3ecf7}
.us li b{color:#fff}
.us li:before{content:"✓";color:#fff;background:var(--orange);font-size:.8rem}
.pull{max-width:62ch;font-size:1.15rem;line-height:1.55;color:var(--ink);font-weight:600;border-left:3px solid var(--orange);padding-left:22px;margin:0}

/* method: AI in the middle */
.middle{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;gap:0;margin:8px 0 54px}
.node{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:28px 26px;position:relative}
.node.ai{background:linear-gradient(160deg,rgba(70,177,225,.22),rgba(70,177,225,.06));border-color:rgba(70,177,225,.45)}
.node .ic{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;background:rgba(255,255,255,.1)}
.node.ai .ic{background:var(--sky);}
.node .ic svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.node h3{margin-bottom:.35em}
.node p{font-size:.95rem;margin:0}
.node small{display:block;margin-top:14px;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--sky-2);font-weight:700}
.link{display:flex;align-items:center;justify-content:center;width:72px;position:relative}
.link:before{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:linear-gradient(90deg,var(--sky),var(--orange))}
.link i{position:relative;width:12px;height:12px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 6px rgba(233,113,50,.2);animation:ping 2.4s ease-out infinite}
.link.b i{animation-delay:1.2s}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(233,113,50,.45)}100%{box-shadow:0 0 0 16px rgba(233,113,50,0)}}
.rules{display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.rule{border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px 22px 20px;background:rgba(255,255,255,.04)}
.rule b{display:block;color:#fff;font-size:1rem;margin-bottom:.35rem}
.rule p{font-size:.92rem;margin:0}
.rule .n{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--orange);color:#fff;font-weight:800;font-size:.85rem;margin-bottom:14px}

/* lifecycle stepper */
.steps{display:grid;grid-template-columns:repeat(7,1fr);gap:14px;position:relative;margin-top:10px}
.steps:before{content:"";position:absolute;left:3%;right:3%;top:23px;height:2px;background:linear-gradient(90deg,var(--sky),var(--sky) 86%,var(--orange))}
.step{position:relative;padding-top:60px}
.step i{position:absolute;left:0;top:8px;width:32px;height:32px;border-radius:50%;background:var(--navy);border:2px solid var(--sky);color:#fff;font-style:normal;font-weight:800;font-size:.85rem;display:grid;place-items:center}
.step:last-child i{border-color:var(--orange);background:var(--orange)}
.step b{display:block;color:var(--ink);font-size:.98rem;margin-bottom:.25rem}
.step span{display:block;font-size:.84rem;color:var(--muted);line-height:1.45}
.step em{display:block;font-style:normal;font-size:.78rem;color:var(--sky-ink);font-weight:600;margin-top:.5rem}

/* cards */
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -18px rgba(15,39,71,.28);border-color:var(--sky)}
.ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;background:linear-gradient(140deg,var(--sky),var(--sky-ink))}
.ico svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.card:nth-child(3n+2) .ico{background:linear-gradient(140deg,var(--orange-2),var(--orange))}
.card p{font-size:.95rem;flex:1}
.more{font-weight:650;font-size:.9rem;margin-top:6px}
.more:after{content:" →"}

/* industries */
.inds{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.ind{border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;background:#fff}
.ind b{display:block;font-size:1.05rem;color:var(--ink);margin-bottom:.3rem}
.ind span{font-size:.9rem;color:var(--muted)}
.ind svg{width:26px;height:26px;stroke:var(--sky-ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-bottom:12px;display:block}

/* about */
.about{display:grid;gap:56px;grid-template-columns:1.1fr 1fr;align-items:start}
.seats{display:grid;gap:14px}
.seat{display:flex;gap:16px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:18px 18px;background:#fff}
.seat .ic{flex:none;width:42px;height:42px;border-radius:10px;background:var(--bg-alt);display:grid;place-items:center}
.seat .ic svg{width:22px;height:22px;stroke:var(--sky-ink);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.seat b{display:block;color:var(--ink)}
.seat span{font-size:.9rem;color:var(--muted)}
.quote{font-size:1.25rem;font-weight:600;color:var(--ink);line-height:1.45;margin:0 0 1.2rem}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.contact-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px}
.contact-card ul{list-style:none;margin:0;padding:0}
.contact-card li{display:flex;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.contact-card li:last-child{border-bottom:0}
.contact-card svg{width:20px;height:20px;stroke:var(--sky-2);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}
.contact-card a{color:#fff;font-weight:600}
.contact-card small{display:block;color:var(--on-dark-dim);font-size:.8rem}
.pnote{margin:1.6rem 0 0;max-width:62ch;font-size:.88rem;color:var(--on-dark-dim)}
.pnote a{color:var(--sky-2);text-decoration:underline}

/* footer */
footer{background:#071221;color:var(--on-dark-dim);padding:60px 0 30px;font-size:.9rem}
.fgrid{display:grid;gap:34px;grid-template-columns:2fr 1fr 1fr 1fr;margin-bottom:40px}
footer .brand svg{height:42px;width:auto;color:#fff;margin-bottom:14px;display:block}
footer h4{color:#fff;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:9px}
footer a{color:var(--on-dark-dim)}
footer a:hover{color:#fff}
.bottom{border-top:1px solid rgba(255,255,255,.09);padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.84rem}
.bottom a{color:inherit;text-decoration:underline}

/* privacy page */
.doc{max-width:760px}
.doc h1{font-size:clamp(2rem,4vw,2.8rem)}
.doc h2{font-size:1.3rem;margin-top:2.2rem}
.doc ul{padding-left:1.3rem}
.doc li{margin-bottom:.35rem}
.doc .meta{color:var(--muted);font-size:.9rem;margin-bottom:2rem}
.page-head{background:linear-gradient(165deg,var(--navy) 0%,var(--deep) 100%);color:#fff;padding:72px 0 56px}
.page-head h1{color:#fff;margin-bottom:.3em}
.page-head p{color:var(--on-dark);max-width:60ch;margin:0}

@media (max-width:1000px){
  .rules{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(4,1fr)}
  .steps:before{display:none}
  .middle{grid-template-columns:1fr;gap:0}
  .link{width:auto;height:56px}
  .link:before{left:50%;right:auto;top:0;bottom:0;width:2px;height:auto;background:linear-gradient(var(--sky),var(--orange))}
}
@media (max-width:880px){
  .nav ul{display:none;position:absolute;top:76px;left:0;right:0;background:var(--deep);flex-direction:column;align-items:stretch;gap:0;
    padding:10px 24px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav ul.open{display:flex}
  .nav ul>li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav ul>li:last-child{border-bottom:0;padding-top:18px}
  .burger{display:block}
  .hero{min-height:0;padding:56px 0 72px}
  .hero-grid{grid-template-columns:1fr}
  .hero-grid>div{padding-top:300px}
  .scroll-hint{display:none}
  .compare,.about,.contact-grid{grid-template-columns:1fr;gap:28px}
  .fgrid{grid-template-columns:1fr 1fr}
  section{padding:66px 0}
  .steps{grid-template-columns:1fr 1fr;gap:18px}
  .step{padding-top:0;padding-left:46px}
  .step i{top:0}
  #splash .word b{font-size:1.5rem}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
  .rules{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
}