/* ============================================================
   DAU.AI: design tokens
   ============================================================ */
:root{
  --canvas:#0B1330;
  --canvas-2:#101B3A;
  --panel:#172347;
  --text-primary:#F3EFE6;
  --text-secondary:#A6AFC4;
  --line:rgba(243,239,230,.14);
  --line-strong:rgba(243,239,230,.28);

  --stone:#EDE8DE;
  --stone-panel:#E3DCCC;
  --ink:#12192C;
  --ink-secondary:#5B6478;
  --line-onlight:rgba(18,25,44,.14);
  --line-onlight-strong:rgba(18,25,44,.30);

  --accent:#1C86FF;
  --accent-hover:#4FA0FF;
  --accent-muted:rgba(28,134,255,.16);
  --accent-ink:#14459E;

  --font-display:'Frank Ruhl Libre',serif;
  --font-body:'Heebo',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;

  --tshadow:0 1px 2px rgba(5,8,16,.95),0 3px 12px rgba(5,8,16,.78),0 10px 44px rgba(5,8,16,.8);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-in-out:cubic-bezier(.65,0,.35,1);
  --radius:14px;
  --radius-sm:9px;
  --container:1180px;
}

/* ============================================================
   Reset / base
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:auto}
html,body{overflow-x:hidden;overflow-x:clip;background:var(--canvas)}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text-primary);
  background:var(--canvas);
  line-height:1.6;
  direction:rtl;
  font-feature-settings:"tnum" 1;
}
img,video,svg{max-width:100%;display:block}
[hidden]{display:none !important}
a{color:inherit}
button{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:where(input,textarea,select){font:inherit;color:inherit}

[dir-ltr],.ltr{unicode-bidi:isolate;direction:ltr}

.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.skip-link{
  position:fixed;top:-100%;right:1rem;z-index:1000;
  background:var(--accent);color:#fff;padding:.8em 1.4em;border-radius:8px;
  transition:top .25s var(--ease-out);
  font-weight:600;
}
.skip-link:focus{top:1rem}

:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ============================================================
   Motion tokens & reduced-motion / pause infrastructure
   ============================================================ */
*{transition-timing-function:var(--ease-out)}

body.paused *,
body.paused *::before,
body.paused *::after{animation-play-state:paused !important}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
}
html.reduced-motion *, html.reduced-motion *::before, html.reduced-motion *::after{
  transition-delay:0s !important;
}

/* ============================================================
   Type scale & general text
   ============================================================ */
.kicker{
  font-family:var(--font-mono);
  font-size:.98rem;
  font-weight:500;
  letter-spacing:.03em;
  color:var(--accent);
  display:block;
  margin:0 0 .9em;
}
.section--stone .kicker{color:var(--accent-ink)}

h1,h2,h3,.font-display{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.9rem,1.4rem + 2.2vw,3rem);line-height:1.12;margin-bottom:.5em}
h3{font-size:clamp(1.25rem,1.05rem + .8vw,1.7rem);line-height:1.2}

.lede{
  font-size:clamp(1.05rem,1rem + .3vw,1.25rem);
  color:var(--text-secondary);
  max-width:52ch;
  line-height:1.65;
}

p.body-text{max-width:62ch;line-height:1.75}

/* ============================================================
   Layout helpers
   ============================================================ */
.container{width:min(100% - 2.6rem,var(--container));margin-inline:auto}
.section{position:relative;padding:clamp(4.5rem,4rem + 4vw,8rem) 0;overflow:clip}
.section--ink{background:var(--canvas);color:var(--text-primary)}
.section--ink-2{background:var(--canvas-2);color:var(--text-primary)}
.section--stone{background:var(--stone);color:var(--ink)}
.section--stone .text-secondary,.section--stone p{color:var(--ink-secondary)}

.section--photo{
  color:var(--text-primary);background-color:var(--canvas-2);
  background-size:cover;background-position:center;
}
.section--photo::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,var(--canvas) 0%,rgba(11,19,48,.55) 14%,rgba(11,19,48,.78) 60%,var(--canvas) 100%);
}
.section--photo .container{position:relative;z-index:1}

.section--glow{position:relative}
.section--glow::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(65% 55% at 12% 0%,rgba(28,134,255,.14),transparent 60%),
    radial-gradient(55% 45% at 100% 100%,rgba(28,134,255,.10),transparent 60%);
}
.section--glow .container{position:relative;z-index:1}
.section-head{max-width:60ch;margin-bottom:clamp(2.4rem,2rem + 2vw,4rem)}
.section-head.center{margin-inline:auto;text-align:center}

.row-baseline{display:flex;align-items:baseline;gap:.75em}

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  --pad-y:.95em;--pad-x:1.7em;
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:var(--pad-y) var(--pad-x);
  border-radius:999px;
  font-family:var(--font-body);font-weight:600;font-size:1rem;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .35s var(--ease-out),background-color .3s var(--ease-out),
             border-color .3s var(--ease-out),box-shadow .3s var(--ease-out),color .3s var(--ease-out);
  text-shadow:none;
  white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);box-shadow:0 10px 30px -10px var(--accent-muted)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:inherit}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-link{
  background:none;border:none;padding:0;color:inherit;font-weight:600;
  display:inline-flex;align-items:center;gap:.45em;
  border-bottom:1px solid currentColor;padding-bottom:.15em;border-radius:0;
}
.btn-link svg{transition:transform .3s var(--ease-out)}
.btn-link:hover svg{transform:translateX(-4px)}
.btn:disabled{opacity:.6;cursor:not-allowed}

@media (pointer:coarse){
  .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
  .btn-link{min-height:44px}
}

/* ============================================================
   Nav
   ============================================================ */
.site-nav{
  position:fixed;inset-inline:0;top:0;z-index:200;
  padding:.9rem 0;
  background:linear-gradient(to bottom,rgba(14,21,38,.86),rgba(14,21,38,0));
  backdrop-filter:blur(0px);
  transition:background-color .4s var(--ease-out),backdrop-filter .4s var(--ease-out),
             box-shadow .4s var(--ease-out),border-color .4s var(--ease-out);
  border-bottom:1px solid transparent;
}
.site-nav.is-scrolled{
  background:rgba(14,21,38,.72);
  backdrop-filter:blur(14px);
  border-color:var(--line);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.6);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.nav__logo{
  font-family:var(--font-mono);font-size:1.05rem;font-weight:500;letter-spacing:.04em;
  color:var(--text-primary);text-decoration:none;display:flex;align-items:center;gap:.5em;
}
.nav__logo .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.nav__logo .ai{color:var(--accent)}
.nav__links{display:flex;align-items:center;gap:2rem}
.nav__links a{
  text-decoration:none;font-size:.96rem;color:var(--text-secondary);position:relative;
  transition:color .3s var(--ease-out);
}
.nav__links a::after{
  content:"";position:absolute;bottom:-6px;right:0;width:0;height:1px;background:var(--accent);
  transition:width .35s var(--ease-out);
}
.nav__links a:hover{color:var(--text-primary)}
.nav__links a:hover::after{width:100%}
.nav__right{display:flex;align-items:center;gap:1rem}
.nav__cta{font-size:.92rem;padding:.7em 1.4em}
.nav__toggle{
  display:none;background:none;border:1px solid var(--line-strong);border-radius:10px;
  width:44px;height:44px;align-items:center;justify-content:center;
}
.nav__toggle span,.nav__toggle span::before,.nav__toggle span::after{
  content:"";display:block;width:18px;height:1.5px;background:var(--text-primary);position:relative;
  transition:transform .3s var(--ease-out),opacity .3s var(--ease-out);
}
.nav__toggle span::before{position:absolute;top:-6px}
.nav__toggle span::after{position:absolute;top:6px}
.site-nav.is-open .nav__toggle span{background:transparent}
.site-nav.is-open .nav__toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-nav.is-open .nav__toggle span::after{transform:translateY(-6px) rotate(-45deg)}

.nav__mobile{
  position:fixed;inset:0;z-index:190;background:var(--canvas);
  display:flex;flex-direction:column;justify-content:center;gap:2rem;padding:2rem;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .35s var(--ease-out),transform .35s var(--ease-out),visibility 0s linear .35s;
}
.nav__mobile.is-open{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.nav__mobile a{font-family:var(--font-display);font-size:2rem;text-decoration:none;color:var(--text-primary)}
.nav__mobile .btn{
  align-self:stretch;margin-top:1rem;font-family:var(--font-body);
  font-size:1rem;white-space:normal;text-align:center;
}

@media (max-width:860px){
  .nav__links{display:none}
  .nav__toggle{display:flex}
  .nav__right .btn-primary.nav__cta{display:none}
}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;height:420vh}
.hero__pin{position:sticky;top:0;height:100vh;overflow:hidden}
.hero__stage{position:absolute;inset:0}

.hero__scene{
  position:absolute;inset:0;background:var(--canvas);
  background-image:url("../img/hero-poster.jpg");
  background-size:cover;background-position:center;
}
.hero__scene::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 70% at 50% 12%,rgba(28,134,255,.10),transparent 60%),
    linear-gradient(180deg,rgba(8,14,32,.22) 0%,rgba(8,14,32,0) 30%,rgba(8,14,32,.15) 75%,rgba(6,10,24,.5) 100%);
}
.hero__grain{position:absolute;inset:0;opacity:.045;mix-blend-mode:overlay;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.hero__video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity 1s var(--ease-out);
  will-change:transform;transform:translateZ(0);
}
.hero__stage.video-ready .hero__video{opacity:1}
.hero__stage.video-ready .hero__scene{opacity:0;transition:opacity 1.2s var(--ease-out)}
.hero__stage.video-failed .hero__video{display:none}

.hero__scrim{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 120% 90% at 50% 45%,rgba(9,12,20,0) 30%,rgba(9,12,20,.62) 100%);
}

.hero__loader{
  position:absolute;bottom:2.4rem;left:50%;transform:translateX(-50%);
  color:var(--text-secondary);width:48px;height:48px;
  opacity:1;transition:opacity .5s var(--ease-out);
}
.hero__stage.video-ready .hero__loader,.hero__stage.video-failed .hero__loader{opacity:0;pointer-events:none}
.hero__loader svg{width:100%;height:100%;transform:rotate(-90deg)}
.hero__loader circle{transition:stroke-dashoffset .15s linear}

.hero__scrollcue{
  position:absolute;bottom:2.6rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5em;
  color:var(--text-secondary);font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  opacity:0;transition:opacity .5s var(--ease-out) .3s;
}
.hero__scrollcue.is-visible{opacity:1}
.hero__scrollcue svg{animation:cue-bob 2.2s ease-in-out infinite}
@keyframes cue-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

.hero__bands{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:0 1.5rem;pointer-events:none;
}
.band{
  position:absolute;inset-inline:0;margin-inline:auto;max-width:min(90vw,760px);
  text-align:center;opacity:0;pointer-events:none;
}
.band::before{
  content:"";position:absolute;inset:-6% -8%;pointer-events:none;z-index:-1;
  opacity:calc(.35 + .65*var(--k,1));
  background:radial-gradient(ellipse 78% 66% at 50% 50%,rgba(6,9,16,.68) 0%,rgba(6,9,16,.46) 46%,rgba(6,9,16,0) 76%);
}
.band.is-active{pointer-events:auto}
.band .eyebrow{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;color:#BFD4FF;
  text-shadow:var(--tshadow);margin-bottom:1em;opacity:.85;
}
.band .headline,.band p{text-shadow:var(--tshadow)}
.band .headline{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(1.9rem,1.3rem + 3.4vw,3.6rem);line-height:1.14;color:#fff;
  margin-bottom:.5em;
}
.band p.sub{
  font-size:clamp(1rem,.92rem + .5vw,1.2rem);color:var(--text-primary);
  max-width:44ch;margin:0 auto 1.6em;line-height:1.6;
}
.band .band__cta{display:flex;align-items:center;justify-content:center;gap:1.4em;flex-wrap:wrap}
.band .band__cta .btn-link{color:#fff}

.band[data-band="2"] .headline,.band[data-band="4"] .headline{font-size:clamp(1.7rem,1.2rem + 3vw,3rem)}

.band .halves{
  display:flex;justify-content:center;align-items:baseline;gap:.5em;flex-wrap:wrap;
  font-family:var(--font-display);font-weight:700;color:#fff;
  font-size:clamp(1.4rem,1.05rem + 2vw,2.3rem);
}

.band .word{display:inline-block;overflow:clip;padding:0 .02em}
.band .char{display:inline-block;will-change:transform,opacity}

/* band 1: word rise into staged settle */
.band[data-band="1"] .headline .char{
  --kc:clamp(0,(var(--k,0) - var(--th,0))*2.6,1);
  opacity:var(--kc);
  transform:translateY(calc((1 - var(--kc))*.5em));
}
.band[data-band="1"] .sub{
  --ks:clamp(0,(var(--k,0) - 0.5)*4,1);
  opacity:var(--ks);transform:translateY(calc((1 - var(--ks))*10px));
}
.band[data-band="1"] .band__cta{
  --kb:clamp(0,(var(--k,0) - 0.72)*5,1);
  opacity:var(--kb);transform:translateY(calc((1 - var(--kb))*10px));
}

/* band 2: word punch with overshoot */
.band[data-band="2"] .word{
  --kc:clamp(0,(var(--k,0) - var(--th,0))*3,1);
  --ks:clamp(0,(var(--k,0) - var(--th,0) - .1)*3.2,1);
  opacity:var(--kc);
  transform:scale(calc(0.6 + .52*var(--kc) - .12*var(--ks)));
  display:inline-block;
}

/* band 3: halves parting, echoes the pillars opening apart in the footage */
.band[data-band="3"] .half{
  --kc:clamp(0,var(--k,0)*2.2,1);
  opacity:var(--kc);
  text-shadow:var(--tshadow);
}
.band[data-band="3"] .half--a{transform:translateX(calc((1 - var(--kc)) * -10vw))}
.band[data-band="3"] .half--b{transform:translateX(calc((1 - var(--kc)) * 10vw))}

/* band 4: blur to sharp */
.band[data-band="4"] .blur-stack{position:relative;display:inline-block}
.band[data-band="4"] .blur-stack .soft{
  position:absolute;inset:0;filter:blur(10px);
  opacity:calc(1 - var(--k,0));
}
.band[data-band="4"] .blur-stack .sharp{opacity:var(--k,0)}
.band[data-band="4"] .sub,.band[data-band="4"] .band__cta{
  --ks:clamp(0,(var(--k,0) - .55)*4,1);
  opacity:var(--ks);transform:translateY(calc((1 - var(--ks))*8px));
}

/* ============================================================
   Static hero (five-gate fallback)
   ============================================================ */
.hero-static{display:none;position:relative;min-height:100svh;overflow:clip}
.hero-static .hero__scene{position:absolute;inset:0}
.hero-static__content{
  position:relative;z-index:2;min-height:100svh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;padding:6rem 1.4rem 3rem;
}
.hero-static__content .eyebrow{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.16em;color:#BFD4FF;margin-bottom:1em}
.hero-static__content h1{
  font-family:var(--font-display);font-weight:700;color:#fff;text-shadow:var(--tshadow);
  font-size:clamp(2rem,1.5rem + 3.4vw,3.2rem);line-height:1.15;max-width:16ch;margin-bottom:.55em;
}
.hero-static__content p{
  color:var(--text-primary);text-shadow:var(--tshadow);max-width:38ch;
  font-size:1.05rem;line-height:1.6;margin-bottom:1.8em;
}
.hero-static__content .band__cta{display:flex;gap:1.4em;flex-wrap:wrap;align-items:center;justify-content:center}
.hero-static__content .btn-link{color:#fff}

@media (max-width:720px),
       (orientation:portrait) and (max-width:1024px),
       (orientation:portrait) and (pointer:coarse),
       (orientation:landscape) and (pointer:coarse) and (max-height:560px),
       (prefers-reduced-motion:reduce){
  .hero{display:none}
  .hero-static{display:block}
}

@media (max-height:560px){
  .hero .hero__scrollcue,.hero .hero__loader{display:none}
}

/* ============================================================
   Connector line (brand signature, self-drawing SVG)
   ============================================================ */
.connector{position:relative;pointer-events:none}
.connector svg{width:100%;height:100%;overflow:visible}
.connector path{
  fill:none;stroke:var(--accent);stroke-width:1.5;
  stroke-dasharray:1;stroke-dashoffset:1;
  vector-effect:non-scaling-stroke;
  opacity:0;
  transition:stroke-dashoffset 1.7s var(--ease-out),opacity .6s var(--ease-out);
}
.connector path.is-drawn{stroke-dashoffset:0;opacity:.55}
.connector--onlight path{stroke:var(--accent-ink)}
.connector--onlight path.is-drawn{opacity:.45}

/* ============================================================
   Scroll-reveal choreography (generic sections)
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.reveal-group .reveal:nth-child(1){transition-delay:0ms}
.reveal-group .reveal:nth-child(2){transition-delay:90ms}
.reveal-group .reveal:nth-child(3){transition-delay:180ms}
.reveal-group .reveal:nth-child(4){transition-delay:270ms}
.reveal-group.done .reveal{transition-delay:0ms !important}

/* ============================================================
   Diagnostic tool
   ============================================================ */
.diagnostic{
  background:var(--panel);border:1px solid var(--line);border-radius:20px;
  padding:clamp(1.6rem,1.2rem + 2vw,3rem);position:relative;overflow:clip;
}
.diagnostic::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(80% 60% at 100% 0%,rgba(62,124,255,.12),transparent 60%);
}
.diagnostic__top{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}
.diagnostic__progress{display:flex;align-items:center;gap:.5rem}
.diagnostic__progress .dot{
  width:8px;height:8px;border-radius:50%;background:var(--line-strong);transition:background .35s var(--ease-out),transform .35s var(--ease-out);
}
.diagnostic__progress .dot.is-active{background:var(--accent);transform:scale(1.3)}
.diagnostic__progress .dot.is-done{background:var(--accent)}
.diagnostic__count{font-family:var(--font-mono);font-size:.82rem;color:var(--text-secondary)}

.diagnostic__panel{display:none}
.diagnostic__panel.is-active{display:block;animation:panel-in .5s var(--ease-out)}
@keyframes panel-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.diagnostic__question{font-family:var(--font-display);font-size:clamp(1.25rem,1.05rem + 1vw,1.7rem);margin-bottom:1.4rem}
.diagnostic__options{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.diagnostic__option{
  text-align:start;background:var(--canvas-2);border:1px solid var(--line);border-radius:12px;
  padding:1.1rem 1.3rem;cursor:pointer;transition:border-color .3s var(--ease-out),background-color .3s var(--ease-out),transform .3s var(--ease-out);
  display:flex;flex-direction:column;gap:.3rem;
}
.diagnostic__option:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.diagnostic__option.is-selected{border-color:var(--accent);background:linear-gradient(180deg,rgba(62,124,255,.14),rgba(62,124,255,.05))}
.diagnostic__option .label{font-weight:600}
.diagnostic__option .hint{font-size:.86rem;color:var(--text-secondary)}

.diagnostic__controls{display:flex;align-items:center;justify-content:space-between;margin-top:2rem;gap:1rem}
.diagnostic__controls .spacer{flex:1}

.diagnostic__result{display:none}
.diagnostic__result.is-active{display:block;animation:panel-in .6s var(--ease-out)}
.diagnostic__result .badge{
  display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-mono);font-size:.76rem;
  letter-spacing:.1em;color:#BFD4FF;background:rgba(62,124,255,.12);border:1px solid var(--accent-muted);
  padding:.4em .9em;border-radius:999px;margin-bottom:1.2rem;
}
.diagnostic__result h3{font-family:var(--font-display);font-size:clamp(1.4rem,1.1rem + 1.4vw,2rem);margin-bottom:.7rem}
.diagnostic__result .why{color:var(--text-secondary);max-width:56ch;line-height:1.7;margin-bottom:1.6rem}
.diagnostic__components{display:grid;gap:.75rem;margin-bottom:2rem}
.diagnostic__component{
  display:flex;gap:.9rem;align-items:flex-start;background:var(--canvas-2);
  border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;
}
.diagnostic__component svg{flex:none;margin-top:.15em;color:var(--accent)}
.diagnostic__result-actions{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.diagnostic__restart{color:var(--text-secondary);font-size:.9rem;background:none;border:none;cursor:pointer;text-decoration:underline;text-underline-offset:3px}

@media (pointer:coarse){.diagnostic__option{min-height:44px}}

/* ============================================================
   Services
   ============================================================ */
.services__list{display:flex;flex-direction:column;gap:clamp(2.5rem,2rem + 2vw,4.5rem)}
.service{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.8rem,1.4rem + 2vw,4rem);align-items:center;
}
.service:nth-child(even){direction:ltr}
.service:nth-child(even) > *{direction:rtl}
.service__num{font-family:var(--font-mono);color:var(--accent);font-size:.85rem;letter-spacing:.1em;margin-bottom:.8em;display:block}
.service__who{color:var(--text-secondary);font-size:.95rem;margin-bottom:.6em}
.service__problem{margin:1rem 0;line-height:1.75;max-width:52ch}
.service__get{
  border-inline-start:2px solid var(--accent-muted);padding-inline-start:1rem;
  margin:1.1rem 0;line-height:1.75;max-width:52ch;
}
.service__example{
  margin-top:1.2rem;font-size:.92rem;color:var(--text-secondary);
  background:var(--canvas-2);border:1px solid var(--line);border-radius:10px;padding:.9rem 1.1rem;
}
.service__visual{
  position:relative;aspect-ratio:4/3;border-radius:18px;overflow:clip;
  background:linear-gradient(155deg,var(--canvas-2),var(--panel));border:1px solid var(--line);
}
.service__visual svg{position:absolute;inset:0;width:100%;height:100%}
.service__visual::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 50% at 30% 20%,rgba(62,124,255,.18),transparent 65%);
}

@media (max-width:820px){
  .service,.service:nth-child(even){grid-template-columns:1fr;direction:rtl}
  .service__visual{order:-1;aspect-ratio:16/10}
}

/* ============================================================
   Process toggle (today / after)
   ============================================================ */
.process{
  background:rgba(23,35,71,.78);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:20px;padding:clamp(1.6rem,1.2rem + 2vw,3rem);
}
.process__head{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;margin-bottom:2.2rem}
.switch{
  --w:64px;--h:34px;
  display:inline-flex;align-items:center;gap:.9rem;background:none;border:none;cursor:pointer;padding:.2rem;
}
.switch__track{
  width:var(--w);height:var(--h);border-radius:999px;background:var(--canvas-2);
  border:1px solid var(--line-strong);position:relative;transition:background-color .35s var(--ease-out);
  flex:none;
}
.switch[aria-checked="true"] .switch__track{background:var(--accent)}
.switch__thumb{
  position:absolute;top:3px;right:3px;width:calc(var(--h) - 8px);height:calc(var(--h) - 8px);
  border-radius:50%;background:#fff;transition:transform .35s var(--ease-out);
}
.switch[aria-checked="true"] .switch__thumb{transform:translateX(calc(-1 * (var(--w) - var(--h))))}
.switch__labels{display:flex;flex-direction:column;align-items:flex-start;gap:.15rem}
.switch__labels .state{font-weight:700;font-family:var(--font-display);font-size:1.15rem}
.switch__labels .hint{font-size:.82rem;color:var(--text-secondary)}

.flow{display:flex;flex-direction:column;gap:0}
.flow__node{
  display:flex;gap:1.1rem;align-items:flex-start;padding:1.1rem 0;position:relative;
}
.flow__node:not(:last-child)::after{
  content:"";position:absolute;right:19px;top:52px;bottom:-4px;width:1px;
  background:var(--line-strong);
}
.flow__dot{
  flex:none;width:40px;height:40px;border-radius:50%;background:var(--canvas-2);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:.85rem;
  transition:background-color .4s var(--ease-out),border-color .4s var(--ease-out),color .4s var(--ease-out);
  z-index:1;
}
.flow__body{padding-top:.35rem}
.flow__title{font-weight:600;margin-bottom:.2rem}
.flow__desc{color:var(--text-secondary);font-size:.92rem;max-width:46ch}
.flow__node.is-good .flow__dot{background:var(--accent);border-color:var(--accent);color:#fff}
.flow__node[data-state]{
  opacity:0;max-height:0;overflow:hidden;padding:0;pointer-events:none;
  transition:opacity .4s var(--ease-out),max-height .4s var(--ease-out),padding .4s var(--ease-out);
}
.flow__node[data-state].is-shown{opacity:1;max-height:220px;padding:1.1rem 0;pointer-events:auto}
.flow__node[data-state="today"]{color:var(--text-secondary)}

.process__note{
  margin-top:1.8rem;font-size:.85rem;color:var(--text-secondary);
  border-top:1px solid var(--line);padding-top:1.2rem;max-width:60ch;line-height:1.6;
}

/* ============================================================
   Case studies
   ============================================================ */
.featured-project{
  display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(1.6rem,1.2rem + 2vw,3rem);
  align-items:center;margin-bottom:clamp(2.2rem,1.8rem + 2vw,3.5rem);
  background:var(--canvas-2);border:1px solid var(--line);border-radius:20px;
  padding:clamp(1.2rem,1rem + 1.2vw,1.8rem);overflow:clip;
}
.featured-project__media{aspect-ratio:4/3;border-radius:14px;overflow:clip;background:var(--panel)}
.featured-project__media img{width:100%;height:100%;object-fit:cover;display:block}
.featured-project__tag{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;
  color:#BFF3E0;background:rgba(76,201,154,.12);border:1px solid rgba(76,201,154,.4);
  padding:.35em .9em .35em .7em;border-radius:999px;margin-bottom:1rem;
}
.featured-project__tag .dot{width:6px;height:6px;border-radius:50%;background:#4CC99A;flex:none;animation:glow 2.4s ease-in-out infinite;animation-play-state:paused}
.featured-project__tag.is-live .dot{animation-play-state:running}
.featured-project__body h3{margin-bottom:.6rem}
.featured-project__body p{color:var(--text-secondary);line-height:1.7;margin-bottom:1.2rem;max-width:46ch}
@media (max-width:820px){.featured-project{grid-template-columns:1fr}.featured-project__media{order:-1;aspect-ratio:16/10}}

.case-grid{display:grid;gap:1.6rem;grid-template-columns:repeat(3,1fr)}
@media (max-width:980px){.case-grid{grid-template-columns:1fr}}
.case-card{
  background:var(--canvas-2);border:1px solid var(--line);border-radius:18px;
  display:flex;flex-direction:column;overflow:clip;
}
.case-card__media{aspect-ratio:4/3;overflow:clip;background:var(--panel)}
.case-card__media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease-out)}
.case-card:hover .case-card__media img{transform:scale(1.045)}
.case-card__body{padding:1.6rem;display:flex;flex-direction:column;flex:1}
.case-card__tag{
  align-self:flex-start;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;
  color:var(--text-secondary);border:1px solid var(--line-strong);border-radius:999px;padding:.3em .8em;margin-bottom:1rem;
}
.case-card h3{margin-bottom:.7rem}
.case-card p{color:var(--text-secondary);line-height:1.65;margin-bottom:.4rem}
.case-card details{margin-top:1rem;border-top:1px solid var(--line);padding-top:1rem}
.case-card summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
  font-weight:600;font-size:.94rem;color:var(--accent);
}
.case-card summary::-webkit-details-marker{display:none}
.case-card summary .plus{transition:transform .3s var(--ease-out);flex:none}
.case-card details[open] summary .plus{transform:rotate(45deg)}
.case-card__detail{padding-top:.9rem;font-size:.92rem;line-height:1.7;color:var(--text-secondary)}
.case-card__detail dt{color:var(--text-primary);font-weight:600;margin-top:.7rem}
.case-card__detail dt:first-child{margin-top:0}
.case-card__detail dd{margin:0}

/* ============================================================
   Steps (how we work)
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
@media (max-width:980px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding-inline-start:0}
.step__num{
  font-family:var(--font-mono);font-size:.85rem;color:var(--accent-ink);
  display:flex;align-items:center;gap:.6rem;margin-bottom:1rem;
}
.step__num::after{content:"";flex:1;height:1px;background:var(--line-onlight)}
.step h3{margin-bottom:.5rem;font-size:1.2rem}
.step p{color:var(--ink-secondary);font-size:.92rem;line-height:1.7}

/* ============================================================
   About
   ============================================================ */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,1.6rem + 2vw,4.5rem);align-items:center}
@media (max-width:860px){.about{grid-template-columns:1fr}}
.about__mark{
  position:relative;aspect-ratio:3/4;max-width:340px;border-radius:20px;overflow:clip;
  background:linear-gradient(160deg,var(--canvas-2),var(--panel));border:1px solid var(--line);
}
.about__mark img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.94) contrast(1.03)}
.about__mark::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 50% at 80% 8%,rgba(28,134,255,.24),transparent 60%),
    linear-gradient(180deg,transparent 60%,rgba(11,19,48,.6) 100%),
    linear-gradient(90deg,rgba(11,19,48,.28) 0%,transparent 18%);
}
.about h2{margin-bottom:1rem}
.about p{margin-bottom:1.1rem;max-width:60ch;line-height:1.8}
.about__name{color:var(--accent);font-weight:600}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:1.4rem 0;display:flex;align-items:center;justify-content:space-between;
  gap:1.2rem;font-weight:600;font-size:1.05rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{flex:none;transition:transform .3s var(--ease-out);color:var(--accent)}
.faq-item details[open] summary .plus,.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .a{padding:0 0 1.5rem;max-width:66ch;color:var(--text-secondary);line-height:1.75}

/* ============================================================
   Contact
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(2rem,1.6rem + 2vw,4rem)}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-aside p{color:var(--text-secondary);line-height:1.8;max-width:44ch;margin-bottom:1.5rem}
.contact-aside .whatsapp-cta{margin-top:1rem}

.diagnosis-chip{
  display:none;background:var(--canvas-2);border:1px solid var(--accent-muted);border-radius:14px;
  padding:1.1rem 1.3rem;margin-bottom:1.6rem;
}
.diagnosis-chip.is-active{display:block}
.diagnosis-chip__head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.5rem}
.diagnosis-chip__head strong{font-size:.9rem}
.diagnosis-chip__head button{background:none;border:none;color:var(--accent);cursor:pointer;font-size:.85rem;text-decoration:underline;text-underline-offset:3px}
.diagnosis-chip p{margin:0;color:var(--text-secondary);font-size:.9rem;line-height:1.6}

.form{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:clamp(1.6rem,1.2rem + 2vw,2.6rem)}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media (max-width:560px){.form__row{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.1rem}
.field label{font-size:.88rem;color:var(--text-secondary)}
.field .req{color:var(--accent)}
.field input[type="text"],.field input[type="email"],.field input[type="tel"],.field textarea{
  background:var(--canvas-2);border:1px solid var(--line-strong);border-radius:10px;
  padding:.85em 1em;color:var(--text-primary);font-family:var(--font-body);font-size:1rem;
  transition:border-color .3s var(--ease-out),box-shadow .3s var(--ease-out);
}
.field input:hover,.field textarea:hover{border-color:var(--line-strong)}
.field input:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted)}
.field textarea{resize:vertical;min-height:110px;line-height:1.6}
.field.has-error input,.field.has-error textarea{border-color:#FF8A8A}
.field__error{font-size:.8rem;color:#FF9C9C;min-height:1.1em}

.radio-group{display:flex;gap:.7rem;flex-wrap:wrap;margin-bottom:1.1rem}
.radio-pill{position:relative}
.radio-pill input{position:absolute;opacity:0;inset:0;cursor:pointer;width:100%;height:100%}
.radio-pill span{
  display:inline-flex;align-items:center;padding:.6em 1.2em;border-radius:999px;
  border:1px solid var(--line-strong);font-size:.9rem;transition:all .3s var(--ease-out);
}
.radio-pill input:checked + span{border-color:var(--accent);background:var(--accent-muted);color:#fff}
.radio-pill input:focus-visible + span{outline:2.5px solid var(--accent);outline-offset:2px}

.honeypot{position:absolute !important;left:-9999px !important;width:1px;height:1px;overflow:hidden}

.form__submit{display:flex;align-items:center;gap:1rem;margin-top:.4rem;flex-wrap:wrap}
.form__spinner{
  width:18px;height:18px;border-radius:50%;border:2.5px solid rgba(255,255,255,.35);
  border-top-color:#fff;display:none;animation:spin .8s linear infinite;
}
.form.is-loading .form__spinner{display:inline-block}
.form.is-loading .btn-primary .btn-label{opacity:.7}
@keyframes spin{to{transform:rotate(360deg)}}

.form__state{
  display:none;border-radius:12px;padding:1rem 1.2rem;font-size:.92rem;line-height:1.6;margin-top:1rem;
}
.form__state.is-active{display:block}
.form__state--success{background:rgba(76,201,154,.12);border:1px solid rgba(76,201,154,.4);color:#BFF3E0}
.form__state--error{background:rgba(255,120,120,.1);border:1px solid rgba(255,120,120,.4);color:#FFD3D3}
.form__state--dev{background:rgba(62,124,255,.1);border:1px dashed var(--accent-muted);color:var(--text-secondary)}
.form__state--dev strong{color:var(--text-primary)}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{background:var(--canvas-2);border-top:1px solid var(--line);padding:3.5rem 0 2rem}
.footer__top{display:flex;justify-content:space-between;gap:2.5rem;flex-wrap:wrap;margin-bottom:2.5rem}
.footer__brand .nav__logo{margin-bottom:.8rem}
.footer__brand p{color:var(--text-secondary);max-width:34ch;font-size:.92rem;line-height:1.7}
.footer__links{display:flex;gap:3rem;flex-wrap:wrap}
.footer__col h4{font-size:.82rem;color:var(--text-secondary);margin-bottom:.9rem;font-weight:600}
.footer__col ul{display:flex;flex-direction:column;gap:.6rem}
.footer__col a{text-decoration:none;font-size:.92rem;color:var(--text-primary);transition:color .3s var(--ease-out)}
.footer__col a:hover{color:var(--accent)}
.footer__bottom{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:1.6rem;font-size:.82rem;color:var(--text-secondary);
}
.footer__bottom .ltr{direction:ltr}

/* ============================================================
   Living elements (whisper-level)
   ============================================================ */
.glow-pulse{position:relative}
.glow-pulse::before{
  content:"";position:absolute;inset:-30%;z-index:-1;border-radius:inherit;
  background:radial-gradient(circle,var(--accent-muted),transparent 65%);
  opacity:.5;animation:glow 5s ease-in-out infinite;animation-delay:-1.6s;
  animation-play-state:paused;
}
.glow-pulse.is-live::before{animation-play-state:running}
@keyframes glow{0%,100%{opacity:.35;transform:scale(.94)}50%{opacity:.7;transform:scale(1.05)}}

/* anchor offset under the fixed nav */
[id]{scroll-margin-top:88px}

/* ============================================================
   Back to top
   ============================================================ */
.back-to-top{
  position:fixed;bottom:1.6rem;left:1.6rem;z-index:150;
  width:46px;height:46px;border-radius:50%;padding:0;
  background:var(--accent);color:#fff;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .35s var(--ease-out),transform .35s var(--ease-out),
             visibility 0s linear .35s,background-color .3s var(--ease-out);
  box-shadow:0 10px 30px -10px rgba(5,8,16,.6);
}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.back-to-top:hover{background:var(--accent-hover)}
@media (pointer:coarse){.back-to-top{width:48px;height:48px}}
@media print{.back-to-top{display:none}}

/* ============================================================
   Utility & misc
   ============================================================ */
.mt-0{margin-top:0}
.center-text{text-align:center}
::selection{background:var(--accent);color:#fff}

@media (max-width:600px){
  .container{width:min(100% - 2rem,var(--container))}
}