/* ==========================================================================
   Atomia Oy — single page site
   1. Tokens   2. Base   3. Components   4. Header   5. Hero
   6. Pinned crossover   7. Sections   8. Footer   9. Responsive
   ========================================================================== */

/* 1. TOKENS ============================================================== */
:root{
  --bg:            #07080c;
  --bg-2:          #0b0d14;
  --bg-3:          #10131c;
  --line:          rgba(255,255,255,.09);
  --line-2:        rgba(255,255,255,.16);
  --ink:           #eef1f7;
  --ink-2:         #a7aec0;
  --ink-3:         #6e7689;

  --code:          #54d6ff;   /* software accent */
  --code-2:        #6f8cff;
  --stage:         #ff4d92;   /* live events accent */
  --stage-2:       #ffab4d;

  /* --mix is driven by scroll: 0 = software world, 1 = stage world */
  --mix: 0;
  --accent:   color-mix(in oklab, var(--code)   , var(--stage)   calc(var(--mix) * 100%));
  --accent-2: color-mix(in oklab, var(--code-2) , var(--stage-2) calc(var(--mix) * 100%));

  --font:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --disp:  "Space Grotesk", var(--font);
  --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1240px;
  --pad:  clamp(20px, 5vw, 56px);
  --r:    14px;
  --r-lg: 22px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --slant: 6;            /* diagonal seam, in % of viewport width */
  --wx: 112%;            /* seam x position, set by JS */
  --p: 0;                /* crossover progress 0..1, set by JS */
}

/* 2. BASE ================================================================ */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:400 17px/1.65 var(--font);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.is-locked{ overflow:hidden; }
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
button,input,textarea,select{ font:inherit; color:inherit; }
h1,h2,h3{ font-family:var(--disp); font-weight:600; letter-spacing:-.025em; line-height:1.08; margin:0; }
p{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
::selection{ background:var(--accent); color:#05060a; }

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:4px; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }

.skip{
  position:fixed; top:10px; left:10px; z-index:200; padding:10px 16px; border-radius:8px;
  background:var(--accent); color:#05060a; font-weight:600; transform:translateY(-160%);
  transition:transform .25s var(--ease);
}
.skip:focus{ transform:none; }

.grad{
  background:linear-gradient(100deg, var(--code) 0%, var(--code-2) 34%, var(--stage) 72%, var(--stage-2) 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.eyebrow{
  font:500 12px/1 var(--mono); letter-spacing:.22em; text-transform:uppercase;
  color:var(--ink-3); display:inline-flex; align-items:center; gap:10px; margin:0 0 22px;
}
.eyebrow .dot,.pane__kicker .dot{
  width:7px; height:7px; border-radius:50%; background:var(--accent);
  box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal[data-d="1"]{ transition-delay:.09s } .reveal[data-d="2"]{ transition-delay:.18s }
.reveal[data-d="3"]{ transition-delay:.27s } .reveal[data-d="4"]{ transition-delay:.36s }
.reveal.is-in{ opacity:1; transform:none; }

/* 3. COMPONENTS ========================================================== */
.btn{
  --b: var(--accent);
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 26px; border-radius:100px; border:1px solid var(--line-2);
  font:600 15px/1 var(--font); letter-spacing:-.01em; cursor:pointer;
  transition:transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease);
}
.btn__ico{ font-family:var(--mono); font-size:13px; opacity:.75; }
.btn--solid{
  background:var(--b); border-color:transparent; color:#05060a;
  box-shadow:0 10px 34px -12px color-mix(in srgb, var(--b) 70%, transparent);
}
.btn--solid:hover{ transform:translateY(-2px); box-shadow:0 18px 44px -14px color-mix(in srgb, var(--b) 85%, transparent); }
.btn--ghost{ background:rgba(255,255,255,.03); color:var(--ink); backdrop-filter:blur(8px); }
.btn--ghost:hover{ transform:translateY(-2px); border-color:var(--b); color:#fff; background:color-mix(in srgb, var(--b) 12%, transparent); }
.btn--sm{ padding:11px 20px; font-size:14px; }
.btn--full{ width:100%; }

/* 4. HEADER ============================================================== */
.nav{
  position:fixed; inset:0 0 auto; z-index:100;
  transition:background .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter:blur(18px) saturate(140%); border-bottom-color:var(--line);
}
.nav__inner{
  max-width:var(--wrap); margin-inline:auto; padding:16px var(--pad);
  display:flex; align-items:center; gap:28px;
}
.brand{ display:inline-flex; align-items:center; gap:11px; font-family:var(--disp); font-weight:600; font-size:19px; letter-spacing:-.02em; flex:none; }
.brand__mark{ color:var(--accent); width:30px; display:block; transition:color .4s linear; }
.brand__mark svg{ width:100%; display:block; }
.brand__oy{ color:var(--ink-3); font-weight:400; }

.nav__links{ display:flex; gap:4px; margin-left:auto; }
.nav__links a{
  position:relative; padding:9px 14px; border-radius:8px; font-size:15px; color:var(--ink-2);
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav__links a:hover{ color:var(--ink); background:rgba(255,255,255,.05); }
.nav__links a.is-active{ color:var(--ink); }
.nav__links a.is-active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:2px; height:2px;
  border-radius:2px; background:var(--accent);
}

/* Language switcher: plain text, no chrome — it should read as a caption,
   not compete with the navigation. */
.lang{ display:flex; align-items:center; gap:7px; margin-left:26px; flex:none; }
.lang button{
  padding:4px 2px; background:none; border:0; cursor:pointer;
  font:500 12px/1 var(--mono); letter-spacing:.14em; color:var(--ink-3);
  border-bottom:1px solid transparent;
  transition:color .25s var(--ease), border-color .25s var(--ease);
}
.lang button:hover{ color:var(--ink); }
.lang button.is-on{ color:var(--ink); border-bottom-color:var(--accent); }
.lang > span{ font:400 12px/1 var(--mono); color:var(--ink-3); opacity:.4; }

.nav__burger{
  display:none; margin-left:16px;
  width:42px; height:42px; border:1px solid var(--line); border-radius:10px;
  background:rgba(255,255,255,.03); cursor:pointer; padding:0;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav__burger span{ width:17px; height:1.6px; background:var(--ink); border-radius:2px; transition:transform .3s var(--ease), opacity .3s var(--ease); }
.nav__burger[aria-expanded="true"] span:first-child{ transform:translateY(3.3px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:last-child{ transform:translateY(-3.3px) rotate(-45deg); }

/* 5. HERO ================================================================ */
.hero{
  position:relative; min-height:100svh; display:flex; align-items:center;
  padding:150px 0 110px; overflow:hidden; isolation:isolate;
}
.hero__grid{
  position:absolute; inset:0; z-index:-3; opacity:.5;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:74px 74px;
  mask-image:radial-gradient(ellipse 100% 70% at 50% 42%, #000 20%, transparent 78%);
}
.hero__glow{
  position:absolute; inset:-25% -10% auto; height:120%; z-index:-4; pointer-events:none;
  background:
    radial-gradient(46% 42% at 22% 28%, color-mix(in srgb,var(--code) 26%,transparent), transparent 68%),
    radial-gradient(44% 40% at 80% 66%, color-mix(in srgb,var(--stage) 22%,transparent), transparent 68%);
  filter:blur(24px);
  animation:drift 22s ease-in-out infinite alternate;
}
@keyframes drift{ to{ transform:translate3d(-3%,2%,0) scale(1.08); } }
.hero__wave{ position:absolute; inset:auto 0 0; width:100%; height:52%; z-index:-2; opacity:.85; }
.hero::after{
  content:""; position:absolute; inset:auto 0 0; height:34%; z-index:-1;
  background:linear-gradient(to top, var(--bg), transparent);
}

.hero__inner{ position:relative; }
.hero__title{
  font-size:clamp(46px, 9.4vw, 128px); line-height:.94; letter-spacing:-.045em;
  margin:0 0 30px; max-width:16ch;
}
.hero__lede{ max-width:60ch; font-size:clamp(16.5px,1.9vw,20px); color:var(--ink-2); }
.hero__lede em{ color:var(--ink); font-style:normal; }
.hero__cta{ display:flex; flex-wrap:wrap; gap:14px; margin:38px 0 0; }

.hero__stats{
  display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px;
  margin:76px 0 0; padding-top:30px; border-top:1px solid var(--line);
}
.hero__stats div{ min-width:0; }
.hero__stats dt{
  font-family:var(--disp); font-weight:600; font-size:clamp(30px,4.2vw,46px);
  letter-spacing:-.03em; line-height:1; color:var(--ink);
}
.hero__stats dd{ margin:9px 0 0; font-size:13.5px; color:var(--ink-3); }

.hero__scroll{
  position:absolute; left:50%; bottom:26px; transform:translateX(-50%);
  display:flex; align-items:center; gap:10px;
  font:500 11px/1 var(--mono); letter-spacing:.24em; text-transform:uppercase; color:var(--ink-3);
}
.hero__scroll span{
  width:22px; height:34px; border:1px solid var(--line-2); border-radius:12px; position:relative;
}
.hero__scroll span::after{
  content:""; position:absolute; top:7px; left:50%; width:3px; height:6px; border-radius:2px;
  background:var(--accent); transform:translateX(-50%); animation:scrolldot 1.9s var(--ease) infinite;
}
@keyframes scrolldot{ 0%{opacity:0;transform:translate(-50%,-3px)} 35%{opacity:1} 100%{opacity:0;transform:translate(-50%,13px)} }

/* 6. PINNED CROSSOVER ==================================================== */
.pin{ position:relative; height:400vh; }
.pin__stage{
  position:sticky; top:0; height:100svh; overflow:hidden; isolation:isolate;
  background:var(--bg-2);
}

.pane{ position:absolute; inset:0; display:flex; align-items:center; }
.pane__bg{ position:absolute; inset:0; z-index:-1; }
.pane--code .pane__bg{
  background:
    radial-gradient(70% 90% at 12% 50%, rgba(84,214,255,.16), transparent 62%),
    radial-gradient(60% 80% at 92% 20%, rgba(111,140,255,.14), transparent 60%),
    linear-gradient(160deg,#080a11,#0b0f19 60%,#070810);
}
.pane--code .pane__bg::after{
  content:""; position:absolute; inset:0; opacity:.5;
  background-image:linear-gradient(to right,rgba(84,214,255,.07) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(84,214,255,.07) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:linear-gradient(to right,#000,transparent 70%);
}
.pane--stage .pane__bg{
  background:
    radial-gradient(66% 88% at 84% 46%, rgba(255,77,146,.24), transparent 62%),
    radial-gradient(58% 74% at 20% 78%, rgba(255,171,77,.18), transparent 62%),
    linear-gradient(200deg,#120711,#17070f 55%,#0a0409);
}
.pane--stage .pane__bg::after{
  content:""; position:absolute; inset:0; opacity:.42; mix-blend-mode:screen;
  background:repeating-linear-gradient(74deg, transparent 0 46px, rgba(255,171,77,.14) 46px 48px, transparent 48px 96px);
  mask-image:linear-gradient(to left,#000,transparent 74%);
}

.pane--stage{
  --accent: var(--stage);
  clip-path:polygon(calc(var(--wx) + var(--slant) * 1%) 0%, 210% 0%, 210% 100%, calc(var(--wx) - var(--slant) * 1%) 100%);
  will-change:clip-path;
}

.pane__inner{ position:relative; max-width:var(--wrap); }

/* Each side drifts with the seam and cross-fades, so the two headlines never
   sit on top of each other while the wipe passes. */
.pane--code .pane__inner{
  transform:translate3d(calc(var(--p) * -12vw),0,0);
  opacity:clamp(0, calc((.46 - var(--p)) / .16), 1);
}
.pane--stage .pane__inner{
  transform:translate3d(calc((1 - var(--p)) * 14vw),0,0);
  opacity:clamp(0, calc((var(--p) - .54) / .16), 1);
}
.pane--code .pane__card{
  transform:translate3d(calc(var(--p) * -12vw),-50%,0);
  opacity:clamp(0, calc((.46 - var(--p)) / .16), 1);
}
.pane--stage .pane__card{
  transform:translate3d(calc((1 - var(--p)) * 14vw),-50%,0);
  opacity:clamp(0, calc((var(--p) - .54) / .16), 1);
}
.pane__kicker{
  font:500 12px/1 var(--mono); letter-spacing:.22em; text-transform:uppercase; color:var(--ink-2);
  display:inline-flex; align-items:center; gap:10px; margin:0 0 24px;
}
.pane--code .pane__kicker .dot{ background:var(--code); box-shadow:0 0 0 4px rgba(84,214,255,.18); }
.pane--stage .pane__kicker .dot{ background:var(--stage); box-shadow:0 0 0 4px rgba(255,77,146,.2); }
.pane__title{ font-size:clamp(38px,6.4vw,86px); letter-spacing:-.04em; margin:0 0 24px; }
.pane__lede{ max-width:46ch; color:var(--ink-2); font-size:clamp(15.5px,1.6vw,18.5px); }
.pane__chips{ display:flex; flex-wrap:wrap; gap:9px; margin-top:30px; max-width:46ch; }
.pane__chips li{
  padding:8px 15px; border-radius:100px; border:1px solid var(--line-2);
  font:500 12.5px/1 var(--mono); letter-spacing:.04em; color:var(--ink-2);
  background:rgba(255,255,255,.03); backdrop-filter:blur(6px);
}
.pane--code .pane__chips li{ border-color:rgba(84,214,255,.3); color:#bfe9ff; }
.pane--stage .pane__chips li{ border-color:rgba(255,77,146,.34); color:#ffd0e0; }

/* floating cards */
.pane__card{
  position:absolute; right:max(var(--pad), calc(50vw - var(--wrap)/2 + var(--pad)));
  top:50%; width:min(400px, 34vw); transform:translateY(-50%);
  border-radius:var(--r-lg); border:1px solid var(--line-2); overflow:hidden;
  background:rgba(9,11,17,.72); backdrop-filter:blur(16px);
  box-shadow:0 40px 90px -40px #000;
}
.term__bar{
  display:flex; align-items:center; gap:7px; padding:12px 15px;
  border-bottom:1px solid var(--line); background:rgba(255,255,255,.03);
}
.term__bar i{ width:9px; height:9px; border-radius:50%; background:var(--line-2); }
.term__bar i:first-child{ background:#ff5f57 } .term__bar i:nth-child(2){ background:#febc2e } .term__bar i:nth-child(3){ background:#28c840 }
.term__bar span{ margin-left:8px; font:400 11.5px/1 var(--mono); color:var(--ink-3); }
.term__body{
  margin:0; padding:18px 16px; min-height:216px; font:400 12.6px/1.85 var(--mono);
  color:#9fe8ff; white-space:pre-wrap; word-break:break-word;
}
.term__body b{ color:#7fffc4; font-weight:400 }
.term__body i{ color:var(--ink-3); font-style:normal }
.term__body u{ color:#ffd479; text-decoration:none }
.term__body .cur{ color:var(--code); animation:blink 1.05s steps(2,start) infinite }
@keyframes blink{ 50%{ opacity:0 } }

.pane__card--mix{ padding:16px; }
.mix__head{ display:flex; justify-content:space-between; font:500 11.5px/1 var(--mono); letter-spacing:.14em; color:var(--ink-3); margin-bottom:14px; }
.mix__db{ color:var(--stage-2); }
.mix__meters{ display:flex; gap:4px; align-items:flex-end; height:104px; margin-bottom:18px; }
.mix__meters i{
  flex:1; border-radius:2px; height:var(--h,20%); transform-origin:bottom;
  background:linear-gradient(to top,var(--stage),var(--stage-2) 72%,#fff);
  transition:height .12s linear; opacity:.9;
}
.mix__faders{ display:flex; gap:10px; height:98px; margin-top:16px; padding-top:14px; border-top:1px solid var(--line); }
.mix__faders i{
  flex:1; position:relative;
  background:linear-gradient(rgba(255,255,255,.09),rgba(255,255,255,.09)) center / 4px 100% no-repeat;
}
.mix__faders i::before{
  content:""; position:absolute; left:50%; bottom:0; width:4px; margin-left:-2px; border-radius:2px;
  height:calc(var(--v) * 100%);
  background:linear-gradient(to top,rgba(255,77,146,.5),rgba(255,171,77,.85));
}
.mix__faders i::after{
  content:""; position:absolute; left:50%; width:26px; margin-left:-13px; height:11px; border-radius:3px;
  bottom:calc(var(--v) * 100% - 5px);
  background:linear-gradient(#f6f7fb,#c9ccd8 55%,#8f94a6);
  box-shadow:0 2px 8px rgba(0,0,0,.55), 0 0 12px rgba(255,77,146,.35);
}

/* diagonal seam */
.seam{
  position:absolute; inset:0; z-index:6; pointer-events:none;
  mask-image:linear-gradient(to bottom, transparent, #000 14%, #000 86%, transparent);
}
.seam__blur{ position:absolute; inset:0; filter:blur(34px); opacity:.6; }
.seam__band{
  position:absolute; inset:0; background:var(--stage);
  clip-path:polygon(calc(var(--wx) + var(--slant) * 1% + 2.6%) 0%, calc(var(--wx) + var(--slant) * 1% - 2.6%) 0%,
                    calc(var(--wx) - var(--slant) * 1% - 2.6%) 100%, calc(var(--wx) - var(--slant) * 1% + 2.6%) 100%);
}
.seam__line{
  position:absolute; inset:0; background:linear-gradient(to bottom, #fff, #ffd7e6 50%, #fff);
  clip-path:polygon(calc(var(--wx) + var(--slant) * 1% + .09%) 0%, calc(var(--wx) + var(--slant) * 1% - .09%) 0%,
                    calc(var(--wx) - var(--slant) * 1% - .09%) 100%, calc(var(--wx) - var(--slant) * 1% + .09%) 100%);
  opacity:.75;
}

.pin__wave{
  position:absolute; left:0; right:0; bottom:0; width:100%; height:30%;
  z-index:7; pointer-events:none; opacity:.95;
}

.pin__rail{
  position:absolute; right:max(20px, calc(50vw - var(--wrap)/2 + 10px)); top:50%;
  transform:translateY(-50%); z-index:8;
  display:flex; flex-direction:column; align-items:center; gap:14px;
  font:500 11px/1 var(--mono); letter-spacing:.16em; color:var(--ink-3);
}
.pin__rail-track{ width:2px; height:120px; border-radius:2px; background:rgba(255,255,255,.14); position:relative; overflow:hidden; }
.pin__rail-track i{ position:absolute; inset:0 0 auto; height:0%; background:var(--accent); border-radius:2px; }
.pin__rail-num.is-on{ color:var(--ink); }

.pin__readout{
  position:absolute; left:max(var(--pad), calc(50vw - var(--wrap)/2 + var(--pad))); bottom:34px; z-index:8;
  font:500 11.5px/1 var(--mono); letter-spacing:.2em; color:var(--ink-3); margin:0;
}
.pin__readout .sep{ opacity:.4; margin:0 6px; }
#readoutMode{ color:var(--accent); }

.pin__hint{
  position:absolute; left:50%; bottom:34px; transform:translateX(-50%); z-index:8;
  display:flex; align-items:center; gap:10px; white-space:nowrap;
  font:500 11px/1 var(--mono); letter-spacing:.2em; text-transform:uppercase; color:var(--ink-3);
  transition:opacity .4s var(--ease);
}
.pin__hint span{ width:26px; height:1px; background:var(--accent); animation:hintline 1.8s var(--ease) infinite; }
@keyframes hintline{ 0%,100%{ transform:scaleX(.3); opacity:.4 } 50%{ transform:scaleX(1); opacity:1 } }
.pin__hint.is-out{ opacity:0; }

/* 7. SECTIONS ============================================================ */
.sec{ position:relative; padding:clamp(84px,11vw,150px) 0; }
.sec__title{ font-size:clamp(31px,4.6vw,58px); letter-spacing:-.035em; margin:0 0 20px; }
.sec__lede{ color:var(--ink-2); font-size:clamp(16px,1.7vw,18.5px); max-width:58ch; }

/* contact */
.sec--contact{ position:relative; overflow:hidden; }
.sec--contact::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(48% 60% at 8% 12%, rgba(84,214,255,.14), transparent 66%),
    radial-gradient(48% 60% at 94% 88%, rgba(255,77,146,.16), transparent 66%);
}
.contact{ position:relative; display:grid; grid-template-columns:1fr .92fr; gap:clamp(34px,5vw,80px); align-items:start; }
.contact__list{ margin-top:40px; display:grid; gap:2px; }
.contact__list li{ display:flex; gap:20px; padding:15px 0; border-top:1px solid var(--line); align-items:baseline; }
.contact__list li:last-child{ border-bottom:1px solid var(--line); }
.contact__list span:first-child{ font:500 11px/1.4 var(--mono); letter-spacing:.18em; text-transform:uppercase; color:var(--ink-3); }
.contact__list a, .contact__list .contact__val{ font-size:16.5px; border-bottom:1px solid transparent; transition:border-color .25s var(--ease), color .25s var(--ease); }
.contact__list .contact__val{ color:var(--ink-1); }
.contact__list a:hover{ color:var(--accent); border-bottom-color:var(--accent); }

.form{
  padding:clamp(24px,3vw,36px); border-radius:var(--r-lg); border:1px solid var(--line);
  background:rgba(12,14,20,.66); backdrop-filter:blur(18px); display:grid; gap:16px;
  box-shadow:0 40px 100px -50px #000;
}
.form__row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ display:grid; gap:8px; }
.field > span{ font:500 11px/1 var(--mono); letter-spacing:.18em; text-transform:uppercase; color:var(--ink-3); }
.field input,.field textarea{
  width:100%; padding:14px 16px; border-radius:11px; border:1px solid var(--line-2);
  background:rgba(255,255,255,.035); font-size:15.5px; resize:vertical;
  transition:border-color .25s var(--ease), background .25s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{ color:var(--ink-3); opacity:.75; }
.field input:focus,.field textarea:focus{ outline:none; border-color:var(--accent); background:rgba(255,255,255,.06); }
.field input:invalid:not(:placeholder-shown){ border-color:#ff6b6b; }

.form__seg{ border:0; padding:0; margin:0; display:flex; flex-wrap:wrap; gap:8px; }
.form__seg legend{
  flex-basis:100%; padding:0; margin-bottom:8px;
  font:500 11px/1 var(--mono); letter-spacing:.18em; text-transform:uppercase; color:var(--ink-3);
}
.form__seg label{ cursor:pointer; }
.form__seg input{ position:absolute; opacity:0; pointer-events:none; }
.form__seg span{
  display:inline-block; padding:10px 18px; border-radius:100px; border:1px solid var(--line-2);
  font-size:14px; color:var(--ink-2); transition:all .25s var(--ease);
}
.form__seg input:checked + span{ background:var(--accent); border-color:transparent; color:#05060a; font-weight:600; }
.form__seg input:focus-visible + span{ outline:2px solid var(--accent); outline-offset:3px; }
.form__note{ font-size:13px; color:var(--ink-3); text-align:center; }
.form__note.is-err{ color:#ff8f8f; }
.form__note.is-ok{ color:#7fffc4; }

/* 8. FOOTER ============================================================== */
.foot{ border-top:1px solid var(--line); background:var(--bg-2); padding:56px 0 40px; }
.foot__inner{ display:grid; gap:26px; }
.foot__brand{ display:flex; align-items:center; gap:14px; }
.foot__brand p{ color:var(--ink-2); font-size:15px; max-width:58ch; }
.foot__nav{ display:flex; flex-wrap:wrap; gap:22px; padding-top:24px; border-top:1px solid var(--line); }
.foot__nav a{ font-size:14.5px; color:var(--ink-2); transition:color .2s var(--ease); }
.foot__nav a:hover{ color:var(--accent); }
.foot__legal{ font:400 12.5px/1.6 var(--mono); letter-spacing:.04em; color:var(--ink-3); }

/* 9. RESPONSIVE ========================================================== */
@media (max-width:1100px){
  .pane__card{ display:none; }
  .pin__rail{ display:none; }
  :root{ --slant:4; }
}

/* Above this width the floating card sits to the right of the pane text, so
   the headline is capped to keep clear of it whatever the translation says. */
@media (min-width:1101px){
  .pane__title{ max-width:62%; }
}

@media (max-width:760px){
  .nav__links{
    position:fixed; inset:70px 12px auto; flex-direction:column; gap:2px; padding:14px;
    border-radius:var(--r-lg); border:1px solid var(--line-2);
    background:color-mix(in srgb,var(--bg) 94%, transparent); backdrop-filter:blur(22px);
    box-shadow:0 40px 90px -40px #000;
    opacity:0; visibility:hidden; transform:translateY(-12px);
    transition:opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
  }
  .nav.is-open .nav__links{ opacity:1; visibility:visible; transform:none; }
  .nav__links a{ padding:13px 14px; font-size:16px; }
  .nav__links a.is-active::after{ display:none; }
  .nav__burger{ display:flex; }
  .lang{ margin-left:auto; }

  .contact{ grid-template-columns:1fr; }
  .hero__stats{ grid-template-columns:1fr 1fr; gap:26px 20px; }
  .pin{ height:340vh; }
  .pin__readout{ display:none; }
}

@media (max-width:640px){
  body{ font-size:16px; }
  .form__row{ grid-template-columns:1fr; }
  .hero__cta{ flex-direction:column; }
  .hero__cta .btn{ width:100%; }
  .nav__inner{ gap:12px; padding:12px var(--pad); }
  .hero__scroll{ display:none; }
  .contact__list li{ flex-direction:column; gap:6px; }
  :root{ --slant:3; }
}

/* reduced motion: unpin the crossover, stack the two panes, kill animation */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
  .pin{ height:auto; }
  .pin__stage{ position:static; height:auto; }
  .pane{ position:relative; inset:auto; min-height:auto; padding:clamp(60px,9vw,110px) 0; }
  .pane--stage{ clip-path:none !important; }
  .pane__inner{ opacity:1 !important; transform:none !important; }
  .pane__card,.seam,.pin__wave,.pin__rail,.pin__hint,.pin__readout,.hero__scroll{ display:none; }
}