/* =========================================================================
   Altered Horizon Ventures — "deep-tech dark" design system
   Hand-authored, no build step. Self-hosted fonts. WCAG-AA, reduced-motion safe.
   ========================================================================= */

/* ---- Self-hosted fonts ---- */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/space-grotesk-500.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/space-grotesk-700.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/inter-400.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/inter-500.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/inter-600.woff2') format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/jetbrains-mono-500.woff2') format('woff2')}

/* ---- Tokens ---- */
:root{
  --bg:#0A0C12; --bg-2:#0d1018; --surface:#12151D; --surface-2:#161A24;
  --hairline:#1E2330; --hairline-2:#272d3d;
  --text:#E7ECF3; --muted:#8A93A3; --muted-2:#5d6675;
  --accent:#22E3DC; --accent-ink:#062b29; --accent-dim:rgba(34,227,220,.14);
  --accent-2:#7C8CFF; /* secondary cool accent for motif depth */
  --danger:#ff6b6b; --ok:#3ddc97;
  --font-display:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  --maxw:1180px; --gutter:clamp(1.1rem,4vw,2.5rem);
  --radius:14px; --radius-s:10px;
  --step--1:clamp(.82rem,.79rem + .15vw,.9rem);
  --step-0:clamp(1rem,.96rem + .2vw,1.08rem);
  --step-1:clamp(1.2rem,1.1rem + .5vw,1.45rem);
  --step-2:clamp(1.5rem,1.3rem + 1vw,2rem);
  --step-3:clamp(2rem,1.6rem + 2vw,3.1rem);
  --step-4:clamp(2.7rem,2rem + 3.6vw,4.8rem);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---- Reset / base ---- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:var(--step-0);line-height:1.65;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg,video,canvas{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.08;letter-spacing:-.02em;margin:0 0 .5em}
p{margin:0 0 1.1em}
strong{font-weight:600;color:#fff}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
hr{border:0;border-top:1px solid var(--hairline);margin:0}

/* ---- Layout ---- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(3.5rem,8vw,6.5rem);position:relative}
.section--tight{padding-block:clamp(2.5rem,5vw,4rem)}
.eyebrow{font-family:var(--font-mono);font-weight:500;font-size:var(--step--1);letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin:0 0 1.1rem;display:inline-flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:1.6rem;height:1px;background:var(--accent);opacity:.6}
.lede{font-size:var(--step-1);color:var(--muted);max-width:46ch;line-height:1.5;font-weight:400}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--font-body);font-weight:600;font-size:var(--step-0);padding:.85em 1.4em;border-radius:var(--radius-s);border:1px solid transparent;cursor:pointer;transition:transform .15s var(--ease),background .2s,border-color .2s,color .2s;text-decoration:none;line-height:1}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 0 0 1px var(--accent),0 8px 30px -12px var(--accent)}
.btn--primary:hover{background:#3ff0e9}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--hairline-2)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn .arrow{transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}

/* ---- Header ---- */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(140%) blur(10px);background:rgba(10,12,18,.55);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
.site-header.is-stuck{background:rgba(10,12,18,.88);border-bottom-color:var(--hairline)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:68px}
.brand{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-display);font-weight:700;font-size:1.12rem;letter-spacing:-.02em;color:#fff;text-decoration:none}
.brand:hover{text-decoration:none}
.brand .mark{width:26px;height:26px;flex:0 0 auto}
.brand-logo{height:34px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:1.6rem;margin:0;padding:0;list-style:none}
.nav-links a{color:var(--muted);font-size:var(--step--1);font-weight:500;letter-spacing:.01em}
.nav-links a:hover{color:var(--text);text-decoration:none}
.nav-actions{display:flex;align-items:center;gap:.9rem}

/* language toggle */
.lang-toggle{display:inline-flex;border:1px solid var(--hairline-2);border-radius:999px;overflow:hidden;font-family:var(--font-mono);font-size:.72rem;font-weight:500}
.lang-toggle button{appearance:none;background:transparent;border:0;color:var(--muted);padding:.42em .8em;cursor:pointer;letter-spacing:.06em;transition:color .2s,background .2s}
.lang-toggle button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.nav-toggle{display:none;background:transparent;border:1px solid var(--hairline-2);border-radius:8px;width:40px;height:40px;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle svg{width:20px;height:20px}

/* ---- Hero ---- */
.hero{position:relative;padding-block:clamp(4rem,12vh,8rem) clamp(3rem,8vw,5.5rem);overflow:hidden}
.hero canvas#motif{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.55;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(120% 90% at 70% 10%,transparent 40%,var(--bg) 78%),linear-gradient(180deg,transparent 55%,var(--bg) 100%)}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:var(--step-4);max-width:16ch;margin-bottom:.35em}
.hero h1 .grad{background:linear-gradient(100deg,#fff 30%,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{margin-bottom:2rem;max-width:54ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}
.hero-meta{margin-top:2.6rem;display:flex;flex-wrap:wrap;gap:1.6rem;font-family:var(--font-mono);font-size:var(--step--1);color:var(--muted-2);letter-spacing:.04em}
.hero-meta span{display:inline-flex;align-items:center;gap:.5rem}
.hero-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---- Services ---- */
.cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.card{background:linear-gradient(180deg,var(--surface),var(--bg-2));border:1px solid var(--hairline);border-radius:var(--radius);padding:1.6rem 1.5rem;position:relative;transition:border-color .25s,transform .25s var(--ease),background .25s;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(140deg,var(--accent),transparent 45%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s}
.card:hover{transform:translateY(-3px);border-color:var(--hairline-2)}
.card:hover::before{opacity:.5}
.card .num{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;color:var(--accent);opacity:.8}
.card h3{font-size:var(--step-1);margin:.7rem 0 .55rem}
.card p{color:var(--muted);font-size:var(--step--1);margin:0}
.card .tags{margin-top:1rem;display:flex;flex-wrap:wrap;gap:.4rem}
.card .tags span{font-family:var(--font-mono);font-size:.66rem;color:var(--muted-2);border:1px solid var(--hairline);border-radius:6px;padding:.2em .5em;letter-spacing:.03em}

/* ---- Approach ---- */
.approach{display:grid;gap:clamp(2rem,5vw,3.5rem);grid-template-columns:1fr;align-items:start}
@media(min-width:860px){.approach{grid-template-columns:.9fr 1.1fr}}
.steps{counter-reset:step;display:grid;gap:1.4rem}
.step{display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:start}
.step .idx{counter-increment:step;font-family:var(--font-mono);color:var(--accent);font-size:.8rem;border:1px solid var(--hairline-2);border-radius:8px;width:2.2rem;height:2.2rem;display:grid;place-items:center}
.step .idx::before{content:counter(step,decimal-leading-zero)}
.step h4{font-size:var(--step-1);margin:.1rem 0 .35rem}
.step p{color:var(--muted);font-size:var(--step--1);margin:0}
.pull{border-left:2px solid var(--accent);padding-left:1.3rem;font-family:var(--font-display);font-weight:500;font-size:var(--step-2);line-height:1.25;letter-spacing:-.01em}
.pull em{color:var(--accent);font-style:normal}

/* ---- Games proof strip ---- */
.games{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.game{display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:center;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius);padding:1rem;transition:border-color .2s,transform .2s var(--ease)}
.game:hover{transform:translateY(-2px);border-color:var(--hairline-2);text-decoration:none}
.game .icon{width:62px;height:62px;border-radius:14px;border:1px solid var(--hairline-2);object-fit:cover;background:var(--bg-2)}
.game .name{font-family:var(--font-display);font-weight:700;color:#fff;font-size:1.05rem;letter-spacing:-.01em;display:flex;align-items:center;gap:.5rem}
.game .tagline{color:var(--muted);font-size:var(--step--1);margin:.2rem 0 0}
.game .live{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ok);border:1px solid rgba(61,220,151,.3);border-radius:5px;padding:.1em .4em}
.game .soon{color:var(--muted-2);border-color:var(--hairline)}
.games-note{color:var(--muted-2);font-size:var(--step--1);margin-top:1.4rem;font-family:var(--font-mono);letter-spacing:.02em}

/* ---- Studio / about ---- */
.studio-grid{display:grid;gap:clamp(1.6rem,4vw,3rem);grid-template-columns:1fr}
@media(min-width:820px){.studio-grid{grid-template-columns:1.2fr .8fr}}
.facts{display:grid;gap:.1rem;align-self:start;border:1px solid var(--hairline);border-radius:var(--radius);overflow:hidden}
.fact{display:flex;justify-content:space-between;gap:1rem;padding:.95rem 1.2rem;background:var(--surface);border-bottom:1px solid var(--hairline)}
.fact:last-child{border-bottom:0}
.fact dt{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2)}
.fact dd{margin:0;color:var(--text);font-size:var(--step--1);text-align:right;font-weight:500}

/* ---- Contact ---- */
.contact-grid{display:grid;gap:clamp(1.6rem,5vw,3rem);grid-template-columns:1fr}
@media(min-width:820px){.contact-grid{grid-template-columns:1fr 1fr}}
.form{display:grid;gap:1rem}
.field{display:grid;gap:.4rem}
.field label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{font-family:var(--font-body);font-size:var(--step-0);color:var(--text);background:var(--surface);border:1px solid var(--hairline-2);border-radius:var(--radius-s);padding:.8em .9em;width:100%;transition:border-color .2s,background .2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:var(--surface-2)}
.field textarea{min-height:140px;resize:vertical}
.consent{display:flex;gap:.7rem;align-items:flex-start;font-size:var(--step--1);color:var(--muted)}
.consent input{margin-top:.25rem;accent-color:var(--accent);width:18px;height:18px;flex:0 0 auto}
.consent a{text-decoration:underline}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-note{font-size:var(--step--1);color:var(--muted-2)}
.form-status{font-size:var(--step--1);min-height:1.2em;font-family:var(--font-mono);letter-spacing:.02em}
.form-status.ok{color:var(--ok)} .form-status.err{color:var(--danger)}
.contact-aside .lede{margin-bottom:1.4rem}
.contact-aside a.mail{font-family:var(--font-mono);font-size:var(--step-0)}

/* ---- Footer ---- */
.site-footer{border-top:1px solid var(--hairline);background:var(--bg-2);padding-block:clamp(2.5rem,5vw,3.5rem) 2rem;margin-top:2rem}
.footer-top{display:grid;gap:2rem;grid-template-columns:1fr;align-items:start}
@media(min-width:760px){.footer-top{grid-template-columns:1.4fr 1fr 1fr}}
.footer-brand .mark{width:30px;height:30px}
.footer-logo{height:44px;width:auto;display:block;margin-bottom:1rem}
.footer-brand .legal-name{font-family:var(--font-display);font-weight:700;color:#fff;font-size:1.05rem;margin:.8rem 0 .3rem}
.footer-brand p{color:var(--muted);font-size:var(--step--1);max-width:34ch}
.footer-col h5{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin:0 0 .9rem}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.footer-col a{color:var(--muted);font-size:var(--step--1)}
.footer-col a:hover{color:var(--text);text-decoration:none}
.privacy-line{color:var(--muted-2);font-size:var(--step--1)}
.privacy-line a{color:var(--muted)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;margin-top:2.4rem;padding-top:1.4rem;border-top:1px solid var(--hairline);color:var(--muted-2);font-size:var(--step--1)}
.footer-bottom .lang-toggle{font-size:.68rem}

/* ---- Legal / prose pages ---- */
.prose{max-width:760px}
.prose h1{font-size:var(--step-3);margin-bottom:.2em}
.prose .updated{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted-2);margin-bottom:2.2rem;display:block}
.prose h2{font-size:var(--step-2);margin-top:2.2em}
.prose h3{font-size:var(--step-1);margin-top:1.6em}
.prose p,.prose li{color:#c3cad6}
.prose a{text-decoration:underline}
.prose ul{padding-left:1.2rem}
.prose li{margin-bottom:.5em}
.prose .callout{border:1px solid var(--hairline-2);border-left:2px solid var(--accent);background:var(--surface);border-radius:var(--radius-s);padding:1rem 1.2rem;color:var(--muted);font-size:var(--step--1)}

/* ---- Koenig editor card widths (for any rich Ghost page/post content) ---- */
.post-content,.page-content{max-width:760px}
.post-content img,.page-content img{border-radius:var(--radius-s)}
.kg-width-wide{position:relative;width:100%;max-width:1050px;margin-inline:auto}
.kg-width-full{position:relative;width:100vw;max-width:100vw;margin-inline:calc(50% - 50vw)}
.kg-width-full img{width:100%}

/* ---- i18n visibility ---- */
[data-lang="fr"] .lang-en{display:none!important}
[data-lang="en"] .lang-fr{display:none!important}
/* inline paired text spans */
.i18n{display:inline}

/* ---- Section divider motif ---- */
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--hairline) 20%,var(--hairline) 80%,transparent);position:relative}
.divider::after{content:"";position:absolute;left:50%;top:-2px;width:5px;height:5px;border-radius:50%;background:var(--accent);transform:translateX(-50%);box-shadow:0 0 12px 1px var(--accent)}

/* ---- Skip link ---- */
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--accent-ink);padding:.6em 1em;z-index:100;border-radius:0 0 8px 0;font-weight:600}
.skip:focus{left:0}

/* ---- Mobile nav ---- */
@media(max-width:820px){
  .nav-links{position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--bg-2);border-bottom:1px solid var(--hairline);padding:.5rem var(--gutter) 1.2rem;transform:translateY(-120%);transition:transform .3s var(--ease);box-shadow:0 20px 40px -20px #000}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%;border-bottom:1px solid var(--hairline)}
  .nav-links a{display:block;padding:.95rem 0;font-size:var(--step-0)}
  .nav-toggle{display:inline-flex}
  .nav .desktop-cta{display:none}
  .brand{font-size:.98rem;white-space:nowrap;gap:.45rem}
  .nav-actions{gap:.55rem}
}
@media(max-width:820px){.brand-logo{height:30px}}
@media(max-width:430px){.brand{font-size:.86rem}.brand .mark{width:22px;height:22px}.brand-logo{height:26px}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .hero canvas#motif{display:none}
}