/* ============================================================
   LINSYNC — The Digital Atelier
   Shared editorial design system  ·  css/atelier.css
   Light · Europa (Hanken Grotesk carrier) · lavender→sky
   ============================================================ */

/* ---- Tokens ---------------------------------------------- */
:root{
  --paper:#FBFAFE;          /* soft white base            */
  --paper-2:#F3F0FA;        /* faint lavender panel        */
  --paper-3:#ECE7F6;        /* deeper panel / hover        */
  --ink:#181318;            /* near-black text             */
  --ink-2:#574f5c;          /* muted body                  */
  --ink-3:#8d8696;          /* faint / captions            */
  --lav:#bb87cb;            /* primary lavender            */
  --sky:#75aae7;            /* secondary sky blue          */
  --peri:#8a86d0;           /* periwinkle support          */
  --line:rgba(24,19,24,.12);
  --line-2:rgba(24,19,24,.08);
  --grad:linear-gradient(102deg,#bb87cb 0%,#8a86d0 48%,#75aae7 100%);
  --grad-soft:linear-gradient(102deg,rgba(187,135,203,.16),rgba(117,170,231,.16));
  --shadow:0 1px 2px rgba(24,19,24,.04),0 18px 50px -24px rgba(99,70,140,.28);
  --shadow-lg:0 2px 6px rgba(24,19,24,.05),0 40px 90px -40px rgba(99,70,140,.42);
  --r:14px; --r-lg:22px; --r-pill:999px;
  --pad:clamp(20px,5vw,64px);   /* page side gutter        */
  --maxw:1320px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---- Reset / base ---------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Europa","Hanken Grotesk",ui-sans-serif,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-weight:400;line-height:1.6;font-size:clamp(15px,1.05vw,17px);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  font-feature-settings:"ss01","cv01","tnum" 0;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
::selection{background:rgba(187,135,203,.28);color:var(--ink)}

/* ---- Layout helpers -------------------------------------- */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(72px,11vw,150px);position:relative}
.rule{height:1px;background:var(--line);border:0;margin:0}
.cols{display:grid;gap:clamp(24px,4vw,56px)}
@media(min-width:880px){.cols-2{grid-template-columns:1fr 1fr}.cols-12{grid-template-columns:repeat(12,1fr)}}

/* ---- Typography ------------------------------------------ */
.display{
  font-weight:800;line-height:.96;letter-spacing:-.03em;
  font-size:clamp(44px,9vw,128px);margin:0;
  text-wrap:balance;
}
.h1{font-weight:800;line-height:1.0;letter-spacing:-.025em;font-size:clamp(34px,5.4vw,68px);margin:0}
.h2{font-weight:700;line-height:1.04;letter-spacing:-.02em;font-size:clamp(27px,3.6vw,46px);margin:0}
.h3{font-weight:700;line-height:1.12;letter-spacing:-.015em;font-size:clamp(20px,2vw,26px);margin:0}
.lead{font-size:clamp(17px,1.55vw,22px);line-height:1.5;color:var(--ink-2);font-weight:400;max-width:60ch}
.muted{color:var(--ink-2)}
.faint{color:var(--ink-3)}
.gt{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.34em;text-transform:uppercase;
  color:var(--ink-2);display:inline-flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--grad)}
.eyebrow.no-tick::before{display:none}
.serif-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.idx{font-size:13px;font-weight:600;letter-spacing:.2em;color:var(--lav)}

/* ---- Buttons --------------------------------------------- */
.btn{
  --bg:var(--ink);--fg:var(--paper);
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.95em 1.6em;border-radius:var(--r-pill);font-weight:600;font-size:.95rem;
  letter-spacing:-.01em;background:var(--bg);color:var(--fg);border:1px solid transparent;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),background .35s,color .35s;
  will-change:transform;white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-grad{background:var(--grad);color:#fff;background-size:160% 160%;animation:gradShift 7s ease-in-out infinite}
.btn-grad:hover{box-shadow:0 16px 40px -16px rgba(138,134,208,.7)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:transparent}
.btn .ar{transition:transform .4s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
@keyframes gradShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* ---- Navigation ------------------------------------------ */
.nav{position:fixed;inset:0 0 auto;z-index:60;transition:transform .5s var(--ease)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  max-width:var(--maxw);margin-inline:auto;
  padding:18px var(--pad);transition:padding .4s var(--ease);
}
.nav::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:0;
  background:rgba(251,250,254,.78);backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--line-2);transition:opacity .4s var(--ease);
}
.nav.scrolled::after{opacity:1}
.nav.scrolled .nav-inner{padding-top:11px;padding-bottom:11px}
.brand{display:inline-flex;align-items:center;gap:.55em;font-weight:800;letter-spacing:-.04em;font-size:1.35rem}
.brand .mark{width:1.45em;height:1.45em;border-radius:8px;background:var(--grad);display:inline-block;
  position:relative;box-shadow:0 6px 16px -8px rgba(138,134,208,.9)}
.brand .mark::after{content:"";position:absolute;inset:24% 30% 24% 30%;border:2px solid rgba(255,255,255,.92);
  border-radius:3px;border-right-color:transparent;border-bottom-color:transparent;transform:rotate(45deg)}
.nav-links{display:none;align-items:center;gap:6px}
.nav-links a{
  position:relative;padding:.5em .85em;font-weight:500;font-size:.95rem;color:var(--ink-2);
  border-radius:var(--r-pill);transition:color .3s
}
.nav-links a::after{content:"";position:absolute;left:.85em;right:.85em;bottom:.28em;height:1.5px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink)}
.nav-cta{display:none;align-items:center;gap:10px}
.burger{display:inline-flex;flex-direction:column;gap:5px;padding:10px;background:transparent;border:0}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.35s var(--ease)}
.nav.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.menu-open .burger span:nth-child(2){opacity:0}
.nav.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:920px){.nav-links{display:flex}.nav-cta{display:flex}.burger{display:none}}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:55;background:var(--paper);
  display:flex;flex-direction:column;justify-content:center;gap:6px;padding:var(--pad);
  transform:translateY(-100%);transition:transform .55s var(--ease);
}
.nav.menu-open + .drawer,.drawer.open{transform:translateY(0)}
.drawer a{font-size:clamp(28px,8vw,44px);font-weight:800;letter-spacing:-.03em;padding:.18em 0;
  border-bottom:1px solid var(--line-2);color:var(--ink)}
.drawer .drawer-cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.drawer a.drawer-cta-btn{border:0;font-size:1rem}

/* ---- Footer ---------------------------------------------- */
.foot{background:#14101c;color:#FBFAFE;padding-block:clamp(56px,8vw,96px) 36px;position:relative;overflow:hidden}
.foot .wrap{position:relative;z-index:1}
.foot-grid{display:grid;gap:40px;grid-template-columns:1fr;align-items:start}
@media(min-width:780px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr}}
.foot a{color:rgba(251,250,254,.66);transition:color .3s}
.foot a:hover{color:#fff}
.foot .display{font-size:clamp(54px,12vw,150px);line-height:.82;color:#fff;letter-spacing:-.04em}
.foot-col h4{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:rgba(251,250,254,.5);margin:0 0 16px;font-weight:600}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;font-size:.96rem}
.foot-bot{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  margin-top:54px;padding-top:24px;border-top:1px solid rgba(251,250,254,.16);font-size:.82rem;color:rgba(251,250,254,.5)}
.foot-glow{position:absolute;width:60vw;height:60vw;left:-10vw;bottom:-30vw;border-radius:50%;
  background:radial-gradient(circle,rgba(138,134,208,.5),transparent 62%);filter:blur(30px);pointer-events:none}

/* ---- Cards / surfaces ------------------------------------ */
.card{background:var(--surface-card);border:1px solid var(--line-2);border-radius:var(--r-lg);padding:clamp(22px,2.6vw,34px);
  box-shadow:var(--shadow);transition:transform .55s var(--ease),box-shadow .55s var(--ease),border-color .4s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line)}
.panel{background:var(--paper-2);border:1px solid var(--line-2);border-radius:var(--r-lg)}

/* ---- Marquee --------------------------------------------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding-block:18px;white-space:nowrap;display:flex}
.marquee__row{display:inline-flex;gap:.6em;padding-right:.6em;will-change:transform;animation:marq 28s linear infinite}
.marquee:hover .marquee__row{animation-play-state:paused}
.marquee__row span{font-size:clamp(28px,4.4vw,60px);font-weight:800;letter-spacing:-.03em}
.marquee__row .dot{color:var(--lav)}
.marquee__row .out{-webkit-text-fill-color:transparent;-webkit-text-stroke:1.2px var(--ink-3)}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---- Reveal / motion ------------------------------------- */
.has-js [data-reveal]{opacity:0;transform:translateY(26px)}
.has-js [data-split] .ln{display:block;overflow:hidden}
.has-js [data-split] .ln > span{display:block;transform:translateY(105%)}
.has-js [data-clip]{clip-path:inset(0 0 100% 0)}
.scroll-prog{position:fixed;left:0;top:0;height:3px;width:100%;transform:scaleX(0);transform-origin:left;
  background:var(--grad);z-index:70}

/* gradient progress for capability index numbers etc */
.hairline{border:0;height:1px;background:var(--line)}

/* ---- Tags / chips ---------------------------------------- */
.chip{display:inline-flex;align-items:center;gap:.5em;padding:.42em .9em;border:1px solid var(--line);
  border-radius:var(--r-pill);font-size:.8rem;font-weight:500;color:var(--ink-2);background:var(--surface-card)}
.chip .d{width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ---- Accessibility / motion pref ------------------------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .has-js [data-reveal],.has-js [data-split] .ln>span,.has-js [data-clip]{opacity:1!important;transform:none!important;clip-path:none!important}
}

/* ============================================================
   Logo lockups (real brand files)
   ============================================================ */
.brand{gap:0}
.brand .logo{height:66px;width:auto;display:block;transition:height .4s var(--ease)}
.nav.scrolled .brand .logo{height:56px}
@media(max-width:520px){.brand .logo{height:58px}}
.brand .logo-ondark{display:none}          /* light bg → show dark-wordmark? no: */
.brand .logo-onlight{display:block}         /* light mode → dark-wordmark logo (Logo hell_) */
html.dark .brand .logo-onlight{display:none}
html.dark .brand .logo-ondark{display:block}/* dark mode → white-wordmark logo (Logo dunkel_) */
.foot .brand .logo{height:62px}

/* ============================================================
   Theme toggle (top-right) + nav grouping
   ============================================================ */
.nav-right{display:flex;align-items:center;gap:12px}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;flex:none;
  border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);
  transition:transform .4s var(--ease),border-color .3s,background .3s}
.theme-toggle:hover{border-color:var(--ink);transform:translateY(-1px)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .i-sun{display:none}
html.dark .theme-toggle .i-sun{display:block}
html.dark .theme-toggle .i-moon{display:none}

/* ============================================================
   Dark mode tokens + surface overrides
   ============================================================ */
:root{--surface-card:#fff}
html.dark{
  --paper:#0f0c15; --paper-2:#191523; --paper-3:#241e31;
  --ink:#f4f1fb; --ink-2:#b6afc6; --ink-3:#837c93;
  --line:rgba(244,241,251,.15); --line-2:rgba(244,241,251,.08);
  --surface-card:#171320;
  --grad-soft:linear-gradient(102deg,rgba(187,135,203,.22),rgba(117,170,231,.22));
  --shadow:0 1px 2px rgba(0,0,0,.5),0 20px 50px -26px rgba(0,0,0,.7);
  --shadow-lg:0 2px 8px rgba(0,0,0,.55),0 44px 90px -42px rgba(0,0,0,.8);
}
html.dark body{background:var(--paper);color:var(--ink)}
/* scrolled nav backdrop in dark */
html.dark .nav::after{background:rgba(15,12,21,.82);border-bottom-color:var(--line-2)}
/* page-local light surfaces → dark (specificity html.dark beats single class) */
html.dark .cmd,
html.dark .ccard,
html.dark .tier,
html.dark .stat-card,
html.dark .dd-btn,
html.dark .dd-list{background:var(--surface-card);border-color:var(--line-2)}
html.dark .status-card,
html.dark .panel{background:var(--paper-2);border-color:var(--line-2)}
/* keep gradient/dark designed surfaces intact in both themes (no-op safety) */
html.dark .work-card,html.dark .atelier-card,html.dark .term-device,html.dark .modal .sheet{box-shadow:var(--shadow-lg)}