/* ==========================================================================
   Leitstern — design system
   All colour and type decisions flow from the tokens in :root.

   Fonts are SELF-HOSTED on purpose. Loading them from the Google Fonts CDN
   would send every visitor's IP address to a third country, which contradicts
   the privacy policy ("this site collects nothing") and adds two extra DNS +
   TLS round trips before the first paint. Do not replace these with a
   <link> to fonts.googleapis.com.
   ========================================================================== */

/* Inter — body */
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;
  src:url("../fonts/inter-latin-ext-400-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;
  src:url("../fonts/inter-latin-400-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;
  src:url("../fonts/inter-latin-ext-500-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;
  src:url("../fonts/inter-latin-500-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;
  src:url("../fonts/inter-latin-ext-600-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;
  src:url("../fonts/inter-latin-600-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* Inter Tight — display */
@font-face{font-family:"Inter Tight";font-style:normal;font-weight:500;font-display:swap;
  src:url("../fonts/inter-tight-latin-ext-500-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter Tight";font-style:normal;font-weight:500;font-display:swap;
  src:url("../fonts/inter-tight-latin-500-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter Tight";font-style:normal;font-weight:600;font-display:swap;
  src:url("../fonts/inter-tight-latin-ext-600-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter Tight";font-style:normal;font-weight:600;font-display:swap;
  src:url("../fonts/inter-tight-latin-600-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --ink:#000000; --ink-2:#1A1A18; --muted:#6E6E68; --muted-2:#8C8C86;
  --bg:#FFFFFF; --bg-2:#F5F5F3; --bg-3:#EBEBE7; --line:#E4E4DF;

  /* Division accents */
  --doc:#1B4FD8;   /* Laydox — document production */
  --mkt:#C2603A;   /* Cume — marketplace */
  --est:#1A2E26;   /* .house — real estate */

  --disp:"Inter Tight",Inter,system-ui,-apple-system,sans-serif;
  --body:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;

  --maxw:1280px; --r:22px; --r-lg:32px;
  --pad-x:clamp(1.25rem,3vw,2.5rem);
}

*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{font-family:var(--body);font-size:17px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:3px}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad-x)}
.wrap--narrow{max-width:900px}
section.pad{padding-block:clamp(4rem,2.5rem + 5vw,7.5rem)}
section.pad--tight{padding-block:clamp(3rem,2rem + 3vw,5rem)}
.center{text-align:center}
.center p{margin-inline:auto}
.bg-2{background:var(--bg-2)}

/* ---------- Type ---------- */
h1,h2,h3,h4{font-family:var(--disp);font-weight:600;line-height:1.02;letter-spacing:-.035em}
h1{font-size:clamp(2.6rem,1.5rem + 4.6vw,5.2rem)}
h2{font-size:clamp(2rem,1.4rem + 2.8vw,3.6rem)}
h3{font-size:clamp(1.3rem,1.15rem + .8vw,1.9rem)}
h4{font-size:1.12rem;letter-spacing:-.02em}
p{max-width:64ch}
.lead{font-size:clamp(1.06rem,1rem + .5vw,1.35rem);line-height:1.45;color:var(--muted);font-weight:400}
.muted{color:var(--muted)}
.kicker{font-size:.82rem;font-weight:600;letter-spacing:.02em;color:var(--muted-2);display:block;margin-bottom:1rem}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.45em;font-family:var(--disp);font-size:1rem;font-weight:500;letter-spacing:-.01em;padding:.85em 1.7em;border-radius:100px;border:1.5px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease;cursor:pointer}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:#2b2b28}
.btn--line{border-color:var(--ink);color:var(--ink)}
.btn--line:hover{background:var(--bg-2)}
.btn--white{background:#fff;color:var(--ink)}
.btn--white:hover{background:#e9e9e5}
.btn--sm{font-size:.94rem;padding:.6em 1.3em}
.btn .ar{transition:transform .16s ease}
.btn:hover .ar{transform:translateX(3px)}

/* ---------- Header ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:66px}
.brand{font-family:var(--disp);font-weight:600;font-size:1.22rem;letter-spacing:-.035em;display:flex;align-items:center;gap:.55rem;white-space:nowrap}
.dots{display:flex;gap:3px}
.dots i{width:7px;height:7px;border-radius:50%;display:block}
nav.main{display:flex;align-items:center;gap:1.6rem;font-size:.95rem;font-weight:500}
nav.main a.lnk{color:var(--ink-2);opacity:.82}
nav.main a.lnk:hover,nav.main a.lnk[aria-current="page"]{opacity:1}
nav.main a.lnk[aria-current="page"]{text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1.5px}
.lang{display:flex;align-items:center;gap:.4rem;font-size:.86rem;color:var(--muted);border-left:1px solid var(--line);padding-left:1.1rem}
.lang a[aria-current="true"]{color:var(--ink);font-weight:600}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:100px;background:#fff;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:11px;width:18px;height:1.5px;background:var(--ink);content:"";transition:.2s}
.nav-toggle span{top:20px}
.nav-toggle span::before{top:-6px;left:0}
.nav-toggle span::after{top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg) translate(4px,4px)}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg) translate(4px,-4px)}
@media(max-width:940px){
  .nav-toggle{display:block}
  nav.main{position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:.5rem var(--pad-x) 1.25rem;display:none}
  nav.main.open{display:flex}
  nav.main a.lnk{padding:.75rem 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  nav.main .btn{margin-top:1rem;justify-content:center}
  .lang{border-left:0;padding-left:0;margin-top:1rem}
}

/* ---------- Hero (home) ---------- */
.hero{padding-block:clamp(3.5rem,2rem + 7vw,7.5rem) clamp(3rem,2rem + 4vw,5.5rem)}
.hero h1{max-width:14ch;margin-inline:auto}
.hero .lead{margin-top:1.7rem;max-width:56ch}
.hero .cta{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;margin-top:2.2rem}
.hero .fine{font-size:.88rem;color:var(--muted-2);margin-top:1.4rem}

/* ---------- Hero (inner pages) ---------- */
.hero-inner{padding-block:clamp(2.5rem,2rem + 3vw,4.5rem) clamp(2rem,1.5rem + 2vw,3.5rem);border-bottom:1px solid var(--line)}
.hero-inner h1{font-size:clamp(2.2rem,1.5rem + 3vw,4rem);max-width:18ch}
.hero-inner .lead{margin-top:1.4rem;max-width:60ch}
.hero-inner .cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2rem}
.crumbs{font-size:.88rem;color:var(--muted-2);margin-bottom:1.4rem;display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.crumbs a:hover{color:var(--ink)}
.crumbs span{opacity:.6}
.badge{display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;font-weight:500;color:var(--muted);margin-bottom:1rem}
.badge i{width:10px;height:10px;border-radius:50%;display:block;flex:0 0 10px}

/* ---------- Showcase tiles ---------- */
.showcase{margin-top:clamp(3rem,2rem + 4vw,5rem);display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:860px){.showcase{grid-template-columns:1fr}}
.sc{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3.1;padding:1.6rem;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;transition:transform .2s ease}
.sc:hover{transform:translateY(-3px)}
.sc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(0,0,0,.42) 100%)}
.sc>*{position:relative;z-index:1}
.sc .tag{font-size:.8rem;font-weight:500;opacity:.9;margin-bottom:.3rem}
.sc .nm{font-family:var(--disp);font-size:1.6rem;font-weight:600;letter-spacing:-.03em}
.sc .go{font-size:.88rem;opacity:.92;margin-top:.35rem}
.sc--doc{background:linear-gradient(150deg,#2f68f0,#123bb0 55%,#0a2570)}
.sc--mkt{background:linear-gradient(150deg,#e08a5f,#c2603a 55%,#8c3f22)}
.sc--est{background:linear-gradient(150deg,#3b6353,#1a2e26 55%,#0e1a15)}
.sc-grid{position:absolute;inset:0;opacity:.16;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:44px 44px}

/* ---------- Facts band ---------- */
.stats{background:var(--bg-2);padding-block:clamp(3rem,2rem + 3vw,4.5rem)}
.stats .row{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}
@media(max-width:760px){.stats .row{grid-template-columns:1fr 1fr;gap:2.5rem 1rem}}
.stat .n{font-family:var(--disp);font-size:clamp(2.2rem,1.6rem + 2.2vw,3.4rem);font-weight:600;letter-spacing:-.045em;line-height:1}
.stat .l{font-size:.92rem;color:var(--muted);margin-top:.5rem}

/* ---------- Business cards ---------- */
.cards{display:grid;gap:16px;margin-top:clamp(2.5rem,2rem + 2vw,4rem)}
.card{background:var(--bg-2);border-radius:var(--r-lg);padding:clamp(1.75rem,1.25rem + 2vw,3.25rem);display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(1.5rem,3vw,4rem);align-items:center;transition:background .18s ease}
.card:hover{background:var(--bg-3)}
@media(max-width:900px){.card{grid-template-columns:1fr;gap:1.5rem}}
.card h3{margin-bottom:.65rem}
.card .claim{font-size:1.06rem;color:var(--ink-2);max-width:32ch}
.card p{color:var(--muted);font-size:1rem}
.card .more{display:inline-flex;align-items:center;gap:.4em;font-weight:500;margin-top:1.4rem;border-bottom:1.5px solid var(--ink);padding-bottom:2px}
.sites{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.5rem}
.chip{font-size:.88rem;font-weight:500;background:#fff;border:1px solid var(--line);border-radius:100px;padding:.45em 1.05em;transition:border-color .16s ease}
.chip:hover{border-color:var(--ink)}
.chip--plain{background:var(--bg-2)}

/* ---------- Alternating rows ---------- */
.row2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,4vw,5rem);align-items:center;padding-block:clamp(2rem,1.5rem + 2vw,3.5rem)}
@media(max-width:860px){.row2{grid-template-columns:1fr}}
.row2--flip .visual{order:-1}
.visual{border-radius:var(--r-lg);aspect-ratio:16/11;background:var(--bg-2);position:relative;overflow:hidden;display:grid;place-items:center;padding:2rem}
.visual .big{font-family:var(--disp);font-size:clamp(1.9rem,1.3rem + 2.6vw,3.4rem);font-weight:600;letter-spacing:-.045em;line-height:1.05;text-align:center;max-width:14ch;color:var(--ink)}
.visual .sub{position:absolute;bottom:1.5rem;left:0;right:0;text-align:center;font-size:.86rem;color:var(--muted-2)}
.visual--lines::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px);background-size:100% 34px;opacity:.85}
.visual--dots::before{content:"";position:absolute;inset:0;background-image:radial-gradient(var(--line) 1.4px,transparent 1.4px);background-size:22px 22px}
.visual>*{position:relative;z-index:1}

/* ---------- Steps / feature grid ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-top:clamp(2.5rem,2rem + 2vw,3.5rem)}
@media(max-width:860px){.steps{grid-template-columns:1fr}}
.steps--2{grid-template-columns:repeat(2,1fr)}
@media(max-width:760px){.steps--2{grid-template-columns:1fr}}
.step{background:#fff;padding:clamp(1.5rem,1.2rem + 1.4vw,2.4rem)}
.bg-2 .step{background:var(--bg)}
.step .n{font-family:var(--disp);font-size:.9rem;font-weight:600;color:var(--muted-2);margin-bottom:1.1rem}
.step h4{margin-bottom:.5rem}
.step p{font-size:.96rem;color:var(--muted)}

/* ---------- Prose ---------- */
.prose{max-width:68ch}
.prose h2{font-size:clamp(1.6rem,1.3rem + 1.4vw,2.3rem);margin-top:2.75rem;margin-bottom:1rem}
.prose h3{font-size:1.3rem;margin-top:2rem;margin-bottom:.6rem}
.prose p{margin-bottom:1rem;color:var(--ink-2)}
.prose p.muted{color:var(--muted)}
.prose ul{margin:0 0 1.25rem 1.1rem;padding:0;color:var(--ink-2)}
.prose li{margin-bottom:.5rem}
.prose a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--muted-2)}
.prose a:hover{text-decoration-color:var(--ink)}
.prose>*:first-child{margin-top:0}

/* ---------- Definition table ---------- */
.dl{border-top:1px solid var(--line);margin-top:1.5rem}
.dl .r{display:grid;grid-template-columns:220px 1fr;gap:1.5rem;padding-block:.95rem;border-bottom:1px solid var(--line)}
@media(max-width:640px){.dl .r{grid-template-columns:1fr;gap:.2rem}}
.dl .k{color:var(--muted);font-size:.95rem}
.dl .v{font-weight:500}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-inline:auto;margin-top:clamp(2rem,1.5rem + 2vw,3rem);border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:1.4rem 2.5rem 1.4rem 0;font-family:var(--disp);font-size:1.15rem;font-weight:500;letter-spacing:-.02em;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.4rem;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--muted)}
.faq details[open] summary::after{content:"\2013"}
.faq p{padding-bottom:1.5rem;color:var(--muted);max-width:70ch}

/* ---------- CTA band ---------- */
.band{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:clamp(2.5rem,2rem + 3vw,5rem);text-align:center}
.band h2{max-width:18ch;margin-inline:auto}
.band p{color:rgba(255,255,255,.7);margin:1.2rem auto 0;max-width:52ch}
.band .cta{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;margin-top:2rem}
.band .addr{margin-top:2.5rem;font-size:.88rem;color:rgba(255,255,255,.55);line-height:1.9}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--line);padding-block:clamp(3rem,2rem + 2vw,4.5rem) 1.75rem;margin-top:clamp(3rem,2rem + 3vw,5rem)}
footer.site .cols{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:2rem}
@media(max-width:900px){footer.site .cols{grid-template-columns:1fr 1fr}}
footer.site h5{font-size:.86rem;font-weight:600;margin-bottom:1rem}
footer.site ul{list-style:none;padding:0}
footer.site li{margin-bottom:.55rem}
footer.site li a{font-size:.93rem;color:var(--muted)}
footer.site li a:hover{color:var(--ink)}
.legal{border-top:1px solid var(--line);margin-top:3rem;padding-top:1.4rem;font-size:.85rem;color:var(--muted-2);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between}