/* A24 Systems — Praxis-Startseite zahn.a24.systems. Schriften liegen auf dem eigenen Server. */
@font-face{font-family:"Archivo";font-weight:500;font-display:swap;src:url("fonts/archivo-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Archivo";font-weight:600;font-display:swap;src:url("fonts/archivo-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Archivo";font-weight:700;font-display:swap;src:url("fonts/archivo-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-display:swap;src:url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:500;font-display:swap;src:url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-display:swap;src:url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:400;font-display:swap;src:url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:500;font-display:swap;src:url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2")}

:root{
  --ground:#080A0E;--ground-2:#0C1017;
  --surface:rgba(18,24,34,.82);--surface-2:rgba(23,30,42,.92);
  --line:rgba(255,255,255,.09);--line-strong:rgba(255,255,255,.17);
  --ink:#EEF1F6;--ink-2:#A3ACBC;--ink-3:#6B7588;
  --gold:#E3A84C;--gold-2:#F2C173;--gold-dim:rgba(227,168,76,.13);
  --scan:#BFD8FF;--signal:#4FD598;--warn:#E3A84C;--alarm:#E06B5A;
  --f-display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --f-body:"IBM Plex Sans","Segoe UI",Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --r:14px;--gut:clamp(16px,3.2vw,40px);--max:1480px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;color-scheme:dark}
body{margin:0;background:var(--ground);color:var(--ink);font:400 15.5px/1.55 var(--f-body);min-height:100vh;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(1200px 620px at 78% 18%,rgba(227,168,76,.075),transparent 60%),
    radial-gradient(900px 560px at 8% 92%,rgba(191,216,255,.05),transparent 60%),
    linear-gradient(var(--line) 1px,transparent 1px) 0 0/56px 56px,
    linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 60% 30%,#000 25%,transparent 78%);mask-image:radial-gradient(ellipse at 60% 30%,#000 25%,transparent 78%);opacity:.55}
a{color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.wrap{position:relative;z-index:1;max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.mono{font-family:var(--f-mono)}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Kopfzeile ---------- */
.top{display:flex;align-items:center;gap:20px;height:72px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(150deg,#1d2534,#0e121a);border:1px solid var(--line-strong);font:700 14px var(--f-display);letter-spacing:-.03em;color:var(--gold)}
.brand-txt{line-height:1.1}
.brand-txt b{font:600 16px var(--f-display);letter-spacing:-.02em;display:block}
.brand-txt span{font:400 9.5px var(--f-mono);letter-spacing:.24em;color:var(--ink-3);text-transform:uppercase}
.top-mid{margin-left:auto;display:flex;align-items:center;gap:8px;font:400 12px var(--f-mono);color:var(--ink-3);letter-spacing:.06em}
.dot{width:8px;height:8px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(79,213,152,.15);flex:0 0 auto}
.dot.off{background:var(--alarm);box-shadow:0 0 0 3px rgba(224,107,90,.18)}

/* ---------- Knöpfe ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:10px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink);font:500 14.5px var(--f-body);text-decoration:none;cursor:pointer;transition:background .18s,border-color .18s,transform .18s;white-space:nowrap}
.btn:hover{border-color:rgba(255,255,255,.3);background:#1c2433}
.btn:active{transform:translateY(1px)}
.btn svg{width:17px;height:17px;flex:0 0 auto}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#1a1204;font-weight:600}
.btn-gold:hover{background:var(--gold-2);border-color:var(--gold-2)}
.btn-wa{background:#1f8f5c;border-color:#26a56b;color:#fff}
.btn-wa:hover{background:#25a86c;border-color:#2fc07d}
.btn-sm{padding:8px 13px;font-size:13.5px;border-radius:9px}
.btn[disabled]{opacity:.55;cursor:default}

/* ---------- Hero: Uhr + 3D ---------- */
.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:24px;align-items:center;min-height:min(46vh,470px);padding:30px 0 10px}
.kicker{font:500 12px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.clock{font:600 clamp(76px,10.6vw,168px)/.92 var(--f-display);letter-spacing:-.045em;margin:14px 0 6px;font-variant-numeric:tabular-nums;display:flex;align-items:baseline}
.clock .sec{font-size:.34em;color:var(--ink-3);margin-left:.18em;letter-spacing:-.02em;width:1.25em}
.clock .colon{color:var(--gold);animation:blink 2s steps(1) infinite;margin:0 .02em}
@keyframes blink{50%{opacity:.35}}
.date{font:500 clamp(19px,1.9vw,27px) var(--f-display);letter-spacing:-.01em;color:var(--ink)}
.greet{color:var(--ink-2);margin-top:4px;font-size:16px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);font:400 12.5px var(--f-mono);color:var(--ink-2)}
.chip b{color:var(--ink);font-weight:500}
.chip.ok .dot{background:var(--signal)}
.chip.warn{border-color:rgba(227,168,76,.45)} .chip.warn .dot{background:var(--warn);box-shadow:0 0 0 3px rgba(227,168,76,.18)}
.chip.bad{border-color:rgba(224,107,90,.55);color:#f2c3bb} .chip.bad .dot{background:var(--alarm);box-shadow:0 0 0 3px rgba(224,107,90,.2)}
.chip.wait .dot{background:var(--ink-3);box-shadow:none}

.stage{position:relative;height:min(46vh,470px);min-height:330px}
#zahn3d{position:absolute;inset:0}
#zahn3d canvas{display:block;opacity:0;transition:opacity 1.2s}
#zahn3d.ready canvas{opacity:1}
#zahn3d.no3d{background:url("favicon.svg") center/38% no-repeat;opacity:.85}
.hud{position:absolute;font:400 10.5px var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);pointer-events:none}
.hud b{color:var(--scan);font-weight:500}
.hud.tl{top:14px;left:6px}.hud.tr{top:14px;right:6px;text-align:right}.hud.bl{bottom:12px;left:6px}.hud.br{bottom:12px;right:6px;text-align:right}
.corner{position:absolute;width:18px;height:18px;border-color:rgba(227,168,76,.5);border-style:solid;pointer-events:none}
.corner.a{top:0;left:0;border-width:1px 0 0 1px}.corner.b{top:0;right:0;border-width:1px 1px 0 0}.corner.c{bottom:0;left:0;border-width:0 0 1px 1px}.corner.d{bottom:0;right:0;border-width:0 1px 1px 0}

/* ---------- Karten ---------- */
.sec-h{display:flex;align-items:baseline;gap:14px;margin:34px 0 14px}
.sec-h h2{font:600 13px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-2);margin:0}
.sec-h span{flex:1;height:1px;background:var(--line)}
.grid{display:grid;gap:16px}
.g-tools{grid-template-columns:1.55fr 1fr 1fr 1fr}
.g-main{grid-template-columns:1.25fr 1fr 1fr}
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:flex;flex-direction:column;gap:12px;min-width:0;backdrop-filter:blur(6px)}
.card h3{font:600 19px/1.2 var(--f-display);letter-spacing:-.015em;margin:0}
.card p{margin:0;color:var(--ink-2);font-size:14.5px}
.card .tag{font:500 10.5px var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.card .act{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px;padding-top:4px}
.ico{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--gold-dim);color:var(--gold);border:1px solid rgba(227,168,76,.22)}
.ico svg{width:21px;height:21px}
.ico.blue{background:rgba(191,216,255,.08);color:var(--scan);border-color:rgba(191,216,255,.18)}
.card-hd{display:flex;align-items:center;gap:13px}

.card.feature{background:linear-gradient(155deg,rgba(227,168,76,.14),rgba(18,24,34,.85) 55%);border-color:rgba(227,168,76,.35)}
.steps{list-style:none;margin:2px 0 0;padding:0;display:grid;gap:8px;counter-reset:s}
.steps li{display:flex;gap:11px;align-items:flex-start;color:var(--ink-2);font-size:14.5px}
.steps li::before{counter-increment:s;content:counter(s);flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font:500 11.5px var(--f-mono);color:var(--gold);border:1px solid rgba(227,168,76,.45)}
.steps b{color:var(--ink);font-weight:500}

kbd{display:inline-block;min-width:30px;padding:4px 8px;border-radius:7px;border:1px solid var(--line-strong);border-bottom-width:3px;background:#141a24;font:500 13px var(--f-mono);color:var(--ink);text-align:center}
.keys{display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:var(--ink-3);font:400 13px var(--f-mono)}

/* ---------- Formular ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}
.form .full{grid-column:1/-1}
label.f{display:flex;flex-direction:column;gap:5px;font:500 11px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.f input,.f select,.f textarea{font:400 15px var(--f-body);color:var(--ink);background:#0d1219;border:1px solid var(--line-strong);border-radius:9px;padding:10px 12px;width:100%;letter-spacing:0;text-transform:none}
.f textarea{resize:vertical;min-height:74px}
.f input:focus,.f select:focus,.f textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-dim)}
.check{display:flex;gap:9px;align-items:center;color:var(--ink-2);font-size:14px;cursor:pointer}
.check input{accent-color:var(--gold);width:16px;height:16px}
.note{font-size:12.5px;color:var(--ink-3)}

/* ---------- Speedtest ---------- */
.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.meter{border:1px solid var(--line);border-radius:11px;padding:12px;background:rgba(8,10,14,.45)}
.meter .l{font:500 10.5px var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.meter .v{font:600 27px/1.1 var(--f-display);letter-spacing:-.02em;margin-top:5px;font-variant-numeric:tabular-nums}
.meter .u{font:400 11.5px var(--f-mono);color:var(--ink-3)}
.bar{height:4px;border-radius:4px;background:rgba(255,255,255,.07);margin-top:9px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--scan));transition:width .25s}
.speed-res{font-size:13.5px;color:var(--ink-2);min-height:21px}

/* ---------- Mein PC ---------- */
dl.kv{margin:0;display:grid;grid-template-columns:auto 1fr;gap:7px 14px;font-size:14px}
dl.kv dt{font:500 10.5px/2 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
dl.kv dd{margin:0;color:var(--ink);font-family:var(--f-mono);font-size:13.5px;overflow-wrap:anywhere}

/* ---------- Links ---------- */
.g-links{grid-template-columns:repeat(4,1fr)}
.lnk{display:flex;align-items:center;gap:13px;padding:16px 18px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface);text-decoration:none;transition:border-color .18s,background .18s}
.lnk:hover{border-color:var(--line-strong);background:var(--surface-2)}
.lnk b{display:block;font:600 15.5px var(--f-display);letter-spacing:-.01em}
.lnk span{display:block;font-size:13px;color:var(--ink-3)}
.lnk .arr{margin-left:auto;color:var(--ink-3);font-family:var(--f-mono)}

details.how{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:0 18px}
details.how summary{cursor:pointer;padding:15px 0;font:600 15.5px var(--f-display);list-style:none;display:flex;align-items:center;gap:10px}
details.how summary::-webkit-details-marker{display:none}
details.how summary::after{content:"+";margin-left:auto;font:400 20px var(--f-mono);color:var(--gold)}
details.how[open] summary::after{content:"–"}
.how-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 0 18px;color:var(--ink-2);font-size:14.5px}
.how-grid ol{margin:6px 0 0;padding-left:20px}
.copyurl{display:inline-flex;gap:8px;align-items:center;margin-top:8px}
.copyurl code{font:500 13.5px var(--f-mono);background:#0d1219;border:1px solid var(--line-strong);border-radius:7px;padding:5px 9px;color:var(--gold-2)}

/* ---------- Fuß ---------- */
.foot{margin-top:46px;border-top:1px solid var(--line);padding:26px 0 34px;display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;color:var(--ink-3);font-size:13.5px}
.foot .ad{display:flex;align-items:center;gap:12px;color:var(--ink-2)}
.foot .ad a{color:var(--gold);text-decoration:none;border-bottom:1px solid rgba(227,168,76,.4)}
.foot nav{margin-left:auto;display:flex;gap:18px}
.foot nav a{color:var(--ink-2);text-decoration:none}
.foot nav a:hover{color:var(--ink)}

.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;z-index:50;background:var(--surface-2);border:1px solid var(--line-strong);border-radius:10px;padding:10px 16px;font-size:14px;transition:opacity .2s,transform .2s}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- Rechtsseiten ---------- */
.legal{max-width:820px;padding:40px 0 20px}
.legal h1{font:600 clamp(32px,4vw,46px)/1.1 var(--f-display);letter-spacing:-.03em;margin:10px 0 8px}
.legal h2{font:600 20px var(--f-display);margin:34px 0 8px}
.legal p,.legal li{color:var(--ink-2)}
.legal table{border-collapse:collapse;width:100%;margin:8px 0}
.legal th{text-align:left;font:500 11px var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);padding:8px 16px 8px 0;vertical-align:top;width:190px}
.legal td{padding:8px 0;border-bottom:1px solid var(--line);color:var(--ink)}
.legal a{color:var(--gold)}

/* ---------- Responsiv ---------- */
@media (max-width:1180px){
  .g-tools{grid-template-columns:1fr 1fr}
  .g-main{grid-template-columns:1fr 1fr}
  .g-main .c-report{grid-column:1/-1}
  .g-links{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .hero{grid-template-columns:1fr;padding-top:22px;gap:0}
  .stage{height:330px;order:-1;min-height:0;margin:0 -8px}
  .g-tools,.g-main,.g-links{grid-template-columns:1fr}
  .top-mid .lbl{display:none}
  .how-grid{grid-template-columns:1fr}
  .foot nav{margin-left:0}
}
@media (max-width:520px){
  .form{grid-template-columns:1fr}
  .meters{grid-template-columns:1fr 1fr 1fr;gap:6px}
  .meter{padding:10px 8px}.meter .v{font-size:21px}
  .top .btn .t{display:none}
  .card{padding:18px}
  .legal th{display:block;width:auto;padding-bottom:0}.legal td{display:block}
}
@media (prefers-reduced-motion:reduce){.clock .colon{animation:none}*{transition:none!important}}

.top-mid{margin-left:auto}
.tk-link{margin-left:0}
@media (max-width:820px){.top-mid{display:none}.tk-link{margin-left:auto}}

/* Startseite einrichten */
.howbar{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;border:1px solid rgba(227,168,76,.35);border-radius:var(--r);background:linear-gradient(155deg,rgba(227,168,76,.1),var(--surface) 60%);padding:14px 18px}
.howbar b{display:block;font:600 15.5px var(--f-display)}
.howbar span{display:block;color:var(--ink-3);font-size:13.5px}
.howbar .act{display:flex;gap:8px;flex-wrap:wrap}