/* ==========================================================================
   KEA 4.0 · Anmeldung „Kontrollportal“ – Entwurf 25.09.2026 (L4, nach L2-KONZEPT/L3-ANFORDERUNGEN)
   Ersetzt später frontend/auth/login.css. DOM-Vertrag von login.js bleibt (IDs, name,
   autocomplete, hidden, erster button = Submit, #message[data-error]).
   Tokens identisch zum Konfigurator (.kea-cfg, --kb-*) bzw. zur Website; Login-eigene: --kl-*.
   CSP (login-pages.js): nur 'self' – keine data:-URLs, keine Webfonts, keine Inline-Styles.
   Bewegung nur unter prefers-reduced-motion:no-preference; Endlage = Ruhelage.
   ========================================================================== */

/* 1 · Tokens ------------------------------------------------------------- */
:root{
  --kb-grad:linear-gradient(90deg,#B4243B 0%,#E04B2A 38%,#F08A24 70%,#F6C24A 100%);
  --kl-grad-text:linear-gradient(95deg,#E04B2A 0%,#F08A24 50%,#F6C24A 100%);
  --kb-focus:#B8560A; --kb-accent:#BC3A1A;
  --kb-cta:#5BE68D; --kb-cta-hover:#43D97A; --kb-cta-ink:#103D24; --kb-cta-shadow:0 10px 28px rgba(82,219,132,.24);
  --kb-bg-2:#F6F7F9; --kb-surface:#FFFFFF; --kb-surface-2:#F2F4F7;
  --kb-ink:#0E1116; --kb-ink-2:#39424F; --kb-muted:#646C7A;
  --kb-line:#E4E7EC; --kb-line-2:#D4D9E0; --kb-control-line:#808998;
  --kb-danger-bg:#FDF1EE; --kb-danger-line:#EBB2A3; --kb-danger-ink:#BC3A1A;
  --kb-ok-bg:#ECF9F1; --kb-ok-line:#9FDCB9; --kb-ok-ink:#1C7A47;
  --kb-shadow-h:0 2px 6px rgba(14,17,22,.05),0 20px 48px rgba(14,17,22,.11);
  --kb-r-field:12px; --kb-r-m:16px; --kb-r-l:24px; --kb-r-pill:999px;
  --kb-font:-apple-system,BlinkMacSystemFont,"Segoe UI Variable Text","Segoe UI",system-ui,Roboto,"Noto Sans","Helvetica Neue",Arial,sans-serif;
  --kb-ease:cubic-bezier(.22,.68,.24,1);
  --kl-autofill:#FFF8EE;
  --kl-forest:#0B1F1E; --kl-on-dark:#EEF5EE; --kl-on-dark-2:#B3C7BB; --kl-warm:#F6B456;
  --kl-gutter:clamp(16px,4vw,40px);
  color-scheme:light;
  font-family:var(--kb-font); font-size:16px; line-height:1.55; color:var(--kb-ink);
  background:var(--kb-bg-2); -webkit-text-size-adjust:100%; font-synthesis:none;
}

/* 2 · Basis -------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
body{
  position:relative;margin:0;min-height:100vh;min-height:100svh;
  background:
    radial-gradient(ellipse 55% 45% at 100% 0%,rgba(246,194,74,.13),transparent 70%),
    radial-gradient(ellipse 45% 40% at 0% 100%,rgba(180,36,59,.06),transparent 70%),
    var(--kb-bg-2);
  -webkit-font-smoothing:antialiased;
}
p{margin:0}
h1,h2{margin:0;color:var(--kb-ink)}
img,svg{max-width:100%}
:focus-visible{outline:3px solid var(--kb-focus);outline-offset:3px;border-radius:6px}
::selection{background:#F6C24A;color:var(--kb-ink)}

/* Markenstreifen ganz oben (wie kea.ch): Leitung + einmaliger Impuls, rein per Pseudo-Elementen */
body::before{content:"";position:absolute;z-index:2;top:0;left:0;right:0;height:4px;background:var(--kb-grad);pointer-events:none}
body::after{content:none}

/* 3 · Rahmen, Kopf, Fuss -------------------------------------------------- */
.entry-shell{width:min(100% - 2 * var(--kl-gutter),1120px);margin:0 auto;padding:clamp(20px,3.2vw,36px) 0 clamp(20px,3vw,32px)}
.entry-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:4px 0 clamp(16px,2.4vw,28px)}
.brand{display:inline-flex;align-items:center;min-height:44px;line-height:0}
.brand img{display:block;width:auto;height:44px;max-width:none}
.portal-label{
  display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:0 14px;
  border:1px solid var(--kb-line-2);border-radius:var(--kb-r-pill);background:var(--kb-surface);
  color:var(--kb-ink-2);font-size:13px;font-weight:650;letter-spacing:.02em;white-space:nowrap;
}
.portal-label::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--kb-grad)}

footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 16px;padding:16px 4px 0;color:var(--kb-ink-2);font-size:14px}
footer a{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;color:var(--kb-ink-2);font-weight:600;
  text-decoration:underline;text-decoration-color:var(--kb-accent);text-decoration-thickness:1.5px;text-underline-offset:3px;
}
footer a:hover{color:var(--kb-ink);text-decoration-thickness:2px}
.footer-mail{flex:none;width:16px;height:16px;color:var(--kb-accent)}

/* 4 · Karte --------------------------------------------------------------- */
.entry-card{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(400px,1fr);min-height:640px;overflow:hidden;
  border:1px solid var(--kb-line);border-radius:var(--kb-r-l);background:var(--kb-surface);box-shadow:var(--kb-shadow-h);
}

/* 5 · Markenfläche (Forest + Signet-Orbit) -------------------------------- */
.welcome-panel{
  position:relative;isolation:isolate;overflow:hidden;display:flex;flex-direction:column;
  padding:56px 52px 44px;background:var(--kl-forest);color:var(--kl-on-dark);
}
.welcome-panel::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:radial-gradient(ellipse 60% 55% at 85% 80%,rgba(70,127,94,.24),transparent 70%),
             radial-gradient(ellipse 55% 50% at 0% 0%,rgba(224,75,42,.10),transparent 70%);
}
.eyebrow{
  display:flex;align-items:center;gap:10px;margin:0 0 16px;
  color:var(--kb-accent);font-size:12px;font-weight:750;letter-spacing:.11em;line-height:1.4;text-transform:uppercase;
}
.eyebrow::before{content:"";flex:none;width:20px;height:2px;border-radius:2px;background:var(--kb-grad)}
.login-panel>.eyebrow{color:var(--kb-ink-2)}
.welcome-panel .eyebrow{color:var(--kl-warm)}
.welcome-title{
  margin:28px 0 20px;color:var(--kl-on-dark);font-size:clamp(36px,3.6vw,48px);font-weight:800;
  line-height:1.06;letter-spacing:-.035em;
}
.welcome-title span{color:var(--kl-warm)}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .welcome-title span{background:var(--kl-grad-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
}
.welcome-copy{max-width:34ch;color:var(--kl-on-dark-2);font-size:16px;line-height:1.7}
.welcome-signature{position:relative;margin-top:auto;padding-top:24px;color:var(--kl-on-dark-2);font-size:13px;letter-spacing:.1em}
.signet-orbit{position:absolute;z-index:-1;width:min(460px,80%);height:auto;right:-96px;bottom:-40px;overflow:visible}
.signet-outline{display:none}

/* 6 · Anmeldebereich ------------------------------------------------------ */
.login-panel{display:flex;flex-direction:column;justify-content:center;min-width:0;padding:56px clamp(40px,4.6vw,64px) 48px}
.login-panel>*{width:100%;max-width:420px;margin-inline:auto}
h1{margin:0 0 10px;font-size:clamp(30px,2.8vw,38px);font-weight:800;line-height:1.15;letter-spacing:-.025em;overflow-wrap:anywhere}
#intro{color:var(--kb-ink-2);font-size:16px}

form{display:grid;gap:8px;margin:28px auto 8px}
form[hidden]{display:none}
label{color:var(--kb-ink);font-size:16px;font-weight:650;line-height:1.3}
input{
  width:100%;min-height:52px;margin:0 0 12px;padding:12px 16px;
  border:1.5px solid var(--kb-control-line);border-radius:var(--kb-r-field);
  background:var(--kb-surface);color:var(--kb-ink);font:inherit;font-size:16px;
}
input:hover{border-color:var(--kb-ink-2)}
/* Fokus wie Konfigurator; transparente Outline bleibt für Forced Colors sichtbar */
input:focus{outline:2px solid transparent;outline-offset:2px;border-color:var(--kb-focus);box-shadow:0 0 0 2px var(--kb-focus)}
/* Autofill statt Browser-Blau (Regeln getrennt, damit ein unbekannter Selektor nicht alles kippt) */
input:-webkit-autofill{-webkit-box-shadow:0 0 0 100px var(--kl-autofill) inset;box-shadow:0 0 0 100px var(--kl-autofill) inset;-webkit-text-fill-color:var(--kb-ink);caret-color:var(--kb-ink)}
input:autofill{box-shadow:0 0 0 100px var(--kl-autofill) inset;-webkit-text-fill-color:var(--kb-ink);caret-color:var(--kb-ink)}
input:-webkit-autofill:focus{-webkit-box-shadow:0 0 0 100px var(--kl-autofill) inset,0 0 0 2px var(--kb-focus);box-shadow:0 0 0 100px var(--kl-autofill) inset,0 0 0 2px var(--kb-focus)}
input:autofill:focus{box-shadow:0 0 0 100px var(--kl-autofill) inset,0 0 0 2px var(--kb-focus)}
/* Feldfehler nach Nutzereingabe (native Validierung), ohne JS-Änderung */
input:user-invalid{border-width:2px;border-color:var(--kb-danger-ink);padding:11.5px 15.5px}
input[aria-invalid="true"]{border-width:2px;border-color:var(--kb-danger-ink);padding:11.5px 15.5px}
.hint{color:var(--kb-muted);font-size:14px;line-height:1.6}
#password-help{margin:-8px 0 12px}

/* Primärknopf = erster button jedes Formulars (nicht #install-app) */
form>button{
  display:flex;align-items:center;justify-content:center;gap:10px;min-height:56px;margin-top:8px;padding:12px 24px;
  border:1.5px solid transparent;border-radius:var(--kb-r-pill);background:var(--kb-cta);color:var(--kb-cta-ink);
  box-shadow:0 6px 20px rgba(82,219,132,.38),inset 0 0 0 1px rgba(16,61,36,.12);
  font:inherit;font-size:17px;font-weight:750;line-height:1.2;cursor:pointer;
}
form>button span{font-size:18px;font-weight:500;line-height:1}
form>button:hover{background:var(--kb-cta-hover);box-shadow:0 12px 30px rgba(82,219,132,.5),inset 0 0 0 1px rgba(16,61,36,.12)}
/* Laden: login.js setzt disabled – Fläche, Farbe und Kreis zeigen „läuft“ (ohne JS-Änderung) */
form>button:disabled{background:var(--kb-ok-bg);color:var(--kb-ok-ink);box-shadow:none;transform:none;cursor:progress}
form>button:disabled span{display:none}
form>button:disabled::after{
  content:"";flex:none;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(28,122,71,.25);border-top-color:currentColor;
}
form>a{
  justify-self:center;display:inline-flex;align-items:center;min-height:44px;padding:0 8px;
  color:var(--kb-ink);font-size:15px;font-weight:600;
  text-decoration:underline;text-decoration-color:var(--kb-accent);text-decoration-thickness:1.5px;text-underline-offset:4px;
}
form>a:hover{text-decoration-thickness:2px}

/* Meldung (#message, role=status): Fehler „!“, neutral „i“ – bewusst kein Haken */
#message{
  position:relative;margin-top:16px;padding:14px 16px 14px 48px;
  border:1px solid var(--kb-ok-line);border-radius:var(--kb-r-m);background:var(--kb-ok-bg);color:var(--kb-ok-ink);
  font-size:15px;font-weight:560;line-height:1.5;overflow-wrap:anywhere;
}
#message::before{
  content:"i";content:"i" / "";position:absolute;left:16px;top:14px;display:grid;place-items:center;width:20px;height:20px;
  border:2px solid currentColor;border-radius:50%;font:800 13px/1 var(--kb-font);
}
#message[data-error="true"]{border-color:var(--kb-danger-line);background:var(--kb-danger-bg);color:var(--kb-danger-ink)}
#message[data-error="true"]::before{content:"!";content:"!" / ""}
#message:empty{display:none}
/* login.js fokussiert #message: bewusst :focus, nicht nur :focus-visible */
#message:focus{outline:2px solid var(--kb-focus);outline-offset:3px}

.account-hint{margin-top:12px;padding-top:16px;border-top:1px solid var(--kb-line);text-align:center}

/* 7 · Bewegung (nur ohne reduced-motion) ---------------------------------- */
@media (prefers-reduced-motion:no-preference){
  body::before{clip-path:inset(0 100% 0 0);animation:kl-draw 1s var(--kb-ease) .18s forwards}
  body::after{
    content:"";position:fixed;z-index:3;top:-4px;left:0;width:90px;height:12px;border-radius:6px;pointer-events:none;
    background:linear-gradient(90deg,rgba(255,226,175,0),rgba(255,242,212,.6) 80%,#fff);filter:blur(1px);
    transform:translateX(-100%);opacity:0;
    animation:kl-run 1s var(--kb-ease) .18s forwards,kl-fade 1s linear .18s forwards;
  }
  .signet-outline{display:inline}
  .signet-outline>*{stroke-dasharray:1 1;stroke-dashoffset:1;animation:kl-line 1.4s var(--kb-ease) .4s forwards}
  .signet-outline{animation:kl-out .5s ease 1.9s forwards}
  .signet-fill{opacity:0;animation:kl-in .7s ease 1.5s forwards}
  input{transition:border-color .2s var(--kb-ease),box-shadow .2s var(--kb-ease)}
  form>button{transition:background-color .12s var(--kb-ease),transform .12s var(--kb-ease)}
  form>button:disabled::after{animation:kl-spin .8s linear infinite}
  .install-button{transition:border-color .12s var(--kb-ease)}
}
@media (prefers-reduced-motion:no-preference) and (hover:hover) and (pointer:fine){
  form>button:not(:disabled):hover{transform:translateY(-2px)}
  form>button:not(:disabled):active{transform:none}
}
@keyframes kl-draw{to{clip-path:inset(0 0 0 0)}}
@keyframes kl-run{to{left:100%}}
@keyframes kl-fade{0%{opacity:0}7%{opacity:1}86%{opacity:1}100%{opacity:0}}
@keyframes kl-line{to{stroke-dashoffset:0}}
@keyframes kl-in{to{opacity:1}}
@keyframes kl-out{to{opacity:0}}
@keyframes kl-spin{to{transform:rotate(360deg)}}

/* 8 · Tablet (600–1023 px, auch 200 % Zoom): Markenfläche als Kopfleiste der Karte */
@media (max-width:1023px){
  .entry-shell{width:min(100% - 48px,600px)}
  .entry-card{display:block;min-height:0}
  .welcome-panel{min-height:0;padding:32px 200px 28px 36px}
  .welcome-title{margin:18px 0 12px;font-size:32px}
  .welcome-copy{font-size:15px}
  .welcome-signature{display:none}
  .signet-orbit{width:300px;right:-70px;top:50%;bottom:auto;transform:translateY(-50%)}
  .login-panel{padding:36px 36px 32px}
}

/* 9 · Mobil (< 600 px): kompakte Markenleiste (≈ 96 px) über dem Formular; Felder + „Anmelden“ bleiben ohne Scrollen sichtbar */
@media (max-width:599px){
  .entry-shell{width:calc(100% - 32px);padding-top:16px}
  .entry-header{margin-bottom:12px}
  .brand img{height:34px}
  .portal-label{min-height:32px;padding:0 12px;font-size:12px}
  .entry-card{border-radius:20px}
  .welcome-panel{padding:16px 96px 16px 20px}
  .welcome-panel .eyebrow{margin-bottom:6px;letter-spacing:.06em;white-space:nowrap}
  .welcome-title{margin:0;font-size:20px;line-height:1.2;letter-spacing:-.02em}
  .welcome-copy{display:none}
  .signet-orbit{width:180px;right:-56px}
  .login-panel{padding:22px 20px 20px}
  h1{font-size:28px}
  form{margin-top:20px}
  .account-hint{font-size:14px}
  footer{font-size:14px}
}
/* ≤ 360 px oder kurzer Viewport: Leiste nur einzeilig */
@media (max-width:360px),(max-width:599px) and (max-height:700px){
  .welcome-panel{padding:11px 72px 11px 16px}
  .welcome-panel .eyebrow{margin:0}
  .welcome-panel .eyebrow::before{display:none}
  .welcome-title{display:none}
  .signet-orbit{width:116px;right:-38px}
}
@media (max-width:360px){
  .login-panel{padding:22px 16px 18px}
  h1{font-size:24px}
}

/* 10 · Geringe Höhe (Querformat, 200/400 % Zoom): Markenleiste einzeilig, Formular früh */
@media (max-height:560px) and (max-width:1023px){
  .entry-shell{padding-top:10px}
  .entry-header{margin-bottom:8px}
  .brand img{height:30px}
  .welcome-panel{padding:12px 76px 12px 16px}
  .welcome-panel .eyebrow{margin:0}
  .welcome-title,.welcome-copy,.welcome-signature{display:none}
  .signet-orbit{width:120px;right:-40px}
  .login-panel{padding:20px 20px 16px}
  .login-panel>.eyebrow{display:none}
  h1{font-size:24px}
  form{margin-top:16px}
  #message{margin-top:12px}
}

/* 10b · Desktop mit wenig Höhe (1440×900, 1366×768, 1280×800): alles inkl. Fusszeile bzw. Installationskarte im ersten Bildschirm (L5 D-1) */
@media (min-width:1024px) and (max-height:940px){
  .entry-shell{padding-top:18px;padding-bottom:12px}
  .entry-header{margin-bottom:14px}
  .entry-card{min-height:0}
  .welcome-panel{padding:44px 48px 36px}
  .welcome-title{margin:22px 0 16px}
  .login-panel{padding-top:36px;padding-bottom:28px}
  .login-panel>.eyebrow{margin-bottom:10px}
  form{margin-top:20px}
  input{margin-bottom:10px}
  .account-hint{margin-top:4px;padding-top:12px}
  .install-section{margin-top:12px;padding:12px 14px}
  footer{padding-top:8px}
}

/* 11 · Hochkontrast (Forced Colors) --------------------------------------- */
@media (forced-colors:active){
  body::before,.eyebrow::before,.portal-label::before{background:CanvasText}
  .welcome-title span{-webkit-text-fill-color:currentColor;background:none}
  form>button{border-color:ButtonText}
  form>button:disabled{border-color:GrayText;color:GrayText}
  #message{border-color:CanvasText}
  input:focus{outline-color:Highlight}
}