:root{
  --bg:#eef2f7;
  --panel:#111827;
  --panel-soft:#1f2937;
  --primary:#4f46e5;
  --primary-dark:#4338ca;
  --text:#111827;
  --muted:#64748b;
  --border:#d7deea;
  --error:#b91c1c;
  --error-bg:#fef2f2;
  --info:#1d4ed8;
  --info-bg:#eff6ff;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{background:var(--bg);color:var(--text)}
button,input{font:inherit}
.login-layout{min-height:100vh;display:grid;grid-template-columns:minmax(430px,1.05fr) minmax(430px,.95fr)}
.brand-panel{position:relative;overflow:hidden;background:
  radial-gradient(circle at 15% 18%,rgba(99,102,241,.32),transparent 31%),
  radial-gradient(circle at 82% 75%,rgba(14,165,233,.22),transparent 32%),
  linear-gradient(145deg,#0f172a,#111827 54%,#172554);
  color:#fff;padding:54px}
.brand-panel:after{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:38px 38px;mask-image:linear-gradient(to bottom,black,transparent)}
.brand-content{position:relative;z-index:2;max-width:720px;height:100%;display:flex;flex-direction:column}
.brand-mark{display:flex;align-items:center;gap:13px}
.brand-mark strong{display:block;font-size:23px;letter-spacing:.03em}
.brand-mark small{color:#cbd5e1}
.brand-icon{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:
  linear-gradient(145deg,#818cf8,#4f46e5);box-shadow:0 16px 36px rgba(79,70,229,.35);
  font-weight:900;color:#fff;letter-spacing:.02em}
.brand-message{margin:auto 0 36px;max-width:650px}
.eyebrow{margin:0 0 10px;text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:900;color:#818cf8}
.brand-message h1{font-size:clamp(38px,4vw,62px);line-height:1.08;margin:0 0 22px;letter-spacing:-.045em}
.brand-message>p:last-child{font-size:18px;line-height:1.7;color:#cbd5e1;max-width:580px}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.feature{display:flex;align-items:center;gap:8px;padding:11px 12px;border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.07);border-radius:12px;backdrop-filter:blur(10px)}
.feature span{font-size:18px}.feature strong{font-size:13px}
.brand-footer{margin:24px 0 0;color:#94a3b8;font-size:13px}
.form-panel{display:flex;align-items:center;justify-content:center;padding:40px;background:
  radial-gradient(circle at 85% 12%,rgba(99,102,241,.09),transparent 30%),#f8fafc}
.login-card{width:min(460px,100%);background:#fff;border:1px solid rgba(148,163,184,.28);
  border-radius:24px;padding:38px;box-shadow:0 28px 70px rgba(15,23,42,.13)}
.mobile-brand{display:none;align-items:center;gap:10px;margin-bottom:26px}
.card-head h2{margin:0 0 8px;font-size:32px;letter-spacing:-.03em}
.card-head>p:last-child{color:var(--muted);margin:0 0 28px}
form>label{display:block;font-weight:800;font-size:14px;margin:17px 0 8px}
.input-shell{display:flex;align-items:center;border:1px solid var(--border);border-radius:12px;background:#fff;
  transition:border-color .16s,box-shadow .16s}
.input-shell:focus-within{border-color:#6366f1;box-shadow:0 0 0 4px rgba(99,102,241,.12)}
.input-icon{padding-left:13px;opacity:.7}
.input-shell input{width:100%;border:0;outline:0;padding:13px 12px;background:transparent;min-width:0}
.password-toggle{border:0;background:transparent;padding:10px 13px;cursor:pointer;border-radius:9px}
.password-toggle:hover{background:#f1f5f9}
.form-options{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:17px 0 20px;font-size:13px}
.remember-row{display:flex;align-items:center;gap:8px;color:#475569;cursor:pointer}
.remember-row input{width:16px;height:16px;accent-color:var(--primary)}
.form-options a{color:var(--primary);font-weight:800;text-decoration:none}
.form-options a:hover{text-decoration:underline}
.login-button{width:100%;min-height:48px;border:0;border-radius:12px;background:linear-gradient(135deg,var(--primary),#6366f1);
  color:#fff;font-weight:900;cursor:pointer;box-shadow:0 13px 25px rgba(79,70,229,.25);
  display:flex;align-items:center;justify-content:center;gap:10px}
.login-button:hover{background:linear-gradient(135deg,var(--primary-dark),#4f46e5)}
.login-button:disabled{opacity:.7;cursor:wait}
.spinner{width:19px;height:19px;border:2px solid rgba(255,255,255,.38);border-top-color:#fff;border-radius:50%;
  animation:spin .75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.message{border-radius:11px;padding:11px 13px;margin:18px 0;font-size:14px;font-weight:700}
.error-message{color:var(--error);background:var(--error-bg);border:1px solid #fecaca}
.info-message{color:var(--info);background:var(--info-bg);border:1px solid #bfdbfe}
.security-note{display:flex;gap:10px;align-items:flex-start;margin:24px 0 0;padding:13px;border-radius:12px;background:#f8fafc;color:#64748b}
.security-note p{margin:0;font-size:12px;line-height:1.55}
.version{text-align:center;color:#94a3b8;font-size:12px;margin:20px 0 0}
@media(max-width:1050px){
  .login-layout{grid-template-columns:1fr}.brand-panel{display:none}.form-panel{min-height:100vh;padding:24px}.mobile-brand{display:flex}
}
@media(max-width:520px){
  .form-panel{padding:14px}.login-card{padding:26px 20px;border-radius:18px}.card-head h2{font-size:27px}
  .form-options{align-items:flex-start;flex-direction:column}.login-card{box-shadow:0 18px 45px rgba(15,23,42,.1)}
}


/* =========================================================
   ÚČTO AI Login v3.0 – animace, registrace, tmavý režim
   ========================================================= */

#aiNetwork{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.72}
.ai-orb-wrap{position:absolute;right:8%;top:18%;z-index:1;pointer-events:none;filter:drop-shadow(0 22px 42px rgba(79,70,229,.42))}
.ai-orb{position:relative;width:190px;height:190px;display:grid;place-items:center;animation:orbFloat 5.5s ease-in-out infinite}
.orb-core{position:relative;z-index:4;display:grid;place-items:center;width:88px;height:88px;border-radius:50%;
  background:radial-gradient(circle at 34% 28%,#fff 0 5%,#a5b4fc 12%,#6366f1 43%,#312e81 72%,#111827 100%);
  color:#fff;font-size:25px;font-weight:950;letter-spacing:.06em;box-shadow:
  0 0 28px rgba(129,140,248,.85),0 0 74px rgba(99,102,241,.55),inset 0 0 24px rgba(255,255,255,.38);
  animation:orbPulse 2.8s ease-in-out infinite}
.orb-core:after{content:"";position:absolute;inset:9px;border:1px solid rgba(255,255,255,.38);border-radius:50%}
.orb-ring{position:absolute;border-radius:50%;border:1px solid rgba(165,180,252,.55);box-shadow:0 0 18px rgba(99,102,241,.22)}
.ring-one{inset:26px;animation:ringSpin 9s linear infinite}
.ring-two{inset:8px;border-style:dashed;animation:ringSpinReverse 13s linear infinite}
.ring-three{inset:-13px;border-color:rgba(56,189,248,.26);animation:ringSpin 18s linear infinite}
.ring-one:before,.ring-two:before,.ring-three:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:#c4b5fd;box-shadow:0 0 15px #818cf8;top:-5px;left:50%}
.orb-shadow{width:120px;height:22px;border-radius:50%;background:rgba(15,23,42,.35);filter:blur(11px);margin:-14px auto 0;animation:shadowPulse 5.5s ease-in-out infinite}
@keyframes orbFloat{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-16px) rotate(2deg)}}
@keyframes orbPulse{0%,100%{transform:scale(1);filter:brightness(1)}50%{transform:scale(1.075);filter:brightness(1.18)}}
@keyframes ringSpin{to{transform:rotate(360deg)}}@keyframes ringSpinReverse{to{transform:rotate(-360deg)}}
@keyframes shadowPulse{0%,100%{transform:scaleX(1);opacity:.5}50%{transform:scaleX(.76);opacity:.28}}

.live-status{display:inline-flex;align-items:center;gap:9px;padding:10px 13px;margin-top:18px;border:1px solid rgba(255,255,255,.13);
  background:rgba(15,23,42,.28);border-radius:999px;width:max-content;max-width:100%;backdrop-filter:blur(9px)}
.live-status strong{font-size:13px;color:#e0e7ff;transition:opacity .25s ease,transform .25s ease}
.live-status strong.changing{opacity:0;transform:translateY(6px)}
.live-dot{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 6px rgba(52,211,153,.13),0 0 13px #34d399;animation:livePulse 1.7s ease-in-out infinite}
@keyframes livePulse{50%{transform:scale(.72);opacity:.65}}

.login-card-toolbar{display:flex;justify-content:flex-end;height:0;position:relative;z-index:4}
.theme-toggle{position:absolute;top:-21px;right:-21px;width:39px;height:39px;border:1px solid #dbe3ef;background:#f8fafc;border-radius:11px;cursor:pointer}
.login-divider{display:flex;align-items:center;gap:11px;margin:20px 0;color:#94a3b8;font-size:12px}
.login-divider:before,.login-divider:after{content:"";height:1px;background:#e2e8f0;flex:1}
.registration-button,.demo-button{width:100%;min-height:45px;border-radius:11px;font-weight:900;cursor:pointer}
.registration-button{display:flex;justify-content:center;align-items:center;gap:8px;border:1px solid #c7d2fe;background:#eef2ff;color:#3730a3}
.registration-button:hover{background:#e0e7ff}
.demo-button{margin-top:9px;border:0;background:transparent;color:#64748b}.demo-button:hover{background:#f8fafc;color:#4338ca}

/* Modal registrace */
.modal{position:fixed;inset:0;z-index:2000;background:rgba(2,6,23,.72);display:flex;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(9px)}
.modal[hidden]{display:none}
.registration-card{width:min(790px,96vw);max-height:94vh;overflow:auto;background:#fff;border:1px solid rgba(148,163,184,.34);border-radius:24px;padding:28px;box-shadow:0 35px 95px rgba(2,6,23,.36)}
.registration-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.registration-head h2{margin:0;font-size:30px}.registration-head>div>p:last-child{margin:6px 0 0;color:#64748b}
.modal-close{width:39px;height:39px;border:0;border-radius:10px;background:#f1f5f9;color:#334155;font-size:25px;cursor:pointer}
.registration-progress{display:flex;align-items:center;margin:25px 0}.progress-step{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:#e2e8f0;color:#64748b;font-weight:900}
.progress-step.active{background:#4f46e5;color:#fff;box-shadow:0 0 0 5px rgba(79,70,229,.12)}.progress-step.complete{background:#22c55e;color:#fff}
.registration-progress i{height:2px;background:#e2e8f0;flex:1}.registration-progress i.complete{background:#22c55e}
.registration-step h3{margin:0 0 16px;font-size:21px}.registration-step>label,.registration-grid label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:800;margin-top:13px}
.registration-step>input,.registration-step>select,.registration-grid input,.registration-inline input{width:100%;padding:11px 12px;border:1px solid #cbd5e1;border-radius:9px}
.registration-step>input:focus,.registration-step>select:focus,.registration-grid input:focus,.registration-inline input:focus{outline:0;border-color:#6366f1;box-shadow:0 0 0 4px rgba(99,102,241,.11)}
.registration-inline{display:grid;grid-template-columns:1fr auto;gap:8px}.small-action{border:0;border-radius:9px;padding:0 14px;background:#4f46e5;color:#fff;font-weight:850;cursor:pointer}
.registration-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.registration-password input{padding-left:13px}.registration-password .password-toggle{margin-left:auto}
.password-strength{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin-top:8px}.password-strength span{height:5px;border-radius:999px;background:#e2e8f0}.password-strength.level-1 span:nth-child(-n+1){background:#ef4444}.password-strength.level-2 span:nth-child(-n+2){background:#f59e0b}.password-strength.level-3 span:nth-child(-n+3){background:#3b82f6}.password-strength.level-4 span{background:#22c55e}
.registration-summary{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding:14px;border:1px solid #e2e8f0;background:#f8fafc;border-radius:12px}.summary-item{padding:8px}.summary-item small{display:block;color:#64748b;margin-bottom:3px}
.consent-row{display:flex!important;flex-direction:row!important;align-items:flex-start;gap:9px;margin-top:17px!important}.consent-row input{margin-top:3px}
.registration-actions{display:flex;align-items:center;gap:9px;margin-top:24px}.registration-actions>span{flex:1}.registration-actions button{border:0;border-radius:10px;padding:10px 15px;background:#4f46e5;color:#fff;font-weight:900;cursor:pointer}.registration-actions .secondary-action{background:#e2e8f0;color:#334155}

/* Tmavý vzhled */
body.dark-mode{--bg:#090f1d;--text:#e5e7eb;--muted:#94a3b8;--border:#2b3547;background:#090f1d}
body.dark-mode .form-panel{background:radial-gradient(circle at 85% 12%,rgba(99,102,241,.12),transparent 30%),#090f1d}
body.dark-mode .login-card,body.dark-mode .registration-card{background:#111827;border-color:#2f3a4c;color:#e5e7eb}
body.dark-mode .card-head>p:last-child,body.dark-mode .security-note,body.dark-mode .version,body.dark-mode .registration-head>div>p:last-child{color:#94a3b8}
body.dark-mode .input-shell,body.dark-mode .registration-step>input,body.dark-mode .registration-step>select,body.dark-mode .registration-grid input,body.dark-mode .registration-inline input{background:#0f172a;border-color:#334155;color:#f8fafc}
body.dark-mode .password-toggle,body.dark-mode .theme-toggle,body.dark-mode .modal-close,body.dark-mode .demo-button:hover{background:#1f2937;color:#e2e8f0}
body.dark-mode .security-note,body.dark-mode .registration-summary{background:#0f172a;border-color:#334155}
body.dark-mode .registration-button{background:#1e1b4b;border-color:#4338ca;color:#c7d2fe}
body.dark-mode .login-divider:before,body.dark-mode .login-divider:after{background:#334155}

@media(max-width:1250px){.ai-orb-wrap{right:4%;top:13%;transform:scale(.78)}}
@media(max-width:1050px){#aiNetwork,.ai-orb-wrap{display:none}}
@media(max-width:600px){.registration-card{padding:21px 17px;border-radius:17px}.registration-grid,.registration-summary{grid-template-columns:1fr}.registration-inline{grid-template-columns:1fr}.small-action{min-height:42px}}

/* Experience 8.3 – jednotné logo přihlášení */
.brand-wordmark-login{display:block;width:min(310px,72%);height:auto;filter:drop-shadow(0 10px 28px rgba(37,99,235,.18))}
.brand-wordmark-mobile{display:block;width:190px;height:auto}
.brand-mark{min-height:58px}
.brand-mark .brand-icon,.mobile-brand .brand-icon{display:none!important}
@media(max-width:900px){.brand-wordmark-mobile{width:170px}}

/* Experience 8.4 login brand visibility */
.brand-wordmark-login{
  display:block !important;
  width:min(360px,82%) !important;
  height:auto !important;
  opacity:1 !important;
  visibility:visible !important;
  filter:drop-shadow(0 12px 30px rgba(37,99,235,.24)) !important;
}
.brand-mark{min-height:92px}
.brand-wordmark-mobile{
  display:block !important;
  width:210px !important;
  height:auto !important;
  opacity:1 !important;
}


.brand-wordmark-login{
  display:none !important;
}

.experience85-login-logo{
  display:block !important;
  width:min(680px,95%) !important;
  max-height:285px !important;
  object-fit:contain !important;
  object-position:left center !important;
  border-radius:0 !important;
}

.experience85-mobile-logo{
  display:block !important;
  width:230px !important;
  max-width:90% !important;
  height:auto !important;
}