/* =========================================================
   TradeLink — dark luxury 2026
   Mobile-first. Rozšíření pro větší displeje jsou v @media
   (min-width). Struktura je připravená na pozdější animace:
   scény nesou data-scene, vrstvy data-depth a proměnnou
   --scene-progress nastavuje JS (viz app.js).
   ========================================================= */

/* ---------- tokeny ---------- */
:root{
  color-scheme:dark;

  --ink:#05070a;
  --charcoal:#0a0e13;
  --panel:#0e141bd9;
  --panel-solid:#0d1218;

  --fg:#eef1f4;
  --fg-dim:#c3cbd3;
  --muted:#8b959f;

  --line:#ffffff14;
  --line-2:#ffffff24;
  --metal:#ffffff33;

  --accent:#8fc0e8;
  --accent-dim:#8fc0e83d;
  --accent-bg:#8fc0e814;
  --warm:#e7c89a;

  --shell:min(1440px,100%);
  --gutter:22px;

  --step-0:1rem;
  --step-1:1.13rem;
  --step-2:clamp(1.35rem,4.4vw,1.6rem);
  --step-3:clamp(1.7rem,6vw,2.1rem);
  --step-4:clamp(2.1rem,8.5vw,3rem);

  --ease:cubic-bezier(.22,.61,.36,1);

  font-family:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-synthesis:none;
  -webkit-font-smoothing:antialiased;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}

body{
  margin:0;
  background:var(--ink);
  color:var(--fg);
  font-size:var(--step-0);
  line-height:1.6;
}

img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.03em;line-height:1.15}
p{margin:0}

.shell{width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- navigace ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:#05070ad9;
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav__bar{
  width:var(--shell);margin-inline:auto;padding:14px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.nav__brand{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;text-decoration:none}
.nav__toggle{
  display:grid;place-items:center;width:42px;height:42px;
  background:none;border:1px solid var(--line-2);border-radius:10px;
  color:var(--fg);cursor:pointer;padding:0;
}
.nav__toggle span{position:relative;display:block;width:17px;height:1.5px;background:currentColor}
.nav__toggle span::before,.nav__toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:1.5px;background:currentColor;
  transition:transform .25s var(--ease),opacity .2s linear;
}
.nav__toggle span::before{top:-6px}
.nav__toggle span::after{top:6px}
.nav__toggle[aria-expanded="true"] span{background:transparent}
.nav__toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.nav__menu{display:none;padding:6px var(--gutter) 20px;border-top:1px solid var(--line)}
.nav__menu.is-open{display:block}
.nav__menu a{
  display:block;padding:13px 0;text-decoration:none;color:var(--fg-dim);
  border-bottom:1px solid var(--line);font-size:.98rem;
}
.nav__menu a:last-child{border-bottom:0}
.nav__menu a.is-cta{color:var(--accent)}

/* ---------- tlačítka ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:52px;padding:0 28px;width:100%;
  font:inherit;font-size:1rem;font-weight:500;text-decoration:none;text-align:center;
  color:var(--ink);background:var(--fg);border:1px solid transparent;border-radius:999px;
  cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease);
}
.btn:hover{background:#fff;transform:translateY(-1px)}
.btn--ghost{background:none;color:var(--fg);border-color:var(--line-2)}
.btn--ghost:hover{background:#ffffff0f;border-color:var(--metal)}

.actions{display:flex;flex-direction:column;gap:12px}

/* ---------- scény ---------- */
.scene{position:relative;padding-block:64px;border-bottom:1px solid var(--line)}
.scene__kicker{
  font-size:.7rem;text-transform:uppercase;letter-spacing:.22em;
  color:var(--muted);margin-bottom:16px;
}
.scene h2{font-size:var(--step-3);margin-bottom:14px}
.scene__lead{color:var(--fg-dim);font-size:var(--step-1);max-width:62ch;margin-bottom:36px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero__media{position:relative;isolation:isolate}
.hero__media img{width:100%;height:clamp(300px,58svh,560px);object-fit:cover;object-position:center 42%}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,#05070a26 0%,#05070a80 55%,var(--ink) 100%);
}
.hero__copy{position:relative;padding-block:36px 56px}
.hero__eyebrow{
  font-size:.7rem;text-transform:uppercase;letter-spacing:.24em;color:var(--muted);
  margin-bottom:18px;
}
.hero h1{font-size:var(--step-4);margin-bottom:8px}
.hero__claim{
  display:block;font-weight:300;color:var(--fg-dim);
  font-size:clamp(1.4rem,5.6vw,2rem);letter-spacing:-.03em;margin-top:6px;
}
.hero__text{color:var(--fg-dim);max-width:58ch;margin:22px 0 32px;font-size:var(--step-1)}
.hero__note{margin-top:22px;color:var(--muted);font-size:.88rem}

/* ---------- karty ---------- */
.grid{display:grid;gap:14px}

.card{
  border:1px solid var(--line);border-radius:16px;padding:24px;
  background:linear-gradient(180deg,#ffffff08,#ffffff03);
}
.card h3{font-size:var(--step-1);margin-bottom:10px}
.card p{color:var(--muted);font-size:.94rem;line-height:1.65}
.card__index{display:block;font-size:.7rem;letter-spacing:.2em;color:var(--accent);margin-bottom:16px}

/* ---------- ceny ---------- */
.pricing__claim{
  font-size:var(--step-2);font-weight:300;line-height:1.35;letter-spacing:-.03em;
  margin-bottom:34px;max-width:26ch;
}
.pricing__claim strong{font-weight:600;color:var(--fg)}
.tag{
  display:inline-block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;margin-bottom:16px;
  border:1px solid var(--line-2);color:var(--muted);
}
.tag--free{border-color:#9fd7b833;background:#9fd7b810;color:#a8ddc0}
.tag--trial{border-color:var(--accent-dim);background:var(--accent-bg);color:var(--accent)}
.pricing__note{margin-top:30px;color:var(--muted);font-size:.88rem;max-width:64ch}

/* ---------- závěrečná výzva ---------- */
.closing{padding-block:72px;text-align:center;border-bottom:0}
.closing h2{font-size:var(--step-3);margin-bottom:12px}
.closing p{color:var(--fg-dim);margin-bottom:30px}
.closing .actions{justify-content:center}

/* =========================================================
   LOBBY — mezikrok mezi homepage a recepcí.
   .stage je rám scény, .stage__layer vrstvy s data-depth
   pro pozdější parallax / pohyb kamery.
   ========================================================= */
.stage{
  position:relative;min-height:100svh;display:grid;align-items:center;
  padding-block:80px;overflow:hidden;
  background:
    radial-gradient(120% 70% at 50% -10%,#16202b 0%,transparent 60%),
    radial-gradient(80% 50% at 50% 110%,#101820 0%,transparent 70%),
    var(--ink);
}
.stage__layer{position:relative;z-index:1}
.stage__layer--deep{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(90deg,transparent 0 8%,#ffffff08 8% 8.2%,transparent 8.2% 92%,#ffffff08 92% 92.2%,transparent 92.2%),
    linear-gradient(180deg,transparent 55%,#8fc0e807 100%);
}
.stage__glow{
  position:absolute;left:50%;top:12%;translate:-50% 0;z-index:0;
  width:min(620px,86vw);aspect-ratio:1;pointer-events:none;
  background:radial-gradient(circle,#8fc0e814 0%,transparent 65%);
}
.lobby__kicker{
  font-size:.7rem;text-transform:uppercase;letter-spacing:.26em;color:var(--accent);
  margin-bottom:20px;
}
.lobby h1{font-size:var(--step-4);margin-bottom:18px}
.lobby p{color:var(--fg-dim);max-width:52ch;margin-bottom:34px}

.floors{
  margin-top:44px;border:1px solid var(--line);border-radius:16px;
  padding:20px 22px;background:var(--panel);backdrop-filter:blur(10px);
}
.floors__head{
  font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
  margin-bottom:16px;
}
.floor{display:flex;align-items:center;gap:14px;padding:9px 0;color:var(--muted);font-size:.84rem;letter-spacing:.08em}
.floor__num{
  flex:none;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line-2);display:grid;place-items:center;
  font-size:.68rem;color:var(--fg-dim);
}
.floor.is-here{color:var(--accent)}
.floor.is-here .floor__num{border-color:var(--accent-dim);background:var(--accent-bg);color:var(--accent)}

.scroll-hint{
  margin-top:40px;display:flex;align-items:center;gap:10px;
  font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(180deg,var(--metal),transparent)}

/* =========================================================
   RECEPCE — obrázek je hlavní vizuál scény.
   Mobil: obrázek nahoře, volby pod ním jako vertikální bloky.
   Desktop: fullscreen scéna, panely vlevo a vpravo.
   ========================================================= */
.reception{position:relative;background:var(--ink)}
.reception__media{position:relative;isolation:isolate}
.reception__media img{width:100%;height:clamp(260px,44svh,420px);object-fit:cover;object-position:center 38%}
.reception__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,#05070a1a 0%,#05070a73 62%,var(--ink) 100%);
}
.reception__intro{position:relative;padding:26px var(--gutter) 0;text-align:center}
.reception__intro h1{font-size:var(--step-3);margin-bottom:12px}
.reception__intro p{color:var(--fg-dim);max-width:46ch;margin-inline:auto;font-size:.98rem}

.choices{
  position:relative;
  width:var(--shell);margin-inline:auto;
  padding:26px var(--gutter) 40px;
  display:grid;gap:22px;
}
.choices__col{display:flex;flex-direction:column;gap:12px}
.choices__head{
  font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
/* na mobilu jsou sloupce pod sebou — stačí jeden nadpis */
.choices__col:nth-of-type(2) .choices__head{display:none}

/* smoked glass panel s kovovým rámem */
.choice{
  position:relative;display:flex;align-items:center;gap:16px;
  padding:18px;border-radius:14px;text-decoration:none;color:var(--fg);
  border:1px solid var(--line-2);
  background:linear-gradient(180deg,#111820cc,#080c11cc);
  backdrop-filter:blur(12px);
  transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.choice::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,#ffffff0f,transparent 40%);
}
.choice:hover,.choice:focus-visible{
  border-color:var(--metal);transform:translateY(-2px);
  box-shadow:0 14px 40px #0009;
}
.choice__icon{flex:none;width:26px;height:26px;color:var(--accent)}
.choice__icon svg{width:100%;height:100%;stroke-width:1.4}
.choice__body{min-width:0}
.choice__title{display:block;font-size:1.02rem;font-weight:600;letter-spacing:-.02em}
.choice__desc{display:block;color:var(--muted);font-size:.86rem;line-height:1.5;margin-top:4px}
.choice__arrow{flex:none;margin-left:auto;width:17px;height:17px;color:var(--muted)}
.choice__arrow svg{width:100%;height:100%;stroke-width:1.5}
.choice:hover .choice__arrow{color:var(--accent)}

/* =========================================================
   VÝBĚR OBORU — krok 1 obory, krok 2 podobory, krok 3 výsledek
   ========================================================= */
.journey{padding-block:34px 70px}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.78rem;color:var(--muted);margin-bottom:26px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--fg)}
.crumbs__sep{opacity:.45}
.crumbs__now{color:var(--fg)}

.journey__role{
  display:inline-block;font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--accent-dim);background:var(--accent-bg);
  border-radius:999px;padding:6px 13px;margin-bottom:20px;
}
.journey h1{font-size:var(--step-3);margin-bottom:12px}
.journey__lead{color:var(--fg-dim);max-width:56ch;margin-bottom:32px}

.tiles{display:grid;gap:12px}
.tile{
  display:flex;align-items:center;gap:15px;width:100%;text-align:left;
  padding:20px 18px;border-radius:14px;cursor:pointer;text-decoration:none;
  font:inherit;color:var(--fg);
  border:1px solid var(--line);
  background:linear-gradient(180deg,#ffffff08,#ffffff03);
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.tile:hover{border-color:var(--line-2);background:#ffffff0d;transform:translateY(-2px)}
.tile__icon{flex:none;width:24px;height:24px;color:var(--accent)}
.tile__icon svg{width:100%;height:100%;stroke-width:1.4}
.tile__body{min-width:0}
.tile__title{display:block;font-weight:600;letter-spacing:-.02em}
.tile__desc{display:block;color:var(--muted);font-size:.85rem;margin-top:3px}
.tile__arrow{flex:none;margin-left:auto;color:var(--muted);width:16px;height:16px}
.tile__arrow svg{width:100%;height:100%;stroke-width:1.5}

.result{
  border:1px solid var(--line-2);border-radius:18px;padding:30px 24px;
  background:linear-gradient(180deg,#ffffff0a,#ffffff03);text-align:center;
}
.result h2{font-size:var(--step-2);margin-bottom:12px}
.result p{color:var(--fg-dim);max-width:52ch;margin-inline:auto}
.result__meta{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:.86rem}

/* ---------- patička ---------- */
.foot{
  border-top:1px solid var(--line);padding-block:28px;
  display:flex;flex-direction:column;gap:12px;
  color:var(--muted);font-size:.84rem;
}
.foot__brand{font-size:1.15rem;font-weight:700;color:var(--fg);text-decoration:none;letter-spacing:-.02em}

/* =========================================================
   VĚTŠÍ DISPLEJE
   ========================================================= */
@media (min-width:600px){
  :root{--gutter:32px}
  .actions{flex-direction:row;flex-wrap:wrap}
  .btn{width:auto}
  .grid--2{grid-template-columns:repeat(2,1fr)}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .foot{flex-direction:row;align-items:center;justify-content:space-between}
}

@media (min-width:900px){
  :root{--gutter:44px}
  .scene{padding-block:96px}
  .grid{gap:18px}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .hero__media img{height:min(74svh,680px)}
  .hero__copy{padding-block:48px 76px}
  .lobby__inner{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}
  .floors{margin-top:0}
  .tiles{grid-template-columns:repeat(3,1fr)}
  .journey{padding-block:52px 96px}
  .result{padding:44px 40px}
}

@media (min-width:1100px){
  .grid--4{grid-template-columns:repeat(4,1fr)}

  /* Nav: plné menu místo hamburgeru */
  .nav__toggle{display:none}
  .nav__menu{display:flex !important;align-items:center;gap:30px;padding:0;border-top:0}
  .nav__menu a{border-bottom:0;padding:0;font-size:.9rem;color:var(--muted)}
  .nav__menu a:hover{color:var(--fg)}

  /* Recepce jako fullscreen scéna s panely po stranách */
  .reception{height:100svh;min-height:640px;overflow:hidden}
  .reception__media{position:absolute;inset:0}
  .reception__media img{height:100%;object-position:center 45%}
  .reception__media::after{
    background:
      linear-gradient(90deg,#05070ab3 0%,transparent 26%,transparent 74%,#05070ab3 100%),
      linear-gradient(180deg,#05070a99 0%,transparent 30%,transparent 70%,#05070acc 100%);
  }
  .reception__intro{
    position:absolute;left:50%;top:34px;translate:-50% 0;z-index:2;
    width:min(560px,44vw);padding:0;
  }
  .reception__intro h1{font-size:var(--step-2)}
  .reception__intro p{font-size:.9rem}
  .choices{
    position:absolute;inset:0;z-index:2;
    width:100%;padding:0 clamp(28px,3.4vw,56px);
    grid-template-columns:minmax(250px,23%) 1fr minmax(250px,23%);
    align-content:center;gap:0;
  }
  .choices__col{justify-content:center}
  .choices__col:nth-of-type(1){grid-column:1}
  .choices__col:nth-of-type(2){grid-column:3}
  .choices__col:nth-of-type(2) .choices__head{display:block}
  .choice{padding:20px}
}

@media (min-width:1500px){
  .choices{padding-inline:clamp(56px,6vw,120px)}
  .choice__desc{font-size:.88rem}
}

/* ---------- ohled na pohybovou citlivost ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .btn:hover,.choice:hover,.tile:hover{transform:none}
}

/* =========================================================
   ÚČTY — registrace, přihlášení, obnova hesla
   ========================================================= */
.auth{padding-block:44px 72px;display:grid;justify-items:center}
.auth__card{
  width:100%;max-width:460px;
  border:1px solid var(--line);border-radius:18px;padding:30px 24px;
  background:linear-gradient(180deg,#ffffff08,#ffffff03);
}
.auth__card--wide{max-width:620px}
.auth__kicker{
  font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.auth h1{font-size:var(--step-3);margin-bottom:12px}
.auth__lead{color:var(--fg-dim);font-size:.96rem;margin-bottom:28px}
.auth__alt{margin-top:18px;color:var(--muted);font-size:.88rem;text-align:center}
.auth__alt a{color:var(--accent)}
.auth__billing{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  color:var(--muted);font-size:.82rem;text-align:center;
}

.form{display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.85rem;color:var(--fg-dim);font-weight:500}
.field__hint{font-size:.78rem;color:var(--muted);font-weight:400}
.field input{
  font:inherit;font-size:1rem;color:var(--fg);
  background:#ffffff08;border:1px solid var(--line-2);border-radius:11px;
  padding:13px 14px;min-height:50px;width:100%;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field input:hover{border-color:var(--metal)}
.field input:focus{outline:none;border-color:var(--accent);background:#ffffff0d}
.field input:disabled{opacity:.55}

.check{display:flex;gap:11px;align-items:flex-start;color:var(--muted);font-size:.86rem;line-height:1.5;cursor:pointer}
.check input{width:19px;height:19px;margin-top:2px;flex:none;accent-color:var(--accent)}

.form__status{
  border-radius:11px;padding:13px 15px;font-size:.88rem;line-height:1.55;margin:0;
  border:1px solid var(--line-2);color:var(--fg-dim);
}
.form__status--error{border-color:#e2909033;background:#e2909012;color:#f0b4b4}
.form__status--ok{border-color:#9fd7b833;background:#9fd7b810;color:#a8ddc0}

.detail{margin:0 0 26px;display:flex;flex-direction:column;gap:1px}
.detail__row{
  display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.detail dt{color:var(--muted);font-size:.85rem;margin:0}
.detail dd{margin:0;font-size:.92rem;text-align:right}

@media (min-width:600px){
  .auth__card{padding:38px 34px}
}

/* pole s tlačítkem vedle (ověření IČO) */
.field__row{display:flex;gap:10px;align-items:stretch}
.field__row input{flex:1;min-width:0}
.btn--inline{width:auto;min-height:50px;padding:0 20px;font-size:.92rem;flex:none;border-radius:11px}

/* výběr typu účtu při registraci */
.tiles--stack{grid-template-columns:1fr !important;margin-bottom:6px}

/* =========================================================
   PRÁVNÍ TEXTY
   ========================================================= */
.prose{padding-block:40px 80px;max-width:820px}
.prose__kicker{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.prose h1{font-size:var(--step-3);margin-bottom:16px}
.prose__lead{color:var(--fg-dim);font-size:var(--step-1);line-height:1.6}
.prose__date{color:var(--muted);font-size:.85rem;margin-top:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.prose h2{font-size:1.22rem;margin:44px 0 14px;letter-spacing:-.02em}
.prose h3{font-size:1rem;margin:26px 0 10px;color:var(--fg-dim)}
.prose p{color:var(--fg-dim);line-height:1.75;margin-bottom:14px;font-size:.96rem}
.prose ul{color:var(--fg-dim);line-height:1.75;margin:0 0 14px;padding-left:22px;font-size:.96rem}
.prose li{margin-bottom:8px}
.prose strong{color:var(--fg);font-weight:600}
.prose a{color:var(--accent)}
.prose .actions{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.prose__note{
  margin-top:40px;padding:18px 20px;border:1px solid var(--line-2);border-radius:12px;
  background:#ffffff05;font-size:.9rem;
}

/* místa k doplnění před spuštěním */
.todo{
  background:#e2c07a1f;border:1px dashed #e2c07a66;border-radius:5px;
  padding:1px 6px;color:#e8cd97;font-size:.9em;
}

.table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:.9rem;display:block;overflow-x:auto}
.table th,.table td{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);
  color:var(--fg-dim);vertical-align:top;
}
.table th{color:var(--fg);font-weight:600;white-space:nowrap}

.foot__links{display:flex;gap:18px;flex-wrap:wrap}
.foot__links a{color:var(--muted);text-decoration:none;font-size:.84rem;font-weight:400}
.foot__links a:hover{color:var(--fg)}