/* OnVision Brand System — dle Brand & UI Manuálu v1.0 · 2026 */
:root{
  --signal:#C8FF3D;      /* Logo · akcent */
  --action:#C8FF3D;      /* Akce · tlačítka */
  --deep:#A6E82A;        /* Active · stisk */
  --white:#FFFFFF;
  --navy:#0B0E07;        /* Tmavý inkoust — text na lime, NEflipuje */
  --bg:#0B0E07;          /* Podklad stránky (flipuje ve světlém režimu) */
  --navy-mid:#101408;    /* Sekundární plochy */
  --navy-card:#161C0D;   /* Karty / plochy */
  --card-bg:rgba(22,28,13,.72);   /* .card plocha (flipuje) */
  --topbar-bg:rgba(11,14,7,.7);   /* topbar (flipuje) */
  --violet-glow:#A6E82A; /* Gradient accent */
  --s-100:#EAFFC0; --s-200:#C8FF3D; --s-300:#A6E82A;
  --n-100:#333B22; --n-200:#242A18; --n-300:#191E12;
  --t-92:rgba(255,255,255,.92); --t-60:rgba(255,255,255,.6); --t-40:rgba(255,255,255,.4);
  --line-14:rgba(255,255,255,.14); --line-8:rgba(255,255,255,.08);
  --radius:4px;
  --font-display:"Sora",sans-serif;
  --font-text:"Inter",sans-serif;
  --font-logo:"Poppins",sans-serif;   /* wordmark — geometrický grotesk */
  --lime:#C8FF3D;                       /* Blyk akcent · live tečka */
}

/* ===== Světlý režim — přepnutí sémantických tokenů ===== */
:root[data-theme="light"]{
  --bg:#f2f4ee;              /* podklad stránky */
  --navy-mid:#ffffff;        /* boční panel / topbar / editor panel */
  --navy-card:#ffffff;       /* karty, vstupy */
  --white:#151a10;           /* text / hover inkoust (byl bílý) */
  --t-92:rgba(19,24,12,.92);
  --t-60:rgba(19,24,12,.60);
  --t-40:rgba(19,24,12,.42);
  --line-14:rgba(19,24,12,.16);
  --line-8:rgba(19,24,12,.09);
  --n-100:#e7ebda; --n-200:#eef1e6; --n-300:#eef1e6;  /* neutrální plochy (náhledy presetů) */
  --s-200:#5f9400;           /* akcent jako text — čitelný na světlé */
  --card-bg:rgba(255,255,255,.92);
  --topbar-bg:rgba(255,255,255,.72);
  /* --navy zůstává tmavý (inkoust na lime), --signal/--action/--lime zůstávají lime */
}

/* ===== Blyk wordmark — bl·y·k, lime „y", živá tečka nad „y" (+4%) ===== */
.blyk-logo{text-decoration:none}
.blyk-wm{font-family:var(--font-logo);font-weight:700;font-size:27px;letter-spacing:-.05em;
  line-height:1;color:var(--white);display:inline-block}
.blyk-wm .yd{position:relative;display:inline-block;line-height:1}
.blyk-wm .yl{color:var(--lime)}
.blyk-dot{position:absolute;left:54%;top:.02em;transform:translateX(-50%);
  width:.18em;height:.18em;border-radius:50%;background:var(--lime);
  box-shadow:0 0 7px rgba(200,255,61,.7);animation:blykBreathe 2.6s ease-in-out infinite}
.blyk-dot::after{content:"";position:absolute;inset:-3px;border-radius:50%;
  border:1.5px solid var(--lime);opacity:0}
.blyk-dot.active{background:var(--lime);animation:blykBreathe .7s ease-in-out infinite}
.blyk-dot.active::after{animation:blykRipple .9s ease-out infinite}
@keyframes blykBreathe{0%,100%{opacity:1;transform:translateX(-50%) scale(1)}
  50%{opacity:.42;transform:translateX(-50%) scale(.86)}}
@keyframes blykRipple{0%{transform:scale(.7);opacity:.75}100%{transform:scale(2.7);opacity:0}}
@media(prefers-reduced-motion:reduce){.blyk-dot,.blyk-dot::after{animation:none!important;opacity:1!important}}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-text);font-size:16px;line-height:1.78;color:var(--t-92);
  background:
    radial-gradient(ellipse 80% 60% at 92% 2%, rgba(200,255,61,.12), transparent 60%),
    radial-gradient(ellipse 65% 70% at 8% 90%, rgba(166,232,42,.10), transparent 60%),
    var(--navy);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.12;color:var(--white)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Kicker / Caption — Space Grotesk 11px 600 tracking .2em */
.kicker{font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--signal);display:flex;align-items:center;gap:12px}
.kicker::before{content:"";display:inline-block;width:28px;height:2px;background:var(--signal)}
.kicker.bare::before{display:none}

/* Logo — jednobarevný wordmark; na tmavém bílý, na světlém lime akcent (.logo.light). */
.logo{font-family:var(--font-logo);font-weight:600;font-size:23px;letter-spacing:-.01em;
  color:var(--white);white-space:nowrap;display:inline-flex;align-items:center;gap:10px}
.logo.light{color:var(--signal)}
.logo b{font-weight:600;color:inherit}
.logo-img{height:21px;width:auto;display:block}          /* oficiální wordmark z brand manuálu */
.logo .sub{align-self:flex-end;padding-bottom:2px}
.logo .sub{font-family:var(--font-display);font-size:10px;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--t-60);display:block;line-height:1.3}

/* Tlačítka — přesně dle manuálu: radius 4px, Inter 600, 13px, tracking .05em, padding 15×32 */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius);cursor:pointer;
  font-family:var(--font-text);font-weight:600;font-size:13px;letter-spacing:.05em;
  padding:15px 32px;border:1px solid transparent;transition:all .18s ease;white-space:nowrap}
.btn:active{transform:scale(.96)}
.btn-primary{background:var(--action);color:var(--navy);font-weight:700}
.btn-primary:hover{background:var(--deep);box-shadow:0 0 24px rgba(200,255,61,.4)}
.btn-ghost{background:transparent;color:var(--white);border-color:var(--line-14)}
.btn-ghost:hover{background:var(--white);color:var(--navy)}
.btn-nav{background:transparent;color:var(--t-60);border-color:var(--line-14);padding:11px 22px}
.btn-nav:hover{color:var(--white);border-color:rgba(255,255,255,.4)}
.btn .arrow{transition:transform .18s}
.btn:hover .arrow{transform:translateX(3px)}

/* Karty */
.card{background:var(--card-bg);border:1px solid var(--line-8);border-radius:var(--radius);
  backdrop-filter:blur(12px);transition:border-color .2s, transform .2s}
.card:hover{border-color:var(--line-14)}

/* Štítky */
.tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid var(--line-14);color:var(--t-60)}
.tag.accent{border-color:var(--action);color:var(--s-200);background:rgba(200,255,61,.14)}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--signal)}