/* ============================================================
   DRONY CZECH (DCZ) — Design Kit
   Defense-tech / aerial target drones. Dark graphite + signal amber.
   Inline this whole file into the <style> of every preview card so
   each card is fully self-contained.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* surfaces */
  --bg:        #0a0c10;
  --bg-elev:   #12161d;
  --bg-elev-2: #181d26;
  /* ink */
  --ink:       #eef2f7;
  --ink-dim:   #c2ccd9;
  --muted:     #8b97a8;
  --faint:     #5a6573;
  /* lines */
  --line:      rgba(255,255,255,.09);
  --line-2:    rgba(255,255,255,.05);
  /* signal amber */
  --accent:    #f59e0b;
  --accent-hot:#f97316;
  --accent-dim:#b9770a;
  --accent-wash:rgba(245,158,11,.12);
  /* steel secondary */
  --steel:     #7c93ad;
  --steel-dim: #4a596b;
  /* status */
  --ok:        #34d399;
  --danger:    #ef4444;
  /* type */
  --font-display:'Archivo',system-ui,sans-serif;
  --font-text:'IBM Plex Sans',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;
  /* radii + shadow */
  --r-sm:6px; --r:10px; --r-lg:16px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.7);
  --shadow-amber:0 0 0 1px var(--accent-wash),0 18px 50px -18px rgba(245,158,11,.35);
}

*{box-sizing:border-box;margin:0;padding:0}
html{ -webkit-text-size-adjust:100%; }
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-text);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ---- typography ---- */
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:800;line-height:1.04;letter-spacing:-.02em}
h1{font-size:clamp(40px,5.5vw,66px)}
h2{font-size:clamp(30px,3.6vw,44px)}
h3{font-size:clamp(20px,2vw,26px);font-weight:700}
h4{font-size:17px;font-weight:700;letter-spacing:-.01em}
.display-xl{font-family:var(--font-display);font-weight:900;font-size:clamp(48px,7vw,88px);line-height:.98;letter-spacing:-.03em}
.lead{font-size:clamp(16px,1.35vw,19px);color:var(--muted);line-height:1.62}
p{color:var(--ink-dim)}
a{color:inherit;text-decoration:none}
strong{color:var(--ink)}

/* mono labels / HUD */
.mono{font-family:var(--font-mono);font-weight:500}
.eyebrow{
  font-family:var(--font-mono);font-weight:500;
  font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
.eyebrow.steel{color:var(--steel)} .eyebrow.steel::before{background:var(--steel)}
.muted{color:var(--muted)} .faint{color:var(--faint)}
.label{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* ---- layout helpers ---- */
.container{max-width:1180px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.grid{display:grid;gap:20px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:840px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}.container{padding:0 22px}}

/* ---- atmosphere: grid + glow + scanline ---- */
.atmo{position:absolute;inset:0;overflow:hidden;z-index:0;pointer-events:none}
.atmo .grid-bg{position:absolute;inset:-2px;
  background-image:linear-gradient(rgba(124,147,173,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,147,173,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 100% 80% at 70% 20%,#000 35%,transparent 100%)}
.atmo .glow{position:absolute;width:780px;height:780px;right:-220px;top:-280px;
  background:radial-gradient(circle,rgba(245,158,11,.16),transparent 62%);filter:blur(8px)}
.atmo .glow.cool{right:auto;left:-260px;top:auto;bottom:-300px;
  background:radial-gradient(circle,rgba(124,147,173,.10),transparent 62%)}
.noise{position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  font-family:var(--font-mono);font-weight:600;font-size:14px;letter-spacing:.02em;
  padding:14px 22px;border-radius:var(--r);border:1px solid transparent;
  transition:transform .15s ease,background .2s,border-color .2s,color .2s;
  text-transform:uppercase;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#0a0c10;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hot);border-color:var(--accent-hot)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{background:transparent;color:var(--danger);border-color:rgba(239,68,68,.4)}
.btn-danger:hover{background:rgba(239,68,68,.12)}
.btn.sm{padding:9px 14px;font-size:12px}
.btn.lg{padding:17px 28px;font-size:15px}
.btn .arr{transition:transform .15s} .btn:hover .arr{transform:translateX(3px)}

/* ---- cards ---- */
.card{
  position:relative;background:var(--bg-elev);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;transition:border-color .2s,transform .2s,background .2s}
.card:hover{border-color:rgba(245,158,11,.35);transform:translateY(-3px)}
.card .ic{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-wash);color:var(--accent);margin-bottom:18px}
.card .ic svg{width:22px;height:22px}
.card h4{margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
/* corner ticks for a "framed/targeted" feel */
.ticks::before,.ticks::after{content:"";position:absolute;width:12px;height:12px;
  border:1.5px solid var(--accent);opacity:.55}
.ticks::before{top:12px;left:12px;border-width:1.5px 0 0 1.5px}
.ticks::after{bottom:12px;right:12px;border-width:0 1.5px 1.5px 0}

/* ---- badges / tags ---- */
.badge{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;
  padding:6px 11px;border-radius:999px;border:1px solid var(--line);color:var(--ink-dim);background:var(--bg-elev)}
.badge svg{width:13px;height:13px;color:var(--accent)}
.badge.amber{border-color:rgba(245,158,11,.4);color:var(--accent);background:var(--accent-wash)}
.badge.ok{border-color:rgba(52,211,153,.4);color:var(--ok)}
.tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 9px;border-radius:5px;background:var(--bg-elev-2);color:var(--muted);border:1px solid var(--line-2)}

/* ---- reticle / target-lock motifs ---- */
.lock{position:relative;border:1.5px solid var(--accent);width:120px;height:120px}
.lock i,.lock b,.lock em,.lock s{position:absolute;width:16px;height:16px;border:2px solid var(--accent)}
.lock i{top:-2px;left:-2px;border-width:2px 0 0 2px}
.lock b{top:-2px;right:-2px;border-width:2px 2px 0 0}
.lock em{bottom:-2px;left:-2px;border-width:0 0 2px 2px}
.lock s{bottom:-2px;right:-2px;border-width:0 2px 2px 0}
.locktag{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--ok);text-transform:uppercase}

/* ---- spec table ---- */
.spec{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:13.5px}
.spec tr{border-bottom:1px solid var(--line-2)}
.spec td{padding:13px 4px} .spec td:first-child{color:var(--muted)} .spec td:last-child{text-align:right;color:var(--ink)}

/* ---- stat ---- */
.stat .n{font-family:var(--font-display);font-weight:800;font-size:clamp(34px,4vw,52px);
  color:var(--ink);letter-spacing:-.02em;line-height:1}
.stat .n .u{color:var(--accent)}
.stat .l{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-top:8px}

/* ---- form fields ---- */
.field{margin-bottom:16px}
.field label{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.input,.select,.textarea{width:100%;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--r);color:var(--ink);font-family:var(--font-text);font-size:15px;
  padding:13px 15px;transition:border-color .2s,box-shadow .2s}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-wash)}
.textarea{min-height:120px;resize:vertical}

/* ---- preview stage (for design-system cards) ---- */
.ds-stage{position:relative;min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:34px;padding:64px 40px;overflow:hidden}
.ds-head{position:relative;z-index:2;text-align:center;max-width:760px}
.ds-head .eyebrow{justify-content:center;margin-bottom:14px}
.ds-head p{color:var(--muted);margin-top:10px;font-size:15px}
.ds-canvas{position:relative;z-index:2;width:100%;max-width:1120px}
.ds-row{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:center}
.swatch{height:96px;border-radius:var(--r);border:1px solid var(--line);display:flex;
  align-items:flex-end;padding:10px;font-family:var(--font-mono);font-size:11px}