/* Datafolio — landing (apex datafolio.app). Statyczny, dark-first, paleta teal jak w apce.
   Samowystarczalny arkusz (landing jest osobnym deployem od aplikacji z web/). */

:root {
  --bg: #0b0f17;
  --bg-elev: #0e1420;
  --surface: #121a27;
  --surface-2: #0f1723;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text: #e6e9ef;
  --muted: #9aa4b2;
  --faint: #6b7480;
  --accent: #14b8a6;
  --accent-strong: #0d9488;
  --accent-soft: rgba(20, 184, 166, 0.14);
  --accent-line: rgba(20, 184, 166, 0.35);
  --pos: #22c55e;
  --neg: #f87171;
  --radius: 14px;
  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3 { letter-spacing: -0.022em; line-height: 1.12; margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--accent); }
.muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 11px;
  font-weight: 600;
  font-size: 0.96rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #04211d; }
.btn-primary:hover { background: var(--accent-strong); color: #eafffb; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--accent); color: #eafffb; }
.btn-sm { padding: 9px 15px; font-size: 0.9rem; border-radius: 10px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; }
.brand svg { display: block; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a.link { color: var(--muted); font-size: 0.92rem; }
.nav-links a.link:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 76px 0 40px; overflow: hidden; }
.hero::before {
  content: '';
  position: absolute;
  top: -220px; right: -160px;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.16), transparent 62%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 22px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.5rem); font-weight: 700; }
.hero .lead { margin: 20px 0 30px; font-size: 1.13rem; color: var(--muted); max-width: 33ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-note { margin-top: 18px; font-size: 0.85rem; color: var(--faint); max-width: 40ch; }

/* ---------- Product mock ---------- */
.mock {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}
.mock-bar { display: flex; align-items: center; gap: 7px; padding: 12px 15px; border-bottom: 1px solid var(--border); }
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); }
.mock-body { padding: 20px; }
.mock-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.mock-value { font-size: 2rem; font-weight: 700; margin: 4px 0 2px; }
.mock-delta { color: var(--pos); font-weight: 600; font-size: 0.92rem; }
.mock-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.mock-kpi { border: 1px solid var(--border); border-radius: 12px; padding: 11px 12px; }
.mock-kpi .k { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--faint); }
.mock-kpi .v { font-size: 1.02rem; font-weight: 700; margin-top: 3px; color: var(--pos); }
.mock-title { margin-left: 8px; font-size: 0.75rem; color: var(--faint); }
.mock-panel { border: 1px solid var(--border); border-radius: 12px; padding: 13px; }
.mock-pt { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--faint); margin-bottom: 10px; }
.mock-legend { display: flex; gap: 16px; margin-bottom: 10px; font-size: 0.72rem; color: var(--muted); }
.mock-legend i { display: inline-block; width: 14px; height: 0; vertical-align: middle; margin-right: 6px; }
.mock-legend .l-val { border-top: 2px solid var(--accent); }
.mock-legend .l-dep { border-top: 2px dashed #f59e0b; }
.mock-chart { width: 100%; height: 132px; display: block; }

/* ---------- Sections ---------- */
section { padding: 64px 0; }
.section-head { max-width: 620px; margin-bottom: 40px; }
.kicker { color: var(--accent); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.07em; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 700; margin: 12px 0 10px; }
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

/* ---------- Value cards ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 11px;
  background: var(--accent-soft); color: var(--accent); margin-bottom: 15px;
}
.card h3 { font-size: 1.16rem; font-weight: 600; margin-bottom: 8px; }
.card p { color: var(--muted); margin: 0; font-size: 0.97rem; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; background: var(--surface-2); }
.step .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--accent); color: #04211d; font-weight: 700; margin-bottom: 14px;
}
.step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.step p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* ---------- AI spotlight ---------- */
.ai { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-elev); }
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.ai-grid h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 700; margin: 12px 0 14px; }
.ai-grid p { color: var(--muted); font-size: 1.05rem; margin: 0 0 14px; }
.ai-note { font-size: 0.85rem; color: var(--faint); }
.insight {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
}
.insight-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.insight-tk { font-weight: 700; font-size: 1.05rem; }
.insight-tag { font-size: 0.72rem; color: var(--faint); }
.insight-line { color: var(--text); font-size: 0.96rem; margin: 0 0 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-size: 0.78rem; padding: 4px 11px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--muted); }
.chip.good { color: var(--pos); border-color: rgba(34, 197, 94, 0.4); }
.chip.val { color: var(--accent); border-color: rgba(20, 184, 166, 0.4); }

/* ---------- Beta ---------- */
.beta-card {
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  background:
    radial-gradient(circle at 20% -10%, rgba(20, 184, 166, 0.12), transparent 55%),
    var(--surface-2);
  padding: 48px;
  text-align: center;
}
.beta-card h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 700; }
.beta-card p.sub { color: var(--muted); font-size: 1.06rem; max-width: 52ch; margin: 14px auto 26px; }
.beta-form { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.beta-form input {
  flex: 1 1 300px; max-width: 360px;
  padding: 13px 16px;
  border-radius: 11px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--text);
  font-size: 0.98rem;
  font-family: inherit;
}
.beta-form input::placeholder { color: var(--faint); }
.beta-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.beta-micro { margin-top: 14px; font-size: 0.82rem; color: var(--faint); }
.beta-success { display: none; font-size: 1.05rem; color: var(--pos); font-weight: 600; margin-top: 8px; }
.beta-card.done .beta-form, .beta-card.done .beta-micro { display: none; }
.beta-card.done .beta-success { display: block; }
.beta-error { color: var(--neg); font-size: 0.9rem; margin-top: 12px; }
.beta-error:empty { display: none; }
/* honeypot — poza ekranem, niedostępny dla klawiatury/AT; wypełnią go tylko boty */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 40px 0 48px; }
.foot-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-brand { max-width: 320px; }
.foot-brand p { color: var(--muted); font-size: 0.9rem; margin: 10px 0 0; }
.foot-links { display: flex; flex-direction: column; gap: 8px; }
.foot-links a { color: var(--muted); font-size: 0.92rem; }
.foot-links a:hover { color: var(--text); }
.legal { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--faint); font-size: 0.8rem; line-height: 1.55; }
.legal .copy { margin-top: 10px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero .lead { max-width: none; }
  .ai-grid { grid-template-columns: 1fr; gap: 28px; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .beta-card { padding: 32px 22px; }
  .hero { padding-top: 52px; }
  section { padding: 48px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}