/* ==========================================================================
   zyglarski.pl — design system
   Zero external dependencies: system fonts, no trackers, no CDNs.
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, "URW Palladio L", Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;

  --bg: #f6f4ee;
  --bg-elev: #fffdf8;
  --bg-sunk: #ece9e1;
  --ink: #141820;
  --ink-2: #3b4250;
  --ink-3: #6b7280;
  --line: rgba(20, 24, 32, 0.12);
  --line-strong: rgba(20, 24, 32, 0.24);
  --accent: #0f766e;
  --accent-ink: #0b5e58;
  --accent-soft: rgba(15, 118, 110, 0.10);
  --accent-2: #b45309;
  --accent-2-soft: rgba(180, 83, 9, 0.10);
  --shadow: 0 1px 2px rgba(20,24,32,.05), 0 12px 32px -16px rgba(20,24,32,.25);
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(.2,.7,.2,1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1116;
    --bg-elev: #151a21;
    --bg-sunk: #0a0d11;
    --ink: #eef0f3;
    --ink-2: #c3c9d3;
    --ink-3: #8b94a3;
    --line: rgba(238, 240, 243, 0.10);
    --line-strong: rgba(238, 240, 243, 0.22);
    --accent: #2dd4bf;
    --accent-ink: #5eead4;
    --accent-soft: rgba(45, 212, 191, 0.12);
    --accent-2: #f59e0b;
    --accent-2-soft: rgba(245, 158, 11, 0.12);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 16px 40px -20px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1116;
  --bg-elev: #151a21;
  --bg-sunk: #0a0d11;
  --ink: #eef0f3;
  --ink-2: #c3c9d3;
  --ink-3: #8b94a3;
  --line: rgba(238, 240, 243, 0.10);
  --line-strong: rgba(238, 240, 243, 0.22);
  --accent: #2dd4bf;
  --accent-ink: #5eead4;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --accent-2: #f59e0b;
  --accent-2-soft: rgba(245, 158, 11, 0.12);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 16px 40px -20px rgba(0,0,0,.7);
  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  overflow-x: clip;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "calt";
}

body::before {
  /* subtle paper grain */
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(rgba(20,24,32,.035) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: .5;
}
:root[data-theme="dark"] body::before { background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) body::before { background-image: radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px); } }

a { color: var(--accent-ink); text-decoration: none; text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.015em; line-height: 1.15; color: var(--ink); }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--accent); color: #fff; }

.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; position: relative; z-index: 1; }
.narrow { max-width: 760px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.skip-link { position: absolute; left: 12px; top: -48px; background: var(--ink); color: var(--bg); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip-link:focus { top: 12px; }

/* Typography scale */
.display { font-family: var(--font-serif); font-weight: 400; font-size: clamp(2.6rem, 6.2vw, 4.6rem); letter-spacing: -0.02em; line-height: 1.02; }
.display em { font-style: italic; color: var(--accent-ink); }
.h2 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.9rem, 3.6vw, 2.7rem); letter-spacing: -0.015em; }
.h3 { font-size: 1.25rem; font-weight: 600; }
.lede { font-size: clamp(1.125rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 44ch; }
.eyebrow { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-ink); margin-bottom: 14px; display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
.muted { color: var(--ink-3); }
.prose { max-width: 68ch; color: var(--ink-2); }
.prose p { margin-bottom: 1.15em; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose h3 { color: var(--ink); margin: 2em 0 .6em; font-size: 1.2rem; }
.prose ul { list-style: disc; padding-left: 1.25em; margin-bottom: 1.15em; }
.prose li { margin-bottom: .4em; }
.prose blockquote { margin: 1.6em 0; padding: .2em 0 .2em 1.2em; border-left: 2px solid var(--accent); font-family: var(--font-serif); font-size: 1.3rem; line-height: 1.4; color: var(--ink); }

/* --------------------------------------------------------------------------
   Header / nav
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 600; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font-family: var(--font-serif); font-size: 15px; letter-spacing: 0; }
.brand small { display: block; font-weight: 400; color: var(--ink-3); font-size: .78rem; margin-top: -2px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { color: var(--ink-2); padding: 8px 12px; border-radius: 999px; font-size: .95rem; font-weight: 500; transition: background .2s var(--ease), color .2s var(--ease); }
.nav-links a:hover { text-decoration: none; background: var(--accent-soft); color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--ink); background: var(--bg-sunk); }
.nav-cta { margin-left: 8px; }
.nav-links a.nav-cta { color: var(--bg); background: var(--ink); }
.nav-links a.nav-cta:hover { background: var(--accent); color: #fff; }
.icon-btn { appearance: none; border: 1px solid var(--line); background: transparent; color: var(--ink-2); width: 38px; height: 38px; border-radius: 999px; display: inline-grid; place-items: center; cursor: pointer; transition: border-color .2s, color .2s; }
.icon-btn:hover { border-color: var(--line-strong); color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; }
.menu-toggle { display: none; }

@media (max-width: 820px) {
  .menu-toggle { display: inline-grid; }
  .nav-links {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px var(--gutter) 18px;
    background: var(--bg-elev); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 12px 14px; font-size: 1.05rem; }
  .nav-cta { margin-left: 0; margin-top: 6px; }
  .brand small { display: none; }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; line-height: 1;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-sm { padding: 9px 14px; font-size: .88rem; }

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 18px; margin-bottom: clamp(32px, 5vw, 56px); }
@media (min-width: 900px) {
  .section-head { grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: end; }
  .section-head .lede { margin: 0; justify-self: end; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero { padding: clamp(56px, 8vw, 110px) 0 clamp(48px, 6vw, 88px); position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: auto -20% -40% -20%; height: 60%;
  background: radial-gradient(60% 60% at 50% 100%, var(--accent-soft), transparent 70%);
  pointer-events: none; z-index: 0;
}
.hero-grid { display: grid; grid-template-columns: minmax(0,1fr); gap: 40px; align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: minmax(0,1.25fr) minmax(0,.85fr); gap: 64px; } }
.hero .display { margin: 8px 0 22px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 30px; color: var(--ink-3); font-size: .92rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta svg { width: 15px; height: 15px; }

.portrait { position: relative; justify-self: center; width: 100%; max-width: 420px; min-width: 0; aspect-ratio: 1; }
.portrait img { width: 100%; height: 100%; object-fit: cover; border-radius: 28px; filter: saturate(.95) contrast(1.02); box-shadow: var(--shadow); position: relative; z-index: 1; }
.portrait::before {
  content: ""; position: absolute; inset: -14px; border-radius: 36px;
  border: 1px solid var(--line-strong); z-index: 0;
  mask: linear-gradient(135deg, #000 30%, transparent 75%);
  -webkit-mask: linear-gradient(135deg, #000 30%, transparent 75%);
}
.portrait::after {
  content: ""; position: absolute; right: -8%; bottom: -8%; width: 56%; height: 56%; z-index: 0;
  background: repeating-linear-gradient(45deg, var(--line-strong) 0 1px, transparent 1px 9px);
  border-radius: 24px; opacity: .55;
}
.portrait-caption {
  position: absolute; left: 18px; bottom: 18px; z-index: 2;
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px;
  font-size: .82rem; color: var(--ink-2); line-height: 1.35;
}
.portrait-caption strong { display: block; color: var(--ink); font-weight: 600; }

/* --------------------------------------------------------------------------
   Stats
   -------------------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 760px) { .stats { grid-template-columns: repeat(4, minmax(0,1fr)); } }
.stat { background: var(--bg-elev); padding: 26px 24px; }
.stat b { display: block; font-family: var(--font-serif); font-weight: 400; font-size: clamp(2rem, 3.4vw, 2.6rem); letter-spacing: -0.02em; line-height: 1; margin-bottom: 8px; }
.stat span { color: var(--ink-3); font-size: .92rem; }

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: minmax(0,1fr); }
.grid-3 { grid-template-columns: minmax(0,1fr); }
@media (min-width: 700px) { .grid-2, .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); } }

.card {
  position: relative; display: flex; flex-direction: column; gap: 12px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: var(--shadow); }
.card h3 { font-size: 1.15rem; }
.card p { color: var(--ink-2); margin: 0; font-size: .97rem; }
.card .card-link { margin-top: auto; padding-top: 6px; font-weight: 600; font-size: .92rem; display: inline-flex; align-items: center; gap: 6px; }
.card .card-link svg { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.card:hover .card-link svg { transform: translate(2px, -2px); }
.card-link::after { content: ""; position: absolute; inset: 0; }
.card-icon { width: 42px; height: 42px; border-radius: 11px; background: var(--accent-soft); color: var(--accent-ink); display: grid; place-items: center; }
.card-icon svg { width: 20px; height: 20px; }
.card-icon.warm { background: var(--accent-2-soft); color: var(--accent-2); }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .04em; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-3); }

/* Feature (big product cards) */
.feature {
  display: grid; gap: 28px; padding: clamp(26px, 4vw, 44px);
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: 20px;
  position: relative; overflow: hidden;
}
.feature::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--accent); }
.feature.warm::before { background: var(--accent-2); }
@media (min-width: 900px) { .feature { grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: start; } }
.feature h3 { font-family: var(--font-serif); font-weight: 400; font-size: clamp(1.7rem, 2.8vw, 2.2rem); letter-spacing: -0.015em; }
.feature .kicker { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }
.feature p { color: var(--ink-2); }
.feature ul.checks { display: grid; gap: 10px; margin: 6px 0 18px; }
.feature ul.checks li { padding-left: 28px; position: relative; color: var(--ink-2); }
.feature ul.checks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 16px; border-radius: 999px; background: var(--accent-soft); }
.feature ul.checks li::after { content: ""; position: absolute; left: 5px; top: calc(.45em + 4px); width: 6px; height: 4px; border-left: 2px solid var(--accent-ink); border-bottom: 2px solid var(--accent-ink); transform: rotate(-45deg); }
.feature.warm ul.checks li::before { background: var(--accent-2-soft); }
.feature.warm ul.checks li::after { border-color: var(--accent-2); }
.feature + .feature { margin-top: 20px; }
.feature .actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* --------------------------------------------------------------------------
   Timeline
   -------------------------------------------------------------------------- */
.timeline { position: relative; display: grid; gap: 0; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong); }
.tl-item { position: relative; padding: 0 0 34px 36px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: 0; top: 7px; width: 15px; height: 15px; border-radius: 999px; background: var(--bg); border: 2px solid var(--ink); }
.tl-item.now::before { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.tl-date { font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 4px; }
.tl-item h3 { font-size: 1.1rem; }
.tl-item .org { color: var(--accent-ink); font-weight: 500; }
.tl-item p { color: var(--ink-2); margin: 6px 0 0; font-size: .96rem; max-width: 62ch; }
@media (min-width: 900px) {
  .timeline-2col { grid-template-columns: minmax(0,1fr) minmax(0,1fr); column-gap: 48px; }
  .timeline-2col::before { display: none; }
  .timeline-2col .tl-col { position: relative; }
  .timeline-2col .tl-col::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; background: var(--line-strong); }
  .timeline-2col .tl-col > .h3 { padding-left: 36px; margin-bottom: 22px; }
}

/* --------------------------------------------------------------------------
   Pillars / list rows
   -------------------------------------------------------------------------- */
.pillars { display: grid; gap: 0; border-top: 1px solid var(--line); }
.pillar { display: grid; gap: 10px; padding: 28px 0; border-bottom: 1px solid var(--line); }
@media (min-width: 820px) { .pillar { grid-template-columns: 70px minmax(0,1fr) minmax(0,1.6fr); gap: 28px; align-items: start; } }
.pillar .num { font-family: var(--font-mono); color: var(--ink-3); font-size: .85rem; padding-top: 6px; }
.pillar h3 { font-size: 1.25rem; }
.pillar p { color: var(--ink-2); margin: 0; }

/* Link list */
.link-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.link-list a { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
.link-list a:hover { text-decoration: none; }
.link-list a:hover .ll-title { color: var(--accent-ink); }
.link-list .ll-title { font-weight: 600; display: block; }
.link-list .ll-sub { color: var(--ink-3); font-size: .92rem; display: block; margin-top: 2px; }
.link-list svg { width: 18px; height: 18px; color: var(--ink-3); transition: transform .2s var(--ease), color .2s; }
.link-list a:hover svg { transform: translate(2px,-2px); color: var(--accent-ink); }

/* Quote band */
.band { background: var(--ink); color: var(--bg); padding: clamp(56px, 8vw, 96px) 0; position: relative; overflow: hidden; }
.band .wrap { position: relative; z-index: 1; }
.band blockquote { margin: 0; font-family: var(--font-serif); font-size: clamp(1.5rem, 3.2vw, 2.4rem); line-height: 1.25; letter-spacing: -0.015em; max-width: 26ch; }
.band cite { display: block; margin-top: 24px; font-style: normal; font-family: var(--font-mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; opacity: .7; }
.band::after { content: ""; position: absolute; right: -10%; top: -40%; width: 60%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(45,212,191,.25), transparent 65%); pointer-events: none; }
:root[data-theme="dark"] .band { background: var(--bg-elev); color: var(--ink); border-block: 1px solid var(--line); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .band { background: var(--bg-elev); color: var(--ink); border-block: 1px solid var(--line); } }

/* Page hero (sub pages) */
.page-hero { padding: clamp(48px, 7vw, 96px) 0 clamp(36px, 5vw, 64px); border-bottom: 1px solid var(--line); }
.page-hero .display { font-size: clamp(2.3rem, 5.2vw, 3.8rem); margin: 6px 0 18px; }

/* Two-column text */
.split { display: grid; grid-template-columns: minmax(0,1fr); gap: 32px; }
@media (min-width: 900px) { .split { grid-template-columns: minmax(0,.9fr) minmax(0,1.4fr); gap: 64px; } .split .sticky { position: sticky; top: 92px; align-self: start; } }

/* Contact / CTA */
.cta { text-align: center; padding: clamp(64px, 9vw, 120px) 0; }
.cta .h2 { margin-bottom: 14px; }
.cta .lede { margin-inline: auto; }
.cta .hero-actions { justify-content: center; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 44px; color: var(--ink-3); font-size: .9rem; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 18px 32px; justify-content: space-between; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer-links a { color: var(--ink-2); }
.footer-note { margin-top: 18px; font-size: .82rem; }

/* --------------------------------------------------------------------------
   Reveal animation
   -------------------------------------------------------------------------- */
html.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
html.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } .card, .btn { transition: none; } }

/* Print */
@media print {
  .site-header, .site-footer, .hero-actions, .menu-toggle, .icon-btn, .cta { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; }
}