/* MediaLab — wspólny styl portalu. Własny kod; licencja Apache-2.0 (plik LICENSE). */
:root {
  color-scheme: light dark;
  --bg: #f5f5f8;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --surface-2: #f0f0f6;
  --text: #1b1b22;
  --muted: #565664;
  --border: rgba(20, 20, 40, 0.14);
  --border-strong: rgba(20, 20, 40, 0.28);
  --accent: #3b3fd6;          /* tło przycisków głównych */
  --accent-hover: #2f33c0;
  --accent-text: #3338c9;     /* tekst-link na jasnym tle */
  --on-accent: #ffffff;
  --accent-soft: #ebebff;
  --teal: #0d7d70;
  --ok: #17692f;
  --ok-bg: #e6f5ea;
  --warn: #8a4b00;
  --warn-bg: #fff3df;
  --danger: #b0211a;
  --danger-bg: #fdecea;
  --focus: #1a73e8;
  --shadow: 0 1px 2px rgba(20, 20, 40, 0.06), 0 8px 24px rgba(20, 20, 40, 0.07);
  --radius: 16px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #0e0e13; --bg-elev: #17171f; --surface: #1b1b24; --surface-2: #23232e; --text: #f1f1f6; --muted: #aaaabb; --border: rgba(255,255,255,0.15); --border-strong: rgba(255,255,255,0.3); --accent: #5457e8; --accent-hover: #4447d4; --accent-text: #a9abff; --on-accent: #ffffff; --accent-soft: #26264d; --teal: #5fdccb; --ok: #7fdc9a; --ok-bg: #12281a; --warn: #ffc27a; --warn-bg: #2d2010; --danger: #ff9b94; --danger-bg: #301513; --focus: #8ab4ff; --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.35); }
}
:root[data-theme="dark"] { --bg: #0e0e13; --bg-elev: #17171f; --surface: #1b1b24; --surface-2: #23232e; --text: #f1f1f6; --muted: #aaaabb; --border: rgba(255,255,255,0.15); --border-strong: rgba(255,255,255,0.3); --accent: #5457e8; --accent-hover: #4447d4; --accent-text: #a9abff; --on-accent: #ffffff; --accent-soft: #26264d; --teal: #5fdccb; --ok: #7fdc9a; --ok-bg: #12281a; --warn: #ffc27a; --warn-bg: #2d2010; --danger: #ff9b94; --danger-bg: #301513; --focus: #8ab4ff; --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.35); color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.55 var(--font); -webkit-font-smoothing: antialiased;
  min-height: 100vh; display: flex; flex-direction: column;
}
main { flex: 1 0 auto; width: 100%; }
img, svg { max-width: 100%; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); font-weight: 750; }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.75rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 650; }
p { margin: 0 0 1em; }
a { color: var(--accent-text); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
code, kbd { font-family: var(--font-mono); font-size: 0.92em; background: var(--surface-2); border-radius: 6px; padding: 0.1em 0.4em; overflow-wrap: anywhere; }
ul, ol { padding-left: 1.3em; margin: 0 0 1em; }
li { margin-bottom: 0.3em; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--accent); color: var(--on-accent); padding: 10px 16px; border-radius: 10px; text-decoration: none; font-weight: 600; }
.skip-link:focus { top: 12px; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.wrap-narrow { max-width: 820px; }
.section { padding: 48px 0; }
.section-tight { padding: 28px 0; }
.lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 46em; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.center { text-align: center; }

/* ── nagłówek ── */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg-elev) 82%, transparent); -webkit-backdrop-filter: saturate(180%) blur(18px); backdrop-filter: saturate(180%) blur(18px); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; gap: 12px 20px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 750; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 8px; display: block; }
.brand small { font-weight: 500; color: var(--muted); font-size: 0.8rem; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; align-items: center; }
.nav a { color: var(--text); text-decoration: none; padding: 7px 12px; border-radius: 999px; font-size: 0.95rem; font-weight: 550; }
.nav a:hover { background: var(--surface-2); }
.nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent-text); }
.theme-btn { appearance: none; border: 1px solid var(--border-strong); background: transparent; color: var(--text); border-radius: 999px; padding: 6px 12px; font: inherit; font-size: 0.88rem; cursor: pointer; display: inline-flex; gap: 6px; align-items: center; min-height: 36px; }
.theme-btn:hover { background: var(--surface-2); }
.theme-btn svg { width: 16px; height: 16px; flex: none; }
@media (max-width: 640px) {
  .nav { margin-left: 0; width: 100%; order: 3; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
  .nav a { white-space: nowrap; }
  .theme-btn { margin-left: auto; }
}

/* ── przyciski ── */
.btn { appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 10px 22px; border-radius: 12px; border: 1px solid transparent; font: inherit; font-weight: 650; font-size: 1rem; cursor: pointer; text-decoration: none; transition: background 0.15s, transform 0.05s; text-align: center; }
.btn:active { transform: scale(0.985); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface-2); }
.btn-danger { background: var(--surface); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-bg); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-lg { min-height: 52px; padding: 12px 28px; font-size: 1.05rem; }

/* ── karty i siatka ── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card + .card { margin-top: 20px; }
.grid > .card + .card, .grid > .card { margin-top: 0; }
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.feature h3 { margin-bottom: 0.3em; }
.feature p { margin: 0; color: var(--muted); }
.badge { display: inline-block; font-size: 0.78rem; font-weight: 650; padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-text); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-ok { background: var(--ok-bg); color: var(--ok); }

/* ── hero ── */
.hero { padding: 56px 0 36px; text-align: center; }
.hero-logo { width: 112px; height: 112px; margin: 0 auto 18px; display: block; filter: drop-shadow(0 12px 24px rgba(59, 63, 214, 0.35)); }
.hero .lead { margin-left: auto; margin-right: auto; }
.hero .btn-row { justify-content: center; margin-top: 24px; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 22px 0 0; padding: 0; list-style: none; }
.pills li { margin: 0; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; font-size: 0.92rem; font-weight: 550; }

/* ── tabele ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 560px; }
caption { text-align: left; padding: 16px 18px 6px; font-weight: 650; }
th, td { text-align: left; padding: 12px 18px; border-top: 1px solid var(--border); vertical-align: top; }
thead th { border-top: 0; background: var(--surface-2); font-size: 0.92rem; }
tbody th { font-weight: 600; width: 28%; }

/* ── FAQ ── */
details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; }
details[open] { padding-bottom: 14px; }
summary { cursor: pointer; padding: 14px 0; font-weight: 650; list-style-position: outside; }
summary::marker { color: var(--accent-text); }

/* ── alerty ── */
.alert { border-radius: 12px; padding: 14px 16px; border: 1px solid var(--border); background: var(--surface-2); }
.alert-info { background: var(--accent-soft); border-color: transparent; }
.alert-warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.alert-ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.alert-danger { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.alert strong { display: block; }
.alert p:last-child { margin-bottom: 0; }
.alert-warn a, .alert-danger a, .alert-ok a { color: inherit; }

/* ── stopka ── */
.site-footer { margin-top: 40px; border-top: 1px solid var(--border); background: var(--bg-elev); padding: 28px 0; font-size: 0.92rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; justify-content: space-between; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer li { margin: 0; }
.site-footer p { margin: 0 0 4px; }

/* ── zrzuty ── */
.shots { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin: 0; padding: 0; list-style: none; }
.shots li { margin: 0; }
.shots figure { margin: 0; }
.shots img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); display: block; }
.shots-wide { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.shots figcaption { font-size: 0.88rem; color: var(--muted); padding-top: 6px; }

.steps { counter-reset: s; list-style: none; padding: 0; }
.steps li { counter-increment: s; position: relative; padding: 4px 0 14px 46px; margin: 0; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 2px; width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-weight: 700; font-size: 0.95rem; }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 0; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; overflow-wrap: anywhere; }
dl.facts dt { overflow-wrap: anywhere; }
@media (max-width: 560px) { dl.facts { grid-template-columns: 1fr; gap: 0; } dl.facts dt { margin-top: 10px; font-size: 0.88rem; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
@media print { .site-header, .site-footer, .theme-btn { display: none; } body { background: #fff; color: #000; } }