/* ==========================================================================
   Adam Żelazko — style.css
   Paleta: Wariant 5 (niebieski + punktowy fiolet)
   ========================================================================== */

:root {
  /* -- kolory: tryb jasny -- */
  --c-navy: #102A43;
  --c-blue-mid: #1E5A96;
  --c-blue: #4E8FD6;
  --c-purple: #8B6FE8;
  --c-tint: #EAF1FA;
  --c-bg: #FBFCFE;
  --c-surface: #FFFFFF;
  --c-border: #DCE6F2;
  --c-text: var(--c-navy);
  --c-text-secondary: var(--c-blue-mid);
  --c-text-muted: #5C7492;

  /* tło przycisków - osobna zmienna, bo potrzebuje wystarczająco
     ciemnego koloru pod biały tekst niezależnie od motywu */
  --c-btn-bg: #1E5A96;
  --c-btn-bg-hover: #102A43;

  /* -- typografia -- */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* -- layout -- */
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1080px;
  --header-h: 64px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-bg: #0A121C;
    --c-surface: #16273A;
    --c-tint: #1E3A56;
    --c-border: #2E4F70;
    --c-text: #F3F6FA;
    --c-text-secondary: #C2D4E8;
    --c-text-muted: #90A8C4;
    --c-blue: #6EB0F5;
    --c-blue-mid: #8FC4F5;
    --c-purple: #C0AEF7;
    --c-btn-bg: #2E6FB0;
    --c-btn-bg-hover: #4A8CCB;
  }
}

html[data-theme="dark"] {
  --c-bg: #0A121C;
  --c-surface: #16273A;
  --c-tint: #1E3A56;
  --c-border: #2E4F70;
  --c-text: #F3F6FA;
  --c-text-secondary: #C2D4E8;
  --c-text-muted: #90A8C4;
  --c-blue: #6EB0F5;
  --c-blue-mid: #8FC4F5;
  --c-purple: #C0AEF7;
  --c-btn-bg: #2E6FB0;
  --c-btn-bg-hover: #4A8CCB;
}

/* ---------- reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--c-text);
  margin: 0 0 0.5em;
  line-height: 1.2;
}

h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1.2em; }
h3 { font-size: 1.05rem; }

p { color: var(--c-text-secondary); margin: 0 0 1em; }

a { color: var(--c-blue-mid); text-decoration: none; }
a:hover { text-decoration: underline; }

img, svg { display: block; max-width: 100%; }

button { font-family: inherit; cursor: pointer; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.wrap-narrow { max-width: 720px; }

.section { padding: 72px 0; }
.section-tint { background: var(--c-tint); }

/* ---------- accessibility helpers ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--c-navy);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 200;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

:focus-visible {
  outline: 2.5px solid var(--c-purple);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--c-text);
  white-space: nowrap;
}
.main-nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-left: auto;
}
.main-nav a {
  font-size: 0.9rem;
  color: var(--c-text-secondary);
  font-weight: 500;
}
.main-nav a:hover { color: var(--c-blue-mid); text-decoration: none; }

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}
.icon-btn {
  background: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-secondary);
}
.icon-btn:hover { border-color: var(--c-blue); color: var(--c-blue-mid); }
.icon { width: 18px; height: 18px; }

.icon-moon { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .icon-sun { display: none; }
  html:not([data-theme="light"]) .icon-moon { display: block; }
}

.lang-toggle {
  background: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  height: 36px;
  padding: 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-text-secondary);
}
.lang-toggle .lang-sep { color: var(--c-border); margin: 0 2px; }
html[data-lang="pl"] .lang-toggle .lang-pl,
html[data-lang="en"] .lang-toggle .lang-en {
  color: var(--c-blue-mid);
}

.nav-toggle { display: none; }

/* ---------- hero ---------- */
.hero { padding-top: 56px; }
.hero-inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: flex-start;
}
.hero-photo {
  width: 320px;
  aspect-ratio: 4 / 5; /* 320 x 400px */
  border-radius: var(--radius); /* to samo zaokrąglenie co karty (.card, .quote itd.) */
  background: var(--c-tint);
  overflow: hidden;
  flex-shrink: 0;
}
.hero-photo picture {
  display: block;
  width: 100%;
  height: 100%;
}
.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-photo-fallback {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  color: var(--c-blue);
  padding: 40px;
}
.hero-lead {
  font-size: 1.15rem;
  color: var(--c-text-secondary);
  font-weight: 500;
}

/* EFEKT ZAKREŚLACZA DLA LINKU W BIO (OPCJA B) */
[data-i18n="hero_bio2"] a {
  color: var(--c-text);
  text-decoration: none;
  font-weight: 600;
  background: linear-gradient(120deg, color-mix(in srgb, var(--c-purple) 35%, transparent) 0%, color-mix(in srgb, var(--c-purple) 35%, transparent) 100%);
  background-repeat: no-repeat;
  background-size: 100% 35%;
  background-position: 0 88%;
  transition: background-size 0.25s ease, color 0.25s ease;
}

[data-i18n="hero_bio2"] a:hover {
  text-decoration: none;
  background-size: 100% 100%;
  color: var(--c-navy);
}

/* ---------- cards grid (obszary) ---------- */
.grid { display: grid; gap: 20px; }
.grid-areas { grid-template-columns: repeat(3, 1fr); }
.grid-audience { grid-template-columns: repeat(4, 1fr); }
.grid-testimonials { grid-template-columns: repeat(3, 1fr); }

.card, .audience-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px;
}
.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--c-tint);
  color: var(--c-blue-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.card-icon svg { width: 20px; height: 20px; }
.card h3, .audience-card h3 { margin-bottom: 0.4em; }
.card p, .audience-card p { font-size: 0.92rem; margin-bottom: 0.8em; }

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--c-blue-mid);
  background: var(--c-tint);
  padding: 4px 10px;
  border-radius: 999px;
}

.audience-card { text-align: left; }

/* ---------- facts carousel ---------- */
.facts-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }

.facts-viewport {
  overflow: hidden;
}
.facts-track {
  display: flex;
  gap: 20px;
  transition: transform 0.5s ease;
}
.fact-slide {
  flex: 0 0 calc(50% - 10px);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 96px;
}
.fact-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-purple);
  flex-shrink: 0;
  min-width: 90px;
}
.fact-text { color: var(--c-text-secondary); font-size: 0.98rem; margin: 0; }

.facts-dots {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 14px;
}
.facts-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--c-border);
  padding: 0;
}
.facts-dots button[aria-current="true"] { background: var(--c-blue-mid); }

/* ---------- wide photo section ---------- */
.section-photo { padding: 0; }
.wide-photo {
  height: 400px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-tint);
  margin: 56px 0;
}
.wide-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.wide-photo-fallback {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  color: var(--c-blue);
}
.wide-photo-fallback svg { width: 64px; height: 64px; }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--c-border);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--c-text);
}
.faq-question .chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--c-blue-mid);
  transition: transform 0.2s ease;
}
.faq-question[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer p { padding-bottom: 18px; margin: 0; font-size: 0.94rem; }

/* ---------- testimonials ---------- */
.quote {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-purple);
  border-radius: var(--radius);
  padding: 20px;
  margin: 0;
}
.quote p { color: var(--c-text); font-size: 0.95rem; font-style: italic; }
.quote footer { color: var(--c-text-muted); font-size: 0.82rem; font-style: normal; }
.quote-placeholder { opacity: 0.7; }

.testimonials-viewport { overflow: hidden; }
.testimonials-track {
  display: flex;
  gap: 20px;
  transition: transform 0.5s ease;
}
.testimonials-track .quote {
  flex: 0 0 calc(33.333% - 14px);
}
.testimonials-dots {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 14px;
}
.testimonials-dots:empty { display: none; }
.testimonials-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--c-border);
  padding: 0;
}
.testimonials-dots button[aria-current="true"] { background: var(--c-blue-mid); }

/* ---------- contact form ---------- */
.contact-lead { font-size: 1.02rem; }
.contact-form { margin-top: 8px; }
.form-row { margin-bottom: 18px; display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 0.86rem; font-weight: 600; color: var(--c-text); }
.form-row input,
.form-row select,
.form-row textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text);
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--c-blue);
}

.btn-primary {
  background: var(--c-btn-bg);
  color: #fff;
  border: none;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
}
.btn-primary:hover { background: var(--c-btn-bg-hover); }

.form-note { font-size: 0.82rem; color: var(--c-text-muted); margin-top: 10px; }
.form-success {
  margin-top: 14px;
  color: var(--c-blue-mid);
  font-weight: 600;
  font-size: 0.92rem;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--c-border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--c-text-muted);
}

/* ==========================================================================
   Responsywność
   ========================================================================== */
@media (max-width: 900px) {
  .grid-areas { grid-template-columns: repeat(2, 1fr); }
  .grid-testimonials { grid-template-columns: 1fr; }
  .testimonials-track .quote { flex: 0 0 calc(50% - 10px); }
  .wide-photo { height: 320px; }
}

@media (max-width: 780px) {
  .main-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    padding: 8px 24px 16px;
    gap: 14px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }

  .hero-inner { grid-template-columns: 1fr; text-align: left; }
  .hero-photo {
    width: 100%;
    aspect-ratio: 4 / 3; /* szersze kadrowanie na telefonie */
    margin: 0 auto;
  }

  .grid-areas, .grid-audience { grid-template-columns: 1fr; }

  .section { padding: 52px 0; }

  .fact-slide { flex: 0 0 100%; padding: 22px; }
  .fact-number { font-size: 1.7rem; min-width: auto; }

  .testimonials-track .quote { flex: 0 0 100%; }

  .wide-photo { height: 240px; margin: 40px 0; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 18px; }
  .brand { font-size: 0.95rem; }
}