/* =========================================================
   GDAŃSK HISTORIA — Design tokens: sand/ivory ground, deep
   Baltic navy ink, honey amber + muted brick accents.
   ========================================================= */

:root{
  --color-bg:        #F6F3EC;
  --color-bg-alt:    #EFE8D8;
  --color-surface:   #FFFFFF;
  --color-ink:       #16283D;
  --color-ink-soft:  #46596C;
  --color-amber:     #C68A2E;
  --color-amber-ink: #8C5E1D;
  --color-amber-soft:#EFD9AC;
  --color-brick:     #8C3B2E;
  --color-sea:       #4C6B58;
  --color-line:      #DCD3BE;

  --font-display: "Fraunces", "Iowan Old Style", serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --step-0: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.15rem + 0.4vw, 1.5rem);
  --step-2: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
  --step-3: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  --step-4: clamp(3rem, 2.2rem + 3.5vw, 5rem);

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;

  --radius-sm: 6px;
  --radius-md: 14px;
  --container: 1180px;
  --border: 1px solid var(--color-line);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0; font-family: var(--font-body); font-size: var(--step-0); line-height: 1.65;
  color: var(--color-ink); background: var(--color-bg); font-display: swap;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3,h4{ font-family: var(--font-display); font-weight: 600; line-height: 1.12; margin: 0 0 var(--space-sm); color: var(--color-ink); }
h1{ font-size: var(--step-4); }
h2{ font-size: var(--step-3); }
h3{ font-size: var(--step-2); }
p{ margin: 0 0 var(--space-sm); }
em{ font-style: italic; color: var(--color-amber-ink); }

.container{ max-width: var(--container); margin-inline:auto; padding-inline: var(--space-sm); }
.section{ padding-block: var(--space-xl); }
.section--alt{ background: var(--color-bg-alt); }
.section-eyebrow{
  display:inline-flex; align-items:center; gap:.5rem; font-family: var(--font-mono); font-size: .78rem;
  letter-spacing:.14em; text-transform:uppercase; color: var(--color-amber-ink); margin-bottom: var(--space-xs);
}
.section-eyebrow::before{ content:""; width:22px; height:1px; background: var(--color-amber); display:inline-block; }
.section-head{ max-width: 700px; margin-bottom: var(--space-lg); }
.section-head p{ color: var(--color-ink-soft); font-size: var(--step-1); }

.visually-hidden{ position:absolute !important; 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:-999px; top:0; background:var(--color-ink); color:#fff; padding:.75rem 1.25rem; z-index:999; border-radius:0 0 8px 0; }
.skip-link:focus{ left:0; }
:focus-visible{ outline: 3px solid var(--color-amber); outline-offset: 2px; }

/* =========== NAVBAR =========== */
.site-header{ position: sticky; top:0; z-index: 100; background: rgba(246,243,236,.86); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: border-color .3s ease, box-shadow .3s ease; }
.site-header.is-scrolled{ border-color: var(--color-line); box-shadow: 0 6px 24px rgba(22,40,61,.06); }
.nav-wrap{ display:flex; align-items:center; justify-content:space-between; padding-block: .9rem; }
.brand{ display:flex; align-items:center; gap:.6rem; font-family: var(--font-display); font-size:1.25rem; font-weight:600; }
.brand-mark{ width:34px; height:34px; flex-shrink:0; }
.brand span em{ color:var(--color-amber-ink); font-style: normal; }
.nav-links{ display:flex; align-items:center; gap: 2rem; list-style:none; margin:0; padding:0; }
.nav-links a{ font-size: .95rem; font-weight:500; color: var(--color-ink-soft); position:relative; padding: .25rem 0; }
.nav-links a::after{ content:""; position:absolute; left:0; bottom:-2px; height:2px; width:0; background:var(--color-amber); transition: width .25s ease; }
.nav-links a:hover::after, .nav-links a:focus-visible::after{ width:100%; }
.nav-links a:hover{ color: var(--color-ink); }

.btn{ display:inline-flex; align-items:center; gap:.5rem; font-weight:600; font-size:.92rem; padding: .8rem 1.5rem; border-radius: 999px; border: 1px solid transparent; cursor:pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn-primary{ background: var(--color-ink); color:#fff; }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px rgba(22,40,61,.25); }
.btn-outline{ border-color: var(--color-ink); color: var(--color-ink); }
.btn-outline:hover{ background: var(--color-ink); color:#fff; }
.btn-amber{ background: var(--color-amber); color:#2b1c05; }
.btn-amber:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px rgba(198,138,46,.35); }

.nav-toggle{ display:none; background:none; border:0; padding:.4rem; }
.nav-toggle span{ display:block; width:24px; height:2px; background:var(--color-ink); margin:5px 0; transition:.25s; }

/* =========== HERO =========== */
.hero{ position:relative; overflow:hidden; padding-block: var(--space-xl) var(--space-lg); display:grid; grid-template-columns: 1.1fr .9fr; gap: var(--space-lg); align-items:center; }
.hero-copy .section-eyebrow{ margin-bottom: var(--space-sm); }
.hero h1{ margin-bottom: var(--space-sm); }
.hero-lede{ font-size: var(--step-1); color: var(--color-ink-soft); max-width: 46ch; margin-bottom: var(--space-md); }
.hero-cta{ display:flex; gap:1rem; flex-wrap:wrap; margin-bottom: var(--space-md); }
.hero-stats{ display:flex; gap: var(--space-md); flex-wrap:wrap; }
.hero-stat b{ display:block; font-family:var(--font-display); font-size:1.6rem; color:var(--color-ink); }
.hero-stat span{ font-size:.85rem; color:var(--color-ink-soft); }
.hero-art{ position:relative; }
.hero-art svg{ width:100%; height:auto; }

/* =========== TIMELINE (signature element) =========== */
.timeline-wrap{ position:relative; }
.timeline-track{ position:relative; padding-top: var(--space-md); }
.timeline-line{ position:absolute; left:0; right:0; top: 96px; height:2px; background: var(--color-line); }
.timeline-line-progress{ position:absolute; left:0; top:0; height:100%; width:0%; background: var(--color-amber); transform-origin:left; }
.timeline-scroller{ display:flex; gap: var(--space-lg); overflow-x:auto; scroll-snap-type: x proximity; padding-bottom: var(--space-md); scrollbar-width: thin; scrollbar-color: var(--color-amber) transparent; }
.timeline-item{ flex: 0 0 240px; scroll-snap-align:start; position:relative; padding-top: var(--space-lg); }
.timeline-dot{ position:absolute; top: 88px; left:0; width:18px; height:18px; border-radius:50%; background: var(--color-surface); border:3px solid var(--color-amber); transform: translateY(-50%); }
.timeline-year{ font-family: var(--font-mono); color: var(--color-amber-ink); font-size:.95rem; letter-spacing:.04em; display:block; margin-bottom:.4rem;}
.timeline-item h4{ font-family: var(--font-display); font-size:1.15rem; margin-bottom:.35rem; }
.timeline-item p{ font-size:.92rem; color: var(--color-ink-soft); margin:0; }
.timeline-item a.tl-link{ font-size:.82rem; font-weight:600; color: var(--color-amber-ink); }

/* =========== TOPIC CLUSTERS (Semantic SEO / Topical Authority) =========== */
.cluster-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: var(--space-md); }
.cluster-card{
  background: var(--color-surface); border:var(--border); border-radius: var(--radius-md);
  padding: var(--space-md); transition: transform .3s ease, box-shadow .3s ease; display:flex; flex-direction:column; height:100%;
}
.cluster-card:hover{ transform: translateY(-6px); box-shadow: 0 24px 50px -28px rgba(22,40,61,.3); }
.cluster-icon{ width:40px; height:40px; margin-bottom: var(--space-sm); color: var(--color-amber-ink); }
.cluster-count{ font-family: var(--font-mono); font-size:.78rem; color: var(--color-sea); margin: .3rem 0 .8rem; }
.cluster-card a.btn{ margin-top:auto; align-self:flex-start; }

/* =========== BLOG =========== */
.blog-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: var(--space-md); }
.blog-card{ display:flex; flex-direction:column; }
.blog-thumb{ aspect-ratio: 16/10; border-radius: var(--radius-md); margin-bottom: var(--space-sm); background: linear-gradient(150deg, var(--color-bg-alt), var(--color-amber-soft)); overflow:hidden; }
.blog-thumb img{ width:100%; height:100%; object-fit:cover; }

/* Honeypot anti-spam field: off-screen, not display:none (some bots skip display:none) */
.hp-field{ position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden; }
.newsletter-status:not(.visually-hidden){ margin-top:.6rem; font-size:.85rem; color:#B7D0C4; }
.cta-form{ flex-wrap:wrap; }
.blog-tag{ font-family: var(--font-mono); font-size:.75rem; text-transform:uppercase; letter-spacing:.08em; color: var(--color-sea); }
.blog-card h3{ font-size: 1.3rem; margin: .5rem 0; }
.blog-meta{ font-size:.85rem; color: var(--color-ink-soft); }
.blog-card a.blog-link{ font-weight:600; color: var(--color-ink); }
.blog-card a.blog-link:hover{ color: var(--color-amber-ink); }
.blog-filter{ display:flex; flex-wrap:wrap; gap:.6rem; margin-bottom: var(--space-md); }
.blog-filter button{
  font-family: var(--font-mono); font-size:.8rem; padding:.4rem .9rem; border-radius:999px; border: var(--border);
  background: var(--color-surface); color: var(--color-ink-soft); cursor:pointer; transition:.2s;
}
.blog-filter button.is-active, .blog-filter button:hover{ background: var(--color-ink); color:#fff; border-color: var(--color-ink); }

/* =========== EDITORIAL / E-E-A-T (no named guide — editorial standards) =========== */
.editorial-card{
  display:grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-md);
  background: var(--color-surface); border:var(--border); border-radius: var(--radius-md); padding: var(--space-lg);
}
.editorial-item h4{ font-family: var(--font-display); font-size:1.1rem; margin-bottom:.4rem; }
.editorial-item p{ color: var(--color-ink-soft); font-size:.95rem; margin:0; }
.editorial-icon{ width:32px; height:32px; margin-bottom:.7rem; color: var(--color-amber-ink); }

/* =========== FAQ =========== */
.faq-list{ max-width: 820px; }
.faq-item{ border-bottom: var(--border); }
.faq-q{ width:100%; text-align:left; background:none; border:0; padding: 1.4rem 0; cursor:pointer; display:flex; align-items:center; justify-content:space-between; font-family: var(--font-display); font-size:1.15rem; color: var(--color-ink); }
.faq-q .icon{ transition: transform .3s ease; flex-shrink:0; margin-left:1rem; color: var(--color-amber-ink); }
.faq-item.is-open .faq-q .icon{ transform: rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition: max-height .35s ease; color: var(--color-ink-soft); }
.faq-a p{ padding-bottom: 1.4rem; margin:0; }

/* =========== NEWSLETTER / CTA BAND =========== */
.cta-band{ background: var(--color-ink); color:#fff; border-radius: var(--radius-md); padding: var(--space-lg); display:grid; grid-template-columns: 1.2fr .8fr; gap: var(--space-lg); align-items:center; }
.cta-band h2{ color:#fff; }
.cta-band p{ color: #C9D3DC; }
.cta-form{ display:flex; gap:.6rem; }
.cta-form input{ flex:1; padding: .9rem 1.1rem; border-radius: 999px; border:1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08); color:#fff; font-family: var(--font-body); }
.cta-form input::placeholder{ color: #9FADB9; }

/* =========== FOOTER =========== */
.site-footer{ background: var(--color-bg-alt); border-top: var(--border); padding-block: var(--space-lg) var(--space-md); }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-md); margin-bottom: var(--space-md); }
.footer-grid h5{ font-family: var(--font-mono); font-size:.8rem; text-transform:uppercase; letter-spacing:.08em; color: var(--color-ink-soft); margin-bottom: var(--space-sm); }
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.55rem; }
.footer-grid a:hover{ color: var(--color-amber-ink); }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem; border-top: var(--border); padding-top: var(--space-sm); font-size:.85rem; color: var(--color-ink-soft); }

/* =========== PILLAR / LANDING PAGE ELEMENTS =========== */
.pillar-toc{ background: var(--color-surface); border:var(--border); border-radius: var(--radius-md); padding: var(--space-md); margin-bottom: var(--space-lg); }
.pillar-toc h2{ font-size: 1.2rem; }
.pillar-toc ol{ margin:0; padding-left: 1.2rem; color: var(--color-ink-soft); }
.pillar-toc a:hover{ color: var(--color-amber-ink); }
.pillar-related{ display:grid; grid-template-columns: repeat(3,1fr); gap: var(--space-md); margin-top: var(--space-md); }

/* =========== RESPONSIVE =========== */
@media (max-width: 991px){
  .hero{ grid-template-columns: 1fr; }
  .hero-art{ order:-1; }
  .cluster-grid{ grid-template-columns: repeat(2,1fr); }
  .blog-grid{ grid-template-columns: repeat(2,1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .editorial-card{ grid-template-columns: 1fr; }
  .pillar-related{ grid-template-columns: 1fr; }
}
@media (max-width: 767px){
  .nav-links{ position:fixed; inset: 64px 0 auto 0; background: var(--color-bg); flex-direction:column; align-items:flex-start; padding: var(--space-md); gap: 1.25rem; transform: translateY(-8px); opacity:0; pointer-events:none; transition:.25s ease; border-bottom: var(--border); box-shadow: 0 20px 40px rgba(22,40,61,.08); }
  .nav-links.is-open{ transform:none; opacity:1; pointer-events:auto; }
  .nav-cta{ display:none; }
  .nav-toggle{ display:block; }
  .cluster-grid, .blog-grid{ grid-template-columns: 1fr; }
  .cta-band{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
}