/* =========================================================
   ESTRALA — wspólny arkusz stylów dla artykułów eksperckich
   Edytuj ten plik, aby zmienić wygląd wszystkich artykułów naraz.
   ========================================================= */
@font-face{
  font-family:'Open Sans';
  src:url('../fonts/OpenSans-Variable.ttf') format('truetype-variations'),
      url('../fonts/OpenSans-Variable.ttf') format('truetype');
  font-weight:300 800; font-stretch:75% 100%; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Open Sans';
  src:url('../fonts/OpenSans-Italic-Variable.ttf') format('truetype-variations'),
      url('../fonts/OpenSans-Italic-Variable.ttf') format('truetype');
  font-weight:300 800; font-stretch:75% 100%; font-style:italic; font-display:swap;
}
:root{
  --forest-900:#0a1410;
  --forest-800:#102219;
  --emerald:#2d8e4a;
  --moss:#3a7a4e;
  --gold:#b8924a;
  --gold-light:#d4ae6a;
  --gold-pale:#ead9b8;
  --linen:#faf7f0;
  --paper:#f4f1ec;
  --pure:#ffffff;
  --stone-700:#3a3f3a;
  --stone-600:#54605a;
  --stone-500:#646e68;
  --r-md:14px;
  --ease-out:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Open Sans","Segoe UI",system-ui,sans-serif;
  color:var(--stone-700);
  background:var(--linen);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--emerald);}
img{max-width:100%;display:block;}

/* ---------- TOP BAR ---------- */
.art-topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(10,20,16,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(234,217,184,.15);
}
.art-topbar-inner{
  max-width:1100px;margin:0 auto;padding:.85rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.art-brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--linen);font-weight:800;letter-spacing:.04em;font-size:1.05rem;}
.art-brand .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--emerald),var(--gold));}
.art-brand .art-logo{height:32px;width:32px;display:block;}
.art-topbar-links{display:flex;gap:1.4rem;align-items:center;}
.art-topbar-links a{color:rgba(244,247,240,.82);text-decoration:none;font-size:.9rem;font-weight:600;transition:color .25s;}
.art-topbar-links a:hover{color:var(--gold-light);}
.art-topbar-cta{
  background:linear-gradient(135deg,var(--emerald),var(--moss));
  color:#fff!important;padding:.5rem 1.1rem;border-radius:999px;font-size:.85rem;
}
@media(max-width:640px){.art-topbar-links a:not(.art-topbar-cta){display:none;}}

/* ---------- ARTICLE HEADER ---------- */
.art-hero{
  background:linear-gradient(160deg,var(--forest-900),var(--forest-800));
  color:var(--linen);padding:3.5rem 1.5rem 3rem;
}
.art-hero-inner{max-width:760px;margin:0 auto;}
.art-cat{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--gold-light);background:rgba(234,217,184,.1);
  padding:.35rem .85rem;border-radius:999px;margin-bottom:1.25rem;
}
.art-hero h1{font-size:2.4rem;line-height:1.15;margin:0 0 1rem;color:#fff;font-weight:800;}
.art-hero .art-lead{font-size:1.15rem;color:rgba(244,247,240,.82);margin:0 0 1.5rem;}
.art-meta{display:flex;flex-wrap:wrap;gap:1.25rem;font-size:.85rem;color:rgba(244,247,240,.8);}
.art-meta span{display:inline-flex;align-items:center;gap:.4rem;}
@media(max-width:640px){.art-hero h1{font-size:1.8rem;}}

/* ---------- ARTICLE BODY ---------- */
.art-body{max-width:760px;margin:0 auto;padding:3rem 1.5rem;}
.art-body h2{font-size:1.65rem;color:var(--forest-900);margin:2.5rem 0 1rem;line-height:1.25;}
.art-body h3{font-size:1.25rem;color:var(--forest-800);margin:2rem 0 .75rem;}
.art-body p{font-size:1.05rem;line-height:1.8;color:var(--stone-700);margin:0 0 1.25rem;}
.art-body ul,.art-body ol{margin:0 0 1.5rem;padding-left:1.3rem;}
.art-body li{font-size:1.05rem;line-height:1.75;margin-bottom:.6rem;color:var(--stone-700);}
.art-body strong{color:var(--forest-900);}
.art-body blockquote{
  margin:2rem 0;padding:1.25rem 1.75rem;
  border-left:4px solid var(--gold);background:var(--paper);border-radius:0 12px 12px 0;
  font-style:italic;color:var(--stone-600);font-size:1.08rem;
}
.art-figure{margin:2rem 0;}
.art-figure img{border-radius:14px;width:100%;box-shadow:0 14px 36px rgba(10,20,16,.12);}
.art-figure figcaption{font-size:.85rem;color:var(--stone-500);margin-top:.6rem;text-align:center;}

/* Callout box */
.art-callout{
  background:var(--pure);border:1px solid rgba(10,20,16,.08);border-left:4px solid var(--emerald);
  border-radius:0 14px 14px 0;padding:1.5rem 1.75rem;margin:2rem 0;
  box-shadow:0 10px 28px rgba(10,20,16,.05);
}
.art-callout h4{margin:0 0 .6rem;color:var(--forest-900);font-size:1.05rem;display:flex;align-items:center;gap:.5rem;}
.art-callout h4 i{color:var(--emerald);}
.art-callout p{font-size:.97rem;margin:0;color:var(--stone-600);}

/* Key takeaways */
.art-takeaways{background:var(--forest-900);color:var(--linen);border-radius:16px;padding:2rem 2.25rem;margin:2.5rem 0;}
.art-takeaways h4{color:var(--gold-light);margin:0 0 1rem;font-size:1.1rem;}
.art-takeaways ul{list-style:none;padding:0;margin:0;}
.art-takeaways li{position:relative;padding-left:1.8rem;margin-bottom:.8rem;font-size:1rem;color:rgba(244,247,240,.88);}
.art-takeaways li::before{content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;color:var(--emerald);}

/* References */
.art-refs{margin:2.5rem 0;padding:1.5rem 0 0;border-top:1px solid rgba(10,20,16,.1);}
.art-refs h4{font-size:.95rem;color:var(--stone-600);text-transform:uppercase;letter-spacing:.05em;margin:0 0 .75rem;}
.art-refs ol{font-size:.85rem;color:var(--stone-500);line-height:1.6;}
.art-refs a{color:var(--moss);word-break:break-word;}

/* Disclaimer */
.art-disclaimer{font-size:.82rem;font-style:italic;color:var(--stone-500);background:var(--paper);border-radius:12px;padding:1.1rem 1.4rem;margin:2rem 0;line-height:1.6;}

/* ---------- CTA ---------- */
.art-cta{
  background:linear-gradient(135deg,var(--forest-900),var(--emerald));
  color:#fff;border-radius:20px;padding:2.75rem 2.5rem;margin:3rem 0 0;text-align:center;
  box-shadow:0 24px 56px rgba(10,20,16,.25);
}
.art-cta h3{color:#fff;font-size:1.6rem;margin:0 0 .75rem;}
.art-cta p{color:rgba(255,255,255,.9);font-size:1.05rem;margin:0 auto 1.5rem;max-width:520px;}
.art-cta-code{
  display:inline-block;background:rgba(255,255,255,.12);border:1px dashed var(--gold-light);
  border-radius:10px;padding:.5rem 1.1rem;font-weight:800;letter-spacing:.12em;color:var(--gold-pale);margin-bottom:1.5rem;
}
.art-cta-btns{display:flex;gap:.85rem;justify-content:center;flex-wrap:wrap;}
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;font-weight:700;
  padding:.85rem 1.6rem;border-radius:999px;font-size:.98rem;transition:transform .3s var(--ease-out),box-shadow .3s;
}
.btn-primary{background:var(--gold);color:var(--forest-900);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(184,146,74,.4);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}

/* ---------- RELATED / BACK ---------- */
.art-back{max-width:760px;margin:2.5rem auto 0;padding:0 1.5rem;}
.art-back a{color:var(--emerald);text-decoration:none;font-weight:700;font-size:.95rem;}
.art-back a:hover{text-decoration:underline;}

/* ---------- FOOTER ---------- */
.art-footer{background:var(--forest-900);color:rgba(244,247,240,.8);text-align:center;padding:2.5rem 1.5rem;margin-top:3rem;font-size:.85rem;}
.art-footer a{color:var(--gold-light);text-decoration:none;}
.art-footer .art-social{display:flex;gap:.8rem;justify-content:center;margin:1rem 0;}
.art-footer .art-social a{width:38px;height:38px;border-radius:50%;background:rgba(234,217,184,.08);display:flex;align-items:center;justify-content:center;color:var(--gold-pale);transition:background .3s;}
.art-footer .art-social a:hover{background:rgba(234,217,184,.2);}

/* =========================================================
   LISTING PAGE (index.html)
   ========================================================= */
.list-hero{background:linear-gradient(160deg,var(--forest-900),var(--forest-800));color:var(--linen);padding:4rem 1.5rem 3.5rem;text-align:center;}
.list-hero .eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-light);margin-bottom:1rem;}
.list-hero h1{font-size:2.6rem;margin:0 0 1rem;color:#fff;font-weight:800;}
.list-hero p{font-size:1.15rem;color:rgba(244,247,240,.82);max-width:640px;margin:0 auto;}
.list-wrap{max-width:1100px;margin:0 auto;padding:3rem 1.5rem 4rem;}
.list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.75rem;}
.art-card{
  background:var(--pure);border:1px solid rgba(10,20,16,.08);border-radius:18px;overflow:hidden;
  text-decoration:none;color:inherit;display:flex;flex-direction:column;
  transition:transform .35s var(--ease-out),box-shadow .35s;
}
.art-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(10,20,16,.14);}
.art-card-img{aspect-ratio:16/9;background:linear-gradient(135deg,var(--emerald),var(--forest-800));overflow:hidden;}
.art-card-img img{width:100%;height:100%;object-fit:cover;}
.art-card-body{padding:1.5rem 1.6rem 1.75rem;display:flex;flex-direction:column;flex:1;}
.art-card-cat{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--emerald);margin-bottom:.6rem;}
.art-card h3{font-size:1.2rem;color:var(--forest-900);margin:0 0 .6rem;line-height:1.3;}
.art-card p{font-size:.92rem;color:var(--stone-600);margin:0 0 1.1rem;flex:1;}
.art-card-more{font-size:.85rem;font-weight:700;color:var(--gold);display:inline-flex;align-items:center;gap:.4rem;}
.art-card:hover .art-card-more i{transform:translateX(4px);}
.art-card-more i{transition:transform .3s;}
.list-intro{max-width:760px;margin:0 auto 2.5rem;text-align:center;color:var(--stone-600);font-size:1.02rem;}
@media(max-width:640px){.list-hero h1{font-size:1.9rem;}}