:root{
  --color-primary:#f97316;
  --color-secondary:#fb923c;
  --color-accent:#10b981;
  --color-tertiary:#fff7ed;
  --color-dark:#111827;
  --color-text:#1f2937;
  --color-text-light:#6b7280;
  --color-border:#fed7aa;
  --color-bg-soft:#fffaf5;
  --shadow-soft:0 4px 20px rgba(249,115,22,.10);
  --shadow-medium:0 10px 30px rgba(249,115,22,.14);
  --shadow-strong:0 16px 50px rgba(17,24,39,.18);
  --font-heading:'Playfair Display',serif;
  --font-body:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-body);
  background:linear-gradient(180deg,var(--color-tertiary),#fff);
  color:var(--color-text);
}
a{color:inherit}

.header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid rgba(0,0,0,.06);
}
.header-container{
  max-width:1200px;
  margin:0 auto;
  padding:14px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  font-weight:800;
}
.logo-icon{
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-soft);
}
.logo-text{font-family:var(--font-heading);font-size:20px;line-height:1}
.logo-sub{font-family:var(--font-body);font-size:12px;font-weight:700;color:var(--color-text-light);margin-left:6px}

.nav-menu{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.nav-link{
  text-decoration:none;
  padding:10px 12px;
  border-radius:999px;
  font-weight:600;
  color:var(--color-text);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.nav-link:hover{background:rgba(249,115,22,.10)}
.nav-link.current-page{background:rgba(249,115,22,.14)}
.nav-link.btn-primary{
  background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
  color:#fff;
  box-shadow:var(--shadow-soft);
}
.nav-link.btn-primary:hover{filter:brightness(.98)}

.mobile-menu-toggle{
  display:none;
  border:1px solid rgba(0,0,0,.12);
  background:#fff;
  border-radius:12px;
  padding:10px 12px;
}

.mobile-menu-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
  z-index:1000;
}
.mobile-menu-overlay.active{opacity:1;pointer-events:auto}

.mobile-menu{
  position:fixed;
  top:0;
  right:-340px;
  width:320px;
  height:100vh;
  background:#fff;
  box-shadow:var(--shadow-strong);
  z-index:1001;
  padding:18px;
  transition:right .25s ease;
}
.mobile-menu.active{right:0}
.mobile-menu-close{
  border:none;
  background:transparent;
  font-size:18px;
  position:absolute;
  top:14px;
  right:14px;
}
.mobile-menu-nav{margin-top:42px;display:flex;flex-direction:column;gap:10px}
.mobile-menu-item{
  text-decoration:none;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(17,24,39,.03);
  font-weight:700;
  display:flex;
  align-items:center;
  gap:10px;
}
.mobile-menu-item.btn-primary{
  background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
  color:#fff;
}

.article-container{max-width:1100px;margin:26px auto 80px;padding:0 18px}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  font-weight:700;
  color:var(--color-primary);
  margin:14px 0 18px;
}

.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:var(--color-text-light);font-weight:600;margin:10px 0 22px}
.breadcrumbs .sep{opacity:.7}

.article-title{
  font-family:var(--font-heading);
  font-size:clamp(1.9rem,4vw,3rem);
  letter-spacing:-0.02em;
  margin:10px 0 6px;
}
.article-meta{color:var(--color-text-light);font-weight:600;margin:0 0 18px}
.article-intro{
  background:#fff;
  border:1px solid rgba(0,0,0,.06);
  border-left:6px solid var(--color-primary);
  border-radius:16px;
  padding:18px 18px;
  box-shadow:var(--shadow-soft);
  font-size:1.05rem;
  line-height:1.7;
}

.article-hero-image{
  width:100%;
  height:auto;
  border-radius:18px;
  margin:22px 0;
  box-shadow:var(--shadow-medium);
  aspect-ratio:16/9;
  object-fit:cover;
  background:rgba(0,0,0,.04);
}

.table-of-contents{
  background:#fff;
  border:1px solid rgba(0,0,0,.06);
  border-radius:18px;
  padding:18px 18px;
  box-shadow:var(--shadow-soft);
  margin:24px 0;
}
.table-of-contents h3{margin:0 0 12px;font-family:var(--font-heading)}
.table-of-contents ol{margin:0;padding-left:18px}
.table-of-contents a{text-decoration:none;color:var(--color-primary);font-weight:700}

.article-content{
  background:#fff;
  border:1px solid rgba(0,0,0,.06);
  border-radius:22px;
  padding:24px 22px;
  box-shadow:var(--shadow-soft);
}
.article-content p{line-height:1.85;margin:0 0 16px}
.article-content ul,.article-content ol{line-height:1.85;margin:0 0 18px;padding-left:18px}
.article-content h2{
  margin:30px 0 12px;
  font-family:var(--font-heading);
  font-size:1.7rem;
  display:flex;
  align-items:center;
  gap:10px;
}
.article-content h3{margin:18px 0 10px;font-size:1.25rem}
.h2-icon{color:var(--color-primary)}

.language-switcher{position:fixed;top:95px;right:20px;z-index:9999}
.lang-toggle-btn{border:none;background:#fff;border-radius:999px;padding:10px;box-shadow:var(--shadow-medium);cursor:pointer}
.lang-flag img{border-radius:999px;display:block}
.lang-dropdown{
  display:none;
  margin-top:10px;
  background:#fff;
  border:1px solid rgba(0,0,0,.08);
  border-radius:16px;
  padding:10px;
  box-shadow:var(--shadow-strong);
}
.language-switcher.active .lang-dropdown{display:block}
.lang-option{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 10px;
  border-radius:12px;
  text-decoration:none;
  font-weight:700;
  color:var(--color-text);
}
.lang-option:hover{background:rgba(249,115,22,.10)}
.lang-option.active{background:rgba(249,115,22,.14)}
.lang-name{white-space:nowrap}

.social-share{position:fixed;left:20px;top:110px;z-index:1200;display:flex;flex-direction:column;gap:10px}
.social-share-btn{
  width:44px;
  height:44px;
  border-radius:14px;
  background:#fff;
  border:1px solid rgba(0,0,0,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-soft);
  color:var(--color-text);
  text-decoration:none;
}
.social-share-btn:hover{transform:translateY(-2px)}

.scroll-to-top{
  position:fixed;
  bottom:22px;
  right:22px;
  width:48px;
  height:48px;
  border:none;
  border-radius:999px;
  background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
  color:#fff;
  box-shadow:var(--shadow-medium);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}
.scroll-to-top.show{opacity:1;pointer-events:auto}

@media (max-width:900px){
  .nav-menu{display:none}
  .mobile-menu-toggle{display:inline-flex}
  .language-switcher{top:78px;right:14px}
  .social-share{display:none}
}

@media (max-width:520px){
  .article-content{padding:18px 16px}
  .article-container{padding:0 14px}
}