@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --canvas:#f7f7f4;
  --ink:#26251e;
  --body:#5a5852;
  --muted:#807d72;
  --muted-soft:#a09c92;
  --accent:#f54e00;
  --card:#ffffff;
  --border:#e6e5e0;
  --border-soft:#efeee8;
  --border-strong:#cfcdc4;
  --success:#1f8a65;
  --error:#cf2d56;
  --radius-sm:6px;
  --radius-md:8px;
  --radius-lg:12px;
  --section:80px;
  --max-w:1200px;
}

html{font-size:16px;scroll-behavior:smooth}

body{
  font-family:'Inter',system-ui,'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-weight:400;
  background:var(--canvas);
  color:var(--body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{color:var(--ink);font-weight:400;line-height:1.2;letter-spacing:-0.02em}
h1{font-size:2.625rem;letter-spacing:-0.03em}
h2{font-size:2rem;letter-spacing:-0.02em}
h3{font-size:1.375rem;letter-spacing:-0.01em}
h4{font-size:1.0625rem;font-weight:600;letter-spacing:0}

p{margin-bottom:1rem;color:var(--body)}
a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}

.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

.site-nav{
  background:var(--canvas);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:100;
  height:64px;
  display:flex;
  align-items:center;
}

.nav-inner{display:flex;align-items:center;justify-content:space-between;width:100%}

.nav-logo{
  font-size:1rem;
  font-weight:600;
  color:var(--ink);
  text-decoration:none;
  letter-spacing:-0.01em;
}
.nav-logo span{color:var(--accent)}

.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{font-size:0.875rem;font-weight:500;color:var(--body);text-decoration:none}
.nav-links a:hover{color:var(--ink)}

.nav-hamburger{
  display:none;
  background:none;
  border:none;
  cursor:pointer;
  padding:8px;
  flex-direction:column;
  gap:5px;
}
.nav-hamburger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px}

.nav-mobile{
  display:none;
  position:fixed;
  top:64px;
  left:0;
  right:0;
  background:var(--canvas);
  border-bottom:1px solid var(--border);
  padding:20px 24px;
  z-index:99;
}
.nav-mobile.open{display:block}
.nav-mobile ul{list-style:none;display:flex;flex-direction:column;gap:16px}
.nav-mobile ul a{font-size:0.9375rem;font-weight:500;color:var(--ink);text-decoration:none}

.hero{padding:var(--section) 0;border-bottom:1px solid var(--border)}

.hero-label{
  display:inline-block;
  font-size:0.6875rem;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:20px;
}

.hero h1{font-size:clamp(2rem,5vw,3.375rem);max-width:760px;margin-bottom:20px}

.hero-desc{
  font-size:1.0625rem;
  color:var(--body);
  max-width:560px;
  margin-bottom:0;
  line-height:1.65;
}

.hero-img{
  margin-top:48px;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  width:100%;
  aspect-ratio:16/7;
  object-fit:cover;
}

.section{padding:var(--section) 0}
.section-bordered{border-top:1px solid var(--border-soft)}

.section-label{
  font-size:0.6875rem;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:12px;
}

.section-title{font-size:clamp(1.625rem,3vw,2.25rem);color:var(--ink);margin-bottom:16px;max-width:640px}
.section-desc{color:var(--body);max-width:540px;margin-bottom:48px;line-height:1.65}

.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:24px;
  text-decoration:none;
  display:block;
  color:inherit;
}
.card:hover{border-color:var(--border-strong);text-decoration:none;color:inherit}

.card-tag{
  font-size:0.6875rem;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:12px;
}

.card h3{font-size:1.0625rem;font-weight:600;color:var(--ink);margin-bottom:10px;line-height:1.35}
.card p{font-size:0.875rem;color:var(--body);line-height:1.5;margin-bottom:0}

.article-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  text-decoration:none;
  display:block;
  color:inherit;
}
.article-card:hover{border-color:var(--border-strong);text-decoration:none;color:inherit}

.article-card-img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}

.article-card-body{padding:20px}
.article-card-body .card-tag{margin-bottom:8px}
.article-card-body h3{font-size:1rem;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.35}
.article-card-body p{font-size:0.8125rem;color:var(--body);line-height:1.5;margin-bottom:12px}
.article-card-meta{font-size:0.75rem;color:var(--muted)}

.article-header{padding:60px 0 40px;border-bottom:1px solid var(--border)}
.article-header h1{font-size:clamp(1.75rem,4vw,2.75rem);max-width:760px;margin-bottom:20px}
.article-header .article-meta{font-size:0.8125rem;color:var(--muted);margin-bottom:0}

.article-hero-img{
  width:100%;
  aspect-ratio:16/7;
  object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  margin:40px 0;
}

.article-layout{display:grid;grid-template-columns:1fr 280px;gap:48px;padding:48px 0 80px;align-items:start}

.article-body{min-width:0}
.article-body h2{font-size:1.5rem;margin:40px 0 16px}
.article-body h3{font-size:1.0625rem;font-weight:600;margin:28px 0 10px}
.article-body p{line-height:1.75;margin-bottom:1.25rem}
.article-body ul,.article-body ol{margin:0 0 1.25rem 1.5rem;color:var(--body);line-height:1.7}
.article-body li{margin-bottom:0.5rem}
.article-body a{color:var(--ink)}
.article-body a:hover{color:var(--accent)}

.article-info-box{
  background:var(--card);
  border:1px solid var(--border);
  border-left:3px solid var(--ink);
  border-radius:var(--radius-sm);
  padding:16px 20px;
  margin:28px 0;
}
.article-info-box p{font-size:0.875rem;margin-bottom:0;line-height:1.6}

.sidebar{}

.sidebar-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px;
  margin-bottom:20px;
}

.sidebar-card h4{
  font-size:0.6875rem;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}

.sidebar-links{list-style:none}
.sidebar-links li{border-top:1px solid var(--border-soft);padding:10px 0}
.sidebar-links li:first-child{border-top:none;padding-top:0}
.sidebar-links a{font-size:0.875rem;color:var(--ink);text-decoration:none;line-height:1.4;display:block}
.sidebar-links a:hover{color:var(--accent)}

.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:0.875rem;font-weight:500;color:var(--ink);margin-bottom:6px}
.form-group input,.form-group textarea,.form-group select{
  width:100%;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:11px 16px;
  font-family:inherit;
  font-size:0.9375rem;
  color:var(--ink);
  outline:none;
  transition:border-color 0.15s;
}
.form-group input:focus,.form-group textarea:focus{border-color:var(--border-strong)}
.form-group textarea{height:120px;resize:vertical}

.btn-submit{
  background:var(--ink);
  color:var(--canvas);
  border:none;
  border-radius:var(--radius-md);
  padding:12px 24px;
  font-family:inherit;
  font-size:0.875rem;
  font-weight:500;
  cursor:pointer;
  height:44px;
}
.btn-submit:hover{opacity:0.85}
.btn-submit:disabled{opacity:0.5;cursor:not-allowed}

.form-message{padding:12px 16px;border-radius:var(--radius-md);font-size:0.875rem;margin-top:16px;display:none}
.form-message.success{background:#f0faf6;border:1px solid #a3d9c3;color:var(--success);display:block}
.form-message.error-msg{background:#fff0f3;border:1px solid #f5b8c4;color:var(--error);display:block}

.site-footer{background:var(--canvas);border-top:1px solid var(--border);padding:52px 0 40px}

.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}

.footer-brand{font-size:1rem;font-weight:600;color:var(--ink);margin-bottom:10px;text-decoration:none;display:block}
.footer-brand span{color:var(--accent)}
.footer-tagline{font-size:0.8125rem;color:var(--muted);line-height:1.55;margin-bottom:0}

.footer-col h5{
  font-size:0.6875rem;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{font-size:0.8125rem;color:var(--body);text-decoration:none}
.footer-col ul a:hover{color:var(--ink)}

.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--border-soft);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
}
.footer-bottom p{font-size:0.75rem;color:var(--muted);margin-bottom:0}

#cookie-banner{
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  background:var(--ink);
  color:var(--canvas);
  padding:16px 24px;
  z-index:1000;
  display:none;
}
#cookie-banner.show{display:block}

.cookie-inner{
  max-width:var(--max-w);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cookie-inner p{font-size:0.8125rem;color:rgba(247,247,244,0.85);margin-bottom:0;flex:1;min-width:200px}
.cookie-inner a{color:var(--canvas)}
.cookie-btns{display:flex;gap:10px;flex-shrink:0}

.btn-cookie{padding:8px 16px;border-radius:var(--radius-md);font-size:0.8125rem;font-weight:500;cursor:pointer;border:none;font-family:inherit}
.btn-cookie-accept{background:var(--accent);color:#fff}
.btn-cookie-reject{background:transparent;color:var(--canvas);border:1px solid rgba(247,247,244,0.3)}

.page-header{padding:60px 0 48px;border-bottom:1px solid var(--border)}
.page-header h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:12px}
.page-header p{color:var(--muted);font-size:0.9375rem;margin-bottom:0}

.page-content{max-width:760px;padding:48px 0 80px}
.page-content h2{font-size:1.375rem;margin:36px 0 12px;color:var(--ink)}
.page-content h3{font-size:1.0625rem;font-weight:600;margin:24px 0 10px;color:var(--ink)}
.page-content p{line-height:1.75;color:var(--body)}
.page-content ul,.page-content ol{margin:0 0 1.25rem 1.5rem;color:var(--body);line-height:1.7}
.page-content li{margin-bottom:0.5rem}

.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:56px 0 80px;align-items:start}

.divider{border:none;border-top:1px solid var(--border-soft);margin:40px 0}

.topics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
.topic-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}
.topic-item h4{font-size:0.9375rem;font-weight:600;color:var(--ink);margin-bottom:8px}
.topic-item p{font-size:0.8125rem;color:var(--body);margin-bottom:0;line-height:1.5}

@media(max-width:1024px){
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .sidebar{display:none}
  .about-grid{grid-template-columns:1fr}
  .topics-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:768px){
  .nav-links{display:none}
  .nav-hamburger{display:flex}
  .cards-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .topics-grid{grid-template-columns:1fr}
}

@media(max-width:480px){
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cookie-inner{flex-direction:column;align-items:flex-start}
}