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

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

:root{
  --canvas:#f7f7f4;
  --canvas-soft:#fafaf7;
  --card:#ffffff;
  --ink:#26251e;
  --body:#5a5852;
  --muted:#807d72;
  --muted-soft:#a09c92;
  --primary:#f54e00;
  --primary-active:#d04200;
  --on-primary:#ffffff;
  --hairline:#e6e5e0;
  --hairline-soft:#efeee8;
  --hairline-strong:#cfcdc4;
  --surface-strong:#e6e5e0;
  --success:#1f8a65;
  --error:#cf2d56;
  --max-width:1200px;
  --section-pad:80px;
}

html{scroll-behavior:smooth}

body{
  font-family:'Inter',system-ui,'Helvetica Neue',Helvetica,Arial,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.5;
  color:var(--body);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}

a{color:var(--ink);text-decoration:none}
a:hover{color:var(--primary)}

img{max-width:100%;height:auto;display:block}

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

.site-header{
  background:var(--canvas);
  border-bottom:1px solid var(--hairline);
  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%;
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 24px;
}

.nav-logo{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:-0.2px;
}

.nav-logo span{color:var(--primary)}

.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  list-style:none;
}

.nav-links a{
  font-size:14px;
  font-weight:500;
  color:var(--body);
  transition:color .15s;
}

.nav-links a:hover,.nav-links a.active{color:var(--ink)}

.nav-hamburger{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:4px;
}

.nav-hamburger span{
  display:block;
  width:22px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:all .2s;
}

.nav-mobile{
  display:none;
  position:fixed;
  top:64px;
  left:0;
  right:0;
  background:var(--canvas);
  border-bottom:1px solid var(--hairline);
  padding:16px 24px;
  z-index:99;
}

.nav-mobile.open{display:block}

.nav-mobile ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:0;
}

.nav-mobile ul li a{
  display:block;
  font-size:15px;
  font-weight:500;
  color:var(--body);
  padding:12px 0;
  border-bottom:1px solid var(--hairline-soft);
}

.nav-mobile ul li:last-child a{border-bottom:none}

.hero-band{
  padding:var(--section-pad) 0;
  background:var(--canvas);
}

.hero-band h1{
  font-size:clamp(32px,5vw,56px);
  font-weight:400;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-1.2px;
  max-width:740px;
  margin-bottom:20px;
}

.hero-band .hero-desc{
  font-size:17px;
  color:var(--body);
  max-width:560px;
  line-height:1.6;
  margin-bottom:40px;
}

.hero-meta{
  font-size:13px;
  color:var(--muted);
  letter-spacing:0.5px;
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:16px;
}

.hero-image-wrap{
  margin-top:56px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--hairline);
}

.hero-image-wrap img{
  width:100%;
  height:400px;
  object-fit:cover;
}

section.content-band{
  padding:var(--section-pad) 0;
}

section.content-band + section.content-band{
  border-top:1px solid var(--hairline-soft);
}

.section-label{
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:16px;
}

.section-title{
  font-size:clamp(26px,3.5vw,36px);
  font-weight:400;
  color:var(--ink);
  line-height:1.2;
  letter-spacing:-0.72px;
  margin-bottom:16px;
}

.section-subtitle{
  font-size:16px;
  color:var(--body);
  max-width:580px;
  line-height:1.6;
  margin-bottom:48px;
}

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

.card{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:12px;
  padding:24px;
  display:flex;
  flex-direction:column;
}

.card-image{
  margin:-24px -24px 20px;
  border-radius:11px 11px 0 0;
  overflow:hidden;
}

.card-image img{
  width:100%;
  height:180px;
  object-fit:cover;
}

.card-label{
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:10px;
}

.card h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  line-height:1.35;
  margin-bottom:10px;
}

.card p{
  font-size:14px;
  color:var(--body);
  line-height:1.55;
  flex:1;
}

.card-link{
  display:inline-block;
  margin-top:16px;
  font-size:13px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--hairline-strong);
  padding-bottom:2px;
  transition:color .15s,border-color .15s;
}

.card-link:hover{color:var(--primary);border-color:var(--primary)}

.info-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}

.info-card{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:12px;
  padding:28px;
}

.info-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:12px;
}

.info-card p{
  font-size:15px;
  color:var(--body);
  line-height:1.6;
}

.badge{
  display:inline-block;
  background:var(--surface-strong);
  color:var(--ink);
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  border-radius:9999px;
  padding:4px 10px;
  margin-bottom:12px;
}

.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}

.two-col-text h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:400;
  color:var(--ink);
  line-height:1.25;
  letter-spacing:-0.5px;
  margin-bottom:16px;
}

.two-col-text p{
  font-size:15px;
  color:var(--body);
  line-height:1.65;
  margin-bottom:14px;
}

.two-col-text p:last-child{margin-bottom:0}

.two-col-image{
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--hairline);
}

.two-col-image img{
  width:100%;
  height:340px;
  object-fit:cover;
}

.article-layout{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:48px;
  align-items:start;
  padding:var(--section-pad) 0;
}

.article-body h1{
  font-size:clamp(28px,4vw,42px);
  font-weight:400;
  color:var(--ink);
  line-height:1.15;
  letter-spacing:-0.8px;
  margin-bottom:20px;
}

.article-body .article-meta{
  font-size:13px;
  color:var(--muted);
  margin-bottom:32px;
  padding-bottom:24px;
  border-bottom:1px solid var(--hairline-soft);
}

.article-body .article-meta span{margin-right:16px}

.article-body h2{
  font-size:24px;
  font-weight:600;
  color:var(--ink);
  margin:40px 0 14px;
  line-height:1.3;
}

.article-body h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin:28px 0 10px;
}

.article-body p{
  font-size:16px;
  color:var(--body);
  line-height:1.7;
  margin-bottom:18px;
}

.article-body ul,.article-body ol{
  margin:16px 0 20px 24px;
}

.article-body li{
  font-size:16px;
  color:var(--body);
  line-height:1.65;
  margin-bottom:8px;
}

.article-body a{
  color:var(--ink);
  border-bottom:1px solid var(--hairline-strong);
  transition:color .15s;
}

.article-body a:hover{color:var(--primary)}

.article-image{
  margin:32px 0;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--hairline);
}

.article-image img{
  width:100%;
  height:300px;
  object-fit:cover;
}

.article-image figcaption{
  font-size:13px;
  color:var(--muted);
  padding:10px 16px;
  border-top:1px solid var(--hairline-soft);
  background:var(--card);
}

.article-sidebar{
  position:sticky;
  top:80px;
}

.sidebar-card{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:12px;
  padding:24px;
  margin-bottom:20px;
}

.sidebar-card h4{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:14px;
  letter-spacing:0.2px;
}

.sidebar-card ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.sidebar-card ul li a{
  font-size:14px;
  color:var(--body);
  line-height:1.4;
  border-bottom:none;
}

.sidebar-card ul li a:hover{color:var(--primary)}

.sidebar-card p{
  font-size:14px;
  color:var(--body);
  line-height:1.6;
  margin-bottom:12px;
}

.highlight-box{
  background:var(--canvas-soft);
  border:1px solid var(--hairline);
  border-left:3px solid var(--ink);
  border-radius:0 8px 8px 0;
  padding:20px 24px;
  margin:28px 0;
}

.highlight-box p{
  margin-bottom:0;
  font-size:15px;
  color:var(--body);
}

.key-points{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:12px;
  padding:24px 28px;
  margin:28px 0;
}

.key-points h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}

.key-points ul{
  margin:0;
  padding-left:20px;
}

.key-points li{
  font-size:15px;
  color:var(--body);
  margin-bottom:8px;
}

.contact-form-wrap{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:12px;
  padding:40px;
}

.form-group{
  margin-bottom:20px;
}

.form-group label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  margin-bottom:6px;
}

.form-group input,
.form-group textarea{
  width:100%;
  background:var(--card);
  border:1px solid var(--hairline-strong);
  border-radius:8px;
  padding:12px 16px;
  height:44px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  transition:border-color .15s;
  outline:none;
}

.form-group textarea{
  height:120px;
  resize:vertical;
}

.form-group input:focus,
.form-group textarea:focus{
  border-color:var(--ink);
}

.form-group input::placeholder,
.form-group textarea::placeholder{
  color:var(--muted-soft);
}

.form-submit-btn{
  background:var(--ink);
  color:var(--canvas);
  border:none;
  border-radius:8px;
  padding:12px 24px;
  font-size:14px;
  font-weight:500;
  font-family:inherit;
  cursor:pointer;
  height:44px;
  transition:opacity .15s;
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.form-submit-btn:hover{opacity:0.85}

.form-submit-btn:disabled{opacity:0.6;cursor:not-allowed}

.form-success{
  display:none;
  background:var(--canvas-soft);
  border:1px solid var(--hairline);
  border-radius:8px;
  padding:16px 20px;
  font-size:15px;
  color:var(--success);
  margin-top:16px;
}

.form-success.show{display:block}

.page-layout{
  display:grid;
  grid-template-columns:1fr 280px;
  gap:48px;
  padding:var(--section-pad) 0;
}

.page-content h1{
  font-size:clamp(28px,4vw,40px);
  font-weight:400;
  color:var(--ink);
  letter-spacing:-0.7px;
  margin-bottom:12px;
}

.page-content .page-meta{
  font-size:13px;
  color:var(--muted);
  margin-bottom:36px;
  padding-bottom:24px;
  border-bottom:1px solid var(--hairline-soft);
}

.page-content h2{
  font-size:22px;
  font-weight:600;
  color:var(--ink);
  margin:36px 0 12px;
}

.page-content p{
  font-size:16px;
  color:var(--body);
  line-height:1.7;
  margin-bottom:16px;
}

.page-content ul,.page-content ol{
  margin:12px 0 18px 24px;
}

.page-content li{
  font-size:16px;
  color:var(--body);
  line-height:1.65;
  margin-bottom:8px;
}

.page-content a{color:var(--ink);border-bottom:1px solid var(--hairline-strong)}
.page-content a:hover{color:var(--primary)}

.divider{
  height:1px;
  background:var(--hairline-soft);
  margin:48px 0;
}

.site-footer{
  background:var(--canvas);
  border-top:1px solid var(--hairline);
  padding:64px 0 48px;
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr 1fr;
  gap:32px;
  margin-bottom:48px;
}

.footer-brand{
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:12px;
}

.footer-desc{
  font-size:14px;
  color:var(--body);
  line-height:1.6;
  max-width:260px;
}

.footer-col h4{
  font-size:12px;
  font-weight:600;
  letter-spacing:0.7px;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}

.footer-col ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:8px;
}

.footer-col ul li a{
  font-size:14px;
  color:var(--body);
  transition:color .15s;
}

.footer-col ul li a:hover{color:var(--ink)}

.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:24px;
  border-top:1px solid var(--hairline-soft);
}

.footer-bottom p{
  font-size:13px;
  color:var(--muted);
}

.footer-bottom-links{
  display:flex;
  gap:20px;
}

.footer-bottom-links a{
  font-size:13px;
  color:var(--muted);
  transition:color .15s;
}

.footer-bottom-links a:hover{color:var(--ink)}

.cookie-banner{
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  background:var(--ink);
  color:var(--canvas);
  padding:20px 24px;
  z-index:200;
  display:none;
}

.cookie-banner.show{display:block}

.cookie-inner{
  max-width:var(--max-width);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

.cookie-text{
  font-size:14px;
  color:var(--canvas);
  line-height:1.5;
  flex:1;
  min-width:240px;
}

.cookie-text a{
  color:var(--canvas);
  border-bottom:1px solid rgba(247,247,244,0.4);
}

.cookie-actions{
  display:flex;
  gap:12px;
  flex-shrink:0;
}

.btn-cookie-accept{
  background:var(--primary);
  color:var(--on-primary);
  border:none;
  border-radius:8px;
  padding:8px 18px;
  font-size:14px;
  font-weight:500;
  font-family:inherit;
  cursor:pointer;
  transition:background .15s;
}

.btn-cookie-accept:hover{background:var(--primary-active)}

.btn-cookie-reject{
  background:transparent;
  color:var(--canvas);
  border:1px solid rgba(247,247,244,0.4);
  border-radius:8px;
  padding:8px 18px;
  font-size:14px;
  font-weight:500;
  font-family:inherit;
  cursor:pointer;
  transition:border-color .15s;
}

.btn-cookie-reject:hover{border-color:var(--canvas)}

.breadcrumb{
  font-size:13px;
  color:var(--muted);
  padding:16px 0;
  border-bottom:1px solid var(--hairline-soft);
  margin-bottom:0;
}

.breadcrumb a{color:var(--muted);border-bottom:none}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb span{margin:0 6px;color:var(--muted-soft)}

.spinner{
  width:14px;
  height:14px;
  border:2px solid rgba(247,247,244,0.3);
  border-top-color:var(--canvas);
  border-radius:50%;
  animation:spin .7s linear infinite;
  display:none;
}

@keyframes spin{to{transform:rotate(360deg)}}

.intro-strip{
  background:var(--canvas-soft);
  border-bottom:1px solid var(--hairline-soft);
  padding:12px 0;
}

.intro-strip p{
  font-size:13px;
  color:var(--muted);
  text-align:center;
}

.stat-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--hairline);
  border:1px solid var(--hairline);
  border-radius:12px;
  overflow:hidden;
  margin-bottom:48px;
}

.stat-item{
  background:var(--card);
  padding:24px 20px;
  text-align:center;
}

.stat-value{
  font-size:28px;
  font-weight:400;
  color:var(--ink);
  letter-spacing:-0.5px;
  line-height:1;
  margin-bottom:6px;
}

.stat-label{
  font-size:13px;
  color:var(--muted);
  line-height:1.4;
}

.topics-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  list-style:none;
}

.topics-list li{
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:8px;
  padding:14px 18px;
  font-size:14px;
  color:var(--body);
}

.topics-list li a{
  color:var(--body);
  font-weight:500;
}

.topics-list li a:hover{color:var(--primary)}

.reading-time{
  font-size:12px;
  color:var(--muted);
  font-weight:400;
}

@media(max-width:1024px){
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .article-layout{grid-template-columns:1fr}
  .page-layout{grid-template-columns:1fr}
  .article-sidebar{position:static}
}

@media(max-width:768px){
  :root{--section-pad:56px}
  .nav-links{display:none}
  .nav-hamburger{display:flex}
  .two-col{grid-template-columns:1fr}
  .info-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .topics-list{grid-template-columns:1fr}
  .contact-form-wrap{padding:24px}
}

@media(max-width:640px){
  .cards-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center}
  .cookie-inner{flex-direction:column}
  .stat-row{grid-template-columns:1fr 1fr}
}