@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;1,400&family=JetBrains+Mono:wght@400&display=swap');

:root {
  --color-canvas: #f7f7f4;
  --color-canvas-soft: #fafaf7;
  --color-surface-card: #ffffff;
  --color-surface-strong: #e6e5e0;
  --color-primary: #f54e00;
  --color-primary-active: #d04200;
  --color-ink: #26251e;
  --color-body: #5a5852;
  --color-body-strong: #26251e;
  --color-muted: #807d72;
  --color-muted-soft: #a09c92;
  --color-on-primary: #ffffff;
  --color-hairline: #e6e5e0;
  --color-hairline-soft: #efeee8;
  --color-hairline-strong: #cfcdc4;
  --color-semantic-success: #1f8a65;
  --color-semantic-error: #cf2d56;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-pill: 9999px;
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-base: 16px;
  --spacing-md: 20px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 80px;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  color: var(--color-ink);
  font-weight: 400;
}

h1 { font-size: 72px; letter-spacing: -2.16px; line-height: 1.1; }
h2 { font-size: 36px; letter-spacing: -0.72px; line-height: 1.2; }
h3 { font-size: 26px; letter-spacing: -0.325px; line-height: 1.25; }
h4 { font-size: 22px; letter-spacing: -0.11px; line-height: 1.3; }
h5 { font-size: 18px; font-weight: 600; line-height: 1.4; }
h6 { font-size: 16px; font-weight: 600; line-height: 1.4; }

p { color: var(--color-body); font-size: 16px; line-height: 1.5; }

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

code, pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.5;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

section { padding: var(--spacing-section) 0; }

.site-nav {
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.3px;
}

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

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-body);
  line-height: 1.4;
}

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

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

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

.hero-band {
  background: var(--color-canvas);
  padding: var(--spacing-section) 0 60px;
  border-bottom: 1px solid var(--color-hairline-soft);
}

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

.hero-band h1 {
  max-width: 820px;
  margin-bottom: var(--spacing-lg);
}

.hero-lead {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 580px;
  line-height: 1.65;
  margin-bottom: 0;
}

.hero-image-wrap {
  width: 100%;
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--color-hairline);
  margin-top: var(--spacing-xxl);
}

.hero-image-wrap img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  display: block;
}

.articles-section { background: var(--color-canvas); }

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

.section-head {
  font-size: 36px;
  letter-spacing: -0.72px;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xxl);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.article-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.article-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.article-card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

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

.article-card h3 {
  font-size: 20px;
  color: var(--color-ink);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  letter-spacing: -0.2px;
}

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

.article-read-link {
  display: inline-block;
  margin-top: var(--spacing-base);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-hairline-strong);
  padding-bottom: 2px;
}

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

.feature-band {
  background: var(--color-canvas-soft);
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg);
}

.feature-card-num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-card h5 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--spacing-xs);
}

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

.article-header {
  background: var(--color-canvas);
  padding: var(--spacing-section) 0 var(--spacing-xl);
  border-bottom: 1px solid var(--color-hairline-soft);
}

.breadcrumb {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-ink); }
.breadcrumb-sep { color: var(--color-hairline-strong); }

.article-meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: var(--spacing-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.article-meta-sep { color: var(--color-hairline-strong); }

.article-header h1 {
  font-size: 48px;
  letter-spacing: -1.4px;
  max-width: 860px;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.article-lead {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 660px;
  line-height: 1.65;
}

.article-hero-image {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  margin-top: var(--spacing-xxl);
  display: block;
}

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

.article-body h2 {
  font-size: 26px;
  letter-spacing: -0.325px;
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-base);
  color: var(--color-ink);
}

.article-body h3 {
  font-size: 20px;
  letter-spacing: -0.1px;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-ink);
}

.article-body p {
  margin-bottom: var(--spacing-base);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-body);
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--spacing-base);
  padding-left: var(--spacing-xl);
}

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

.article-body strong { color: var(--color-ink); font-weight: 600; }

.article-body a {
  color: var(--color-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-image-block { margin: var(--spacing-xxl) 0; }

.article-image-block img {
  width: 100%;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  display: block;
}

.article-image-caption {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: var(--spacing-xs);
  line-height: 1.4;
}

.article-infobox {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

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

.article-infobox p { margin-bottom: 0; font-size: 15px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-xl) 0;
  font-size: 14px;
}

.data-table th {
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-base);
  border-bottom: 1px solid var(--color-hairline-strong);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--color-muted);
}

.data-table td {
  padding: var(--spacing-sm) var(--spacing-base);
  border-bottom: 1px solid var(--color-hairline-soft);
  color: var(--color-body);
  line-height: 1.5;
}

.data-table tr:last-child td { border-bottom: none; }

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

.sidebar-box {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

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

.sidebar-box ul { list-style: none; padding: 0; }

.sidebar-box li {
  font-size: 14px;
  color: var(--color-body);
  border-bottom: 1px solid var(--color-hairline-soft);
  padding: var(--spacing-xs) 0;
}

.sidebar-box li:last-child { border-bottom: none; }

.sidebar-box a {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.5;
}

.sidebar-box a:hover { color: var(--color-ink); }

.article-refs {
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-hairline);
}

.article-refs h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.88px;
  text-transform: uppercase;
  margin-top: 0;
  margin-bottom: var(--spacing-base);
}

.article-refs ul { list-style: none; padding: 0; }
.article-refs li { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-xs); }
.article-refs a { color: var(--color-body); text-decoration: underline; text-underline-offset: 2px; }
.article-refs a:hover { color: var(--color-primary); }

.related-band {
  background: var(--color-canvas-soft);
  border-top: 1px solid var(--color-hairline);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.page-header {
  background: var(--color-canvas);
  padding: var(--spacing-section) 0 var(--spacing-xxl);
  border-bottom: 1px solid var(--color-hairline-soft);
}

.page-header h1 {
  font-size: 48px;
  letter-spacing: -1.4px;
  max-width: 720px;
  line-height: 1.1;
}

.page-header p {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 600px;
  margin-top: var(--spacing-base);
  line-height: 1.65;
}

.page-content { padding: var(--spacing-section) 0; }

.page-content h2 {
  font-size: 26px;
  letter-spacing: -0.325px;
  margin-bottom: var(--spacing-base);
  margin-top: var(--spacing-xxl);
  color: var(--color-ink);
}

.page-content h2:first-child { margin-top: 0; }

.page-content p {
  margin-bottom: var(--spacing-base);
  font-size: 16px;
  line-height: 1.75;
  max-width: 740px;
}

.page-content ul {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-base);
}

.page-content li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  margin-bottom: var(--spacing-xs);
  max-width: 740px;
}

.page-content a {
  color: var(--color-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-content a:hover { color: var(--color-primary); }

.contact-block { margin-top: var(--spacing-xxl); }

.contact-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: start;
}

.contact-form-wrap {
  background: var(--color-surface-card);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-xl);
}

.contact-form-wrap h3 {
  font-size: 20px;
  letter-spacing: -0.1px;
  margin-bottom: var(--spacing-lg);
}

.form-group { margin-bottom: var(--spacing-base); }

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

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

.form-group input:focus { border-color: var(--color-ink); }
.form-group input::placeholder { color: var(--color-muted-soft); }

.form-error {
  font-size: 13px;
  color: var(--color-semantic-error);
  margin-top: 4px;
  display: none;
}

.btn-submit {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  border-radius: var(--rounded-md);
  padding: 10px 18px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

.btn-submit:active { background: var(--color-primary-active); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.form-confirmation {
  display: none;
  padding: var(--spacing-base);
  background: #f0faf5;
  border: 1px solid var(--color-semantic-success);
  border-radius: var(--rounded-md);
  color: var(--color-semantic-success);
  font-size: 15px;
  margin-top: var(--spacing-base);
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

.footer-brand .nav-logo { display: inline-block; margin-bottom: var(--spacing-sm); }

.footer-brand p {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h6 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: var(--spacing-base);
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--spacing-xs); }

.footer-col a {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.5;
}

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

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

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

.footer-links {
  display: flex;
  gap: var(--spacing-base);
}

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

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

.disclaimer-band {
  background: var(--color-canvas-soft);
  border-top: 1px solid var(--color-hairline-soft);
  padding: var(--spacing-base) 0;
}

.disclaimer-band p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
  max-width: 900px;
}

.cookie-banner {
  position: fixed;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-ink);
  color: var(--color-canvas);
  border-radius: var(--rounded-lg);
  padding: var(--spacing-base) var(--spacing-xl);
  display: none;
  align-items: center;
  gap: var(--spacing-xl);
  max-width: 700px;
  width: calc(100% - 48px);
  z-index: 999;
  border: 1px solid rgba(255,255,255,0.08);
}

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

.cookie-banner a {
  color: var(--color-canvas);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-buttons { display: flex; gap: var(--spacing-xs); flex-shrink: 0; }

.btn-cookie-accept {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  border-radius: var(--rounded-md);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

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

.btn-cookie-reject {
  background: transparent;
  color: var(--color-canvas);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--rounded-md);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

@media (max-width: 1024px) {
  h1 { font-size: 56px; letter-spacing: -1.4px; }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .contact-info-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--spacing-base); }
  h1 { font-size: 36px; letter-spacing: -0.72px; }
  .hero-image-wrap img { height: 240px; }
  .articles-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .article-header h1 { font-size: 32px; letter-spacing: -0.5px; }
  .article-hero-image { height: 240px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--spacing-sm); align-items: flex-start; }
  .footer-links { flex-wrap: wrap; }
  .cookie-banner { flex-direction: column; align-items: flex-start; gap: var(--spacing-base); }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.nav-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--spacing-base) var(--spacing-xl);
    gap: var(--spacing-base);
    z-index: 99;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; letter-spacing: -0.5px; }
  section { padding: 48px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .article-header { padding: 48px 0 var(--spacing-xl); }
}