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

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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --success: #1f8a65;
  --error: #cf2d56;
  --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--body);
  background-color: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

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

.nav-logo {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  padding: 6px 12px;
  border-radius: var(--radius-md);
  transition: color 0.15s, background-color 0.15s;
}

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

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--ink);
}

.nav-hamburger svg {
  display: block;
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background-color: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 12px 24px;
}

.nav-mobile.open {
  display: block;
}

.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-mobile ul a {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
  padding: 10px 12px;
  border-radius: var(--radius-md);
}

.nav-mobile ul a:hover {
  color: var(--ink);
  background-color: var(--surface-strong);
}

.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--hairline);
}

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

.hero h1 {
  font-size: 52px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  max-width: 720px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.5;
  color: var(--body);
  max-width: 560px;
  margin-bottom: 0;
}

.section {
  padding: 64px 0;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
}

.section-title {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  max-width: 600px;
  margin-bottom: 40px;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.15s;
}

.article-card:hover {
  border-color: var(--hairline-strong);
}

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

.article-card-body {
  padding: 20px 24px 24px;
}

.article-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
}

.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 10px;
}

.article-card p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--body);
  margin-bottom: 16px;
}

.article-card-meta {
  font-size: 13px;
  color: var(--muted);
}

.article-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 1px;
  transition: border-color 0.15s, color 0.15s;
}

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

.article-page {
  padding: 48px 0 80px;
}

.article-page .container {
  max-width: 800px;
}

.article-header {
  margin-bottom: 40px;
}

.article-header .article-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.article-header h1 {
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.8px;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 16px;
}

.article-header .article-intro {
  font-size: 18px;
  line-height: 1.6;
  color: var(--body);
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  padding-top: 16px;
  border-top: 1px solid var(--hairline);
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-featured-img {
  width: 100%;
  max-height: 460px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
  border: 1px solid var(--hairline);
}

.article-img-caption {
  font-size: 13px;
  color: var(--muted);
  margin-top: -32px;
  margin-bottom: 40px;
  text-align: center;
}

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

.article-body h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.3px;
  color: var(--ink);
  line-height: 1.25;
  margin-top: 48px;
  margin-bottom: 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
  margin-top: 32px;
  margin-bottom: 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(245, 78, 0, 0.3);
  transition: border-color 0.15s;
}

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

.article-body blockquote {
  border-left: 3px solid var(--primary);
  padding: 12px 0 12px 20px;
  margin: 28px 0;
  color: var(--ink);
  font-size: 17px;
  font-style: italic;
  line-height: 1.6;
}

.article-body .info-box {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 32px 0;
}

.article-body .info-box h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-related {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--hairline);
}

.article-related h2 {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 24px;
  letter-spacing: -0.2px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.related-card {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color 0.15s;
}

.related-card:hover {
  border-color: var(--hairline-strong);
}

.related-card .tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: 8px;
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

.page-content {
  padding: 48px 0 80px;
}

.page-content .container {
  max-width: 760px;
}

.page-content h1 {
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.8px;
  color: var(--ink);
  margin-bottom: 12px;
}

.page-content .page-intro {
  font-size: 17px;
  color: var(--body);
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
}

.page-content h2 {
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -0.3px;
  color: var(--ink);
  margin-top: 40px;
  margin-bottom: 14px;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-top: 28px;
  margin-bottom: 10px;
}

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

.page-content ul,
.page-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.page-content li {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  margin-bottom: 6px;
}

.page-content .updated-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}

.contact-form-wrap {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 48px;
}

.contact-form-wrap h2 {
  font-size: 24px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 8px;
  margin-top: 0;
  letter-spacing: -0.3px;
}

.contact-form-wrap p {
  color: var(--muted);
  margin-bottom: 24px;
}

.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-color: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
}

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

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

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

.btn-submit {
  background-color: var(--ink);
  color: var(--canvas);
  border: none;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-submit:hover {
  background-color: #3a3930;
}

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

.form-success {
  display: none;
  background-color: rgba(31, 138, 101, 0.08);
  border: 1px solid rgba(31, 138, 101, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--success);
  margin-top: 16px;
}

.form-success.visible {
  display: block;
}

.site-footer {
  background-color: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--body);
  margin-top: 10px;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--body);
  transition: color 0.15s;
}

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

.footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.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 0.15s;
}

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

.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 520px;
  background-color: var(--ink);
  color: var(--canvas);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: none;
  z-index: 999;
  box-shadow: 0 4px 24px rgba(38, 37, 30, 0.12);
}

.cookie-banner.visible {
  display: block;
}

.cookie-banner p {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(247, 247, 244, 0.8);
  margin-bottom: 16px;
}

.cookie-banner p a {
  color: var(--canvas);
  border-bottom: 1px solid rgba(247, 247, 244, 0.4);
  transition: border-color 0.15s;
}

.cookie-banner p a:hover {
  border-color: var(--canvas);
}

.cookie-buttons {
  display: flex;
  gap: 10px;
}

.btn-cookie-accept {
  background-color: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--radius-md);
  padding: 9px 18px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s;
}

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

.btn-cookie-reject {
  background-color: transparent;
  color: rgba(247, 247, 244, 0.7);
  border: 1px solid rgba(247, 247, 244, 0.25);
  border-radius: var(--radius-md);
  padding: 9px 18px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.btn-cookie-reject:hover {
  color: var(--canvas);
  border-color: rgba(247, 247, 244, 0.5);
}

.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 0;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb ol li {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb ol li a {
  color: var(--muted);
  transition: color 0.15s;
}

.breadcrumb ol li a:hover {
  color: var(--body);
}

.breadcrumb ol li::after {
  content: '/';
  color: var(--hairline-strong);
}

.breadcrumb ol li:last-child::after {
  display: none;
}

.breadcrumb ol li:last-child {
  color: var(--body);
}

.page-header-band {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--hairline);
}

.page-header-band h1 {
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -0.8px;
  color: var(--ink);
  margin-bottom: 10px;
}

.page-header-band p {
  font-size: 17px;
  color: var(--body);
  max-width: 560px;
}

@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-hamburger {
    display: flex;
  }
  .hero h1 {
    font-size: 36px;
    letter-spacing: -0.8px;
  }
  .section-title {
    font-size: 28px;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .article-header h1 {
    font-size: 28px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-content h1 {
    font-size: 30px;
  }
  .page-header-band h1 {
    font-size: 30px;
  }
  .cookie-banner {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  .hero {
    padding: 48px 0 40px;
  }
  .section {
    padding: 48px 0;
  }
  .article-page {
    padding: 32px 0 56px;
  }
}