@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;
  --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;
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;
}

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

body {
  background: var(--canvas);
  color: var(--body);
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  -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: 1200px; margin: 0 auto; padding: 0 24px; }

.site-nav {
  background: 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: 64px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  text-decoration: none;
}

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

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

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

.nav-links a:hover { 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 0.2s;
}

.nav-mobile {
  display: none;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 24px 20px;
}

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

.nav-mobile ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }

.nav-mobile a {
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
}

.hero-band {
  padding: 80px 0;
  background: var(--canvas);
}

.hero-band .badge-pill {
  display: inline-flex;
  align-items: center;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  padding: 4px 12px;
  margin-bottom: 24px;
}

.hero-band h1 {
  font-size: 72px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -2.16px;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 24px;
}

.hero-band .hero-sub {
  font-size: 16px;
  color: var(--body);
  max-width: 520px;
  line-height: 1.5;
  margin-bottom: 40px;
}

.hero-image-wrap {
  margin-top: 48px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-card);
}

.hero-image-wrap img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.section { padding: 80px 0; }

.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: 36px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--body);
  max-width: 580px;
  line-height: 1.5;
  margin-bottom: 48px;
}

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

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

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

.article-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

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

.article-card-excerpt {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  flex: 1;
}

.article-card-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 1px;
}

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

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
}

.feature-card-icon {
  width: 40px;
  height: 40px;
  background: var(--surface-strong);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 18px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}

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

.article-hero {
  padding: 64px 0 48px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

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

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

.article-hero h1 {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -1.2px;
  color: var(--ink);
  max-width: 800px;
  margin-bottom: 20px;
}

.article-hero .article-intro {
  font-size: 18px;
  color: var(--body);
  max-width: 640px;
  line-height: 1.6;
}

.article-image-hero {
  margin-top: 40px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

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

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

.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 0 80px;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  line-height: 1.25;
  margin: 40px 0 16px;
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin: 28px 0 12px;
}

.article-body p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 20px;
}

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

.article-body li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 6px;
}

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

.info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--ink);
  border-radius: var(--r-sm);
  padding: 20px 24px;
  margin: 28px 0;
}

.info-box p { margin-bottom: 0; }

.tip-box {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  margin: 28px 0;
}

.tip-box .tip-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.tip-box p { margin-bottom: 0; }

.related-section {
  border-top: 1px solid var(--hairline);
  padding-top: 48px;
  margin-top: 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 48px;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 400;
  letter-spacing: -1.2px;
  color: var(--ink);
  line-height: 1.15;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 16px;
  color: var(--body);
  max-width: 560px;
  line-height: 1.5;
}

.page-content { max-width: 760px; padding-bottom: 80px; }

.page-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  line-height: 1.25;
  margin: 40px 0 16px;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin: 24px 0 10px;
}

.page-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 18px;
}

.page-content ul, .page-content ol {
  margin: 0 0 18px 20px;
}

.page-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 6px;
}

.contact-form-wrap {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 32px;
  margin-top: 40px;
}

.contact-form-wrap h2 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.11px;
  color: var(--ink);
  margin-bottom: 6px;
}

.contact-form-wrap .form-subtitle {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 28px;
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  padding: 12px 16px;
  font-size: 16px;
  color: var(--ink);
  font-family: inherit;
  line-height: 1.4;
  transition: border-color 0.15s;
  height: 44px;
}

.form-group textarea { height: auto; min-height: 100px; resize: vertical; }

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--ink);
}

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

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
  font-family: inherit;
}

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

.form-notice {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: 14px;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  color: var(--ink);
}

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

.cta-band {
  padding: 96px 0;
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  text-align: center;
}

.cta-band h2 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-band p {
  font-size: 16px;
  color: var(--body);
  margin-bottom: 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;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo { font-size: 18px; font-weight: 600; display: block; margin-bottom: 12px; }

.footer-brand p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  font-size: 14px;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

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

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

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

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

.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 560px;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-lg);
  padding: 20px 24px;
  box-shadow: none;
  z-index: 999;
  display: none;
}

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

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

.cookie-banner p a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }

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

.btn-cookie-accept {
  background: var(--ink);
  color: var(--canvas);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  height: 36px;
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.15s;
}

.btn-cookie-reject {
  background: transparent;
  color: var(--body);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  height: 36px;
  border-radius: var(--r-md);
  border: 1px solid var(--hairline-strong);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s;
}

.btn-cookie-accept:hover { opacity: 0.85; }
.btn-cookie-reject:hover { border-color: var(--ink); }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  font-size: 13px;
  color: var(--muted-soft);
}

.breadcrumb-current {
  font-size: 13px;
  color: var(--body);
}

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

.article-secondary-img {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  margin: 32px 0;
}

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

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

@media (max-width: 768px) {
  .hero-band h1 { font-size: 40px; letter-spacing: -1px; }
  .article-hero h1 { font-size: 32px; letter-spacing: -0.5px; }
  .page-hero h1 { font-size: 36px; }
  .section-title { font-size: 28px; }
  .cta-band h2 { font-size: 28px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .two-col { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .hero-band h1 { font-size: 32px; letter-spacing: -0.5px; }
  .hero-image-wrap img { height: 240px; }
  .article-image-hero img { height: 240px; }
  .articles-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .cookie-banner { left: 12px; right: 12px; bottom: 12px; }
  .section { padding: 56px 0; }
  .hero-band { padding: 56px 0; }
}