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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --semantic-success: #1f8a65;
  --semantic-error: #cf2d56;
  --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--canvas);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

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;
}

/* NAV */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.11px;
  white-space: nowrap;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  padding: 8px 12px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--ink); background: var(--surface-strong); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}

/* HERO */
.hero {
  padding: 80px 0 64px;
  background: var(--canvas);
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 4px 10px;
  border-radius: 9999px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 56px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-meta {
  font-size: 13px;
  color: var(--muted);
}
.hero-image {
  border-radius: 12px;
  border: 1px solid var(--hairline);
  overflow: hidden;
  background: var(--surface-card);
}
.hero-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

/* SECTIONS */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--canvas-soft);
}
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.section-title {
  font-size: 36px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.5;
  margin-bottom: 48px;
}

/* ARTICLE CARDS */
.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: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--hairline-strong); }
.article-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.article-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 3px 9px;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 12px;
  width: fit-content;
}
.article-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
  margin-bottom: 10px;
}
.article-card-excerpt {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 20px;
}
.article-card-date {
  font-size: 13px;
  color: var(--muted);
}
.article-card-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 12px;
}
.article-card-link:hover { color: var(--primary-active); }

/* ARTICLE PAGE */
.article-page {
  padding: 64px 0 80px;
}
.article-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-page-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  padding: 4px 10px;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 20px;
}
.article-page-title {
  font-size: 40px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 16px;
}
.article-page-meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.article-page-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  margin-bottom: 40px;
  max-height: 440px;
  object-fit: cover;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 40px 0 16px;
  line-height: 1.25;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 12px;
  line-height: 1.3;
}
.article-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 20px;
}
.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: 20px;
}
.article-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 6px;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content strong { color: var(--ink); font-weight: 600; }
.article-content blockquote {
  border-left: 3px solid var(--hairline-strong);
  padding-left: 20px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--ink);
}

/* BREADCRUMB */
.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
  margin-bottom: 0;
}
.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.breadcrumb-item {
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb-sep { color: var(--hairline-strong); }
.breadcrumb-current { color: var(--ink); }

/* RELATED ARTICLES */
.related-section {
  border-top: 1px solid var(--hairline);
  padding: 48px 0 0;
  margin-top: 64px;
}
.related-title {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.11px;
  color: var(--ink);
  margin-bottom: 28px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.related-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
}
.related-card-date { font-size: 13px; color: var(--muted); }

/* CONTACT FORM */
.contact-section { padding: 80px 0; }
.contact-inner {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 24px;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}
.form-input, .form-textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 16px;
  color: var(--ink);
  font-family: var(--font-sans);
  height: 44px;
  transition: border-color 0.15s;
}
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--ink);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--muted-soft); }
.form-textarea { height: auto; min-height: 120px; resize: vertical; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  font-family: var(--font-sans);
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.form-success {
  display: none;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--semantic-success);
  border-radius: 8px;
  padding: 16px 20px;
  font-size: 15px;
  color: var(--semantic-success);
  margin-top: 16px;
}
.form-success.visible { display: block; }

/* INFO BOXES */
.info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  margin: 28px 0;
}
.info-box-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

/* PAGE CONTENT */
.page-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}
.page-title {
  font-size: 40px;
  font-weight: 400;
  letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 8px;
}
.page-updated {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 40px;
}
.page-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 40px 0 14px;
}
.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 24px 0 10px;
}
.page-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 16px;
}
.page-content ul, .page-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}
.page-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 6px;
}
.page-content a { color: var(--primary); text-decoration: underline; }

/* COOKIE BANNER */
#cookieBanner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 20px 24px;
  z-index: 1000;
  display: none;
}
#cookieBanner.visible { display: block; }
.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.cookie-text {
  font-size: 14px;
  color: var(--canvas);
  line-height: 1.5;
  flex: 1;
  min-width: 240px;
}
.cookie-text a { color: var(--canvas); text-decoration: underline; }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }
.cookie-btn {
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
  transition: background 0.15s;
}
.cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
}
.cookie-accept:hover { background: var(--primary-active); }
.cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(247,247,244,0.3);
}
.cookie-reject:hover { background: rgba(247,247,244,0.1); }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
}
.footer-heading {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  font-size: 14px;
  color: var(--body);
}
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-bottom a { color: var(--muted); text-decoration: underline; }
.footer-disclaimer { font-size: 12px; color: var(--muted-soft); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 44px; }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-container { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 12px 24px 20px;
    gap: 2px;
  }
  .nav-menu.open { display: flex; }
  .site-nav { position: relative; }
  .hero-title { font-size: 34px; }
  .section-title { font-size: 28px; }
  .articles-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr 1fr; gap: 32px; }
  .article-page-title { font-size: 30px; }
  .page-title { font-size: 30px; }
}
@media (max-width: 480px) {
  .hero { padding: 48px 0 40px; }
  .hero-title { font-size: 28px; }
  .footer-container { grid-template-columns: 1fr; }
  .cookie-inner { flex-direction: column; align-items: flex-start; }
}