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

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

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; }
ul { list-style: none; }

.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-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.nav-brand {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.nav-brand-tld { color: var(--primary); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: var(--rounded-md);
  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;
  border-radius: var(--rounded-md);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

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

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

.hero-label {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--rounded-pill);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 72px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -2.16px;
  color: var(--ink);
  max-width: 900px;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.5;
  margin-bottom: 48px;
}

.hero-image {
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

/* SECTION */
.section { padding: 80px 0; }
.section + .section { border-top: 1px solid var(--hairline); }

.section-label {
  display: inline-block;
  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;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--body);
  max-width: 640px;
  line-height: 1.5;
  margin-bottom: 48px;
}

/* CARDS GRID */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

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

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

.card-body { padding: 24px; }

.card-tag {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--rounded-pill);
  margin-bottom: 12px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 8px;
}

.card-title a { color: var(--ink); }
.card-title a:hover { color: var(--primary); }

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

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

/* ARTICLE */
.article-header { padding: 80px 0 48px; border-bottom: 1px solid var(--hairline); }
.article-header .container { max-width: 800px; }

.article-category {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--rounded-pill);
  margin-bottom: 20px;
}

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

.article-meta {
  font-size: 14px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.article-image-block {
  padding: 48px 0;
  border-bottom: 1px solid var(--hairline);
}

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

.article-image-block img {
  width: 100%;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
  max-height: 420px;
  object-fit: cover;
}

.article-image-caption {
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
}

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

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

.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  line-height: 1.25;
  margin: 48px 0 16px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
  margin: 32px 0 12px;
}

.article-content p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin: 0 0 20px 24px;
  list-style: disc;
}

.article-content ol { list-style: decimal; }

.article-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 8px;
}

.article-content a { color: var(--primary); }
.article-content a:hover { text-decoration: underline; }

.article-content blockquote {
  border-left: 3px solid var(--hairline-strong);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--canvas-soft);
  border-radius: 0 var(--rounded-md) var(--rounded-md) 0;
}

.article-content blockquote p {
  font-size: 18px;
  color: var(--ink);
  font-style: italic;
  margin: 0;
}

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

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

.info-box ul { margin-left: 20px; list-style: disc; }
.info-box li { font-size: 14px; color: var(--body); margin-bottom: 6px; }

/* PAGE HEADER */
.page-header {
  padding: 80px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.page-header h1 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 18px;
  color: var(--body);
  max-width: 600px;
}

.page-body { padding: 48px 0 80px; }
.page-body .container { max-width: 800px; }

.page-content h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 40px 0 12px;
}

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

.page-content ul {
  margin: 0 0 16px 24px;
  list-style: disc;
}

.page-content li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 8px;
}

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

/* CONTACT FORM */
.contact-section { padding: 80px 0; border-top: 1px solid var(--hairline); }
.contact-section .container { max-width: 640px; }

.form-title {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin-bottom: 8px;
}

.form-sub {
  font-size: 16px;
  color: var(--body);
  margin-bottom: 32px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--rounded-md);
  padding: 12px 16px;
  font-size: 16px;
  color: var(--ink);
  font-family: inherit;
  height: 44px;
  outline: none;
  transition: border-color 0.15s;
}

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

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

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

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

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

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

.btn-secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--rounded-md);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  height: 40px;
  display: inline-flex;
  align-items: center;
  transition: border-color 0.15s, background 0.15s;
}

.btn-secondary:hover { background: var(--surface-strong); border-color: var(--ink); }

.form-submit { margin-top: 8px; }

.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--rounded-md);
  font-size: 14px;
  display: none;
}

.form-status.success {
  background: #e6f4ef;
  color: var(--semantic-success);
  border: 1px solid #b3ddd0;
  display: block;
}

.form-status.loading {
  background: var(--canvas-soft);
  color: var(--muted);
  border: 1px solid var(--hairline);
  display: block;
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  z-index: 200;
  padding: 16px 24px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.visible { transform: translateY(0); }

.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-inner p { font-size: 14px; color: var(--canvas); }
.cookie-inner a { color: var(--primary); text-decoration: underline; }

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

.cookie-actions .btn-primary { background: var(--primary); }
.cookie-actions .btn-secondary {
  background: transparent;
  color: var(--canvas);
  border-color: rgba(255,255,255,0.3);
}
.cookie-actions .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

/* BREADCRUMB */
.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb li + li::before { content: '/'; color: var(--hairline-strong); }

/* FEATURES STRIP */
.features-strip {
  padding: 48px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-card);
}

.features-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-item-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

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

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--hairline);
}

.footer-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand span { color: var(--primary); }

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

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

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); }
.footer-col p { font-size: 14px; color: var(--body); margin-bottom: 6px; }

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-disclaimer { font-size: 12px; color: var(--muted-soft); }

/* SCHEMA ARTICLE NAV */
.article-nav {
  padding: 48px 0;
  border-top: 1px solid var(--hairline);
}

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

.article-nav-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

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

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

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

.article-nav-card-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.article-nav-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 56px; letter-spacing: -1.5px; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .features-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    padding: 12px 0;
    gap: 0;
  }
  .nav-menu.open { display: flex; }
  .nav-link { padding: 12px 24px; border-radius: 0; width: 100%; }
  .nav-toggle { display: flex; }
  .hero h1 { font-size: 40px; letter-spacing: -1px; }
  .section-title { font-size: 28px; }
  .article-title { font-size: 28px; }
  .article-nav-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .hero { padding: 48px 0; }
  .hero h1 { font-size: 32px; letter-spacing: -0.5px; }
  .section { padding: 48px 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .features-strip-grid { grid-template-columns: 1fr; }
  .cookie-inner { flex-direction: column; align-items: flex-start; }
}