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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --primary: #f54e00;
  --primary-active: #d04200;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --success: #1f8a65;
  --error: #cf2d56;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;
  --section: 80px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: 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;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

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

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

h1 {
  font-size: 72px;
  line-height: 1.1;
  letter-spacing: -2.16px;
}

h2 {
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: -0.72px;
}

h3 {
  font-size: 26px;
  line-height: 1.25;
  letter-spacing: -0.325px;
}

h4 {
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.11px;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  display: flex;
  align-items: center;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: var(--primary);
}

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 4px 0;
  transition: all 0.2s ease;
}

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

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

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

.hero h1 {
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--body);
  margin-bottom: 32px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  text-decoration: none;
}

.badge-pill:hover {
  background: var(--hairline-strong);
  color: var(--ink);
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  aspect-ratio: 4/3;
}

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

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

.section + .section {
  border-top: 1px solid var(--hairline-soft);
}

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

.section-header h2 {
  margin-bottom: 8px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
  display: block;
}

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

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

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s ease;
}

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

.feature-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.feature-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-card-img img {
  transform: scale(1.02);
}

.feature-card-body {
  padding: 24px;
}

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

.feature-card-body h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--ink);
  font-weight: 400;
}

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

.feature-card-meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
}

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

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

.article-hero-img img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

.article-body {
  padding: var(--section) 0;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
}

.article-content h2 {
  margin-top: 48px;
  margin-bottom: 16px;
}

.article-content h3 {
  margin-top: 32px;
  margin-bottom: 12px;
}

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

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

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

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

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

.article-content img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  margin: 24px 0;
  display: block;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline-soft);
  flex-wrap: wrap;
}

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

.article-breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

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

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

.info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  margin: 24px 0;
}

.info-box p {
  margin: 0;
  font-size: 14px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 24px 0;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.data-table th {
  text-align: left;
  padding: 10px 16px;
  background: var(--canvas-soft);
  color: var(--ink);
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--hairline);
}

.data-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--hairline-soft);
  color: var(--body);
}

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

.contact-section {
  padding: var(--section) 0;
  background: var(--canvas-soft);
  border-top: 1px solid var(--hairline);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--body);
  margin-bottom: 16px;
}

.contact-detail {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-detail p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

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

.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%;
  padding: 12px 16px;
  height: 44px;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
  transition: border-color 0.15s ease;
  outline: none;
  appearance: none;
}

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

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

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

.field-error {
  font-size: 12px;
  color: var(--error);
  margin-top: 4px;
  display: none;
}

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

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

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  height: 40px;
  background: var(--surface-card);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s ease;
  text-decoration: none;
}

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

.form-success {
  display: none;
  padding: 14px 16px;
  background: #f0faf6;
  border: 1px solid #1f8a65;
  border-radius: var(--radius-md);
  color: var(--success);
  font-size: 14px;
  font-weight: 500;
  margin-top: 16px;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.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: 40px;
  margin-bottom: 48px;
}

.footer-brand .site-logo {
  font-size: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--body);
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: 0.88px;
  text-transform: uppercase;
}

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

.footer-col ul a {
  font-size: 14px;
  color: var(--body);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

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

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}

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

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--ink);
  padding: 20px 24px;
  display: none;
}

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

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

.cookie-text {
  font-size: 14px;
  color: var(--canvas);
  flex: 1;
  min-width: 200px;
  line-height: 1.5;
}

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

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

.btn-cookie-accept {
  padding: 8px 16px;
  height: 36px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease;
}

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

.btn-cookie-reject {
  padding: 8px 16px;
  height: 36px;
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(247, 247, 244, 0.3);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
}

.disclaimer {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 13px;
  color: var(--muted);
  margin: 24px 0;
  line-height: 1.5;
}

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

.page-hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
}

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

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

.prose {
  max-width: 760px;
}

.prose h2 {
  margin-top: 40px;
  margin-bottom: 16px;
}

.prose h3 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 20px;
}

.prose p {
  margin-bottom: 16px;
}

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

.prose li {
  margin-bottom: 6px;
  color: var(--body);
}

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

.divider {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 32px 0;
}

@media (max-width: 1024px) {
  h1 { font-size: 56px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: 36px; letter-spacing: -1px; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--hairline-soft);
  }

  .nav-toggle {
    display: block;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-image {
    order: -1;
  }

  .card-grid { grid-template-columns: 1fr; }
  .card-grid-2 { grid-template-columns: 1fr; }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-hero h1 { font-size: 36px; }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; }

  .cookie-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-form { padding: 24px; }
}