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

:root {
  --canvas: #f7f7f4;
  --ink: #26251e;
  --body-color: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --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;
}

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

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

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--canvas);
  color: var(--body-color);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.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;
}

.nav-logo {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: all 0.2s;
}

.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: 20px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 820px;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 18px;
  color: var(--body-color);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 0;
}

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

.hero-image-wrap img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

h1 { font-size: clamp(28px, 4vw, 48px); font-weight: 400; line-height: 1.15; letter-spacing: -0.02em; color: var(--ink); }
h2 { font-size: clamp(20px, 3vw, 30px); font-weight: 400; line-height: 1.2; letter-spacing: -0.01em; color: var(--ink); }
h3 { font-size: 19px; font-weight: 500; line-height: 1.35; color: var(--ink); }
h4 { font-size: 15px; font-weight: 600; line-height: 1.4; color: var(--ink); }
p { color: var(--body-color); line-height: 1.6; }

section { padding: 80px 0; }

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

.section-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--body-color);
  max-width: 540px;
  margin-bottom: 48px;
  line-height: 1.6;
}

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

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

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

.card-image {
  width: 100%;
  height: 196px;
  object-fit: cover;
  display: block;
}

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

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

.card h3 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.35;
}

.card p {
  font-size: 14px;
  color: var(--body-color);
  line-height: 1.55;
}

.card-date {
  font-size: 13px;
  color: var(--muted);
  margin-top: 14px;
  display: block;
}

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

.breadcrumb { padding: 16px 0; }

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

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

.breadcrumb li + li::before {
  content: '/';
  margin-right: 8px;
  color: var(--hairline-strong);
}

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

.article-header {
  padding: 56px 0 40px;
  max-width: 760px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

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

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

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

.article-header h1 {
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 16px;
}

.article-intro {
  font-size: 18px;
  color: var(--body-color);
  line-height: 1.65;
  max-width: 680px;
}

.article-featured-img {
  width: 100%;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  display: block;
  margin-bottom: 8px;
  max-height: 420px;
  object-fit: cover;
}

.img-caption {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 40px;
}

.article-body {
  max-width: 720px;
  padding-bottom: 80px;
}

.article-body h2 {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 44px 0 16px;
  color: var(--ink);
}

.article-body h3 {
  font-size: 19px;
  font-weight: 500;
  margin: 32px 0 12px;
  color: var(--ink);
}

.article-body p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--body-color);
  margin-bottom: 20px;
}

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

.article-body li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--body-color);
  margin-bottom: 6px;
}

.article-body a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-body img {
  width: 100%;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  margin: 32px 0 8px;
  display: block;
}

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

.note-box p { font-size: 15px; margin: 0; }

.related-section {
  border-top: 1px solid var(--hairline);
  padding: 48px 0 80px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.form-section { max-width: 560px; }

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

.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(--error); }

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

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--r-md);
  padding: 10px 20px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
}

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

.form-success {
  display: none;
  padding: 16px 20px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--success);
  border-radius: var(--r-md);
  font-size: 15px;
  color: var(--success);
}

.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--canvas);
  padding: 16px 24px;
  border-radius: var(--r-lg);
  display: none;
  align-items: center;
  gap: 20px;
  max-width: 660px;
  width: calc(100% - 48px);
  z-index: 1000;
}

.cookie-banner p {
  color: var(--canvas);
  font-size: 14px;
  line-height: 1.5;
  flex: 1;
  margin: 0;
}

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

.cookie-buttons {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

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

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

.btn-cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--r-md);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

.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 .nav-logo { font-size: 16px; display: inline-block; margin-bottom: 10px; }

.footer-brand p {
  font-size: 14px;
  color: var(--body-color);
  line-height: 1.6;
  max-width: 240px;
}

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

.footer-col ul { list-style: none; }

.footer-col ul li { margin-bottom: 9px; }

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

.footer-col ul li 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;
  gap: 16px;
  flex-wrap: wrap;
}

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

.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
  max-width: 720px;
}

.page-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 17px;
  line-height: 1.65;
  color: var(--body-color);
}

.page-content {
  max-width: 720px;
  padding: 48px 0 80px;
}

.page-content h2 {
  font-size: 21px;
  font-weight: 500;
  margin: 36px 0 12px;
  color: var(--ink);
}

.page-content p {
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 16px;
}

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

.page-content li {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 6px;
}

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

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 64px 0 80px;
  border-bottom: 1px solid var(--hairline);
}

.about-grid-text h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.about-grid-text p {
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 14px;
}

.about-grid-img img {
  width: 100%;
  border-radius: var(--r-lg);
  border: 1px solid var(--hairline);
  display: block;
}

.contact-section {
  padding: 64px 0 80px;
}

.contact-section h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.contact-section > p {
  font-size: 16px;
  margin-bottom: 32px;
  max-width: 480px;
}

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

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
    gap: 16px;
  }
  .articles-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
  section { padding: 60px 0; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero-image-wrap img { height: 220px; }
}