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

:root {
  --canvas: #f7f7f4;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --ink: #26251e;
  --body: #5a5852;
  --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;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--canvas);
  color: var(--body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--ink);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

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

.container--narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* NAV */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-nav__logo {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1;
}

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

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
}

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

.site-nav__links a.active {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 32px;
  height: 32px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* 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;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

.hero__title {
  font-size: 56px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 20px;
}

.hero__desc {
  font-size: 18px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--body);
  max-width: 560px;
  margin-bottom: 0;
}

/* SECTION TITLES */
.section {
  padding: 80px 0;
}

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

.section__header {
  margin-bottom: 48px;
}

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

.section__title {
  font-size: 36px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
}

.section__subtitle {
  font-size: 16px;
  color: var(--body);
  margin-top: 12px;
  max-width: 560px;
}

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

.articles-grid--two {
  grid-template-columns: repeat(2, 1fr);
}

.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 ease;
}

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

.article-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--surface-strong);
}

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

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

.article-card__title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 12px;
}

.article-card__excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--body);
  flex: 1;
  margin-bottom: 20px;
}

.article-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-top: auto;
}

.article-card__meta span::before {
  content: '·';
  margin-right: 8px;
}

.article-card__meta span:first-child::before {
  content: none;
}

/* FEATURED ARTICLE */
.featured-article {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.featured-article__image {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  background: var(--surface-strong);
}

.featured-article__body {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-article__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.featured-article__title {
  font-size: 26px;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin-bottom: 16px;
}

.featured-article__excerpt {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  margin-bottom: 28px;
}

.featured-article__meta {
  font-size: 13px;
  color: var(--muted);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
  border-radius: 8px;
  padding: 10px 18px;
  height: 40px;
  white-space: nowrap;
}

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

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

.btn--secondary {
  background: var(--surface-card);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
}

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

.btn--ink {
  background: var(--ink);
  color: var(--canvas);
  padding: 12px 20px;
  height: 44px;
}

.btn--ink:hover {
  background: #3a3931;
  color: var(--canvas);
}

/* READ MORE LINK */
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}

.read-more::after {
  content: '→';
  font-size: 16px;
}

.read-more:hover {
  color: var(--primary);
}

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

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

.article-header__title {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.2px;
  color: var(--ink);
  max-width: 760px;
  margin-bottom: 20px;
}

.article-header__meta {
  font-size: 14px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  align-items: center;
}

.article-header__meta span + span::before {
  content: '·';
  margin-right: 16px;
}

.article-hero-image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: 12px;
  margin: 48px 0;
  border: 1px solid var(--hairline);
}

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

.article-content p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 20px;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  margin-top: 32px;
  margin-bottom: 16px;
}

.article-content ul, .article-content ol {
  list-style: none;
  margin-bottom: 24px;
}

.article-content ul li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 8px;
}

.article-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--muted);
}

.article-content ol {
  list-style: decimal;
  padding-left: 24px;
}

.article-content ol li {
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 2px solid var(--hairline-strong);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--surface-card);
  border-radius: 0 8px 8px 0;
}

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

.article-content figure {
  margin: 40px 0;
}

.article-content figure img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--hairline);
}

.article-content figcaption {
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.4;
}

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

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

/* INFOBOX */
.infobox {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 28px;
  margin: 32px 0;
}

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

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

.infobox__item dt {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

.infobox__item dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

/* RELATED ARTICLES */
.related-section {
  padding: 64px 0;
  border-top: 1px solid var(--hairline);
}

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

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

.page-header__subtitle {
  font-size: 18px;
  color: var(--body);
}

.page-content {
  padding: 64px 0 80px;
}

.page-content p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 24px;
}

.page-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 20px;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-top: 32px;
  margin-bottom: 12px;
}

.page-content ul {
  list-style: none;
  margin-bottom: 24px;
}

.page-content ul li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  margin-bottom: 8px;
}

.page-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--muted);
}

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

/* ABOUT GRID */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 64px;
}

.about-grid img {
  border-radius: 12px;
  border: 1px solid var(--hairline);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* CONTACT FORM */
.contact-section {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 48px;
  margin-top: 48px;
}

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

.contact-section__desc {
  font-size: 15px;
  color: var(--body);
  margin-bottom: 32px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}

.form-group input,
.form-group textarea {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease;
  height: 44px;
  width: 100%;
}

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

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

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

.form-group .field-error {
  font-size: 12px;
  color: var(--error);
  display: none;
}

.form-actions {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.form-status {
  font-size: 14px;
  display: none;
}

.form-status--success {
  color: var(--success);
}

.form-status--loading {
  color: var(--muted);
}

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand__logo {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
  display: block;
}

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

.footer-brand__desc {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  max-width: 260px;
}

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

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--body);
}

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

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  color: var(--muted);
}

.site-footer__bottom a {
  color: var(--muted);
}

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

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--canvas);
  border-radius: 12px;
  padding: 20px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
  z-index: 1000;
  max-width: 760px;
  width: calc(100% - 48px);
  box-shadow: none;
  border: 1px solid rgba(255,255,255,0.08);
}

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

.cookie-banner__text a {
  color: var(--canvas);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cookie-banner__actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

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

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

.cookie-btn-reject {
  background: transparent;
  color: var(--canvas-soft);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s ease;
}

.cookie-btn-reject:hover {
  border-color: rgba(255,255,255,0.5);
}

.cookie-banner--hidden {
  display: none;
}

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

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb__list li + li::before {
  content: '/';
  color: var(--hairline-strong);
}

.breadcrumb__list a {
  color: var(--muted);
}

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

.breadcrumb__list li:last-child {
  color: var(--ink);
}

/* DIVIDER */
.divider {
  height: 1px;
  background: var(--hairline);
  border: none;
  margin: 0;
}

/* BADGE */
.badge {
  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: 9999px;
  padding: 4px 10px;
}

/* TIMELINE STRIP */
.timeline-strip {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.timeline-strip__item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 16px 20px;
  flex: 1;
  min-width: 160px;
}

.timeline-strip__year {
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.timeline-strip__label {
  font-size: 13px;
  color: var(--body);
  line-height: 1.4;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero__title {
    font-size: 42px;
    letter-spacing: -1px;
  }

  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-article {
    grid-template-columns: 1fr;
  }

  .featured-article__image {
    min-height: 280px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .site-nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 20px;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 56px 0;
  }

  .hero__title {
    font-size: 32px;
    letter-spacing: -0.8px;
  }

  .hero__desc {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .section__title {
    font-size: 28px;
  }

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

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

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

  .featured-article__body {
    padding: 28px 24px;
  }

  .featured-article__title {
    font-size: 22px;
  }

  .article-header__title {
    font-size: 32px;
    letter-spacing: -0.8px;
  }

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

  .contact-section {
    padding: 28px 24px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    bottom: 16px;
  }

  .page-header__title {
    font-size: 32px;
  }

  .timeline-strip {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .container--narrow {
    padding: 0 16px;
  }
}