@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;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --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-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;
}

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;
}

/* ===== TOP NAV ===== */
.top-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-wordmark {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

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

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

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

.mobile-menu {
  display: none;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 16px 0;
}

.mobile-menu.open { display: block; }

.mobile-menu ul {
  list-style: none;
  padding: 0 24px;
}

.mobile-menu li { border-bottom: 1px solid var(--hairline-soft); }

.mobile-menu a {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}

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

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-label {
  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: var(--rounded-pill);
  padding: 4px 10px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: -1.3px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-img {
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-card);
}

.hero-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

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

.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;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.72px;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--body);
  line-height: 1.5;
  max-width: 600px;
}

.section-header { margin-bottom: 48px; }

/* ===== ARTICLE GRID ===== */
.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: var(--rounded-lg);
  overflow: hidden;
  transition: border-color 0.15s;
}

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

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

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

.article-card-tag {
  display: inline-flex;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--rounded-pill);
  padding: 4px 10px;
  margin-bottom: 12px;
}

.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 10px;
}

.article-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  margin-bottom: 20px;
}

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

.article-card-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted-soft);
  display: inline-block;
}

/* ===== FEATURES / INFO BLOCKS ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 24px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--surface-strong);
  border-radius: var(--rounded-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

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

/* ===== SPLIT SECTION ===== */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.split-section.reverse { direction: rtl; }
.split-section.reverse > * { direction: ltr; }

.split-img {
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.split-img img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.split-content h2 {
  font-size: 32px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.split-content p {
  font-size: 15px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 12px;
}

.split-content .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 8px;
}

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

/* ===== ARTICLE PAGE ===== */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 64px;
  padding: 64px 0;
}

.article-main {}

.article-hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--rounded-lg);
  border: 1px solid var(--hairline);
  margin-bottom: 40px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.article-meta .tag {
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  border-radius: var(--rounded-pill);
  padding: 4px 10px;
}

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

.article-main h1 {
  font-size: 42px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.84px;
  margin-bottom: 20px;
}

.article-intro {
  font-size: 18px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 40px;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.25;
  letter-spacing: -0.325px;
  margin: 40px 0 16px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 12px;
}

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

.article-body ul, .article-body ol {
  margin: 0 0 20px 24px;
}

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

.article-body .note-block {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: var(--rounded-md);
  padding: 16px 20px;
  margin: 24px 0;
}

.article-body .note-block p {
  font-size: 14px;
  color: var(--body-strong);
  margin: 0;
}

.article-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-xs);
  padding: 2px 6px;
  color: var(--ink);
}

.article-body .img-block {
  margin: 32px 0;
  border-radius: var(--rounded-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.article-body .img-block img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.article-body .img-caption {
  font-size: 13px;
  color: var(--muted);
  padding: 10px 16px;
  background: var(--canvas-soft);
  border-top: 1px solid var(--hairline);
}

.article-sidebar {}

.sidebar-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}

.sidebar-links { list-style: none; }

.sidebar-links li {
  border-bottom: 1px solid var(--hairline-soft);
}

.sidebar-links li:last-child { border-bottom: none; }

.sidebar-links a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--body);
  line-height: 1.4;
  transition: color 0.15s;
}

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

/* ===== CONTACT FORM ===== */
.contact-section { padding: 80px 0; }

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

.contact-info h2 {
  font-size: 32px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.contact-info p {
  font-size: 15px;
  color: var(--body);
  line-height: 1.6;
  margin-bottom: 24px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.contact-detail-icon {
  width: 36px;
  height: 36px;
  background: var(--surface-strong);
  border-radius: var(--rounded-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.contact-detail-text { font-size: 14px; color: var(--body); }
.contact-detail-label { font-size: 12px; color: var(--muted); margin-bottom: 2px; }

.form-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 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(--canvas-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--rounded-md);
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  height: 44px;
  transition: border-color 0.15s;
  outline: none;
}

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

.form-group .field-error.visible { display: block; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 18px;
  height: 40px;
  border-radius: var(--rounded-md);
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  width: 100%;
}

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

.form-success {
  display: none;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--semantic-success);
  border-radius: var(--rounded-md);
  padding: 16px 20px;
  text-align: center;
  margin-top: 16px;
}

.form-success.visible { display: block; }

.form-success p {
  font-size: 15px;
  color: var(--semantic-success);
  font-weight: 500;
}

/* ===== PAGES (about, privacy, terms) ===== */
.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

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

.page-hero h1 {
  font-size: 42px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.84px;
  line-height: 1.15;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 600px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 64px;
  padding: 64px 0;
}

.page-content h2 {
  font-size: 24px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.325px;
  margin: 36px 0 12px;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 24px 0 10px;
}

.page-content p {
  font-size: 15px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 16px;
}

.page-content ul, .page-content ol {
  margin: 0 0 20px 24px;
}

.page-content li {
  font-size: 15px;
  color: var(--body);
  line-height: 1.7;
  margin-bottom: 6px;
}

.page-nav { position: sticky; top: 80px; }

.page-nav-list { list-style: none; }

.page-nav-list li { margin-bottom: 4px; }

.page-nav-list a {
  display: block;
  font-size: 14px;
  color: var(--muted);
  padding: 6px 0;
  transition: color 0.15s;
  border-left: 2px solid transparent;
  padding-left: 12px;
}

.page-nav-list a:hover { color: var(--ink); }
.page-nav-list a.active { color: var(--ink); border-left-color: var(--primary); }

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

.breadcrumb ol {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb a { color: var(--body); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { color: var(--muted-soft); }
.breadcrumb .current { color: var(--ink); }

/* ===== FOOTER ===== */
.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 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  margin-top: 12px;
  max-width: 280px;
}

.footer-col h5 {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

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

.footer-col li { margin-bottom: 8px; }

.footer-col a {
  font-size: 14px;
  color: var(--body);
  transition: color 0.15s;
}

.footer-col 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;
  flex-wrap: wrap;
  gap: 12px;
}

.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);
}

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

/* ===== COOKIE BANNER ===== */
#cookie-banner {
  display: none;
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  width: calc(100% - 48px);
  max-width: 640px;
  background: var(--ink);
  color: var(--canvas);
  border-radius: var(--rounded-lg);
  padding: 20px 24px;
  box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}

#cookie-banner.visible { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }

#cookie-banner p {
  font-size: 14px;
  color: var(--canvas-soft);
  line-height: 1.5;
  flex: 1;
  min-width: 200px;
}

#cookie-banner p a { color: var(--canvas); text-decoration: underline; text-underline-offset: 2px; }

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

.cookie-btn-accept {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--rounded-md);
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  height: 36px;
  white-space: nowrap;
  transition: background 0.15s;
}

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

.cookie-btn-reject {
  background: transparent;
  color: var(--muted-soft);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--rounded-md);
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  height: 36px;
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}

.cookie-btn-reject:hover { color: var(--canvas); border-color: rgba(255,255,255,0.4); }

/* ===== DISCLAIMER ===== */
.disclaimer {
  font-size: 13px;
  color: var(--muted);
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-md);
  padding: 12px 16px;
  line-height: 1.5;
  margin: 24px 0 0;
}

/* ===== PAGINATION / MISC ===== */
.updated-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}

/* ===== ABOUT PAGE ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.team-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--rounded-lg);
  padding: 24px;
  text-align: center;
}

.team-avatar {
  width: 64px;
  height: 64px;
  background: var(--surface-strong);
  border-radius: var(--rounded-pill);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.team-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.team-card p { font-size: 14px; color: var(--muted); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-grid > .footer-brand { grid-column: 1 / -1; }
  .hero h1 { font-size: 40px; }
  .section-title { font-size: 30px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: 48px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 32px; letter-spacing: -0.8px; }
  .hero-img img { height: 240px; }

  .articles-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .split-section { grid-template-columns: 1fr; gap: 32px; }
  .split-section.reverse { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }

  .article-layout { grid-template-columns: 1fr; gap: 40px; }
  .article-sidebar { order: -1; }
  .article-main h1 { font-size: 32px; }
  .article-hero-img { height: 240px; }

  .page-layout { grid-template-columns: 1fr; gap: 40px; }
  .page-nav { display: none; }
  .page-hero h1 { font-size: 32px; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > .footer-brand { grid-column: 1 / -1; }

  .section { padding: 48px 0; }
}

@media (max-width: 640px) {
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .section-title { font-size: 26px; }
  #cookie-banner.visible { flex-direction: column; }
  .cookie-actions { width: 100%; }
  .cookie-btn-accept, .cookie-btn-reject { flex: 1; }
}