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

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

: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;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--body);
  background-color: var(--canvas);
  -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 ========== */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
  line-height: 1;
}

.nav-logo 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(--ink);
  line-height: 1.4;
  transition: color 0.15s ease;
}

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

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

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

.nav-mobile {
  display: none;
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 16px 24px;
}

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

.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-mobile ul a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  display: block;
  padding: 4px 0;
}

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

.hero h1 {
  font-size: 56px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  max-width: 720px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  max-width: 580px;
  margin-bottom: 32px;
}

.badge-pill {
  display: inline-block;
  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;
  margin-bottom: 20px;
}

/* ========== SECTIONS ========== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--canvas-soft);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

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

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

.section-subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  max-width: 600px;
  margin-bottom: 48px;
}

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

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

.feature-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
}

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

.feature-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--body);
}

.feature-card .card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--surface-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 18px;
}

/* ========== ARTICLE CARDS ========== */
.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.article-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
  margin-bottom: 10px;
}

.article-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--body);
  flex: 1;
  margin-bottom: 16px;
}

.article-card-meta {
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--hairline-soft);
  padding-top: 12px;
  margin-top: auto;
}

.read-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}

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

/* ========== ARTICLE PAGE ========== */
.article-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.article-header .badge-pill { margin-bottom: 20px; }

.article-header h1 {
  font-size: 42px;
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--ink);
  max-width: 780px;
  margin-bottom: 20px;
}

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

.article-hero-img {
  width: 100%;
  max-height: 460px;
  object-fit: cover;
  border-radius: 12px;
  margin: 40px 0;
  border: 1px solid var(--hairline);
}

.article-body {
  max-width: 760px;
  padding: 0 0 80px;
}

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

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

.article-body p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--body);
  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);
  margin-bottom: 8px;
}

.article-body strong { color: var(--body-strong); font-weight: 600; }

.info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  margin: 32px 0;
}

.info-box .info-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.info-box p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--body);
  margin: 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.data-table th {
  background: var(--surface-strong);
  color: var(--ink);
  font-weight: 600;
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--hairline);
}

.data-table td {
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  color: var(--body);
  background: var(--surface-card);
}

.data-table tr:nth-child(even) td { background: var(--canvas-soft); }

.article-source {
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
  margin-top: 8px;
}

.article-source a {
  color: var(--primary);
  font-style: normal;
}

/* ========== BREADCRUMB ========== */
.breadcrumb {
  padding: 16px 0;
  font-size: 13px;
  color: var(--muted);
  border-bottom: 1px solid var(--hairline-soft);
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

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

.related-section .section-title { font-size: 26px; margin-bottom: 32px; }

/* ========== FORM ========== */
.contact-section {
  padding: 80px 0;
  background: var(--canvas);
}

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

.contact-info h2 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 16px;
}

.contact-info p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--body);
  margin-bottom: 32px;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.contact-detail-icon {
  width: 32px;
  height: 32px;
  background: var(--surface-strong);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-detail-text {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
}

.contact-detail-text strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.contact-form {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 32px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  height: 44px;
  font-size: 15px;
  color: var(--ink);
  font-family: inherit;
  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);
  background: var(--surface-card);
}

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

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

.field-error.show { display: block; }

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

.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; }

.form-success {
  display: none;
  background: var(--semantic-success);
  color: #fff;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 15px;
  margin-top: 16px;
  text-align: center;
}

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

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

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

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

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

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

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

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

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

.btn-cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid rgba(247,247,244,0.4);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s;
}

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

/* ========== PAGE HEADER ========== */
.page-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--hairline);
}

.page-header h1 {
  font-size: 42px;
  font-weight: 400;
  letter-spacing: -0.8px;
  color: var(--ink);
  margin-bottom: 16px;
  line-height: 1.15;
}

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

/* ========== PAGE CONTENT ========== */
.page-content {
  max-width: 860px;
  padding: 64px 0 80px;
}

.page-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 48px 0 14px;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 10px;
}

.page-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--body);
  margin-bottom: 18px;
}

.page-content ul, .page-content ol {
  padding-left: 24px;
  margin-bottom: 18px;
}

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

.page-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hairline-soft);
}

/* ========== 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;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}

.footer-brand h3 span { color: var(--primary); }

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

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

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

.footer-col ul a {
  font-size: 14px;
  color: var(--body);
  line-height: 1.4;
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

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

.footer-links {
  display: flex;
  gap: 20px;
}

/* ========== DISCLAIMER ========== */
.disclaimer-bar {
  background: var(--canvas-soft);
  border-top: 1px solid var(--hairline-soft);
  padding: 12px 0;
  text-align: center;
}

.disclaimer-bar p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; letter-spacing: -0.8px; }
  .section-title { font-size: 28px; }
  .page-header h1 { font-size: 30px; }
  .article-header h1 { font-size: 28px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .card-grid { grid-template-columns: 1fr; }
  .card-grid-2 { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .hero h1 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cookie-inner { flex-direction: column; align-items: flex-start; }
}