@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;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --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);
}

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; }

/* NAV */
.site-nav {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.3px;
}
.nav-logo span { color: var(--primary); }
.nav-links { display: flex; 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;
}
.nav-links a:hover { color: var(--primary); }
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.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-bottom: 1px solid var(--hairline);
  padding: 16px 24px;
}
.nav-mobile.open { display: block; }
.nav-mobile ul { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.nav-mobile ul a { font-size: 15px; font-weight: 500; color: var(--ink); }

/* HERO */
.hero {
  padding: 80px 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.hero h1 {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 440px;
}
.hero-img-wrap {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface-card);
}
.hero-img-wrap img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* SECTIONS */
.section { padding: 80px 0; }
.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;
  line-height: 1.2;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 600px;
  margin-bottom: 48px;
}
.section--alt { background: var(--surface-card); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

/* ARTICLE CARDS */
.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: 12px;
  overflow: hidden;
  transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--hairline-strong); }
.article-card-img { height: 200px; overflow: hidden; background: var(--surface-strong); }
.article-card-img img { width: 100%; height: 100%; object-fit: cover; }
.article-card-body { padding: 24px; }
.article-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-strong);
  border-radius: 9999px;
  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: 16px;
}
.article-card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}
.article-card-link:hover { color: var(--primary-active); }

/* FEATURES */
.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: 12px;
  padding: 24px;
}
.feature-card-icon {
  width: 40px;
  height: 40px;
  background: var(--surface-strong);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 18px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 8px;
}
.feature-card p { font-size: 14px; color: var(--body); line-height: 1.5; }

/* ARTICLE PAGE */
.article-page { padding: 60px 0 80px; }
.article-header { margin-bottom: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--hairline); }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }
.article-header h1 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}
.article-meta { font-size: 13px; color: var(--muted); display: flex; gap: 20px; flex-wrap: wrap; }
.article-meta-item { display: flex; align-items: center; gap: 6px; }
.article-content { max-width: 760px; }
.article-content h2 {
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.325px;
  color: var(--ink);
  margin: 40px 0 16px;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 12px;
}
.article-content p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 18px; }
.article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 18px; }
.article-content li { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 6px; }
.article-content img { border-radius: 12px; border: 1px solid var(--hairline); margin: 24px 0; width: 100%; }
.article-content .note {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 15px;
  color: var(--body);
}
.article-content a { color: var(--primary); }
.article-content a:hover { color: var(--primary-active); }

/* ARTICLE LAYOUT */
.article-layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; align-items: start; }
.article-sidebar { position: sticky; top: 80px; }
.sidebar-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}
.sidebar-card h4 { font-size: 13px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.sidebar-card ul { list-style: none; }
.sidebar-card ul li { margin-bottom: 10px; border-bottom: 1px solid var(--hairline-soft); padding-bottom: 10px; }
.sidebar-card ul li:last-child { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
.sidebar-card ul li a { font-size: 14px; color: var(--ink); font-weight: 500; }
.sidebar-card ul li a:hover { color: var(--primary); }

/* CONTACT FORM */
.contact-section { padding: 80px 0; background: var(--canvas); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info h2 { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); margin-bottom: 16px; }
.contact-info p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 20px; }
.contact-detail { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.contact-detail-item { font-size: 14px; color: var(--body); }
.contact-detail-item strong { color: var(--ink); }

.contact-form-wrap {
  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: 14px; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--ink);
  font-family: inherit;
  height: 44px;
  transition: border-color 0.15s;
}
.form-group textarea { height: 120px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted-soft); }
.btn-primary {
  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;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.form-message {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  display: none;
}
.form-message.success { display: block; background: #e8f5f1; color: var(--success); border: 1px solid #b8ddd4; }
.form-message.error { display: block; background: #fdf0f3; color: var(--error); border: 1px solid #f5c4cf; }

/* COOKIE BANNER */
#cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 560px;
  background: var(--ink);
  color: var(--canvas);
  border-radius: 12px;
  padding: 20px 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}
#cookie-banner.hidden { display: none; }
#cookie-banner p { font-size: 14px; color: #e6e5e0; line-height: 1.5; }
#cookie-banner a { color: var(--canvas); text-decoration: underline; }
.cookie-btns { display: flex; gap: 10px; }
.btn-cookie-accept {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
}
.btn-cookie-reject {
  background: transparent;
  color: var(--canvas);
  border: 1px solid #5a5852;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
}
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject:hover { border-color: #807d72; }

/* FOOTER */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 48px 0 32px;
}
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { }
.footer-brand .logo { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 10px; }
.footer-brand .logo span { color: var(--primary); }
.footer-brand p { font-size: 14px; color: var(--body); line-height: 1.5; max-width: 240px; }
.footer-col h4 { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 14px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a { font-size: 14px; color: var(--body); }
.footer-col ul a:hover { color: var(--primary); }
.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 a { font-size: 13px; color: var(--muted); }
.footer-bottom a:hover { color: var(--primary); }

/* PAGE HERO */
.page-hero { padding: 60px 0 40px; border-bottom: 1px solid var(--hairline); }
.page-hero h1 { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--body); line-height: 1.6; max-width: 600px; }
.page-content { padding: 60px 0 80px; }
.page-content h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); margin: 40px 0 16px; }
.page-content h3 { font-size: 20px; font-weight: 600; color: var(--ink); margin: 28px 0 12px; }
.page-content p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 16px; }
.page-content ul, .page-content ol { padding-left: 24px; margin-bottom: 16px; }
.page-content li { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 6px; }
.page-content a { color: var(--primary); }
.page-content a:hover { color: var(--primary-active); }
.updated-note { font-size: 13px; color: var(--muted); margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hairline); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 38px; }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .hero-img-wrap { display: none; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .articles-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .section-title { font-size: 28px; }
  #cookie-banner { left: 16px; right: 16px; bottom: 16px; }
}
@media (max-width: 640px) {
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .contact-form-wrap { padding: 20px; }
}