@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;
  --ink: #26251e;
  --body: #5a5852;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --primary: #f54e00;
  --primary-active: #d04200;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 9999px;
}

html { font-size: 16px; scroll-behavior: smooth; }
body { background: 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; transition: opacity 0.15s ease; }
a:hover { opacity: 0.7; }
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-brand { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.nav-brand 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; }
.nav-links a:hover { color: var(--ink); opacity: 1; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; color: var(--ink); }
.nav-toggle svg { width: 20px; height: 20px; }

/* HERO */
.hero { padding: 80px 0; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; 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; padding: 4px 10px; border-radius: var(--radius-pill); margin-bottom: 20px; }
.hero h1 { font-size: 48px; font-weight: 400; color: var(--ink); line-height: 1.1; letter-spacing: -1.5px; margin-bottom: 20px; }
.hero-sub { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 32px; max-width: 480px; }
.hero-meta { font-size: 13px; color: var(--muted); }
.hero-img { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--hairline); }
.hero-img img { width: 100%; height: 340px; object-fit: cover; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); }
.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-desc { font-size: 16px; color: var(--body); line-height: 1.6; max-width: 560px; }

/* ARTICLE CARDS */
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.article-card { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.15s ease; }
.article-card:hover { border-color: var(--hairline-strong); }
.article-card-img { height: 200px; overflow: hidden; }
.article-card-img img { width: 100%; height: 100%; object-fit: cover; }
.article-card-body { padding: 24px; }
.article-card-tag { display: inline-block; background: var(--surface-strong); color: var(--ink); font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; padding: 4px 10px; border-radius: var(--radius-pill); margin-bottom: 12px; }
.article-card-title { font-size: 18px; font-weight: 600; color: var(--ink); line-height: 1.35; margin-bottom: 10px; }
.article-card-excerpt { font-size: 14px; color: var(--body); line-height: 1.55; margin-bottom: 16px; }
.article-card-meta { font-size: 13px; color: var(--muted); }
.article-card-link { display: inline-flex; align-items: center; font-size: 14px; font-weight: 500; color: var(--ink); margin-top: 16px; gap: 6px; border-bottom: 1px solid var(--hairline); padding-bottom: 2px; }
.article-card-link:hover { border-color: var(--ink); opacity: 1; }

/* ARTICLE PAGE */
.article-header { padding: 48px 0 40px; border-bottom: 1px solid var(--hairline); }
.article-header .article-tag { 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; padding: 4px 10px; border-radius: var(--radius-pill); margin-bottom: 16px; }
.article-header h1 { font-size: 40px; font-weight: 400; color: var(--ink); line-height: 1.15; letter-spacing: -1px; margin-bottom: 16px; max-width: 760px; }
.article-header .article-meta { font-size: 14px; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; }
.article-hero-img { width: 100%; height: 420px; object-fit: cover; border-radius: var(--radius-lg); border: 1px solid var(--hairline); margin: 32px 0; }
.article-body { max-width: 760px; }
.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); line-height: 1.3; margin: 28px 0 12px; }
.article-body p { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 20px; }
.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 a { color: var(--ink); border-bottom: 1px solid var(--hairline); }
.article-body a:hover { border-color: var(--ink); opacity: 1; }
.article-body strong { font-weight: 600; color: var(--ink); }

.info-box { background: var(--surface-card); border: 1px solid var(--hairline); border-left: 3px solid var(--primary); border-radius: var(--radius-md); padding: 20px 24px; margin: 28px 0; }
.info-box p { margin: 0; font-size: 15px; }

.code-block { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 20px; margin: 24px 0; overflow-x: auto; }
.code-block code { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--ink); line-height: 1.5; }

.comparison-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.comparison-table th { background: var(--surface-strong); color: var(--ink); font-weight: 600; text-align: left; padding: 12px 16px; font-size: 12px; letter-spacing: 0.5px; text-transform: uppercase; }
.comparison-table td { padding: 12px 16px; color: var(--body); border-bottom: 1px solid var(--hairline-soft); }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:hover td { background: var(--canvas-soft); }

/* ARTICLE LAYOUT */
.article-layout { display: grid; grid-template-columns: 1fr 280px; gap: 48px; padding: 48px 0; }
.article-sidebar { position: sticky; top: 80px; align-self: start; }
.sidebar-card { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; }
.sidebar-card h3 { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.5px; font-size: 11px; }
.sidebar-card ul { list-style: none; }
.sidebar-card ul li { padding: 8px 0; border-bottom: 1px solid var(--hairline-soft); }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { font-size: 14px; color: var(--body); }
.sidebar-card ul li a:hover { color: var(--ink); opacity: 1; }

/* BREADCRUMB */
.breadcrumb { padding: 16px 0; font-size: 13px; color: var(--muted); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); opacity: 1; }
.breadcrumb-sep { color: var(--hairline-strong); }

/* CONTACT FORM */
.contact-section { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 48px; max-width: 600px; }
.contact-section h2 { font-size: 26px; font-weight: 400; color: var(--ink); letter-spacing: -0.325px; margin-bottom: 8px; }
.contact-section p { font-size: 15px; color: var(--body); margin-bottom: 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, .form-group select { width: 100%; background: var(--canvas-soft); border: 1px solid var(--hairline-strong); border-radius: var(--radius-md); padding: 12px 16px; font-size: 15px; color: var(--ink); font-family: inherit; line-height: 1.5; transition: border-color 0.15s ease; outline: none; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--ink); background: var(--surface-card); }
.form-group textarea { min-height: 100px; resize: vertical; }
.form-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(--radius-md); padding: 10px 24px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: inherit; transition: background 0.15s ease; height: 40px; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.form-status { margin-top: 16px; padding: 12px 16px; border-radius: var(--radius-md); font-size: 14px; display: none; }
.form-status.success { background: #e8f5ef; color: var(--success); border: 1px solid #b3ddc9; }
.form-status.error { background: #fdf0f3; color: var(--error); border: 1px solid #f3b8c5; }

/* COOKIE BANNER */
#cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; background: var(--ink); color: var(--canvas); padding: 20px 24px; z-index: 1000; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; box-shadow: 0 -1px 0 rgba(255,255,255,0.08); }
#cookie-banner p { font-size: 14px; line-height: 1.5; flex: 1; min-width: 280px; }
#cookie-banner a { color: var(--canvas); border-bottom: 1px solid rgba(255,255,255,0.3); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.btn-cookie-accept { background: var(--primary); color: var(--on-primary); border: none; border-radius: var(--radius-md); padding: 8px 18px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: inherit; height: 36px; }
.btn-cookie-reject { background: transparent; color: var(--canvas); border: 1px solid rgba(255,255,255,0.3); border-radius: var(--radius-md); padding: 8px 18px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: inherit; height: 36px; }

/* 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 p { font-size: 14px; color: var(--body); line-height: 1.6; margin-top: 12px; max-width: 280px; }
.footer-col h4 { 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 ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); opacity: 1; }
.footer-bottom { border-top: 1px solid var(--hairline); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: gap; gap: 16px; }
.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-disclaimer { font-size: 12px; color: var(--muted-soft); line-height: 1.5; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--hairline-soft); }

/* PAGE HEADER */
.page-header { padding: 48px 0; border-bottom: 1px solid var(--hairline); }
.page-header h1 { font-size: 36px; font-weight: 400; color: var(--ink); letter-spacing: -0.72px; margin-bottom: 12px; }
.page-header p { font-size: 16px; color: var(--body); max-width: 600px; }

/* ABOUT */
.about-section { padding: 64px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.about-img { border-radius: var(--radius-lg); border: 1px solid var(--hairline); overflow: hidden; }
.about-img img { width: 100%; height: 320px; object-fit: cover; }
.about-content h2 { font-size: 26px; font-weight: 400; color: var(--ink); letter-spacing: -0.325px; margin-bottom: 16px; }
.about-content p { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }

/* STATIC PAGES */
.static-content { max-width: 800px; padding: 48px 0; }
.static-content h2 { font-size: 22px; font-weight: 600; color: var(--ink); margin: 36px 0 12px; }
.static-content h3 { font-size: 18px; font-weight: 600; color: var(--ink); margin: 24px 0 10px; }
.static-content p { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }
.static-content ul, .static-content ol { margin: 0 0 16px 24px; }
.static-content li { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 6px; }
.static-content a { color: var(--ink); border-bottom: 1px solid var(--hairline); }

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

/* UPDATES */
.updated-tag { font-size: 12px; color: var(--muted-soft); display: inline-flex; align-items: center; gap: 4px; margin-top: 4px; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 32px; letter-spacing: -0.75px; }
  .section-title { font-size: 28px; }
  .articles-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; 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; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-section { padding: 32px 24px; }
  .article-header h1 { font-size: 28px; }
  .article-hero-img { height: 260px; }
  #cookie-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .hero { padding: 48px 0; }
}