@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;
  --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-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; }

/* 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-brand { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -0.02em; }
.nav-brand span { color: var(--primary); }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--body); transition: color 0.15s; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; transition: all 0.2s; }

/* HERO */
.hero { padding: 80px 0; }
.hero-label { 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: 24px; }
.hero h1 { font-size: 72px; font-weight: 400; line-height: 1.1; letter-spacing: -2.16px; color: var(--ink); max-width: 760px; margin-bottom: 24px; }
.hero-sub { font-size: 18px; color: var(--body); max-width: 560px; margin-bottom: 40px; line-height: 1.55; }
.hero-img { margin-top: 56px; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--hairline); }
.hero-img img { width: 100%; max-height: 480px; object-fit: cover; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-label { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.section-title { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); line-height: 1.2; margin-bottom: 16px; }
.section-sub { font-size: 16px; color: var(--body); max-width: 580px; line-height: 1.6; }
.section-divider { border: none; border-top: 1px solid var(--hairline); margin: 0; }

/* CARD GRID */
.card-grid { display: grid; gap: 20px; }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.card { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 24px; }
.card-img { border-radius: var(--radius-md); overflow: hidden; margin-bottom: 20px; }
.card-img img { width: 100%; height: 200px; object-fit: cover; }
.card-tag { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.card h3 { font-size: 18px; font-weight: 600; color: var(--ink); line-height: 1.35; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--body); line-height: 1.6; }
.card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; font-size: 14px; font-weight: 500; color: var(--ink); }
.card-link:hover { color: var(--primary); }
.card-link::after { content: '→'; transition: transform 0.15s; }
.card-link:hover::after { transform: translateX(3px); }

/* ARTICLE HERO */
.article-hero { padding: 56px 0 0; }
.article-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.article-meta .badge { background: var(--surface-strong); font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--ink); padding: 4px 10px; border-radius: var(--radius-pill); }
.article-meta .date { font-size: 14px; color: var(--muted); }
.article-hero h1 { font-size: 48px; font-weight: 400; letter-spacing: -1.2px; color: var(--ink); line-height: 1.15; max-width: 760px; margin-bottom: 20px; }
.article-intro { font-size: 18px; color: var(--body); max-width: 680px; line-height: 1.6; margin-bottom: 40px; }
.article-cover { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--hairline); margin-bottom: 56px; }
.article-cover img { width: 100%; max-height: 500px; object-fit: cover; }

/* ARTICLE BODY */
.article-body { max-width: 760px; }
.article-body h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); line-height: 1.25; margin: 48px 0 16px; }
.article-body h3 { font-size: 20px; font-weight: 600; color: var(--ink); line-height: 1.35; margin: 32px 0 12px; }
.article-body p { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 20px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 20px; }
.article-body li { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 8px; }
.article-body strong { color: var(--body-strong); font-weight: 600; }
.article-body a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hairline-strong); text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary); text-decoration-color: var(--primary); }
.info-box { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 24px; margin: 32px 0; }
.info-box-title { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.info-box p { margin-bottom: 0; }
.code-note { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 20px 24px; margin: 24px 0; font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--ink); line-height: 1.6; }

/* RELATED ARTICLES */
.related { padding: 64px 0; border-top: 1px solid var(--hairline); margin-top: 64px; }
.related-title { font-size: 22px; font-weight: 400; color: var(--ink); letter-spacing: -0.11px; margin-bottom: 32px; }

/* BREADCRUMB */
.breadcrumb { padding: 20px 0; font-size: 14px; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { margin: 0 8px; }

/* CONTACT FORM */
.form-section { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 40px; }
.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(--radius-md); padding: 12px 16px; font-size: 16px; font-family: inherit; color: var(--ink); height: 44px; transition: border-color 0.15s; outline: none; }
.form-group textarea { height: auto; min-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(--error); }
.form-error { font-size: 13px; color: var(--error); margin-top: 6px; 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; font-family: inherit; cursor: pointer; height: 40px; 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: 16px; padding: 14px 18px; border-radius: var(--radius-md); font-size: 14px; display: none; }
.form-message.success { background: #e8f5f0; color: var(--success); border: 1px solid #b8ddd0; }

/* ABOUT INTRO */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; padding: 80px 0; }
.about-intro-img { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--hairline); }
.about-intro-img img { width: 100%; height: 380px; object-fit: cover; }
.about-intro-text h1 { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); line-height: 1.2; margin-bottom: 20px; }
.about-intro-text p { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }

/* PAGE HERO (privacy/terms) */
.page-hero { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); margin-bottom: 56px; }
.page-hero h1 { font-size: 48px; font-weight: 400; letter-spacing: -1.2px; color: var(--ink); line-height: 1.15; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--muted); }
.prose h2 { font-size: 22px; font-weight: 400; color: var(--ink); letter-spacing: -0.11px; margin: 40px 0 14px; }
.prose h3 { font-size: 18px; font-weight: 600; color: var(--ink); margin: 28px 0 10px; }
.prose p, .prose li { font-size: 16px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 16px; }
.prose a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--primary); }

/* 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: 40px; margin-bottom: 48px; }
.footer-brand { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 12px; }
.footer-brand span { color: var(--primary); }
.footer-desc { font-size: 14px; color: var(--body); line-height: 1.6; max-width: 240px; }
.footer-col-title { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--body); transition: color 0.15s; }
.footer-links 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; }
.footer-copy { font-size: 13px; color: var(--muted); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 13px; color: var(--muted); }
.footer-legal a:hover { color: var(--ink); }

/* 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-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.cookie-text { flex: 1; font-size: 14px; line-height: 1.5; color: var(--canvas-soft); }
.cookie-text a { color: var(--canvas); text-decoration: underline; }
.cookie-actions { display: flex; gap: 10px; 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; }
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject { background: transparent; color: var(--canvas-soft); 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; }
.btn-cookie-reject:hover { border-color: rgba(255,255,255,0.6); }

/* SPINNER */
.spinner { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* UTILITIES */
.mt-48 { margin-top: 48px; }
.mb-32 { margin-bottom: 32px; }
.text-muted { color: var(--muted); font-size: 14px; }
.updated { font-size: 13px; color: var(--muted); margin-top: 8px; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 56px; letter-spacing: -1.4px; }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 36px; letter-spacing: -0.9px; }
  .hero-sub { font-size: 16px; }
  .section-title { font-size: 28px; }
  .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
  .article-hero h1 { font-size: 32px; letter-spacing: -0.5px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); flex-direction: column; padding: 16px 24px; gap: 0; }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--hairline-soft); }
  .nav-links a { display: block; padding: 12px 0; }
  .nav-toggle { display: block; }
  .site-nav { position: relative; }
  .page-hero h1 { font-size: 32px; }
  .about-intro-text h1 { font-size: 28px; }
  .form-section { padding: 24px; }
}

@media (max-width: 480px) {
  .cookie-inner { flex-direction: column; align-items: flex-start; }
  .cookie-actions { width: 100%; }
  .btn-cookie-accept, .btn-cookie-reject { flex: 1; text-align: center; }
}