@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;
  --on-primary: #ffffff;
  --ink: #26251e;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --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 { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--canvas);
  color: var(--body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

.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;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

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

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

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

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

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

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.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 24px 20px;
}

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

.mobile-menu a {
  display: block;
  padding: 10px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
  border-bottom: 1px solid var(--hairline-soft);
}

.mobile-menu a:last-child { border-bottom: none; }

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

.hero-band .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-label {
  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: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 16px;
  color: var(--body);
  line-height: 1.6;
  max-width: 440px;
  margin-bottom: 32px;
}

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

.hero-img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--surface-strong);
}

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

/* ── 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;
}

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

.section-desc {
  font-size: 16px;
  color: var(--body);
  max-width: 560px;
  line-height: 1.6;
}

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

/* ── 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: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s;
}

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

.article-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--surface-strong);
}

.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.article-card:hover .article-card-img img { transform: scale(1.03); }

.article-card-body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

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

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

.article-card-body p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.55;
  flex: 1;
  margin-bottom: 16px;
}

.article-meta {
  font-size: 12px;
  color: var(--muted-soft);
  margin-top: auto;
}

.article-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
}

.article-link::after { content: '→'; }

/* ── FEATURE GRID ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.feature-icon {
  font-size: 24px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.3;
}

.feature-card p {
  font-size: 14px;
  color: var(--body);
  line-height: 1.55;
}

/* ── ARTICLE PAGE ── */
.article-page { padding: 64px 0 80px; }

.article-page .container {
  display: grid;
  grid-template-columns: minmax(0, 720px) 1fr;
  gap: 64px;
  align-items: start;
}

.article-breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

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

.article-header { margin-bottom: 32px; }

.article-header .article-tag {
  display: inline-block;
  background: var(--surface-strong);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 16px;
}

.article-header h1 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 16px;
}

.article-header .article-meta-full {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.article-hero-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  margin-bottom: 40px;
}

.article-hero-img img {
  width: 100%;
  aspect-ratio: 16/7;
  object-fit: cover;
}

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

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 28px 0 12px;
}

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

.article-content ul,
.article-content ol {
  margin: 0 0 18px 0;
  padding-left: 0;
}

.article-content ul li,
.article-content ol li {
  font-size: 16px;
  color: var(--body);
  line-height: 1.65;
  padding: 4px 0 4px 20px;
  position: relative;
}

.article-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--muted);
}

.article-content ol {
  counter-reset: ol-counter;
}

.article-content ol li { counter-increment: ol-counter; }

.article-content ol li::before {
  content: counter(ol-counter) '.';
  position: absolute;
  left: 0;
  color: var(--muted);
  font-weight: 600;
}

.article-content .info-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin: 28px 0;
}

.article-content .info-box h4 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.article-content .info-box p { margin-bottom: 0; font-size: 14px; }

.article-content .ref-link {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--hairline-soft);
  margin-top: 48px;
  padding-top: 20px;
}

.article-content .ref-link a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color 0.15s;
}

.article-content .ref-link a:hover { text-decoration-color: var(--primary); }

/* ── SIDEBAR ── */
.article-sidebar { position: sticky; top: 88px; }

.sidebar-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  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 a {
  display: block;
  font-size: 14px;
  color: var(--body);
  padding: 6px 0;
  border-bottom: 1px solid var(--hairline-soft);
  line-height: 1.45;
}

.sidebar-card a:last-child { border-bottom: none; }
.sidebar-card a:hover { color: var(--ink); }

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

.contact-section .container {
  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: 16px;
  color: var(--body);
  line-height: 1.65;
  margin-bottom: 24px;
}

.contact-detail {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.contact-detail .icon {
  font-size: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-detail p {
  font-size: 14px;
  margin-bottom: 0;
  color: var(--body);
}

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

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--ink);
  background: var(--surface-card);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group .field-error {
  font-size: 12px;
  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 20px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
  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-success {
  display: none;
  background: #edf7f3;
  border: 1px solid #b6dece;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 14px;
  color: var(--success);
  margin-top: 16px;
}

/* ── PAGES (about/privacy/terms) ── */
.page-section { padding: 64px 0 80px; }

.page-header {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
}

.page-header h1 {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.72px;
  color: var(--ink);
  margin-bottom: 12px;
}

.page-header p {
  font-size: 16px;
  color: var(--body);
}

.page-content h2 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.11px;
  color: var(--ink);
  margin: 36px 0 14px;
}

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

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

.page-content ul {
  margin: 0 0 18px 0;
}

.page-content ul li {
  font-size: 16px;
  color: var(--body);
  padding: 4px 0 4px 20px;
  position: relative;
  line-height: 1.65;
}

.page-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--muted);
}

.page-content .two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin: 32px 0;
}

/* ── COOKIE BANNER ── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 18px 24px;
  z-index: 999;
  border-top: 1px solid rgba(255,255,255,0.08);
}

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

.cookie-banner p {
  font-size: 14px;
  color: rgba(247,247,244,0.82);
  flex: 1;
  min-width: 260px;
  line-height: 1.5;
}

.cookie-banner p 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: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}

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

.btn-cookie-reject {
  background: transparent;
  color: rgba(247,247,244,0.7);
  border: 1px solid rgba(247,247,244,0.2);
  border-radius: var(--radius-md);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.btn-cookie-reject:hover {
  border-color: rgba(247,247,244,0.5);
  color: rgba(247,247,244,0.95);
}

/* ── DISCLAIMER ── */
.disclaimer-bar {
  background: var(--canvas-soft);
  border-top: 1px solid var(--hairline);
  padding: 12px 0;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

/* ── 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: 240px;
}

.footer-col h5 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--body);
  padding: 4px 0;
  transition: color 0.15s;
}

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

.footer-bottom {
  border-top: 1px solid var(--hairline-soft);
  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: 20px;
}

.footer-bottom-links a {
  font-size: 13px;
  color: var(--muted);
  transition: color 0.15s;
}

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

/* ── BREADCRUMB ── */
.breadcrumb-bar {
  background: var(--canvas-soft);
  border-bottom: 1px solid var(--hairline-soft);
  padding: 12px 0;
}

.breadcrumb-bar nav {
  font-size: 13px;
  color: var(--muted);
}

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

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero-title { font-size: 38px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .articles-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
}

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

  .hero-band .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-title { font-size: 32px; letter-spacing: -0.8px; }
  .hero-img { max-height: 280px; }

  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }

  .articles-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }

  .article-page .container {
    grid-template-columns: 1fr;
  }

  .article-sidebar { position: static; }

  .article-header h1 { font-size: 28px; }

  .contact-section .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-content .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero-band { padding: 48px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .cookie-banner .container { gap: 16px; }
}