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

:root {
  --canvas: #f7f7f4;
  --ink: #26251e;
  --primary: #15803d;
  --primary-active: #166534;
  --canvas-soft: #fafaf7;
  --surface-card: #ffffff;
  --surface-strong: #e6e5e0;
  --hairline: #e6e5e0;
  --hairline-soft: #efeee8;
  --hairline-strong: #cfcdc4;
  --body: #5a5852;
  --body-strong: #26251e;
  --muted: #807d72;
  --muted-soft: #a09c92;
  --on-primary: #ffffff;
  --success: #1f8a65;
  --error: #cf2d56;
}

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

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;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--ink);
  font-weight: 400;
  line-height: 1.2;
}

h1 { font-size: clamp(32px, 5vw, 72px); letter-spacing: -2.16px; line-height: 1.1; }
h2 { font-size: clamp(22px, 3vw, 36px); letter-spacing: -0.72px; }
h3 { font-size: clamp(18px, 2.5vw, 26px); letter-spacing: -0.325px; }
h4 { font-size: 22px; letter-spacing: -0.11px; }
h5 { font-size: 18px; font-weight: 600; letter-spacing: 0; }
h6 { font-size: 16px; font-weight: 600; letter-spacing: 0; }

p { color: var(--body); line-height: 1.5; margin-bottom: 1rem; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-active); text-decoration: underline; }

code, pre, kbd, samp {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}

code {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--ink);
}

pre {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  color: var(--ink);
  line-height: 1.5;
}

pre code {
  background: none;
  border: none;
  padding: 0;
}

.section-rhythm { padding-top: 80px; padding-bottom: 80px; }
.section-rhythm-sm { padding-top: 48px; padding-bottom: 48px; }

/* ── NAVIGATION ── */
.site-nav {
  background-color: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-nav .navbar-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.5px;
}

.site-nav .navbar-brand span {
  color: var(--primary);
}

.site-nav .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  padding: 0.5rem 0.75rem;
  transition: color 0.15s;
}

.site-nav .nav-link:hover,
.site-nav .nav-link.active {
  color: var(--ink);
}

.site-nav .navbar-toggler {
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 6px 10px;
}

.site-nav .navbar-toggler:focus { box-shadow: none; }

/* ── BUTTONS ── */
.btn-primary-cta {
  background-color: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: background-color 0.15s;
  text-decoration: none;
}

.btn-primary-cta:hover {
  background-color: var(--primary-active);
  color: var(--on-primary);
  text-decoration: none;
}

.btn-secondary-cta {
  background-color: var(--surface-card);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--hairline-strong);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: border-color 0.15s;
  text-decoration: none;
}

.btn-secondary-cta:hover {
  border-color: var(--muted);
  color: var(--ink);
  text-decoration: none;
}

/* ── HERO ── */
.hero-band {
  background-color: var(--canvas);
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--hairline);
}

.hero-band .hero-kicker {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--surface-strong);
  border-radius: 9999px;
  padding: 4px 10px;
  margin-bottom: 24px;
}

.hero-band h1 {
  color: var(--ink);
  margin-bottom: 24px;
}

.hero-band .hero-sub {
  font-size: 18px;
  color: var(--body);
  max-width: 560px;
  line-height: 1.5;
  margin-bottom: 36px;
}

/* ── ARTICLE CARDS ── */
.article-card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.15s;
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

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

.article-card h3 {
  font-size: 22px;
  letter-spacing: -0.11px;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.3;
}

.article-card h3 a {
  color: var(--ink);
  text-decoration: none;
}

.article-card h3 a:hover { color: var(--primary); text-decoration: none; }

.article-card p {
  font-size: 14px;
  color: var(--body);
  flex-grow: 1;
  margin-bottom: 20px;
}

.article-card .card-meta {
  font-size: 13px;
  color: var(--muted);
  margin-top: auto;
  border-top: 1px solid var(--hairline-soft);
  padding-top: 16px;
}

.card-img-top {
  border-radius: 8px 8px 0 0;
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--hairline);
}

.article-card-with-img {
  padding: 0;
  overflow: hidden;
}

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

/* ── ARTICLE PAGE ── */
.article-layout { padding-top: 48px; padding-bottom: 80px; }

.article-header {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 40px;
}

.article-header .article-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
  display: block;
}

.article-header h1 {
  font-size: clamp(28px, 4vw, 48px);
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 16px;
}

.article-header .article-lead {
  font-size: 18px;
  color: var(--body);
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 24px;
}

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

.article-body h2 {
  font-size: 28px;
  letter-spacing: -0.5px;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline-soft);
}

.article-body h3 {
  font-size: 20px;
  letter-spacing: -0.2px;
  color: var(--ink);
  margin-top: 32px;
  margin-bottom: 12px;
}

.article-body p { line-height: 1.7; color: var(--body); }

.article-body ul, .article-body ol {
  color: var(--body);
  line-height: 1.7;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.article-body li { margin-bottom: 6px; }

.article-body blockquote {
  border-left: 3px solid var(--primary);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--surface-card);
  border-radius: 0 8px 8px 0;
}

.article-body blockquote p {
  margin: 0;
  font-size: 17px;
  color: var(--ink);
  font-style: italic;
}

.article-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  margin: 32px 0 8px;
  display: block;
}

.article-img-caption {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  margin-bottom: 32px;
}

/* ── TOC ── */
.toc-box {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  position: sticky;
  top: 80px;
}

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

.toc-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-box ul li { margin-bottom: 8px; }

.toc-box ul li a {
  font-size: 14px;
  color: var(--body);
  text-decoration: none;
  line-height: 1.4;
  display: block;
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: color 0.15s, border-color 0.15s;
}

.toc-box ul li a:hover {
  color: var(--ink);
  border-left-color: var(--primary);
  text-decoration: none;
}

.toc-box ul li a.active {
  color: var(--primary);
  border-left-color: var(--primary);
}

.toc-box ul li.toc-h3 a { padding-left: 22px; font-size: 13px; }

/* ── BREADCRUMB ── */
.breadcrumb-wrap {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
  margin-bottom: 0;
}

.breadcrumb {
  margin: 0;
  padding: 0;
  background: none;
  font-size: 13px;
}

.breadcrumb-item a { color: var(--muted); text-decoration: none; }
.breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-item.active { color: var(--body); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--muted-soft); }

/* ── RELATED ARTICLES ── */
.related-section {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--hairline);
}

.related-section .section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

/* ── DISCLAIMER BOXES ── */
.disclaimer-box {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 32px 0;
}

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

.disclaimer-box p {
  font-size: 14px;
  color: var(--body);
  margin: 0;
  line-height: 1.6;
}

/* ── CONTACT FORM ── */
.contact-section {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 40px;
}

.contact-section h2 {
  font-size: 28px;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.contact-section .form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}

.contact-section .form-control {
  background: var(--canvas);
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  padding: 12px 16px;
  height: 44px;
  font-size: 16px;
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  transition: border-color 0.15s;
}

.contact-section .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(245, 78, 0, 0.1);
  background: var(--surface-card);
  outline: none;
}

.contact-section .form-control::placeholder { color: var(--muted-soft); }

.form-status { display: none; }

.form-status.loading {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
  padding: 16px 0;
}

.form-status.success {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--success);
  font-size: 15px;
  padding: 16px 0;
}

.spinner-ring {
  width: 20px;
  height: 20px;
  border: 2px solid var(--hairline);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── TAGS / BADGES ── */
.tag-pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  background: var(--surface-strong);
  color: var(--ink);
  border-radius: 9999px;
  padding: 4px 10px;
}

/* ── PAGE HEADER ── */
.page-header {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  padding: 56px 0 48px;
}

.page-header .kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
  margin-bottom: 16px;
}

.page-header h1 {
  font-size: clamp(28px, 4vw, 52px);
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}

.page-header .lead {
  font-size: 18px;
  color: var(--body);
  max-width: 600px;
  line-height: 1.6;
}

/* ── FOOTER ── */
.site-footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 48px;
}

.site-footer .footer-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

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

.site-footer .footer-tagline {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  max-width: 240px;
}

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

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer ul li { margin-bottom: 8px; }

.site-footer ul li a {
  font-size: 14px;
  color: var(--body);
  text-decoration: none;
  transition: color 0.15s;
}

.site-footer ul li a:hover { color: var(--ink); text-decoration: none; }

.site-footer .footer-disclaimer {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 12px;
}

.site-footer .footer-bottom {
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
  margin-top: 48px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── COOKIE BANNER ── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--canvas);
  padding: 20px 0;
  z-index: 9999;
  border-top: 1px solid var(--hairline-strong);
  display: none;
}

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

.cookie-banner p {
  font-size: 14px;
  color: var(--canvas-soft);
  margin: 0 0 0 0;
  line-height: 1.5;
}

.cookie-banner a { color: var(--primary); }

.btn-cookie-accept {
  background: var(--primary);
  color: var(--on-primary);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

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

.btn-cookie-reject {
  background: transparent;
  color: var(--muted-soft);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--muted);
  cursor: pointer;
  white-space: nowrap;
}

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

/* ── SECTION LABELS ── */
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  display: block;
}

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

/* ── UTILITY ── */
.text-ink { color: var(--ink); }
.text-muted-custom { color: var(--muted); }
.text-primary-brand { color: var(--primary); }
.bg-canvas { background-color: var(--canvas); }
.bg-card { background-color: var(--surface-card); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero-band { padding: 64px 0 48px; }
  h1 { letter-spacing: -1px; }
  .toc-box { position: static; margin-bottom: 32px; }
  .site-footer .footer-bottom { flex-direction: column; }
  .contact-section { padding: 24px; }
  .cookie-banner .d-flex { flex-direction: column; gap: 12px; }
  .cookie-banner .cookie-btns { display: flex; gap: 8px; }
}

@media (max-width: 576px) {
  .article-header h1 { letter-spacing: -0.5px; }
  .section-rhythm { padding-top: 48px; padding-bottom: 48px; }
  .hero-band { padding: 48px 0 40px; }
}