@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&family=Geist:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --color-roo-green: #0FAE5F;
  --color-roo-green-hover: #14BD68;
  --color-roo-green-press: #0C9A53;
  --color-roo-green-soft: #D9F2E4;
  --color-roo-green-tint: #ECF8F1;
  --color-canopy: #0A4D2C;
  --color-paper: #FAF7F0;
  --color-paper-2: #F4EFE3;
  --color-sand: #E8DFC9;
  --color-white: #FFFFFF;
  --color-ink: #0F1A14;
  --color-ink-2: #2B3530;
  --color-ink-3: #5A6560;
  --color-border: rgba(15, 26, 20, 0.08);
  --shadow-sm: 0 1px 2px rgba(15, 26, 20, 0.04), 0 1px 1px rgba(15, 26, 20, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 26, 20, 0.06), 0 2px 4px rgba(15, 26, 20, 0.04);
  --shadow-lg: 0 24px 48px -12px rgba(15, 26, 20, 0.18);
  --font-display: 'Manrope', 'Inter Tight', system-ui, sans-serif;
  --font-sans: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;
  --max-prose: 740px;
  --content-max: 1180px;
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast: 100ms;
  --dur-base: 200ms;
}

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

html {
  scroll-behavior: smooth;
  background: var(--color-paper);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-ink);
  background:
    radial-gradient(ellipse at center top, rgba(15, 174, 95, 0.08) 0%, transparent 40%),
    var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }

a {
  color: var(--color-roo-green);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.blog-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 28px;
  min-height: 72px;
  padding: 18px 32px;
  background: rgba(250, 247, 240, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 26, 20, 0.04);
}

.blog-nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.blog-nav-logo img {
  height: 36px;
  width: auto;
}

.blog-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.blog-nav-links a {
  font-size: 14px;
  line-height: 1.2;
  font-weight: 500;
  color: var(--color-ink-2);
  white-space: nowrap;
}

.blog-nav-links a:hover,
.blog-nav-links a.active {
  color: var(--color-roo-green);
  text-decoration: none;
}

.blog-nav-spacer { flex: 1; }

.blog-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-md);
  background: var(--color-roo-green);
  border: 1px solid transparent;
  box-shadow: var(--shadow-sm);
  color: var(--color-paper) !important;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--dur-base) var(--ease-standard), transform var(--dur-fast) var(--ease-standard);
}

.blog-nav-cta:hover {
  background: var(--color-roo-green-hover);
  text-decoration: none;
}

.blog-nav-cta:active {
  transform: scale(0.98);
}

@media (max-width: 760px) {
  .blog-nav {
    gap: 16px;
    padding: 14px 18px;
    min-height: 64px;
  }

  .blog-nav-links { display: none; }
  .blog-nav-logo img { height: 30px; }
}

.blog-page {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 56px 32px 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 312px;
  gap: 40px;
  align-items: start;
}

@media (max-width: 980px) {
  .blog-page {
    grid-template-columns: 1fr;
    padding: 36px 20px 72px;
  }

  .blog-sidebar {
    position: static;
    display: grid;
    gap: 18px;
  }
}

.blog-article {
  max-width: var(--max-prose);
  background: var(--color-white);
  border: 1px solid rgba(15, 26, 20, 0.06);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: 36px;
}

@media (max-width: 760px) {
  .blog-article {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }
}

.blog-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 12px;
  line-height: 1.3;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  font-weight: 600;
}

.blog-breadcrumb a {
  color: var(--color-ink-3);
}

.blog-breadcrumb a:hover {
  color: var(--color-roo-green);
  text-decoration: none;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.blog-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.blog-date,
.blog-read-time {
  font-size: 13px;
  color: var(--color-ink-3);
}

.blog-article h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-intro {
  margin: 0 0 36px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  background: var(--color-paper-2);
  border: 1px solid rgba(15, 26, 20, 0.05);
  color: var(--color-ink-2);
  font-size: 18px;
  line-height: 1.55;
}

.blog-content h2 {
  margin: 42px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-content h3 {
  margin: 28px 0 8px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-content p,
.blog-content li,
.blog-content td {
  font-size: 16px;
  line-height: 1.68;
  color: var(--color-ink-2);
}

.blog-content p { margin: 0 0 18px; }

.blog-content ul,
.blog-content ol {
  margin: 0 0 20px 22px;
  padding: 0;
}

.blog-content li { margin-bottom: 10px; }

.blog-content strong {
  color: var(--color-ink);
  font-weight: 600;
}

.blog-content em { font-style: italic; }

.blog-content hr {
  margin: 36px 0;
  border: 0;
  border-top: 1px solid var(--color-border);
}

.blog-content code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.blog-content table {
  width: 100%;
  margin: 28px 0;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
}

.blog-content thead th {
  background: var(--color-paper-2);
  color: var(--color-ink-3);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.blog-content tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(15, 26, 20, 0.05);
  vertical-align: top;
}

.blog-content tbody tr:last-child td {
  border-bottom: 0;
}

.blog-content tbody tr:nth-child(even) td {
  background: rgba(244, 239, 227, 0.42);
}

@media (max-width: 760px) {
  .blog-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

.info-box {
  margin: 28px 0;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  background: var(--color-roo-green-soft);
  border: 1px solid rgba(15, 174, 95, 0.18);
  color: var(--color-ink-2);
}

.info-box p { margin: 0; }

.blog-cta-box {
  margin: 52px 0 0;
  padding: 32px 28px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 90% 0%, rgba(15, 174, 95, 0.34) 0%, transparent 42%),
    var(--color-canopy);
  color: var(--color-paper);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.blog-cta-box h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--color-paper);
}

.blog-cta-box p {
  margin: 0 0 20px;
  color: rgba(250, 247, 240, 0.82);
  font-size: 15px;
  line-height: 1.55;
}

.blog-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid transparent;
  box-shadow: var(--shadow-sm);
  color: var(--color-ink) !important;
  font-size: 15px;
  font-weight: 600;
  transition: background var(--dur-base) var(--ease-standard), transform var(--dur-fast) var(--ease-standard);
}

.blog-cta-btn:hover {
  background: var(--color-paper-2);
  text-decoration: none;
}

.blog-cta-btn:active { transform: scale(0.98); }

.blog-cta-note {
  margin-top: 12px !important;
  margin-bottom: 0 !important;
  font-size: 13px !important;
  color: rgba(250, 247, 240, 0.64) !important;
}

.blog-sidebar {
  position: sticky;
  top: 96px;
}

.sidebar-card,
.sidebar-cta {
  border-radius: var(--radius-xl);
  padding: 22px;
  margin-bottom: 18px;
}

.sidebar-card {
  background: var(--color-white);
  border: 1px solid rgba(15, 26, 20, 0.06);
  box-shadow: var(--shadow-sm);
}

.sidebar-card-title {
  margin-bottom: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.sidebar-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-card li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(15, 26, 20, 0.06);
}

.sidebar-card li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.sidebar-card a {
  color: var(--color-ink-2);
  font-size: 14px;
  line-height: 1.45;
  font-weight: 500;
}

.sidebar-card a:hover {
  color: var(--color-roo-green);
  text-decoration: none;
}

.sidebar-cta {
  background:
    radial-gradient(circle at 90% 0%, rgba(15, 174, 95, 0.34) 0%, transparent 45%),
    var(--color-canopy);
  box-shadow: var(--shadow-lg);
  color: var(--color-paper);
  text-align: left;
}

.sidebar-cta strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--color-paper);
}

.sidebar-cta p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.55;
  color: rgba(250, 247, 240, 0.8);
}

.sidebar-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-ink) !important;
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  font-weight: 600;
}

.sidebar-cta-btn:hover {
  background: var(--color-paper-2);
  text-decoration: none;
}

.blog-footer {
  background: var(--color-canopy);
  color: rgba(250, 247, 240, 0.78);
  padding: 64px 24px 32px;
  text-align: center;
}

.blog-footer-logo {
  height: 34px;
  width: auto;
  margin: 0 auto 18px;
  filter: brightness(0) invert(1);
}

.blog-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 22px;
  margin-bottom: 18px;
}

.blog-footer-links a {
  color: rgba(250, 247, 240, 0.76);
  font-size: 14px;
}

.blog-footer-links a:hover {
  color: var(--color-paper);
  text-decoration: none;
}

.blog-footer p {
  margin: 0;
  font-size: 13px;
  color: rgba(250, 247, 240, 0.56);
}

.blog-index-hero {
  position: relative;
  padding: 84px 24px 68px;
  text-align: center;
  overflow: hidden;
}

.blog-index-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(15, 174, 95, 0.18) 0%, transparent 52%);
  pointer-events: none;
}

.blog-index-hero h1,
.blog-index-hero p {
  position: relative;
}

.blog-index-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.04em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-index-hero p {
  max-width: 620px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-ink-2);
}

.blog-index-body {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 24px 24px 88px;
}

.cluster-section {
  margin-bottom: 56px;
  padding: 28px 0 0;
}

.cluster-label {
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-roo-green);
}

.cluster-section > h2 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

a.blog-card {
  display: block;
  padding: 24px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(15, 26, 20, 0.06);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  color: var(--color-ink);
  transition:
    transform var(--dur-base) var(--ease-standard),
    box-shadow var(--dur-base) var(--ease-standard),
    border-color var(--dur-base) var(--ease-standard),
    background var(--dur-base) var(--ease-standard);
}

a.blog-card:hover {
  transform: translateY(-3px);
  border-color: rgba(15, 174, 95, 0.28);
  box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, var(--color-white) 0%, rgba(236, 248, 241, 0.55) 100%);
  text-decoration: none;
}

.blog-card .card-cluster {
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.blog-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--color-ink);
}

.blog-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.58;
  color: var(--color-ink-3);
}

@media (max-width: 760px) {
  .blog-index-hero {
    padding: 64px 18px 42px;
  }

  .blog-index-hero p {
    font-size: 17px;
  }

  .blog-index-body {
    padding: 12px 18px 64px;
  }

  .blog-card-grid {
    grid-template-columns: 1fr;
  }

  a.blog-card {
    padding: 20px;
    border-radius: var(--radius-lg);
  }
}