/* ==========================================================================
   Specrom Blog — Airbnb GCC Analysis
   Includes: site navbar + footer styles + blog-specific styles
   ========================================================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-primary: #1a56db;
  --clr-primary-dark: #1244b0;
  --clr-primary-light: #e8effc;
  --clr-accent: #f59e0b;
  --clr-accent-dark: #d97706;
  --clr-bg: #ffffff;
  --clr-surface: #f8fafc;
  --clr-surface-alt: #f1f5f9;
  --clr-border: #e2e8f0;
  --clr-text: #1e293b;
  --clr-text-secondary: #475569;
  --clr-text-light: #94a3b8;
  --clr-success: #16a34a;
  --clr-error: #dc2626;
  --font-heading: 'DM Sans', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'DM Sans', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Fira Code', monospace;
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 20px;
  --sp-6: 24px; --sp-8: 32px; --sp-10: 40px; --sp-12: 48px; --sp-16: 64px;
  --sp-20: 80px; --sp-24: 96px;
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px; --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 14px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.1);
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--clr-primary-dark); }

/* ---------- Container ---------- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--sp-6); }
.container--narrow { max-width: 800px; }

/* ---------- Utility ---------- */
.text-primary { color: var(--clr-primary); }
.text-muted { color: var(--clr-text-secondary); }
.text-red { color: var(--clr-error); }
.text-green { color: var(--clr-success); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  font-family: var(--font-body); font-weight: 600; font-size: 1rem;
  padding: 14px 32px; border: none; border-radius: var(--radius-md);
  cursor: pointer; transition: all var(--transition); text-decoration: none; white-space: nowrap;
}
.btn--primary {
  background: var(--clr-primary); color: #fff;
  box-shadow: 0 2px 8px rgba(26,86,219,.35);
}
.btn--primary:hover {
  background: var(--clr-primary-dark); color: #fff; text-decoration: none;
  transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26,86,219,.4);
}
.btn--outline {
  background: transparent; color: var(--clr-primary); border: 2px solid var(--clr-primary);
}
.btn--outline:hover {
  background: var(--clr-primary); color: #fff; text-decoration: none;
}
.btn--lg { padding: 16px 40px; font-size: 1.1rem; }
.btn--sm { padding: 10px 20px; font-size: .9rem; }


/* ==========================================================================
   NAVBAR (from Specrom site)
   ========================================================================== */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--sp-3) 0;
}
.navbar__inner {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-6);
}
.navbar__logo img { height: 38px; width: auto; }
.navbar__links {
  display: flex; align-items: center; gap: var(--sp-8); list-style: none;
}
.navbar__links > li { position: relative; }
.navbar__links a {
  font-size: .92rem; font-weight: 500; color: var(--clr-text-secondary);
  transition: color var(--transition);
}
.navbar__links a:hover { color: var(--clr-primary); text-decoration: none; }

.navbar__dropdown-toggle {
  display: flex; align-items: center; gap: 4px;
  font-size: .92rem; font-weight: 500; color: var(--clr-text-secondary);
  background: none; border: none; cursor: pointer;
  font-family: var(--font-body); transition: color var(--transition); padding: 0;
}
.navbar__dropdown-toggle svg { width: 14px; height: 14px; transition: transform var(--transition); }
.navbar__dropdown-toggle:hover,
.navbar__links > li.open .navbar__dropdown-toggle { color: var(--clr-primary); }
.navbar__links > li.open .navbar__dropdown-toggle svg { transform: rotate(180deg); }

.navbar__dropdown {
  display: none; position: absolute; top: calc(100% + 10px); left: -12px;
  min-width: 220px; background: var(--clr-bg);
  border: 1px solid var(--clr-border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); padding: var(--sp-2) 0; z-index: 200;
}
.navbar__links > li.open .navbar__dropdown { display: block; }
.navbar__dropdown a {
  display: block; padding: 10px var(--sp-5); font-size: .9rem;
  color: var(--clr-text-secondary); white-space: nowrap;
}
.navbar__dropdown a:hover { background: var(--clr-surface); color: var(--clr-primary); }

.navbar__cta { display: flex; align-items: center; gap: var(--sp-4); }
.navbar__toggle {
  display: none; background: none; border: none; cursor: pointer; padding: var(--sp-2);
}
.navbar__toggle svg { width: 26px; height: 26px; stroke: var(--clr-text); }


/* ==========================================================================
   BLOG HERO
   ========================================================================== */
.blog-hero {
  padding: 80px 24px 60px;
  background: linear-gradient(165deg, #f0f5ff 0%, #e8effc 35%, #ffffff 70%);
  text-align: center; position: relative; overflow: hidden;
}
.blog-hero::before {
  content: ''; position: absolute; top: -180px; right: -120px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(26,86,219,.06) 0%, transparent 70%);
  pointer-events: none;
}
.blog-hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--clr-primary-light); color: var(--clr-primary);
  font-size: .82rem; font-weight: 600; padding: 6px 14px;
  border-radius: 50px; margin-bottom: 24px;
}
.blog-hero h1 {
  font-family: var(--font-heading); font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800; line-height: 1.2; color: var(--clr-text);
  margin-bottom: 20px; max-width: 720px; margin-left: auto; margin-right: auto;
}
.blog-hero__desc {
  font-size: 1.1rem; color: var(--clr-text-secondary); line-height: 1.7;
  max-width: 600px; margin: 0 auto 40px;
}
.blog-hero__stats {
  display: flex; gap: 40px; justify-content: center; flex-wrap: wrap;
  padding-top: 32px; border-top: 1px solid var(--clr-border);
}
.stat-item { text-align: center; }
.stat-item__value {
  display: block; font-family: var(--font-mono); font-size: 2rem;
  font-weight: 700; color: var(--clr-text); line-height: 1;
}
.stat-item__value--red { color: var(--clr-error); }
.stat-item__value--green { color: var(--clr-success); }
.stat-item__label {
  display: block; font-size: .8rem; color: var(--clr-text-light);
  text-transform: uppercase; letter-spacing: .08em; margin-top: 6px; font-weight: 500;
}


/* ==========================================================================
   BLOG BODY
   ========================================================================== */
.blog-body { padding: 48px 0 0; }
.blog-section { margin-bottom: 48px; }
.blog-section p { font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
.blog-section h2 {
  font-family: var(--font-heading); font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700; color: var(--clr-text); margin-bottom: 16px; line-height: 1.3;
}


/* ==========================================================================
   CHART CARDS
   ========================================================================== */
.chart-card {
  background: var(--clr-bg); border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg); padding: 32px 28px;
  box-shadow: var(--shadow-sm); transition: box-shadow var(--transition);
}
.chart-card:hover { box-shadow: var(--shadow-md); }
.chart-card__label {
  display: inline-block; font-family: var(--font-mono);
  font-size: .75rem; font-weight: 500; letter-spacing: .12em;
  text-transform: uppercase; color: var(--clr-primary); margin-bottom: 8px;
}
.chart-card__title {
  font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700;
  color: var(--clr-text); margin-bottom: 6px; line-height: 1.3;
}
.chart-card__subtitle {
  font-size: .92rem; color: var(--clr-text-secondary);
  line-height: 1.6; margin-bottom: 24px;
}
.chart-container { position: relative; width: 100%; margin-bottom: 16px; }
.chart-container canvas { width: 100% !important; max-height: 380px; }

.chart-card__callout {
  margin-top: 20px; padding: 16px 20px; background: var(--clr-surface);
  border-radius: var(--radius-sm); font-size: .92rem; line-height: 1.65;
  color: var(--clr-text);
}
.chart-card__callout--blue {
  border-left: 3px solid var(--clr-primary); background: var(--clr-primary-light);
}
.chart-card__callout--amber {
  border-left: 3px solid var(--clr-accent); background: #fffbeb;
}
.chart-card__callout--red {
  border-left: 3px solid var(--clr-error); background: #fef2f2;
}


/* ==========================================================================
   INSIGHTS GRID
   ========================================================================== */
.insights-grid {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg); padding: 40px 32px;
}
.insights-grid__heading {
  font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700; margin-bottom: 28px;
}
.insights-grid__cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px;
}
.insight-card {
  background: var(--clr-bg); border: 1px solid var(--clr-border);
  border-radius: var(--radius-md); padding: 24px 20px;
}
.insight-card__label {
  display: block; font-family: var(--font-mono); font-size: .72rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .12em; color: var(--clr-primary); margin-bottom: 10px;
}
.insight-card p {
  font-size: .92rem; line-height: 1.65; color: var(--clr-text-secondary); margin: 0;
}


/* ==========================================================================
   METHODOLOGY
   ========================================================================== */
.methodology-block { border-top: 1px solid var(--clr-border); padding-top: 40px; }
.methodology-block h3 {
  font-family: var(--font-heading); font-size: 1.25rem;
  font-weight: 700; margin: 8px 0 20px;
}
.methodology-block__details {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius-md); padding: 20px 24px;
}
.methodology-row {
  display: flex; gap: 16px; padding: 6px 0;
  font-family: var(--font-mono); font-size: .82rem;
  line-height: 1.6; color: var(--clr-text-secondary);
}
.methodology-row__key {
  min-width: 130px; font-weight: 500; color: var(--clr-primary); flex-shrink: 0;
}
.methodology-block__note {
  font-size: .88rem; color: var(--clr-text-light); line-height: 1.65; margin-top: 16px;
}


/* ==========================================================================
   BLOG CTA
   ========================================================================== */
.blog-cta {
  background: linear-gradient(135deg, var(--clr-primary) 0%, #2563eb 100%);
  border-radius: var(--radius-xl); padding: 56px 40px; text-align: center; color: #fff;
}
.blog-cta .chart-card__label { color: rgba(255,255,255,.7); }
.blog-cta h2 {
  color: #fff; font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 700; margin: 12px 0 16px;
}
.blog-cta p {
  font-size: 1rem; line-height: 1.7; opacity: .9;
  max-width: 520px; margin: 0 auto 28px; color: #fff;
}
.blog-cta__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.blog-cta .btn--primary {
  background: #fff; color: var(--clr-primary); box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.blog-cta .btn--primary:hover {
  background: var(--clr-primary-light); color: var(--clr-primary-dark);
}
.blog-cta .btn--outline {
  border-color: rgba(255,255,255,.5); color: #fff; background: transparent;
}
.blog-cta .btn--outline:hover {
  border-color: #fff; background: rgba(255,255,255,.1); color: #fff;
}


/* ==========================================================================
   BLOG FOOTER (article-level)
   ========================================================================== */
.blog-footer {
  border-top: 1px solid var(--clr-border); padding: 32px 0 60px; text-align: center;
}
.blog-footer__date {
  font-family: var(--font-mono); font-size: .75rem; color: var(--clr-text-light);
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px;
}
.blog-footer__note {
  font-size: .82rem; color: var(--clr-text-light); line-height: 1.6;
  max-width: 560px; margin: 0 auto;
}


/* ==========================================================================
   SITE FOOTER (from Specrom site)
   ========================================================================== */
.footer {
  padding: var(--sp-16) 0 var(--sp-10);
  background: #0f172a; color: #94a3b8; font-size: .9rem;
}
.footer__top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-8); padding-bottom: var(--sp-12);
  border-bottom: 1px solid #1e293b; margin-bottom: var(--sp-8);
}
.footer__brand-name {
  font-size: 1.1rem; font-weight: 700; color: #e2e8f0;
  margin-bottom: var(--sp-3); letter-spacing: .01em;
}
.footer__brand p {
  font-size: .85rem; line-height: 1.65; max-width: 280px; color: #64748b;
}
.footer__col h4 {
  color: #e2e8f0; font-size: .88rem; font-weight: 700; margin-bottom: var(--sp-4);
}
.footer__col ul {
  list-style: none; display: flex; flex-direction: column; gap: var(--sp-2);
}
.footer__col a {
  color: #64748b; font-size: .85rem; transition: color var(--transition);
}
.footer__col a:hover { color: #e2e8f0; text-decoration: none; }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: var(--sp-4);
}
.footer__copy { font-size: .82rem; color: #475569; }
.footer__social { display: flex; gap: var(--sp-3); }
.footer__social a {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: var(--radius-sm);
  background: #1e293b; color: #94a3b8; transition: all var(--transition);
}
.footer__social a:hover { background: var(--clr-primary); color: #fff; }
.footer__social svg { width: 16px; height: 16px; }


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1100px) {
  .footer__top { grid-template-columns: 1fr 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  body { font-size: 16px; }

  /* Navbar mobile */
  .navbar__links { display: none; }
  .navbar__cta .btn { display: none; }
  .navbar__toggle { display: block; }
  .navbar__links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--clr-bg); border-bottom: 1px solid var(--clr-border);
    padding: var(--sp-4) var(--sp-6); box-shadow: var(--shadow-md); z-index: 200;
  }
  .navbar__links.open li { width: 100%; }
  .navbar__links.open a,
  .navbar__links.open .navbar__dropdown-toggle {
    padding: var(--sp-3) 0; width: 100%;
  }
  .navbar__dropdown {
    position: static; box-shadow: none; border: none; padding: 0 0 0 var(--sp-4);
  }

  /* Blog responsive */
  .blog-hero { padding: 48px 20px 40px; }
  .blog-hero__stats { gap: 24px; }
  .stat-item__value { font-size: 1.5rem; }
  .chart-card { padding: 24px 18px; }
  .insights-grid { padding: 28px 20px; }
  .insights-grid__cards { grid-template-columns: 1fr; }
  .methodology-row { flex-direction: column; gap: 2px; }
  .methodology-row__key { min-width: auto; }
  .blog-cta { padding: 40px 24px; }
  .blog-cta__actions { flex-direction: column; align-items: center; }

  /* Footer mobile */
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .blog-hero__stats { gap: 16px; flex-direction: column; align-items: center; }
  .chart-container canvas { max-height: 280px; }
}