/* Kestrel HR Analytics — sample site
   Note: this is a synthetic demo site for Altiv.AI play testing.
   Brand and visual identity intentionally distinct from Altiv.AI. */

:root {
  --ink:        #0F172A;
  --ink-mid:    #1E293B;
  --slate:      #475569;
  --slate-soft: #64748B;
  --mist:       #CBD5E1;
  --cloud:      #E2E8F0;
  --paper:      #F8FAFC;
  --white:      #FFFFFF;

  --royal:      #1E40AF;
  --royal-dark: #1E3A8A;
  --royal-pale: #DBEAFE;
  --amber:      #D97706;
  --amber-pale: #FEF3C7;
  --emerald:    #047857;

  --shadow-sm: 0 1px 2px rgba(15,23,42,0.06);
  --shadow-md: 0 4px 12px rgba(15,23,42,0.08);

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Lora", Georgia, "Times New Roman", serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--royal); text-decoration: none; transition: color 0.12s; }
a:hover { color: var(--royal-dark); text-decoration: underline; }

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

/* ───────── Layout ───────── */
.container { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ───────── Header / Nav ───────── */
.site-header {
  border-bottom: 1px solid var(--cloud);
  background: var(--white);
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 20px; font-weight: 600;
  color: var(--ink); letter-spacing: -0.01em;
  text-decoration: none;
}
.brand:hover { color: var(--ink); text-decoration: none; }
.brand-mark {
  width: 28px; height: 28px;
  background: var(--royal); color: white;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  font-family: var(--font-body); font-weight: 700; font-size: 14px;
}
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  color: var(--slate); font-size: 14px; font-weight: 500;
  padding: 8px 14px; border-radius: 6px; transition: color 0.12s, background 0.12s;
}
.site-nav a:hover { color: var(--ink); background: var(--paper); text-decoration: none; }
.btn-trial {
  background: var(--royal); color: white;
  padding: 9px 18px; border-radius: 8px;
  font-weight: 600; font-size: 14px;
}
.btn-trial:hover { background: var(--royal-dark); color: white; text-decoration: none; }

/* ───────── Hero ───────── */
.hero {
  padding: 72px 0 60px;
  background: linear-gradient(180deg, var(--paper) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--cloud);
}
.hero-eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--royal);
  background: var(--royal-pale);
  padding: 5px 12px; border-radius: 999px;
  margin-bottom: 16px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 48px; font-weight: 600;
  line-height: 1.12; letter-spacing: -0.02em;
  color: var(--ink); max-width: 720px;
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 19px; color: var(--slate);
  line-height: 1.55; max-width: 620px;
  margin-bottom: 30px;
}
.hero-cta-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-block;
  background: var(--royal); color: white;
  padding: 13px 24px; border-radius: 8px;
  font-weight: 600; font-size: 15px;
}
.btn-primary:hover { background: var(--royal-dark); color: white; text-decoration: none; }
.btn-secondary {
  display: inline-block;
  background: transparent; color: var(--ink);
  padding: 13px 22px; border-radius: 8px;
  font-weight: 600; font-size: 15px;
  border: 1.5px solid var(--mist);
}
.btn-secondary:hover { background: var(--paper); color: var(--ink); text-decoration: none; }

/* ───────── Article ───────── */
.article-header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--cloud);
  background: var(--paper);
}
.article-category {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--royal); margin-bottom: 14px;
}
.article-title {
  font-family: var(--font-display);
  font-size: 40px; font-weight: 600;
  line-height: 1.15; letter-spacing: -0.015em;
  color: var(--ink); margin-bottom: 18px;
}
.article-byline {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: 14px; color: var(--slate);
}
.byline-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--royal); color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 13px;
}
.byline-author { color: var(--ink); font-weight: 600; }
.byline-author:hover { color: var(--royal); }
.byline-meta { color: var(--slate-soft); }

.article-body {
  padding: 40px 0 60px;
  font-size: 18px;
  color: var(--ink-mid);
  line-height: 1.75;
}
.article-body p { margin-bottom: 22px; }
.article-body h2 {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 600;
  line-height: 1.25; letter-spacing: -0.01em;
  color: var(--ink);
  margin: 44px 0 18px;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600;
  color: var(--ink);
  margin: 32px 0 14px;
}
.article-body ul, .article-body ol { margin: 0 0 22px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--royal);
  padding: 4px 0 4px 22px;
  margin: 28px 0; color: var(--ink-mid);
  font-style: italic;
}
.article-body figure { margin: 32px 0; }
.article-body figcaption { font-size: 14px; color: var(--slate); margin-top: 8px; }

.callout {
  background: var(--paper);
  border-left: 3px solid var(--amber);
  padding: 18px 22px;
  border-radius: 6px;
  margin: 28px 0;
  font-size: 17px;
}

.faq-block { margin: 40px 0; }
.faq-item {
  border-bottom: 1px solid var(--cloud);
  padding: 18px 0;
}
.faq-q {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 600;
  color: var(--ink); margin-bottom: 8px;
}
.faq-a { font-size: 17px; color: var(--ink-mid); line-height: 1.7; }

.sources {
  background: var(--paper);
  border: 1px solid var(--cloud);
  border-radius: 8px;
  padding: 22px 26px;
  margin: 36px 0;
  font-size: 15px;
}
.sources h3 {
  font-family: var(--font-body);
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--slate);
  margin-bottom: 12px;
}
.sources ol { margin: 0 0 0 20px; }
.sources li { margin-bottom: 6px; color: var(--slate); }
.sources a { color: var(--royal); }

/* ───────── Author bio ───────── */
.author-hero {
  padding: 56px 0 40px;
  background: var(--paper);
  border-bottom: 1px solid var(--cloud);
}
.author-hero-inner { display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap; }
.author-photo {
  width: 96px; height: 96px; border-radius: 50%;
  background: linear-gradient(135deg, var(--royal) 0%, var(--royal-dark) 100%);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 36px; font-weight: 600;
  flex-shrink: 0;
}
.author-info { flex: 1; min-width: 280px; }
.author-name {
  font-family: var(--font-display);
  font-size: 34px; font-weight: 600;
  color: var(--ink); line-height: 1.15;
  margin-bottom: 6px;
}
.author-role { font-size: 16px; color: var(--slate); margin-bottom: 14px; }
.author-links { display: flex; gap: 12px; flex-wrap: wrap; font-size: 14px; }
.author-links a { color: var(--royal); }
.author-bio-body {
  padding: 36px 0 56px;
  font-size: 17px; line-height: 1.7; color: var(--ink-mid);
}
.author-bio-body h2 {
  font-family: var(--font-display);
  font-size: 22px; color: var(--ink);
  margin: 28px 0 10px;
}
.author-bio-body p { margin-bottom: 18px; }
.author-articles {
  list-style: none; padding: 0; margin: 18px 0 0;
}
.author-articles li { padding: 10px 0; border-bottom: 1px solid var(--cloud); }
.author-articles a { font-weight: 600; color: var(--ink); }
.author-articles a:hover { color: var(--royal); }
.author-articles-meta { font-size: 13px; color: var(--slate); }

/* ───────── Programmatic / industry pages ───────── */
.solution-hero {
  padding: 64px 0 48px;
  background: linear-gradient(180deg, var(--royal-pale) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--cloud);
}
.solution-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--royal); margin-bottom: 14px;
}
.solution-h1 {
  font-family: var(--font-display);
  font-size: 44px; font-weight: 600;
  line-height: 1.12; letter-spacing: -0.02em;
  color: var(--ink); max-width: 720px;
  margin-bottom: 16px;
}
.solution-sub { font-size: 18px; color: var(--slate); max-width: 620px; }
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  margin: 36px 0;
}
.feature-card {
  background: var(--paper);
  border: 1px solid var(--cloud);
  border-radius: 12px;
  padding: 24px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px; color: var(--ink);
  margin-bottom: 8px;
}
.feature-card p { font-size: 15px; color: var(--slate); line-height: 1.6; }

.outcomes-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  background: var(--ink);
  border-radius: 12px;
  padding: 28px 24px;
  margin: 40px 0;
  color: var(--white);
}
.outcome-stat .num {
  font-family: var(--font-display);
  font-size: 44px; font-weight: 600;
  color: var(--amber-pale);
  line-height: 1;
}
.outcome-stat .lbl {
  font-size: 13px; color: rgba(255,255,255,0.75);
  margin-top: 8px; line-height: 1.5;
}

/* ───────── Cards / lists on home ───────── */
.section { padding: 60px 0; }
.section-title {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 600;
  color: var(--ink); margin-bottom: 6px;
}
.section-sub { font-size: 16px; color: var(--slate); margin-bottom: 28px; }
.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card {
  background: var(--white);
  border: 1px solid var(--cloud);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.card:hover { border-color: var(--royal); box-shadow: var(--shadow-md); }
.card-category {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--royal); margin-bottom: 10px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 19px; color: var(--ink);
  line-height: 1.3; margin-bottom: 8px;
}
.card-title a { color: var(--ink); }
.card-title a:hover { color: var(--royal); text-decoration: none; }
.card-deck { font-size: 14px; color: var(--slate); line-height: 1.55; margin-bottom: 12px; }
.card-meta { font-size: 12px; color: var(--slate-soft); }

/* ───────── Footer ───────── */
.site-footer {
  background: var(--ink);
  color: var(--mist);
  padding: 48px 0 30px;
  margin-top: 60px;
}
.site-footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
  padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand-block .brand { color: white; }
.footer-brand-block .brand-mark { background: var(--royal); }
.footer-tagline { color: var(--slate-soft); font-size: 14px; line-height: 1.6; margin-top: 12px; max-width: 280px; }
.footer-col-title {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--mist);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--slate-soft); font-size: 14px; }
.footer-col a:hover { color: white; }
.footer-bottom {
  padding-top: 22px; display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--slate-soft); flex-wrap: wrap; gap: 12px;
}

/* ───────── Responsive ───────── */
@media (max-width: 720px) {
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 17px; }
  .article-title { font-size: 30px; }
  .article-body { font-size: 17px; }
  .article-body h2 { font-size: 24px; }
  .solution-h1 { font-size: 32px; }
  .feature-grid { grid-template-columns: 1fr; }
  .outcomes-strip { grid-template-columns: 1fr; gap: 20px; }
  .site-footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .site-nav { display: none; }
  .card-grid { grid-template-columns: 1fr; }
  .author-photo { width: 72px; height: 72px; font-size: 28px; }
}