/* ============================================================
   PivotRisk Design System
   ============================================================ */

:root {
  --navy:        #1F3864;
  --navy-dark:   #162848;
  --navy-light:  #2C5090;
  --amber:       #F59E0B;
  --amber-dark:  #D97706;
  --gray-50:     #F9FAFB;
  --gray-100:    #F3F4F6;
  --gray-200:    #E5E7EB;
  --gray-400:    #9CA3AF;
  --gray-600:    #4B5563;
  --gray-800:    #1F2937;
  --gray-900:    #111827;
  --white:       #FFFFFF;

  --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;

  --max-w:       1100px;
  --radius:      8px;
  --radius-lg:   14px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:   0 10px 40px rgba(0,0,0,.14), 0 4px 12px rgba(0,0,0,.08);

  --transition:  180ms ease;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--gray-800);
  background: var(--white);
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea { font: inherit; }
h1,h2,h3,h4,h5,h6 { line-height: 1.2; font-weight: 700; }

/* ── Typography Scale ────────────────────────────────────── */
.text-xs   { font-size: .75rem; }
.text-sm   { font-size: .875rem; }
.text-base { font-size: 1rem; }
.text-lg   { font-size: 1.125rem; }
.text-xl   { font-size: 1.25rem; }
.text-2xl  { font-size: 1.5rem; }
.text-3xl  { font-size: 1.875rem; }
.text-4xl  { font-size: 2.25rem; }
.text-5xl  { font-size: 3rem; }

/* ── Layout Utilities ────────────────────────────────────── */
.container  { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.grid-2     { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3     { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4     { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex       { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.gap-6  { gap: 24px; }
.gap-8  { gap: 32px; }

/* ── Colors ──────────────────────────────────────────────── */
.bg-navy   { background: var(--navy); }
.bg-light  { background: var(--gray-50); }
.bg-white  { background: var(--white); }
.text-navy { color: var(--navy); }
.text-amber { color: var(--amber); }
.text-muted { color: var(--gray-600); }
.text-white { color: var(--white); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-weight: 600; font-size: .9375rem;
  transition: all var(--transition); cursor: pointer; border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--amber); color: var(--gray-900);
}
.btn-primary:hover { background: var(--amber-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-navy {
  background: var(--navy); color: var(--white);
}
.btn-navy:hover { background: var(--navy-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,.1); }

.btn-ghost {
  background: transparent; color: var(--navy); padding: 10px 16px;
}
.btn-ghost:hover { background: var(--gray-100); }

.btn-lg { padding: 16px 32px; font-size: 1.0625rem; }
.btn-sm { padding: 8px 16px; font-size: .875rem; }

/* ── Badge / Tag ─────────────────────────────────────────── */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 99px;
  font-size: .75rem; font-weight: 600; letter-spacing: .03em;
  text-transform: uppercase;
}
.badge-navy   { background: rgba(31,56,100,.1); color: var(--navy); }
.badge-amber  { background: rgba(245,158,11,.15); color: #92400E; }
.badge-green  { background: rgba(16,185,129,.12); color: #065F46; }
.badge-gray   { background: var(--gray-100); color: var(--gray-600); }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200); overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-body  { padding: 28px; }
.card-sm .card-body { padding: 20px; }

.card-article {
  display: flex; flex-direction: column; height: 100%;
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}
.card-article:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-article .card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.card-article h3 { color: var(--navy); margin: 10px 0 12px; font-size: 1.125rem; line-height: 1.35; }
.card-article p  { color: var(--gray-600); font-size: .9375rem; flex: 1; }
.card-article .card-footer {
  padding: 16px 28px; border-top: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.card-article .read-more {
  color: var(--navy); font-weight: 600; font-size: .875rem;
  display: flex; align-items: center; gap: 4px;
  transition: gap var(--transition);
}
.card-article:hover .read-more { gap: 8px; }

/* ── Product/Paywall Cards ───────────────────────────────── */
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  border: 2px solid var(--gray-200); padding: 32px;
  transition: all var(--transition); display: flex; flex-direction: column;
}
.product-card.featured {
  border-color: var(--amber); box-shadow: 0 0 0 4px rgba(245,158,11,.1);
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.product-card .price {
  font-size: 2rem; font-weight: 800; color: var(--navy); margin: 12px 0 4px;
}
.product-card .price span { font-size: 1rem; font-weight: 500; color: var(--gray-400); }
.product-card .features { margin: 20px 0 24px; flex: 1; }
.product-card .features li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 6px 0; font-size: .9375rem; color: var(--gray-600);
  border-bottom: 1px solid var(--gray-100);
}
.product-card .features li:last-child { border-bottom: none; }
.product-card .features li::before {
  content: '✓'; color: var(--amber-dark); font-weight: 700; flex-shrink: 0; margin-top: 1px;
}

/* ── Navigation ──────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
  height: 68px; display: flex; align-items: center;
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  width: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-size: 1.375rem; font-weight: 800; color: var(--navy);
  letter-spacing: -.02em; display: flex; align-items: center; gap: 8px;
}
.nav-logo .dot { color: var(--amber); }
.nav-links {
  display: flex; align-items: center; gap: 4px;
}
.nav-links a {
  padding: 8px 14px; border-radius: var(--radius);
  font-size: .9375rem; font-weight: 500; color: var(--gray-600);
  transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--navy); background: var(--gray-100); }
.nav-cta { margin-left: 12px; }
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--gray-800); border-radius: 2px; transition: all var(--transition);
}
.mobile-menu {
  display: none; position: fixed; top: 68px; left: 0; right: 0;
  background: var(--white); border-bottom: 1px solid var(--gray-200);
  padding: 16px 24px; z-index: 99; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: 1rem; font-weight: 500; color: var(--gray-700);
}
.mobile-menu a:hover { background: var(--gray-100); color: var(--navy); }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  color: var(--white); padding: 100px 0 90px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner { position: relative; z-index: 1; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245,158,11,.2); color: var(--amber);
  border: 1px solid rgba(245,158,11,.3);
  padding: 6px 14px; border-radius: 99px;
  font-size: .8125rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800;
  line-height: 1.1; max-width: 700px; margin-bottom: 24px;
  letter-spacing: -.03em;
}
.hero h1 em { font-style: normal; color: var(--amber); }
.hero p {
  font-size: 1.1875rem; color: rgba(255,255,255,.8);
  max-width: 580px; margin-bottom: 40px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-proof {
  margin-top: 64px; padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-proof-label {
  font-size: .75rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.5); margin-bottom: 16px;
}
.company-logos { display: flex; flex-wrap: wrap; gap: 8px; }
.company-logo {
  padding: 6px 14px; border-radius: 6px;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.1);
  font-size: .8125rem; font-weight: 600; color: rgba(255,255,255,.65);
  letter-spacing: .02em;
}

/* ── Section Headers ─────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .eyebrow {
  font-size: .75rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--amber-dark); margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem); color: var(--navy);
  letter-spacing: -.025em; margin-bottom: 16px;
}
.section-header p { font-size: 1.0625rem; color: var(--gray-600); max-width: 560px; margin: 0 auto; }

/* ── Article Page ────────────────────────────────────────── */
.article-header {
  background: var(--navy); color: var(--white); padding: 72px 0 64px;
}
.article-header .eyebrow {
  margin-bottom: 16px; display: inline-block;
}
.article-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem); max-width: 780px;
  margin-bottom: 20px; letter-spacing: -.025em; line-height: 1.15;
}
.article-header .meta {
  display: flex; align-items: center; gap: 20px;
  font-size: .875rem; color: rgba(255,255,255,.65);
}
.article-header .meta strong { color: rgba(255,255,255,.9); }
.article-body { max-width: 760px; margin: 0 auto; padding: 64px 24px; }
.article-body h2 {
  font-size: 1.5rem; color: var(--navy); margin: 48px 0 16px;
  padding-top: 8px; border-top: 2px solid var(--gray-100);
}
.article-body h2:first-child { margin-top: 0; border-top: none; }
.article-body h3 { font-size: 1.125rem; color: var(--gray-800); margin: 32px 0 12px; }
.article-body p  { margin-bottom: 20px; color: var(--gray-700); line-height: 1.75; font-size: 1.0625rem; }
.article-body strong { color: var(--gray-900); font-weight: 600; }
.article-body ul { margin: 0 0 20px 0; }
.article-body ul li {
  padding: 4px 0 4px 20px; position: relative; color: var(--gray-700);
  font-size: 1.0625rem; line-height: 1.7;
}
.article-body ul li::before {
  content: '▪'; position: absolute; left: 0; color: var(--amber-dark); font-size: .7rem; top: 8px;
}
.article-byline {
  margin-top: 56px; padding: 24px; border-radius: var(--radius-lg);
  background: var(--gray-50); border: 1px solid var(--gray-200);
  font-size: .9375rem; color: var(--gray-600); line-height: 1.6;
  font-style: italic;
}
.article-cta {
  margin-top: 48px; padding: 40px; background: var(--navy); border-radius: var(--radius-lg);
  color: var(--white); text-align: center;
}
.article-cta h3 { font-size: 1.25rem; margin-bottom: 12px; }
.article-cta p  { color: rgba(255,255,255,.75); margin-bottom: 24px; font-size: .9375rem; font-style: normal; }

/* ── Footer ──────────────────────────────────────────────── */
footer {
  background: var(--gray-900); color: rgba(255,255,255,.7); padding: 64px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px;
}
footer .logo { font-size: 1.375rem; font-weight: 800; color: var(--white); letter-spacing: -.02em; }
footer .logo .dot { color: var(--amber); }
footer .tagline { font-size: .9375rem; margin-top: 10px; line-height: 1.6; }
footer h4 { color: var(--white); font-size: .8125rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px; }
footer ul li { margin-bottom: 10px; }
footer ul li a { font-size: .9375rem; transition: color var(--transition); }
footer ul li a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,.08);
  display: flex; justify-content: space-between; align-items: center;
  font-size: .875rem;
}

/* ── Divider ─────────────────────────────────────────────── */
.divider { height: 1px; background: var(--gray-200); margin: 0; }

/* ── Forms ───────────────────────────────────────────────── */
.input {
  width: 100%; padding: 12px 16px; border-radius: var(--radius);
  border: 1.5px solid var(--gray-200); font-size: 1rem;
  transition: border-color var(--transition);
  background: var(--white);
}
.input:focus { outline: none; border-color: var(--navy); }
.input::placeholder { color: var(--gray-400); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: .9375rem; margin-bottom: 6px; color: var(--gray-700); }
textarea.input { resize: vertical; min-height: 120px; }

/* ── Newsletter strip ────────────────────────────────────── */
.newsletter-strip {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  padding: 64px 0; color: var(--white);
}
.newsletter-strip h2 { font-size: 1.75rem; margin-bottom: 10px; }
.newsletter-strip p { color: rgba(255,255,255,.75); margin-bottom: 28px; }
.newsletter-form { display: flex; gap: 12px; max-width: 480px; }
.newsletter-form .input { border-color: rgba(255,255,255,.2); background: rgba(255,255,255,.08); color: var(--white); }
.newsletter-form .input::placeholder { color: rgba(255,255,255,.4); }
.newsletter-form .input:focus { border-color: var(--amber); }

/* ── Stat blocks ─────────────────────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray-200); }
.stat-item { background: var(--white); padding: 36px 28px; }
.stat-item .number { font-size: 2.25rem; font-weight: 800; color: var(--navy); letter-spacing: -.03em; }
.stat-item .number span { color: var(--amber-dark); }
.stat-item .label { font-size: .9375rem; color: var(--gray-600); margin-top: 4px; }

/* ── Table of Contents ───────────────────────────────────── */
.toc {
  background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 24px 28px; margin-bottom: 40px;
}
.toc h4 { font-size: .875rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--gray-600); margin-bottom: 12px; }
.toc ol { list-style: decimal; padding-left: 20px; }
.toc ol li { margin-bottom: 6px; }
.toc ol li a { color: var(--navy); font-size: .9375rem; }
.toc ol li a:hover { text-decoration: underline; }

/* ── Paywall Gate ────────────────────────────────────────── */
.paywall-gate {
  text-align: center; padding: 64px 40px;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  border-radius: var(--radius-lg); color: var(--white); margin: 40px 0;
}
.paywall-gate .lock { font-size: 2rem; margin-bottom: 16px; }
.paywall-gate h3 { font-size: 1.5rem; margin-bottom: 12px; }
.paywall-gate p { color: rgba(255,255,255,.75); margin-bottom: 32px; max-width: 400px; margin-left: auto; margin-right: auto; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .grid-3  { grid-template-columns: repeat(2, 1fr); }
  .grid-4  { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .section   { padding: 56px 0; }
  .grid-2    { grid-template-columns: 1fr; }
  .grid-3    { grid-template-columns: 1fr; }
  .grid-4    { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .stat-grid   { grid-template-columns: repeat(2, 1fr); }
  .nav-links   { display: none; }
  .nav-cta     { display: none; }
  .nav-hamburger { display: flex; }
  .hero        { padding: 72px 0 64px; }
  .hero-actions { flex-direction: column; }
  .newsletter-form { flex-direction: column; }
}
@media (min-width: 641px) {
  .mobile-menu { display: none !important; }
}