:root {
  --crimson: #b52025;
  --crimson-hover: #9a1b1f;
  --crimson-light: #fff5f5;
  --gold: #d4a843;
  --gold-line: #b8922e;
  --dark: #212121;
  --dark-soft: #333333;
  --bg: #f5f5f5;
  --border: #e5e5e5;
  --gray: #666666;
  --gray-light: #999999;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--dark);
  background: var(--bg);
  background-image: radial-gradient(circle at 1px 1px, rgba(181, 32, 37, 0.04) 1px, transparent 0);
  background-size: 28px 28px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
a { color: var(--crimson); }

.btn-crimson { background: var(--crimson); color: #fff; border: none; font-weight: 600; padding: 10px 24px; border-radius: 6px; }
.btn-crimson:hover { background: var(--crimson-hover); color: #fff; }
.btn-ghost { border: 1.5px solid var(--crimson); color: var(--crimson); font-weight: 500; padding: 10px 24px; background: transparent; border-radius: 6px; }
.btn-ghost:hover { background: var(--crimson-light); border-color: var(--crimson); color: var(--crimson); }
.btn-white { background: #fff; color: var(--dark); border: none; font-weight: 600; padding: 12px 28px; }
.btn-white:hover { background: #eee; color: var(--dark); }

/* Nav */
.site-nav { background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); padding: 8px 0; }
.site-nav .brand { font-size: 1.3rem; font-weight: 300; color: var(--dark); text-decoration: none; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.site-nav .brand .sim { display: inline-block; transform: rotate(-4deg); margin: 0 -1px; vertical-align: middle; }
.site-nav .brand .sim svg { display: block; }
.site-nav .nav-link { color: var(--gray); font-size: 0.95rem; padding: 6px 14px; }
.site-nav .nav-link:hover { color: var(--dark); }

/* Hero */
.hero { padding: 80px 0 0; }
.hero h1 { font-size: 3rem; font-weight: 750; line-height: 1.1; letter-spacing: -0.025em; max-width: 560px; color: var(--crimson); }
.hero h1 span { color: var(--dark); }
.hero .subtext { font-size: 1.1rem; color: var(--gray); line-height: 1.7; max-width: 440px; margin-top: 16px; }

.demo-wrapper { background: var(--dark); border-radius: 10px; padding: 20px 24px; color: #ccc; font-size: 0.88rem; line-height: 1.65; }
.demo-wrapper .demo-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid #333; }
.demo-wrapper .demo-top .label { color: #888; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
.demo-wrapper .demo-top .number { color: #888; font-size: 0.82rem; font-variant-numeric: tabular-nums; }
.demo-wrapper .msg { padding: 4px 0; }
.demo-wrapper .msg .who { font-weight: 600; color: #fff; margin-right: 4px; }
.demo-wrapper .msg .who.agent { color: #e57373; }
.demo-wrapper .action { margin-top: 12px; padding-top: 10px; border-top: 1px solid #333; color: #888; font-size: 0.82rem; }
.demo-wrapper .action i { color: #e57373; }

/* Feature strip */
.feature-strip { background: var(--crimson); padding: 40px 0; margin-top: 80px; }
.feature-strip .feat { text-align: center; color: #fff; }
.feature-strip .feat-val { font-size: 1.6rem; font-weight: 700; }
.feature-strip .feat-label { font-size: 0.82rem; color: rgba(255, 255, 255, 0.7); margin-top: 2px; }

/* How it works */
#how-it-works, #faq { scroll-margin-top: 72px; }
.about { padding: 80px 0; }
.about h2 { color: var(--crimson); font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; }
.about .lead-copy { color: var(--gray); font-size: 1rem; line-height: 1.7; max-width: 640px; }
.about-head { margin-bottom: 44px; }
.step-head { display: flex; align-items: center; margin-bottom: 14px; }
.step-head .icon-tile { width: 48px; height: 48px; border-radius: 12px; background: var(--crimson-light); border: 1px solid rgba(181, 32, 37, 0.15); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step-head .icon-tile i { font-size: 1.35rem; color: var(--crimson); }
.step-head::after { content: ""; flex: 1; margin-left: 14px; border-top: 2px dashed rgba(181, 32, 37, 0.22); }
.step-last .step-head::after { display: none; }
.step-kicker { color: var(--crimson); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.about-step h3 { font-size: 1.15rem; font-weight: 650; margin-bottom: 6px; color: var(--dark); }
.about-step p { color: var(--gray); font-size: 0.95rem; line-height: 1.65; margin: 0; }
@media (max-width: 991.98px) { .step-head::after { display: none; } }

/* Spreadsheet lookup */
.sheets { padding: 0 0 80px; }
.sheets h2 { color: var(--crimson); font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; }
.sheets .lead-copy { color: var(--gray); font-size: 1rem; line-height: 1.7; }
.sheets .uc-points { margin-top: 18px; }
.sheets .uc-points li strong { display: block; color: var(--dark); }

/* Industries / use cases */
.industries { padding: 70px 0; background: var(--crimson-light); }
.industries h2 { font-size: 1.3rem; font-weight: 650; margin-bottom: 16px; color: var(--crimson); }
.ind-tags { margin: 0 -4px 14px; }
.ind-tag { display: inline-block; padding: 8px 18px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.9rem; font-weight: 500; background: #fff; margin: 4px; cursor: pointer; color: var(--dark); }
.ind-tag i { margin-right: 6px; color: var(--crimson); }
.ind-tag:hover { border-color: var(--crimson); }
.ind-tag.active { background: var(--crimson); border-color: var(--crimson); color: #fff; }
.ind-tag.active i { color: #fff; }
.uc-panel { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 28px 30px; }
.uc-panel h3 { color: var(--crimson); font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.uc-scenario { color: var(--gray); font-size: 0.98rem; line-height: 1.65; margin: 0; }
.uc-points { list-style: none; padding: 0; margin: 0; }
.uc-points li { display: flex; gap: 10px; padding: 9px 0; font-size: 0.95rem; border-top: 1px solid var(--border); }
.uc-points li:first-child { border-top: none; padding-top: 0; }
.uc-points i { color: var(--crimson); flex-shrink: 0; }

/* CTA */
.cta { padding: 80px 0; background: var(--crimson); color: #fff; }
.cta h2 { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; }
.cta p { color: rgba(255, 255, 255, 0.85); font-size: 1rem; line-height: 1.65; max-width: 460px; }
.cta-note { color: rgba(255, 255, 255, 0.65); font-size: 0.85rem; margin-top: 12px; }
.cta-steps { list-style: none; padding: 0; margin: 0; }
.cta-steps li { display: flex; align-items: center; gap: 14px; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.18); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; font-weight: 550; }
.cta-steps li:last-child { margin-bottom: 0; }
.cta-steps .n { width: 28px; height: 28px; border-radius: 50%; background: var(--gold); color: var(--dark); font-weight: 700; font-size: 0.9rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* Pricing */
.pricing { padding: 56px 0 80px; }
.pricing .page-head h1 { color: var(--crimson); font-weight: 750; letter-spacing: -0.02em; }
.pricing .page-head p { color: var(--gray); }
.plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plan-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 28px 24px; display: flex; flex-direction: column; position: relative; }
.plan-card.featured { border-color: var(--crimson); box-shadow: 0 8px 30px rgba(181, 32, 37, 0.10); }
.plan-badge { position: absolute; top: -11px; left: 24px; background: var(--crimson); color: #fff; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 4px 10px; border-radius: 20px; }
.plan-name { color: var(--crimson); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; }
.plan-price { font-size: 2.1rem; font-weight: 750; margin: 8px 0 2px; }
.plan-price small { font-size: 0.9rem; font-weight: 500; color: var(--gray); }
.plan-tagline { color: var(--gray); font-size: 0.9rem; min-height: 40px; }
.plan-feats { list-style: none; padding: 0; margin: 18px 0 22px; }
.plan-feats li { padding: 8px 0; font-size: 0.9rem; border-top: 1px solid var(--border); display: flex; gap: 8px; }
.plan-feats li i { color: var(--crimson); flex-shrink: 0; margin-top: 2px; }
.plan-card .btn { margin-top: auto; text-align: center; }
.plan-includes { margin-top: 40px; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 28px 32px; }
.includes-title { color: var(--crimson); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; text-align: center; margin-bottom: 18px; }
.includes-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 28px; }
.includes-grid li { display: flex; gap: 8px; font-size: 0.9rem; align-items: flex-start; }
.includes-grid li i { color: var(--crimson); flex-shrink: 0; margin-top: 3px; }
@media (max-width: 767px) { .includes-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 575px) { .includes-grid { grid-template-columns: 1fr; } }

/* Footer */
.site-footer { background: var(--dark); color: #bbb; padding: 48px 0 26px; margin-top: auto; }
.site-footer .brand { color: #fff; font-weight: 300; font-size: 1.2rem; text-decoration: none; display: inline-flex; align-items: center; }
.site-footer .brand .sim { display: inline-block; transform: rotate(-4deg); margin: 0 -1px; vertical-align: middle; }
.site-footer h4 { color: #fff; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px; }
.site-footer a { color: #bbb; text-decoration: none; font-size: 0.92rem; display: block; padding: 3px 0; }
.site-footer a:hover { color: #fff; }
.site-footer .copyright { border-top: 1px solid #3a3a3a; margin-top: 28px; padding-top: 18px; font-size: 0.82rem; color: var(--gray-light); }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.site-footer .footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; border: 1px solid #3a3a3a; font-size: 0.95rem; padding: 0; }
.site-footer .footer-social a:hover { color: #fff; border-color: var(--crimson); background: var(--crimson); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer .footer-legal a { display: inline; padding: 0; font-size: 0.82rem; color: var(--gray-light); }
.site-footer .footer-legal a:hover { color: #fff; }

/* Blog */
.blog-list { padding: 48px 0 80px; }
.blog-list .page-head h1 { color: var(--crimson); font-weight: 750; }
.blog-grid { column-count: 3; column-gap: 22px; }
@media (max-width: 991px) { .blog-grid { column-count: 2; } }
@media (max-width: 575px) { .blog-grid { column-count: 1; } }
.blog-card { display: inline-block; width: 100%; break-inside: avoid; -webkit-column-break-inside: avoid; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 22px; text-decoration: none; color: inherit; }
.blog-card:hover { border-color: var(--crimson); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05); }
.blog-card h2 { color: var(--crimson); font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }
.blog-meta { color: var(--gray-light); font-size: 0.82rem; margin-bottom: 10px; }
.blog-card p { color: var(--gray); font-size: 0.95rem; margin: 0; }
.article { padding: 48px 0 80px; }
/* Readable measure for long-form articles; the blog index stays full width (masonry). */
.article .container { max-width: 760px; }
.article-head h1 { color: var(--crimson); font-weight: 750; letter-spacing: -0.02em; }
.article-head .blog-meta { margin-top: 8px; }
.prose { font-size: 1.02rem; line-height: 1.75; color: var(--dark-soft); }
.prose h2 { color: var(--crimson); font-weight: 700; margin: 30px 0 10px; font-size: 1.4rem; }
.prose h3 { color: var(--dark); font-weight: 650; margin: 22px 0 8px; }
.prose a { color: var(--crimson); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 4px 0; }
.prose code { background: #f0f0f0; padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }
.prose pre { background: var(--dark); color: #eee; padding: 16px; border-radius: 8px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose blockquote { border-left: 3px solid var(--crimson); padding-left: 16px; color: var(--gray); margin-left: 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.92rem; margin: 18px 0; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--crimson-light); color: var(--crimson); font-weight: 700; }
.prose tbody tr:nth-child(even) { background: #fafafa; }

.crumbs { font-size: 0.82rem; color: var(--gray-light); margin-bottom: 18px; }
.crumbs a { color: var(--gray); text-decoration: none; }
.crumbs a:hover { color: var(--crimson); }
.crumbs span[aria-hidden] { margin: 0 6px; }

.article-cta { background: var(--crimson-light); border: 1px solid var(--border); border-radius: 12px; padding: 26px 28px; margin: 44px 0 8px; }
.article-cta-title { color: var(--crimson); font-weight: 750; font-size: 1.15rem; margin: 0 0 6px; }
.article-cta-desc { color: var(--dark-soft); font-size: 0.95rem; margin: 0 0 16px; }

/* FAQ (home) */
.home-faq { padding: 80px 0; }
.home-faq h2 { color: var(--crimson); font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 20px; }

/* FAQ accordion (article) */
.faq-accordion { margin: 40px 0 8px; }
.faq-accordion > h2 { color: var(--crimson); font-size: 1.4rem; font-weight: 700; margin-bottom: 16px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; }
.faq-item[open] { border-color: var(--crimson); }
.faq-item summary { cursor: pointer; list-style: none; padding: 15px 20px; font-weight: 650; color: var(--dark); display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--crimson); font-size: 1.4rem; line-height: 1; flex-shrink: 0; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-body { padding: 0 20px 16px; color: var(--dark-soft); font-size: 0.98rem; line-height: 1.7; }
.faq-body > :first-child { margin-top: 0; }
.faq-body > :last-child { margin-bottom: 0; }

/* Legal */
.legal { padding: 48px 0 80px; }
.legal h1 { color: var(--crimson); font-weight: 750; letter-spacing: -0.02em; }
.legal .updated { color: var(--gray-light); font-size: 0.85rem; margin-bottom: 28px; }
.legal-section { margin-bottom: 34px; scroll-margin-top: 80px; }
.legal-section h2 { color: var(--crimson); font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; }
.legal-section p, .legal-section li { color: var(--dark-soft); font-size: 0.95rem; line-height: 1.7; }
.legal-section ul { padding-left: 22px; }
.legal-section a { color: var(--crimson); }
.legal-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; margin: 10px 0; }
.legal-table th, .legal-table td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.legal-table th { background: var(--crimson-light); color: var(--crimson); }

/* Language switch */
.lang-switch { display: inline-flex; align-items: center; gap: 4px; }
.lang-switch a { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; color: var(--gray); text-decoration: none; border: 1px solid transparent; }
.lang-switch a:hover { color: var(--crimson); }
.lang-switch a.active { color: var(--crimson); border-color: var(--crimson); background: var(--crimson-light); }
.lang-switch .flag { width: 18px; height: 12px; border-radius: 2px; overflow: hidden; display: inline-block; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08); }
.lang-switch .flag svg { display: block; width: 100%; height: 100%; }
.site-footer .lang-switch a { color: var(--gray-light); }
.site-footer .lang-switch a:hover, .site-footer .lang-switch a.active { color: var(--crimson); }

/* Language dropdown (header) */
.lang-dd-toggle { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; color: var(--gray); background: #fff; border: 1px solid var(--border); }
.lang-dd-toggle:hover, .lang-dd-toggle[aria-expanded="true"] { color: var(--crimson); border-color: var(--crimson); background: var(--crimson-light); }
.lang-dd-toggle .bi { font-size: 0.6rem; }
.lang-dd .flag { width: 18px; height: 12px; border-radius: 2px; overflow: hidden; display: inline-block; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08); }
.lang-dd .flag svg { display: block; width: 100%; height: 100%; }
.lang-dd-menu { --bs-dropdown-link-active-bg: var(--crimson-light); --bs-dropdown-link-active-color: var(--crimson); min-width: 9.5rem; font-size: 0.85rem; border-color: var(--border); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); }
.lang-dd-menu .dropdown-item { display: flex; align-items: center; gap: 8px; font-weight: 600; color: var(--gray); padding-top: 7px; padding-bottom: 7px; }
.lang-dd-menu .dropdown-item:hover { color: var(--crimson); background: var(--crimson-light); }

@media (max-width: 991px) {
  .hero { padding: 56px 0 0; }
  .hero h1 { font-size: 2.3rem; }
  .plan-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 575px) {
  .hero h1 { font-size: 2rem; }
  .plan-grid { grid-template-columns: 1fr; }
  .feature-strip .feat { margin-bottom: 14px; }
}