/* Public website */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.muted-light { color: #8fb8a8; }

.demo-banner { background: var(--graphite-900); color: var(--graphite-300); font-size: .8rem; text-align: center; padding: .45rem 16px; display: flex; gap: .6rem; justify-content: center; align-items: center; flex-wrap: wrap; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; font-weight: 700; font-size: 1.1rem; color: var(--green-900); text-decoration: none; letter-spacing: -.01em; }
.brand.light { color: var(--white); margin-bottom: .4rem; }
.nav-links { display: flex; align-items: center; gap: 1.4rem; }
.nav-links a:not(.btn) { color: var(--graphite-700); text-decoration: none; font-size: .92rem; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--green-700); }
.nav-toggle { display: none; background: none; border: 0; padding: .4rem; color: var(--graphite-900); cursor: pointer; }

.eyebrow { font-family: var(--mono); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--amber-500); margin: 0 0 .9rem; display: flex; gap: .7rem; align-items: center; flex-wrap: wrap; }
.eyebrow.dark { color: var(--green-700); }

/* Hero */
.hero { background: var(--green-900); color: var(--white); padding: 72px 0 80px; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 80% 20%, rgba(42,140,106,.25), transparent 60%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
.hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); font-weight: 700; letter-spacing: -.025em; }
.lede { font-size: 1.1rem; color: var(--green-100); max-width: 34em; }
.hero-cta { display: flex; gap: .8rem; margin: 1.6rem 0; flex-wrap: wrap; }
.hero-points { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; font-size: .92rem; color: var(--green-200); }
.hero-points li { padding-left: 1.4rem; position: relative; }
.hero-points li::before { content: ''; position: absolute; left: 0; top: .55em; width: .65rem; height: .65rem; border: 2px solid var(--amber-500); border-radius: 2px; }
.hero-viz { margin: 0; }
.hero-viz svg { display: block; width: 100%; height: auto; border-radius: 10px; box-shadow: 0 20px 50px rgba(0,0,0,.35); }
.hero-viz figcaption { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .78rem; color: var(--green-200); margin-top: .7rem; align-items: center; }
.hero-viz figcaption span { display: inline-flex; gap: .4rem; align-items: center; }
.hero-viz .k { display: inline-block; width: 22px; border-top: 2px solid; }
.hero-viz .k.v { border-color: #5fc19a; }
.hero-viz .k.u { border-color: #9aa3aa; border-top-style: dashed; }
.hero-viz .k.p { border-color: var(--amber-500); border-top-style: dotted; border-top-width: 3px; }
.hv-nodes rect { fill: #133f31; stroke: #2a8c6a; stroke-width: 1; }
.hv-nodes text { fill: #e5f0eb; }
.hv-nodes .root rect { fill: var(--amber-500); stroke: var(--amber-500); }
.hv-nodes .root text { fill: var(--graphite-950); font-weight: 600; }
.hv-nodes .maybe rect { stroke: var(--amber-500); stroke-dasharray: 2 3; }
.hv-nodes .gap rect { stroke: var(--amber-500); stroke-width: 2; }
.hv-nodes .dlv rect { fill: #0e3428; }
.hv-edges .v { stroke: #5fc19a; }
.hv-edges .u { stroke: #9aa3aa; }
.hv-edges .p { stroke: var(--amber-500); }
.hv-edges .flow { stroke-dasharray: 6 5; animation: flow 1.6s linear infinite; }
.hv-edges .flow.p { stroke-dasharray: 2 5; }
@keyframes flow { to { stroke-dashoffset: -22; } }
@media (prefers-reduced-motion: reduce) { .hv-edges .flow { animation: none; } }

/* Strip */
.strip { border-bottom: 1px solid var(--border); background: var(--graphite-50); }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip-grid > div { padding: 22px 20px; border-left: 1px solid var(--border); display: grid; gap: .25rem; }
.strip-grid > div:first-child { border-left: 0; padding-left: 0; }
.strip-grid strong { color: var(--green-800); font-size: .95rem; }
.strip-grid span { color: var(--graphite-700); font-size: .86rem; }

/* Sections */
.section { padding: 84px 0; }
.section h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--green-950); max-width: 26em; }
.section-lede { color: var(--graphite-700); font-size: 1.05rem; max-width: 46em; margin-bottom: 2.4rem; }
.section-lede.light { color: var(--green-100); }
.section-tint { background: var(--graphite-50); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-dark { background: var(--graphite-900); color: var(--white); }
.section-dark h2 { color: var(--white); }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { border: 1px solid var(--border); border-radius: 8px; padding: 24px; background: var(--white); }
.feature h3 { font-size: 1.05rem; color: var(--green-900); }
.feature p { color: var(--graphite-700); font-size: .92rem; margin: 0; }
.f-icon { width: 40px; height: 40px; border-radius: 6px; background: var(--green-100); color: var(--green-700); display: grid; place-items: center; margin-bottom: 14px; }
.f-icon svg { width: 22px; height: 22px; }
.feature-modules { background: var(--green-900); border-color: var(--green-900); color: var(--white); }
.feature-modules h3 { color: var(--white); }
.modules { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: .35rem .8rem; font-size: .86rem; color: var(--green-100); }
.modules li::before { content: '▸ '; color: var(--amber-500); }

.pipeline { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; counter-reset: s; }
.pipeline li { background: var(--graphite-800); border: 1px solid var(--graphite-700); border-radius: 8px; padding: 18px 16px; display: grid; gap: .4rem; align-content: start; position: relative; }
.pipeline li:not(:last-child)::after { content: '→'; position: absolute; right: -12px; top: 18px; color: var(--graphite-500); font-size: 14px; }
.pipeline .step { font-family: var(--mono); font-size: .75rem; color: var(--green-200); }
.pipeline strong { font-size: .95rem; }
.pipeline em { font-style: normal; font-size: .8rem; color: var(--graphite-300); }
.pipeline li.human { background: var(--amber-100); border-color: var(--amber-500); color: var(--graphite-950); }
.pipeline li.human em { color: #5b3d06; }
.pipeline li.human .step { color: var(--amber-600); }

/* Demo */
.demo-panel { display: grid; grid-template-columns: 1fr; gap: 20px; border: 1px solid var(--border); border-radius: 10px; padding: 24px; background: var(--white); box-shadow: var(--shadow); }
.demo-controls { display: flex; gap: 1rem 1.4rem; align-items: end; flex-wrap: wrap; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.demo-controls .field { flex: 1 1 320px; max-width: 460px; }
.demo-controls .check { margin: 0 0 .6rem; }
.demo-output { min-width: 0; display: grid; gap: 1rem; }
.demo-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.stat { border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; }
.stat b { display: block; font-size: 1.5rem; font-family: var(--mono); color: var(--green-800); line-height: 1.1; }
.stat span { font-size: .76rem; color: var(--muted); }
.stat small { display: block; font-size: .72rem; color: var(--graphite-500); margin-top: .2rem; }
.uncertainty { font-size: .86rem; color: var(--graphite-700); background: var(--graphite-50); border: 1px solid var(--border); border-radius: 6px; padding: .7rem .9rem; margin: 0; }
.demo-output h4 { margin: .4rem 0 0; font-size: .9rem; color: var(--green-900); }

/* Use cases */
.usecase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.usecase { background: var(--white); border: 1px solid var(--border); border-top: 3px solid var(--green-700); border-radius: 6px; padding: 22px; display: grid; align-content: start; gap: .3rem; }
.usecase h3 { font-size: 1rem; color: var(--green-900); margin: 0; }
.usecase p { margin: 0 0 .6rem; color: var(--graphite-700); font-size: .9rem; }
.uc-tag { justify-self: start; font-family: var(--mono); font-size: .72rem; color: var(--green-800); background: var(--green-100); padding: .15em .5em; border-radius: 3px; }

/* Architecture */
.arch { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.arch-list { list-style: none; margin: 0; padding: 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.arch-list li { display: grid; grid-template-columns: 140px 1fr; gap: 1rem; padding: 14px 18px; border-top: 1px solid var(--border); font-size: .88rem; color: var(--graphite-700); }
.arch-list li:first-child { border-top: 0; }
.arch-list span { font-family: var(--mono); font-weight: 600; color: var(--green-800); font-size: .82rem; }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan { background: var(--white); border: 1px solid var(--border); border-radius: 10px; padding: 28px; display: flex; flex-direction: column; position: relative; }
.plan h3 { font-size: 1.1rem; color: var(--green-900); }
.price { margin: 0; color: var(--muted); font-size: .88rem; }
.price span { font-size: 2rem; font-weight: 700; color: var(--graphite-950); font-family: var(--mono); letter-spacing: -.02em; margin-right: .2rem; }
.plan-desc { color: var(--graphite-700); font-size: .9rem; }
.plan ul { padding: 0; margin: 0 0 1.5rem; list-style: none; display: grid; gap: .4rem; font-size: .88rem; flex: 1; }
.plan li::before { content: '✓ '; color: var(--green-600); font-weight: 700; }
.plan .btn { justify-content: center; }
.plan-featured { border: 2px solid var(--green-700); box-shadow: var(--shadow); }
.plan-flag { position: absolute; top: -12px; left: 24px; margin: 0; background: var(--amber-500); color: var(--graphite-950); font-size: .72rem; font-weight: 700; padding: .2em .7em; border-radius: 3px; text-transform: uppercase; letter-spacing: .05em; }

/* Request */
.request { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.ticks { padding: 0; list-style: none; display: grid; gap: .5rem; color: var(--graphite-700); }
.ticks li::before { content: '✓ '; color: var(--green-600); font-weight: 700; }
.card-form { border: 1px solid var(--border); border-radius: 10px; padding: 24px; background: var(--white); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-foot { display: flex; align-items: center; gap: 1rem; margin-top: 18px; flex-wrap: wrap; }
.form-status { margin: 0; font-size: .88rem; }
.form-status.ok { color: var(--green-700); }
.form-status.err { color: var(--red-700); }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--border); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--green-950); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::after { content: '+'; font-family: var(--mono); color: var(--green-700); }
.faq details[open] summary::after { content: '−'; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { color: var(--graphite-700); margin: .6rem 0 0; }

/* Footer */
.site-footer { background: var(--green-950); color: var(--green-200); padding: 48px 0 32px; font-size: .88rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer-grid strong { display: block; color: var(--white); margin-bottom: .5rem; }
.footer-grid a { display: block; color: var(--green-200); text-decoration: none; margin: .25rem 0; }
.footer-grid a:hover { color: var(--white); }
.footer-note { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; margin: 0; font-size: .78rem; color: #7fa596; }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .arch, .request { grid-template-columns: 1fr; }
  .feature-grid, .usecase-grid { grid-template-columns: 1fr 1fr; }
  .pipeline { grid-template-columns: repeat(3, 1fr); }
  .pipeline li::after { display: none; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; }
  .demo-panel { grid-template-columns: 1fr; }
  .strip-grid { grid-template-columns: 1fr 1fr; }
  .strip-grid > div:nth-child(3) { border-left: 0; padding-left: 0; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); flex-direction: column; align-items: stretch; padding: 16px; gap: .8rem; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-links .btn { justify-content: center; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .feature-grid, .usecase-grid, .form-grid, .footer-grid, .strip-grid { grid-template-columns: 1fr; }
  .strip-grid > div { border-left: 0; padding-left: 0; padding-right: 0; border-top: 1px solid var(--border); }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .demo-stats { grid-template-columns: 1fr 1fr; }
  .arch-list li { grid-template-columns: 1fr; gap: .2rem; }
  .demo-panel { padding: 16px; }
}