/* ============================================================
   OwnAI — Design tokens & landing page styles
   Static, hand-written CSS. No framework. Phase 1.
   ============================================================ */

:root {
  /* Colors */
  --c-bg-default: #FFFFFF;
  --c-bg-elevated: #F8FAFC;
  --c-bg-inverse: #0B1220;
  --c-bg-inverse-2: #111A2E;
  --c-fg-default: #0B1220;
  --c-fg-muted: #475569;
  --c-fg-subtle: #64748B;
  --c-fg-inverse: #F8FAFC;
  --c-fg-inverse-muted: #94A3B8;
  --c-border-default: #E2E8F0;
  --c-border-strong: #94A3B8;
  --c-border-inverse: #1E293B;
  --c-border-inverse-strong: #334155;
  --c-accent-pharma: #2563EB;
  --c-accent-nbfc: #7C3AED;
  --c-accent: var(--c-accent-pharma); /* vertical-tweakable */
  --c-positive: #16A34A;
  --c-positive-bg: #DCFCE7;
  --c-warning: #D97706;
  --c-risk: #DC2626;
  --c-focus: #2563EB;

  /* Type scale */
  --t-xs: 12px;     --lh-xs: 16px;
  --t-sm: 14px;     --lh-sm: 20px;
  --t-base: 16px;   --lh-base: 24px;
  --t-lg: 18px;     --lh-lg: 28px;
  --t-xl: 20px;     --lh-xl: 28px;
  --t-2xl: 24px;    --lh-2xl: 32px;
  --t-3xl: 30px;    --lh-3xl: 36px;
  --t-4xl: 36px;    --lh-4xl: 40px;
  --t-5xl: 48px;    --lh-5xl: 52px;
  --t-6xl: 60px;    --lh-6xl: 64px;
  --t-7xl: 72px;    --lh-7xl: 76px;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-6: 24px;
  --s-8: 32px;
  --s-12: 48px;
  --s-16: 64px;
  --s-24: 96px;
  --s-32: 128px;

  /* Radii */
  --r-input: 4px;
  --r-btn: 8px;
  --r-card: 12px;
  --r-modal: 16px;
  --r-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(11,18,32,0.06);
  --shadow-md: 0 4px 8px rgba(11,18,32,0.08);
  --shadow-lg: 0 12px 24px rgba(11,18,32,0.10);

  /* Layout */
  --container: 1200px;
  --container-narrow: 880px;

  /* Motion */
  --tx: 150ms ease-out;
  --tx-layout: 250ms ease-in-out;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: var(--t-base);
  line-height: var(--lh-base);
  color: var(--c-fg-default);
  background: var(--c-bg-default);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; }
a { color: inherit; }
table { border-collapse: collapse; }

/* Tabular numerals utility */
.tnum { font-variant-numeric: tabular-nums; }

/* ===== Focus ===== */
:focus-visible {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  padding: 10px 14px;
  border-radius: var(--r-btn);
  z-index: 200;
  text-decoration: none;
  font-weight: 600;
  font-size: var(--t-sm);
}
.skip-link:focus-visible { top: 12px; }

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}
@media (min-width: 1024px) {
  .container { padding-inline: 32px; }
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: inherit;
  text-wrap: balance;
}
h1 {
  font-size: var(--t-5xl);
  line-height: var(--lh-5xl);
}
@media (min-width: 768px)  { h1 { font-size: var(--t-6xl); line-height: var(--lh-6xl); } }
@media (min-width: 1024px) { h1 { font-size: var(--t-7xl); line-height: var(--lh-7xl); } }
h2 {
  font-size: var(--t-3xl);
  line-height: var(--lh-3xl);
}
@media (min-width: 768px) { h2 { font-size: var(--t-4xl); line-height: var(--lh-4xl); } }
h3 { font-size: var(--t-2xl); line-height: var(--lh-2xl); }
h4 { font-size: var(--t-lg); line-height: var(--lh-lg); }
p { margin: 0; text-wrap: pretty; }
small, .small { font-size: var(--t-sm); line-height: var(--lh-sm); color: var(--c-fg-muted); }
.eyebrow {
  font-size: var(--t-xs);
  line-height: var(--lh-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--c-fg-muted);
}
.eyebrow.accent { color: var(--c-accent); }
.lede {
  font-size: var(--t-lg);
  line-height: var(--lh-lg);
  color: var(--c-fg-muted);
  text-wrap: pretty;
}
@media (min-width: 768px) {
  .lede { font-size: var(--t-xl); line-height: var(--lh-xl); }
}
code, .mono {
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--r-btn);
  font-weight: 600;
  font-size: var(--t-sm);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--tx), color var(--tx), border-color var(--tx), transform var(--tx);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-fg-default);
  color: var(--c-fg-inverse);
  border-color: var(--c-fg-default);
}
.btn-primary:hover { transform: translateY(-1px); background: #1e2a44; border-color: #1e2a44; }
.btn-primary.on-dark {
  background: var(--c-fg-inverse);
  color: var(--c-fg-default);
  border-color: var(--c-fg-inverse);
}
.btn-primary.on-dark:hover { background: #FFFFFF; }
.btn-secondary {
  background: transparent;
  color: var(--c-fg-default);
  border-color: var(--c-border-strong);
}
.btn-secondary:hover { border-color: var(--c-fg-default); transform: translateY(-1px); }
.btn-secondary.on-dark {
  color: var(--c-fg-inverse);
  border-color: rgba(248,250,252,0.32);
}
.btn-secondary.on-dark:hover { border-color: var(--c-fg-inverse); background: rgba(248,250,252,0.04); }
.btn-ghost {
  background: transparent; color: var(--c-fg-default); border: none; padding: 8px 10px;
}
.btn .icon-r { transition: transform var(--tx); }
.btn:hover .icon-r { transform: translateX(2px); }

@media (prefers-reduced-motion: reduce) {
  .btn, .btn .icon-r { transition: none; }
  .btn:hover { transform: none; }
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--tx), border-color var(--tx), box-shadow var(--tx);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom-color: var(--c-border-default);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-block: 14px;
}
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-decoration: none;
  color: inherit;
}
.brand-mark {
  display: flex; align-items: baseline; gap: 6px;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
}
.brand-mark::before {
  content: "";
  display: inline-block;
  width: 10px; height: 10px;
  background: var(--c-accent);
  border-radius: 2px;
  transform: translateY(1px);
  margin-right: 2px;
}
.brand-sub {
  font-size: 11px;
  color: var(--c-fg-muted);
  letter-spacing: 0;
  margin-top: 2px;
  font-weight: 500;
}
.nav-links {
  display: none;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
  flex: 1;
}
.nav-links a {
  text-decoration: none;
  color: var(--c-fg-muted);
  padding: 8px 12px;
  font-size: var(--t-sm);
  font-weight: 500;
  border-radius: var(--r-btn);
  transition: color var(--tx), background var(--tx);
}
.nav-links a:hover { color: var(--c-fg-default); background: var(--c-bg-elevated); }
.nav-cta {
  display: none;
  gap: 8px;
  align-items: center;
}
.nav-cta a.btn-ghost {
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--c-fg-muted);
}
.nav-cta a.btn-ghost:hover { color: var(--c-fg-default); }
.nav-toggle {
  display: inline-flex;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--c-border-default);
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border-radius: var(--r-btn);
  cursor: pointer;
}
@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta { display: flex; }
  .nav-toggle { display: none; }
}

/* Mobile drawer */
.drawer {
  position: fixed; inset: 0 0 0 auto;
  width: min(360px, 88vw);
  background: var(--c-bg-default);
  border-left: 1px solid var(--c-border-default);
  transform: translateX(100%);
  transition: transform var(--tx-layout);
  z-index: 150;
  display: flex; flex-direction: column;
  padding: 16px;
}
.drawer.is-open { transform: translateX(0); }
.drawer-overlay {
  position: fixed; inset: 0; background: rgba(11,18,32,0.45);
  opacity: 0; pointer-events: none;
  transition: opacity var(--tx-layout);
  z-index: 140;
}
.drawer-overlay.is-open { opacity: 1; pointer-events: auto; }
.drawer-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 16px; border-bottom: 1px solid var(--c-border-default);
  margin-bottom: 16px;
}
.drawer-links { list-style: none; padding: 0; margin: 0; flex: 1; }
.drawer-links a {
  display: block;
  padding: 14px 8px;
  text-decoration: none;
  color: var(--c-fg-default);
  font-weight: 500;
  border-bottom: 1px solid var(--c-border-default);
}
.drawer-foot { padding-top: 16px; display: grid; gap: 8px; }

/* ===== Sections ===== */
section { scroll-margin-top: 72px; }
.section {
  padding-block: 64px;
}
@media (min-width: 1024px) {
  .section { padding-block: 96px; }
}
.section-inverse {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
}
.section-elevated {
  background: var(--c-bg-elevated);
}
.section-header {
  max-width: 720px;
  margin-bottom: 48px;
}
.section-header.center { margin-inline: auto; text-align: center; }
.section-header p.lede { margin-top: 12px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  overflow: hidden;
  isolation: isolate;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(148,163,184,0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148,163,184,0.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 30%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 30%, black 0%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid;
  gap: 48px;
  padding-block: 80px;
  grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0,1.05fr) minmax(0,0.95fr);
    gap: 64px;
    padding-block: 120px;
  }
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--c-border-inverse-strong);
  border-radius: var(--r-pill);
  font-size: var(--t-xs);
  letter-spacing: 0.04em;
  color: var(--c-fg-inverse-muted);
  margin-bottom: 24px;
  background: rgba(248,250,252,0.02);
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-positive);
  box-shadow: 0 0 0 4px rgba(22,163,74,0.18);
}
.hero-eyebrow .tag {
  background: var(--c-bg-inverse-2);
  padding: 2px 8px;
  border-radius: var(--r-pill);
  font-weight: 600;
  color: var(--c-fg-inverse);
}
.hero h1 { color: var(--c-fg-inverse); }
.hero h1 .accent {
  color: var(--c-accent);
}
.hero h1 .accent.pos { color: var(--c-positive); }
.hero-sub {
  margin-top: 24px;
  color: var(--c-fg-inverse-muted);
  font-size: var(--t-lg); line-height: var(--lh-lg);
  max-width: 56ch;
}
@media (min-width: 768px) {
  .hero-sub { font-size: var(--t-xl); line-height: var(--lh-xl); }
}
.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}
@media (min-width: 540px) {
  .hero-cta { flex-direction: row; align-items: center; flex-wrap: wrap; }
}
.hero-trust {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-border-inverse);
  border-radius: var(--r-pill);
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--c-fg-inverse);
  background: rgba(248,250,252,0.02);
}
.trust-badge .icon { color: var(--c-positive); }
@media (max-width: 767px) {
  /* mobile: hide all but first badge to honor "1 trust signal above fold" */
  .hero-trust .trust-badge:nth-child(n+2) { display: none; }
}

/* ===== Architecture diagram ===== */
.arch {
  position: relative;
  border: 1px solid var(--c-border-inverse);
  border-radius: var(--r-card);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  padding: 20px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
}
.arch-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px;
  color: var(--c-fg-inverse-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.arch-head .dots { display: flex; gap: 6px; }
.arch-head .dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-border-inverse-strong);
}
.arch-svg { width: 100%; height: auto; }

/* ===== Cards ===== */
.card {
  background: var(--c-bg-default);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 24px;
  transition: border-color var(--tx), transform var(--tx);
}
@media (max-width: 767px) { .card { padding: 16px; } }
.card-elevated {
  background: var(--c-bg-elevated);
}
.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}
.card-link:hover {
  border-color: var(--c-fg-default);
  transform: translateY(-2px);
}
@media (prefers-reduced-motion: reduce) {
  .card-link:hover { transform: none; }
}

/* Problem cards */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; gap: 24px; }
}
.problem-card { padding: 32px; }
@media (max-width: 767px) { .problem-card { padding: 24px; } }
.problem-card .meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-default);
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-fg-muted);
  margin-bottom: 16px;
}
.problem-card .meta.risk { color: var(--c-risk); border-color: #FEE2E2; background: #FEF2F2; }
.problem-card .meta.warn { color: var(--c-warning); border-color: #FEF3C7; background: #FFFBEB; }
.problem-card h3 { margin-bottom: 12px; }
.problem-card .stat {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--c-border-default);
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.problem-card .stat .n {
  font-size: var(--t-3xl);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.problem-card .stat .n.risk { color: var(--c-risk); }
.problem-card .stat .l {
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
}
.problem-card .src {
  margin-top: 16px;
  font-size: var(--t-xs);
  color: var(--c-fg-subtle);
}

/* ===== How it works steps ===== */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  position: relative;
}
@media (min-width: 1024px) {
  .steps {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
  }
}
.step {
  background: var(--c-bg-default);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  padding: 28px;
  position: relative;
}
@media (min-width: 1024px) {
  .step { border-radius: 0; }
  .step:first-child { border-top-left-radius: var(--r-card); border-bottom-left-radius: var(--r-card); }
  .step:last-child  { border-top-right-radius: var(--r-card); border-bottom-right-radius: var(--r-card); border-left: none; }
  .step:not(:first-child) { border-left: none; }
}
.step-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  font-family: "JetBrains Mono", monospace;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-pill);
  color: var(--c-fg-muted);
  background: var(--c-bg-elevated);
  margin-bottom: 20px;
}
.step h3 { margin-bottom: 12px; font-size: var(--t-xl); line-height: var(--lh-xl); }
.step p { color: var(--c-fg-muted); }
.step .step-tag {
  margin-top: 20px;
  font-size: var(--t-xs);
  color: var(--c-fg-subtle);
  font-family: "JetBrains Mono", monospace;
}
@media (min-width: 1024px) {
  .step::after {
    content: "";
    position: absolute;
    right: -1px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 1px;
    background: var(--c-border-default);
    z-index: 2;
  }
  .step:last-child::after { display: none; }
  .step::before {
    content: "";
    position: absolute;
    right: -7px;
    top: 50%;
    transform: translateY(-50%);
    width: 13px;
    height: 13px;
    background: var(--c-bg-default);
    border: 1px solid var(--c-border-default);
    border-left: none;
    border-bottom: none;
    transform: translateY(-50%) rotate(45deg);
    z-index: 3;
  }
  .step:last-child::before { display: none; }
}

/* ===== Social proof / stack logos ===== */
.proof {
  text-align: center;
}
.proof h4 {
  font-weight: 500;
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.proof-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (min-width: 640px) { .proof-row { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .proof-row { grid-template-columns: repeat(6, 1fr); gap: 24px; } }
.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px 12px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  font-family: "JetBrains Mono", monospace;
  background: var(--c-bg-default);
  text-align: center;
}
.logo .l-name {
  font-weight: 600;
  color: var(--c-fg-default);
  font-size: var(--t-sm);
  letter-spacing: -0.01em;
}
.logo .l-tag {
  font-size: 10px;
  color: var(--c-fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.proof-note { margin-top: 24px; color: var(--c-fg-muted); font-size: var(--t-sm); max-width: 720px; margin-inline: auto; }

/* ===== Vertical solution cards ===== */
.vert-card {
  padding: 32px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 3px solid var(--c-accent-pharma);
}
.vert-card.nbfc { border-top-color: var(--c-accent-nbfc); }
.vert-card .eyebrow.accent { color: var(--c-accent-pharma); }
.vert-card.nbfc .eyebrow.accent { color: var(--c-accent-nbfc); }
.vert-card h3 { font-size: var(--t-2xl); }
@media (min-width: 768px) { .vert-card h3 { font-size: var(--t-3xl); line-height: var(--lh-3xl); } }
.vert-card ul {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: 1fr; gap: 4px;
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
}
@media (min-width: 640px) { .vert-card ul { grid-template-columns: 1fr 1fr; gap: 6px 24px; } }
.vert-card li {
  display: flex; align-items: flex-start; gap: 8px;
  padding-block: 4px;
}
.vert-card li::before {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--c-fg-muted);
  margin-top: 9px;
  flex-shrink: 0;
}
.vert-card .vert-cta {
  margin-top: auto;
  padding-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  text-decoration: none;
  color: var(--c-accent-pharma);
  font-size: var(--t-sm);
}
.vert-card.nbfc .vert-cta { color: var(--c-accent-nbfc); }
.vert-card .vert-cta:hover .icon-r { transform: translateX(2px); }

/* ===== Numbers strip ===== */
.numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-border-inverse);
  border: 1px solid var(--c-border-inverse);
  border-radius: var(--r-card);
  overflow: hidden;
}
@media (min-width: 1024px) {
  .numbers { grid-template-columns: repeat(4, 1fr); }
}
.number-cell {
  background: var(--c-bg-inverse);
  padding: 32px 24px;
}
.number-cell .n {
  font-size: var(--t-5xl);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--c-fg-inverse);
}
@media (min-width: 1024px) {
  .number-cell .n { font-size: var(--t-6xl); line-height: 1; }
}
.number-cell .n .u {
  color: var(--c-fg-inverse-muted);
  font-size: 0.5em;
  font-weight: 600;
  margin-left: 4px;
  letter-spacing: 0;
}
.number-cell .l {
  margin-top: 12px;
  font-size: var(--t-sm);
  line-height: var(--lh-sm);
  color: var(--c-fg-inverse-muted);
  max-width: 22ch;
}

/* ===== ROI teaser ===== */
.roi {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 1024px) {
  .roi { grid-template-columns: 1fr 1.15fr; gap: 64px; }
}
.roi-preview {
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  background: var(--c-bg-default);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.roi-preview .row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: var(--t-sm);
  padding-block: 10px;
  border-bottom: 1px solid var(--c-border-default);
}
.roi-preview .row:last-of-type { border-bottom: none; }
.roi-preview .row .l { color: var(--c-fg-muted); }
.roi-preview .row .v { font-weight: 600; }
.roi-preview .row.savings { padding-top: 16px; padding-bottom: 4px; margin-top: 8px; border-top: 2px solid var(--c-fg-default); border-bottom: none; }
.roi-preview .row.savings .v { color: var(--c-positive); font-size: var(--t-xl); }
.roi-bars {
  margin-top: 16px;
  display: grid; gap: 10px;
}
.roi-bar { display: grid; grid-template-columns: 120px 1fr 88px; gap: 12px; align-items: center; font-size: var(--t-sm); }
.roi-bar .l { color: var(--c-fg-muted); }
.roi-bar .v { font-weight: 600; text-align: right; }
.roi-bar .track { height: 10px; border-radius: var(--r-pill); background: var(--c-bg-elevated); overflow: hidden; }
.roi-bar .fill { height: 100%; border-radius: var(--r-pill); }
.roi-bar.cloud .fill { background: var(--c-risk); width: 100%; }
.roi-bar.ownai .fill { background: var(--c-positive); width: 24%; }

/* ===== Stack grid ===== */
.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (min-width: 768px)  { .stack-grid { grid-template-columns: repeat(3, 1fr); } }
.stack-tile {
  padding: 20px;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
}
.stack-tile .nm {
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  font-size: var(--t-sm);
  margin-bottom: 6px;
}
.stack-tile .role {
  font-size: var(--t-sm);
  color: var(--c-fg-muted);
  line-height: 1.45;
}
.stack-tile .lic {
  margin-top: 12px;
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-pill);
  color: var(--c-fg-muted);
  background: var(--c-bg-default);
}

/* ===== Compliance strip ===== */
.comp-grid {
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 768px)  { .comp-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .comp-grid { grid-template-columns: repeat(4, 1fr); } }
.comp-card {
  padding: 24px;
  background: var(--c-bg-default);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  display: flex; flex-direction: column; gap: 12px;
}
.comp-card .check {
  width: 32px; height: 32px;
  border-radius: var(--r-btn);
  background: var(--c-positive-bg);
  color: var(--c-positive);
  display: inline-flex; align-items: center; justify-content: center;
}
.comp-card .ttl { font-weight: 700; font-size: var(--t-base); }
.comp-card .body { color: var(--c-fg-muted); font-size: var(--t-sm); line-height: var(--lh-sm); }

/* ===== Pledge block ===== */
.pledges {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 768px) { .pledges { grid-template-columns: 1fr 1fr; gap: 16px; } }
.pledge {
  display: flex; gap: 16px;
  padding: 24px;
  border: 1px solid var(--c-border-inverse);
  border-radius: var(--r-card);
  background: rgba(255,255,255,0.02);
}
.pledge .icon-wrap {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: var(--r-btn);
  border: 1px solid var(--c-border-inverse-strong);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--c-risk);
}
.pledge p { color: var(--c-fg-inverse); font-weight: 500; font-size: var(--t-base); line-height: 1.4; }
.pledge p .neg { color: var(--c-fg-inverse-muted); }

/* ===== FAQ ===== */
.faq-list {
  border-top: 1px solid var(--c-border-default);
}
.faq-item {
  border-bottom: 1px solid var(--c-border-default);
}
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  color: inherit;
  font-weight: 600;
  font-size: var(--t-lg);
  line-height: var(--lh-lg);
}
.faq-q .chev {
  flex-shrink: 0;
  transition: transform var(--tx);
  color: var(--c-fg-muted);
}
.faq-item.is-open .faq-q .chev { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--tx-layout);
}
.faq-a-inner {
  padding-bottom: 24px;
  padding-right: 48px;
  color: var(--c-fg-muted);
  font-size: var(--t-base);
  line-height: var(--lh-base);
  max-width: 80ch;
}
@media (prefers-reduced-motion: reduce) {
  .faq-a { transition: none; }
}

/* ===== Final CTA band ===== */
.final-cta {
  background:
    radial-gradient(ellipse at 80% 0%, rgba(37,99,235,0.18), transparent 60%),
    radial-gradient(ellipse at 0% 100%, rgba(124,58,237,0.12), transparent 60%),
    var(--c-bg-inverse);
  color: var(--c-fg-inverse);
  text-align: center;
}
.final-cta h2 { color: var(--c-fg-inverse); }
.final-cta .lede { color: var(--c-fg-inverse-muted); max-width: 64ch; margin-inline: auto; margin-top: 16px; }
.final-cta .ctas {
  margin-top: 32px;
  display: flex; flex-direction: column; gap: 12px;
  align-items: center; justify-content: center;
}
@media (min-width: 540px) { .final-cta .ctas { flex-direction: row; flex-wrap: wrap; } }
.final-cta .contact {
  margin-top: 24px;
  font-size: var(--t-sm);
  color: var(--c-fg-inverse-muted);
  font-family: "JetBrains Mono", monospace;
}
.final-cta .contact a { color: var(--c-fg-inverse); text-decoration: none; }
.final-cta .contact a:hover { color: #fff; text-decoration: underline; }
.final-cta .trust-row {
  margin-top: 32px;
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
}

/* ===== Footer ===== */
.footer {
  background: var(--c-bg-inverse);
  color: var(--c-fg-inverse-muted);
  border-top: 1px solid var(--c-border-inverse);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-block: 64px;
}
@media (min-width: 768px) { .footer-inner { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; } }
.footer h5 {
  font-size: var(--t-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-fg-inverse);
  font-weight: 600;
  margin: 0 0 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer a { color: var(--c-fg-inverse-muted); text-decoration: none; font-size: var(--t-sm); }
.footer a:hover { color: var(--c-fg-inverse); }
.footer-brand .brand { color: var(--c-fg-inverse); margin-bottom: 12px; }
.footer-legal {
  font-size: var(--t-xs);
  line-height: 1.7;
  color: var(--c-fg-inverse-muted);
}
.footer-legal .k { color: var(--c-fg-inverse); font-weight: 600; margin-right: 4px; }
.footer-bottom {
  border-top: 1px solid var(--c-border-inverse);
  padding-block: 20px;
  font-size: var(--t-xs);
  color: var(--c-fg-inverse-muted);
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
}
.footer-bottom ul { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-li {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border: 1px solid var(--c-border-inverse-strong);
  border-radius: var(--r-btn);
  color: var(--c-fg-inverse-muted);
}
.footer-li:hover { color: var(--c-fg-inverse); border-color: var(--c-fg-inverse-muted); }

/* ===== Tweaks panel ===== */
.tweaks {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 280px;
  background: var(--c-bg-default);
  border: 1px solid var(--c-border-default);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-lg);
  z-index: 130;
  font-size: var(--t-sm);
  display: none;
  overflow: hidden;
}
.tweaks.is-open { display: block; }
.tweaks-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-border-default);
  background: var(--c-bg-elevated);
}
.tweaks-title { font-weight: 700; font-size: var(--t-sm); }
.tweaks-body { padding: 16px; display: grid; gap: 16px; }
.tweak-group .lbl {
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-fg-muted);
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}
.seg { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; padding: 3px; background: var(--c-bg-elevated); border: 1px solid var(--c-border-default); border-radius: var(--r-btn); }
.seg button {
  background: transparent;
  border: none;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: var(--t-xs);
  font-weight: 600;
  color: var(--c-fg-muted);
  cursor: pointer;
}
.seg button.is-active {
  background: var(--c-bg-default);
  color: var(--c-fg-default);
  box-shadow: var(--shadow-sm);
}
.tweak-close {
  background: transparent; border: none; cursor: pointer; padding: 4px;
  color: var(--c-fg-muted);
}

/* Utilities */
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}