/* ============================================================
   AI for Business - shared base stylesheet
   Canonical chrome + tokens + components, identical on every page.
   Ported verbatim from the approved v3 mockups; the only change is
   self-hosted @font-face in place of the Google Fonts @import.
   Page-specific rules live in each page's own <style> block.
   ============================================================ */

/* ---------- 0. SELF-HOSTED FONTS ---------- */
@font-face{
  font-family:'Anton';font-style:normal;font-weight:400;font-display:swap;
  src:url('/fonts/anton-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Anton';font-style:normal;font-weight:400;font-display:swap;
  src:url('/fonts/anton-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:'Inter';font-style:normal;font-weight:100 900;font-display:swap;
  src:url('/fonts/inter-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Inter';font-style:normal;font-weight:100 900;font-display:swap;
  src:url('/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

/* ---------- 1. TOKENS ---------- */
:root{
  /* color */
  --oh-bg:#FAFAF7;            /* page background */
  --oh-surface:#FFFFFF;       /* cards, panels, table body */
  --oh-ink:#0F172A;           /* primary text, dark chrome */
  --oh-ink-2:#64748B;         /* secondary text */
  --oh-ink-3:#94A3B8;         /* tertiary text on dark chrome */
  --oh-violet:#7C3AED;        /* the accent */
  --oh-violet-deep:#6D28D9;   /* accent hover / placeholder text */
  --oh-magenta:#C026D3;       /* gradient end only, never alone */
  --oh-grad:linear-gradient(115deg,#7C3AED 0%,#9333EA 55%,#C026D3 100%);
  --oh-tint-violet:#F5F1FE;   /* pro-tip callout, chip hover */
  --oh-tint-slate:#F1F5F9;    /* honest-limits callout */
  --oh-border:#E2E8F0;        /* hairlines everywhere */
  --oh-on-accent:#FAFAF7;     /* text on violet / gradient / dark */

  /* type */
  --oh-font-display:'Anton','Arial Narrow',sans-serif;
  --oh-font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --oh-font-mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --oh-size-h1:clamp(48px,7.8vw,86px);
  --oh-size-dek:24px;
  --oh-size-h2:34px;
  --oh-size-h3:24px;
  --oh-size-body:21px;
  --oh-size-caption:16.5px;
  --oh-size-label:13.5px;

  /* shape + depth */
  --oh-radius-sm:8px;
  --oh-radius:12px;
  --oh-radius-lg:16px;
  --oh-pill:999px;
  --oh-shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
  --oh-shadow-violet:0 8px 24px rgba(124,58,237,.28);

  /* layout */
  --oh-w-wide:1100px;         /* grids, chrome */
  --oh-w-prose:720px;         /* article prose */
  --oh-w-list:680px;          /* hub resource list */
}

/* ---------- 2. BASE ---------- */
*,*::before,*::after{box-sizing:border-box}
body.oh-page{
  margin:0;background:var(--oh-bg);color:var(--oh-ink);
  font-family:var(--oh-font-body);font-size:var(--oh-size-body);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
.oh-container{max-width:var(--oh-w-wide);margin:0 auto;padding:0 24px}
.oh-prose{max-width:var(--oh-w-prose);margin:0 auto;padding:0 24px}
.oh-page a{text-decoration:none}
.oh-page a:not([class]){color:var(--oh-violet)} /* prose links only; components set their own color */
.oh-page :focus-visible{outline:2px solid var(--oh-violet);outline-offset:2px;border-radius:4px}

/* ---------- 3. TYPE SCALE ---------- */
.oh-h1{
  font-family:var(--oh-font-display);font-weight:400;
  font-size:var(--oh-size-h1);line-height:1.04;letter-spacing:.01em;
  text-transform:uppercase;margin:0;
}
.oh-dek{
  font-size:var(--oh-size-dek);line-height:1.55;font-weight:400;margin:0;
}
.oh-h2{
  font-size:var(--oh-size-h2);line-height:1.25;font-weight:800;
  letter-spacing:-.01em;color:var(--oh-ink);margin:0 0 16px;
}
.oh-h3{
  font-size:var(--oh-size-h3);line-height:1.35;font-weight:700;
  color:var(--oh-ink);margin:0 0 12px;
}
.oh-body{font-size:var(--oh-size-body);line-height:1.65;color:var(--oh-ink);margin:0 0 20px}
.oh-body strong{font-weight:700}
.oh-caption{font-size:var(--oh-size-caption);line-height:1.5;color:var(--oh-ink-2);margin:0}
.oh-label{
  font-size:var(--oh-size-label);font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--oh-violet);
}

/* ---------- 4. BADGES ---------- */
.oh-badge{ /* list rows, card badges, eyebrows on light */
  display:inline-block;font-size:var(--oh-size-label);font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--oh-violet);
}
.oh-badge-outline{ /* hero band pill */
  display:inline-block;font-size:var(--oh-size-label);font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--oh-on-accent);
  border:1px solid rgba(250,250,247,.45);border-radius:var(--oh-pill);
  padding:6px 14px;
}

/* ---------- 5. STICKY NAV ---------- */
.oh-nav{
  position:sticky;top:0;z-index:50;background:var(--oh-ink);
}
.oh-nav-inner{
  max-width:var(--oh-w-wide);margin:0 auto;padding:0 24px;height:58px;
  display:flex;align-items:center;gap:28px;
}
.oh-wordmark{
  display:flex;align-items:center;gap:10px;color:var(--oh-on-accent);
  font-family:var(--oh-font-display);font-size:19.5px;letter-spacing:.06em;
  text-transform:uppercase;text-decoration:none;margin-right:auto;
}
.oh-wordmark-mark{height:34px;width:auto;flex:none;display:block}
.oh-nav-link{
  color:#CBD5E1;font-size:17.5px;font-weight:500;text-decoration:none;
}
.oh-nav-link:hover{color:var(--oh-on-accent)}
.oh-nav-pill{
  background:var(--oh-grad);color:var(--oh-on-accent);font-size:16px;font-weight:700;
  padding:8px 18px;border-radius:var(--oh-pill);text-decoration:none;white-space:nowrap;
}
.oh-nav-pill:hover{filter:brightness(1.08)}
.oh-nav-pill.is-current{ /* this page IS the pill's destination */
  box-shadow:0 0 0 2px var(--oh-ink),0 0 0 3.5px rgba(250,250,247,.55);
}

/* ---------- 6. ARTICLE HERO BAND ---------- */
.oh-hero{background:var(--oh-grad);color:var(--oh-on-accent);padding:64px 0 72px}
.oh-hero-inner{max-width:880px;margin:0 auto;padding:0 24px;text-align:center}
.oh-hero-byline{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
  gap:10px;margin-bottom:28px;font-size:17px;color:rgba(250,250,247,.9);
}
.oh-social-pill{
  display:inline-block;font-size:15.5px;font-weight:600;color:var(--oh-on-accent);
  border:1px solid rgba(250,250,247,.4);border-radius:var(--oh-pill);
  padding:5px 13px;text-decoration:none;
}
.oh-social-pill:hover{background:rgba(250,250,247,.14)}
.oh-hero .oh-badge-outline{margin-bottom:22px}
.oh-hero .oh-h1{color:var(--oh-on-accent);margin:0 0 22px}
.oh-hero .oh-dek{color:rgba(250,250,247,.92);max-width:620px;margin:0 auto}

/* ---------- 7. BUTTONS ---------- */
.oh-btn{
  display:inline-block;font-family:var(--oh-font-body);font-size:19px;font-weight:700;
  padding:17px 32px;border-radius:var(--oh-pill);text-decoration:none;
  border:0;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease;
}
.oh-btn--primary{background:var(--oh-grad);color:var(--oh-on-accent);box-shadow:var(--oh-shadow-violet)}
.oh-btn--primary:hover{filter:brightness(1.07);transform:translateY(-1px)}
.oh-btn--secondary{
  background:transparent;color:var(--oh-ink);border:1.5px solid var(--oh-ink);
  padding:12.5px 26.5px;
}
.oh-btn--secondary:hover{background:var(--oh-ink);color:var(--oh-on-accent)}
.oh-btn--invert{background:var(--oh-surface);color:var(--oh-violet-deep);box-shadow:0 8px 24px rgba(15,23,42,.18)}
.oh-btn--invert:hover{transform:translateY(-1px)}
.oh-btn--caps{text-transform:uppercase;letter-spacing:.05em;font-size:18px}
.oh-textlink{
  display:inline-block;color:var(--oh-violet);font-size:19px;font-weight:600;text-decoration:none;
}
.oh-textlink .oh-arrow{display:inline-block;transition:transform .12s ease}
.oh-textlink:hover{text-decoration:underline;text-underline-offset:3px}
.oh-textlink:hover .oh-arrow{transform:translateX(3px)}

/* ---------- 8. FILTER CHIPS + SEARCH + COUNTER ---------- */
.oh-chip-axis{
  font-size:var(--oh-size-label);font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--oh-ink-2);margin:0 0 10px;
}
.oh-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.oh-chip{
  display:inline-block;background:var(--oh-surface);color:var(--oh-ink);
  border:1px solid var(--oh-border);border-radius:var(--oh-pill);
  font-size:16.5px;font-weight:600;padding:9px 19px;cursor:pointer;
  transition:border-color .12s ease,background .12s ease,color .12s ease;
  font-family:var(--oh-font-body);
}
.oh-chip:hover,.oh-chip.is-hover{border-color:var(--oh-violet);color:var(--oh-violet-deep);background:var(--oh-tint-violet)}
.oh-chip.is-active{background:var(--oh-grad);border-color:transparent;color:var(--oh-on-accent)}
.oh-search{
  display:block;width:min(440px,100%);background:var(--oh-surface);
  border:1px solid var(--oh-border);border-radius:var(--oh-radius-sm);
  font-family:var(--oh-font-body);font-size:18.5px;color:var(--oh-ink);
  padding:12px 16px;margin:4px 0 14px;
}
.oh-search::placeholder{color:var(--oh-ink-2)}
.oh-search:focus{outline:none;border-color:var(--oh-violet);box-shadow:0 0 0 3px rgba(124,58,237,.15)}
.oh-counter{font-size:var(--oh-size-caption);color:var(--oh-ink-2);margin:0 0 8px}
.oh-counter strong{color:var(--oh-ink);font-weight:700}

/* ---------- 9. HUB LIST ROWS ---------- */
.oh-list{max-width:var(--oh-w-list);border-top:1px solid var(--oh-border)}
.oh-row{
  display:flex;align-items:center;gap:20px;padding:22px 4px;
  border-bottom:1px solid var(--oh-border);text-decoration:none;
}
.oh-row-main{flex:1;min-width:0}
.oh-row .oh-badge{margin-bottom:6px}
.oh-row-title{
  display:block;font-size:23px;font-weight:700;line-height:1.3;color:var(--oh-ink);
  margin:0 0 4px;transition:color .12s ease;
}
.oh-row-desc{
  display:block;font-size:18px;line-height:1.5;color:var(--oh-ink-2);margin:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.oh-row-arrow{
  flex:none;font-size:20px;color:var(--oh-ink-2);
  transition:transform .12s ease,color .12s ease;
}
.oh-row:hover .oh-row-title{color:var(--oh-violet)}
.oh-row:hover .oh-row-arrow{color:var(--oh-violet);transform:translateX(4px)}

/* ---------- 10. COPY-PROMPT BLOCK ---------- */
.oh-prompt{
  background:var(--oh-surface);border:1px solid var(--oh-border);
  border-radius:var(--oh-radius-lg);overflow:hidden;box-shadow:var(--oh-shadow);
}
.oh-prompt-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;border-bottom:1px solid var(--oh-border);
}
.oh-prompt-label{font-size:15.5px;font-weight:700;color:var(--oh-ink);margin:0}
.oh-copy-btn{
  flex:none;background:var(--oh-surface);border:1px solid var(--oh-border);
  border-radius:var(--oh-radius-sm);font-family:var(--oh-font-body);
  font-size:13.5px;font-weight:600;color:var(--oh-ink);padding:7px 16px;cursor:pointer;
  transition:border-color .12s ease,color .12s ease;
}
.oh-copy-btn:hover{border-color:var(--oh-violet);color:var(--oh-violet-deep)}
.oh-copy-btn.is-done{border-color:var(--oh-violet);background:var(--oh-tint-violet);color:var(--oh-violet-deep)}
.oh-prompt-body{
  margin:0;padding:20px 22px;background:#FCFCFA;
  font-family:var(--oh-font-mono);font-size:14px;line-height:1.75;color:var(--oh-ink);
  white-space:pre-wrap;overflow-x:auto;
  max-height:420px;overflow-y:auto;overscroll-behavior:contain;
  scrollbar-width:thin;scrollbar-color:var(--oh-border) transparent;
}
.oh-prompt-body::-webkit-scrollbar{width:8px}
.oh-prompt-body::-webkit-scrollbar-thumb{background:var(--oh-border);border-radius:4px}
.oh-ph{ /* [BRACKETED PLACEHOLDER] highlight */
  background:rgba(124,58,237,.09);color:var(--oh-violet-deep);
  font-weight:600;border-radius:4px;padding:1px 5px;
}

/* ---------- 11. CALLOUTS ---------- */
.oh-callout{
  border-radius:var(--oh-radius);padding:20px 24px;
  border-left:4px solid var(--oh-violet);background:var(--oh-tint-violet);
}
.oh-callout--limits{border-left-color:var(--oh-ink);background:var(--oh-tint-slate)}
.oh-callout-title{font-size:15.5px;font-weight:700;color:var(--oh-ink);margin:0 0 8px}
.oh-callout p{font-size:15.5px;line-height:1.6;color:var(--oh-ink);margin:0}
.oh-callout ol,.oh-callout ul{font-size:15.5px;line-height:1.6;color:var(--oh-ink);margin:0;padding-left:20px}
.oh-callout li{margin-bottom:4px}
.oh-callout li:last-child{margin-bottom:0}

/* ---------- 12. COMPARISON TABLE ---------- */
.oh-table-wrap{
  overflow-x:auto;border:1px solid var(--oh-border);
  border-radius:var(--oh-radius);background:var(--oh-surface);
}
.oh-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15.5px;line-height:1.5}
.oh-table thead th{
  background:var(--oh-grad);color:var(--oh-on-accent);text-align:left;
  font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:13px 18px;
}
.oh-table tbody td,.oh-table tbody th{
  padding:14px 18px;border-top:1px solid var(--oh-border);
  text-align:left;vertical-align:top;
}
.oh-table tbody th{font-weight:700;color:var(--oh-ink);white-space:nowrap}
.oh-table tbody td{color:var(--oh-ink-2)}
.oh-table tbody td strong{color:var(--oh-ink);font-weight:600}

/* ---------- 13. CONVERSION BAND ---------- */
.oh-cta-band{
  background:var(--oh-grad);border-radius:var(--oh-radius-lg);
  padding:56px 32px;text-align:center;color:var(--oh-on-accent);
}
.oh-cta-title{
  font-family:var(--oh-font-display);font-weight:400;text-transform:uppercase;
  font-size:clamp(28px,4vw,40px);line-height:1.1;letter-spacing:.01em;
  color:var(--oh-on-accent);margin:0 0 16px;
}
.oh-cta-copy{
  font-size:17px;line-height:1.6;color:rgba(250,250,247,.92);
  max-width:560px;margin:0 auto 28px;
}
.oh-cta-band .oh-btn--invert{margin:0}

/* ---------- 14. GET-THE-RESOURCE BLOCK ---------- */
.oh-resource{
  background:var(--oh-surface);border:1px solid var(--oh-border);
  border-radius:var(--oh-radius);padding:22px 26px;
  display:flex;align-items:center;flex-wrap:wrap;gap:14px 28px;
}
.oh-resource-label{
  font-size:var(--oh-size-label);font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--oh-ink-2);margin-right:auto;
}
.oh-resource-link{
  font-size:15.5px;font-weight:600;color:var(--oh-violet);text-decoration:none;
}
.oh-resource-link:hover{text-decoration:underline;text-underline-offset:3px}
.oh-resource-btn{
  display:inline-block;background:var(--oh-grad);color:var(--oh-on-accent);
  font-size:14.5px;font-weight:700;padding:11px 22px;border-radius:var(--oh-pill);
  text-decoration:none;white-space:nowrap;
}
.oh-resource-btn:hover{filter:brightness(1.08)}
.oh-resource-note{font-size:13.5px;color:var(--oh-ink-2);margin:10px 0 0;flex-basis:100%}

/* ---------- 15. FOOTER ---------- */
.oh-footer{background:var(--oh-ink);color:var(--oh-ink-3);margin-top:0}
.oh-footer-inner{
  max-width:var(--oh-w-wide);margin:0 auto;padding:26px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.oh-footer .oh-wordmark{margin-right:0;font-size:14px}
.oh-footer-copy{font-size:13.5px;margin:0}

/* ---------- 16. RESPONSIVE (canonical chrome) ---------- */
@media (max-width:720px){
  .oh-nav-link{display:none}
  .oh-nav-inner{height:54px;gap:12px}
  .oh-wordmark{font-size:14px}
  .oh-nav-pill{font-size:13px;padding:7px 14px}
  .oh-hero{padding:48px 0 56px}
  .oh-h1 br{display:none} /* desktop line breaks never force mobile overflow */
  .oh-cta-band{padding:44px 22px}
  .oh-cta-title br{display:none}
  .oh-row-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .oh-prompt-head{flex-wrap:wrap}
}

/* ---------- 17. GLOBAL PAGE FRAME (sticky footer) ---------- */
body{min-height:100vh;display:flex;flex-direction:column}
.oh-footer{margin-top:auto}

/* ---------- 18. v4 CHROME: deeper bar ink + scaled-up nav (operator feedback) ---------- */
.oh-nav,.oh-footer{background:#0B1220}
.oh-nav-inner{height:86px;gap:32px}
.oh-wordmark{font-size:18.5px}
.oh-nav-link{font-size:15.5px}
.oh-nav-pill{font-size:14.5px;padding:11px 24px}
@media (max-width:720px){
  .oh-nav-inner{height:72px}
  .oh-wordmark{font-size:15px}
  .oh-nav-pill{font-size:12.5px;padding:8px 16px}
}

/* ---------- 19. PRINT (Download-as-PDF via window.print) ---------- */
@media print{
  .oh-nav,.oh-footer,.oh-cta-band,.oh-cta-wrap,.oh-resource,.oh-resource-wrap,
  .oh-after-band,.oh-endmatter .oh-cta-band,.oh-community-line,.oh-community-quiet,
  .oh-quiet,.oh-map-cta,.oh-ladder,.oh-social-panel,.oh-quoteband,.oh-quote-band,
  .oh-copy-btn,.oh-noprint{
    display:none !important;
  }
  body.oh-page{background:#fff;color:#000}
  .oh-hero{background:none !important;color:#000;padding:0 0 12px}
  .oh-hero .oh-h1,.oh-hero .oh-dek,.oh-hero-byline{color:#000}
  .oh-badge-outline{color:#000;border-color:#000}
  .oh-prompt-body{max-height:none;overflow:visible}
  a{color:#000 !important;text-decoration:none}
  .oh-article,.oh-prose{padding-top:12px}
}