/* ============================================================
   CLOVE ANALYTICS — main.css
   Single stylesheet for the whole site.
   Every value derives from Brand Guidelines v1.0.
   Structure: 1 Tokens · 2 Base · 3 Layout · 4 Components · 5 Responsive
   ============================================================ */

/* ---------- 1. TOKENS (Guidelines §3–§5) ---------- */
:root{
  /* color — Palette v1 "Oxblood on Paper" (light mode; site is light-only) */
  --bg:#FBFAF7; --surface:#FFFFFF; --border:#E7E4DC;
  --ink:#1C2422; --body:#3D4A46; --muted:#6B7A75;
  --primary:#005953; --primary-hover:#00423E; --primary-tint:#EDF4F2;
  --oxblood:#6E2A38; --oxblood-tint:#F6EDEE;
  --positive:#0E8A64; --negative:#9E3542; --warning:#B45309;
  --mid:#4D8F8A; --chart-neutral:#8C9A94;
  /* type */
  --font-sans:"IBM Plex Sans",-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;
  --font-serif:"IBM Plex Serif",Georgia,serif;
  /* spacing scale (base-4) */
  --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px; --s10:128px;
  /* radii */
  --r-tag:4px; --r-btn:7px; --r-card:8px; --r-panel:10px;
  /* misc */
  --shadow:0 1px 3px rgba(28,36,34,.08);
  --content:1140px; --prose:720px;
}

/* ---------- 2. BASE ---------- */
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-sans);background:var(--bg);color:var(--body);
  font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;letter-spacing:-.015em;font-weight:600;}
h1{font-size:44px;} h2{font-size:32px;} h3{font-size:22px;} h4{font-size:18px;}
p{max-width:70ch;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
.num, .tabular{font-variant-numeric:tabular-nums;}

/* eyebrow / kicker (Plex Mono, Guidelines §4) */
.kicker{font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.09em;text-transform:uppercase;color:var(--primary);}

/* ---------- 3. LAYOUT ---------- */
.container{max-width:var(--content);margin:0 auto;padding:0 var(--s7);}
.prose{max-width:var(--prose);}
section{padding:72px 0;}                     /* between-section rhythm */
.section-tint{background:var(--primary-tint);}/* the ONE allowed tinted band per page */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--s7);align-items:start;}
.stack-2{display:flex;flex-direction:column;gap:var(--s2);}
.stack-4{display:flex;flex-direction:column;gap:var(--s4);}
.stack-5{display:flex;flex-direction:column;gap:var(--s5);}

/* ---------- 4. COMPONENTS ---------- */
/* header */
.site-header{background:var(--bg);border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:50;}
.site-header .container{display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;padding-bottom:14px;}
.lockup{display:flex;align-items:center;gap:10px;color:var(--ink);
  font-weight:600;font-size:17px;letter-spacing:-.01em;}
.lockup:hover{text-decoration:none;}
.lockup svg{height:28px;width:auto;}
.nav{display:flex;align-items:center;gap:var(--s5);font-size:14.5px;}
.nav a{color:var(--body);}
.nav a:hover{color:var(--primary);text-decoration:none;}

/* buttons (never pills, never emoji — Guidelines §5) */
.btn{display:inline-block;background:var(--primary);color:#fff;font-weight:600;
  font-size:14px;padding:11px 20px;border-radius:var(--r-btn);}
.btn:hover{background:var(--primary-hover);text-decoration:none;}
.btn-ghost{display:inline-block;color:var(--primary);border:1.5px solid var(--primary);
  font-weight:600;font-size:14px;padding:10px 19px;border-radius:var(--r-btn);}
.btn-ghost:hover{background:var(--primary-tint);text-decoration:none;}

/* cards */
.card{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:var(--s6);}

/* pull-quote (Plex Serif upright — Chunk C amendment) */
.pull{border-left:3px solid var(--oxblood);background:var(--oxblood-tint);
  border-radius:0 6px 6px 0;padding:var(--s4) var(--s5);max-width:560px;}
.pull p{font-family:var(--font-serif);font-size:16px;line-height:1.6;color:var(--ink);}
.pull .who{font-family:var(--font-sans);font-size:12px;color:var(--muted);margin-top:var(--s2);}
.pull-green{border-left-color:var(--primary);background:var(--primary-tint);}

/* product exhibit (P2 treatment: flat, hairline, mono caption) */
.exhibit{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:var(--s5);}
.exhibit .figcap{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.07em;
  text-transform:uppercase;color:var(--muted);margin-top:var(--s3);}
.tile .lbl{font-size:12px;color:var(--muted);margin-bottom:2px;}
.tile .val{font-size:26px;font-weight:650;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.tile .cmp{font-size:12px;font-variant-numeric:tabular-nums;margin-top:2px;}
.up{color:var(--positive);} .dn{color:var(--negative);} .warn{color:var(--warning);}

/* video embed (Vimeo responsive wrapper) */
.video{padding:56.25% 0 0 0;position:relative;border-radius:var(--r-card);
  overflow:hidden;border:1px solid var(--border);background:#000;}
.video iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0;}

/* logo strip (quiet — Guidelines/Doc 6 S3) */
.logostrip{display:flex;gap:var(--s8);align-items:center;justify-content:center;flex-wrap:wrap;}
.logostrip span{font-weight:700;letter-spacing:.06em;font-size:15px;color:var(--ink);}

/* footer */
.site-footer{border-top:1px solid var(--border);padding:var(--s7) 0;margin-top:var(--s9);}
.site-footer .identity{font-size:14.5px;color:var(--ink);font-weight:500;margin-bottom:var(--s4);}
.site-footer .links{display:flex;flex-wrap:wrap;gap:var(--s5);font-size:13px;color:var(--muted);}
.site-footer .links a{color:var(--muted);}

/* ---------- 5. RESPONSIVE ---------- */
@media (max-width:900px){
  h1{font-size:32px;} h2{font-size:26px;}
  .container{padding:0 var(--s5);}
  section{padding:var(--s8) 0;}
  .grid-2{grid-template-columns:1fr;gap:var(--s6);}
  .nav{gap:var(--s4);font-size:13.5px;flex-wrap:wrap;justify-content:flex-end;}
  .nav a.nav-link{display:none;}          /* collapse links on small screens; CTA stays */
  .logostrip{gap:var(--s5);}
}

/* ---------- review-round additions ---------- */
.nav a.btn{color:#fff;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s6);}
.grid-center{align-items:center;}
.center{text-align:center;}
.center h1,.center h2,.center p{margin-left:auto;margin-right:auto;}
.rule{border:0;border-top:1px solid var(--border);max-width:var(--content);margin:0 auto;}
.pull-quiet{background:transparent;border-left:3px solid var(--primary);border-radius:0;padding:var(--s2) var(--s5);}
.offer-title{font-size:20px;letter-spacing:-.012em;}
.card-list{list-style:none;display:flex;flex-direction:column;gap:var(--s3);font-size:15px;}
.card-list li{padding-left:18px;position:relative;}
.card-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--primary);}
.video-facade{position:relative;cursor:pointer;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--border);background:#000;}
.video-facade img{width:100%;}
.vf-play{position:absolute;inset:0;margin:auto;width:64px;height:64px;border-radius:50%;
  background:rgba(28,36,34,.78);display:flex;align-items:center;justify-content:center;}
.vf-dur{position:absolute;right:12px;bottom:12px;background:rgba(28,36,34,.78);color:#fff;
  font-family:var(--font-mono);font-size:11px;padding:3px 10px;border-radius:12px;}
.logostrip img{height:32px;width:auto;filter:grayscale(1);opacity:.6;}
.closeband{position:relative;overflow:hidden;}
.closeband .watermark{position:absolute;right:-70px;top:50%;transform:translateY(-50%);height:300px;width:auto;opacity:.04;pointer-events:none;}
@media (max-width:900px){ .grid-3{grid-template-columns:1fr;gap:var(--s5);} .closeband .watermark{display:none;} }

/* partnership four-question grid equalization */
.q-grid{grid-auto-rows:1fr;}
.q-grid > .stack-4{display:flex;flex-direction:column;}
.q-grid > .stack-4 > p{min-height:2.9em;}
.q-grid > .stack-4 > .exhibit{flex:1;}
@media (max-width:900px){ .q-grid{grid-auto-rows:auto;} .q-grid > .stack-4 > p{min-height:0;} }

/* round-2 additions (partnership verify) */
.balance{text-wrap:balance;}
.q-grid{align-items:stretch;}
.q-grid .exhibit{display:flex;flex-direction:column;}
.q-grid .exhibit .figcap{margin-top:auto;padding-top:var(--s3);}

/* round-3 additions (valentte review) */
.pull p + p{margin-top:var(--s3);}
.tile .val.up{color:var(--positive);}
.tile .val.dn{color:var(--negative);}
.story .rule{max-width:var(--prose);}
.story .pull{max-width:none;}

/* round-7 additions: mobile menu (hamburger, all pages) */
.menu-btn{display:none;background:none;border:0;padding:6px;cursor:pointer;color:var(--ink);line-height:0;border-radius:var(--r-tag);}
.menu-btn:hover{color:var(--primary);}
.mobile-menu{display:none;border-top:1px solid var(--border);background:var(--bg);}
.mobile-menu a{display:block;padding:14px var(--s5);font-size:15.5px;color:var(--body);border-bottom:1px solid var(--border);}
.mobile-menu a:last-child{border-bottom:0;}
.mobile-menu a:hover{color:var(--primary);text-decoration:none;}
@media (max-width:900px){
  .menu-btn{display:inline-flex;}
  .mobile-menu.open{display:block;}
}