/* SupportifyGPT marketing site — shared styles
   Lightweight, no framework, fast (Core Web Vitals friendly per "Get Found" ch.19-21).
   Brand: Supportify GPT teal #0E9C8C. Headings Poppins, body Inter (see /brand). */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Poppins:wght@500;600;700;800&display=swap');

:root {
  /* Brand — Supportify GPT teal (see /brand). Names kept so no markup changes. */
  --brand-50:#E7F7F4; --brand-100:#CDEFEA; --brand-200:#A6E2D9; --brand-300:#6FD2C4;
  --brand-500:#16BBAA; --brand-600:#0E9C8C; --brand-700:#0B7E72; --brand-800:#086B61;
  --ink-900:#0F2A2E; --ink-800:#1e293b; --ink-700:#334155; --ink-600:#475569;
  --ink-500:#64748b; --ink-400:#94a3b8; --line:#e2e8f0; --bg:#ffffff; --bg-soft:#f8fafc;
  --green:#14A86A; --green-bg:#ecfdf5; --amber:#b45309; --red:#dc2626; --red-bg:#fef2f2;
  --radius:14px; --shadow:0 1px 3px rgba(15,23,42,.08),0 10px 30px -12px rgba(15,23,42,.12);
  --maxw:1120px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:'Poppins',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink-800);background:var(--bg);
  line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink-900);line-height:1.2;margin:0 0 .5em;font-weight:800;letter-spacing:-.02em;font-family:var(--font-display)}
h1{font-size:clamp(2rem,5vw,3.25rem)}
h2{font-size:clamp(1.5rem,3.5vw,2.25rem)}
h3{font-size:1.25rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:760px;margin-inline:auto}
.center{text-align:center}
.muted{color:var(--ink-600)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--brand-600);background:var(--brand-50);
  padding:6px 12px;border-radius:999px;margin-bottom:16px}
.section{padding:72px 0}
.section-sm{padding:48px 0}
.bg-soft{background:var(--bg-soft)}
.bg-ink{background:var(--ink-900);color:#cbd5e1}
.bg-ink h2,.bg-ink h3{color:#fff}

/* Buttons */
.btn{display:inline-block;font-weight:700;font-size:1rem;padding:13px 26px;border-radius:10px;
  cursor:pointer;border:1px solid transparent;transition:transform .06s ease,box-shadow .2s ease;
  text-align:center}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px -6px rgba(14,156,140,.55)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-300,#6FD2C4);background:var(--brand-50)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-lg{padding:16px 32px;font-size:1.08rem}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.center .btn-row{justify-content:center}
.cta-note{font-size:.85rem;color:var(--ink-500);margin-top:12px}

/* Header / nav */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.18rem;
  color:var(--ink-900);letter-spacing:-.02em;font-family:var(--font-display)}
.brand:hover{text-decoration:none}
.brand .logo{width:32px;height:32px;flex:none}
.brand b{color:var(--brand-600)}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink-700);font-weight:600;font-size:.97rem}
.nav-links a:hover{color:var(--brand-600);text-decoration:none}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;font-size:1.4rem;color:var(--ink-900)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:84px 0 72px;
  background:radial-gradient(1100px 480px at 78% -8%,var(--brand-100),transparent 60%),
             radial-gradient(800px 420px at 0% 8%,#f5f3ff,transparent 55%)}
.hero h1{margin-bottom:18px}
.hero .lead{font-size:1.22rem;color:var(--ink-600);max-width:640px}
.hero-points{list-style:none;padding:0;margin:24px 0 28px;display:grid;gap:10px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-weight:500;color:var(--ink-700)}
.hero-points li::before{content:"✓";color:var(--green);font-weight:900;flex:none}
.trustbar{margin-top:40px;color:var(--ink-500);font-size:.85rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em}

/* Grids & cards */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow)}
.card h3{margin-bottom:.4em}
.card .ico{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand-600);font-size:1.4rem;margin-bottom:14px}
.feature-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.feature-list li{display:flex;gap:10px;align-items:flex-start}
.feature-list li::before{content:"✓";color:var(--green);font-weight:900;flex:none}

/* Pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:30px;box-shadow:var(--shadow)}
.price-card.featured{border-color:var(--brand-600);box-shadow:0 18px 50px -18px rgba(14,156,140,.42);transform:translateY(-6px)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--brand-600);color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.06em;
  text-transform:uppercase;padding:5px 14px;border-radius:999px}
.price-card h3{font-size:1.15rem;margin-bottom:4px}
.price{font-size:2.6rem;font-weight:800;color:var(--ink-900);letter-spacing:-.03em}
.price small{font-size:.95rem;font-weight:600;color:var(--ink-500)}
.price-card .seats{color:var(--ink-600);font-weight:600;margin:4px 0 18px}
.price-card .btn{width:100%}
.price-card ul{margin:20px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.price-card li{display:flex;gap:9px;font-size:.95rem;color:var(--ink-700)}
.price-card li::before{content:"✓";color:var(--green);font-weight:900;flex:none}

/* Comparison tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
table.compare{width:100%;border-collapse:collapse;min-width:560px;background:#fff;font-size:.96rem}
table.compare th,table.compare td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.compare thead th{background:var(--ink-900);color:#fff;font-weight:700;font-size:.92rem}
table.compare thead th.us{background:var(--brand-600)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td.feat{font-weight:600;color:var(--ink-800)}
table.compare col.us-col,table.compare td.us-cell{background:var(--brand-50)}
table.compare td.us-cell{font-weight:600;color:var(--ink-900)}
.yes{color:var(--green);font-weight:700}
.no{color:var(--red);font-weight:700}
.partial{color:var(--amber);font-weight:700}

/* Reasons / steps */
.reasons{display:grid;gap:18px;counter-reset:r}
.reason{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.reason .num{counter-increment:r;flex:none;width:38px;height:38px;border-radius:10px;
  background:var(--brand-600);color:#fff;font-weight:800;display:grid;place-items:center}
.reason .num::before{content:counter(r)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step .num{counter-increment:s;width:40px;height:40px;border-radius:50%;background:var(--brand-50);
  color:var(--brand-700);font-weight:800;display:grid;place-items:center;margin-bottom:12px}
.step .num::before{content:counter(s)}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink-900);padding:14px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--brand-600);font-weight:800;font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq p{padding:14px 0 4px;margin:0;color:var(--ink-600)}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--brand-700),var(--brand-500));color:#fff;
  border-radius:22px;padding:54px 40px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#e0e7ff;max-width:560px;margin-inline:auto;font-size:1.1rem}

/* Blog */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column}
.post-card .thumb{aspect-ratio:16/9;background:linear-gradient(120deg,var(--brand-100),var(--brand-50));
  display:grid;place-items:center;color:var(--brand-600);font-weight:800;font-size:1.1rem;padding:16px;text-align:center}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-card .tag{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--brand-600)}
.post-card h3{font-size:1.12rem;margin:0}
.post-card .meta{font-size:.82rem;color:var(--ink-500);margin-top:auto}
.article{max-width:740px;margin:0 auto}
.article .meta{color:var(--ink-500);font-size:.9rem;margin-bottom:26px}
.article h2{margin-top:1.6em}
.article h3{margin-top:1.4em}
.article p,.article li{font-size:1.06rem;color:var(--ink-700)}
.article ul,.article ol{padding-left:1.2em}
.article blockquote{border-left:4px solid var(--brand-300,#6FD2C4);margin:1.4em 0;padding:.4em 1.2em;
  color:var(--ink-600);font-style:italic;background:var(--brand-50);border-radius:0 8px 8px 0}

/* Breadcrumbs */
.crumbs{font-size:.85rem;color:var(--ink-500);padding:18px 0 0}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-600)}

/* Footer */
.site-footer{background:var(--ink-900);color:#94a3b8;padding:56px 0 28px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.07em;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.site-footer a{color:#94a3b8;font-size:.95rem}
.site-footer a:hover{color:#fff;text-decoration:none}
.site-footer .brand{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;margin-top:40px;padding-top:22px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}

/* Misc */
.lead{font-size:1.18rem;color:var(--ink-600)}
.pill{display:inline-block;background:var(--green-bg);color:var(--green);font-weight:700;
  font-size:.8rem;padding:4px 12px;border-radius:999px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.logo-cloud{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.logo-cloud a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  font-weight:600;font-size:.9rem;color:var(--ink-600)}
.logo-cloud a:hover{border-color:var(--brand-300,#6FD2C4);color:var(--brand-700);text-decoration:none}

/* Responsive */
@media (max-width:900px){
  .grid-3,.grid-4,.price-grid,.post-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .split,.footer-grid{grid-template-columns:1fr;gap:28px}
  .price-card.featured{transform:none}
}
@media (max-width:680px){
  body{font-size:16px}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:8px 0;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav-links li{padding:0 20px}
  .nav-links a{display:block;padding:12px 0;border-bottom:1px solid var(--bg-soft)}
  .nav-toggle{display:block}
  .grid-3,.grid-4,.price-grid,.post-grid,.steps{grid-template-columns:1fr}
  .section{padding:52px 0}
  .hero{padding:56px 0 48px}
  .cta-band{padding:40px 22px}
}