/* ============================================================
   BASE — shared across all Quills AI pages
   reset · variables · body · nav · footer · buttons · utilities
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#06090e;
  --bg2:#0a0f17;
  --bg3:#0f1520;
  --rule:rgba(255,255,255,0.08);
  --text:#eaecf0;
  --text-dim:rgba(234,236,240,0.42);
  --text-mid:rgba(234,236,240,0.68);
  --accent:#3aaad2;
  --accent-bright:#52c6dd;
  --accent-deep:#0450b0;
  --accent-dim:rgba(58,170,210,0.12);
  --sans:'Hanken Grotesk',sans-serif;
  --mono:'DM Mono',monospace;
}

html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}

/* ── NAV ── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 52px;height:92px;
  background:rgba(6,9,14,0.85);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--rule);
}
.nav-logo img{height:56px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:40px}
.nav-links a{
  font-family:var(--sans);font-size:13px;font-weight:500;
  letter-spacing:0.06em;text-transform:uppercase;
  color:var(--text-dim);transition:color 0.2s;
}
.nav-links a:hover,
.nav-links a.active{color:var(--text)}
.nav-cta{
  font-size:12px!important;font-weight:600!important;
  letter-spacing:0.1em!important;
  color:var(--bg)!important;background:var(--accent)!important;
  padding:10px 22px!important;border-radius:2px;
  text-transform:uppercase!important;transition:opacity 0.2s!important;
}
.nav-cta:hover{background:var(--accent-bright)!important;opacity:1!important}

/* Hamburger toggle (hidden on desktop) */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;border:none;cursor:pointer;
  padding:10px;
  flex-direction:column;justify-content:space-between;align-items:stretch;
  z-index:1002;
}
.nav-toggle span{
  display:block;height:2px;width:100%;background:var(--text);
  transition:transform 0.3s ease, opacity 0.2s ease;
  transform-origin:center;
}
.nav-toggle.open span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

/* ── BUTTONS ── */
.btn-solid,.btn-ghost{
  font-family:var(--sans);font-size:12px;font-weight:600;
  letter-spacing:0.1em;text-transform:uppercase;
  padding:14px 32px;border-radius:2px;
  cursor:pointer;text-decoration:none;
  display:inline-flex;align-items:center;justify-content:center;
  line-height:1;
  border:1px solid transparent;
}
.btn-solid{
  background:var(--accent);color:var(--bg);
  transition:background 0.2s, border-color 0.2s;
}
.btn-solid:hover{background:var(--accent-bright);opacity:1}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:rgba(238,236,234,0.25);
  transition:border-color 0.2s, color 0.2s;
}
.btn-ghost:hover{border-color:var(--text);color:var(--text)}

/* ── SECTION UTILITIES ── */
.sec-label{
  font-family:var(--mono);font-size:10px;letter-spacing:0.2em;
  text-transform:uppercase;color:var(--text-dim);
  display:flex;align-items:center;gap:14px;margin-bottom:28px;
}
.sec-label::before{content:'';width:24px;height:1px;background:var(--text-dim)}
.sec-title{
  font-family:var(--sans);font-size:clamp(32px,3.5vw,52px);font-weight:700;
  line-height:1.08;letter-spacing:-0.02em;
}
.sec-body{
  font-size:16px;color:var(--text-mid);line-height:1.75;
  font-weight:400;max-width:520px;
}

/* ── PAGE HERO (inner pages) ── */
.page-hero{
  padding:180px 52px 100px;
  border-bottom:1px solid var(--rule);
  position:relative;
}
.page-hero-label{
  font-family:var(--mono);font-size:10px;letter-spacing:0.2em;
  text-transform:uppercase;color:var(--accent);
  display:flex;align-items:center;gap:14px;margin-bottom:32px;
}
.page-hero-label::before{content:'';width:32px;height:1px;background:var(--accent)}
.page-hero h1{
  font-family:var(--sans);font-size:clamp(42px,6vw,80px);font-weight:800;
  line-height:1.05;letter-spacing:-0.03em;max-width:900px;margin-bottom:28px;
}
.page-hero h1 em{font-style:italic;color:var(--accent)}
.page-hero-sub{
  font-size:17px;color:var(--text-mid);line-height:1.8;max-width:600px;
}
.page-hero-meta{
  font-family:var(--mono);font-size:11px;letter-spacing:0.12em;
  text-transform:uppercase;color:var(--text-dim);
}

/* ── PAGE CTA (about, teams, etc.) ── */
.page-cta{
  padding:100px 52px;border-bottom:1px solid var(--rule);
  text-align:center;
}
.page-cta h2{
  font-family:var(--sans);font-size:clamp(36px,4vw,56px);font-weight:700;
  line-height:1.08;letter-spacing:-0.02em;margin-bottom:28px;
}
.page-cta p{
  font-size:16px;color:var(--text-mid);line-height:1.8;
  max-width:500px;margin:0 auto 36px;
}

/* ── FOOTER ── */
footer{background:var(--bg);color:var(--text);position:relative;overflow:hidden}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:48px;padding:80px 52px 60px;position:relative;z-index:2;
}
.footer-brand{display:flex;flex-direction:column;gap:20px}
.footer-brand img{width:164px;display:block}
.footer-mission{font-size:14px;color:var(--text-mid);line-height:1.75;max-width:300px}
.footer-ctas{display:flex;gap:12px;margin-top:8px;flex-wrap:wrap}
.footer-ctas a{
  font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:0.12em;text-transform:uppercase;
  padding:10px 20px;border:1px solid var(--rule);
  color:var(--text);transition:background 0.2s,color 0.2s,border-color 0.2s;
}
.footer-ctas a:hover{background:var(--text);color:var(--bg);border-color:var(--text)}
.footer-col h4{
  font-family:var(--mono);font-size:10px;letter-spacing:0.18em;
  text-transform:uppercase;color:var(--text-dim);margin-bottom:24px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col ul li a{
  font-family:var(--mono);font-size:11px;letter-spacing:0.06em;
  color:var(--text-dim);text-transform:uppercase;transition:color 0.2s;
}
.footer-col ul li a:hover{color:var(--text)}
.footer-watermark{position:relative;z-index:1;overflow:hidden;line-height:0.82;text-align:center}
.footer-watermark span{
  font-family:var(--sans);font-weight:600;font-size:clamp(140px,32vw,400px);
  color:rgba(255,255,255,0.03);letter-spacing:-0.04em;white-space:nowrap;
  display:block;user-select:none;width:100%;
}
.footer-bottom{
  padding:20px 52px;display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--rule);position:relative;z-index:2;
}
.footer-copy{font-family:var(--mono);font-size:10px;letter-spacing:0.12em;color:var(--text-dim)}
.footer-legal{display:flex;gap:24px}
.footer-legal a{
  font-family:var(--mono);font-size:10px;letter-spacing:0.1em;
  color:var(--text-dim);text-transform:uppercase;transition:color 0.2s;
}
.footer-legal a:hover{color:var(--text)}

/* ── ANIMATIONS ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.page-hero>*{animation:fadeUp 0.9s ease both}
.page-hero-label{animation-delay:0.1s}
.page-hero h1{animation-delay:0.2s}
.page-hero-sub{animation-delay:0.35s}

/* ── RESPONSIVE (shared: nav, page-hero, footer, page-cta) ── */
@media(max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr 1fr;gap:32px}
}
@media(max-width:768px){
  nav{padding:0 24px}
  /* When menu is open, force nav to be opaque (overrides landing's transparent nav) */
  body.nav-open nav{
    background:rgba(6,9,14,0.98)!important;
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom-color:var(--rule)!important;
  }
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:92px;left:0;right:0;
    height:calc(100vh - 92px);
    height:calc(100dvh - 92px); /* dvh handles iOS URL bar collapse */
    flex-direction:column;align-items:stretch;gap:0;
    padding:24px 24px 48px;
    background:rgba(6,9,14,0.98);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-top:1px solid var(--rule);
    transform:translateX(100%);
    transition:transform 0.3s ease;
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
    z-index:1001;
    visibility:hidden;
  }
  .nav-links.open{transform:translateX(0);visibility:visible}
  .nav-links a:not(.nav-cta){
    font-size:17px;padding:20px 4px;width:100%;
    border-bottom:1px solid var(--rule);
    color:var(--text-mid);font-weight:500;
    letter-spacing:0.04em;
  }
  .nav-links a:not(.nav-cta):hover,
  .nav-links a:not(.nav-cta).active{color:var(--text)}
  /* Prominent mobile CTA — full width, larger tap target */
  .nav-links .nav-cta{
    margin-top:32px;
    width:100%;text-align:center;
    border-radius:4px!important;
    font-size:14px!important;
    padding:18px 22px!important;
    letter-spacing:0.08em!important;
  }
  /* iOS-friendly scroll lock handled by JS via position:fixed on body */
  body.nav-open{overflow:hidden}
  .page-hero{padding:140px 24px 60px}
  .page-cta{padding:60px 24px}
  .footer-top{grid-template-columns:1fr;gap:32px;padding:40px 24px 32px}
  .footer-mid{padding:24px;grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center;padding:20px 24px}
  .footer-watermark span{font-size:80px}
}
@media(max-width:480px){
  nav{padding:0 16px;height:80px}
  .nav-logo img{height:44px}
  .nav-links{
    top:80px;
    height:calc(100vh - 80px);
    height:calc(100dvh - 80px);
    padding:20px 20px 40px;
  }
  .nav-links a:not(.nav-cta){font-size:16px;padding:18px 4px}
  .page-hero{padding:120px 20px 48px}
  .page-hero h1{font-size:36px}
  .page-hero-sub{font-size:15px}
  .page-cta{padding:48px 20px}
  .page-cta h2{font-size:32px}
  .footer-top{padding:32px 20px 24px}
  .footer-bottom{padding:16px 20px}
  .footer-col ul li a{padding:6px 0;display:inline-block}
  .footer-ctas a{padding:12px 20px}
  .btn-solid,.btn-ghost{padding:14px 28px;font-size:12px}
}

/* Increase touch targets for footer links on mobile */
@media(max-width:768px){
  .footer-col ul{gap:8px}
  .footer-col ul li a{padding:8px 0;display:inline-block;min-height:32px}
  .footer-ctas a{padding:14px 24px}
  .footer-legal a{padding:6px 0;display:inline-block}
}