/* Popwell landing site — palette derived from app icon (sky-blue → teal gradient, iridescent bubble) */
:root{
  --bg:#f5fbfd;
  --bg-soft:#e8f5f9;
  --surface:#ffffff;
  --text:#0f2f3c;
  --text-soft:#3d5a66;
  --primary:#0d6ea8;      /* deep sky blue */
  --primary-soft:#dceef8;
  --accent:#0e7a63;       /* sea teal */
  --accent-soft:#dcf2ec;
  --hero-a:#3fa3de;
  --hero-b:#2aa78e;
  --border:#cfe4ec;
  --shadow:0 6px 24px rgba(15,47,60,.08);
  --radius:14px;
  --maxw:1080px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0a1a21;
    --bg-soft:#0f242e;
    --surface:#122b36;
    --text:#dcedf4;
    --text-soft:#9fbfcb;
    --primary:#5cbcec;
    --primary-soft:#123a50;
    --accent:#43cba8;
    --accent-soft:#0e3a31;
    --hero-a:#1c6ea6;
    --hero-b:#137a68;
    --border:#1e4250;
    --shadow:0 6px 24px rgba(0,0,0,.35);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:1.0625rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--primary)}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--primary);outline-offset:3px;border-radius:4px}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--primary);color:#fff;
  padding:.6rem 1rem;z-index:100;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}

/* Header / nav */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.site-header .wrap{display:flex;align-items:center;gap:1rem;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--text)}
.brand img{width:36px;height:36px;border-radius:9px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--border);border-radius:8px;padding:.45rem .7rem;color:var(--text);font-size:1rem;cursor:pointer}
.site-nav{margin-left:auto}
.site-nav ul{list-style:none;display:flex;gap:.25rem;margin:0;padding:0;flex-wrap:wrap}
.site-nav a{display:block;padding:.5rem .75rem;border-radius:8px;text-decoration:none;color:var(--text-soft);font-weight:600;font-size:.95rem}
.site-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.js .nav-toggle{display:block}
@media (min-width:761px){.js .nav-toggle{display:none}}
@media (max-width:760px){
  .js .site-nav{display:none;width:100%}
  .js .site-nav.open{display:block}
  .js .site-nav ul{flex-direction:column;padding:.5rem 0 1rem}
}

/* Hero */
.hero{
  background:linear-gradient(160deg,var(--hero-a),var(--hero-b));
  color:#fff;
  overflow:hidden;
  position:relative;
}
.hero .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:2.5rem;align-items:center;padding-top:4rem;padding-bottom:4.5rem}
.hero h1{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.15;margin:0 0 1rem;letter-spacing:-.02em}
.hero p.lede{font-size:1.2rem;max-width:34rem;margin:0 0 1.75rem;color:rgba(255,255,255,.94)}
.hero .badges{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.hero .fineprint{margin-top:1rem;font-size:.9rem;color:rgba(255,255,255,.85)}
.store-badge{
  display:inline-flex;align-items:center;gap:.65rem;
  background:#000;color:#fff;text-decoration:none;
  padding:.65rem 1.15rem;border-radius:12px;border:1px solid rgba(255,255,255,.35);
}
.store-badge:hover{background:#111}
.store-badge svg{width:26px;height:26px;flex:none}
.store-badge .small{display:block;font-size:.68rem;line-height:1.1;opacity:.85}
.store-badge .big{display:block;font-size:1.15rem;font-weight:600;line-height:1.2}
.hero-visual{display:flex;justify-content:center}
@media (max-width:760px){
  .hero .wrap{grid-template-columns:1fr;gap:1.75rem;padding-top:2.75rem;padding-bottom:3rem}
  .hero-visual{order:-1}
}
.bubble-mock{
  position:relative;width:min(300px,70vw);aspect-ratio:1;
  display:grid;place-items:center;
}
.bubble-mock img{width:62%;height:auto;border-radius:26%;box-shadow:0 18px 48px rgba(0,0,0,.35)}
.bubble-mock .b{
  position:absolute;border-radius:50%;
  background:radial-gradient(circle at 32% 28%, rgba(255,255,255,.95), rgba(255,255,255,.25) 42%, rgba(255,255,255,.06) 70%);
  border:1px solid rgba(255,255,255,.5);
}
.b1{width:64px;height:64px;top:-6px;left:4px}
.b2{width:40px;height:40px;bottom:14px;right:-4px}
.b3{width:26px;height:26px;top:38px;right:26px}
.b4{width:48px;height:48px;bottom:-10px;left:44px}

/* Sections */
section{padding:3.5rem 0}
section.alt{background:var(--bg-soft)}
h2{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.015em;margin:0 0 .5rem}
.kicker{font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;color:var(--accent);margin:0 0 .35rem}
.section-intro{max-width:44rem;color:var(--text-soft);margin:0 0 2rem}
.grid{display:grid;gap:1.25rem}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid.cols-3,.grid.cols-2,.grid.cols-4{grid-template-columns:1fr}}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.4rem;box-shadow:var(--shadow);
}
.card h3{margin:0 0 .5rem;font-size:1.1rem}
.card p{margin:0;color:var(--text-soft);font-size:.98rem}
.card .emoji{font-size:1.6rem;display:block;margin-bottom:.6rem}

/* Screenshots */
.shot-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.shot-strip:focus-visible{outline:3px solid var(--primary);outline-offset:6px;border-radius:4px}
.shot{margin:0}
.shot img{display:block;width:100%;height:auto;background:#000;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow)}
.shot figcaption{margin-top:.7rem;font-size:.9rem;line-height:1.45;color:var(--text-soft)}
@media (max-width:760px){
  .shot-strip{display:flex;overflow-x:auto;gap:1rem;margin:0 -1.25rem;padding:0 1.25rem .8rem;scroll-snap-type:x mandatory}
  .shot{flex:0 0 66%;max-width:15rem;scroll-snap-align:start}
}

/* Problem / solution */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
@media (max-width:760px){.compare{grid-template-columns:1fr}}
.compare .card ul{margin:.5rem 0 0;padding-left:1.2rem;color:var(--text-soft)}
.compare .card li{margin:.4rem 0}
.compare .bad h3::before{content:"✕ ";color:#c0443c}
.compare .good{border-color:var(--accent)}
.compare .good h3::before{content:"✓ ";color:var(--accent)}

/* Themes */
.themes{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
@media (max-width:900px){.themes{grid-template-columns:repeat(2,1fr)}}
@media (max-width:400px){.themes{grid-template-columns:1fr}}
.theme{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1rem;display:flex;gap:.75rem;align-items:center;
}
.theme .dot{width:34px;height:34px;border-radius:50%;flex:none;border:2px solid rgba(255,255,255,.6);box-shadow:0 2px 8px rgba(0,0,0,.18)}
.theme b{display:block;font-size:.95rem}
.theme span{font-size:.82rem;color:var(--text-soft)}
.dot-classic{background:linear-gradient(135deg,#4aa3e0,#1d5f9e)}
.dot-pastel{background:linear-gradient(135deg,#f6c6dd,#bcd8f4)}
.dot-ocean{background:linear-gradient(135deg,#1c4e80,#0b2a4a)}
.dot-sunset{background:linear-gradient(135deg,#ff9e7d,#f2666c)}
.dot-forest{background:linear-gradient(135deg,#69a35c,#2f5d3a)}
.dot-neon{background:linear-gradient(135deg,#f637ec,#25e2f4)}
.dot-galaxy{background:linear-gradient(135deg,#6f4dc7,#241a52)}
.dot-zen{background:linear-gradient(135deg,#e8e8e8,#7c7c7c)}

/* Sessions */
.session{position:relative}
.session .time{
  display:inline-block;background:var(--accent-soft);color:var(--accent);
  font-weight:700;font-size:.8rem;border-radius:999px;padding:.2rem .7rem;margin-bottom:.6rem;
}

/* Stats band */
.band{
  background:linear-gradient(135deg,var(--hero-a),var(--hero-b));color:#fff;
  border-radius:var(--radius);padding:2.25rem;display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;
}
@media (max-width:760px){.band{grid-template-columns:1fr}}
.band h2{color:#fff}
.band p{color:rgba(255,255,255,.92)}
.band ul{margin:0;padding-left:1.2rem}
.band li{margin:.45rem 0}

/* FAQ */
.faq details{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  margin-bottom:.75rem;overflow:hidden;
}
.faq summary{
  cursor:pointer;font-weight:600;padding:1rem 1.25rem;list-style:none;
  display:flex;justify-content:space-between;gap:1rem;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--primary);flex:none;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0;padding:0 1.25rem 1.1rem;color:var(--text-soft)}

/* CTA */
.cta{text-align:center}
.cta .badges{display:flex;justify-content:center;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}

/* Guide cards */
.guide-card{text-decoration:none;color:inherit;display:block;transition:transform .15s ease}
.guide-card:hover{transform:translateY(-3px)}
.guide-card h3{color:var(--primary)}
.guide-card .more{color:var(--accent);font-weight:600;font-size:.92rem}

/* Footer */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:2.5rem 0;margin-top:2rem;font-size:.95rem}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
@media (max-width:760px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer h3{font-size:1rem;margin:0 0 .6rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:.35rem 0}
.site-footer p{color:var(--text-soft)}
.site-footer .legal{margin-top:2rem;color:var(--text-soft);font-size:.85rem;border-top:1px solid var(--border);padding-top:1.25rem}

/* Article / guide pages */
.article-header{background:linear-gradient(160deg,var(--hero-a),var(--hero-b));color:#fff;padding:3rem 0 2.5rem}
.article-header h1{font-size:clamp(1.7rem,3.8vw,2.5rem);margin:.5rem 0 0;line-height:1.2;letter-spacing:-.02em}
.breadcrumb{font-size:.9rem;margin:0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0}
.breadcrumb li+li::before{content:"›";margin-right:.35rem;opacity:.7}
.article-header .breadcrumb a{color:rgba(255,255,255,.9)}
.article-body{max-width:46rem;margin:0 auto;padding:2.5rem 1.25rem 3rem}
.article-body h2{margin-top:2.25rem}
.article-body h3{margin-top:1.5rem}
.article-body ul,.article-body ol{padding-left:1.35rem}
.article-body li{margin:.4rem 0}
.article-body blockquote{border-left:4px solid var(--accent);margin:1.5rem 0;padding:.25rem 0 .25rem 1.1rem;color:var(--text-soft);font-style:italic}
.app-note{
  background:var(--accent-soft);border:1px solid var(--accent);border-radius:var(--radius);
  padding:1.25rem 1.4rem;margin:2rem 0;
}
.app-note h2,.app-note h3{margin-top:0;color:var(--accent)}
.related{margin-top:2.5rem;border-top:1px solid var(--border);padding-top:1.5rem}
.related h2{font-size:1.2rem}
table{border-collapse:collapse;width:100%;margin:1.25rem 0;font-size:.95rem}
th,td{border:1px solid var(--border);padding:.55rem .75rem;text-align:left;vertical-align:top}
th{background:var(--bg-soft)}
.table-scroll{overflow-x:auto}
.btn{
  display:inline-block;background:var(--primary);color:#fff;text-decoration:none;
  font-weight:700;padding:.7rem 1.4rem;border-radius:10px;
}
.btn:hover{filter:brightness(1.08)}