/* ==========================================================================
   PhoneUpgradeHub — design tokens
   Palette: deep-circuit navy + upgrade-teal accent
   Signature element: "upgrade arrow" chevrons — stands in for the old
   phone's rising-bars/step motif, reused as bullet + step marker.
   ========================================================================== */

:root{
  --ink:      #0E2233;
  --ink-soft: #37515F;
  --paper:    #F4F8F7;
  --panel:    #FFFFFF;
  --line:     #DCE7E4;
  --teal:     #0FA98A;
  --teal-dark:#0B8770;
  --amber:    #FFB020;

  --font-display:"Fraunces","Iowan Old Style",Georgia,serif;
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --max:1140px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--paper);color:var(--ink-soft);font-family:var(--font-body);line-height:1.55;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}

h1,h2,h3{font-family:var(--font-display);color:var(--ink);line-height:1.1;margin:0 0 .5em;letter-spacing:-.01em;}
h1{font-size:clamp(2rem,5vw,3.1rem);font-weight:600;}
h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:600;}
h3{font-size:1.1rem;font-weight:600;}
p{margin:0 0 1em;}

.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-dark);font-weight:700;margin-bottom:14px;}

.chev{display:inline-flex;gap:2px;}
.chev span{display:block;width:8px;height:8px;border-top:2px solid var(--teal);border-right:2px solid var(--teal);transform:rotate(45deg);}
.chev span:nth-child(2){opacity:.6;}
.chev span:nth-child(3){opacity:.3;}

/* ---------------- Header ---------------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(244,248,247,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.2rem;color:var(--ink);text-decoration:none;}
.logo .mark{background:var(--teal);color:#fff;border-radius:8px;width:34px;height:34px;display:flex;align-items:center;justify-content:center;font-size:1rem;}
.nav-links{display:flex;gap:26px;align-items:center;font-size:.94rem;font-weight:500;}
.nav-links a{text-decoration:none;color:var(--ink-soft);}
.nav-links a:hover{color:var(--teal-dark);}
.nav-call{display:flex;align-items:center;gap:8px;background:var(--ink);color:#fff;padding:10px 18px;border-radius:8px;font-weight:700;text-decoration:none;font-size:.92rem;}
.nav-call:hover{background:var(--teal-dark);}

/* ---------------- Hero ---------------- */
.hero{padding:56px 0 40px;position:relative;overflow:hidden;}
.hero-inner{max-width:760px;margin:0 auto;text-align:center;}
.hero p.lede{font-size:1.12rem;max-width:56ch;margin:0 auto 26px;}
.hero-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;margin:22px 0 30px;font-size:.92rem;font-weight:600;color:var(--ink);}
.hero-badges span{display:flex;align-items:center;gap:6px;}
.hero-badges .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);}

.btn-call{
  display:inline-flex;align-items:center;gap:10px;background:var(--teal);color:#fff;
  padding:18px 32px;border-radius:10px;font-weight:700;font-size:1.1rem;text-decoration:none;
  box-shadow:0 14px 30px -12px rgba(15,169,138,.55);
}
.btn-call:hover{background:var(--teal-dark);}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;padding:18px 22px;border-radius:10px;font-weight:600;text-decoration:none;color:var(--ink);border:1.5px solid var(--line);}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* live-status banner under hero */
.live-strip{
  margin-top:38px;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:20px 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:0 20px 40px -30px rgba(14,34,51,.35);
}
.live-status{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);}
.pulse{width:10px;height:10px;border-radius:50%;background:var(--teal);position:relative;}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--teal);animation:pulse 1.8s infinite;}
@keyframes pulse{0%{transform:scale(.6);opacity:1;}100%{transform:scale(1.6);opacity:0;}}
.live-sub{font-size:.88rem;color:var(--ink-soft);}

/* ---------------- Sections ---------------- */
section{padding:60px 0;}
.section-head{max-width:640px;margin:0 auto 40px;text-align:center;}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px;}
.card .icon{font-size:1.7rem;margin-bottom:12px;display:block;}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;position:relative;}
.step .n{
  width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-display);
  margin-bottom:14px;
}

.content-block{max-width:760px;margin:0 auto;}
.content-block h2{margin-top:1.4em;}

.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.review{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;}
.stars{color:var(--amber);letter-spacing:2px;margin-bottom:10px;}
.reviewer{display:flex;align-items:center;gap:10px;margin-top:14px;}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;}
.reviewer .who b{display:block;color:var(--ink);font-size:.92rem;}
.reviewer .who span{font-size:.8rem;opacity:.7;}

.cta-band{background:linear-gradient(135deg,var(--ink),#123449);color:#fff;border-radius:18px;padding:48px;text-align:center;}
.cta-band h2{color:#fff;}
.cta-band p{color:#C9DEDA;}

/* ---------------- Footer ---------------- */
footer.site{background:#0A1B29;color:#AEC2C4;padding:48px 0 26px;font-size:.88rem;}
footer.site .flogo{font-family:var(--font-display);color:#fff;font-size:1.15rem;font-weight:700;margin-bottom:10px;display:block;}
.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;}
.foot-cols h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;}
.foot-cols ul{list-style:none;padding:0;margin:0;}
.foot-cols li{margin-bottom:8px;}
.foot-cols a{text-decoration:none;color:#AEC2C4;}
.foot-cols a:hover{color:#fff;}
.disclosure{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:22px;color:#8AA0A2;line-height:1.7;}
.foot-bottom{margin-top:18px;font-size:.8rem;opacity:.6;}

/* ---------------- Legal pages ---------------- */
.legal{padding:60px 0 80px;}
.legal .wrap{max-width:760px;}
.legal .updated{color:var(--ink-soft);font-size:.9rem;margin-bottom:2.2em;}
.legal h2{margin-top:1.8em;font-size:1.2rem;}
.legal .callout{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:10px;padding:16px 20px;margin:1.5em 0;font-size:.94rem;}

/* ---------------- Live-support popup ---------------- */
.popup-overlay{
  position:fixed;inset:0;background:rgba(10,27,41,.55);display:none;
  align-items:flex-end;justify-content:flex-end;padding:24px;z-index:200;
}
.popup-overlay.open{display:flex;}
.popup-card{
  background:var(--panel);border-radius:16px;max-width:340px;width:100%;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.4);overflow:hidden;
  animation:slideUp .35s ease;
}
@keyframes slideUp{from{transform:translateY(24px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.popup-head{background:var(--ink);color:#fff;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;}
.popup-head .title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.95rem;}
.popup-head .pulse{background:#4CE0BE;}
.popup-close{background:none;border:none;color:#fff;font-size:1.1rem;cursor:pointer;opacity:.7;line-height:1;padding:4px;}
.popup-close:hover{opacity:1;}
.popup-body{padding:20px 18px;}
.popup-body h3{margin-bottom:6px;font-size:1.05rem;}
.popup-body p{font-size:.9rem;margin-bottom:16px;}
.popup-list{list-style:none;padding:0;margin:0 0 18px;font-size:.85rem;color:var(--ink-soft);}
.popup-list li{padding:5px 0;display:flex;gap:8px;align-items:center;}
.popup-list li::before{content:"✓";color:var(--teal);font-weight:700;}
.popup-call{
  display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:var(--teal);
  color:#fff;padding:14px;border-radius:9px;font-weight:700;text-decoration:none;font-size:1rem;
}
.popup-call:hover{background:var(--teal-dark);}
.popup-launcher{
  position:fixed;bottom:22px;right:22px;z-index:150;background:var(--teal);color:#fff;
  border:none;border-radius:100px;padding:14px 20px;display:flex;align-items:center;gap:8px;
  font-weight:700;font-size:.9rem;box-shadow:0 14px 30px -10px rgba(15,169,138,.6);cursor:pointer;
}

/* ---------------- Responsive ---------------- */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .reviews{grid-template-columns:1fr 1fr;}
  .foot-cols{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .nav-links{display:none;}
  .grid-4,.steps,.grid-3,.reviews{grid-template-columns:1fr;}
  .foot-cols{grid-template-columns:1fr;}
  .btn-call,.btn-ghost{width:100%;justify-content:center;}
  .cta-band{padding:34px 22px;}
  .popup-overlay{padding:14px;align-items:flex-end;}
  .popup-card{max-width:100%;}
}

a:focus-visible, button:focus-visible{outline:3px solid var(--teal);outline-offset:2px;}