/* ============================================================
   PhoneParental — Design System
   Aesthetic: trustworthy "control room" — deep ink + signal teal
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root{
  /* palette */
  --ink:#0c1322;          /* near-black navy */
  --ink-2:#16203a;        /* panel navy */
  --slate:#3a4a66;        /* muted text on light */
  --mist:#6b7a93;         /* secondary text */
  --line:#e6eaf2;         /* hairlines on light */
  --paper:#ffffff;
  --paper-2:#f6f8fc;      /* section tint */
  --paper-3:#eef2f9;
  --signal:#19c2b6;       /* teal accent */
  --signal-deep:#0e9c92;
  --signal-soft:#e3f8f5;
  --gold:#f5b544;         /* rating stars / highlights */
  --danger:#e4574c;
  --ok:#27ae60;

  /* type */
  --display:'Fraunces',Georgia,serif;
  --body:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,sans-serif;

  /* metrics */
  --container:1180px;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(12,19,34,.06),0 2px 8px rgba(12,19,34,.05);
  --shadow:0 10px 30px -12px rgba(12,19,34,.18),0 4px 12px -6px rgba(12,19,34,.10);
  --shadow-lg:0 30px 60px -20px rgba(12,19,34,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--body);
  color:var(--slate);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block;height:auto}
a{color:var(--signal-deep);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);line-height:1.12;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,5vw,3.6rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.7rem)}
h3{font-size:clamp(1.25rem,2vw,1.6rem)}
p{margin-bottom:1rem}
strong{color:var(--ink);font-weight:600}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--body);font-weight:700;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--signal-deep);margin-bottom:14px;display:inline-block}
.lede{font-size:1.18rem;color:var(--slate)}
section{position:relative}
.sec{padding:84px 0}
.sec-tint{background:var(--paper-2)}
.center{text-align:center}
.maxw{max-width:720px;margin-left:auto;margin-right:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--body);font-weight:700;font-size:1rem;
  padding:15px 28px;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--signal);color:#04201d;box-shadow:0 8px 22px -8px rgba(25,194,182,.7)}
.btn-primary:hover{transform:translateY(-2px);color:#04201d;box-shadow:0 14px 30px -10px rgba(25,194,182,.85)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);color:#fff;background:var(--ink-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-lg{padding:18px 36px;font-size:1.08rem}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.82);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.3rem;color:var(--ink)}
.brand .logo{width:34px;height:34px;flex:0 0 34px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{color:var(--slate);font-weight:600;font-size:.96rem}
.nav-links a:hover{color:var(--ink)}
.has-drop{position:relative}
.drop{position:absolute;top:130%;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:14px;min-width:560px;opacity:0;visibility:hidden;transition:.22s var(--ease);display:grid;grid-template-columns:1fr 1fr;gap:4px}
.has-drop:hover .drop{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.drop a{display:block;padding:9px 12px;border-radius:9px;font-size:.9rem;color:var(--slate)}
.drop a:hover{background:var(--paper-2);color:var(--ink)}
.nav-cta{margin-left:6px}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;width:42px;height:42px}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px auto;transition:.3s}

/* ---------- hero ---------- */
.hero{background:radial-gradient(120% 120% at 80% -10%,#1b2950 0%,var(--ink) 55%);color:#dfe6f2;overflow:hidden;position:relative}
.hero::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M0 .5H40M.5 0V40' stroke='%23ffffff' stroke-opacity='.04'/%3E%3C/svg%3E");pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero h1{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:96px 0}
.hero p{color:#aebbd4;font-size:1.18rem;max-width:34ch}
.hero-badges{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:#8ea0c2;font-size:.92rem;font-weight:600}
.hero-badges span{display:flex;align-items:center;gap:7px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:24px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ico{width:52px;height:52px;border-radius:13px;background:var(--signal-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card h3{font-size:1.18rem;margin-bottom:8px}
.card p{font-size:.96rem;margin-bottom:0;color:var(--mist)}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:700;font-size:.92rem}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:-1}
.split-media{background:linear-gradient(160deg,var(--paper-2),var(--paper-3));border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat .num{font-family:var(--display);font-size:2.6rem;font-weight:600;color:var(--ink);line-height:1}
.stat .lbl{color:var(--mist);font-size:.92rem;margin-top:6px}

/* ---------- reviews ---------- */
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.stars{color:var(--gold);font-size:1rem;letter-spacing:2px;margin-bottom:12px}
.review p{font-size:1rem;color:var(--slate)}
.reviewer{display:flex;align-items:center;gap:12px;margin-top:16px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--signal-soft);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--signal-deep);font-family:var(--body)}
.reviewer b{color:var(--ink);font-size:.95rem;display:block}
.reviewer small{color:var(--mist)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;background:#fff;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;cursor:pointer;padding:20px 56px 20px 22px;font-family:var(--body);font-weight:700;font-size:1.04rem;color:var(--ink);position:relative}
.faq-q::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--signal-deep);transition:transform .25s}
.faq-item[open] .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{padding:0 22px 20px;color:var(--slate);font-size:.98rem}
details.faq-item summary{list-style:none}
details.faq-item summary::-webkit-details-marker{display:none}

/* ---------- install / download box ---------- */
.install-box{background:linear-gradient(135deg,var(--ink),#1c2c52);color:#dfe6f2;border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
.install-box h3{color:#fff}
.install-box p{color:#a9b7d4;margin-bottom:0}
.install-steps{display:flex;gap:14px;flex-wrap:wrap;margin-top:16px}
.install-steps .step{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:10px 14px;font-size:.86rem;color:#cdd8ee;font-weight:600}

/* ---------- CTA band ---------- */
.cta-band{background:radial-gradient(120% 140% at 20% 0%,#1b2950,var(--ink));color:#fff;border-radius:24px;padding:56px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#aebbd4;max-width:48ch;margin:14px auto 26px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#9fb0cf;padding:64px 0 30px;font-size:.94rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-family:var(--body);font-size:.95rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.site-footer a{color:#9fb0cf;display:block;padding:5px 0}
.site-footer a:hover{color:#fff}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--display);font-size:1.25rem;margin-bottom:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#6f82a6;font-size:.86rem}
.foot-disclaim{max-width:60ch;line-height:1.6}

/* ---------- breadcrumb ---------- */
.crumb{font-size:.86rem;color:var(--mist);padding:18px 0}
.crumb a{color:var(--mist)}
.crumb a:hover{color:var(--ink)}

/* ---------- page hero (interior) ---------- */
.page-hero{background:radial-gradient(120% 120% at 85% -20%,#1b2950,var(--ink));color:#dfe6f2;padding:60px 0 70px}
.page-hero h1{color:#fff;max-width:18ch}
.page-hero p{color:#aebbd4;max-width:54ch;font-size:1.15rem}

/* ---------- prose ---------- */
.prose h2{margin:42px 0 14px}
.prose h3{margin:30px 0 10px}
.prose p,.prose li{color:var(--slate)}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose li{margin-bottom:8px}
.prose{max-width:760px}

/* ---------- pill list ---------- */
.checks{list-style:none;margin:0 0 18px!important;display:grid;gap:10px}
.checks li{padding-left:30px;position:relative;color:var(--slate)}
.checks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--signal-deep);font-weight:800}

/* ---------- animations ---------- */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{animation:rise .7s var(--ease) both}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}.d4{animation-delay:.32s}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero-grid,.split,.foot-grid{grid-template-columns:1fr;gap:36px}
  .split.rev .split-media{order:0}
  .g-4{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .install-box,.cta-band{grid-template-columns:1fr;padding:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:72px 0 auto;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .3s var(--ease);margin-left:0}
  .nav-links.open{transform:none}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line)}
  .has-drop .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px;min-width:0;grid-template-columns:1fr;display:none}
  .has-drop.open .drop{display:block}
  .burger{display:block}
  .g-3,.g-4,.g-2,.stats{grid-template-columns:1fr}
  .sec{padding:56px 0}
  .foot-grid{grid-template-columns:1fr}
}