/* PPR — airforcemeditation.com
   Design system. Dark instrument-panel aesthetic matching the PPR app.
   Self-contained, no external fonts (fast Core Web Vitals on Cloudflare Pages).
   RTL-ready (logical properties) for the Arabic locale. */

:root {
  --bg0:#05090F; --bg1:#0A1320; --bg2:#0F1B2D; --bg3:#172638;
  --text:#E8EEF5; --dim:#8FA0B6; --mute:#5A6E88;
  --gold:#D9AE55; --cyan:#5DB6D9; --green:#3FB87A;
  --line:rgba(140,170,210,0.12); --line2:rgba(180,200,230,0.22);
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --wrap:1120px; --radius:14px;
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body {
  margin:0; background:var(--bg0); color:var(--text);
  font-family:var(--sans); font-size:17px; line-height:1.65;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
img { max-width:100%; display:block; }
a { color:var(--gold); text-decoration:none; }
a:hover { text-decoration:underline; }
h1,h2,h3,h4 { line-height:1.2; font-weight:650; letter-spacing:-0.02em; margin:0 0 .5em; }
h1 { font-size:clamp(2rem,5vw,3.4rem); }
h2 { font-size:clamp(1.5rem,3.2vw,2.2rem); }
h3 { font-size:1.25rem; }
p { margin:0 0 1rem; color:#cdd8e6; }
small { color:var(--mute); }

.wrap { max-width:var(--wrap); margin-inline:auto; padding-inline:22px; }
.section { padding-block:clamp(48px,8vw,96px); }
.kicker { font-family:var(--mono); font-size:.72rem; letter-spacing:.22em; text-transform:uppercase; color:var(--gold); margin:0 0 14px; }
.lede { font-size:1.2rem; color:var(--dim); max-width:60ch; }
.center { text-align:center; margin-inline:auto; }
.muted { color:var(--mute); }
.hair { height:1px; background:var(--line); border:0; margin:0; }

/* nav */
.nav { position:sticky; top:0; z-index:50; background:rgba(5,9,15,.82); backdrop-filter:saturate(140%) blur(10px); border-bottom:1px solid var(--line); }
.nav .wrap { display:flex; align-items:center; gap:22px; height:64px; }
.brand { display:flex; align-items:center; gap:10px; font-family:var(--mono); font-weight:700; letter-spacing:.16em; color:var(--text); }
.brand b { color:var(--gold); }
.nav nav { margin-inline-start:auto; display:flex; gap:22px; align-items:center; }
.nav nav a { color:var(--dim); font-size:.92rem; }
.nav nav a:hover { color:var(--text); text-decoration:none; }
.navcta { font-family:var(--mono); font-size:.8rem; letter-spacing:.08em; }

/* buttons */
.btn { display:inline-flex; align-items:center; gap:9px; padding:13px 22px; border-radius:10px; font-weight:600; font-size:.98rem; border:1px solid transparent; cursor:pointer; transition:transform .12s ease, background .2s; }
.btn:hover { text-decoration:none; transform:translateY(-1px); }
.btn-gold { background:var(--gold); color:#20180a; }
.btn-gold:hover { background:#e6bd6a; }
.btn-ghost { border-color:var(--line2); color:var(--text); }
.btn-ghost:hover { border-color:var(--gold); color:var(--gold); }

/* hero */
.hero { position:relative; overflow:hidden; border-bottom:1px solid var(--line); }
.hero::before { content:""; position:absolute; inset:0; background:
   radial-gradient(1200px 500px at 70% -10%, rgba(93,182,217,.10), transparent 60%),
   radial-gradient(900px 500px at 20% 0%, rgba(217,174,85,.10), transparent 55%); pointer-events:none; }
.hero .wrap { position:relative; padding-block:clamp(56px,10vw,120px); max-width:960px; }
.hero h1 { max-width:16ch; }
.hero .lede { font-size:1.3rem; margin-block:18px 30px; }
.cta-row { display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.trust { margin-top:22px; font-family:var(--mono); font-size:.76rem; letter-spacing:.12em; text-transform:uppercase; color:var(--mute); }
.trust b { color:var(--green); }

/* grid + cards */
.grid { display:grid; gap:18px; }
.g2 { grid-template-columns:repeat(2,1fr); }
.g3 { grid-template-columns:repeat(3,1fr); }
.g4 { grid-template-columns:repeat(4,1fr); }
.card { background:var(--bg1); border:1px solid var(--line); border-radius:var(--radius); padding:24px; }
.card h3 { margin-bottom:.4em; }
.card p { font-size:.98rem; color:var(--dim); margin:0; }

/* module list */
.mod { display:flex; gap:16px; align-items:flex-start; padding:18px 4px; border-bottom:1px solid var(--line); }
.mod .no { font-family:var(--mono); font-size:1rem; color:var(--text); border:1px solid var(--line2); width:46px; height:46px; display:grid; place-items:center; flex:none; }
.mod h3 { font-size:1.1rem; margin:0 0 .2em; }
.mod p { margin:0; font-size:.96rem; color:var(--dim); }

/* stat / answer blocks (AEO) */
.answer { background:var(--bg1); border-inline-start:3px solid var(--gold); border-radius:0 10px 10px 0; padding:18px 22px; margin:0 0 18px; }
.answer p:last-child { margin-bottom:0; }
.stat { text-align:center; }
.stat .n { font-family:var(--mono); font-size:2.2rem; color:var(--gold); font-weight:600; }
.stat .l { color:var(--dim); font-size:.92rem; }
.src { font-size:.82rem; color:var(--mute); }
.src a { color:var(--dim); }

/* faq */
.faq details { border-bottom:1px solid var(--line); padding:16px 0; }
.faq summary { cursor:pointer; font-weight:600; font-size:1.05rem; list-style:none; display:flex; justify-content:space-between; gap:16px; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content:"+"; color:var(--gold); font-family:var(--mono); }
.faq details[open] summary::after { content:"\2013"; }
.faq details[open] p { margin-top:12px; }

/* app / download */
.shots { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.shot { width:210px; aspect-ratio:9/19.5; background:linear-gradient(180deg,var(--bg2),var(--bg1)); border:1px solid var(--line2); border-radius:26px; overflow:hidden; box-shadow:0 20px 60px rgba(0,0,0,.5); display:grid; place-items:center; }
.shot img { width:100%; height:100%; object-fit:cover; }
.shot .ph { font-family:var(--mono); font-size:.72rem; letter-spacing:.12em; color:var(--mute); text-transform:uppercase; }

/* callout */
.callout { background:linear-gradient(180deg,var(--bg2),var(--bg1)); border:1px solid var(--line2); border-radius:18px; padding:clamp(28px,5vw,52px); text-align:center; }

/* footer */
.foot { border-top:1px solid var(--line); background:var(--bg1); }
.foot .wrap { display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:28px; padding-block:52px 30px; }
.foot h4 { font-family:var(--mono); font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color:var(--mute); }
.foot a { display:block; color:var(--dim); font-size:.92rem; padding:4px 0; }
.foot a:hover { color:var(--text); text-decoration:none; }
.legal { border-top:1px solid var(--line); padding-block:22px; font-size:.82rem; color:var(--mute); display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; }
.disclaimer { font-size:.8rem; color:var(--mute); max-width:70ch; }

/* language selector */
.langsel { font-family:var(--mono); font-size:.8rem; color:var(--dim); }
.langsel select { background:var(--bg2); color:var(--text); border:1px solid var(--line2); border-radius:8px; padding:6px 10px; font-family:var(--mono); }

/* breadcrumb */
.crumb { font-family:var(--mono); font-size:.76rem; letter-spacing:.06em; color:var(--mute); padding-top:22px; }
.crumb a { color:var(--dim); }

/* prose pages */
.prose { max-width:74ch; }
.prose h2 { margin-top:2em; }
.prose ul { padding-inline-start:1.2em; }
.prose li { margin-bottom:.5em; color:#cdd8e6; }

/* responsive */
@media (max-width:860px){
  .g4{grid-template-columns:repeat(2,1fr);} .g3{grid-template-columns:1fr;} .g2{grid-template-columns:1fr;}
  .foot .wrap{grid-template-columns:1fr 1fr;}
  .nav nav a:not(.navcta){display:none;}
}
@media (max-width:520px){ .foot .wrap{grid-template-columns:1fr;} }