/* Farsi product pages (amirardekani.com/tennis/ and the pages that follow it).
   One layout for every product: hero → who it's for → inside → how → price → FAQ → buy.
   Look = index-fa.html (green hero, clay accent, paper banding). No letter-spacing, ever:
   it breaks Farsi joining. Link this file with a ?v= number and bump it on every change:
   sw.js serves /assets/ cache-first to anyone who has opened program.html. */

@font-face{font-family:'Vazirmatn';src:url('/assets/fonts/Vazirmatn-Variable.woff2') format('woff2');
  font-weight:100 900;font-style:normal;font-display:swap;}

:root{
  --green:#0E4A36;--green-2:#156A4D;--green-dk:#0a3527;--clay:#C7552F;--clay-2:#E06B43;
  --paper:#FAF7F2;--paper-2:#F1ECE3;--card:#FFFFFF;--ink:#1A1A1A;--ink-2:#5C5C5C;--line:#E7E2D9;
  --fa:'Vazirmatn',Tahoma,sans-serif;--disp:'Barlow Condensed','Vazirmatn',sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);--max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--fa);background:var(--paper);color:var(--ink);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
section{position:relative;}
.pad{padding:88px 0;}
.pad-sm{padding:64px 0;}
.band{background:var(--paper-2);}
.acc{color:var(--clay);}
.ltr{direction:ltr;unicode-bidi:isolate;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--fa);font-weight:700;
  font-size:18px;padding:16px 28px;border-radius:100px;cursor:pointer;border:none;
  transition:transform .15s var(--ease),box-shadow .2s,background .2s;}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 10px 28px rgba(199,85,47,.28);}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.35);color:#fff;}
.btn-ghost.dark{border-color:var(--line);color:var(--ink);background:var(--card);}
.btn-sm{font-size:15px;padding:10px 18px;}
.btn-block{width:100%;}

.eyebrow{font-weight:700;font-size:16px;color:var(--clay);margin-bottom:14px;display:inline-flex;align-items:center;gap:12px;}
.eyebrow::before{content:"";width:38px;height:2px;background:currentColor;display:block;}
.sec-h{font-weight:900;font-size:clamp(32px,4.6vw,54px);line-height:1.22;}
.sec-sub{font-weight:500;font-size:19px;color:var(--ink-2);line-height:1.75;margin-top:14px;max-width:660px;}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(14,74,54,.94);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.10);}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:19px;white-space:nowrap;}
.brand .mark{width:40px;height:40px;border-radius:10px;overflow:hidden;flex-shrink:0;background:#fff;}
.brand .mark img{width:40px;height:40px;object-fit:cover;display:block;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{color:rgba(255,255,255,.82);font-weight:600;font-size:16px;}
.nav-links a:hover{color:#fff;}
@media(max-width:860px){.nav-links{display:none;}}

/* hero */
.hero{background:radial-gradient(120% 90% at 80% 0%,#155b43 0%,var(--green) 55%,var(--green-dk) 100%);
  color:#fff;padding:72px 0 88px;overflow:hidden;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;position:relative;}
.hero .kicker{display:inline-block;font-weight:700;font-size:16px;color:var(--clay-2);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);border-radius:100px;padding:6px 14px;margin-bottom:18px;}
.hero h1{font-weight:900;font-size:clamp(44px,7vw,86px);line-height:1.12;}
.hero h1 .acc{color:var(--clay-2);}
.hero .name{font-weight:800;font-size:clamp(20px,2.4vw,26px);margin-top:14px;color:#fff;}
.hero .sub{font-weight:500;font-size:20px;line-height:1.75;color:rgba(255,255,255,.85);margin:18px 0 32px;max-width:560px;}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;}
.orb{position:absolute;border-radius:50%;pointer-events:none;filter:blur(120px);}
.orb-g{width:460px;height:460px;background:#1d7a59;top:-150px;left:-110px;opacity:.4;}
.orb-c{width:380px;height:380px;background:var(--clay);bottom:-160px;right:-120px;opacity:.14;}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr;gap:44px;}.hero{padding:56px 0 72px;}}

/* phone frame around a real screenshot of the product (e.g. tennis/app-session.webp, 540×1132) */
.phone{justify-self:center;width:min(320px,82vw);aspect-ratio:34/69;border-radius:44px;padding:10px;
  background:linear-gradient(150deg,#2a2c2e,#0a0b0c 60%);
  box-shadow:0 50px 100px rgba(0,0,0,.5),0 0 0 2px rgba(255,255,255,.05),0 0 120px rgba(199,85,47,.18);
  animation:float 6.5s ease-in-out infinite alternate;}
@keyframes float{from{transform:translateY(-8px);}to{transform:translateY(10px);}}
.pscreen{width:100%;height:100%;border-radius:34px;overflow:hidden;background:var(--paper);}
.pscreen img{width:100%;height:100%;object-fit:cover;object-position:top;display:block;}

/* stats strip */
.stats{background:var(--green);color:#fff;padding:22px 0;}
.stats .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 40px;}
.stat{display:flex;align-items:baseline;gap:10px;font-weight:600;font-size:17px;opacity:.94;}
.stat b{font-weight:900;font-size:28px;color:var(--clay-2);}

/* the 3-level ladder */
.ladder{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px;align-items:stretch;}
.rung{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px 26px;position:relative;}
.rung .lv{font-weight:900;font-size:15px;color:var(--ink-2);}
.rung h3{font-weight:900;font-size:28px;margin:4px 0 8px;}
.rung p{font-weight:500;font-size:16px;color:var(--ink-2);line-height:1.7;}
.rung .chip{position:absolute;top:22px;left:22px;font-weight:700;font-size:13px;border-radius:100px;padding:4px 12px;
  background:var(--paper-2);color:var(--ink-2);}
.rung.on{background:var(--green);color:#fff;border-color:var(--green);box-shadow:0 24px 60px rgba(14,74,54,.22);}
.rung.on .lv,.rung.on p{color:rgba(255,255,255,.8);}
.rung.on .chip{background:var(--clay);color:#fff;}
@media(max-width:820px){.ladder{grid-template-columns:1fr;}}

/* feature cards */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px;}
.feat{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px 26px;
  transition:transform .2s var(--ease),box-shadow .2s,border-color .2s;}
.feat:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(40,30,20,.10);border-color:var(--clay);}
.feat .ic{width:52px;height:52px;border-radius:14px;background:var(--green);color:#fff;display:flex;align-items:center;
  justify-content:center;font-size:24px;margin-bottom:16px;}
.feat.clay .ic{background:var(--clay);}
.feat h3{font-weight:800;font-size:22px;margin-bottom:6px;}
.feat p{font-weight:500;font-size:16px;color:var(--ink-2);line-height:1.7;}
@media(max-width:860px){.feat-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.feat-grid{grid-template-columns:1fr;}}

/* the level test («تو کدوم سطحی؟») */
.lt{background:var(--card);border:1px solid var(--line);border-radius:26px;padding:30px 28px;max-width:760px;
  margin:36px auto 0;box-shadow:0 24px 60px rgba(40,30,20,.08);}
.lt-bar{height:6px;border-radius:6px;background:var(--paper-2);overflow:hidden;margin-bottom:26px;}
.lt-fill{height:100%;background:var(--clay);border-radius:6px;transition:width .5s var(--ease);}
.lt-q{font-weight:800;font-size:clamp(21px,2.6vw,26px);line-height:1.5;}
.lt-hint{font-weight:500;font-size:15px;color:var(--ink-2);margin-top:6px;line-height:1.7;}
.lt-list{margin:12px 0 0;padding-right:20px;font-weight:500;font-size:15px;color:var(--ink-2);line-height:1.8;}
.lt-opts{display:grid;gap:10px;margin-top:22px;}
.lt-opt{font-family:var(--fa);text-align:right;font-weight:700;font-size:18px;color:var(--ink);background:var(--paper);
  border:1.5px solid var(--line);border-radius:16px;padding:15px 18px;cursor:pointer;
  transition:border-color .15s,background .15s,transform .15s var(--ease);}
.lt-opt:hover{border-color:var(--clay);transform:translateY(-1px);}
.lt-opt.sel{border-color:var(--clay);background:rgba(199,85,47,.08);}
.lt-opt:focus-visible,.lt-link:focus-visible,.btn:focus-visible{outline:3px solid var(--clay);outline-offset:3px;}
/* The question and result titles take focus only so screen readers announce them; draw no box. */
.lt-q:focus,.lt-title:focus{outline:none;}
.feat .ic svg{width:27px;height:27px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.lt-foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px;min-height:24px;}
.lt-link{font-family:var(--fa);background:none;border:none;color:var(--ink-2);font-weight:700;font-size:15px;cursor:pointer;}
.lt-link:hover{color:var(--clay);}
.lt-intro{text-align:center;}
.lt-intro .lt-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:14px 0 24px;}
.lt-intro .lt-meta span{font-weight:700;font-size:14px;background:var(--paper-2);border-radius:100px;padding:5px 12px;}
.lt-res-top{display:flex;align-items:center;gap:18px;}
.lt-badge{width:88px;height:88px;border-radius:24px;background:var(--green);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:900;font-size:44px;flex-shrink:0;box-shadow:0 14px 34px rgba(14,74,54,.25);}
.lt-badge.soon{background:var(--paper-2);color:var(--ink);box-shadow:none;border:1px solid var(--line);}
.lt-kick{font-weight:700;font-size:15px;color:var(--clay);}
.lt-title{font-weight:900;font-size:clamp(26px,3.4vw,34px);line-height:1.3;}
.lt-p{font-weight:500;font-size:17px;color:var(--ink-2);line-height:1.8;margin-top:16px;}
.lt-why{list-style:none;margin-top:14px;display:grid;gap:8px;}
.lt-why li{font-weight:600;font-size:16px;line-height:1.7;padding-right:22px;position:relative;}
.lt-why li::before{content:"";position:absolute;right:0;top:.75em;width:10px;height:2px;background:var(--clay);}
.lt-note{margin-top:14px;background:var(--paper);border:1px solid var(--line);border-right:4px solid var(--green);
  border-radius:14px;padding:13px 16px;font-weight:500;font-size:16px;line-height:1.75;}
.lt-warn{border-right-color:var(--clay);background:rgba(199,85,47,.07);}
.lt-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.lt-price{font-weight:700;font-size:15px;color:var(--ink-2);margin-top:12px;}

/* how it works */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px;counter-reset:s;}
.step{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px 22px;}
.step .n{width:40px;height:40px;border-radius:50%;background:var(--clay);color:#fff;font-weight:900;font-size:19px;
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.step h3{font-weight:800;font-size:19px;margin-bottom:4px;}
.step p{font-weight:500;font-size:15px;color:var(--ink-2);line-height:1.7;}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.steps{grid-template-columns:1fr;}}

/* price */
.price-card{max-width:680px;margin:36px auto 0;background:var(--card);border:1px solid var(--line);border-radius:28px;
  padding:42px 36px 34px;text-align:center;box-shadow:0 24px 60px rgba(40,30,20,.10);}
.price-eq{font-weight:700;font-size:17px;color:var(--ink-2);}
.price-num{font-family:var(--disp);font-weight:900;font-size:96px;line-height:1;color:var(--green);margin:6px 0;direction:ltr;}
.price-term{font-weight:800;font-size:21px;}
.price-note{display:inline-block;font-weight:700;font-size:15px;color:var(--clay);background:rgba(199,85,47,.10);
  border-radius:100px;padding:7px 16px;margin-top:12px;}
.inc{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 28px;margin:30px auto 28px;text-align:right;max-width:560px;}
.inc li{display:flex;align-items:flex-start;gap:12px;font-weight:600;font-size:17px;line-height:1.6;}
.inc .ck{width:26px;height:26px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:900;font-size:14px;flex-shrink:0;}
.price-small{margin-top:14px;font-weight:500;font-size:15px;color:var(--ink-2);}
.price-small a{color:var(--clay);font-weight:700;}
@media(max-width:600px){.inc{grid-template-columns:1fr;}.price-card{padding:34px 22px 28px;}.price-num{font-size:80px;}}

/* author */
.author{display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:center;margin-top:8px;}
.author img{width:180px;height:180px;border-radius:26px;object-fit:cover;display:block;box-shadow:0 18px 44px rgba(40,30,20,.18);}
.author p{font-weight:500;font-size:18px;color:var(--ink-2);line-height:1.8;margin-top:10px;}
@media(max-width:640px){.author{grid-template-columns:1fr;}.author img{width:140px;height:140px;}}

/* faq */
.faq{max-width:820px;margin:36px auto 0;}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{list-style:none;cursor:pointer;padding:22px 0;font-weight:700;font-size:20px;display:flex;
  justify-content:space-between;align-items:center;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';color:var(--clay);font-weight:700;font-size:28px;}
.faq details[open] summary::after{content:'−';}
.faq p{padding:0 0 22px;font-weight:500;font-size:17px;color:var(--ink-2);line-height:1.8;}
.faq p a{color:var(--clay);font-weight:700;}

/* final call + footer */
.cta{background:radial-gradient(120% 120% at 50% 0%,#155b43,var(--green) 60%,var(--green-dk));color:#fff;text-align:center;padding:96px 0;}
.cta h2{font-weight:900;font-size:clamp(36px,5.6vw,68px);line-height:1.2;}
.cta h2 .acc{color:var(--clay-2);}
.cta .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px;}
.foot{background:var(--green-dk);color:rgba(255,255,255,.7);padding:40px 0;font-size:15px;}
.foot .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center;}
.foot .links{display:flex;flex-wrap:wrap;gap:10px 22px;}
.foot a{color:rgba(255,255,255,.82);font-weight:600;}
.foot a:hover{color:#fff;}

/* extras first used by the testing app page (/tennis-testing/, 2026-09-15) */
.callout{max-width:820px;margin-top:28px;background:var(--card);border:1px solid var(--line);border-right:4px solid var(--clay);
  border-radius:16px;padding:16px 20px;font-weight:600;font-size:17px;line-height:1.8;}
.tgroups{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px;}
.tgroup{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px 22px;}
.tgroup h3{font-weight:900;font-size:22px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.tgroup .chip{font-weight:700;font-size:13px;border-radius:100px;padding:3px 11px;background:var(--green);color:#fff;white-space:nowrap;}
.tgroup.soon{background:var(--paper-2);}
.tgroup.soon .chip{background:var(--clay);}
.tlist{list-style:none;display:grid;gap:9px;margin-top:14px;}
.tlist li{font-weight:600;font-size:16px;line-height:1.6;padding-right:18px;position:relative;}
.tlist li::before{content:"";position:absolute;right:0;top:.7em;width:8px;height:8px;border-radius:50%;background:var(--green);}
.tgroup.soon .tlist li{color:var(--ink-2);}
.tgroup.soon .tlist li::before{background:var(--clay);}
@media(max-width:1000px){.tgroups{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.tgroups{grid-template-columns:1fr;}}
.steps.three{grid-template-columns:repeat(3,1fr);}
@media(max-width:900px){.steps.three{grid-template-columns:1fr;}}
.shots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;margin-top:44px;justify-items:center;}
.shot{text-align:center;}
.shot .phone{width:min(300px,78vw);animation:none;}
.shot figcaption{font-weight:700;font-size:16px;color:var(--ink-2);margin-top:16px;}
.fine{font-weight:500;font-size:14px;color:var(--ink-2);margin-top:20px;text-align:center;}
@media(max-width:640px){.shots{grid-template-columns:1fr;}}

/* motion */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.visible{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
  html{scroll-behavior:auto;}
}