/* ===========================================================================
   MehdiSEO — design system
   Brand: #FAC80F amber · #3C3C3C charcoal · #5A5A5A · #DCDCDC · #F0F0F0
   Signature: the logo lattice — hairline geometry borrowed from the monogram
   =========================================================================== */

/* ---------- 1. tokens ---------------------------------------------------- */
:root{
  --amber:#FAC80F;
  --amber-deep:#E3B300;
  --amber-soft:rgba(250,200,15,.12);

  --ink:#3C3C3C;
  --ink-2:#5A5A5A;
  --mist:#DCDCDC;
  --fog:#F0F0F0;

  --f-display:'Sora','Inter',system-ui,sans-serif;
  --f-body:'Inter',system-ui,-apple-system,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,monospace;

  --step--1:clamp(.78rem,.75rem + .15vw,.86rem);
  --step-0:clamp(.95rem,.9rem + .22vw,1.04rem);
  --step-1:clamp(1.1rem,1rem + .45vw,1.3rem);
  --step-2:clamp(1.35rem,1.15rem + .9vw,1.85rem);
  --step-3:clamp(1.75rem,1.35rem + 1.7vw,2.7rem);
  --step-4:clamp(2.2rem,1.5rem + 3vw,4rem);
  --step-5:clamp(2.7rem,1.6rem + 4.6vw,5.4rem);

  --gut:clamp(1.1rem,4vw,2rem);
  --sec:clamp(4rem,9vw,7.5rem);
  --maxw:1220px;
  --r:14px;
  --r-sm:9px;

  --ease:cubic-bezier(.2,.7,.25,1);
  --dur:.45s;
}

html[data-theme="dark"]{
  --bg:#232323;
  --bg-2:#1C1C1C;
  --surface:#2B2B2B;
  --surface-2:#333;
  --line:#3E3E3E;
  --line-soft:rgba(255,255,255,.07);
  --text:#F0F0F0;
  --text-2:#B9B9B9;
  --muted:#8E8E8E;
  --accent:#FAC80F;
  --accent-text:#FAC80F;
  --on-accent:#232323;
  --lattice-op:.042;
  --shadow:0 18px 50px -22px rgba(0,0,0,.85);
}
html[data-theme="light"]{
  --bg:#F4F4F4;
  --bg-2:#EAEAEA;
  --surface:#FFF;
  --surface-2:#F7F7F7;
  --line:#DCDCDC;
  --line-soft:rgba(60,60,60,.10);
  --text:#2E2E2E;
  --text-2:#4E4E4E;
  --muted:#767676;
  --accent:#FAC80F;
  --accent-text:#7A5C00;      /* amber is unreadable as text on white */
  --on-accent:#2E2E2E;
  --lattice-op:.045;
  --shadow:0 18px 44px -26px rgba(60,60,60,.5);
}

html[dir="rtl"]{
  --f-display:'Vazirmatn',system-ui,sans-serif;
  --f-body:'Vazirmatn',system-ui,sans-serif;
}

/* ---------- 2. base ------------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--f-body);font-size:var(--step-0);line-height:1.72;
  font-feature-settings:"kern","liga";-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
html[dir="rtl"] body{line-height:2}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.14;margin:0;letter-spacing:-.02em}
html[dir="rtl"] h1,html[dir="rtl"] h2,html[dir="rtl"] h3,html[dir="rtl"] h4{letter-spacing:0;line-height:1.45;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--amber);color:#232323}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:3px}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;inset-inline-start:-999px;top:0;z-index:200;background:var(--amber);color:#232323;padding:.7rem 1.1rem}
.skip:focus{inset-inline-start:.5rem;top:.5rem}

/* numerals stay latin & tabular inside data chips */
.mono,.stat__n,.rank,.price__now,.price__old{font-family:var(--f-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- 3. lattice signature ---------------------------------------- */
.lattice-field{
  position:absolute;inset:0;pointer-events:none;
  background:url('/assets/img/lattice.svg') repeat;
  background-size:300px auto;
  opacity:var(--lattice-op);
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 22%,#000 72%,transparent);
          mask-image:linear-gradient(180deg,transparent,#000 22%,#000 72%,transparent);
}

/* the chevron notch — lifted straight out of the monogram's V */
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--f-mono);font-size:var(--step--1);
  letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  margin-bottom:1.1rem;
}
html[dir="rtl"] .eyebrow{font-family:var(--f-body);letter-spacing:0;font-size:.82rem;font-weight:500}
.eyebrow::before{
  content:"";inline-size:20px;block-size:13px;flex:none;
  background:var(--accent);
  clip-path:polygon(0 0,14% 0,50% 74%,86% 0,100% 0,50% 100%);
}

/* ---------- 4. buttons --------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.86rem 1.5rem;border-radius:var(--r-sm);
  font-family:var(--f-display);font-weight:600;font-size:var(--step-0);
  line-height:1;border:1px solid transparent;
  transition:transform .18s var(--ease),background .2s,border-color .2s,color .2s;
  white-space:nowrap;
}
html[dir="rtl"] .btn{font-family:var(--f-body);font-weight:700}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--solid{background:var(--amber);color:#232323}
.btn--solid:hover{background:var(--amber-deep)}
.btn--ghost{border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--amber);color:var(--accent-text)}
.btn--sm{padding:.6rem 1.05rem;font-size:var(--step--1)}
.btn--lg{padding:1.05rem 2rem;font-size:var(--step-1)}
.btn--block{width:100%}

/* ---------- 5. header ---------------------------------------------------- */
.hdr{
  position:sticky;top:0;z-index:80;
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .3s,border-color .3s;
}
.hdr.is-stuck{background:color-mix(in srgb,var(--bg) 96%,transparent);border-color:var(--line)}
.hdr__lattice{display:none}
.hdr__in{display:flex;align-items:center;gap:1.5rem;min-height:70px}

.brand{display:flex;align-items:center;gap:.65rem;flex:none;margin-inline-end:auto}
.brand__mark{width:40px;height:24px;color:var(--amber);overflow:visible}
.brand__mark path{stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 1.5s var(--ease) forwards}
.brand__mark path:nth-child(2){animation-delay:.35s}
@keyframes draw{to{stroke-dashoffset:0}}
.brand__word{font-family:var(--f-display);font-weight:400;font-size:1.06rem;letter-spacing:.01em}
.brand__word b{font-weight:700}

.nav{display:flex;align-items:center;gap:1.6rem}
.nav__list{display:flex;align-items:center;gap:.35rem}
.nav__link{
  position:relative;display:block;padding:.5rem .8rem;border-radius:var(--r-sm);
  font-size:var(--step--1);font-weight:500;color:var(--text-2);transition:color .2s;
}
html[dir="rtl"] .nav__link{font-size:.92rem}
.nav__link::after{
  content:"";position:absolute;inset-inline:.8rem;bottom:.18rem;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:var(--o,left);
  transition:transform .28s var(--ease);
}
html[dir="rtl"] .nav__link::after{--o:right}
.nav__link:hover,.nav__link.is-active{color:var(--text)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}

.nav__tools{display:flex;align-items:center;gap:.5rem}

.langsw{position:relative}
.langsw__btn{display:flex;align-items:center;gap:.4rem;padding:.5rem .7rem;border-radius:var(--r-sm);font-size:var(--step--1);color:var(--text-2);transition:color .2s,background .2s}
.langsw__btn:hover{color:var(--text);background:var(--surface)}
.langsw__menu{
  position:absolute;inset-inline-end:0;top:calc(100% + .5rem);min-width:150px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:.35rem;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s,transform .2s,visibility .2s;z-index:5;
}
.langsw.is-open .langsw__menu{opacity:1;visibility:visible;transform:none}
.langsw__menu a{display:block;padding:.5rem .75rem;border-radius:6px;font-size:var(--step--1);color:var(--text-2)}
.langsw__menu a:hover{background:var(--surface-2);color:var(--text)}
.langsw__menu a.is-active{color:var(--accent-text);font-weight:600}

.themesw{display:grid;place-items:center;width:38px;height:38px;border-radius:var(--r-sm);color:var(--text-2);transition:color .2s,background .2s}
.themesw:hover{color:var(--text);background:var(--surface)}
.themesw svg{grid-area:1/1;transition:opacity .25s,transform .35s var(--ease)}
html[data-theme="dark"] .themesw__moon{opacity:0;transform:rotate(-40deg) scale(.6)}
html[data-theme="light"] .themesw__sun{opacity:0;transform:rotate(40deg) scale(.6)}

.burger{display:none;flex-direction:column;gap:5px;padding:.6rem;flex:none}
.burger span{display:block;width:22px;height:2px;background:var(--text);transition:transform .3s var(--ease),opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:920px){
  .burger{display:flex}
  .nav{
    position:fixed;inset:70px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    padding:1rem var(--gut) 1.6rem;
    clip-path:inset(0 0 100% 0);transition:clip-path .4s var(--ease);
  }
  .nav.is-open{clip-path:inset(0 0 0 0)}
  .nav__list{flex-direction:column;align-items:stretch}
  .nav__link{padding:.85rem .2rem;font-size:1.05rem;border-bottom:1px solid var(--line-soft)}
  .nav__link::after{inset-inline:.2rem}
  .nav__tools{margin-top:1.1rem;justify-content:space-between}
}

/* ---------- 6. sections -------------------------------------------------- */
.sec{position:relative;padding-block:var(--sec)}
.sec--tint{background:var(--bg-2)}
.sec--edge{border-top:1px solid var(--line-soft)}
.sec__head{max-width:62ch;margin-bottom:clamp(2.2rem,5vw,3.6rem)}
.sec__title{font-size:var(--step-3)}
.sec__lede{margin-top:1.1rem;color:var(--text-2);font-size:var(--step-1);line-height:1.75}
.sec__head--split{max-width:none;display:grid;gap:1.4rem;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);align-items:end}
@media (max-width:800px){.sec__head--split{grid-template-columns:1fr;align-items:start}}

/* ---------- 7. hero ------------------------------------------------------ */
.hero{position:relative;overflow:hidden;padding-block:clamp(3rem,6.5vw,5rem) clamp(2.5rem,6vw,4.5rem)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(2rem,5vw,4rem);align-items:center;position:relative}
@media (max-width:940px){.hero__grid{grid-template-columns:1fr}}
.hero__title{font-size:clamp(2.2rem,1.45rem + 3.1vw,4.05rem);letter-spacing:-.035em;text-wrap:balance}
html[dir="rtl"] .hero__title{letter-spacing:0;font-size:clamp(1.9rem,1.3rem + 2.4vw,3.2rem)}
/* the accent underline is painted as a background so it survives line breaks */
.hero__title em{
  font-style:normal;color:var(--accent-text);
  background-image:linear-gradient(var(--amber),var(--amber));
  background-repeat:no-repeat;background-size:100% .09em;background-position:0 92%;
  -webkit-box-decoration-break:clone;box-decoration-break:clone;
}
html[dir="rtl"] .hero__title em{background-position:0 100%;padding-bottom:.06em}
.hero__lede{margin-top:1.5rem;max-width:52ch;font-size:var(--step-1);color:var(--text-2)}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2.2rem}
.hero__note{margin-top:1.4rem;font-size:var(--step--1);color:var(--muted);display:flex;align-items:center;gap:.5rem}
.hero__note b{color:var(--accent-text);font-weight:600}

/* the climb — hero signature: a rank trajectory drawn with lattice geometry */
.climb{position:relative;aspect-ratio:1/.86;width:100%}
.climb svg{width:100%;height:100%;overflow:visible}
.climb .cl-grid{stroke:var(--line);stroke-width:1}
.climb .cl-lbl{fill:var(--muted);font-family:var(--f-mono);font-size:11px}
.climb .cl-path{fill:none;stroke:var(--amber);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:900;stroke-dashoffset:900}
.climb.is-in .cl-path{animation:draw 2.4s var(--ease) .2s forwards}
.climb .cl-dot{fill:var(--amber);opacity:0}
.climb.is-in .cl-dot{animation:pop .5s var(--ease) forwards}
@keyframes pop{from{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}
.climb .cl-area{fill:var(--amber);opacity:0;transition:opacity 1s .9s}
.climb.is-in .cl-area{opacity:.09}
.climb__badge{
  position:absolute;inset-inline-end:2%;top:4%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:.55rem .8rem;font-family:var(--f-mono);font-size:var(--step--1);
  box-shadow:var(--shadow);
}
.climb__badge b{color:var(--accent-text)}

/* ---------- 8. ledger (stat strip) --------------------------------------- */
.ledger{border-block:1px solid var(--line);background:var(--bg-2)}
.ledger__in{display:grid;grid-template-columns:repeat(5,1fr)}
@media (max-width:860px){.ledger__in{grid-template-columns:repeat(2,1fr)}}
.stat{padding:1.6rem 1.2rem;border-inline-start:1px solid var(--line-soft)}
.stat:first-child{border-inline-start:0}
@media (max-width:860px){.stat:nth-child(odd){border-inline-start:0}.stat{border-top:1px solid var(--line-soft)}}
.stat__n{display:block;font-size:var(--step-2);font-weight:500;color:var(--accent-text);line-height:1}
.stat__l{display:block;margin-top:.5rem;font-size:var(--step--1);color:var(--muted);line-height:1.5}

/* ---------- 9. cards ----------------------------------------------------- */
.grid{display:grid;gap:clamp(1rem,2.4vw,1.6rem)}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:980px){.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:660px){.grid--3,.grid--2{grid-template-columns:1fr}}

.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);padding:clamp(1.4rem,2.6vw,2rem);
  transition:border-color .3s,transform .3s var(--ease);
  overflow:hidden;
}
.card::before{ /* the monogram notch, top-inline-end */
  content:"";position:absolute;top:0;inset-inline-end:1.6rem;
  inline-size:26px;block-size:15px;background:var(--amber);opacity:0;
  clip-path:polygon(0 0,14% 0,50% 74%,86% 0,100% 0,50% 100%);
  transition:opacity .3s;
}
.card:hover{border-color:color-mix(in srgb,var(--amber) 55%,var(--line));transform:translateY(-3px)}
.card:hover::before{opacity:1}
.card__k{font-family:var(--f-mono);font-size:var(--step--1);color:var(--muted)}
.card__t{margin-top:.7rem;font-size:var(--step-1)}
.card__d{margin-top:.7rem;color:var(--text-2);font-size:var(--step-0)}
.card__link{display:inline-flex;align-items:center;gap:.4rem;margin-top:1.2rem;font-size:var(--step--1);font-weight:600;color:var(--accent-text)}
.card__link svg{transition:transform .25s var(--ease)}
html[dir="rtl"] .card__link svg{transform:scaleX(-1)}
.card:hover .card__link svg{transform:translateX(4px)}
html[dir="rtl"] .card:hover .card__link svg{transform:scaleX(-1) translateX(4px)}
.card--flag{border-color:color-mix(in srgb,var(--amber) 42%,var(--line));background:linear-gradient(180deg,var(--amber-soft),transparent 42%),var(--surface)}

.tag{
  display:inline-block;padding:.28rem .62rem;border-radius:99px;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--line);color:var(--muted);
}
html[dir="rtl"] .tag{font-family:var(--f-body);letter-spacing:0;text-transform:none;font-size:.75rem}
.tag--live{border-color:color-mix(in srgb,var(--amber) 60%,transparent);color:var(--accent-text)}
.tag--soon{border-style:dashed}
.soon-dot{font-style:normal;font-size:.72em;color:var(--accent-text);opacity:.85}

/* ---------- 10. course page ---------------------------------------------- */
.chero{position:relative;overflow:hidden;padding-block:clamp(3rem,7vw,5.5rem) clamp(2.5rem,5vw,4rem);border-bottom:1px solid var(--line-soft)}
.chero__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(2rem,4vw,3.5rem);align-items:start;position:relative}
@media (max-width:940px){.chero__grid{grid-template-columns:1fr}}
.chero__title{font-size:var(--step-4);margin-top:.9rem}
.chero__lede{margin-top:1.3rem;color:var(--text-2);font-size:var(--step-1);max-width:56ch}

.buybox{position:sticky;top:92px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.3rem,2.5vw,1.8rem);box-shadow:var(--shadow)}
@media (max-width:940px){.buybox{position:static}}
.price{display:flex;align-items:baseline;gap:.7rem;flex-wrap:wrap}
.price__now{font-size:var(--step-2);font-weight:500;color:var(--text)}
.price__old{font-size:var(--step-0);color:var(--muted);text-decoration:line-through}
.price__cur{font-size:var(--step--1);color:var(--muted)}
.price__ask{font-size:var(--step-1);font-family:var(--f-display);font-weight:600}
html[dir="rtl"] .price__ask{font-family:var(--f-body);font-weight:700}
.buybox__note{margin-top:.6rem;font-size:var(--step--1);color:var(--muted)}
.buybox .btn{margin-top:1.2rem}
.spec{margin-top:1.4rem;border-top:1px solid var(--line-soft);padding-top:1rem}
.spec li{display:flex;justify-content:space-between;gap:1rem;padding:.5rem 0;font-size:var(--step--1);border-bottom:1px solid var(--line-soft)}
.spec li:last-child{border-bottom:0}
.spec dt,.spec .k{color:var(--muted)}
.spec .v{color:var(--text);font-weight:500;text-align:end}

/* ---------- 11. video grid + player -------------------------------------- */
.vgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(.9rem,2vw,1.4rem)}
@media (max-width:980px){.vgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.vgrid{grid-template-columns:1fr}}

.vcard{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface);transition:border-color .3s,transform .3s var(--ease)}
.vcard:hover{border-color:color-mix(in srgb,var(--amber) 55%,var(--line));transform:translateY(-3px)}
.vcard__stage{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.vcard__stage video{width:100%;height:100%;object-fit:cover;background:#000}
.vcard__poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.vcard__play{
  position:absolute;inset:0;display:grid;place-items:center;
  background:linear-gradient(180deg,rgba(35,35,35,.1),rgba(35,35,35,.6));
  transition:opacity .3s;
}
.vcard.is-playing .vcard__play{opacity:0;pointer-events:none}
.vcard__play i{
  display:grid;place-items:center;width:58px;height:58px;border-radius:50%;
  background:var(--amber);color:#232323;
  box-shadow:0 0 0 0 rgba(250,200,15,.5);transition:transform .25s var(--ease);
}
.vcard:hover .vcard__play i{transform:scale(1.08)}
.vcard__play svg{margin-inline-start:3px}
html[dir="rtl"] .vcard__play svg{margin-inline-start:0;margin-inline-end:3px;transform:scaleX(-1)}
.vcard__n{
  position:absolute;top:.7rem;inset-inline-start:.7rem;z-index:2;
  font-family:var(--f-mono);font-size:.72rem;padding:.2rem .5rem;border-radius:5px;
  background:rgba(35,35,35,.72);color:#F0F0F0;backdrop-filter:blur(4px);
}
.vcard__body{padding:1rem 1.1rem 1.2rem}
.vcard__t{font-size:var(--step-0);font-family:var(--f-display);font-weight:600}
html[dir="rtl"] .vcard__t{font-family:var(--f-body);font-weight:700}
.vcard__d{margin-top:.4rem;font-size:var(--step--1);color:var(--muted)}

/* ---------- 12. gallery mosaic + lightbox -------------------------------- */
.mosaic{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:.7rem}
.mosaic button{
  position:relative;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
  transition:transform .3s var(--ease),border-color .3s;
}
.mosaic button:nth-child(7n+1){grid-column:span 2;aspect-ratio:16/9}
@media (max-width:520px){.mosaic button:nth-child(7n+1){grid-column:span 1}}
.mosaic img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.mosaic button:hover{border-color:var(--amber);transform:translateY(-2px)}
.mosaic button:hover img{transform:scale(1.05)}

.lightbox{position:fixed;inset:0;z-index:120;display:grid;place-items:center;background:rgba(20,20,20,.94);backdrop-filter:blur(8px);padding:clamp(1rem,5vw,3rem)}
.lightbox[hidden]{display:none}
.lightbox img{max-width:min(1200px,94vw);max-height:82vh;object-fit:contain;border-radius:var(--r-sm)}
.lightbox__x{position:absolute;top:1rem;inset-inline-end:1.2rem;font-size:2.2rem;line-height:1;color:#F0F0F0;opacity:.8}
.lightbox__x:hover{opacity:1}
.lightbox__nav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;font-size:2rem;line-height:1;color:#F0F0F0;background:rgba(255,255,255,.09)}
.lightbox__nav:hover{background:var(--amber);color:#232323}
.lightbox__nav--prev{inset-inline-start:1rem}
.lightbox__nav--next{inset-inline-end:1rem}
html[dir="rtl"] .lightbox__nav{transform:translateY(-50%) scaleX(-1)}
.lightbox__count{position:absolute;bottom:1.3rem;inset-inline:0;text-align:center;font-family:var(--f-mono);font-size:var(--step--1);color:#B9B9B9}

/* ---------- 13. accordion (modules & faq) -------------------------------- */
.acc{border-top:1px solid var(--line)}
.acc__item{border-bottom:1px solid var(--line)}
.acc__btn{
  display:flex;align-items:center;gap:1rem;width:100%;text-align:start;
  padding:1.15rem .2rem;font-family:var(--f-display);font-weight:600;font-size:var(--step-1);
}
html[dir="rtl"] .acc__btn{font-family:var(--f-body);font-weight:700}
.acc__n{font-family:var(--f-mono);font-size:var(--step--1);color:var(--accent-text);flex:none;min-width:2.2em;font-weight:400}
.acc__ic{margin-inline-start:auto;flex:none;width:22px;height:22px;position:relative;transition:transform .3s var(--ease)}
.acc__ic::before,.acc__ic::after{content:"";position:absolute;inset-inline:2px;top:10px;height:2px;background:var(--accent);transition:transform .3s var(--ease)}
.acc__ic::after{transform:rotate(90deg)}
.acc__item.is-open .acc__ic::after{transform:rotate(0)}
.acc__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .38s var(--ease)}
.acc__item.is-open .acc__panel{grid-template-rows:1fr}
.acc__panel>div{overflow:hidden}
.acc__panel p{padding:0 0 1.3rem;color:var(--text-2);max-width:74ch}
.acc__panel .bullets{padding:0 0 1.3rem}
.bullets li{position:relative;padding-inline-start:1.4rem;margin-bottom:.5rem;color:var(--text-2)}
.bullets li::before{content:"";position:absolute;inset-inline-start:0;top:.62em;inline-size:11px;block-size:7px;background:var(--amber);clip-path:polygon(0 0,14% 0,50% 74%,86% 0,100% 0,50% 100%)}

/* ---------- 14. timeline (about) ----------------------------------------- */
.tl{position:relative;padding-inline-start:2.2rem}
.tl::before{content:"";position:absolute;inset-inline-start:6px;top:.6rem;bottom:.6rem;width:1px;background:var(--line)}
.tl__item{position:relative;padding-bottom:2.4rem}
.tl__item:last-child{padding-bottom:0}
.tl__item::before{content:"";position:absolute;inset-inline-start:-2.2rem;top:.45rem;inline-size:13px;block-size:13px;margin-inline-start:.5px;background:var(--bg);border:2px solid var(--amber);border-radius:50%}
.tl__y{font-family:var(--f-mono);font-size:var(--step--1);color:var(--accent-text)}
.tl__t{margin-top:.3rem;font-size:var(--step-1)}
.tl__d{margin-top:.5rem;color:var(--text-2)}

/* ---------- 15. quote / promise ------------------------------------------ */
.promise{position:relative;overflow:hidden;background:var(--bg-2);border-block:1px solid var(--line)}
.promise__in{position:relative;max-width:70ch;margin-inline:auto;text-align:center}
.promise__q{font-size:var(--step-3);line-height:1.35;font-family:var(--f-display);font-weight:600}
html[dir="rtl"] .promise__q{font-family:var(--f-body);font-weight:700;line-height:1.7}
.promise__q b{color:var(--accent-text);font-weight:inherit}
.promise__by{margin-top:1.6rem;display:flex;align-items:center;justify-content:center;gap:.7rem;font-size:var(--step--1);color:var(--muted)}
.promise__by::before{content:"";inline-size:26px;block-size:1px;background:var(--line)}

/* ---------- 16. contact form --------------------------------------------- */
.field{margin-bottom:1.1rem}
.field label{display:block;font-size:var(--step--1);color:var(--muted);margin-bottom:.4rem}
.field input,.field textarea,.field select{
  width:100%;padding:.85rem 1rem;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);color:var(--text);
  font:inherit;font-size:var(--step-0);transition:border-color .2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--amber)}
.contact__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
@media (max-width:620px){.contact__row{grid-template-columns:1fr}}

.reach{display:grid;gap:.8rem}
.reach a{display:flex;align-items:center;gap:.9rem;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);transition:border-color .25s,transform .25s var(--ease)}
.reach a:hover{border-color:var(--amber);transform:translateY(-2px)}
.reach i{display:grid;place-items:center;width:38px;height:38px;flex:none;border-radius:9px;background:var(--amber-soft);color:var(--accent-text)}
.reach b{display:block;font-family:var(--f-display);font-weight:600;font-size:var(--step-0)}
html[dir="rtl"] .reach b{font-family:var(--f-body);font-weight:700}
.reach span{font-size:var(--step--1);color:var(--muted)}

/* ---------- 17. footer --------------------------------------------------- */
.ftr{position:relative;overflow:hidden;background:var(--bg-2);border-top:1px solid var(--line);padding-block:clamp(3rem,6vw,4.5rem) 0}
.ftr__lattice{
  position:absolute;inset:0;pointer-events:none;
  background:url('/assets/img/lattice.svg') repeat;background-size:300px auto;
  opacity:calc(var(--lattice-op) * .8);
  -webkit-mask-image:linear-gradient(0deg,#000,transparent 78%);mask-image:linear-gradient(0deg,#000,transparent 78%);
}
.ftr .wrap{position:relative}
.ftr__top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);gap:clamp(2rem,5vw,4rem)}
@media (max-width:880px){.ftr__top{grid-template-columns:1fr}}
.ftr__mark{width:56px;height:34px;color:var(--amber);overflow:visible}
.ftr__tag{margin-top:1.1rem;max-width:34ch;color:var(--text-2);font-size:var(--step--1)}
.ftr__social{display:flex;gap:.5rem;margin-top:1.4rem}
.ftr__social a{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);border-radius:9px;color:var(--text-2);transition:border-color .25s,color .25s}
.ftr__social a:hover{border-color:var(--amber);color:var(--accent-text)}

.ftr__cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}
@media (max-width:600px){.ftr__cols{grid-template-columns:1fr 1fr}}
.ftr__col h3{font-size:var(--step--1);font-family:var(--f-mono);font-weight:400;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:.9rem}
html[dir="rtl"] .ftr__col h3{font-family:var(--f-body);letter-spacing:0;text-transform:none;font-weight:600}
.ftr__col-2{margin-top:1.6rem}
.ftr__col li{margin-bottom:.55rem}
.ftr__col a{font-size:var(--step--1);color:var(--text-2);transition:color .2s}
.ftr__col a:hover{color:var(--accent-text)}

.ftr__bar{margin-top:clamp(2.5rem,5vw,3.5rem);border-top:1px solid var(--line-soft);padding-block:1.3rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:var(--step--1);color:var(--muted)}
.ftr__langs a:hover{color:var(--accent-text)}
.ftr__langs i{margin-inline:.5rem;font-style:normal;opacity:.45}
.ftr__langs [aria-current]{color:var(--text)}

/* ---------- 18. floating telegram --------------------------------------- */
.tg-fab{
  position:fixed;inset-block-end:1.2rem;inset-inline-end:1.2rem;z-index:90;
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.8rem 1.15rem;border-radius:99px;
  background:var(--amber);color:#232323;font-weight:600;font-size:var(--step--1);
  box-shadow:0 10px 30px -10px rgba(250,200,15,.55);
  transform:translateY(120%);transition:transform .45s var(--ease),background .2s;
}
.tg-fab.is-in{transform:none}
.tg-fab:hover{background:var(--amber-deep)}
@media (max-width:520px){.tg-fab span{display:none}.tg-fab{padding:.85rem}}

/* ---------- 19. reveal --------------------------------------------------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal-stagger]>*{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal-stagger].is-in>*{opacity:1;transform:none}
[data-reveal-stagger].is-in>*:nth-child(2){transition-delay:.08s}
[data-reveal-stagger].is-in>*:nth-child(3){transition-delay:.16s}
[data-reveal-stagger].is-in>*:nth-child(4){transition-delay:.24s}
[data-reveal-stagger].is-in>*:nth-child(5){transition-delay:.32s}
[data-reveal-stagger].is-in>*:nth-child(6){transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  [data-reveal],[data-reveal-stagger]>*{opacity:1;transform:none}
  .brand__mark path,.climb .cl-path{stroke-dashoffset:0}
  .climb .cl-dot{opacity:1}
  .tg-fab{transform:none}
}

/* ---------- 20. utilities ------------------------------------------------ */
.mt-0{margin-top:0}
.mt-1{margin-top:.8rem}
.mt-2{margin-top:1.6rem}
.mt-3{margin-top:2.6rem}
.center{text-align:center}
.muted{color:var(--muted)}
.lede{font-size:var(--step-1);color:var(--text-2)}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.narrow{max-width:72ch}
.ltr{direction:ltr;unicode-bidi:isolate}

/* ---------- 21. RTL numeral & rhythm corrections ------------------------ */
/* JetBrains Mono has no Persian digits — fall back to Vazirmatn so numbers
   don't render with broken tracking in the RTL build. */
html[dir="rtl"] .mono,
html[dir="rtl"] .stat__n,
html[dir="rtl"] .price__now,
html[dir="rtl"] .price__old,
html[dir="rtl"] .price__cur,
html[dir="rtl"] .acc__n,
html[dir="rtl"] .tl__y,
html[dir="rtl"] .vcard__n,
html[dir="rtl"] .climb__badge,
html[dir="rtl"] .cl-lbl,
html[dir="rtl"] .lightbox__count{font-family:var(--f-body);letter-spacing:0}
html[dir="rtl"] .price__now{font-weight:700}
html[dir="rtl"] .price__old{font-size:var(--step-0);opacity:.75}
html[dir="rtl"] .stat__n{font-weight:700}

/* ---------- 22. small screens ------------------------------------------- */
@media (max-width:640px){
  .lattice-field,.ftr__lattice{background-size:165px auto}
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
  .hero__lede{font-size:var(--step-0)}
  .climb{margin-top:2.2rem}
  .buybox{position:static}
  .sec__head{margin-bottom:1.8rem}
  .acc__btn{font-size:var(--step-0);gap:.6rem}
  .tg-fab{inset-block-end:.9rem;inset-inline-end:.9rem}
}
@media (max-width:940px){
  .hero__grid{gap:1.5rem}
}
html[dir="rtl"] .price__old{font-size:var(--step-1);opacity:.6}

/* ---------- 23. PNG brand lockups --------------------------------------- */
.brand{display:flex;align-items:center;flex:none;margin-inline-end:auto}
.brand__logo{height:30px;width:auto;display:block;animation:logoIn .7s var(--ease) both}
@keyframes logoIn{from{opacity:0;transform:translateY(-4px) scale(.97)}to{opacity:1;transform:none}}
html[data-theme="dark"]  .brand__logo--light{display:none}
html[data-theme="light"] .brand__logo--dark {display:none}
@media (max-width:420px){.brand__logo{height:25px}}

.ftr__logo{width:118px;height:auto}
html[data-theme="dark"]  .ftr__logo--light{display:none}
html[data-theme="light"] .ftr__logo--dark {display:none}

.ftr__credit{order:2}
.ftr__credit a{color:var(--text-2);border-bottom:1px solid var(--line);padding-bottom:1px;transition:color .2s,border-color .2s}
.ftr__credit a:hover{color:var(--accent-text);border-color:var(--amber)}
.ftr__bar{align-items:center}
@media (max-width:700px){.ftr__bar{flex-direction:column;align-items:flex-start;gap:.5rem}.ftr__credit{order:0}}

/* ---------- 24. portrait blocks ----------------------------------------- */
.figure{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.figure img{width:100%;height:100%;object-fit:cover;display:block}
.figure--tall{aspect-ratio:4/5}
.figure--wide{aspect-ratio:16/10}
.figure::after{ /* amber corner notch, ties photos to the monogram */
  content:"";position:absolute;top:0;inset-inline-start:1.5rem;
  inline-size:30px;block-size:17px;background:var(--amber);
  clip-path:polygon(0 0,14% 0,50% 74%,86% 0,100% 0,50% 100%);
}
.figure__cap{
  position:absolute;inset-inline:0;bottom:0;padding:2.4rem 1.2rem .95rem;
  background:linear-gradient(0deg,rgba(20,20,20,.86),transparent);
  color:#F0F0F0;font-size:var(--step--1);
}

.promise__grid{display:grid;grid-template-columns:minmax(0,.62fr) minmax(0,1fr);gap:clamp(1.8rem,4vw,3.5rem);align-items:center;position:relative}
@media (max-width:800px){.promise__grid{grid-template-columns:1fr}.promise__grid .figure--tall{max-width:320px}}
.promise__grid .promise__q{font-size:var(--step-2)}
.promise__sig{display:flex;align-items:center;gap:.8rem;margin-top:1.6rem;font-size:var(--step--1);color:var(--muted)}
.promise__sig b{display:block;color:var(--text);font-family:var(--f-display);font-size:var(--step-0)}
html[dir="rtl"] .promise__sig b{font-family:var(--f-body)}
.promise__sig img{width:52px;height:52px;border-radius:50%;object-fit:cover;flex:none;border:2px solid var(--amber)}

/* ---------- 25. course covers ------------------------------------------- */
.card--course{padding:0;display:flex;flex-direction:column}
.card--course .card__cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);border-bottom:1px solid var(--line)}
.card--course .card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card--course:hover .card__cover img{transform:scale(1.045)}
.card--course .card__body{padding:clamp(1.2rem,2.4vw,1.7rem);display:flex;flex-direction:column;flex:1}
.card--course .card__badge{position:absolute;top:.8rem;inset-inline-start:.8rem;z-index:2}
.card--course .card__link{margin-top:auto;padding-top:1.2rem}
.card--course::before{display:none}

.buybox__cover{margin:calc(-1 * clamp(1.3rem,2.5vw,1.8rem)) calc(-1 * clamp(1.3rem,2.5vw,1.8rem)) 1.3rem;
  border-radius:var(--r) var(--r) 0 0;overflow:hidden;aspect-ratio:16/9;border-bottom:1px solid var(--line)}
.buybox__cover img{width:100%;height:100%;object-fit:cover}

/* ---------- 26. instructor card ----------------------------------------- */
.tutor{display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(1.2rem,3vw,2rem);align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.3rem,2.6vw,2rem)}
@media (max-width:620px){.tutor{grid-template-columns:1fr}}
.tutor__img{width:clamp(110px,16vw,168px);height:auto;aspect-ratio:1;align-self:center;border-radius:var(--r-sm);object-fit:cover;border:1px solid var(--line)}
.tutor__k{font-family:var(--f-mono);font-size:var(--step--1);color:var(--accent-text)}
html[dir="rtl"] .tutor__k{font-family:var(--f-body)}
.tutor__n{margin-top:.35rem;font-size:var(--step-2)}
.tutor__r{margin-top:.3rem;color:var(--muted);font-size:var(--step--1)}
.tutor__d{margin-top:.9rem;color:var(--text-2)}
.tutor__meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.1rem}

/* ---------- 27. CTA band ------------------------------------------------ */
.ctaband{position:relative;overflow:hidden;background:var(--amber);color:#232323;border-radius:var(--r);
  padding:clamp(1.8rem,4vw,3rem);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1.6rem;align-items:center}
@media (max-width:760px){.ctaband{grid-template-columns:1fr}}
.ctaband__lat{position:absolute;inset:0;background:url('/assets/img/lattice.svg') repeat;background-size:230px auto;
  opacity:.16;filter:brightness(0)}
.ctaband>*:not(.ctaband__lat){position:relative;text-align:start}
.ctaband__lat{z-index:0}
.ctaband h2{font-size:var(--step-2);color:#232323}
.ctaband p{margin-top:.6rem;max-width:52ch;color:#3C3C3C}
.ctaband .btn{background:#232323;color:var(--amber);border-color:#232323;white-space:nowrap}
.ctaband .btn:hover{background:#000;color:var(--amber)}

/* ---------- 28. card + price polish ------------------------------------- */
html[dir="rtl"] .card__k,
html[dir="rtl"] .stat__l,
html[dir="rtl"] .price__cur{font-family:var(--f-body);letter-spacing:0}
.card--course .price{gap:.5rem;align-items:baseline;flex-wrap:nowrap}
.card--course .price__now{font-size:var(--step-1)}
.card--course .price__old{font-size:var(--step--1)}
.card--course .card__d{min-height:0}
.figure::after{inset-inline-start:auto;inset-inline-end:1.5rem}
.sec--band{padding-block:clamp(2.6rem,5vw,4.2rem)}
.sec--edge + .sec--band{padding-top:clamp(2rem,4vw,3rem)}
.ftr__bar{padding-bottom:calc(1.3rem + env(safe-area-inset-bottom))}