/* Fonts — subset to the glyphs this site uses.
   Archivo · IBM Plex Mono · IBM Plex Sans Arabic · Estedad — all SIL OFL 1.1.
   Split arabic/latin per family so a Persian visitor never downloads the Latin-only faces. */
@font-face{font-family:'Archivo';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/archivo-400.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Archivo';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/archivo-600.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Archivo';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/archivo-700.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Archivo';font-style:normal;font-weight:800;font-display:swap;src:url('../fonts/archivo-800.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/mono-400.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/mono-500.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/mono-600.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/plexar-ar-400.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+08A0-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/plexar-la-400.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/plexar-ar-600.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+08A0-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/plexar-la-600.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/plexar-ar-700.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+08A0-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'IBM Plex Sans Arabic';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/plexar-la-700.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Estedad';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/estedad-ar-600.woff2') format('woff2');unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+08A0-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FEFF}
@font-face{font-family:'Estedad';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/estedad-la-600.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ============================================================
   TOKENS — light = drafting paper, dark = backlit CAD screen
   ============================================================ */
:root{
  --bg:#F2F3F1; --bg-alt:#E7EAE6; --surface:#FFFFFF; --surface-2:#EDF0EC;
  --border:#D3D7D1; --border-strong:#B4BAB3;
  --ink:#16191C; --ink-2:#39424B; --muted:#5B6570;
  --accent:#A65E00; --accent-soft:#F3E4CC; --accent-ink:#FFFFFF; --cad:#2C5CA8;
  --grid:rgba(22,25,28,.055);
  --shadow:0 1px 2px rgba(22,25,28,.06), 0 12px 32px -18px rgba(22,25,28,.35);
  --sheet:#FBFBF9;

  --fa:'IBM Plex Sans Arabic','Noto Sans Arabic',system-ui,Tahoma,sans-serif;
  --fa-display:'Estedad','IBM Plex Sans Arabic',system-ui,Tahoma,sans-serif;
  --en:'Archivo',system-ui,-apple-system,'Segoe UI',Helvetica,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;

  --maxw:1180px; --pad:clamp(20px,5vw,56px); --r:4px;
  --ease:cubic-bezier(.2,.7,.25,1);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0C0E11; --bg-alt:#101418; --surface:#13181D; --surface-2:#181E24;
    --border:#252D35; --border-strong:#38424D;
    --ink:#E9EDF0; --ink-2:#C2CBD3; --muted:#8B98A4;
    --accent:#F5A524; --accent-soft:rgba(245,165,36,.12); --accent-ink:#12160B; --cad:#6EA8FE;
    --grid:rgba(233,237,240,.05);
    --shadow:0 1px 2px rgba(0,0,0,.5), 0 18px 44px -22px rgba(0,0,0,.9);
    --sheet:#0F1317;
  }
}
:root[data-theme="dark"]{
  --bg:#0C0E11; --bg-alt:#101418; --surface:#13181D; --surface-2:#181E24;
  --border:#252D35; --border-strong:#38424D;
  --ink:#E9EDF0; --ink-2:#C2CBD3; --muted:#8B98A4;
  --accent:#F5A524; --accent-soft:rgba(245,165,36,.12); --accent-ink:#12160B; --cad:#6EA8FE;
  --grid:rgba(233,237,240,.05);
  --shadow:0 1px 2px rgba(0,0,0,.5), 0 18px 44px -22px rgba(0,0,0,.9);
  --sheet:#0F1317;
}

/* ============================================================
   BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--fa);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
html[data-lang="en"] body{font-family:var(--en);line-height:1.65}
img,svg{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

html[data-lang="fa"] .en{display:none !important}
html[data-lang="en"] .fa{display:none !important}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
h1,h2,h3,h4{margin:0;text-wrap:balance;line-height:1.25;font-weight:800;letter-spacing:-.01em}
html[data-lang="fa"] h1,html[data-lang="fa"] h2{font-family:var(--fa-display);font-weight:600;letter-spacing:0;line-height:1.5}
html[data-lang="fa"] h3,html[data-lang="fa"] h4{font-family:var(--fa-display);font-weight:600;letter-spacing:0;line-height:1.55}
html[data-lang="fa"] .brand-txt b,html[data-lang="fa"] .tab b,
html[data-lang="fa"] .step b,html[data-lang="fa"] details.faq summary{font-family:var(--fa-display);font-weight:600}
p{margin:0} ul{margin:0;padding:0;list-style:none}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
svg text{direction:ltr;unicode-bidi:isolate}
.figcap .mono,.foot-bottom .mono{direction:ltr;unicode-bidi:isolate}

.eyebrow{
  font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);display:flex;align-items:center;gap:11px;margin-bottom:16px;
}
html[data-lang="fa"] .eyebrow{font-family:var(--fa-display);font-weight:600;letter-spacing:.01em;text-transform:none;font-size:16px}
.eyebrow::before{
  content:"";width:26px;height:1px;background:currentColor;flex:none;
  box-shadow:0 -3px 0 -2.5px currentColor,0 3px 0 -2.5px currentColor;
  transform:scaleX(0);transform-origin:var(--o,left);transition:transform .7s var(--ease) .1s;
}
html[dir="rtl"] .eyebrow::before{--o:right}
.in .eyebrow::before,.eyebrow.in::before{transform:scaleX(1)}

.sec{padding-block:clamp(64px,8vw,112px);position:relative}
.sec--alt{background:var(--bg-alt);border-block:1px solid var(--border)}
.sec-head{max-width:64ch;margin-bottom:clamp(32px,4vw,52px)}
.sec-head h2{font-size:clamp(26px,3.6vw,42px)}
.sec-head > p{color:var(--muted);margin-top:16px;font-size:clamp(15px,1.4vw,17.5px)}

/* ============================================================
   MOTION SYSTEM
   ============================================================ */

/* 1 · word-by-word heading reveal */
.w{display:inline-block;opacity:0;transform:translateY(.5em) rotate(1deg);
   transition:opacity .5s var(--ease),transform .6s var(--ease);
   transition-delay:calc(var(--i,0)*38ms)}
.in .w{opacity:1;transform:none}

/* 2 · staggerable block reveal */
.reveal{opacity:0;transform:translateY(16px);
  transition:opacity .65s var(--ease),transform .7s var(--ease);
  transition-delay:calc(var(--i,0)*65ms)}
.reveal.in{opacity:1;transform:none}

/* 3 · line-drawing for the technical figures */
.draw [data-len]{stroke-dasharray:var(--l,none);stroke-dashoffset:var(--l,0)}
.draw.go [data-len]{animation:stroke var(--d,1.5s) var(--ease) forwards;animation-delay:var(--dl,0s)}
@keyframes stroke{to{stroke-dashoffset:0}}
.draw .fade{opacity:0}
.draw.go .fade{animation:fadein .55s ease forwards;animation-delay:var(--fd,1.1s)}
@keyframes fadein{to{opacity:1}}

/* 4 · marquee of part types */
.ticker{overflow:hidden;border-block:1px solid var(--border);background:var(--surface);
  padding-block:15px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ticker-track{display:flex;width:max-content;animation:slide 46s linear infinite;direction:ltr}
.ticker:hover .ticker-track{animation-play-state:paused}
@keyframes slide{to{transform:translateX(-50%)}}
.ticker-item{display:flex;align-items:center;gap:15px;padding-inline:15px;white-space:nowrap;
  font-size:14.5px;color:var(--ink-2)}
.ticker-item::after{content:"";width:6px;height:6px;border:1.4px solid var(--accent);
  transform:rotate(45deg);flex:none}

/* 5 · scroll-linked process line */
.track{position:absolute;inset-block:8px 8px;inset-inline-start:18px;width:1px;background:var(--border)}
.track::after{content:"";position:absolute;inset-block-start:0;inset-inline-start:-1px;width:3px;
  height:calc(var(--p,0)*100%);background:var(--accent);border-radius:2px;
  box-shadow:0 0 14px -1px var(--accent);transition:height .12s linear}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .w,.reveal{opacity:1 !important;transform:none !important;transition:none !important}
  .eyebrow::before{transform:scaleX(1) !important}
  .draw [data-len]{stroke-dashoffset:0 !important;animation:none !important}
  .draw .fade{opacity:1 !important;animation:none !important}
  .ticker-track{animation:none;width:100%;justify-content:center;flex-wrap:wrap}
  .track::after{transition:none}
}

/* ============================================================
   NAV
   ============================================================ */
.nav{position:sticky;top:0;z-index:60;
  background:color-mix(in srgb,var(--bg) 84%,transparent);
  backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--border);
  transition:box-shadow .3s}
.nav.stuck{box-shadow:0 12px 30px -24px rgba(0,0,0,.7)}
.nav-prog{position:absolute;inset-block-end:-1px;inset-inline-start:0;height:2px;
  background:var(--accent);width:calc(var(--sp,0)*100%);transition:width .1s linear}
.nav-in{display:flex;align-items:center;gap:18px;height:66px;max-width:var(--maxw);
  margin-inline:auto;padding-inline:var(--pad)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:none;min-width:0}
.brand-mark{width:30px;height:30px;flex:none;overflow:visible}
.brand-mark .spin{transform-origin:16px 24px}
.brand:hover .brand-mark .spin{animation:spin 1.4s var(--ease)}
@keyframes spin{to{transform:rotate(360deg)}}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-txt b{font-size:14.5px;font-weight:700}
.brand-txt span{font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
html[data-lang="fa"] .brand-txt span{font-family:var(--fa);letter-spacing:0;text-transform:none;font-size:11px}
.nav-links{display:flex;gap:2px;margin-inline-start:auto;align-items:center}
.nav-links a{text-decoration:none;font-size:13.5px;color:var(--ink-2);padding:7px 11px;
  border-radius:var(--r);white-space:nowrap;position:relative;transition:color .18s}
.nav-links a::after{content:"";position:absolute;inset-block-end:2px;inset-inline:11px;height:1.5px;
  background:var(--accent);transform:scaleX(0);transform-origin:var(--o,left);
  transition:transform .3s var(--ease)}
html[dir="rtl"] .nav-links a::after{--o:right}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink)}
.nav-tools{display:flex;gap:8px;align-items:center;margin-inline-start:auto}
.nav-links + .nav-tools{margin-inline-start:14px}
.btn{font-family:inherit;font-size:13.5px;font-weight:600;border:1px solid var(--border-strong);
  background:transparent;color:var(--ink);padding:8px 14px;border-radius:var(--r);cursor:pointer;
  text-decoration:none;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  transition:background .18s,border-color .18s,color .18s,transform .18s var(--ease)}
.btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn--solid{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);
  font-weight:700;position:relative;overflow:hidden}
.btn--solid:hover{color:var(--accent-ink);filter:brightness(1.07)}
.btn--solid::after{content:"";position:absolute;inset-block:0;inset-inline-start:-60%;width:40%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
  transform:skewX(-18deg);transition:inset-inline-start .6s var(--ease)}
.btn--solid:hover::after{inset-inline-start:120%}
.btn--lg{padding:13px 24px;font-size:15px}
.lang-btn{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;padding:8px 11px}
.theme-btn{padding:8px 10px;line-height:0;align-items:center;justify-content:center}
.theme-btn svg{width:17px;height:17px;flex:none;max-width:none;stroke:currentColor;fill:none;
  stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform .5s var(--ease)}
.theme-btn:hover svg{transform:rotate(35deg)}
.theme-btn .i-sun{display:none} .theme-btn .i-moon{display:block}
:root[data-theme="dark"] .theme-btn .i-sun{display:block}
:root[data-theme="dark"] .theme-btn .i-moon{display:none}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-btn .i-sun{display:block}
  :root:not([data-theme="light"]) .theme-btn .i-moon{display:none}
}
.menu-btn{display:none;padding:8px 10px;line-height:0}
.menu-btn svg{flex:none;max-width:none}
@media (max-width:1080px){
  .nav-links{display:none} .menu-btn{display:inline-flex} .nav-tools{margin-inline-start:auto}
}
@media (max-width:560px){
  .nav-in{gap:10px}
  .brand-txt b,.brand-txt span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:42vw}
  .nav-tools .btn--solid{display:none}
  .btn{padding:8px 11px} .theme-btn{padding:8px}
  .hero-cta .btn--lg{width:100%;justify-content:center}
}
.drawer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease);
  background:var(--bg);border-bottom:1px solid transparent}
.drawer.open{grid-template-rows:1fr;border-bottom-color:var(--border)}
.drawer-in{overflow:hidden}
.drawer a{display:block;text-decoration:none;padding:11px var(--pad);font-size:15px;
  color:var(--ink-2);border-bottom:1px solid var(--border)}
.drawer a:last-child{border-bottom:0}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;padding-block:clamp(38px,5vw,64px) clamp(52px,7vw,88px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-10%;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:34px 34px;
  transform:translate3d(calc(var(--mx,0)*-14px),calc(var(--my,0)*-14px),0);
  transition:transform .6s var(--ease);
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 78%)}
.sheet{position:relative;background:var(--sheet);border:1px solid var(--border-strong);
  border-radius:var(--r);box-shadow:var(--shadow);
  transform:perspective(1400px) rotateX(calc(var(--my,0)*-1.1deg)) rotateY(calc(var(--mx,0)*1.4deg));
  transition:transform .5s var(--ease)}
.sheet::before,.sheet::after{content:"";position:absolute;width:14px;height:14px;pointer-events:none;
  border-color:var(--accent);border-style:solid;opacity:0;animation:tick .5s ease forwards .9s}
@keyframes tick{to{opacity:.85}}
.sheet::before{inset-block-start:9px;inset-inline-start:9px;border-width:1.5px 0 0 1.5px}
.sheet::after{inset-block-end:9px;inset-inline-end:9px;border-width:0 1.5px 1.5px 0}
html[dir="rtl"] .sheet::before{border-width:1.5px 1.5px 0 0}
html[dir="rtl"] .sheet::after{border-width:0 0 1.5px 1.5px}
.sheet-body{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:clamp(24px,4vw,52px);align-items:center;padding:clamp(28px,4.5vw,56px)}
@media (max-width:900px){.sheet-body{grid-template-columns:1fr;gap:30px}}
.hero h1{font-size:clamp(30px,5vw,53px);letter-spacing:-.02em}
html[data-lang="fa"] .hero h1{letter-spacing:0;font-size:clamp(26px,4.2vw,44px);line-height:1.4}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{color:var(--ink-2);font-size:clamp(15.5px,1.6vw,18.5px);margin-top:18px;max-width:56ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:26px}
.chip{font-family:var(--mono);font-size:11px;letter-spacing:.05em;border:1px solid var(--border);
  border-radius:100px;padding:4px 11px;color:var(--muted);background:var(--surface);
  transition:border-color .2s,color .2s,transform .2s var(--ease)}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
html[data-lang="fa"] .chip.fa{font-family:var(--fa);letter-spacing:0;font-size:12px}
.titleblock{border-top:1px solid var(--border-strong);display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));font-family:var(--mono)}
html[data-lang="fa"] .titleblock{font-family:var(--fa)}
.titleblock > div{padding:11px 16px;border-inline-start:1px solid var(--border)}
.titleblock > div:first-child{border-inline-start:0}
.titleblock dt{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0}
html[data-lang="fa"] .titleblock dt{font-size:11px;letter-spacing:0;text-transform:none}
.titleblock dd{margin:3px 0 0;font-size:12.5px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
html[data-lang="fa"] .titleblock dd{font-size:13.5px}
@media (max-width:640px){
  .titleblock{grid-template-columns:repeat(2,minmax(0,1fr))}
  .titleblock > div:nth-child(3){border-inline-start:0}
  .titleblock > div:nth-child(n+3){border-top:1px solid var(--border)}
}

/* ============================================================
   TABBED CAPABILITIES
   ============================================================ */
.tabs{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:clamp(24px,3.5vw,48px);align-items:start}
@media (max-width:920px){.tabs{grid-template-columns:1fr}}
.tablist{display:flex;flex-direction:column;border:1px solid var(--border);
  border-radius:var(--r);overflow:hidden;background:var(--surface)}
.tab{appearance:none;background:transparent;border:0;border-top:1px solid var(--border);
  font-family:inherit;color:var(--ink-2);text-align:start;padding:17px 20px;cursor:pointer;
  display:grid;gap:3px;position:relative;transition:background .25s,color .25s}
.tab:first-child{border-top:0}
.tab::before{content:"";position:absolute;inset-block:0;inset-inline-start:0;width:3px;
  background:var(--accent);transform:scaleY(0);transform-origin:top;
  transition:transform .35s var(--ease)}
.tab[aria-selected="true"]{background:var(--surface-2);color:var(--ink)}
.tab[aria-selected="true"]::before{transform:scaleY(1)}
.tab:hover{background:var(--surface-2)}
.tab b{font-size:16px;font-weight:700;display:flex;align-items:center;gap:9px}
.tab .k{font-family:var(--mono);font-size:10px;color:var(--accent);letter-spacing:.1em}
.tab span.d{font-size:13.5px;color:var(--muted);line-height:1.6}
.panels{position:relative}
.panel{display:none}
.panel[data-on]{display:block;animation:panelin .5s var(--ease)}
@keyframes panelin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.panel-body{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:clamp(20px,2.6vw,28px);box-shadow:var(--shadow)}
.panel h3{font-size:clamp(19px,2.2vw,25px);margin-bottom:10px}
.panel-body > p{color:var(--muted);font-size:15px;margin-bottom:18px}
.figcap{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);margin-top:14px;padding-top:12px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:12px}
html[data-lang="fa"] .figcap{font-family:var(--fa);letter-spacing:0;text-transform:none;font-size:12.5px}
.taglist{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.taglist li{font-size:13px;color:var(--ink-2);background:var(--surface-2);
  border:1px solid var(--border);border-radius:100px;padding:4px 12px;
  opacity:0;transform:translateY(8px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
  transition-delay:calc(var(--i,0)*45ms)}
.panel[data-on] .taglist li{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.taglist li{opacity:1;transform:none}}

/* ============================================================
   METHOD SELECTOR
   ============================================================ */
.mrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.mbtn{appearance:none;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;
  background:var(--surface);border:1px solid var(--border);color:var(--ink-2);
  padding:9px 16px;border-radius:100px;
  transition:border-color .22s,color .22s,background .22s,transform .22s var(--ease)}
.mbtn:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.mbtn[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.mstage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:clamp(22px,3.5vw,44px);align-items:center;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:clamp(22px,3vw,34px);box-shadow:var(--shadow)}
@media (max-width:820px){.mstage{grid-template-columns:1fr}}
.mtext h3{font-size:clamp(20px,2.4vw,27px);margin-bottom:12px}
.mtext p{color:var(--muted);font-size:15.5px}
.mmeta{display:flex;gap:24px;flex-wrap:wrap;margin-top:22px;padding-top:18px;
  border-top:1px solid var(--border)}
.mmeta > div{display:grid;gap:2px}
.mmeta dt{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
html[data-lang="fa"] .mmeta dt{font-family:var(--fa);font-size:11.5px;letter-spacing:0;text-transform:none}
.mmeta dd{margin:0;font-size:14.5px;font-weight:600;color:var(--ink)}
.mfig{position:relative}
.mpanel{display:none}
.mpanel[data-on]{display:block;animation:panelin .45s var(--ease)}

/* ============================================================
   PROCESS
   ============================================================ */
.steps{position:relative;padding-inline-start:56px}
.step{padding-block:20px;position:relative;
  opacity:.34;filter:saturate(.4);transition:opacity .45s var(--ease),filter .45s var(--ease)}
.step.on{opacity:1;filter:none}
.step::before{content:attr(data-n);position:absolute;inset-inline-start:-56px;inset-block-start:20px;
  width:37px;height:37px;display:grid;place-items:center;border-radius:50%;
  font-family:var(--mono);font-size:12px;font-weight:600;
  border:1px solid var(--border-strong);background:var(--bg);color:var(--muted);
  transition:border-color .35s,color .35s,background .35s,transform .35s var(--ease)}
.step.on::before{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);
  transform:scale(1.08)}
.step b{display:block;font-size:17px;font-weight:700;margin-bottom:4px}
.step p{color:var(--muted);font-size:14.5px}
@media (max-width:560px){
  .steps{padding-inline-start:44px}
  .step::before{inset-inline-start:-44px;width:31px;height:31px;font-size:11px}
  .track{inset-inline-start:15px}
}

/* ============================================================
   FAQ / CONTACT / FOOTER
   ============================================================ */
details.faq{border-bottom:1px solid var(--border)}
details.faq summary{cursor:pointer;list-style:none;padding:19px 34px 19px 0;font-weight:700;
  font-size:16.5px;position:relative;transition:color .2s}
html[dir="rtl"] details.faq summary{padding:19px 0 19px 34px}
details.faq summary:hover{color:var(--accent)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"";position:absolute;inset-inline-end:8px;top:50%;
  width:13px;height:13px;margin-top:-6px;
  background:
    linear-gradient(var(--accent),var(--accent)) center/13px 1.6px no-repeat,
    linear-gradient(var(--accent),var(--accent)) center/1.6px 13px no-repeat;
  transition:transform .3s var(--ease)}
details.faq[open] summary::after{transform:rotate(135deg)}
details.faq p{padding-bottom:21px;color:var(--muted);font-size:15px;max-width:72ch;
  animation:faqin .4s var(--ease)}
@keyframes faqin{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

.cta-band{border:1px solid var(--border-strong);border-radius:var(--r);background:var(--surface);
  padding:clamp(28px,4vw,52px);text-align:center;box-shadow:var(--shadow);
  position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:26px 26px;
  mask-image:radial-gradient(ellipse 70% 100% at 50% 0%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 70% 100% at 50% 0%,#000,transparent 75%)}
.cta-band > *{position:relative}
.cta-band h2{font-size:clamp(23px,3vw,35px)}
.cta-band > p{color:var(--muted);margin-top:12px;max-width:56ch;margin-inline:auto}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:13px;
  margin-top:32px;text-align:start}
.ccard{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--r);padding:19px;
  text-decoration:none;display:flex;flex-direction:column;gap:5px;
  transition:border-color .22s,transform .22s var(--ease),background .22s,opacity .65s var(--ease)}
.ccard:hover{border-color:var(--accent);transform:translateY(-3px);background:var(--surface-2)}
.ccard .lbl{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
html[data-lang="fa"] .ccard .lbl{font-family:var(--fa);font-size:12px;letter-spacing:0;text-transform:none}
.ccard .val{font-family:var(--mono);font-size:16px;font-weight:600;color:var(--ink);
  direction:ltr;unicode-bidi:embed;text-align:start}
.ccard .note{font-size:13px;color:var(--muted)}

.foot{border-top:1px solid var(--border);background:var(--bg-alt);padding-block:38px 30px}
.foot-in{display:flex;flex-wrap:wrap;gap:22px;justify-content:space-between;align-items:flex-start}
.foot p{color:var(--muted);font-size:13.5px;max-width:48ch}
.foot-links{display:flex;flex-wrap:wrap;gap:16px}
.foot-links a{font-size:13.5px;color:var(--muted);text-decoration:none;transition:color .2s}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{margin-top:26px;padding-top:18px;border-top:1px solid var(--border);
  font-family:var(--mono);font-size:11px;color:var(--muted);display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap}
.seo-note{font-size:13px;color:var(--muted);margin-top:20px;line-height:1.9}