:root{
  --bg:#000000; --bg2:#0a0a0a; --fg:#ffffff; --muted:#8a8a8a;
  --card:rgba(255,255,255,.04); --border:rgba(255,255,255,.12);
  --p1:#ffffff; --p2:#cfcfcf; --p3:#8f8f8f; --p4:#e8e8e8;
  --glow:0 0 40px rgba(255,255,255,.22);
  --r:22px; --ease:cubic-bezier(.2,.8,.2,1);
}
:root.light{
  --bg:#ffffff; --bg2:#f2f2f2; --fg:#000000; --muted:#666666;
  --card:rgba(0,0,0,.04); --border:rgba(0,0,0,.14);
  --p1:#000000; --p2:#333333; --p3:#777777; --p4:#111111;
  --glow:0 0 40px rgba(0,0,0,.15);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
body{
  font-family:Vazirmatn,system-ui,sans-serif; background:var(--bg); color:var(--fg);
  overflow-x:clip; line-height:1.8; cursor:none; width:100%; max-width:100vw; position:relative;
  transition:background .5s var(--ease),color .5s var(--ease);
}
/* ===== فونت خفن انگلیسی هنگام انتخاب زبان EN ===== */
:root.en body{font-family:"Outfit","Space Grotesk",system-ui,sans-serif;line-height:1.7;letter-spacing:.1px}
:root.en .hero-name,:root.en .title,:root.en .logo,:root.en .stat .num,
:root.en .lang-name,:root.en .lang-badge,:root.en .show-head .title{
  font-family:"Clash Display","Outfit",sans-serif;letter-spacing:-.5px;font-weight:600}
:root.en .kicker,:root.en .nav-links a,:root.en .lang-meta span,:root.en .tags span,
:root.en .tl-date,:root.en .hero-tag{font-family:"Space Grotesk",sans-serif}
:root.en .hero-name{letter-spacing:-3px;font-weight:600;font-size:clamp(3.8rem,14vw,10rem)}
:root.en .title{font-weight:600}
:root.en .lang-badge{font-weight:500}
:root.en .lang-name{font-weight:600}
/* در حالت انگلیسی فاصله‌ی خطوط متن کمی بازتر و خواناتر */
:root.en .hero-desc,:root.en .lang-desc,:root.en .about-text p{line-height:1.7}
@media(max-width:820px){body{cursor:auto}}
a{color:inherit;text-decoration:none}

.bg-aurora{position:fixed;inset:0;z-index:-3;overflow:hidden;background:
  radial-gradient(1200px 600px at 80% -10%,rgba(255,255,255,.10),transparent),
  radial-gradient(900px 500px at 10% 110%,rgba(255,255,255,.06),transparent),var(--bg)}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.18;mix-blend-mode:screen;animation:float 18s ease-in-out infinite}
.orb-1{width:480px;height:480px;background:#ffffff;top:-100px;right:-80px}
.orb-2{width:420px;height:420px;background:#bdbdbd;bottom:-120px;left:-60px;animation-delay:-6s}
.orb-3{width:360px;height:360px;background:#9a9a9a;top:40%;left:55%;animation-delay:-11s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-50px) scale(1.15)}}
.grid-overlay{position:absolute;inset:0;background-image:
  linear-gradient(var(--border) 1px,transparent 1px),
  linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:60px 60px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);opacity:.4}
#particles{position:fixed;inset:0;z-index:-2;pointer-events:none}

.cursor,.cursor-dot{position:fixed;top:0;left:0;border-radius:50%;pointer-events:none;z-index:9999;mix-blend-mode:difference}
.cursor{width:34px;height:34px;border:1.5px solid var(--p2);transition:transform .18s var(--ease),width .2s,height .2s,background .2s;transform:translate(-50%,-50%)}
.cursor-dot{width:6px;height:6px;background:var(--p2);transform:translate(-50%,-50%)}
.cursor.hover{width:60px;height:60px;background:rgba(255,255,255,.18)}
@media(max-width:820px){.cursor,.cursor-dot{display:none}}

.scroll-progress{position:fixed;top:0;right:0;height:3px;width:0;z-index:1000;max-width:100%;
  background:linear-gradient(90deg,var(--p1),var(--p2),var(--p3));box-shadow:var(--glow)}
:root.en .scroll-progress{right:auto;left:0}

.nav{position:fixed;top:0;inset-inline:0;z-index:900;display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,70px);border:1px solid transparent;border-radius:0;
  transition:background .4s var(--ease),backdrop-filter .4s var(--ease),border-color .4s var(--ease),
    padding .4s var(--ease),margin .4s var(--ease),border-radius .4s var(--ease),box-shadow .4s var(--ease)}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 65%,transparent);backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-color:var(--border);border-radius:18px;
  top:12px;inset-inline:clamp(12px,3vw,28px);
  padding:10px clamp(16px,4vw,32px);
  box-shadow:0 12px 40px rgba(0,0,0,.28)}
:root.light .nav.scrolled{box-shadow:0 12px 40px rgba(0,0,0,.1)}
.logo{font-weight:900;font-size:1.3rem;letter-spacing:1px;
  background:linear-gradient(90deg,var(--p1),var(--p2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{position:relative;font-size:.95rem;color:var(--muted);transition:color .3s}
.nav-links a::after{content:"";position:absolute;bottom:-6px;right:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--p1),var(--p2));transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--fg)}.nav-links a:hover::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:10px}
.theme-toggle{background:var(--card);border:1px solid var(--border);width:42px;height:42px;border-radius:50%;
  display:grid;place-items:center;font-size:1.1rem;cursor:none;transition:.3s;color:var(--fg)}
.theme-toggle:hover{transform:rotate(40deg) scale(1.1)}
.lang-toggle{background:var(--card);border:1px solid var(--border);height:42px;min-width:48px;padding:0 14px;border-radius:40px;
  display:grid;place-items:center;cursor:none;color:var(--fg);transition:.3s var(--ease);position:relative;overflow:hidden}
.lang-toggle .lang-cur{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:.9rem;letter-spacing:.5px}
.lang-toggle:hover{background:var(--fg);color:var(--bg);border-color:var(--fg);transform:translateY(-2px)}
@media(max-width:820px){
  .nav-links{display:none}
  /* روی موبایل هدر همیشه یک نوار شناور و گرد است (بدون لبه‌ی تیز) */
  .nav{
    top:10px;inset-inline:10px;border-radius:16px;
    padding:10px 16px;
    background:color-mix(in srgb,var(--bg) 62%,transparent);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    border-color:var(--border);
    box-shadow:0 10px 30px rgba(0,0,0,.3);
  }
  :root.light .nav{box-shadow:0 10px 30px rgba(0,0,0,.1)}
  .nav.scrolled{top:10px;inset-inline:10px;box-shadow:0 12px 34px rgba(0,0,0,.34)}
  .logo{font-size:1.1rem}
  .theme-toggle{width:38px;height:38px}
}

.scene{perspective:1200px;perspective-origin:50% 30%}
.section{max-width:1100px;margin:0 auto;padding:clamp(80px,12vh,160px) clamp(20px,5vw,40px);position:relative;transform-style:preserve-3d}

.hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;position:relative;padding:0 20px}
.hero-inner{transform-style:preserve-3d}
.hero-tag{color:var(--muted);font-weight:500;margin-bottom:10px;letter-spacing:1px;display:inline-flex;align-items:center;gap:8px}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--fg);box-shadow:0 0 0 0 color-mix(in srgb,var(--fg) 40%,transparent);animation:dotPulse 2s ease-out infinite}
@keyframes dotPulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--fg) 40%,transparent)}70%,100%{box-shadow:0 0 0 8px transparent}}
.hero-name{font-size:clamp(3.5rem,13vw,9rem);font-weight:900;line-height:.95;position:relative;
  background:linear-gradient(120deg,var(--fg),var(--p1) 60%,var(--p2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-name::before{content:attr(data-text);position:absolute;inset:0;
  background:linear-gradient(120deg,var(--p3),var(--p1));-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:blur(22px);opacity:.55;z-index:-1}
.hero-role{font-size:clamp(1.2rem,4vw,2rem);font-weight:700;margin-top:12px;min-height:1.4em}
.typed{background:linear-gradient(90deg,var(--p2),var(--p4));-webkit-background-clip:text;background-clip:text;color:transparent}
.caret{color:var(--p2);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{max-width:620px;color:var(--muted);margin:22px auto 0;font-size:1.05rem}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.hero-stats{display:flex;gap:clamp(24px,6vw,64px);justify-content:center;margin-top:54px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;align-items:center}
@media(max-width:820px){.hero-stats{margin-top:38px;gap:28px}}
.stat .num{font-size:clamp(1.8rem,5vw,2.8rem);font-weight:900;
  background:linear-gradient(90deg,var(--p1),var(--p2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat small{color:var(--muted);font-size:.85rem}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);color:var(--muted);font-size:.8rem;display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-hint .mouse{width:24px;height:38px;border:2px solid var(--muted);border-radius:14px;position:relative;display:block}
.scroll-hint .mouse::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:4px;height:8px;border-radius:4px;background:var(--p2);animation:wheel 1.6s infinite}
@keyframes wheel{0%{opacity:1;top:7px}100%{opacity:0;top:20px}}
/* روی موبایل یا صفحه‌های کوتاه، راهنمای اسکرول پنهان می‌شود تا روی آمارها نیفتد */
@media(max-width:820px),(max-height:760px){.scroll-hint{display:none}}

.btn{padding:14px 30px;border-radius:50px;font-weight:700;font-family:inherit;cursor:none;border:1px solid transparent;
  transition:transform .25s var(--ease),box-shadow .25s,background .3s;display:inline-block}
.btn-primary{background:var(--fg);color:var(--bg);box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 14px 50px rgba(255,255,255,.25)}
:root.light .btn-primary:hover{box-shadow:0 14px 50px rgba(0,0,0,.25)}
.btn-ghost{background:var(--card);border-color:var(--border);color:var(--fg)}
.btn-ghost:hover{transform:translateY(-4px);border-color:var(--p2)}
.btn.big{font-size:1.2rem;padding:18px 44px;margin-top:24px}

.section-head{margin-bottom:54px;text-align:center}
.kicker{color:var(--p2);font-weight:600;letter-spacing:3px;font-size:.85rem}
.title{font-size:clamp(2rem,5vw,3.4rem);font-weight:900;margin-top:10px}
.grad{background:linear-gradient(90deg,var(--p1),var(--p3));-webkit-background-clip:text;background-clip:text;color:transparent}

.about-card,.about-side,.skill-card,.project,.contact-card,.tl-body{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r);backdrop-filter:blur(14px)}

.about-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px}
.about-card{padding:38px}
.about-text p{color:var(--muted);margin-bottom:16px}
.about-text p:first-child{color:var(--fg)}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.chips li{padding:7px 16px;border:1px solid var(--border);border-radius:30px;font-size:.85rem;background:var(--card)}
.about-side{padding:30px;display:flex;flex-direction:column;gap:18px;justify-content:center}
.info-row{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px dashed var(--border)}
.info-row:last-child{border:none;padding:0}
.info-row span{color:var(--muted);font-size:.9rem;display:inline-flex;align-items:center;gap:8px}
.info-row span .bi{font-size:1rem;color:var(--fg)}
.online{color:var(--p4)}
@media(max-width:780px){.about-grid{grid-template-columns:1fr}}

.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.skill-card{padding:30px;position:relative;overflow:hidden;transition:transform .3s var(--ease),border-color .3s}
.skill-card:hover{transform:translateY(-6px);border-color:var(--p2)}
.bi{width:1em;height:1em;display:inline-block;vertical-align:-.125em;fill:currentColor}
.skill-top{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.skill-ico{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;flex-shrink:0;
  font-size:1.4rem;color:var(--fg);background:color-mix(in srgb,var(--fg) 7%,transparent);
  border:1px solid var(--border);transition:.35s var(--ease)}
.skill-card:hover .skill-ico{background:var(--fg);color:var(--bg);transform:translateY(-2px) rotate(-6deg)}
.skill-card h3{font-size:1.15rem;font-weight:700}
.skill-list{list-style:none;display:flex;flex-direction:column;gap:0}
.skill-list li{padding:11px 0;color:var(--muted);font-size:.95rem;border-bottom:1px dashed var(--border);
  display:flex;align-items:center;gap:10px;transition:color .25s var(--ease),padding .25s var(--ease)}
.skill-list li:last-child{border-bottom:none}
.skill-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--muted);flex-shrink:0;transition:.25s var(--ease)}
.skill-card:hover .skill-list li{color:var(--fg)}
.skill-list li:hover{padding-inline-start:6px}
.skill-list li:hover::before{background:var(--fg);box-shadow:0 0 0 4px color-mix(in srgb,var(--fg) 18%,transparent)}

.projects{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.project{padding:30px;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s}
.project::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.12),transparent 60%);opacity:0;transition:opacity .3s}
.project:hover::before{opacity:1}
.project:hover{transform:translateY(-8px);box-shadow:0 24px 60px rgba(0,0,0,.4)}
.project .emoji{display:grid;place-items:center;width:56px;height:56px;border-radius:16px;font-size:1.7rem;
  color:var(--fg);background:color-mix(in srgb,var(--fg) 7%,transparent);border:1px solid var(--border);transition:.35s var(--ease)}
.project:hover .emoji{background:var(--fg);color:var(--bg);transform:rotate(-6deg) scale(1.05)}
.project h3{font-size:1.35rem;margin:14px 0 8px}
.project p{color:var(--muted);font-size:.95rem;margin-bottom:18px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags span{font-size:.78rem;padding:5px 12px;border-radius:20px;background:color-mix(in srgb,var(--fg) 8%,transparent);color:var(--fg);border:1px solid var(--border)}
.proj-link{display:inline-block;margin-top:18px;color:var(--p2);font-weight:600}
.proj-link::after{content:" \2190";transition:margin .25s}
.project:hover .proj-link::after{margin-right:6px}
:root.en .proj-link::after{content:" \2192"}
:root.en .project:hover .proj-link::after{margin-right:0;margin-left:6px}

.timeline{position:relative;max-width:760px;margin:0 auto;padding-right:30px}
.timeline::before{content:"";position:absolute;top:0;bottom:0;right:8px;width:2px;background:linear-gradient(var(--p1),var(--p2),transparent)}
.tl-item{position:relative;padding:0 36px 40px 0}
.tl-item::before{content:"";position:absolute;right:1px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--p2);box-shadow:0 0 0 5px color-mix(in srgb,var(--p2) 25%,transparent)}
.tl-body{padding:22px 26px}
.tl-date{color:var(--p2);font-size:.85rem;font-weight:600}
/* تایم‌لاین در حالت انگلیسی (LTR) از سمت چپ */
:root.en .timeline{padding-right:0;padding-left:30px}
:root.en .timeline::before{right:auto;left:8px}
:root.en .tl-item{padding:0 0 40px 36px}
:root.en .tl-item::before{right:auto;left:1px}
.tl-body h3{margin:6px 0 4px;font-size:1.2rem}
.tl-body .co{color:var(--muted);font-size:.9rem;margin-bottom:8px}

.contact{text-align:center}
.contact-card{max-width:680px;margin:0 auto;padding:60px 40px}
.contact-card p{color:var(--muted);margin-top:10px}
.contact-methods{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.contact-methods .btn{margin-top:0}
.contact-methods .btn.big{font-size:1.1rem;padding:16px 34px}
@media(max-width:560px){.contact-methods{flex-direction:column;align-items:stretch}}
.socials{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.socials a{display:inline-flex;align-items:center;gap:9px;color:var(--muted);transition:.3s var(--ease);
  padding:10px 18px;border-radius:40px;border:1px solid var(--border);background:var(--card)}
.socials a .bi{font-size:1.2rem}
.socials a:hover{color:var(--bg);background:var(--fg);border-color:var(--fg);transform:translateY(-3px)}
.footer{text-align:center;padding:40px 20px;color:var(--muted);font-size:.9rem;border-top:1px solid var(--border)}

.reveal{opacity:0;transform:translateY(60px) rotateX(12deg);transform-origin:center bottom;
  transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.show{opacity:1;transform:translateY(0) rotateX(0)}

.tilt{transform-style:preserve-3d;transition:transform .15s var(--ease)}

/* ===== بخش Pinned Scroll / Scrollytelling به سبک اپل ===== */
/* ارتفاع بلند = طول pin؛ stage چسبان داخلش قفل می‌شود */
.showcase{position:relative;width:100%;max-width:100vw;height:560vh;overflow-x:clip}
.showcase-stage{
  position:sticky;top:0;height:100vh;width:100%;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  perspective:1600px;perspective-origin:50% 50%;
  contain:layout paint;
}
@media(max-width:820px){.showcase{height:460vh}}

/* تیتر بالای بخش */
.show-head{position:absolute;top:clamp(86px,14vh,130px);left:0;right:0;text-align:center;z-index:5;pointer-events:none}
.show-head .title{font-size:clamp(1.6rem,4vw,2.6rem)}

/* صحنه‌ی کارت‌ها */
.stack-stage{position:relative;width:100%;height:100%;display:grid;place-items:center;overflow:hidden}

/* هر کارت زبان: آیکون + اطلاعات + توضیح */
.lang-card{
  position:absolute;width:min(92vw,820px);
  display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,4vw,46px);align-items:center;
  background:color-mix(in srgb,var(--bg) 55%,transparent);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:28px;padding:clamp(24px,4vw,46px);
  box-shadow:0 30px 80px rgba(0,0,0,.45);will-change:transform,opacity;
}
:root.light .lang-card{box-shadow:0 30px 80px rgba(0,0,0,.12)}
.lang-badge{display:grid;place-items:center;width:clamp(88px,16vw,128px);height:clamp(88px,16vw,128px);
  border-radius:26px;font-size:clamp(2.6rem,8vw,4rem);color:var(--bg);background:var(--fg);
  box-shadow:var(--glow);flex-shrink:0}
.lang-info .lang-name{font-size:clamp(1.6rem,5vw,2.6rem);font-weight:900;line-height:1.1;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.lang-info .lang-name small{font-size:.5em;font-weight:600;color:var(--muted);padding:4px 12px;border:1px solid var(--border);border-radius:30px}
.lang-info .lang-desc{color:var(--muted);margin-top:14px;font-size:clamp(.95rem,2.2vw,1.1rem);line-height:1.9}
.lang-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.lang-meta span{font-size:.8rem;padding:6px 14px;border-radius:30px;border:1px solid var(--border);
  background:color-mix(in srgb,var(--fg) 6%,transparent)}
@media(max-width:680px){
  .lang-card{grid-template-columns:1fr;text-align:center;justify-items:center}
  .lang-meta{justify-content:center}
}

/* نوار پیشرفت داخل بخش */
.show-progress{position:absolute;left:50%;bottom:38px;transform:translateX(-50%);
  width:min(40vw,260px);height:3px;border-radius:3px;background:var(--border);overflow:hidden;z-index:6}
.show-progress i{display:block;height:100%;width:0;background:var(--fg);border-radius:3px}
.show-hint{position:absolute;left:50%;bottom:64px;transform:translateX(-50%);color:var(--muted);font-size:.8rem;letter-spacing:2px;z-index:6;animation:hintPulse 1.8s ease-in-out infinite}
@keyframes hintPulse{0%,100%{opacity:.4;transform:translateX(-50%) translateY(0)}50%{opacity:1;transform:translateX(-50%) translateY(6px)}}

/* ===== اسکرول سه‌بعدی مدرن (Scroll-driven 3D) ===== */
@media (prefers-reduced-motion:no-preference){
  @supports (animation-timeline: view()){

    /* هر بخش با عمق و چرخش سه‌بعدی وارد و خارج می‌شود */
    .scene > .section{
      animation:section-3d linear both;
      animation-timeline:view();
      animation-range:entry 0% cover 35%;
      will-change:transform,opacity,filter;
    }
    @keyframes section-3d{
      from{
        opacity:0;
        transform:perspective(1400px) translateY(120px) translateZ(-320px) rotateX(28deg);
        filter:blur(8px);
      }
      to{
        opacity:1;
        transform:perspective(1400px) translateY(0) translateZ(0) rotateX(0);
        filter:blur(0);
      }
    }

    /* کارت‌ها داخل هر بخش یکی‌یکی با عمق ظاهر می‌شوند */
    .skill-card,.project,.tl-item,.about-card,.about-side{
      animation:card-3d linear both;
      animation-timeline:view();
      animation-range:entry 0% entry 60%;
      transform-origin:center bottom;
      will-change:transform,opacity;
    }
    @keyframes card-3d{
      from{opacity:0;transform:perspective(1000px) rotateX(35deg) translateY(80px) scale(.9)}
      to{opacity:1;transform:perspective(1000px) rotateX(0) translateY(0) scale(1)}
    }

    /* عنوان بخش‌ها از عمق به جلو می‌آیند */
    .section-head{
      animation:head-3d linear both;
      animation-timeline:view();
      animation-range:entry 0% cover 30%;
    }
    @keyframes head-3d{
      from{opacity:0;transform:perspective(1200px) translateZ(-260px) rotateX(20deg);letter-spacing:8px}
      to{opacity:1;transform:perspective(1200px) translateZ(0) rotateX(0);letter-spacing:normal}
    }

    /* عنوان معرفی روی اسکرول به عقب می‌رود و محو می‌شود */
    .hero-name{
      animation:hero-depth linear both;
      animation-timeline:view(block);
      animation-range:exit 0% exit 100%;
    }
    @keyframes hero-depth{
      to{transform:perspective(1000px) translateZ(-400px) rotateX(35deg);opacity:.15}
    }

    /* تایم‌لاین: هر آیتم با چرخش جانبی وارد می‌شود */
    .tl-item:nth-child(odd){--side:-40px}
    .tl-item:nth-child(even){--side:40px}
    .tl-item{
      animation:tl-3d linear both;
      animation-timeline:view();
      animation-range:entry 0% entry 55%;
    }
    @keyframes tl-3d{
      from{opacity:0;transform:perspective(900px) translateX(var(--side,40px)) rotateY(18deg) translateZ(-120px)}
      to{opacity:1;transform:perspective(900px) translateX(0) rotateY(0) translateZ(0)}
    }
  }
}