/* ============ TOKENS ============ */
:root{
  --bg:#06070c;
  --bg-alt:#0a0c16;
  --glass: rgba(255,255,255,.045);
  --glass-strong: rgba(255,255,255,.07);
  --glass-border: rgba(255,255,255,.09);
  --violet:#7C5CFF;
  --cyan:#00E6C3;
  --magenta:#FF3D9A;
  --text:#F3F3F8;
  --muted:#9496AC;
  --font-fa:'Vazirmatn', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
  --ease:cubic-bezier(.16,.8,.24,1);
  --header-h:76px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-fa);
  font-weight:400;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  cursor:default;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; }
::selection{ background:var(--violet); color:#fff; }

.mono{ font-family:var(--font-mono); direction:ltr; unicode-bidi:isolate; }

/* Accessibility */
.skip-link{
  position:absolute; right:1rem; top:-100px; z-index:9999;
  background:var(--violet); color:#fff; padding:.8rem 1.4rem; border-radius:8px;
  transition:top .25s var(--ease);
}
.skip-link:focus{ top:1rem; }
:focus-visible{ outline:2px solid var(--cyan); outline-offset:3px; border-radius:4px; }

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* ============ BACKGROUND LAYERS ============ */
.bg-gradient{
  position:fixed; inset:0; z-index:-2;
  background:
    radial-gradient(60% 45% at 15% 10%, rgba(124,92,255,.20), transparent 60%),
    radial-gradient(50% 40% at 90% 20%, rgba(0,230,195,.14), transparent 60%),
    radial-gradient(55% 45% at 50% 100%, rgba(255,61,154,.14), transparent 60%),
    var(--bg);
  background-size:200% 200%;
  animation:gradientShift 22s ease-in-out infinite;
}
@keyframes gradientShift{
  0%{ background-position:0% 0%; }
  50%{ background-position:100% 60%; }
  100%{ background-position:0% 0%; }
}
#particles{ position:fixed; inset:0; z-index:-1; pointer-events:none; }

/* ============ CURSOR ============ */
.cursor-dot,.cursor-ring{ position:fixed; top:0; left:0; pointer-events:none; z-index:9998; border-radius:50%; transform:translate(-50%,-50%); }
.cursor-dot{ width:6px; height:6px; background:var(--cyan); }
.cursor-ring{ width:34px; height:34px; border:1.5px solid rgba(124,92,255,.6); transition:width .2s var(--ease), height .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease); }
.cursor-ring.hover{ width:56px; height:56px; background:rgba(124,92,255,.12); border-color:var(--cyan); }
@media (hover:none), (pointer:coarse){ .cursor-dot,.cursor-ring{ display:none; } }

/* ============ SCROLL PROGRESS ============ */
.scroll-progress{ position:fixed; top:0; right:0; left:0; height:2px; z-index:1001; background:rgba(255,255,255,.05); }
.scroll-progress span{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--violet),var(--cyan),var(--magenta)); box-shadow:0 0 12px var(--cyan); }

/* ============ LOADER ============ */
#loader{
  position:fixed; inset:0; z-index:10000; background:var(--bg);
  display:flex; align-items:center; justify-content:center; flex-direction:column; gap:1.2rem;
  transition:opacity .7s var(--ease), visibility .7s var(--ease);
}
#loader.done{ opacity:0; visibility:hidden; }
.loader-mark path{ stroke-dasharray:260; stroke-dashoffset:260; animation:drawPath 1.4s var(--ease) infinite alternate; }
@keyframes drawPath{ to{ stroke-dashoffset:0; } }
.loader-count{ font-family:var(--font-mono); letter-spacing:.1em; color:var(--muted); font-size:.85rem; }

/* ============ LAYOUT HELPERS ============ */
.section{ position:relative; padding:8rem 0; }
.section-inner{ max-width:1180px; margin:0 auto; padding:0 1.6rem; }
.eyebrow{
  display:inline-flex; align-items:center; gap:.6rem; font-family:var(--font-mono);
  font-size:.78rem; letter-spacing:.05em; color:var(--muted); margin:0 0 1.4rem;
  padding:.4rem .9rem; border:1px solid var(--glass-border); border-radius:100px; background:var(--glass);
}
.eyebrow-dot{ width:6px; height:6px; border-radius:50%; background:var(--cyan); box-shadow:0 0 8px var(--cyan); animation:pulseDot 1.6s ease-in-out infinite; }
@keyframes pulseDot{ 0%,100%{ opacity:1; } 50%{ opacity:.3; } }
.section-title{ font-size:clamp(1.9rem,4vw,3rem); font-weight:800; margin:0 0 1.2rem; letter-spacing:-.01em; }
.section-desc{ color:var(--muted); max-width:640px; font-size:1.05rem; margin-bottom:3rem; }
.grad-text{ background:linear-gradient(90deg,var(--violet),var(--cyan)); -webkit-background-clip:text; background-clip:text; color:transparent; }

/* Reveal animations */
.reveal, .reveal-up{ opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in, .reveal-up.in{ opacity:1; transform:translateY(0); }

/* ============ GLASS CARD BASE ============ */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}

/* ============ BUTTONS ============ */
.btn{
  position:relative; display:inline-flex; align-items:center; justify-content:center;
  padding:.95rem 1.9rem; border-radius:100px; font-weight:600; font-size:.95rem;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
  cursor:pointer; border:1px solid transparent; white-space:nowrap;
}
.btn-primary{ background:linear-gradient(90deg,var(--violet),#9C7CFF); color:#fff; box-shadow:0 8px 30px -8px rgba(124,92,255,.7); }
.btn-primary:hover{ box-shadow:0 12px 40px -6px rgba(124,92,255,.9); transform:translateY(-2px); }
.btn-outline{ border-color:var(--glass-border); color:var(--text); background:var(--glass); }
.btn-outline:hover{ border-color:var(--cyan); color:var(--cyan); }
.btn-ghost{ border-color:var(--glass-border); background:var(--glass); font-size:.85rem; padding:.7rem 1.4rem; }
.btn-ghost:hover{ border-color:var(--violet); }
.btn.full{ width:100%; }

/* ============ HEADER ============ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000; height:var(--header-h);
  transition:background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{ background:rgba(6,7,12,.7); backdrop-filter:blur(16px); border-color:var(--glass-border); }
.header-inner{ max-width:1280px; margin:0 auto; height:100%; padding:0 1.6rem; display:flex; align-items:center; justify-content:space-between; gap:1.5rem; }

.brand{ display:flex; align-items:center; gap:.7rem; font-weight:700; }
.brand-mark{ font-family:var(--font-mono); font-size:1.1rem; width:42px; height:42px; display:flex; align-items:center; justify-content:center; border-radius:12px; background:var(--glass); border:1px solid var(--glass-border); }
.brand-mark-dot{ color:var(--cyan); }
.brand-name{ font-size:1.02rem; }

.main-nav ul{ display:flex; gap:.4rem; }
.nav-link{ position:relative; padding:.6rem .9rem; font-size:.92rem; color:var(--muted); transition:color .3s; }
.nav-link::after{ content:''; position:absolute; right:.9rem; left:.9rem; bottom:.15rem; height:1.5px; background:linear-gradient(90deg,var(--violet),var(--cyan)); transform:scaleX(0); transform-origin:left; transition:transform .35s var(--ease); }
.nav-link:hover, .nav-link.active{ color:var(--text); }
.nav-link:hover::after, .nav-link.active::after{ transform:scaleX(1); }

.nav-toggle{ display:none; flex-direction:column; justify-content:center; gap:5px; width:42px; height:42px; border-radius:10px; background:var(--glass); border:1px solid var(--glass-border); }
.nav-toggle span{ width:18px; height:2px; margin:0 auto; background:var(--text); transition:transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:0; z-index:999; background:rgba(6,7,12,.97); backdrop-filter:blur(10px);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transition:opacity .4s var(--ease), visibility .4s var(--ease);
}
.mobile-menu.open{ opacity:1; visibility:visible; }
.mobile-menu ul{ text-align:center; display:flex; flex-direction:column; gap:1.4rem; }
.mobile-menu .nav-link{ font-size:1.6rem; font-weight:700; opacity:0; transform:translateY(16px); transition:opacity .5s var(--ease), transform .5s var(--ease); }
.mobile-menu.open .nav-link{ opacity:1; transform:translateY(0); }

/* ============ HERO ============ */
.hero{ position:relative; min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:calc(var(--header-h) + 2rem) 1.6rem 4rem; overflow:hidden; }
.hero-signal{ position:absolute; top:18%; left:0; width:100%; height:220px; opacity:.5; }
.hero-inner{ max-width:900px; text-align:center; z-index:1; }
.hero-title{ font-size:clamp(3rem,9vw,7.2rem); font-weight:900; margin:0 0 1.5rem; line-height:1.05; letter-spacing:-.02em; }
.hero-title .line{ display:block; overflow:hidden; }
.hero-title .line span, .hero-title .line{ }
.hero-title .line{ opacity:0; transform:translateY(100%); animation:lineUp 1s var(--ease) forwards; }
.hero-title .line[data-line="1"]{ animation-delay:.15s; background:linear-gradient(90deg,var(--text),var(--text)); -webkit-background-clip:text; background-clip:text; }
.hero-title .line[data-line="2"]{ animation-delay:.32s; background:linear-gradient(90deg,var(--violet),var(--cyan),var(--magenta)); -webkit-background-clip:text; background-clip:text; color:transparent; background-size:200% auto; animation:lineUp 1s var(--ease) forwards, gradAnim 6s linear infinite 1.3s; }
@keyframes lineUp{ to{ opacity:1; transform:translateY(0); } }
@keyframes gradAnim{ to{ background-position:200% center; } }

.hero-subtitle{ display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:.5rem; margin:0 0 1.6rem; }
.hero-subtitle .chip{ font-family:var(--font-mono); font-size:.82rem; padding:.5rem 1rem; border-radius:100px; background:var(--glass); border:1px solid var(--glass-border); color:var(--muted); }
.hero-subtitle .sep{ color:var(--muted); opacity:.5; }
.hero-desc{ color:var(--muted); font-size:1.08rem; max-width:600px; margin:0 auto 2.4rem; }
.hero-actions{ display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }

.scroll-hint{ position:absolute; bottom:2.2rem; display:flex; flex-direction:column; align-items:center; gap:.6rem; color:var(--muted); font-size:.7rem; letter-spacing:.15em; }
.scroll-hint-line{ width:1px; height:38px; background:linear-gradient(var(--violet),transparent); position:relative; overflow:hidden; }
.scroll-hint-line::after{ content:''; position:absolute; top:-100%; left:0; width:100%; height:100%; background:var(--cyan); animation:scrollLine 1.8s ease-in-out infinite; }
@keyframes scrollLine{ 0%{ top:-100%; } 100%{ top:100%; } }

/* ============ ABOUT ============ */
.about-grid{ display:grid; grid-template-columns:1.3fr 1fr; gap:4rem; align-items:start; }
.about-text p{ color:var(--muted); margin:0 0 1.1rem; font-size:1.02rem; }
.about-stats{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.stat-card{ padding:1.8rem 1.4rem; border-radius:18px; text-align:center; }
.stat-number{ font-size:2.4rem; font-weight:700; color:var(--text); }
.stat-plus{ font-size:1.4rem; color:var(--cyan); }
.stat-label{ display:block; margin-top:.5rem; color:var(--muted); font-size:.85rem; }

/* ============ SKILLS (equalizer bars) ============ */
.skills-grid{ display:grid; gap:1.6rem; }
.skill-row{ padding:1.3rem 1.5rem; border-radius:16px; background:var(--glass); border:1px solid var(--glass-border); }
.skill-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:.9rem; }
.skill-name{ font-weight:600; }
.skill-percent{ color:var(--cyan); font-size:.85rem; }
.eq{ display:flex; align-items:flex-end; gap:3px; height:26px; }
.eq span{ flex:1; min-width:2px; border-radius:2px; background:linear-gradient(180deg,var(--violet),var(--cyan)); height:8%; transition:height 1.1s var(--ease); }

/* ============ PORTFOLIO ============ */
.filter-bar{ display:flex; flex-wrap:wrap; gap:.6rem; margin-bottom:2.6rem; }
.filter-btn{ padding:.55rem 1.2rem; border-radius:100px; background:var(--glass); border:1px solid var(--glass-border); color:var(--muted); font-size:.88rem; cursor:pointer; transition:all .3s var(--ease); }
.filter-btn:hover{ color:var(--text); border-color:var(--violet); }
.filter-btn.active{ color:#fff; background:linear-gradient(90deg,var(--violet),#9C7CFF); border-color:transparent; }

.portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem; }
.p-card{ border-radius:20px; overflow:hidden; background:var(--glass); border:1px solid var(--glass-border); cursor:pointer; transition:opacity .4s var(--ease), transform .4s var(--ease), border-color .4s; }
.p-card:hover{ border-color:var(--glass-border); }
.p-card.hide{ display:none; }
.p-thumb{ height:170px; display:flex; align-items:center; justify-content:center; position:relative; }
.p-icon{ width:44px; height:44px; color:rgba(255,255,255,.85); position:relative; z-index:1; }
.grad-1{ background:linear-gradient(135deg,#3b2a8f,#7C5CFF); }
.grad-2{ background:linear-gradient(135deg,#0e6b60,#00E6C3); }
.grad-3{ background:linear-gradient(135deg,#8a1f5c,#FF3D9A); }
.grad-4{ background:linear-gradient(135deg,#1f3a8a,#5c7cff); }
.grad-5{ background:linear-gradient(135deg,#8a5c1f,#ffb03d); }
.grad-6{ background:linear-gradient(135deg,#1f8a6e,#3dffb0); }
.p-body{ padding:1.3rem 1.4rem 1.6rem; }
.p-cat{ font-size:.72rem; color:var(--cyan); }
.p-body h3{ margin:.5rem 0 .35rem; font-size:1.12rem; }
.p-body p{ margin:0; color:var(--muted); font-size:.9rem; }

/* ============ SERVICES ============ */
.services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem; }
.service-card{ padding:2rem 1.7rem; border-radius:20px; background:var(--glass); border:1px solid var(--glass-border); transition:border-color .35s var(--ease), transform .35s var(--ease); }
.service-card:hover{ border-color:var(--violet); }
.service-icon{ width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,rgba(124,92,255,.25),rgba(0,230,195,.15)); margin-bottom:1.2rem; }
.service-icon svg{ width:26px; height:26px; color:var(--cyan); }
.service-card h3{ margin:0 0 .6rem; font-size:1.15rem; }
.service-card p{ margin:0; color:var(--muted); font-size:.92rem; }

/* ============ TESTIMONIALS ============ */
.testimonials-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem; }
.t-card{ margin:0; padding:2rem 1.7rem; border-radius:20px; background:var(--glass); border:1px solid var(--glass-border); }
.t-card p{ margin:0 0 1.5rem; font-size:.98rem; color:var(--text); }
.t-card footer{ display:flex; align-items:center; gap:.8rem; }
.t-avatar{ width:42px; height:42px; border-radius:50%; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,var(--violet),var(--cyan)); color:#06070c; font-size:.8rem; font-weight:700; flex-shrink:0; }
.t-card cite{ font-style:normal; font-weight:600; display:block; }
.t-role{ font-size:.8rem; color:var(--muted); }

/* ============ CONTACT ============ */
.contact-grid{ display:grid; grid-template-columns:1fr 1.1fr; gap:2.4rem; }
.contact-list{ display:flex; flex-direction:column; gap:.8rem; }
.contact-item{ display:flex; align-items:center; gap:1rem; padding:1.1rem 1.3rem; border-radius:16px; background:var(--glass); border:1px solid var(--glass-border); transition:border-color .3s var(--ease), transform .3s var(--ease); }
.contact-item:hover{ border-color:var(--cyan); transform:translateX(-4px); }
.contact-icon{ width:42px; height:42px; border-radius:12px; flex-shrink:0; display:flex; align-items:center; justify-content:center; background:rgba(124,92,255,.15); }
.contact-icon svg{ width:20px; height:20px; color:var(--violet); }
.contact-item span > span{ display:block; }
.contact-label{ font-size:.78rem; color:var(--muted); margin-bottom:.15rem; }
.contact-value{ font-size:.92rem; }

.contact-form{ padding:2rem; border-radius:20px; background:var(--glass); border:1px solid var(--glass-border); display:flex; flex-direction:column; gap:1.2rem; }
.form-row{ display:flex; flex-direction:column; gap:.5rem; }
.form-row label{ font-size:.85rem; color:var(--muted); }
.form-row input, .form-row textarea{
  background:rgba(255,255,255,.03); border:1px solid var(--glass-border); border-radius:12px;
  padding:.9rem 1rem; color:var(--text); font-family:inherit; font-size:.95rem; resize:vertical;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.form-row input:focus, .form-row textarea:focus{ border-color:var(--violet); background:rgba(255,255,255,.05); outline:none; }
.form-note{ margin:0; font-size:.85rem; color:var(--cyan); min-height:1.2em; }

/* ============ FOOTER ============ */
.site-footer{ border-top:1px solid var(--glass-border); background:rgba(255,255,255,.015); }
.footer-inner{ max-width:1180px; margin:0 auto; padding:3.4rem 1.6rem; display:flex; align-items:center; justify-content:space-between; gap:2rem; flex-wrap:wrap; }
.footer-brand{ display:flex; align-items:center; gap:1rem; max-width:420px; }
.footer-brand p{ margin:0; color:var(--muted); font-size:.9rem; }
.footer-social{ display:flex; gap:.7rem; }
.footer-social a{ width:44px; height:44px; border-radius:12px; display:flex; align-items:center; justify-content:center; background:var(--glass); border:1px solid var(--glass-border); transition:border-color .3s var(--ease), color .3s var(--ease); }
.footer-social a svg{ width:19px; height:19px; }
.footer-social a:hover{ border-color:var(--cyan); color:var(--cyan); }
.to-top{ width:46px; height:46px; border-radius:50%; background:var(--glass); border:1px solid var(--glass-border); display:flex; align-items:center; justify-content:center; cursor:pointer; }
.to-top svg{ width:18px; height:18px; }
.footer-bottom{ text-align:center; padding:1.4rem; border-top:1px solid var(--glass-border); color:var(--muted); font-size:.82rem; }

/* ============ MODAL ============ */
.modal-backdrop{
  position:fixed; inset:0; z-index:2000; background:rgba(4,5,9,.75); backdrop-filter:blur(6px);
  display:flex; align-items:center; justify-content:center; padding:1.5rem;
  opacity:0; visibility:hidden; transition:opacity .4s var(--ease), visibility .4s var(--ease);
}
.modal-backdrop.open{ opacity:1; visibility:visible; }
.modal{
  max-width:520px; width:100%; padding:2.4rem; border-radius:22px; position:relative;
  background:rgba(14,15,24,.9); border:1px solid var(--glass-border); backdrop-filter:blur(20px);
  transform:translateY(24px) scale(.97); opacity:0; transition:transform .4s var(--ease), opacity .4s var(--ease);
}
.modal-backdrop.open .modal{ transform:translateY(0) scale(1); opacity:1; }
.modal-close{ position:absolute; top:1.2rem; left:1.2rem; width:36px; height:36px; border-radius:50%; background:var(--glass); border:1px solid var(--glass-border); display:flex; align-items:center; justify-content:center; cursor:pointer; }
.modal-close svg{ width:16px; height:16px; }
#modalTitle{ font-size:1.4rem; margin:.6rem 0 .8rem; }
#modalDesc{ color:var(--muted); margin:0 0 1.4rem; }
.modal-tags{ display:flex; flex-wrap:wrap; gap:.5rem; }
.modal-tags span{ font-family:var(--font-mono); font-size:.75rem; padding:.4rem .8rem; border-radius:100px; background:var(--glass); border:1px solid var(--glass-border); color:var(--cyan); }

/* ============ TILT ============ */
.tilt{ transform-style:preserve-3d; will-change:transform; }

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .main-nav, .nav-cta{ display:none; }
  .nav-toggle{ display:flex; }
  .about-grid{ grid-template-columns:1fr; }
  .portfolio-grid, .services-grid, .testimonials-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
}
@media (max-width:640px){
  .section{ padding:5.5rem 0; }
  .portfolio-grid, .services-grid, .testimonials-grid{ grid-template-columns:1fr; }
  .about-stats{ grid-template-columns:1fr 1fr; }
  .hero-desc{ font-size:1rem; }
  .footer-inner{ flex-direction:column; text-align:center; }
}