/* ============================================================================
   TOKENS
   ============================================================================ */
:root{
  --bg:            #0a0b0f;
  --bg-alt:        #101219;
  --surface:       #15171f;
  --surface-2:     #1b1e28;
  --border:        rgba(233,238,255,0.09);
  --border-strong: rgba(233,238,255,0.18);
  --text:          #f2f4fa;
  --text-muted:    #9a9dab;
  --text-faint:    #62667a;

  /* glass / neon palette — cool blue through lavender into warm red,
     matching the reference glass-panel image. No gold anywhere. */
  --accent:        #5b8cff;
  --accent-2:      #ff5f7e;
  --accent-purple: #a58bff;
  --accent-soft:   rgba(91,140,255,0.14);
  --rec:           #ff5f7e;

  --neon-gradient: linear-gradient(90deg, #5b8cff 0%, #a58bff 50%, #ff5f7e 100%);

  --glass-bg:        rgba(255,255,255,0.045);
  --glass-bg-strong: rgba(255,255,255,0.075);
  --glass-border:    rgba(255,255,255,0.14);
  --glass-shadow:    0 20px 50px rgba(3,5,15,0.45);
  --glow-blue:       rgba(91,140,255,0.38);
  --glow-red:        rgba(255,95,126,0.32);

  --radius:    18px;
  --radius-sm: 12px;

  --ease: cubic-bezier(.22,1,.36,1);
  --dur-s: .35s;
  --dur-m: .7s;
  --dur-l: 1.1s;

  --container: 1180px;
  --gap: clamp(1.25rem, 3vw, 2.5rem);

  /* Simple, no-frills grotesk for English; a warmer, well-weighted
     Persian face (with an 800 weight so headings don't look thin/ugly). */
  --font-en-display: 'Inter', sans-serif;
  --font-en-body: 'Inter', sans-serif;
  --font-fa: 'Vazirmatn', sans-serif;
}

html[data-lang="en"]{
  --f-display: var(--font-en-display);
  --f-body: var(--font-en-body);
}
html[data-lang="fa"]{
  --f-display: var(--font-fa);
  --f-body: var(--font-fa);
}
html[data-lang="fa"] body{ line-height:1.9; }
html[data-lang="fa"] h1, html[data-lang="fa"] h2, html[data-lang="fa"] h3, html[data-lang="fa"] h4{
  font-weight:700; letter-spacing:0;
}
html[data-lang="fa"] .section-title em{ font-weight:800; }

/* ============================================================================
   RESET
   ============================================================================ */
*, *::before, *::after{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}
body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
ul{ list-style:none; }
h1,h2,h3,h4{ font-family: var(--f-display); font-weight:600; line-height:1.15; }

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.container{
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.eyebrow{
  display:flex;
  align-items:center;
  gap:.6em;
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color: var(--accent);
  font-weight:600;
  margin-bottom: 1rem;
}
html[data-lang="fa"] .eyebrow{ letter-spacing:0; font-size:.8rem; }
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background: var(--accent);
  display:inline-block;
}

.section{ padding-block: clamp(4.5rem, 10vw, 8rem); position:relative; }
.section-head{ max-width: 640px; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.section-title{ font-size: clamp(2rem, 4.4vw, 3.2rem); letter-spacing:-.01em; }
.section-title em{ font-style: normal; font-weight: 800; color: var(--accent); }
html[data-lang="fa"] .section-title em{ font-style:normal; color:var(--accent); }
.section-sub{ color: var(--text-muted); margin-top:1rem; font-size:1.02rem; max-width:52ch; }

/* ambient background — soft blue → lavender → red glow, echoing the
   glass-panel reference image, so every glass surface has color to catch */
.bg-ambient{
  position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    radial-gradient(48% 40% at 8% 12%, rgba(91,140,255,0.20), transparent 62%),
    radial-gradient(46% 38% at 92% 18%, rgba(255,95,126,0.16), transparent 62%),
    radial-gradient(50% 40% at 50% 92%, rgba(165,139,255,0.12), transparent 65%),
    var(--bg);
}
.bg-ambient::after{
  content:"";
  position:absolute; inset:0;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.015) 0 2px, transparent 2px 64px);
  opacity:.5;
}

/* reusable frosted-glass surface */
.glass{
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.06);
  border-radius: var(--radius);
}

/* film-grain ambient texture */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:2;
  opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================================
   PRELOADER
   ============================================================================ */
.preloader{
  position:fixed; inset:0; z-index:200;
  background: var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition: opacity var(--dur-l) var(--ease), visibility var(--dur-l) var(--ease);
}
.preloader.is-hidden{ opacity:0; visibility:hidden; }
.preloader-mark{ position:relative; width:120px; height:120px; display:flex; align-items:center; justify-content:center; }
.preloader-ring{
  position:absolute; inset:0;
  border-radius:50%;
  border:1px solid var(--border-strong);
}
.preloader-ring svg{ width:100%; height:100%; animation: spin 3.2s linear infinite; }
.preloader-ring circle{
  fill:none; stroke: var(--accent); stroke-width:1;
  stroke-dasharray: 6 10;
  stroke-linecap:round;
}
.preloader-initials{
  font-family: var(--font-en-display); font-size:1.6rem; letter-spacing:.08em;
  color:var(--text); opacity:0; animation: fadeUp .8s var(--ease) .3s forwards;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(8px);} to{ opacity:1; transform:translateY(0);} }

/* ============================================================================
   NAV
   ============================================================================ */
.nav{
  position:fixed; top:0; inset-inline:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding: 1.3rem clamp(1.25rem, 5vw, 3rem);
  transition: background var(--dur-s) var(--ease), padding var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled{
  background: var(--glass-bg-strong);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  padding-block: .9rem;
  border-color: var(--glass-border);
  box-shadow: 0 8px 30px rgba(3,5,15,0.35);
}
.nav-logo{
  font-family: var(--f-display);
  font-size: 1.05rem; letter-spacing:.02em; font-weight:600;
}
.nav-logo span:last-child{ color: var(--accent); }
.nav-links{
  display:flex; gap: clamp(1.2rem, 3vw, 2.4rem);
  font-size:.88rem;
}
.nav-links a{
  position:relative; color: var(--text-muted);
  transition: color var(--dur-s) var(--ease);
}
.nav-links a::after{
  content:""; position:absolute; inset-inline-start:0; bottom:-6px;
  width:0; height:1px; background: var(--accent);
  transition: width var(--dur-s) var(--ease);
}
.nav-links a:hover{ color: var(--text); }
.nav-links a:hover::after{ width:100%; }

.nav-right{ display:flex; align-items:center; gap:1.2rem; }

.lang-switch{
  display:flex; align-items:center; border:1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-radius:100px; padding:3px; gap:2px;
}
.lang-switch button{
  padding:.35rem .8rem; font-size:.74rem; letter-spacing:.06em;
  border-radius:100px; color: var(--text-muted);
  transition: color var(--dur-s) var(--ease), background var(--dur-s) var(--ease);
}
.lang-switch button.is-active{ background: var(--neon-gradient); color:#fff; font-weight:600; }

.nav-burger{
  display:none; width:34px; height:34px; position:relative;
  border:1px solid var(--border-strong); border-radius:8px;
}
.nav-burger span{
  position:absolute; inset-inline-start:8px; width:18px; height:1px; background: var(--text);
  transition: transform var(--dur-s) var(--ease), opacity var(--dur-s) var(--ease), top var(--dur-s) var(--ease);
}
.nav-burger span:nth-child(1){ top:13px; }
.nav-burger span:nth-child(2){ top:17px; }
.nav-burger span:nth-child(3){ top:21px; }
.nav-burger.is-open span:nth-child(1){ top:17px; transform:rotate(45deg); }
.nav-burger.is-open span:nth-child(2){ opacity:0; }
.nav-burger.is-open span:nth-child(3){ top:17px; transform:rotate(-45deg); }

.nav-mobile{
  display:none;
  position:fixed; inset:64px 0 0 0; z-index:90;
  background: rgba(11,11,13,0.98);
  backdrop-filter: blur(10px);
  flex-direction:column; align-items:center; justify-content:center; gap:2rem;
  transform: translateY(-8px); opacity:0; pointer-events:none;
  transition: opacity var(--dur-m) var(--ease), transform var(--dur-m) var(--ease);
}
.nav-mobile.is-open{ opacity:1; transform:translateY(0); pointer-events:auto; }
.nav-mobile a{ font-family: var(--f-display); font-size:1.6rem; }

/* ============================================================================
   VIEWFINDER FRAME — signature motif
   ============================================================================ */
.viewfinder{ position:relative; }
.vf-corner{
  position:absolute; width:26px; height:26px;
  border-color: var(--accent);
  opacity:.75;
  transition: width var(--dur-m) var(--ease), height var(--dur-m) var(--ease);
}
.vf-corner.tl{ top:0; inset-inline-start:0; border-inline-start:1px solid; border-top:1px solid; }
.vf-corner.tr{ top:0; inset-inline-end:0; border-inline-end:1px solid; border-top:1px solid; }
.vf-corner.bl{ bottom:0; inset-inline-start:0; border-inline-start:1px solid; border-bottom:1px solid; }
.vf-corner.br{ bottom:0; inset-inline-end:0; border-inline-end:1px solid; border-bottom:1px solid; }

/* ============================================================================
   HERO
   ============================================================================ */
.hero{
  min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  position:relative;
  padding-top: 6rem;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0; z-index:-1;
  background:
    radial-gradient(60% 50% at 78% 20%, rgba(91,140,255,0.16), transparent 60%),
    radial-gradient(50% 40% at 15% 85%, rgba(255,95,126,0.13), transparent 60%),
    radial-gradient(40% 30% at 50% 45%, rgba(165,139,255,0.08), transparent 70%),
    var(--bg);
}
.hero-inner{ padding-inline: clamp(1.25rem, 5vw, 3rem); }
.hero-frame{ margin-inline: clamp(-.5rem, -1vw, 0); padding: clamp(1.5rem, 4vw, 2.5rem) 0; }

.hero-kicker{
  display:flex; align-items:center; gap:.7rem;
  font-size:.78rem; letter-spacing:.2em; text-transform:uppercase;
  color: var(--text-muted); margin-bottom:1.6rem;
}
html[data-lang="fa"] .hero-kicker{ letter-spacing:0; text-transform:none; font-size:.9rem; }
.hero-kicker .dot{
  width:7px; height:7px; border-radius:50%; background: var(--rec);
  box-shadow:0 0 0 3px rgba(255,95,126,.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }

.hero-name{
  font-size: clamp(2.6rem, 8.6vw, 6.4rem);
  letter-spacing:-.02em;
  overflow:hidden;
}
.hero-name .line{ display:block; overflow:hidden; }
.hero-name .line span{
  display:block; transform: translateY(110%);
  animation: riseIn var(--dur-l) var(--ease) forwards;
}
.hero-name .line:nth-child(1) span{ animation-delay:.15s; }
.hero-name .line:nth-child(2) span{ animation-delay:.28s; color: var(--accent); font-style:normal; font-weight:800; }
html[data-lang="fa"] .hero-name .line:nth-child(2) span{ font-style:normal; }
@keyframes riseIn{ to{ transform:translateY(0); } }

.hero-role-row{
  display:flex; align-items:center; gap:.9rem; flex-wrap:wrap;
  margin-block: 1.6rem 1.8rem;
  font-family: var(--f-body); font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-muted);
  min-height: 1.8em;
}
.hero-role-row .static{ color: var(--text); }
.role-rotator{ position:relative; color: var(--accent); font-weight:600; }

.hero-desc{ max-width: 46ch; color: var(--text-muted); font-size:1.05rem; margin-bottom: 2.4rem; }

.hero-ctas{ display:flex; gap:1rem; flex-wrap:wrap; }

.btn{
  display:inline-flex; align-items:center; gap:.6rem;
  padding: .95rem 1.7rem;
  border-radius: 100px;
  font-size:.92rem; font-weight:600; letter-spacing:.01em;
  transition: transform var(--dur-s) var(--ease), background var(--dur-s) var(--ease), color var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease);
  white-space:nowrap;
}
.btn-primary{ background: var(--neon-gradient); color:#fff; box-shadow: 0 10px 30px rgba(91,140,255,0.25); }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 36px rgba(255,95,126,0.32); }
.btn-ghost{
  border:1px solid var(--glass-border); color: var(--text);
  background: var(--glass-bg); backdrop-filter: blur(12px);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn svg{ width:16px; height:16px; transition: transform var(--dur-s) var(--ease); }
html[dir="rtl"] .btn svg{ transform: scaleX(-1); }
.btn:hover svg{ transform: translateX(3px); }
html[dir="rtl"] .btn:hover svg{ transform: scaleX(-1) translateX(3px); }

.hero-foot{
  display:flex; justify-content:space-between; align-items:flex-end;
  padding-block: 2rem 1.6rem;
  margin-top: clamp(2rem, 6vw, 4rem);
}
.timecode{
  font-variant-numeric: tabular-nums;
  font-size:.78rem; letter-spacing:.08em; color: var(--text-faint);
  display:flex; align-items:center; gap:.5rem;
}
.timecode b{ color: var(--text-muted); font-weight:600; }
.scroll-cue{
  display:flex; flex-direction:column; align-items:center; gap:.6rem;
  font-size:.68rem; letter-spacing:.2em; text-transform:uppercase; color: var(--text-faint);
}
.scroll-cue .line{ width:1px; height:34px; background: linear-gradient(var(--accent), transparent); animation: scrollLine 1.8s ease-in-out infinite; }
@keyframes scrollLine{ 0%{ transform:scaleY(0); transform-origin:top; } 45%{ transform:scaleY(1); transform-origin:top; } 55%{ transform:scaleY(1); transform-origin:bottom; } 100%{ transform:scaleY(0); transform-origin:bottom; } }

/* ============================================================================
   REVEAL ON SCROLL
   ============================================================================ */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }
.reveal-stagger > *{ transition-delay: calc(var(--i, 0) * 90ms); }

/* ============================================================================
   ABOUT
   ============================================================================ */
.about-grid{
  display:grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 5rem);
  align-items:center;
}
.about-portrait{
  aspect-ratio: 4/5; position:relative;
  background: linear-gradient(160deg, rgba(91,140,255,0.10), rgba(255,95,126,0.08));
  border:1px solid var(--glass-border);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.06);
  border-radius: var(--radius);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.about-portrait .initials{
  font-family: var(--font-en-display); font-size:5rem; color: var(--border-strong);
}
.about-portrait img{
  width:100%; height:100%; object-fit:cover; display:block;
}
.about-portrait .vf-corner{ width:20px; height:20px; margin:14px; }
.about-text p{ color: var(--text-muted); margin-bottom:1.1rem; font-size:1.04rem; }
.about-text p:first-of-type{ color: var(--text); font-size:1.15rem; }
.about-chips{ display:flex; flex-wrap:wrap; gap:.6rem; margin-top:1.8rem; }
.chip{
  border:1px solid var(--glass-border); border-radius:100px;
  background: var(--glass-bg); backdrop-filter: blur(10px);
  padding:.5rem 1.05rem; font-size:.82rem; color: var(--text-muted);
}

.about-video-note{
  display:inline-flex; align-items:center; gap:.7rem;
  margin-top:1.8rem; padding: .85rem 1.3rem;
  background: var(--glass-bg); border:1px solid var(--glass-border);
  backdrop-filter: blur(14px); border-radius: 100px;
  color: var(--text-muted); font-size:.88rem;
  transition: border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
}
.about-video-note svg{ width:19px; height:19px; flex-shrink:0; color: var(--accent-2); }
.about-video-note b{ color: var(--text); font-weight:600; }
.about-video-note:hover{ border-color: var(--accent-2); color: var(--text); transform: translateY(-2px); }

/* ============================================================================
   SERVICES
   ============================================================================ */
.services-grid{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr));
  gap: 1px;
  background: transparent;
}
.service-card{
  background: var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-radius: var(--radius);
  padding: 2.2rem 1.8rem;
  transition: background var(--dur-m) var(--ease), transform var(--dur-m) var(--ease), box-shadow var(--dur-m) var(--ease), border-color var(--dur-m) var(--ease);
  position:relative;
}
.service-card:hover{
  background: var(--glass-bg-strong);
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 22px 44px rgba(91,140,255,0.18);
}
.service-icon{
  width:42px; height:42px; margin-bottom:1.6rem;
  color: var(--accent);
}
.service-icon svg{ width:100%; height:100%; }
.service-card h3{ font-size:1.15rem; margin-bottom:.7rem; }
.service-card p{ color: var(--text-muted); font-size:.92rem; }

/* ============================================================================
   PORTFOLIO
   ============================================================================ */
.portfolio-head{
  display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap:1.5rem;
  margin-bottom: 2.8rem;
}
.filter-tabs{ display:flex; gap:.5rem; flex-wrap:wrap; }
.filter-tab{
  padding:.6rem 1.2rem; border:1px solid var(--glass-border); border-radius:100px;
  background: var(--glass-bg); backdrop-filter: blur(10px);
  font-size:.84rem; color: var(--text-muted);
  transition: all var(--dur-s) var(--ease);
}
.filter-tab.is-active, .filter-tab:hover{ border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* Masonry: CSS multi-column layout. Each card's height follows its own
   image, so rows are never forced into a uniform grid — like Pinterest. */
.portfolio-grid{
  column-count: 3;
  column-gap: var(--gap);
}
.work-card{
  position:relative; overflow:hidden; cursor:pointer;
  background: var(--surface);
  border:1px solid var(--glass-border);
  border-radius: var(--radius);
  display:block;
  break-inside: avoid;
  margin-bottom: var(--gap);
  transition: opacity .5s var(--ease), transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
.work-card.is-hidden{ display:none; }
.work-card:hover{
  transform: translateY(-8px);
  border-color: var(--glass-border);
  box-shadow: 0 26px 54px -12px var(--glow-blue), 0 14px 34px -10px var(--glow-red);
}
.work-thumb{
  position:relative; overflow:hidden;
  background: linear-gradient(150deg, var(--surface-2), var(--bg-alt) 70%);
  display:flex; align-items:center; justify-content:center;
}
.work-thumb img{
  width:100%; height:auto; display:block;
  transition: transform var(--dur-m) var(--ease);
}
.work-thumb .placeholder-icon{ width:34px; height:34px; color: var(--border-strong); }

/* Until a real photo is set in portfolio-data.js, placeholder cards get a
   varied height so the layout still reads as a Pinterest-style mosaic.
   Once thumbnail is a real image, its own proportions take over naturally. */
.work-card:nth-child(6n+1) .work-thumb{ min-height:220px; }
.work-card:nth-child(6n+2) .work-thumb{ min-height:340px; }
.work-card:nth-child(6n+3) .work-thumb{ min-height:260px; }
.work-card:nth-child(6n+4) .work-thumb{ min-height:400px; }
.work-card:nth-child(6n+5) .work-thumb{ min-height:300px; }
.work-card:nth-child(6n+6) .work-thumb{ min-height:360px; }

.work-card::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(to top, rgba(11,11,13,.92) 0%, rgba(11,11,13,.15) 42%, transparent 65%);
  pointer-events:none;
}
.work-card .vf-corner{ z-index:2; opacity:0; transition: opacity var(--dur-s) var(--ease); }
.work-card:hover .vf-corner{ opacity:1; }
.work-card:hover .work-thumb img{ transform:scale(1.04); }

.work-info{
  position:absolute; inset-inline:0; bottom:0; z-index:2;
  padding: 1.4rem 1.5rem;
}
.work-cat{
  display:inline-block; font-size:.68rem; letter-spacing:.16em; text-transform:uppercase;
  color: var(--accent); margin-bottom:.5rem;
}
html[data-lang="fa"] .work-cat{ letter-spacing:0; text-transform:none; font-size:.78rem; }
.work-title{ font-size:1.15rem; }
.work-desc{
  color: var(--text-muted); font-size:.85rem; margin-top:.4rem;
  max-height:0; opacity:0; overflow:hidden;
  transition: max-height var(--dur-s) var(--ease), opacity var(--dur-s) var(--ease), margin var(--dur-s) var(--ease);
}
.work-card:hover .work-desc{ max-height:4em; opacity:1; }

/* ============================================================================
   MODAL
   ============================================================================ */
.modal-overlay{
  position:fixed; inset:0; z-index:150;
  background: rgba(8,8,9,.86); backdrop-filter: blur(6px);
  display:flex; align-items:center; justify-content:center; padding:1.5rem;
  opacity:0; visibility:hidden; transition: opacity var(--dur-m) var(--ease), visibility var(--dur-m) var(--ease);
}
.modal-overlay.is-open{ opacity:1; visibility:visible; }
.modal{
  width:100%; max-width:620px;
  background: var(--glass-bg-strong);
  border:1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  padding: clamp(1.75rem, 4vw, 3rem);
  position:relative;
  transform: translateY(18px) scale(.98); transition: transform var(--dur-m) var(--ease);
}
.modal-overlay.is-open .modal{ transform: translateY(0) scale(1); }
.modal-close{
  position:absolute; top:1.2rem; inset-inline-end:1.2rem;
  width:34px; height:34px; border:1px solid var(--border-strong); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  transition: border-color var(--dur-s), color var(--dur-s);
}
.modal-close:hover{ border-color: var(--accent); color: var(--accent); }
.modal-thumb{
  margin-bottom:1.6rem; display:flex; align-items:center; justify-content:center;
  max-height:70vh; overflow:hidden;
  border-radius: var(--radius-sm);
}
.modal-thumb.is-placeholder{
  aspect-ratio:16/9; background: linear-gradient(150deg, var(--surface-2), var(--bg-alt));
}
.modal-thumb img{ width:auto; height:auto; max-width:100%; max-height:70vh; display:block; margin-inline:auto; border-radius: var(--radius-sm); }
.modal-cat{ color: var(--accent); font-size:.75rem; letter-spacing:.16em; text-transform:uppercase; margin-bottom:.6rem; }
html[data-lang="fa"] .modal-cat{ letter-spacing:0; text-transform:none; }
.modal-title{ font-size:1.7rem; margin-bottom:1rem; }
.modal-desc{ color: var(--text-muted); margin-bottom:1.6rem; }
.modal-link{ display:inline-flex; align-items:center; gap:.5rem; color: var(--accent); font-size:.9rem; font-weight:600; }

/* ============================================================================
   SKILLS
   ============================================================================ */
.skills-panel{
  padding: clamp(1.6rem, 4vw, 2.8rem);
}

.skills-panel-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4vw, 2.2rem);
}
@media (min-width: 860px){
  .skills-panel-grid{ grid-template-columns: 1.15fr 1fr; }
  .skills-col-ai{
    border-inline-start: 1px solid var(--glass-border);
    padding-inline-start: clamp(1.8rem, 4vw, 2.6rem);
  }
}

.skills-col-label{
  font-size:.78rem; letter-spacing:.06em; text-transform:uppercase;
  color: var(--text-muted); margin-bottom:1.3rem;
}

.skills-list{ display:flex; flex-direction:column; gap: clamp(1.3rem, 3vw, 1.8rem); }

.skill-row{ width:100%; }
.skill-head{
  display:flex; align-items:baseline; justify-content:space-between;
  margin-bottom:.6rem; gap:1rem;
}
.skill-name{ font-size:1rem; font-weight:600; color: var(--text); }
.skill-percent{
  font-variant-numeric: tabular-nums;
  font-size:.85rem; font-weight:700; color: var(--accent-2);
}
.skill-track{
  position:relative; width:100%; height:10px;
  border-radius:100px; overflow:hidden;
  background: rgba(255,255,255,0.06);
  border:1px solid var(--glass-border);
}
.skill-fill{
  position:relative;
  width:0%; height:100%;
  border-radius:100px;
  background: var(--neon-gradient);
  box-shadow: 0 0 14px var(--glow-blue), 0 0 18px var(--glow-red);
  transition: width 1.4s var(--ease);
}

.skills-ai-note{
  color: var(--text-muted); font-size:.92rem; line-height:1.6;
  margin-bottom:1.5rem;
}
.skills-ai-chips{ display:flex; flex-direction:column; gap:.7rem; }
.ai-chip{
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:.85rem 1.1rem;
  border:1px solid var(--glass-border); border-radius: var(--radius-sm);
  background: var(--glass-bg); backdrop-filter: blur(10px);
  transition: border-color var(--dur-s) var(--ease), background var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
}
.ai-chip:hover{
  border-color: var(--accent-purple);
  background: var(--glass-bg-strong);
  transform: translateY(-2px);
}
.ai-chip-name{ font-size:.94rem; font-weight:600; color: var(--text); white-space:nowrap; }
.ai-chip-note{ font-size:.82rem; color: var(--text-muted); text-align:end; }

/* ============================================================================
   CONTACT
   ============================================================================ */
.contact{
  background: var(--bg-alt);
  border-top:1px solid var(--border); border-bottom:1px solid var(--border);
}
.contact-inner{ text-align:center; max-width:760px; margin-inline:auto; }
.contact-title{ font-size: clamp(2.1rem, 6vw, 3.6rem); margin-bottom:1.4rem; }
.contact-title em{ color: var(--accent); font-style:normal; font-weight:800; }
html[data-lang="fa"] .contact-title em{ font-style:normal; }
.contact-sub{ color: var(--text-muted); font-size:1.08rem; margin-bottom:2.6rem; max-width:52ch; margin-inline:auto; }

.contact-actions{ display:flex; justify-content:center; gap:1.1rem; flex-wrap:wrap; margin-bottom:3rem; }
.contact-btn{
  display:flex; align-items:center; gap:.8rem;
  padding: 1.05rem 1.9rem; border-radius: 100px;
  border:1px solid var(--glass-border);
  background: var(--glass-bg); backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  transition: transform var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), background var(--dur-s) var(--ease), box-shadow var(--dur-s) var(--ease);
  font-size:.95rem; font-weight:600;
}
.contact-btn svg{ width:20px; height:20px; }
.contact-btn:hover{ transform: translateY(-3px); }
.contact-btn.instagram:hover{ border-color: var(--accent-2); background: rgba(255,95,126,0.1); color: var(--accent-2); box-shadow: 0 14px 34px rgba(255,95,126,0.2); }
.contact-btn.whatsapp:hover{ border-color:#3fae66; background: rgba(63,174,102,.1); color:#6bd393; box-shadow: 0 14px 34px rgba(63,174,102,0.18); }
.contact-btn small{ display:block; font-weight:400; color: var(--text-faint); font-size:.72rem; margin-top:.15rem; }

/* ============================================================================
   FOOTER
   ============================================================================ */
.footer{
  padding: 2.2rem clamp(1.25rem, 5vw, 3rem);
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem;
  font-size:.78rem; color: var(--text-faint);
}
.footer a{ color: var(--text-muted); transition: color var(--dur-s); }
.footer a:hover{ color: var(--accent); }

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 900px){
  .nav-links{ display:none; }
  .nav-burger{ display:block; }
  .nav-mobile{ display:flex; }
  .about-grid{ grid-template-columns:1fr; }
  .about-portrait{ max-width:320px; margin-inline:auto; }
  .portfolio-grid{ column-count: 2; }
}
@media (max-width: 560px){
  .portfolio-grid{ column-count: 1; }
  .hero-foot{ flex-direction:column; align-items:flex-start; gap:1.6rem; }
  .contact-actions{ flex-direction:column; align-items:stretch; }
  .services-grid{ grid-template-columns:1fr; }
  .about-video-note{ white-space:normal; }
  .skills-panel{ padding: 1.3rem; }
}