@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg: #050505;
  --bg-elevated: #0D0D0D;
  --bg-subtle: #151515;
  --border: rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.10);
  --border-hover: rgba(255,255,255,0.18);
  --text: #FFFFFF;
  --text-muted: #A0A0A0;
  --text-faint: #555555;
  --glass: rgba(255,255,255,0.03);
  --glass-border: rgba(255,255,255,0.06);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.6);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.8);
  --shadow-glow: 0 0 40px rgba(255,255,255,0.03);
  --glow-subtle: 0 0 80px rgba(255,255,255,0.02);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 999px;
  --ease: cubic-bezier(.16,1,.3,1);
  --ease-out: cubic-bezier(0,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --font: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-h: 64px;
}

[data-theme="light"]{
  --bg: #F5F5F5;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #EBEBEB;
  --border: rgba(0,0,0,0.06);
  --border-strong: rgba(0,0,0,0.10);
  --border-hover: rgba(0,0,0,0.18);
  --text: #050505;
  --text-muted: #666666;
  --text-faint: #AAAAAA;
  --glass: rgba(255,255,255,0.5);
  --glass-border: rgba(255,255,255,0.7);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(0,0,0,0.02);
  --glow-subtle: 0 0 80px rgba(0,0,0,0.015);
}
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
html[dir="rtl"]{ direction:rtl; }

::-webkit-scrollbar{ width:4px; }
::-webkit-scrollbar-track{ background:transparent; }
::-webkit-scrollbar-thumb{ background:var(--border-strong); border-radius:2px; }
::-webkit-scrollbar-thumb:hover{ background:var(--border-hover); }

body{
  background:var(--bg); color:var(--text); font-family:var(--font);
  font-size:15px; line-height:1.65; font-weight:400;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  cursor:none;
}
@media(max-width:860px),(hover:none){
  body{ cursor:auto; }
}
::selection{ background:var(--text); color:var(--bg); }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input,textarea{ font-family:inherit; background:none; border:none; color:inherit; outline:none; }

h1,h2,h3,h4{ font-weight:600; letter-spacing:-0.03em; line-height:1.1; }
.container{ width:100%; max-width:1100px; margin:0 auto; padding:0 24px; }

/* ---- Custom Cursor ---- */
.cursor-dot{
  position:fixed; width:6px; height:6px; border-radius:50%;
  background:var(--text); pointer-events:none; z-index:99999;
  transform:translate(-50%,-50%); transition:width .2s var(--ease), height .2s var(--ease), background .2s var(--ease);
}
.cursor-ring{
  position:fixed; width:28px; height:28px; border-radius:50%;
  border:1px solid var(--text-muted); pointer-events:none; z-index:99998;
  transform:translate(-50%,-50%); transition:width .35s var(--ease-spring), height .35s var(--ease-spring), border-color .3s var(--ease), background .3s var(--ease);
}
.cursor-trail{
  position:fixed; width:4px; height:4px; border-radius:50%;
  background:var(--text); pointer-events:none; z-index:99997;
  opacity:0.2; transform:translate(-50%,-50%);
}
@media(max-width:860px),(hover:none){
  .cursor-dot,.cursor-ring,.cursor-trail{ display:none; }
}
.cursor-ring.hover-link{ width:36px; height:36px; border-color:var(--text); background:rgba(255,255,255,0.03); }
.cursor-ring.hover-btn{ width:44px; height:44px; border-color:var(--text); background:rgba(255,255,255,0.05); }
.cursor-dot.hover-btn{ width:8px; height:8px; }

/* ---- Logo System ---- */
.logo img{ height:24px; width:auto; transition:opacity .25s var(--ease); }

/* ---- Loader ---- */
#loader{
  position:fixed; inset:0; z-index:9999; background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .6s var(--ease), visibility .6s var(--ease);
}
#loader.hide{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-inner{ text-align:center; }
.loader-ring{ width:28px; height:28px; position:relative; margin:0 auto 16px; }
.loader-ring::before,.loader-ring::after{
  content:''; position:absolute; inset:0; border-radius:50%;
  border:1px solid transparent;
}
.loader-ring::before{ border-top-color:var(--text); animation:spin .8s linear infinite; }
.loader-ring::after{ border-bottom-color:var(--text-muted); animation:spin 1.2s linear infinite reverse; opacity:0.3; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.loader-text{ font-size:0.7rem; color:var(--text-faint); font-family:var(--font-mono); letter-spacing:0.12em; text-transform:uppercase; }

/* ---- Scroll Progress ---- */
#scroll-progress{
  position:fixed; bottom:0; left:0; height:1px; width:0%; z-index:2001;
  background:var(--text); transition:width .08s linear;
}

/* ---- Navbar ---- */
header{
  position:fixed; top:12px; left:12px; right:12px; z-index:1000;
  border-radius:var(--radius-lg); background:var(--glass);
  backdrop-filter:blur(20px) saturate(120%);
  border:1px solid var(--glass-border); max-width:1100px; margin:0 auto;
  box-shadow:var(--shadow-sm); transition:transform .4s var(--ease);
}
header.hidden{ transform:translateY(-120%); }
.navbar{ height:var(--nav-h); display:flex; align-items:center; justify-content:space-between; padding:0 20px; }
.logo{ display:flex; align-items:center; gap:8px; }

.nav-links{ display:flex; align-items:center; gap:2px; }
.nav-links a{
  font-size:0.85rem; color:var(--text-faint); padding:6px 14px; border-radius:var(--radius-sm);
  transition:all .25s var(--ease); font-weight:500; position:relative;
}
.nav-links a:hover{ color:var(--text-muted); background:var(--glass); }
.nav-links a.active{ color:var(--text); }

/* ---- Nav Dropdown ---- */
.nav-dropdown{ position:relative; }
/* Hover bridge — invisible area between trigger and menu to prevent flicker */
.nav-dropdown::after{ content:''; position:absolute; left:0; right:0; top:100%; height:12px; pointer-events:none; }
.nav-dropdown:hover::after{ pointer-events:auto; }
.nav-dropdown-trigger{ display:flex; align-items:center; gap:4px; cursor:pointer; }
.nav-dropdown-trigger::after{ content:''; font-family:'Font Awesome 6 Free'; font-weight:900; font-size:0.5rem; color:var(--text-faint); transition:transform .35s var(--ease); }
.nav-dropdown:hover .nav-dropdown-trigger::after,
.nav-dropdown.open .nav-dropdown-trigger::after{ transform:rotate(180deg); }
.nav-dropdown-menu{
  position:absolute; top:calc(100% + 12px); left:50%; transform:translateX(-50%) translateY(8px);
  min-width:220px; padding:8px; border-radius:16px;
  background:rgba(12,12,12,0.88); backdrop-filter:blur(28px); -webkit-backdrop-filter:blur(28px);
  border:1px solid rgba(255,255,255,0.07);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .35s cubic-bezier(.16,1,.3,1), visibility .35s, transform .35s cubic-bezier(.16,1,.3,1);
  box-shadow:0 20px 60px rgba(0,0,0,0.55),0 0 0 1px rgba(255,255,255,0.03) inset;
  z-index:9999;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu,
.nav-dropdown-menu:hover{ opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0); }
.nav-dropdown-menu a{
  display:block; padding:10px 16px; border-radius:10px;
  font-size:0.8rem; color:var(--text-muted); white-space:nowrap;
  transition:all .2s var(--ease); text-decoration:none;
}
.nav-dropdown-menu a:hover{ background:rgba(255,255,255,0.05); color:var(--text); }
.nav-dropdown-menu a:focus-visible{ outline:2px solid var(--text); outline-offset:-2px; }
[data-theme="light"] .nav-dropdown-menu{ background:rgba(250,250,250,0.92); backdrop-filter:blur(28px); -webkit-backdrop-filter:blur(28px); border-color:rgba(0,0,0,0.07); box-shadow:0 20px 60px rgba(0,0,0,0.08); }
[data-theme="light"] .nav-dropdown-menu a:hover{ background:rgba(0,0,0,0.04); }

.nav-actions{ display:flex; align-items:center; gap:4px; }
.icon-btn{
  width:34px; height:34px; border-radius:var(--radius-full);
  display:flex; align-items:center; justify-content:center;
  color:var(--text-faint); transition:all .25s var(--ease); font-size:0.85rem;
}
.icon-btn:hover{ color:var(--text); background:var(--glass); }

.lang-switch{ position:relative; }
.lang-switch>button{
  height:34px; padding:0 10px; border-radius:var(--radius-full);
  font-size:0.7rem; font-weight:600; letter-spacing:0.06em; text-transform:uppercase;
  color:var(--text-faint); transition:all .25s var(--ease); display:flex; align-items:center; gap:4px;
}
.lang-switch>button:hover{ color:var(--text); background:var(--glass); }
.lang-menu{
  position:absolute; top:calc(100% + 6px); right:0; background:var(--bg-elevated);
  border:1px solid var(--border-strong); border-radius:var(--radius-md);
  box-shadow:var(--shadow-md); padding:4px; min-width:120px;
  opacity:0; visibility:hidden; transform:translateY(-4px); transition:all .25s var(--ease);
}
.lang-switch.open .lang-menu{ opacity:1; visibility:visible; transform:translateY(0); }
.lang-menu button{
  width:100%; text-align:left; padding:6px 10px; border-radius:var(--radius-sm);
  font-size:0.8rem; display:flex; justify-content:space-between; color:var(--text-muted);
  transition:background .2s var(--ease);
}
.lang-menu button:hover{ background:var(--bg-subtle); color:var(--text); }
.lang-menu button span{ color:var(--text-faint); font-size:0.7rem; }

.hamburger{
  display:none; width:34px; height:34px; border-radius:var(--radius-full);
  flex-direction:column; align-items:center; justify-content:center; gap:3px;
  color:var(--text-faint); transition:color .2s;
}
.hamburger:hover{ color:var(--text); }
.hamburger span,.hamburger::before,.hamburger::after{ content:''; display:block; width:14px; height:1px; background:currentColor; transition:transform .3s var(--ease); }

/* ---- Buttons ---- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:10px 22px; border-radius:var(--radius-full); font-size:0.85rem; font-weight:500;
  transition:all .3s var(--ease); white-space:nowrap; position:relative; overflow:hidden;
}
.btn-primary{ background:var(--text); color:var(--bg); }
.btn-primary:hover{ opacity:.88; transform:scale(.97); }
.btn-outline{ border:1px solid var(--border-strong); color:var(--text-muted); }
.btn-outline:hover{ border-color:var(--border-hover); color:var(--text); background:var(--glass); }
.btn-ghost{ color:var(--text-faint); }
.btn-ghost:hover{ color:var(--text); background:var(--glass); }
.btn-sm{ padding:7px 14px; font-size:0.8rem; }

.btn .ripple{
  position:absolute; border-radius:50%; background:rgba(255,255,255,0.15);
  transform:scale(0); animation:rippleAnim .6s var(--ease-out) forwards;
  pointer-events:none;
}
[data-theme="light"] .btn .ripple{ background:rgba(0,0,0,0.08); }
@keyframes rippleAnim{
  to{ transform:scale(4); opacity:0; }
}

.btn-disabled{ opacity:.4; cursor:not-allowed; pointer-events:none; }

/* ---- Section ---- */
.section{ padding:40px 0; position:relative; }
.section-head{ margin-bottom:40px; }
.section-head .label{
  font-family:var(--font-mono); font-size:0.65rem; letter-spacing:0.12em; text-transform:uppercase;
  color:var(--text-faint); margin-bottom:12px;
}
.section-head h2{ font-size:clamp(1.6rem,3vw,2.4rem); max-width:560px; }
.section-head p{ color:var(--text-muted); font-size:0.9rem; max-width:460px; margin-top:10px; }

/* ---- Vignette ---- */
.vignette{
  position:fixed; inset:0; pointer-events:none; z-index:2;
  background:radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.3) 100%);
}

/* ---- Noise ---- */
#noise{
  position:fixed; inset:0; z-index:1; pointer-events:none; opacity:0.012;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:200px 200px;
}

/* ---- Hero ---- */
.hero{
  position:relative; min-height:100vh;
  display:flex; align-items:center; padding-top:80px; overflow:hidden;
}
.hero-grid{
  position:absolute; inset:0; z-index:0;
  background-image:linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, black 30%, transparent 75%);
}
.hero-inner{ position:relative; z-index:1; width:100%; display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }

.hero-tag{
  font-family:var(--font-mono); font-size:0.7rem; color:var(--text-faint);
  letter-spacing:0.08em; margin-bottom:20px;
}
.hero-tag .hero-tag-dot{ color:var(--text); }
.hero-tag [data-i18n]{ color:inherit; }
.hero-copy h1{ font-size:clamp(2rem,4.5vw,3.6rem); margin-bottom:14px; font-weight:800; }
.hero-copy h1 .highlight{ color:var(--text); border-bottom:1px solid var(--border-strong); }
.hero-copy p{ font-size:0.9rem; color:var(--text-muted); max-width:420px; margin-bottom:28px; line-height:1.65; }
.hero-ctas{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:28px; }
.hero-socials{ display:flex; gap:6px; }

/* ---- Model (Hero PNG) ---- */
.model-container{ position:relative; display:flex; align-items:center; justify-content:center; max-width:500px; margin:0 auto; }
.model-img{ width:80%; height:auto; object-fit:contain; animation:modelFloat 4s var(--ease) infinite; filter:drop-shadow(0 20px 40px rgba(0,0,0,.3)); }

@keyframes modelFloat{
  0%,100%{ transform:translateY(0); }
  50%{ transform:translateY(-8px); }
}

/* ---- Stats Row ---- */
.stats-row{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--border); border-radius:var(--radius-lg); overflow:hidden; margin-top:48px;
}
.stat-card{
  background:var(--bg-elevated); padding:28px 24px; text-align:center;
  transition:background .4s var(--ease);
}
.stat-card:hover{ background:var(--bg-subtle); }
.stat-card .num{
  font-size:2rem; font-weight:700; letter-spacing:-0.03em;
  font-variant-numeric:tabular-nums;
}
.stat-card .label{ font-size:0.75rem; color:var(--text-faint); margin-top:4px; text-transform:uppercase; letter-spacing:0.06em; }

/* ---- Tech Marquee ---- */
.tech-marquee{ overflow:hidden; border-top:1px solid var(--border); border-bottom:1px solid var(--border); padding:18px 0; margin-top:48px; }
.marquee-track{ display:flex; gap:40px; white-space:nowrap; animation:marquee 30s linear infinite; width:max-content; }
.marquee-track span{ font-size:0.82rem; color:var(--text-faint); font-family:var(--font-mono); }
@keyframes marquee{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* ---- Grids ---- */
.grid{ display:grid; gap:20px; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }

/* ---- Cards ---- */
.card{
  background:var(--bg-elevated); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:24px;
  transition:border-color .35s var(--ease), transform .35s var(--ease), box-shadow .4s var(--ease);
}
.card:hover{ border-color:var(--border-hover); transform:translateY(-2px); box-shadow:var(--shadow-glow); }

/* ---- Skills ---- */
.skills-grid{ align-items:start; }
.skill-card{ padding:24px; }
.skill-card .icon{
  width:40px; height:40px; border-radius:var(--radius-md); background:var(--bg-subtle);
  display:flex; align-items:center; justify-content:center; font-size:0.95rem;
  color:var(--text-muted); margin-bottom:16px; transition:all .35s var(--ease);
}
.skill-card:hover .icon{ background:var(--text); color:var(--bg); }
.skill-card h3{ font-size:0.95rem; margin-bottom:6px; }
.skill-card .desc{ font-size:0.8rem; color:var(--text-muted); line-height:1.5; }
.skill-card .meta{ display:flex; gap:6px; flex-wrap:wrap; margin-top:12px; }
.skill-tag{
  font-size:0.65rem; padding:3px 8px; border-radius:var(--radius-sm);
  border:1px solid var(--border); color:var(--text-faint); font-family:var(--font-mono);
  transition:border-color .2s var(--ease), color .2s var(--ease);
}
.skill-tag.active{ border-color:var(--text); color:var(--text); }

/* ---- Services ---- */
.services-grid{ margin-bottom:32px; }
.service-card{ display:flex; flex-direction:column; gap:8px; }
.service-icon{
  width:40px; height:40px; border-radius:var(--radius-md); background:var(--bg-subtle);
  border:1px solid var(--border); display:flex; align-items:center; justify-content:center;
  font-size:1.05rem; margin-bottom:6px; transition:all .35s var(--ease);
}
.service-card:hover .service-icon{ background:var(--text); transform:translateY(-2px); }
.service-card h3{ font-size:0.95rem; font-weight:700; letter-spacing:-0.01em; }
.service-card p{ font-size:0.8rem; color:var(--text-muted); line-height:1.6; }
.service-cta{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:20px;
  background:var(--bg-elevated); border:1px solid var(--border);
  border-radius:var(--radius-xl); padding:28px 32px;
}
.service-cta h3{ font-size:1.15rem; font-weight:700; margin-bottom:6px; letter-spacing:-0.02em; }
.service-cta p{ font-size:0.85rem; color:var(--text-muted); line-height:1.6; max-width:480px; }
.service-cta-actions{ display:flex; flex-wrap:wrap; gap:10px; }
.service-cta-actions .btn i{ margin-right:2px; }
@media (max-width:600px){
  .service-cta{ padding:24px; }
  .service-cta-actions{ width:100%; }
  .service-cta-actions .btn{ flex:1; justify-content:center; }
}

/* ---- Timeline ---- */
.about-wrap{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:60px; align-items:start; }
.about-panel{ position:sticky; top:100px; }
.timeline{ position:relative; }
.timeline-line{ position:absolute; left:0; top:0; bottom:0; width:1px; background:var(--border); }
.timeline-line span{ display:block; width:100%; height:0; background:var(--text); transition:height 1.8s var(--ease); }
.timeline-line span.animate{ height:100%; }
.timeline-card{
  position:relative; padding-left:32px; padding-bottom:36px;
  opacity:0; transform:translateY(20px); transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.timeline-card.visible{ opacity:1; transform:translateY(0); }
.timeline-card::before{
  content:''; position:absolute; left:-4px; top:4px; width:9px; height:9px;
  border-radius:50%; background:var(--bg); border:1px solid var(--border-hover);
  transition:all .35s var(--ease);
}
.timeline-card:hover::before{ background:var(--text); border-color:var(--text); }
.timeline-card:last-child{ padding-bottom:0; }
.timeline-card .year{ font-family:var(--font-mono); font-size:0.7rem; color:var(--text-faint); margin-bottom:6px; }
.timeline-card h4{ font-size:1.05rem; margin-bottom:4px; }
.timeline-card p{ font-size:0.85rem; color:var(--text-muted); line-height:1.6; }
.timeline-card .techs{ display:flex; gap:4px; flex-wrap:wrap; margin-top:10px; }

/* ---- Featured Project — Vertex MVP 1.0 ---- */
.featured-showcase{
  display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center;
  background:var(--bg-elevated); border:1px solid var(--border);
  border-radius:var(--radius-2xl); padding:48px;
  transition:border-color .4s var(--ease);
}
.featured-showcase:hover{ border-color:var(--border-hover); }
.featured-media{ position:relative; border-radius:var(--radius-xl); overflow:hidden; }
.featured-video{
  width:100%; display:block; border-radius:var(--radius-xl);
  aspect-ratio:16/9; object-fit:cover;
  border:1px solid var(--border); transition:border-color .35s var(--ease);
}
.featured-media:hover .featured-video{ border-color:var(--border-hover); }
.featured-video-label{
  position:absolute; bottom:16px; left:16px;
  display:flex; align-items:center; gap:8px;
  font-size:0.72rem; font-family:var(--font-mono); color:var(--text-faint);
  background:var(--bg); padding:6px 14px; border-radius:var(--radius-full);
  border:1px solid var(--border); letter-spacing:0.04em;
  backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
}
.featured-video-icon{ font-size:0.65rem; color:var(--text-muted); }
.featured-info{ display:flex; flex-direction:column; gap:20px; }
.featured-badge{
  display:inline-flex; align-items:center; align-self:flex-start;
  font-family:var(--font-mono); font-size:0.65rem; letter-spacing:0.08em;
  text-transform:uppercase; color:var(--text-muted);
  background:var(--bg-subtle); border:1px solid var(--border);
  padding:6px 14px; border-radius:var(--radius-full);
}
/* ---- Under development badge ---- */
.dev-badge{
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--font-mono); font-size:0.6rem; font-weight:600;
  letter-spacing:0.1em; text-transform:uppercase;
  color:#f0b429; background:rgba(240,180,41,0.10);
  border:1px solid rgba(240,180,41,0.35);
  padding:5px 12px; border-radius:var(--radius-full);
  white-space:nowrap; line-height:1;
}
[data-theme="light"] .dev-badge{ color:#9a6a00; background:rgba(224,150,10,0.12); border-color:rgba(224,150,10,0.40); }
.dev-badge::before{
  content:''; width:6px; height:6px; border-radius:50%;
  background:currentColor; flex-shrink:0;
  animation:dev-pulse 1.9s ease-out infinite;
}
@keyframes dev-pulse{
  0%{ box-shadow:0 0 0 0 rgba(240,180,41,0.45); }
  70%{ box-shadow:0 0 0 7px rgba(240,180,41,0); }
  100%{ box-shadow:0 0 0 0 rgba(240,180,41,0); }
}
@media (prefers-reduced-motion:reduce){ .dev-badge::before{ animation:none; } }
.featured-badge-row{
  display:flex; flex-wrap:wrap; align-items:center; gap:8px;
  align-self:flex-start;
}
.featured-title{
  font-size:clamp(1.6rem,3vw,2.4rem); font-weight:600;
  letter-spacing:-0.02em; line-height:1.2;
}
.featured-desc{
  font-size:0.88rem; color:var(--text-muted); line-height:1.7;
  max-width:540px;
}
.featured-features{
  display:grid; grid-template-columns:1fr 1fr; gap:10px 20px;
  padding:20px 0; border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.featured-feature{
  display:flex; align-items:center; gap:10px;
  font-size:0.82rem; color:var(--text-muted); padding:4px 0;
}
.featured-feature i{
  width:18px; font-size:0.75rem; color:var(--text-faint);
  text-align:center; flex-shrink:0;
}
.featured-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:4px; }
.featured-btn{ position:relative; overflow:hidden; }
.featured-btn.btn-primary::after{
  content:''; position:absolute; inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.12) 50%,transparent 70%);
  transform:translateX(-100%); transition:transform .6s var(--ease);
}
.featured-btn.btn-primary:hover::after{ transform:translateX(100%); }
.featured-btn.btn-outline::after{
  content:''; position:absolute; inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.04) 50%,transparent 70%);
  transform:translateX(-100%); transition:transform .6s var(--ease);
}
.featured-btn.btn-outline:hover::after{ transform:translateX(100%); }

/* ---- CTA ---- */
.cta-band{
  border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:60px 48px; text-align:center; background:var(--bg-elevated);
  transition:border-color .3s var(--ease);
}
.cta-band:hover{ border-color:var(--border-strong); }
.cta-band h2{ font-size:clamp(1.4rem,2.5vw,2rem); margin-bottom:10px; }
.cta-band p{ color:var(--text-muted); margin-bottom:24px; font-size:0.9rem; }

/* ---- Premium Contact Form ---- */
.contact-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start; }
.contact-card{
  border:1px solid var(--border); border-radius:var(--radius-xl);
  padding:32px; background:var(--bg-elevated);
  transition:border-color .3s var(--ease);
}
.contact-card:hover{ border-color:var(--border-strong); }
.contact-card h3{ font-size:1.2rem; margin-bottom:4px; }
.contact-card .contact-sub{ font-size:0.85rem; color:var(--text-muted); margin-bottom:24px; }

.form-group{ margin-bottom:18px; }
.form-group label{
  display:block; font-size:0.75rem; margin-bottom:6px; color:var(--text-faint);
  font-weight:500; letter-spacing:0.02em;
}
.form-group input,.form-group textarea{
  width:100%; padding:10px 14px; border-radius:var(--radius-md);
  border:1px solid var(--border); background:var(--bg);
  color:var(--text); outline:none; transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
  font-size:0.9rem;
}
.form-group input:focus,.form-group textarea:focus{
  border-color:var(--border-hover); box-shadow:0 0 0 3px rgba(255,255,255,0.03);
}
.form-group textarea{ resize:vertical; min-height:100px; }

.contact-info-list{ margin-top:0; }
.contact-info-item{
  display:flex; align-items:center; gap:12px; padding:14px 16px;
  border:1px solid var(--border); border-radius:var(--radius-md); margin-bottom:10px;
  transition:border-color .25s var(--ease);
  text-align:left; width:100%;
}
.contact-info-item:hover{ border-color:var(--border-hover); }

.hp-field{ position:absolute!important; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; opacity:0; pointer-events:none; }
.btn-spinner{
  display:none; width:14px; height:14px; border-radius:50%;
  border:2px solid rgba(0,0,0,.15); border-top-color:currentColor; animation:spin .7s linear infinite;
}
#contact-form.is-loading .btn-label{ opacity:.6; }
#contact-form.is-loading .btn-spinner{ display:inline-block; }
.form-status{ font-size:0.78rem; margin-top:10px; text-align:center; min-height:1.2em; font-family:var(--font-mono); color:var(--text-faint); }

/* ---- Footer ---- */
footer{ border-top:1px solid var(--border); padding:60px 0 24px; margin-top:60px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.footer-brand .logo img{ height:20px; }
.footer-brand p{ color:var(--text-muted); font-size:0.84rem; margin-top:10px; max-width:240px; line-height:1.6; }
.footer-col h4{ font-size:0.74rem; margin-bottom:14px; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-faint); font-weight:600; }
.footer-col ul{ display:flex; flex-direction:column; gap:6px; }
.footer-col a,.footer-col button{
  font-size:0.84rem; color:var(--text-muted); transition:color .25s var(--ease);
  font-weight:500; background:none; border:none; cursor:pointer; display:inline-flex; align-items:center; gap:6px; padding:0; font-family:inherit;
}
.footer-col a:hover,.footer-col button:hover{ color:var(--text); }
.footer-social{ display:flex; gap:6px; margin-top:14px; }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:20px; border-top:1px solid var(--border); font-size:0.76rem; color:var(--text-faint); flex-wrap:wrap; gap:8px; }

/* ---- Back to Top ---- */
#back-to-top{
  position:fixed; bottom:24px; right:24px; width:40px; height:40px; border-radius:50%; z-index:900;
  background:var(--bg-elevated); border:1px solid var(--border); box-shadow:var(--shadow-md);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(8px);
  transition:all .3s var(--ease); font-size:0.9rem; color:var(--text-faint);
}
#back-to-top.show{ opacity:1; visibility:visible; transform:translateY(0); }
#back-to-top:hover{ color:var(--text); border-color:var(--border-hover); }

/* ---- Reveal Animations ---- */
.reveal{ opacity:0; transform:translateY(30px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }
.reveal-scale{ opacity:0; transform:scale(0.95); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal-scale.in{ opacity:1; transform:scale(1); }

/* ---- 404 ---- */
.error-page{ min-height:80vh; display:flex; align-items:center; justify-content:center; text-align:center; padding:80px 24px; }
.error-code{ font-size:clamp(5rem,15vw,10rem); font-weight:800; line-height:1; letter-spacing:-0.04em; color:var(--text); display:block; }
.error-title{ font-size:clamp(1.4rem,3vw,2rem); margin-top:12px; }
.error-desc{ color:var(--text-muted); margin:12px 0 32px; max-width:400px; font-size:0.95rem; }
.error-actions{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }

/* ---- Legal ---- */
.legal-page{ max-width:760px; margin:0 auto; }
.legal-page .updated{ font-family:var(--font-mono); font-size:0.76rem; color:var(--text-faint); margin-bottom:32px; }
.legal-page h2{ font-size:clamp(1.6rem,2.5vw,2.2rem); margin-bottom:12px; }
.legal-page section{ margin-bottom:32px; }
.legal-page section h3{ font-size:1rem; margin-bottom:10px; }
.legal-page p{ color:var(--text-muted); margin-bottom:10px; font-size:0.9rem; }
.legal-page ul{ list-style:disc; padding-left:18px; margin-bottom:10px; color:var(--text-muted); font-size:0.9rem; }
.legal-page a{ color:var(--text); text-decoration:underline; text-underline-offset:2px; }
.legal-toc{ display:flex; flex-wrap:wrap; gap:4px; margin-bottom:36px; }
.legal-toc a{ font-size:0.72rem; padding:6px 12px; border:1px solid var(--border); border-radius:var(--radius-full); color:var(--text-muted); text-decoration:none; transition:all .25s var(--ease); }
.legal-toc a:hover{ border-color:var(--text); color:var(--text); }

/* ---- Cookie ---- */
#cookie-banner{
  position:fixed; bottom:0; left:0; right:0; z-index:5000;
  background:var(--bg-elevated); border-top:1px solid var(--border);
  padding:12px 24px; display:flex; align-items:center; justify-content:center; gap:16px;
  flex-wrap:wrap; transform:translateY(100%); opacity:0;
  transition:all .4s var(--ease);
}
#cookie-banner.show{
  transform:translateY(0); opacity:1;
  animation: cookieUp .5s cubic-bezier(.16,1,.3,1) forwards;
}
#cookie-banner.hide{
  animation: cookieDown .4s cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes cookieUp{
  0%{ transform:translateY(100%) scale(.97); opacity:0; }
  100%{ transform:translateY(0) scale(1); opacity:1; }
}
@keyframes cookieDown{
  0%{ transform:translateY(0) scale(1); opacity:1; }
  100%{ transform:translateY(100%) scale(.97); opacity:0; }
}
#cookie-banner p{ font-size:0.8rem; color:var(--text-muted); max-width:480px; }
#cookie-banner a{ color:var(--text); text-decoration:underline; }
#cookie-banner .btn{ flex-shrink:0; }

/* ---- Focus ---- */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:1px solid var(--text); outline-offset:2px;
}
.skip-link{
  position:absolute; left:12px; top:-50px; background:var(--bg-elevated); color:var(--text);
  padding:6px 14px; border-radius:var(--radius-sm); border:1px solid var(--border);
  z-index:3000; transition:top .2s var(--ease); font-size:0.84rem;
}
.skip-link:focus{ top:12px; }

/* ---- Modal ---- */
.modal-overlay{
  position:fixed; inset:0; z-index:10000;
  background:rgba(0,0,0,0.6); backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transition:all .35s var(--ease);
  padding:24px;
}
.modal-overlay.open{ opacity:1; visibility:visible; }
.modal{
  background:var(--bg-elevated); border:1px solid var(--border);
  border-radius:var(--radius-xl); width:100%; max-width:440px;
  padding:32px; transform:translateY(20px) scale(.96);
  transition:transform .35s var(--ease);
}
.modal-overlay.open .modal{ transform:translateY(0) scale(1); }
.modal-header{ display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
.modal-header h3{ font-size:1.15rem; font-weight:600; }
.btn-icon{
  width:32px; height:32px; border-radius:var(--radius-full);
  display:flex; align-items:center; justify-content:center;
  color:var(--text-faint); transition:all .2s var(--ease); font-size:1rem;
}
.btn-icon:hover{ color:var(--text); background:var(--bg-subtle); }
.modal-form{ display:flex; flex-direction:column; gap:16px; }
.modal-field{ display:flex; flex-direction:column; gap:6px; }
.modal-field label{ font-size:0.8rem; font-weight:500; color:var(--text-muted); }
.modal-optional{ font-weight:400; color:var(--text-faint); font-size:0.75rem; }
.modal-field input,.modal-field textarea{
  padding:10px 14px; border:1px solid var(--border); border-radius:var(--radius-md);
  font-size:0.88rem; color:var(--text); background:var(--bg-subtle);
  transition:border-color .25s var(--ease);
}
.modal-field input:focus,.modal-field textarea:focus{ border-color:var(--border-hover); }
.modal-field textarea{ resize:vertical; min-height:90px; }
.modal-actions{ display:flex; gap:10px; margin-top:4px; }
.modal-actions .btn{ flex:1; }

/* ---- Toast ---- */
#toast{
  position:fixed; bottom:32px; left:50%; transform:translateX(-50%) translateY(20px);
  z-index:20000; background:var(--bg-elevated); border:1px solid var(--border);
  border-radius:var(--radius-full); padding:14px 28px;
  font-size:0.85rem; color:var(--text); white-space:nowrap;
  opacity:0; visibility:hidden; box-shadow:var(--shadow-md);
  pointer-events:none;
}
#toast.show{
  opacity:1; visibility:visible;
  animation: toastIn .45s cubic-bezier(.16,1,.3,1) forwards;
}
#toast.hide{
  animation: toastOut .35s cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes toastIn{
  0%{ transform:translateX(-50%) translateY(24px) scale(.96); opacity:0; }
  100%{ transform:translateX(-50%) translateY(0) scale(1); opacity:1; }
}
@keyframes toastOut{
  0%{ transform:translateX(-50%) translateY(0) scale(1); opacity:1; }
  100%{ transform:translateX(-50%) translateY(-12px) scale(.96); opacity:0; }
}

/* ---- Nav Hide on Scroll ---- */
.nav-hidden{ transform:translateY(-120%); }

/* ---- Responsive ---- */
@media(max-width:1024px){
  .hero-inner{ gap:40px; }
  .about-wrap,.contact-wrap{ gap:40px; }
}
@media(max-width:980px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-copy p{ max-width:100%; }
  .hero-ctas{ justify-content:center; }
  .hero-socials{ justify-content:center; }
  .hero-copy{ text-align:center; }
  .hero-copy h1{ text-align:center; }
  .hero-tag{ text-align:center; }
  .about-wrap,.contact-wrap{ grid-template-columns:1fr; }
  .about-panel{ position:static; }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
  .skills-grid.grid-2{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:repeat(2,1fr); }
  .stats-row{ grid-template-columns:repeat(2,1fr); }
  .model-container{ max-width:350px; }
  .featured-showcase{ grid-template-columns:1fr; gap:40px; padding:32px; }
}
@media(max-width:720px){
  header{ left:8px; right:8px; top:8px; }
  .navbar{ padding:0 12px; }
  .nav-links{
    position:fixed; top:calc(var(--nav-h) + 16px); left:8px; right:8px;
    background:var(--bg-elevated); border:1px solid var(--border); border-radius:var(--radius-md);
    flex-direction:column; padding:16px; transform:translateY(-120%); opacity:0;
    transition:all .3s var(--ease); gap:4px; z-index:999;
  }
  .nav-links.open{ transform:translateY(0); opacity:1; }
  .nav-links a{ padding:10px 14px; }
  .nav-dropdown{ width:100%; }
  .nav-dropdown::after{ display:none; }
  .nav-dropdown-trigger{ padding:10px 14px; justify-content:space-between; }
  .nav-dropdown-trigger::after{ font-size:0.55rem; color:var(--text-faint); }
  .nav-dropdown.open .nav-dropdown-trigger::after{ transform:rotate(180deg); }
  .nav-dropdown-menu{
    position:static; transform:none; opacity:1; visibility:visible; pointer-events:auto;
    background:rgba(255,255,255,0.02); border:1px solid rgba(255,255,255,0.04);
    border-radius:10px; padding:6px; margin:4px 8px 0; min-width:auto; z-index:1;
    display:none;
  }
  .nav-dropdown.open .nav-dropdown-menu{ display:block; }
  .nav-dropdown-menu a{ font-size:0.78rem; padding:8px 12px; border-radius:8px; }
  .nav-dropdown-menu a:hover{ background:rgba(255,255,255,0.04); }
  .hamburger{ display:flex; }
  .grid-4,.grid-3,.grid-2,.footer-grid{ grid-template-columns:1fr; }
  .section{ padding:40px 0; }
  .cta-band{ padding:36px 24px; }
  .footer-bottom{ flex-direction:column; text-align:center; gap:4px; }
  .stats-row{ grid-template-columns:repeat(2,1fr); }
  .stat-card{ padding:20px 16px; }
  .stat-card .num{ font-size:1.5rem; }
  .model-container{ max-width:280px; }
  .featured-showcase{ padding:24px; gap:32px; }
  .featured-features{ grid-template-columns:1fr; }
  .featured-actions{ flex-direction:column; }
  .featured-actions .btn{ width:100%; justify-content:center; }
}
@media(max-width:480px){
  .container{ padding:0 16px; }
  .hero-copy h1{ font-size:clamp(1.8rem,8vw,2.5rem); }
  .hero-ctas{ flex-direction:column; align-items:stretch; }
  .hero-ctas .btn{ width:100%; }
  .section-head h2{ font-size:clamp(1.4rem,6vw,1.8rem); }
  .contact-wrap{ gap:32px; }
  .lang-menu{ right:-20px; }
  .error-code{ font-size:3.5rem; }
}

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

/* ---- Portfolio polish additions ---- */
.logo-name{font-weight:700;letter-spacing:-.03em;font-size:.88rem;color:var(--text);white-space:nowrap}.logo-name span{color:var(--text-faint);font-weight:500}@media(max-width:860px){.logo-name{display:none}}

/* ---- 3D Hero Object (vertex3d.js) ---- */
#vertex3d{ position:absolute; inset:0; z-index:2; }
#vertex3d canvas{ width:100%!important; height:100%!important; display:block; }
.model-container.has-3d .model-img{ visibility:hidden; animation:none; }

/* ---- GitHub Activity ---- */
#activity-card .heat{ display:grid; grid-template-rows:repeat(7,1fr); grid-auto-flow:column; gap:3px; overflow-x:auto; padding-bottom:6px; }
#activity-card .heat i{ width:12px; height:12px; border-radius:3px; background:var(--border); }
#activity-card .heat i[data-l="1"]{ background:color-mix(in srgb, var(--text) 22%, transparent); }
#activity-card .heat i[data-l="2"]{ background:color-mix(in srgb, var(--text) 42%, transparent); }
#activity-card .heat i[data-l="3"]{ background:color-mix(in srgb, var(--text) 68%, transparent); }
#activity-card .heat i[data-l="4"]{ background:var(--text); }
.hm{ font-family:var(--font-mono); font-size:.72rem; color:var(--text-muted); margin-top:14px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; }
.hm a{ color:var(--text); text-decoration:none; }
.hm a:hover{ text-decoration:underline; }

/* ---- Gallery ---- */
.gallery-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:16px; }
.gallery-item{ padding:0; overflow:hidden; }
.gallery-item img{ display:block; width:100%; aspect-ratio:1/1; object-fit:cover; transition:transform .5s var(--ease); }
.gallery-item:hover img{ transform:scale(1.04); }
.gallery-item figcaption{ font-family:var(--font-mono); font-size:.72rem; color:var(--text-muted); padding:12px 16px; }