/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --void:#060a1a;
  --deep:#0c1228;
  --card:#0f1526;
  --card-hover:#131b33;
  --glass:rgba(255,255,255,.03);
  --border:rgba(140,170,220,.14);
  --border-hover:rgba(0,229,255,.4);

  --cyan:#00e5ff;
  --violet:#9d4edd;
  --green:#39ff14;

  --ink-1:#eef2fb;
  --ink-2:#93a1bd;
  --ink-3:#4d5a76;

  --sidebar-w:236px;

  --f-head:'Space Grotesk',sans-serif;
  --f-body:'DM Sans',sans-serif;
  --f-code:'Fira Code',monospace;

  --ease:cubic-bezier(.16,.84,.44,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:auto;}
body{
  background:radial-gradient(ellipse 120% 80% at 20% 0%, var(--deep), var(--void) 60%);
  color:var(--ink-1);
  font-family:var(--f-body);
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:'';
  position:fixed; inset:0;
  background-image:
    linear-gradient(rgba(0,229,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,.035) 1px, transparent 1px);
  background-size:42px 42px;
  pointer-events:none;
  z-index:0;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 80%);
}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea{font:inherit;}
::selection{background:var(--cyan);color:var(--void);}

h1,h2,h3,h4{font-family:var(--f-head);font-weight:600;letter-spacing:-.01em;}
.mono{font-family:var(--f-code);}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}

/* ============================================================
   PRELOADER
   ============================================================ */
#preloader{
  position:fixed;inset:0;z-index:9999;
  background:var(--void);
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:18px;
  transition:opacity .5s var(--ease), visibility .5s var(--ease);
}
#preloader.done{opacity:0;visibility:hidden;pointer-events:none;}
#preloader svg{width:64px;height:64px;}
#preloader .helix-strand{transform-origin:32px 32px;}
#preloader .pre-label{font-family:var(--f-code);font-size:.72rem;letter-spacing:.08em;color:var(--ink-3);}

/* ============================================================
   MAGNETIC CURSOR
   ============================================================ */
.cursor-dot,.cursor-ring{
  position:fixed;top:0;left:0;pointer-events:none;z-index:9000;
  border-radius:50%;transform:translate(-50%,-50%);
}
.cursor-dot{width:6px;height:6px;background:var(--cyan);}
.cursor-ring{width:32px;height:32px;border:1px solid var(--border-hover);transition:width .25s var(--ease),height .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);}
.cursor-ring.active{width:52px;height:52px;background:rgba(0,229,255,.08);border-color:var(--cyan);}
@media (hover:none), (pointer:coarse){ .cursor-dot,.cursor-ring{display:none;} }

/* ============================================================
   LAYOUT SHELL
   ============================================================ */
.app{display:flex;min-height:100vh;position:relative;z-index:1;}

/* Sidebar */
.sidebar{
  width:var(--sidebar-w);flex-shrink:0;
  position:fixed;top:0;left:0;height:100vh;
  background:rgba(9,13,26,.7);
  backdrop-filter:blur(18px);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  padding:28px 18px;
  z-index:100;
  transition:transform .4s var(--ease);
}
.brand{display:flex;align-items:center;gap:11px;padding:0 6px 26px;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-head);font-weight:700;color:var(--void);font-size:.95rem;
  flex-shrink:0;
}
.brand-text{line-height:1.15;}
.brand-text strong{display:block;font-family:var(--f-head);font-size:.95rem;}
.brand-text span{display:block;font-size:.68rem;color:var(--ink-3);}

.nav-list{display:flex;flex-direction:column;gap:4px;position:relative;flex:1;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:10px;
  color:var(--ink-2);font-size:.88rem;font-weight:500;
  z-index:1;transition:color .25s;
}
.nav-item i{width:18px;text-align:center;font-size:.9rem;}
.nav-item:hover{color:var(--ink-1);}
.nav-item[aria-current="page"]{color:var(--void);}
.nav-glow{
  position:absolute;left:0;top:0;width:100%;height:0;
  background:linear-gradient(90deg,var(--cyan),#33e0ff);
  border-radius:10px;z-index:0;
  box-shadow:0 0 20px rgba(0,229,255,.45);
}

.sidebar-foot{padding-top:16px;border-top:1px solid var(--border);display:flex;gap:10px;}
.foot-link{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
  transition:border-color .25s,color .25s,transform .25s;
}
.foot-link:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px);}

.sidebar-toggle{
  display:none;position:fixed;top:18px;left:18px;z-index:120;
  width:42px;height:42px;border-radius:10px;
  background:rgba(15,21,38,.85);border:1px solid var(--border);
  align-items:center;justify-content:center;color:var(--ink-1);
  backdrop-filter:blur(10px);
}
.sidebar-overlay{
  display:none;position:fixed;inset:0;background:rgba(2,4,10,.6);z-index:99;
  opacity:0;transition:opacity .3s;
}
.sidebar-overlay.show{display:block;opacity:1;}

/* Main content */
.main{
  margin-left:var(--sidebar-w);
  flex:1;min-height:100vh;position:relative;
  padding:56px 60px 90px;
}
.panel{display:none;}
.panel.active{display:block;}

.eyebrow-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--f-code);font-size:.74rem;color:var(--cyan);
  background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.22);
  padding:5px 12px;border-radius:100px;margin-bottom:18px;
}
.eyebrow-tag i{font-size:.7rem;}

.section-head{max-width:640px;margin-bottom:38px;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:10px;}
.section-head p{color:var(--ink-2);font-size:1rem;line-height:1.6;}

/* Glass card base */
.glass-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:26px;
  overflow:hidden;
  transition:border-color .3s,transform .3s,box-shadow .3s;
}
.glass-card::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(220px circle at var(--mx,50%) var(--my,50%), rgba(0,229,255,.08), transparent 60%);
  opacity:0;transition:opacity .3s;
}
.glass-card:hover::after{opacity:1;}
.glass-card:hover{border-color:var(--border-hover);}

/* ============================================================
   HOME
   ============================================================ */
.hero{
  display:grid;grid-template-columns:1fr 260px;gap:56px;
  align-items:center;padding:20px 0 64px;
  border-bottom:1px solid var(--border);
}
.hero-eyebrow{font-family:var(--f-code);color:var(--green);font-size:.82rem;display:flex;align-items:center;gap:8px;margin-bottom:22px;}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);}
.hero h1{font-size:clamp(2.4rem,5vw,4rem);line-height:1.05;margin-bottom:16px;}
.hero h1 .letter{display:inline-block;}
.typed-role{
  font-family:var(--f-code);font-size:clamp(1rem,1.6vw,1.25rem);color:var(--cyan);
  min-height:1.6em;margin-bottom:20px;
}
.typed-cursor{color:var(--violet);}
.hero-bio{color:var(--ink-2);font-size:1.02rem;line-height:1.65;max-width:520px;margin-bottom:32px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}

.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:10px;font-weight:600;font-size:.92rem;
  transition:transform .25s,box-shadow .25s;
}
.btn-primary{background:linear-gradient(135deg,var(--cyan),#20c9ea);color:#03131a;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,229,255,.25);}
.btn-ghost{border:1px solid var(--border);color:var(--ink-1);}
.btn-ghost:hover{border-color:var(--border-hover);transform:translateY(-2px);}
.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.5);transform:scale(0);animation:rip .6s ease-out;pointer-events:none;}
@keyframes rip{to{transform:scale(3.5);opacity:0;}}

.portrait-wrap{
  position:relative;width:230px;height:230px;justify-self:center;
}
.portrait-ring{
  position:absolute;inset:-10px;border-radius:26px;
  background:conic-gradient(from 0deg,var(--cyan),var(--violet),var(--green),var(--cyan));
  filter:blur(18px);opacity:.55;
  animation:pulseGlow 3.4s ease-in-out infinite;
}
@keyframes pulseGlow{0%,100%{opacity:.4;transform:scale(1);}50%{opacity:.7;transform:scale(1.04);}}
.portrait{
  position:relative;width:100%;height:100%;border-radius:22px;
  border:1px solid var(--border-hover);
  background:linear-gradient(145deg,var(--card),var(--deep));
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.portrait img{width:100%;height:100%;object-fit:cover;display:block;}
.portrait .fallback{
  font-family:var(--f-head);font-size:3.2rem;font-weight:700;
  color:var(--cyan);letter-spacing:.02em;
}

.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:52px 0;}
.stat-card{text-align:left;}
.stat-num{
  font-family:var(--f-head);font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:700;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;
}
.stat-label{color:var(--ink-2);font-size:.85rem;margin-top:8px;}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:44px;}
.about-bio p{color:var(--ink-2);line-height:1.75;margin-bottom:16px;font-size:1rem;}
.about-bio p strong{color:var(--ink-1);font-weight:600;}

.timeline{position:relative;margin-top:10px;padding-left:26px;}
.timeline::before{content:'';position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--cyan),var(--violet));}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:'';position:absolute;left:-26px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--void);border:2px solid var(--cyan);}
.tl-item h4{font-size:.98rem;margin-bottom:3px;}
.tl-item span{color:var(--ink-3);font-size:.8rem;font-family:var(--f-code);}

.contact-list{display:flex;flex-direction:column;gap:12px;margin-top:6px;}
.contact-list li{display:flex;align-items:center;gap:12px;color:var(--ink-2);font-size:.92rem;}
.contact-list i{width:32px;height:32px;border-radius:9px;background:rgba(0,229,255,.08);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--cyan);flex-shrink:0;}

.chip-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px;}
.chip{
  padding:7px 14px;border-radius:100px;font-size:.8rem;
  border:1px solid var(--border);color:var(--ink-2);
  transition:border-color .25s,color .25s;
}
.chip:hover{border-color:var(--border-hover);color:var(--cyan);}

.side-block{margin-bottom:34px;}
.side-block h3{font-size:1.05rem;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.side-block h3 i{color:var(--violet);font-size:.9rem;}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.exp-timeline{position:relative;padding-left:36px;}
.exp-timeline::before{content:'';position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--cyan),var(--violet),var(--green));}
.exp-item{position:relative;margin-bottom:36px;}
.exp-item:last-child{margin-bottom:0;}
.exp-dot{
  position:absolute;left:-36px;top:6px;width:20px;height:20px;border-radius:50%;
  background:var(--void);border:2px solid var(--cyan);
  display:flex;align-items:center;justify-content:center;
}
.exp-dot i{font-size:.6rem;color:var(--cyan);}
.exp-card{padding:24px 26px;}
.exp-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:12px;}
.exp-org{font-size:1.12rem;font-family:var(--f-head);font-weight:600;}
.exp-role{color:var(--cyan);font-size:.86rem;margin-top:2px;}
.exp-dates{font-family:var(--f-code);font-size:.78rem;color:var(--ink-3);white-space:nowrap;}
.exp-bullets{margin:14px 0 16px;padding-left:18px;color:var(--ink-2);font-size:.92rem;line-height:1.7;}
.exp-bullets li{margin-bottom:5px;list-style:disc;}
.exp-sup{font-size:.82rem;color:var(--ink-3);margin-bottom:14px;}
.exp-sup strong{color:var(--ink-2);font-weight:500;}

/* ============================================================
   PROJECTS
   ============================================================ */
.proj-controls{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:30px;}
.filter-row{display:flex;gap:8px;flex-wrap:wrap;}
.filter-btn{
  padding:9px 17px;border-radius:100px;font-size:.83rem;font-weight:500;
  border:1px solid var(--border);color:var(--ink-2);transition:.25s;
}
.filter-btn.active,.filter-btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,229,255,.06);}
.search-box{
  position:relative;min-width:220px;
}
.search-box input{
  width:100%;padding:10px 16px 10px 38px;border-radius:100px;
  background:var(--card);border:1px solid var(--border);color:var(--ink-1);font-size:.86rem;
}
.search-box input:focus{border-color:var(--border-hover);}
.search-box i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:.82rem;}

.proj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;}
.proj-card-outer{perspective:1400px;height:250px;}
.proj-card-outer.hidden{display:none;}
.proj-card-inner{
  position:relative;width:100%;height:100%;
  transform-style:preserve-3d;cursor:pointer;
}
.proj-face{
  position:absolute;inset:0;backface-visibility:hidden;
  border-radius:16px;border:1px solid var(--border);
  padding:24px;display:flex;flex-direction:column;
}
.proj-front{background:var(--card);}
.proj-back{background:linear-gradient(160deg,var(--card),#0c1730);transform:rotateY(180deg);justify-content:center;}
.proj-tag{
  align-self:flex-start;font-family:var(--f-code);font-size:.68rem;padding:4px 10px;
  border-radius:100px;background:rgba(157,78,221,.12);color:var(--violet);border:1px solid rgba(157,78,221,.3);
  margin-bottom:14px;
}
.proj-front h4{font-size:1.08rem;margin-bottom:10px;line-height:1.3;}
.proj-front p{color:var(--ink-2);font-size:.86rem;line-height:1.55;flex:1;}
.proj-hint{font-size:.72rem;color:var(--ink-3);font-family:var(--f-code);display:flex;align-items:center;gap:6px;margin-top:10px;}
.proj-back p{color:var(--ink-2);font-size:.87rem;line-height:1.65;}
.proj-back .proj-tags-mini{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.proj-status{font-size:.7rem;font-family:var(--f-code);color:var(--green);margin-top:12px;}
.no-results{color:var(--ink-3);grid-column:1/-1;text-align:center;padding:40px 0;font-size:.92rem;}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:44px;align-items:start;}
.skill-group{margin-bottom:30px;}
.skill-group:last-child{margin-bottom:0;}
.skill-group h3{font-size:1rem;margin-bottom:16px;color:var(--ink-1);}
.skill-row{margin-bottom:14px;}
.skill-row:last-child{margin-bottom:0;}
.skill-top{display:flex;justify-content:space-between;font-size:.85rem;margin-bottom:6px;color:var(--ink-2);}
.skill-track{height:7px;border-radius:100px;background:rgba(255,255,255,.06);overflow:hidden;}
.skill-fill{
  height:100%;border-radius:100px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}
.radar-card{position:sticky;top:56px;}
.radar-card canvas{max-height:340px;}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:.84rem;color:var(--ink-2);margin-bottom:8px;}
.form-row input,.form-row textarea{
  width:100%;padding:13px 16px;border-radius:10px;
  background:var(--deep);border:1px solid var(--border);color:var(--ink-1);
  transition:border-color .25s;
}
.form-row input:focus,.form-row textarea:focus{border-color:var(--cyan);}
.form-row textarea{resize:vertical;min-height:120px;}
.field-error{color:#ff6b6b;font-size:.76rem;margin-top:6px;min-height:1em;}
.form-row.error input,.form-row.error textarea{border-color:#ff6b6b;}
.form-status{margin-top:16px;font-size:.88rem;padding:12px 16px;border-radius:10px;display:none;}
.form-status.success{display:block;background:rgba(57,255,20,.08);border:1px solid rgba(57,255,20,.3);color:var(--green);}
.form-status.failure{display:block;background:rgba(255,107,107,.08);border:1px solid rgba(255,107,107,.3);color:#ff6b6b;}

.contact-side .side-block{margin-bottom:0;}
.social-row{display:flex;gap:12px;margin-top:16px;}
.social-btn{
  display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:10px;
  border:1px solid var(--border);font-size:.87rem;flex:1;justify-content:center;
  transition:.25s;
}
.social-btn:hover{border-color:var(--border-hover);color:var(--cyan);transform:translateY(-2px);}

/* footer note */
.footer-note{margin-top:70px;padding-top:22px;border-top:1px solid var(--border);color:var(--ink-3);font-size:.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}

/* Confetti canvas */
#confetti-canvas{position:fixed;inset:0;pointer-events:none;z-index:8000;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .hero{grid-template-columns:1fr;}
  .portrait-wrap{justify-self:start;}
  .about-grid,.skills-layout,.contact-layout{grid-template-columns:1fr;}
  .radar-card{position:static;}
}
@media (max-width:820px){
  .sidebar{transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);}
  .sidebar-toggle{display:flex;}
  .main{margin-left:0;padding:88px 24px 70px;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr 1fr;gap:14px;}
  .hero-ctas{flex-direction:column;}
  .btn{width:100%;justify-content:center;}
}

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