/* ══════════════════════════════════════
   DESIGN TOKENS
══════════════════════════════════════ */
:root{
  --bg:       #090c10;
  --bg2:      #0d1117;
  --bg3:      #161b22;
  --bg4:      #1c2128;
  --border:   #21262d;
  --border2:  #30363d;
  --text:     #e6edf3;
  --muted:    #8b949e;
  --dim:      #484f58;
  --accent:   #58a6ff;
  --green:    #3fb950;
  --purple:   #d2a8ff;
  --orange:   #ffa657;
  --red:      #f78166;
  --teal:     #39d353;
  --glow-b:   rgba(88,166,255,.18);
  --glow-g:   rgba(63,185,80,.15);
  --glow-p:   rgba(210,168,255,.15);
  --r:        12px;
  --mono:     'JetBrains Mono','Fira Code',monospace;
  --ui:       'Sora','DM Sans',system-ui,sans-serif;
  --nav:      64px;
  --ease:     cubic-bezier(.4,0,.2,1);
}
[data-theme="light"]{
  --bg:      #f0f2f5;
  --bg2:     #f6f8fa;
  --bg3:     #ffffff;
  --bg4:     #eaeef2;
  --border:  #e1e4e8;
  --border2: #d0d7de;
  --text:    #1f2328;
  --muted:   #57606a;
  --dim:     #8c959f;
  --glow-b:  rgba(88,166,255,.10);
}

/* ══ RESET ══ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--ui);background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;transition:background .35s var(--ease),color .35s var(--ease)}
a{color:var(--accent);text-decoration:none}
ul{list-style:none}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:99px}
::selection{background:rgba(88,166,255,.25)}

/* ══ BACKGROUND ══ */
body::before{
  content:'';position:fixed;inset:0;
  background:
    radial-gradient(ellipse 90% 55% at 50% -10%,rgba(88,166,255,.06) 0%,transparent 65%),
    radial-gradient(ellipse 50% 40% at 90% 80%,rgba(210,168,255,.04) 0%,transparent 60%),
    linear-gradient(var(--border) 1px,transparent 1px),
    linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:auto,auto,52px 52px,52px 52px;
  opacity:.5;pointer-events:none;z-index:0
}
body>*{position:relative;z-index:1}

/* ══ UTILITY ══ */
.container{max-width:1100px;margin:0 auto;padding:0 28px}
.section{padding:100px 0}
.s-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent);background:rgba(88,166,255,.08);
  border:1px solid rgba(88,166,255,.2);
  padding:4px 14px;border-radius:99px;margin-bottom:12px
}
.s-title{font-size:clamp(1.7rem,4vw,2.3rem);font-weight:800;margin-bottom:52px;letter-spacing:-.02em}
.s-title span{color:var(--accent)}
.tag{
  display:inline-flex;align-items:center;gap:5px;
  font-family:var(--mono);font-size:.68rem;
  padding:3px 10px;border-radius:99px;
  border:1px solid var(--border2);color:var(--muted);background:var(--bg4)
}

/* ══ NAVBAR ══ */
nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav);
  background:rgba(9,12,16,.85);backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border);z-index:1000;
  transition:background .35s var(--ease)
}
[data-theme="light"] nav{background:rgba(240,242,245,.9)}
nav .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-logo{font-family:var(--mono);font-weight:700;font-size:1rem;color:var(--text);display:flex;align-items:center;gap:10px}
.logo-icon{
  width:34px;height:34px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:.85rem;color:#090c10;font-weight:900
}
.nav-logo .dot{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  font-size:.8rem;font-weight:500;color:var(--muted);
  padding:6px 11px;border-radius:7px;
  transition:color .2s,background .2s;
  display:flex;align-items:center;gap:6px
}
.nav-links a i{font-size:.7rem}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:var(--bg4)}
.nav-links a.active{color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  background:var(--bg4);border:1px solid var(--border2);color:var(--text);
  width:36px;height:36px;border-radius:8px;cursor:pointer;font-size:.85rem;
  display:flex;align-items:center;justify-content:center;transition:all .2s
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.hamburger{display:none}
.mobile-menu{
  display:none;position:fixed;top:var(--nav);left:0;right:0;
  background:var(--bg3);border-bottom:1px solid var(--border);
  padding:16px 24px;flex-direction:column;gap:4px;z-index:999
}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--muted);font-size:.9rem;padding:10px 14px;border-radius:8px;display:flex;align-items:center;gap:10px;transition:all .2s}
.mobile-menu a:hover{color:var(--accent);background:var(--bg4)}

/* ══ HERO ══ */
#hero{min-height:100vh;display:flex;align-items:center;padding-top:var(--nav)}
.hero-layout{display:grid;grid-template-columns:1fr 400px;gap:60px;align-items:center}
.hero-left{display:flex;flex-direction:column;gap:22px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--mono);font-size:.72rem;
  padding:5px 14px;border-radius:99px;border:1px solid;width:fit-content
}
.badge-green{color:var(--green);border-color:rgba(63,185,80,.3);background:rgba(63,185,80,.07)}
.badge-blue{color:var(--accent);border-color:rgba(88,166,255,.3);background:rgba(88,166,255,.07)}
.pulse{width:7px;height:7px;border-radius:50%;background:currentColor;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.65)}}
.hero-greeting{font-family:var(--mono);font-size:.95rem;color:var(--muted)}
.hero-greeting .hi{color:var(--orange)}
.hero-name{font-size:clamp(2.6rem,6vw,4rem);font-weight:900;line-height:1.05;letter-spacing:-.03em}
.nm{
  background:linear-gradient(135deg,var(--text) 0%,var(--accent) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}
.hero-sub{display:block;font-size:.42em;font-weight:400;color:var(--muted);letter-spacing:.01em;margin-top:8px;font-family:var(--ui)}
.hero-role{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:1rem;color:var(--accent)}
.prompt{color:var(--green)}
.cursor{display:inline-block;width:2px;height:1em;background:var(--accent);margin-left:2px;vertical-align:middle;animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-bio{max-width:520px;color:var(--muted);font-size:.97rem;line-height:1.8}
.hero-bio strong{color:var(--text)}
.hero-bio code{font-family:var(--mono);font-size:.82em;color:var(--purple);background:var(--bg4);padding:2px 7px;border-radius:5px;border:1px solid var(--border2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;font-weight:600;padding:10px 22px;border-radius:9px;border:1px solid transparent;cursor:pointer;font-family:var(--ui);transition:all .22s var(--ease)}
.btn-primary{background:var(--accent);color:#090c10;border-color:var(--accent)}
.btn-primary:hover{filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 10px 28px rgba(88,166,255,.3)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.hero-socials{display:flex;gap:10px}
.soc{
  width:40px;height:40px;border-radius:9px;
  border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:1rem;transition:all .22s
}
.soc:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);box-shadow:0 6px 18px rgba(88,166,255,.2)}

/* hero right */
.hero-right{display:flex;flex-direction:column;gap:14px}
.avatar-card{
  background:var(--bg3);border:1px solid var(--border2);border-radius:20px;
  padding:26px;display:flex;flex-direction:column;align-items:center;gap:14px;
  position:relative;overflow:hidden
}
.avatar-card::before{
  content:'';position:absolute;top:-50px;right:-50px;width:160px;height:160px;
  background:radial-gradient(circle,rgba(88,166,255,.1),transparent 70%);border-radius:50%
}
.avatar-ring{
  width:90px;height:90px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  display:flex;align-items:center;justify-content:center;
  font-size:2.2rem;font-weight:900;color:#090c10;font-family:var(--mono);
  box-shadow:0 0 0 4px var(--bg3),0 0 0 7px rgba(88,166,255,.25)
}
.avatar-name{font-weight:700;font-size:1.15rem;color:var(--text)}
.avatar-role{font-family:var(--mono);font-size:.72rem;color:var(--accent);display:flex;align-items:center;gap:6px}
.avatar-loc{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--muted)}
.avatar-loc i{color:var(--red)}
.avatar-chips{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}

.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.stat-box{
  background:var(--bg3);border:1px solid var(--border);border-radius:12px;
  padding:14px;text-align:center;transition:border-color .2s
}
.stat-box:hover{border-color:var(--accent)}
.stat-val{font-family:var(--mono);font-size:1.25rem;font-weight:700;color:var(--accent);display:block}
.stat-lbl{font-size:.7rem;color:var(--muted)}

.code-card{background:var(--bg3);border:1px solid var(--border2);border-radius:16px;overflow:hidden}
.code-bar{display:flex;align-items:center;gap:7px;padding:10px 16px;background:var(--bg4);border-bottom:1px solid var(--border)}
.dot-r{width:10px;height:10px;border-radius:50%;background:#f78166}
.dot-y{width:10px;height:10px;border-radius:50%;background:#ffa657}
.dot-g{width:10px;height:10px;border-radius:50%;background:#3fb950}
.code-bar span{font-family:var(--mono);font-size:.7rem;color:var(--muted);margin-left:4px}
.code-body{padding:16px 20px;font-family:var(--mono);font-size:.77rem;line-height:2}
.cl{color:var(--muted)}.ck{color:var(--purple)}.cs{color:var(--green)}.cv{color:var(--orange)}.cn{color:var(--accent)}.cb{color:var(--red)}

/* ══ ABOUT ══ */
#about{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.about-grid{display:grid;grid-template-columns:1fr 370px;gap:48px;align-items:start}
.about-text p{color:var(--muted);margin-bottom:16px;font-size:.97rem}
.about-text p strong{color:var(--text)}
.highlight{
  display:flex;align-items:flex-start;gap:12px;
  background:var(--bg3);border:1px solid var(--border2);border-left:3px solid var(--accent);
  border-radius:10px;padding:14px 16px;margin-top:8px;font-size:.88rem;color:var(--muted)
}
.highlight i{color:var(--accent);margin-top:3px;flex-shrink:0}
.info-cards{display:flex;flex-direction:column;gap:10px}
.info-card{
  display:flex;align-items:center;gap:14px;
  background:var(--bg3);border:1px solid var(--border);border-radius:10px;
  padding:12px 16px;transition:border-color .2s,transform .2s
}
.info-card:hover{border-color:var(--accent);transform:translateX(4px)}
.info-icon{width:36px;height:36px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.95rem}
.ii-blue{background:rgba(88,166,255,.12);color:var(--accent)}
.ii-green{background:rgba(63,185,80,.12);color:var(--green)}
.ii-purple{background:rgba(210,168,255,.12);color:var(--purple)}
.ii-orange{background:rgba(255,166,87,.12);color:var(--orange)}
.ii-red{background:rgba(247,129,102,.12);color:var(--red)}
.info-card div small{display:block;font-family:var(--mono);font-size:.63rem;color:var(--dim);text-transform:uppercase;letter-spacing:.07em}
.info-card div strong{color:var(--text);font-size:.87rem}

/* ══ TIMELINE ══ */
.timeline{display:flex;flex-direction:column;gap:0}
.tl-wrap{display:grid;grid-template-columns:56px 1fr;gap:0 20px;position:relative}
.tl-wrap:not(:last-child) .tl-spine::after{content:'';position:absolute;left:27px;top:57px;bottom:0;width:2px;background:linear-gradient(to bottom,var(--border2),transparent)}
.tl-spine{position:relative}
.tl-ico{
  width:56px;height:56px;border-radius:14px;z-index:1;position:relative;
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;
  border:1px solid var(--border2);background:var(--bg3)
}
.tl-body{
  background:var(--bg3);border:1px solid var(--border);border-radius:14px;
  padding:20px 22px;margin-bottom:20px;transition:border-color .2s,box-shadow .2s
}
.tl-body:hover{border-color:var(--accent);box-shadow:0 0 0 1px rgba(88,166,255,.08)}
.tl-date{font-family:var(--mono);font-size:.7rem;color:var(--green);margin-bottom:4px;display:flex;align-items:center;gap:6px}
.tl-ttl{font-weight:700;font-size:1rem;color:var(--text);margin-bottom:3px}
.tl-org{font-size:.84rem;color:var(--accent);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.tl-txt{color:var(--muted);font-size:.875rem;line-height:1.7}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.chip{display:inline-flex;align-items:center;gap:5px;font-family:var(--mono);font-size:.67rem;padding:3px 10px;border-radius:99px;background:var(--bg4);border:1px solid var(--border2);color:var(--muted)}

/* ══ PROJECTS ══ */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:20px}
.proj{
  background:var(--bg3);border:1px solid var(--border);border-radius:16px;
  padding:24px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .25s,transform .25s,box-shadow .25s;position:relative;overflow:hidden
}
.proj::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--purple));opacity:0;transition:opacity .25s}
.proj:hover{border-color:var(--accent);transform:translateY(-5px);box-shadow:0 20px 48px rgba(0,0,0,.35)}
.proj:hover::after{opacity:1}
.proj-hd{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.proj-ico{width:48px;height:48px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:1.35rem;border:1px solid var(--border2)}
.pi-blue{background:rgba(88,166,255,.1);color:var(--accent)}
.pi-green{background:rgba(63,185,80,.1);color:var(--green)}
.pi-purple{background:rgba(210,168,255,.1);color:var(--purple)}
.proj-acts{display:flex;gap:7px}
.proj-acts a{width:30px;height:30px;border-radius:7px;border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.78rem;transition:all .2s}
.proj-acts a:hover{border-color:var(--accent);color:var(--accent)}
.proj-name{font-weight:700;font-size:1.05rem;color:var(--text)}
.proj-sub{font-family:var(--mono);font-size:.67rem;color:var(--muted);margin-top:-4px}
.proj-desc{color:var(--muted);font-size:.875rem;line-height:1.7;flex:1}
.proj-footer{display:flex;align-items:center;gap:8px;padding-top:10px;border-top:1px solid var(--border);font-size:.72rem;color:var(--dim);font-family:var(--mono)}
.proj-footer i{color:var(--green)}

/* ══ SKILLS ══ */
#skills{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.skill-sections{display:flex;flex-direction:column;gap:44px}
.skill-hd{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.skill-hd-icon{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:.95rem}
.skill-hd-label{font-weight:700;font-size:1rem;color:var(--text)}
.skill-hd-line{flex:1;height:1px;background:var(--border)}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:12px}
.sk{
  background:var(--bg3);border:1px solid var(--border);border-radius:12px;
  padding:18px 12px;display:flex;flex-direction:column;align-items:center;gap:9px;
  text-align:center;cursor:default;transition:all .22s;position:relative;overflow:hidden
}
.sk::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,var(--glow-b),transparent 70%);opacity:0;transition:opacity .3s}
.sk:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 12px 32px rgba(0,0,0,.3)}
.sk:hover::before{opacity:1}
.sk i{font-size:1.7rem;position:relative}
.sk-name{font-size:.76rem;font-weight:600;color:var(--text);position:relative}
.sk-lv{font-family:var(--mono);font-size:.61rem;padding:2px 8px;border-radius:99px;position:relative}
.lv-pro{color:var(--green);background:rgba(63,185,80,.1);border:1px solid rgba(63,185,80,.25)}
.lv-int{color:var(--accent);background:rgba(88,166,255,.1);border:1px solid rgba(88,166,255,.25)}
.lv-beg{color:var(--orange);background:rgba(255,166,87,.1);border:1px solid rgba(255,166,87,.25)}
/* icon colours */
.ic-js{color:#f7df1e}.ic-node{color:#68a063}.ic-react{color:#61dafb}
.ic-mongo{color:#4db33d}.ic-redis{color:#d82c20}.ic-pg{color:#336791}
.ic-prisma{color:#5a67d8}.ic-expr{color:#8b949e}.ic-jwt{color:var(--purple)}
.ic-git{color:#f05032}.ic-docker{color:#2496ed}.ic-linux{color:#fcc624}
.ic-html{color:#e34f26}.ic-css{color:#264de4}.ic-py{color:#3776ab}
.ic-cn{color:var(--teal)}.ic-dbms{color:var(--orange)}.ic-oops{color:var(--purple)}

/* ══ CONTACT ══ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.c-cards{display:flex;flex-direction:column;gap:12px}
.c-card{display:flex;align-items:center;gap:16px;background:var(--bg3);border:1px solid var(--border);border-radius:12px;padding:15px 20px;transition:border-color .2s,transform .2s}
.c-card:hover{border-color:var(--accent);transform:translateX(4px)}
.c-ico{width:42px;height:42px;border-radius:10px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:1.05rem}
.c-card div small{display:block;font-family:var(--mono);font-size:.63rem;color:var(--dim);text-transform:uppercase;letter-spacing:.07em;margin-bottom:2px}
.c-card div a,.c-card div span{color:var(--text);font-size:.87rem}
.c-form{display:flex;flex-direction:column;gap:14px}
.fg{display:flex;flex-direction:column;gap:6px}
.fg label{font-family:var(--mono);font-size:.7rem;color:var(--muted);display:flex;align-items:center;gap:7px}
.fg label i{color:var(--accent)}
.fg input,.fg textarea{background:var(--bg3);border:1px solid var(--border2);border-radius:9px;padding:11px 15px;color:var(--text);font-family:var(--ui);font-size:.9rem;outline:none;transition:border-color .2s,box-shadow .2s;resize:vertical}
.fg input:focus,.fg textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--glow-b)}
.fg textarea{min-height:120px}
#fm{font-size:.8rem;font-family:var(--mono);display:none;padding:8px 12px;border-radius:7px;align-items:center;gap:8px}
#fm.ok{color:var(--green);background:rgba(63,185,80,.08);border:1px solid rgba(63,185,80,.25);display:flex}
#fm.err{color:var(--red);background:rgba(247,129,102,.08);border:1px solid rgba(247,129,102,.25);display:flex}

/* ══ FOOTER ══ */
footer{padding:36px 0;border-top:1px solid var(--border);text-align:center}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:16px}
.footer-logo{font-family:var(--mono);font-size:.9rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.footer-logo .fl-dot{color:var(--accent)}
.footer-soc{display:flex;gap:10px}
.footer-soc a{width:34px;height:34px;border-radius:8px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.85rem;transition:all .2s}
.footer-soc a:hover{border-color:var(--accent);color:var(--accent)}
.footer-copy{font-family:var(--mono);font-size:.7rem;color:var(--dim)}
.footer-copy span{color:var(--red)}

/* ══ SCROLL REVEAL ══ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.sl{transform:translateX(-30px)}
.reveal.sr{transform:translateX(30px)}
.reveal.vis{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}

/* ══ RESPONSIVE ══ */
@media(max-width:900px){
  .hero-layout,.about-grid,.contact-grid{grid-template-columns:1fr}
  .hero-right{display:none}
}
@media(max-width:768px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .section{padding:64px 0}
}
@media(max-width:480px){
  .projects-grid{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:repeat(3,1fr)}
  .stat-row{grid-template-columns:repeat(2,1fr)}
}