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

:root{
  --navy-deep:#081820;
  --navy:#0c2430;
  --navy-panel:#0f2c3a;
  --grid-line:#173d4d;
  --cyan:#4fd8e8;
  --cyan-dim:#2a8a97;
  --amber:#f2a65a;
  --paper:#eef6f8;
  --slate:#7f9caa;
  --slate-dim:#4d6874;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--navy-deep);
  color:var(--paper);
  font-family:'IBM Plex Sans',sans-serif;
  overflow-x:hidden;
  position:relative;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
}
.mono{font-family:'JetBrains Mono',monospace;}

/* blueprint grid background */
.grid-bg{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:44px 44px;
  opacity:0.35;
}
.grid-bg::after{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(ellipse at 50% 0%, rgba(79,216,232,0.08), transparent 60%);
}

.viewport-frame{position:fixed; inset:14px; z-index:5; pointer-events:none;}
.corner{position:absolute; width:22px; height:22px; border-color:var(--cyan-dim);}
.corner.tl{top:0;left:0;border-top:2px solid;border-left:2px solid;}
.corner.tr{top:0;right:0;border-top:2px solid;border-right:2px solid;}
.corner.bl{bottom:0;left:0;border-bottom:2px solid;border-left:2px solid;}
.corner.br{bottom:0;right:0;border-bottom:2px solid;border-right:2px solid;}

.label-tag{
  position:fixed; z-index:6; font-family:'JetBrains Mono',monospace;
  font-size:10px; letter-spacing:0.12em; color:var(--slate-dim); text-transform:uppercase;
}
.tag-top-left{top:22px;left:44px;}
.tag-bottom-right{bottom:22px;right:44px;}
@media (max-width:640px){ .label-tag{display:none;} }

/* ===== NAV ===== */
.navbar{
  position:sticky; top:0; z-index:20;
  display:flex; align-items:center; justify-content:space-between;
  padding:22px 44px; background:rgba(8,24,32,0.86); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--grid-line);
}
.nav-logo{font-family:'JetBrains Mono',monospace; font-weight:700; font-size:14px; color:var(--paper); text-decoration:none; letter-spacing:0.04em;}
.nav-logo .accent{color:var(--cyan);}
.nav-links{display:flex; gap:34px; list-style:none;}
.nav-links a{
  font-family:'JetBrains Mono',monospace; font-size:12px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--slate); text-decoration:none; position:relative; padding-bottom:4px; transition:color 0.2s ease;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px; background:var(--cyan); transition:width 0.25s ease;
}
.nav-links a:hover{color:var(--paper);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--cyan);}
.nav-links a.active::after{width:100%;}
.nav-toggle{display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px;}
.nav-toggle span{width:22px; height:2px; background:var(--paper);}
@media (max-width:760px){
  .navbar{padding:18px 24px;}
  .nav-links{
    position:fixed; top:64px; left:0; right:0; flex-direction:column; gap:0;
    background:var(--navy-deep); border-bottom:1px solid var(--grid-line);
    max-height:0; overflow:hidden; transition:max-height 0.35s ease;
  }
  .nav-links.open{max-height:340px;}
  .nav-links a{padding:16px 24px; width:100%; display:block; border-top:1px solid var(--grid-line);}
  .nav-toggle{display:flex;}
}

section, .page-wrap{position:relative; z-index:1; max-width:920px; margin:0 auto; padding:80px 32px 40px;}

.eyebrow{
  display:flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono',monospace; font-size:12px; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--cyan); margin-bottom:18px;
}
.eyebrow::before{content:""; width:26px; height:1px; background:var(--cyan);}
h1,h2,h3{font-family:'JetBrains Mono',monospace; font-weight:700; line-height:1.15;}
.page-title{font-size:clamp(2rem,6vw,3.4rem); color:var(--paper); margin-bottom:14px;}
.page-sub{color:var(--slate); font-size:15px; max-width:600px; line-height:1.7; margin-bottom:56px;}
.section-title{font-size:clamp(1.6rem,4vw,2.3rem); color:var(--paper); margin-bottom:8px;}
.section-sub{color:var(--slate); font-size:14px; margin-bottom:52px; max-width:560px; line-height:1.6;}

.reveal{opacity:0; transform:translateY(24px); transition:opacity 0.7s ease, transform 0.7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

.btn{
  font-family:'JetBrains Mono',monospace; font-size:12.5px; letter-spacing:0.06em;
  padding:12px 20px; border:1px solid var(--cyan-dim); color:var(--cyan);
  text-decoration:none; transition:all 0.25s ease; display:inline-block;
}
.btn:hover{background:rgba(79,216,232,0.1); border-color:var(--cyan); transform:translateY(-2px);}
.btn.solid{background:var(--cyan); color:var(--navy-deep); border-color:var(--cyan); font-weight:700;}
.btn.solid:hover{background:var(--paper); border-color:var(--paper);}

/* ===== HERO (home) ===== */
.hero{min-height:78vh; display:flex; flex-direction:column; justify-content:center; padding-top:40px; padding-bottom:40px;}
.hero-id{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--slate); letter-spacing:0.1em; margin-bottom:26px; opacity:0; animation:fadeUp 0.7s ease forwards; animation-delay:0.1s;}
.hero h1{font-size:clamp(2.4rem, 7vw, 5rem); color:var(--paper); letter-spacing:-0.01em; opacity:0; animation:fadeUp 0.8s ease forwards; animation-delay:0.25s;}
.hero h1 .accent{color:var(--cyan);}
.hero-role{margin-top:22px; font-size:clamp(1rem,2.4vw,1.35rem); color:var(--slate); font-weight:400; max-width:620px; line-height:1.6; opacity:0; animation:fadeUp 0.8s ease forwards; animation-delay:0.45s;}
.hero-role strong{color:var(--paper); font-weight:600;}
.typed-line{margin-top:34px; font-family:'JetBrains Mono',monospace; font-size:14px; color:var(--amber); display:flex; align-items:center; gap:2px; opacity:0; animation:fadeUp 0.8s ease forwards; animation-delay:0.65s;}
.typed-cursor{display:inline-block; width:8px; height:16px; background:var(--amber); margin-left:4px; animation:blink 1s step-end infinite;}
@keyframes blink{50%{opacity:0;}}
@keyframes fadeUp{from{opacity:0; transform:translateY(18px);} to{opacity:1; transform:translateY(0);}}
.hero-links{margin-top:44px; display:flex; gap:14px; flex-wrap:wrap; opacity:0; animation:fadeUp 0.8s ease forwards; animation-delay:0.85s;}

.stat-row{display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:2px; border:1px solid var(--grid-line); margin-top:20px;}
.stat-cell{background:var(--navy-panel); padding:22px 20px; border:1px solid var(--grid-line);}
.stat-num{font-family:'JetBrains Mono',monospace; font-size:26px; color:var(--cyan); font-weight:700;}
.stat-label{font-family:'JetBrains Mono',monospace; font-size:10.5px; color:var(--slate); letter-spacing:0.08em; text-transform:uppercase; margin-top:6px;}

.about-text{font-size:16px; line-height:1.85; color:#c9dbe1; max-width:680px;}
.about-text strong{color:var(--paper);}

/* ===== SKILLS ===== */
.skill-cat{margin-bottom:52px;}
.skill-cat-head{display:flex; align-items:baseline; gap:12px; margin-bottom:22px;}
.skill-cat-num{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--cyan-dim);}
.skill-cat h3{font-size:14px; color:var(--paper); letter-spacing:0.06em;}
.skill-bars{display:flex; flex-direction:column; gap:20px;}
.skill-bar-row{display:flex; flex-direction:column; gap:8px;}
.skill-bar-top{display:flex; justify-content:space-between; align-items:baseline;}
.skill-name{font-size:14.5px; color:var(--paper); font-weight:500;}
.skill-level-label{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--cyan-dim);}
.skill-bar-track{height:6px; background:var(--navy-panel); border:1px solid var(--grid-line); position:relative; overflow:hidden;}
.skill-bar-fill{
  height:100%; width:0%; background:linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  transition:width 1.1s cubic-bezier(.2,.8,.2,1);
}
.skill-legend{display:flex; gap:24px; flex-wrap:wrap; margin-top:8px; margin-bottom:44px; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--slate);}
.skill-legend span{display:flex; align-items:center; gap:7px;}
.legend-dot{width:8px; height:8px; border-radius:50%; display:inline-block;}

/* ===== EXPERIENCE — schematic trace ===== */
.exp-track{position:relative; padding-left:36px;}
.exp-track::before{content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background:linear-gradient(var(--cyan-dim), var(--grid-line));}
.exp-node{position:relative; padding-bottom:52px;}
.exp-node:last-child{padding-bottom:0;}
.exp-dot{position:absolute; left:-36px; top:4px; width:11px; height:11px; border-radius:50%; background:var(--navy-deep); border:2px solid var(--cyan-dim); transition:all 0.3s ease;}
.exp-node.in .exp-dot{border-color:var(--cyan); box-shadow:0 0 0 4px rgba(79,216,232,0.12);}
.exp-date{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--amber); letter-spacing:0.06em; margin-bottom:6px;}
.exp-role{font-size:18px; color:var(--paper); font-weight:700; font-family:'JetBrains Mono',monospace;}
.exp-co{font-size:13.5px; color:var(--slate); margin-top:2px; margin-bottom:14px;}
.exp-node ul{list-style:none; display:flex; flex-direction:column; gap:9px;}
.exp-node li{font-size:14.5px; color:#c2d6dd; line-height:1.6; padding-left:16px; position:relative;}
.exp-node li::before{content:"→"; position:absolute; left:0; color:var(--cyan-dim); font-family:'JetBrains Mono',monospace;}
.stack-tags{margin-top:12px; display:flex; gap:6px; flex-wrap:wrap;}
.stack-tags span{font-family:'JetBrains Mono',monospace; font-size:10.5px; color:var(--cyan-dim); border:1px solid var(--grid-line); padding:3px 8px;}

/* ===== PROJECTS ===== */
.proj-grid{display:flex; flex-direction:column; gap:1px; background:var(--grid-line); border:1px solid var(--grid-line);}
.proj-card{background:var(--navy-deep); padding:30px 28px; position:relative; transition:background 0.3s ease;}
.proj-card:hover{background:var(--navy);}
.proj-head{display:flex; justify-content:space-between; align-items:baseline; gap:16px; flex-wrap:wrap;}
.proj-title{font-family:'JetBrains Mono',monospace; font-size:16px; color:var(--paper); font-weight:700;}
.proj-idx{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--cyan-dim);}
.proj-card ul{margin-top:14px; list-style:none; display:flex; flex-direction:column; gap:8px;}
.proj-card li{font-size:14px; color:#b9cdd4; line-height:1.6; padding-left:16px; position:relative;}
.proj-card li::before{content:"·"; position:absolute; left:0; color:var(--amber); font-weight:700;}
.proj-stack{margin-top:14px; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--slate-dim);}

/* ===== EDUCATION / ACHIEVEMENTS ===== */
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:2px; background:var(--grid-line); border:1px solid var(--grid-line);}
@media (max-width:720px){.two-col{grid-template-columns:1fr;}}
.col-panel{background:var(--navy-deep); padding:28px;}
.col-panel h3{font-size:13px; color:var(--cyan); letter-spacing:0.1em; margin-bottom:18px;}
.edu-item .edu-degree{font-size:15px; color:var(--paper); font-weight:600; font-family:'JetBrains Mono',monospace;}
.edu-item .edu-inst{font-size:13.5px; color:var(--slate); margin-top:6px;}
.edu-meta{margin-top:12px; display:flex; gap:18px; font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--amber);}
.ach-list{list-style:none; display:flex; flex-direction:column; gap:12px;}
.ach-list li{font-size:14px; color:#c2d6dd; line-height:1.55; padding-left:18px; position:relative;}
.ach-list li::before{content:"◆"; position:absolute; left:0; top:2px; color:var(--cyan-dim); font-size:9px;}

/* ===== CONTACT ===== */
.contact-panel{border:1px solid var(--grid-line); padding:52px 40px; position:relative; overflow:hidden;}
.contact-panel::before{content:""; position:absolute; top:-40%; right:-10%; width:340px; height:340px; background:radial-gradient(circle, rgba(79,216,232,0.12), transparent 70%);}
.contact-title{font-size:clamp(1.8rem,5vw,2.6rem); color:var(--paper); margin-bottom:16px; position:relative;}
.contact-sub{color:var(--slate); font-size:15px; max-width:480px; line-height:1.7; margin-bottom:34px; position:relative;}
.contact-links{display:flex; flex-wrap:wrap; gap:14px; position:relative; margin-bottom:40px;}
.contact-form{position:relative; display:flex; flex-direction:column; gap:18px; max-width:520px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:0.1em; color:var(--slate); text-transform:uppercase;}
.field input, .field textarea{background:var(--navy-panel); border:1px solid var(--grid-line); color:var(--paper); font-family:'IBM Plex Sans',sans-serif; font-size:14.5px; padding:12px 14px; outline:none; transition:border-color 0.25s ease, background 0.25s ease; resize:vertical;}
.field input:focus, .field textarea:focus{border-color:var(--cyan); background:var(--navy);}
.field textarea{min-height:120px; line-height:1.6;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
@media (max-width:520px){.form-row{grid-template-columns:1fr;}}
.submit-btn{font-family:'JetBrains Mono',monospace; font-size:12.5px; letter-spacing:0.06em; padding:13px 22px; background:var(--cyan); color:var(--navy-deep); border:1px solid var(--cyan); font-weight:700; cursor:pointer; transition:all 0.25s ease; align-self:flex-start;}
.submit-btn:hover{background:var(--paper); border-color:var(--paper);}
.submit-btn:disabled{opacity:0.5; cursor:wait;}
.form-status{font-family:'JetBrains Mono',monospace; font-size:12px; letter-spacing:0.04em; min-height:16px;}
.form-status.ok{color:var(--cyan);}
.form-status.err{color:var(--amber);}
.form-divider{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--slate-dim); letter-spacing:0.12em; margin:34px 0 18px; display:flex; align-items:center; gap:12px;}
.form-divider::before, .form-divider::after{content:""; height:1px; flex:1; background:var(--grid-line);}

/* ===== page footer nav (prev/next) ===== */
.page-nav{display:flex; justify-content:space-between; margin-top:70px; padding-top:30px; border-top:1px solid var(--grid-line); gap:14px; flex-wrap:wrap;}
.page-nav a{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--slate); text-decoration:none; transition:color 0.2s ease;}
.page-nav a:hover{color:var(--cyan);}
.page-nav .dir{color:var(--slate-dim); font-size:10px; letter-spacing:0.1em; display:block; margin-bottom:4px;}

footer{text-align:center; padding:28px 20px; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--slate-dim); border-top:1px solid var(--grid-line); position:relative; z-index:1;}

::selection{background:var(--cyan); color:var(--navy-deep);}