:root{
  --bg:#050707;
  --bg-2:#0a0e0d;
  --panel:#0d1413;
  --border:#163029;
  --mint:#39ffb0;
  --mint-soft:#5cffc1;
  --mint-dim:#1ba87a;
  --text:#e8fff5;
  --muted:#7a8b86;
  --glow:0 0 18px rgba(57,255,176,.55), 0 0 42px rgba(57,255,176,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:'Space Grotesk',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  background-image:
    radial-gradient(ellipse at top, rgba(57,255,176,.08), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(57,255,176,.05), transparent 50%);
}
body::before{
  content:"";position:fixed;inset:0;
  background-image:
    linear-gradient(rgba(57,255,176,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,176,.04) 1px, transparent 1px);
  background-size:60px 60px;
  pointer-events:none;z-index:0;
  mask-image:radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* NAV */
nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(16px);
  background:rgba(5,7,7,.75);
  border-bottom:1px solid var(--border);
  transition:.3s;
}
nav.scrolled{box-shadow:0 4px 30px rgba(57,255,176,.08)}
.nav-inner{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;max-width:1200px;margin:0 auto;gap:16px}
.logo{font-family:'JetBrains Mono',monospace;font-weight:600;color:var(--mint);text-shadow:var(--glow);letter-spacing:1px;text-decoration:none;font-size:18px}
.logo span{color:var(--text)}
.nav-links{display:flex;gap:24px;list-style:none;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-size:13px;transition:.2s;font-family:'JetBrains Mono',monospace;position:relative;padding:6px 0}
.nav-links a:hover,.nav-links a.active{color:var(--mint);text-shadow:var(--glow)}
.nav-links a.active::after{
  content:"";position:absolute;bottom:-4px;left:0;right:0;height:2px;background:var(--mint);box-shadow:var(--glow);
}

/* hamburger */
.nav-toggle{
  display:none;background:none;border:1px solid var(--border);border-radius:8px;
  padding:10px;cursor:pointer;flex-direction:column;gap:4px;width:44px;height:44px;
  align-items:center;justify-content:center;transition:.2s;
}
.nav-toggle:hover{border-color:var(--mint)}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--mint);
  box-shadow:var(--glow);transition:.3s;border-radius:2px;
}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:860px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(5,7,7,.98);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav-links.open{max-height:500px}
  .nav-links li{border-bottom:1px solid var(--border)}
  .nav-links a{display:block;padding:18px 24px;font-size:14px}
}

/* HERO */
.hero{padding:100px 0 80px;text-align:center;position:relative}
.hero .tag{
  display:inline-block;font-family:'JetBrains Mono',monospace;font-size:11px;
  color:var(--mint);border:1px solid var(--border);padding:8px 16px;border-radius:99px;
  margin-bottom:28px;background:rgba(57,255,176,.05);
}
.hero .tag::before{content:"●";margin-right:8px;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;text-shadow:var(--glow)}50%{opacity:.4}}
h1{font-size:clamp(36px,7vw,84px);font-weight:700;line-height:1.05;letter-spacing:-2px;margin-bottom:20px}
h1 .accent{color:var(--mint);text-shadow:var(--glow);font-style:italic}
.hero p{max-width:600px;margin:0 auto 36px;color:var(--muted);font-size:clamp(15px,2vw,18px);padding:0 16px}
.cta{display:inline-flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn{
  display:inline-block;padding:14px 26px;text-decoration:none;border-radius:8px;
  font-family:'JetBrains Mono',monospace;font-size:13px;font-weight:600;
  transition:.25s;cursor:pointer;border:1px solid transparent;
  letter-spacing:.5px;
}
.btn-primary{background:var(--mint);color:#001a10;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(57,255,176,.8),0 0 60px rgba(57,255,176,.4)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--mint);color:var(--mint);text-shadow:var(--glow)}

.scroll-hint{
  margin-top:80px;display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:3px;
}
.scroll-line{width:1px;height:40px;background:linear-gradient(var(--mint),transparent);animation:scrollDown 2s infinite}
@keyframes scrollDown{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media(max-width:560px){.scroll-hint{margin-top:50px}}

/* SECTION */
section{padding:80px 0;position:relative}
@media(max-width:560px){section{padding:60px 0}}
.section-label{font-family:'JetBrains Mono',monospace;color:var(--mint);font-size:12px;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
.section-title{font-size:clamp(28px,4vw,52px);font-weight:700;letter-spacing:-1px;margin-bottom:40px}
.section-title::after{content:"";display:block;width:60px;height:2px;background:var(--mint);box-shadow:var(--glow);margin-top:14px}

/* GRID */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* CARD */
.card{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:24px;transition:.3s;position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--mint),transparent);
  opacity:0;transition:.3s;
}
.card:hover{border-color:var(--mint);transform:translateY(-4px);box-shadow:0 10px 40px rgba(57,255,176,.12)}
.card:hover::before{opacity:1}
.card h3{font-size:18px;margin-bottom:14px;color:var(--mint-soft);display:flex;align-items:center;gap:10px}
.card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:var(--glow)}
.card ul{list-style:none}
.card li{padding:8px 0;color:var(--muted);font-size:14px;border-bottom:1px dashed rgba(57,255,176,.08);transition:.2s}
.card li:last-child{border:none}
.card li:hover{color:var(--text);padding-left:6px}
.card li::before{content:"›";color:var(--mint);margin-right:10px;font-weight:bold}

/* TABS */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;border-bottom:1px solid var(--border);padding-bottom:16px}
.tab{
  background:transparent;border:1px solid var(--border);color:var(--muted);
  padding:10px 18px;border-radius:8px;font-family:'JetBrains Mono',monospace;
  font-size:12px;cursor:pointer;transition:.2s;letter-spacing:1px;
}
.tab:hover{color:var(--text);border-color:var(--mint-dim)}
.tab.active{background:var(--mint);color:#001a10;border-color:var(--mint);box-shadow:var(--glow)}
.tab-panel{display:none;animation:fadeIn .4s ease}
.tab-panel.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  background:var(--panel);border:1px solid var(--border);color:var(--text);
  padding:10px 18px;border-radius:99px;font-size:14px;transition:.2s;cursor:default;
}
.chip:hover{border-color:var(--mint);color:var(--mint);text-shadow:var(--glow);transform:translateY(-2px)}

/* WORKFLOW */
.workflow{display:flex;flex-direction:column;margin-top:16px}
.workflow-step{
  display:flex;gap:20px;padding:20px;border:1px solid var(--border);border-radius:12px;
  background:var(--panel);margin-bottom:14px;transition:.3s;align-items:center;
}
.workflow-step:hover{border-color:var(--mint);transform:translateX(6px)}
.step-num{
  flex-shrink:0;width:44px;height:44px;border-radius:50%;border:1px solid var(--mint);color:var(--mint);
  display:flex;align-items:center;justify-content:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:13px;
  text-shadow:var(--glow);background:rgba(57,255,176,.05);
}
.step-content h4{font-size:17px;margin-bottom:4px}
.step-content p{color:var(--muted);font-size:14px;margin:0}
@media(max-width:560px){
  .workflow-step{padding:16px;gap:14px}
  .workflow-step:hover{transform:none}
}

/* ACCORDION */
.accordion{display:flex;flex-direction:column;gap:10px}
.acc-item{
  background:var(--panel);border:1px solid var(--border);border-radius:12px;
  overflow:hidden;transition:.25s;
}
.acc-item[open]{border-color:var(--mint);box-shadow:0 0 30px rgba(57,255,176,.1)}
.acc-item summary{
  padding:20px 24px;cursor:pointer;display:flex;align-items:center;gap:14px;
  list-style:none;font-size:15px;font-weight:500;
}
.acc-item summary::-webkit-details-marker{display:none}
.acc-num{
  font-family:'JetBrains Mono',monospace;color:var(--mint);font-size:11px;
  border:1px solid var(--mint-dim);padding:4px 8px;border-radius:4px;
}
.acc-icon{
  margin-left:auto;color:var(--mint);font-size:22px;font-weight:300;transition:.3s;
  width:24px;text-align:center;
}
.acc-item[open] .acc-icon{transform:rotate(45deg)}
.acc-item p{padding:0 24px 22px;color:var(--muted);font-size:14px}
@media(max-width:560px){.acc-item summary{padding:16px;font-size:14px;gap:10px}}

/* EXPERIENCE */
.exp-card{
  background:linear-gradient(135deg,var(--panel),rgba(57,255,176,.03));
  border:1px solid var(--border);border-radius:16px;padding:48px 24px;text-align:center;
  position:relative;overflow:hidden;
}
.exp-card .big-num{
  font-size:clamp(70px,12vw,140px);font-weight:700;line-height:1;
  color:var(--mint);text-shadow:var(--glow);font-family:'JetBrains Mono',monospace;
}
.exp-card .big-num::after{content:"+";font-size:.6em;vertical-align:top}
.exp-card .label{font-size:clamp(15px,2vw,18px);margin:8px 0 20px;color:var(--text)}
.exp-card p{max-width:600px;margin:0 auto;color:var(--muted);font-size:14px}

/* WHY */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(max-width:640px){.why-grid{grid-template-columns:1fr}}
.why-item{
  display:flex;gap:14px;align-items:center;padding:18px;
  border:1px solid var(--border);border-radius:10px;background:var(--panel);
  transition:.2s;cursor:default;font-size:14px;
}
.why-item:hover{border-color:var(--mint);background:rgba(57,255,176,.04);transform:translateY(-2px)}
.why-check{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;background:var(--mint);color:#001a10;
  display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:14px;
  box-shadow:var(--glow);
}

/* FOOTER */
footer{border-top:1px solid var(--border);padding:60px 0 40px;text-align:center;margin-top:40px}
footer h2{font-size:clamp(26px,4vw,42px);margin-bottom:14px;letter-spacing:-1px}
footer h2 .accent{color:var(--mint);text-shadow:var(--glow);font-style:italic}
footer p{color:var(--muted);margin-bottom:24px;font-size:15px}
.copy{margin-top:36px;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--muted)}

/* BACK TO TOP */
.back-to-top{
  position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;
  background:var(--mint);color:#001a10;text-decoration:none;
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:bold;
  box-shadow:var(--glow);opacity:0;pointer-events:none;transition:.3s;z-index:40;
}
.back-to-top.visible{opacity:1;pointer-events:auto}
.back-to-top:hover{transform:translateY(-4px)}
@media(max-width:560px){.back-to-top{bottom:16px;right:16px;width:42px;height:42px}}

/* REVEAL */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:560px){
  .hero{padding:60px 0 50px}
  .container{padding:0 18px}
  .btn{padding:13px 22px;font-size:12px}
  .cta{display:flex;width:100%}
  .cta .btn{flex:1;text-align:center}
}

/* ============ WORKS ============ */
.works-intro{
  color:var(--muted); max-width:680px; margin:0 0 32px;
  font-family:'JetBrains Mono',monospace; font-size:14px;
}
.works-grid{
  list-style:none; display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:20px; padding:0;
}
.work-card{
  background:linear-gradient(180deg, var(--panel), var(--bg-2));
  border:1px solid var(--border);
  border-radius:14px;
  padding:24px;
  display:flex; flex-direction:column; gap:14px;
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  position:relative; overflow:hidden;
}
.work-card::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(ellipse at top right, rgba(57,255,176,.08), transparent 60%);
  opacity:0; transition:opacity .3s ease; pointer-events:none;
}
.work-card:hover{
  transform:translateY(-4px);
  border-color:var(--mint-dim);
  box-shadow:0 12px 40px rgba(57,255,176,.12);
}
.work-card:hover::before{opacity:1}
.work-head{
  display:flex; justify-content:space-between; align-items:center;
  font-family:'JetBrains Mono',monospace; font-size:12px;
}
.work-num{color:var(--mint); text-shadow:var(--glow); letter-spacing:1px}
.work-tag{
  color:var(--muted); border:1px solid var(--border);
  padding:4px 10px; border-radius:20px;
}
.work-title{
  font-size:22px; font-weight:700; color:var(--text);
  letter-spacing:-.5px;
}
.work-desc{color:var(--muted); font-size:14px; line-height:1.6}
.work-stack{display:flex; flex-wrap:wrap; gap:6px}
.work-links{
  display:flex; gap:10px; margin-top:auto; padding-top:8px;
  border-top:1px dashed var(--border);
}
.work-link{
  flex:1; text-align:center; text-decoration:none;
  padding:10px 14px; border-radius:8px;
  font-family:'JetBrains Mono',monospace; font-size:13px;
  border:1px solid var(--border); color:var(--text);
  transition:.2s; display:inline-flex; align-items:center; justify-content:center; gap:6px;
}
.work-link:hover{border-color:var(--mint); color:var(--mint); text-shadow:var(--glow)}
.work-link-primary{
  background:var(--mint); color:#021; border-color:var(--mint);
  font-weight:600;
}
.work-link-primary:hover{
  background:var(--mint-soft); color:#021; text-shadow:none;
  box-shadow:var(--glow);
}
.link-icon{font-size:14px}
.works-cta{margin-top:28px; text-align:center}

@media(max-width:600px){
  .works-grid{grid-template-columns:1fr}
  .work-links{flex-direction:column}
}