:root{
  --bg:#030605;--panel:#080c0a;--panel2:#0b120f;--green:#00ff66;--cyan:#00e5ff;
  --text:#e2ebe6;--muted:#78867e;--line:rgba(0,255,102,.16);--max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Space Grotesk",sans-serif}
body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:20;background:repeating-linear-gradient(0deg,rgba(255,255,255,.012) 0 1px,transparent 1px 4px)}
a{color:inherit;text-decoration:none}.container{width:min(var(--max),calc(100% - 34px));margin:auto}
.topbar{height:66px;border-bottom:1px solid var(--line);background:rgba(3,6,5,.93);backdrop-filter:blur(12px);position:sticky;top:0;z-index:30}
.nav{height:100%;display:flex;align-items:center;gap:26px}.brand{font-family:"JetBrains Mono";font-weight:700;font-size:.9rem;letter-spacing:.04em}.green,.terminal-line span{color:var(--green)}
.shield{color:var(--green);font-size:1.35rem;margin-right:7px}.nav-links{display:flex;gap:18px;margin-left:auto}.nav-links a{font-size:.72rem;text-transform:uppercase;color:#84928a;letter-spacing:.08em}.nav-links a:hover{color:var(--green)}
.socials{display:flex;gap:6px}.socials a{font:600 .67rem "JetBrains Mono";border:1px solid var(--line);padding:8px;color:var(--muted)}.socials a:hover{border-color:var(--green);color:var(--green)}
.menu{display:none;background:transparent;color:var(--green);border:1px solid var(--line);padding:8px 10px}
.hero{
  min-height:680px;
  display:grid;
  place-items:center;
  text-align:center;
  position:relative;
  overflow:hidden;
  isolation:isolate;
  background:
    linear-gradient(90deg,rgba(0,5,3,.90) 0%,rgba(0,9,5,.66) 38%,rgba(0,7,4,.72) 100%),
    linear-gradient(180deg,rgba(0,255,102,.06),rgba(0,0,0,.48)),
    url("../img/doom-bg.jpg") center center / cover no-repeat;
}
.hero:after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(circle at 50% 45%,rgba(0,255,102,.12),transparent 34%),
    linear-gradient(180deg,rgba(0,0,0,.12),rgba(0,0,0,.72));
  pointer-events:none;
}
.matrix{position:absolute;inset:0;opacity:.05;z-index:1;background-image:linear-gradient(90deg,transparent 49%,rgba(0,255,102,.12) 50%,transparent 51%);background-size:74px 100%;mask-image:linear-gradient(to bottom,black,transparent 85%)}
.hero-content{position:relative;z-index:2;max-width:980px;padding:50px 24px;text-shadow:0 2px 18px rgba(0,0,0,.9)}.terminal-line{font:500 .86rem "JetBrains Mono";color:#9aa8a0;margin-bottom:18px}
h1{font:700 clamp(2.5rem,6vw,5.4rem);margin:0;letter-spacing:.02em}h1 span{color:var(--green)}h1 strong{color:var(--green);text-shadow:0 0 22px rgba(0,255,102,.45)}
.lead{font:600 1rem "JetBrains Mono";letter-spacing:.13em;margin:22px 0 10px}.sub{color:var(--muted);font:400 .85rem "JetBrains Mono"}
.hero-buttons{display:flex;justify-content:center;gap:12px;margin:32px 0;flex-wrap:wrap}.btn{border:1px solid var(--line);padding:13px 18px;font:600 .72rem "JetBrains Mono";color:#b8c7be}.btn:hover,.btn.primary{color:#001b0a;background:var(--green);border-color:var(--green);box-shadow:0 0 26px rgba(0,255,102,.28)}
.btn.primary{font-weight:700}
.status{font:500 .67rem "JetBrains Mono";color:#65736b}.dot{display:inline-block;width:7px;height:7px;background:var(--green);border-radius:50%;box-shadow:0 0 10px var(--green);margin-right:6px}.sep{margin:0 9px;color:#304039}
.section{padding:76px 0}.section-title{text-align:center;font:700 1rem "JetBrains Mono";letter-spacing:.08em;margin-bottom:32px}.section-title span{color:var(--green)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{min-height:205px;background:linear-gradient(145deg,var(--panel),#050806);border:1px solid rgba(255,255,255,.09);padding:23px;position:relative;transition:.22s}.card:hover{transform:translateY(-3px);border-color:rgba(0,255,102,.55);box-shadow:0 12px 35px rgba(0,255,102,.06)}.icon{width:44px;height:44px;display:grid;place-items:center;background:rgba(0,255,102,.08);color:var(--green);font-size:1.35rem;margin-bottom:22px}.icon.cyan{color:var(--cyan);background:rgba(0,229,255,.07)}.card h2{font:600 .95rem "JetBrains Mono";margin:0 0 10px}.card p{color:var(--muted);font-size:.82rem;line-height:1.65;max-width:310px}.arrow{position:absolute;right:22px;bottom:18px;color:#31423a}.card:hover .arrow{color:var(--green)}
.about-grid{display:grid;grid-template-columns:300px 1fr;gap:38px;align-items:center}.photo-placeholder{height:340px;border:1px solid var(--line);background:radial-gradient(circle,rgba(0,255,102,.1),transparent 60%),#050806;display:grid;place-items:center;align-content:center;color:var(--green);font:700 3rem "JetBrains Mono";box-shadow:var(--shadow)}.photo-placeholder small{font:500 .65rem "JetBrains Mono";color:var(--muted);margin-top:12px}.about h2{font-size:2rem;margin:0 0 14px}.about p{color:var(--muted);line-height:1.8;max-width:700px}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.tags span{border:1px solid var(--line);padding:7px 9px;color:#8fa097;font:500 .62rem "JetBrains Mono"}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.cert{background:var(--panel);border:1px solid rgba(255,255,255,.08);padding:15px}.cert-img{height:160px;display:grid;place-items:center;background:#050806;border:1px dashed var(--line);font:600 .7rem "JetBrains Mono";color:#526158}.cert h3{font-size:.95rem;margin:15px 0 5px}.cert p{font:500 .7rem "JetBrains Mono";color:var(--muted)}
.contact-box{border:1px solid var(--line);background:var(--panel);padding:25px;font:500 .82rem "JetBrains Mono"}.contact-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.contact-links a{border:1px solid var(--line);padding:10px 15px;color:#a7b6ad}.contact-links a:hover{color:var(--green);border-color:var(--green)}
footer{border-top:1px solid var(--line);padding:25px 0;color:#5c6962;font:500 .65rem "JetBrains Mono"}.footer-inner{display:flex;justify-content:space-between;gap:20px}.footer-inner span:first-child{color:var(--green)}
.terminal-toggle{position:fixed;right:25px;bottom:22px;width:55px;height:55px;border:0;border-radius:50%;background:var(--green);color:#001b0a;font:700 1rem "JetBrains Mono";box-shadow:0 0 25px rgba(0,255,102,.35);z-index:40;cursor:pointer}
.terminal{position:fixed;right:25px;bottom:90px;width:min(520px,calc(100% - 30px));background:#020503;border:1px solid var(--green);box-shadow:0 0 35px rgba(0,255,102,.15);z-index:41;font:500 .78rem "JetBrains Mono"}.terminal-head{padding:10px 13px;border-bottom:1px solid var(--line);color:var(--green)}.terminal-head button{float:right;background:none;border:0;color:var(--muted);cursor:pointer}.terminal-body{padding:16px;min-height:190px}.prompt-line{display:flex;gap:8px;margin-top:16px}.prompt-line input{background:none;border:0;outline:0;color:white;flex:1;font:inherit}
@media(max-width:900px){.nav-links{display:none}.socials{margin-left:auto}.menu{display:block}.cards{grid-template-columns:repeat(2,1fr)}.about-grid{grid-template-columns:1fr}.photo-placeholder{height:280px}.cert-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.socials{display:none}.hero{min-height:610px;background-position:center top}.lead{font-size:.78rem}.sub{line-height:1.8;padding:0 15px}.hero-buttons{flex-direction:column;padding:0 30px}.cards,.cert-grid{grid-template-columns:1fr}.card{min-height:190px}.section{padding:55px 0}.footer-inner{flex-direction:column}}

/* data-driven certificate cards (used on homepage, rendered by certs.js) */
.cert-card{
  background:var(--panel);border:1px solid rgba(255,255,255,.08);padding:15px;
  display:flex;flex-direction:column;gap:8px;
}
.cert-thumb{width:100%;height:150px;object-fit:cover;border:1px solid var(--line);}
.cert-thumb-placeholder{
  height:150px;display:grid;place-items:center;background:#050806;
  border:1px dashed var(--line);font-size:30px;color:#526158;
}
.cert-card .cert-status{font:600 .62rem "JetBrains Mono";color:var(--green);letter-spacing:.08em;}
.cert-card .cert-name{font:600 .95rem "JetBrains Mono";}
.cert-card .cert-issuer{font:500 .7rem "JetBrains Mono";color:var(--muted);}
.cert-card .cert-date{font:500 .65rem "JetBrains Mono";color:#526158;margin-top:auto;}