:root{
  --bg:#071228; --card:#07182a; --muted:#99a3b5; --accent:#ff7aa2; --accent-2:#06b6d4;
  --radius:12px; --container:1100px; --gap:20px;
  --text:#eaf2fb;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

/* Reset & base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:linear-gradient(180deg,#071228 0%, #071b2a 100%);color:var(--text);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;
  padding-top:96px; /* space for fixed navbar */
}
.container{max-width:var(--container);margin:0 auto;padding:28px;}
a{color:var(--accent-2);text-decoration:none}
.muted{color:var(--muted);font-size:.95rem}

/* Header */
.site-header{
  padding:14px 0 8px;
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:50;
  background:linear-gradient(180deg,rgba(7,18,40,0.96),rgba(7,27,42,0.92));
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 18px;
  border-radius:999px;
  background:radial-gradient(circle at 0 0, rgba(255,122,162,0.16), transparent 55%),
             radial-gradient(circle at 100% 100%, rgba(6,182,212,0.18), transparent 55%),
             linear-gradient(145deg, rgba(7,18,40,0.96), rgba(7,27,42,0.98));
  border:1px solid rgba(255,255,255,0.12);
  box-shadow:0 18px 40px rgba(0,0,0,0.55);
}
.brand .logo{height:48px;display:block}
.menu-toggle, .menu-close, .btn-icon{
  background:transparent;border:0;color:var(--muted);font-size:1.15rem;cursor:pointer;padding:8px;border-radius:8px;
}
.sidemenu{display:flex;gap:8px;list-style:none;margin:0;padding:0;align-items:center}
.sidemenu a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  border-radius:999px;
  font-size:.88rem;
  text-transform:uppercase;
  letter-spacing:.09em;
  color:var(--muted);
}
.sidemenu a:hover{
  color:var(--text);
  background:rgba(6,182,212,0.12);
}
.sidemenu a.active{
  color:var(--text);
  background:rgba(6,182,212,0.2);
  box-shadow:0 12px 28px rgba(0,0,0,0.6);
}
.nav-actions{display:flex;gap:8px;align-items:center}

.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease;
  z-index:55;
}
.nav-overlay.show{
  opacity:1;
  visibility:visible;
}

/* Mobile */
@media (max-width:900px){
  .sidemenu{position:fixed;right:-320px;top:0;height:100%;width:280px;flex-direction:column;padding:28px;background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:right .25s ease;z-index:60}
  .sidemenu.show{right:0}
  .menu-toggle{display:block}
}
@media (min-width:901px){
  .menu-toggle{display:none}
}

/* Header text */
.header-text{padding:40px 0}
.header-text .eyebrow{color:var(--muted);margin:0 0 8px}
.header-text h1{margin:0;font-size:2.1rem;max-width:34rem}
.header-text .lead{color:var(--muted);margin-top:10px}

.accent{color:var(--accent)}

.header-ctas{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* Buttons */
.btn{
  display:inline-block;
  padding:10px 16px;
  border-radius:10px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  color:black;
  font-weight:600;
  border:0;
  box-shadow:0 10px 25px rgba(0,0,0,0.35);
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn:hover{
  transform:translateY(-1px);
  box-shadow:0 14px 30px rgba(0,0,0,0.45);
  filter:brightness(1.05);
}
.btn-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,0.18);
  color:var(--text);
}
.btn-link{background:transparent;color:var(--accent-2)}
.btn-icon i{font-size:1.05rem}

/* Sections */
.section{
  padding:40px 0;
  border-top:1px solid rgba(255,255,255,0.03);
  scroll-margin-top:110px;
}
.sub-title{margin:0 0 18px;font-size:1.25rem}
.about-grid{display:grid;grid-template-columns:360px 1fr;gap:30px;align-items:center}
.about-image img{width:100%;height:auto;border-radius:14px;display:block}

/* Tabs */
.tabs{display:flex;gap:10px;margin-top:16px}
.tab-links{background:transparent;border:0;color:var(--muted);padding:8px 12px;border-radius:8px;cursor:pointer}
.tab-links.active{background:rgba(255,255,255,0.02);color:var(--text)}
.tab-panel{margin-top:14px}
.tab-panel[hidden]{display:none}

/* Services & skills */
.services-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.services-list article{
  background:radial-gradient(circle at 0 0, rgba(255,122,162,0.16), transparent 55%),
             radial-gradient(circle at 100% 100%, rgba(6,182,212,0.2), transparent 55%),
             linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.25));
  border-radius:var(--radius);
  padding:18px 18px 20px;
  border:1px solid rgba(255,255,255,0.05);
  box-shadow:0 18px 40px rgba(0,0,0,0.4);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.services-list article:hover{
  transform:translateY(-6px) scale(1.02);
  box-shadow:0 26px 55px rgba(0,0,0,0.55);
  border-color:rgba(255,122,162,0.6);
}
.services-list article h3{margin:8px 0 6px}
.services-list article p{color:var(--muted);font-size:.95rem}
.services-list article a{margin-top:10px;display:inline-block;font-size:.9rem}
.service-icon{font-size:28px;margin-bottom:8px;color:var(--accent)}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}
.skill-card{
  background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(0,0,0,0.35));
  padding:14px;
  border-radius:12px;
  text-align:center;
  border:1px solid rgba(255,255,255,0.04);
  box-shadow:0 10px 26px rgba(0,0,0,0.4);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.skill-card:hover{
  transform:translateY(-5px);
  box-shadow:0 18px 40px rgba(0,0,0,0.55);
  border-color:rgba(6,182,212,0.7);
}
.skill-icon{font-size:30px;margin-bottom:4px}
.skill-card h4{margin:0;font-size:.95rem}

/* Portfolio */
.work-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-top:18px}
.work{
  position:relative;
  border-radius:12px;
  overflow:hidden;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.25));
  box-shadow:0 18px 40px rgba(0,0,0,0.55);
  transform:translateY(0);
  transition:transform .25s ease, box-shadow .25s ease;
}
.work img{
  width:100%;
  height:190px;
  object-fit:cover;
  display:block;
  transition:transform .4s ease;
}
.work .layer{
  position:absolute;
  inset:0;
  padding:18px;
  background:linear-gradient(180deg,rgba(7,18,40,0.1),rgba(7,18,40,0.95));
  color:var(--text);
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  opacity:0;
  transform:translateY(14px);
  transition:opacity .25s ease, transform .25s ease;
}
.work .layer h3{margin:0 0 6px;font-size:1.05rem}
.work .layer p{margin:0 0 10px;font-size:.9rem;color:var(--muted)}
.work .layer a{align-self:flex-start}
.work:hover{transform:translateY(-8px);box-shadow:0 26px 60px rgba(0,0,0,0.7)}
.work:hover img{transform:scale(1.06)}
.work:hover .layer{opacity:1;transform:translateY(0)}
.repo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:18px}
.repo{padding:12px;border-radius:12px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.03)}
.repo h3{margin:0;font-size:1rem}
.repo p{color:var(--muted);margin:8px 0 0}
.repo .meta{display:flex;justify-content:space-between;color:var(--muted);margin-top:10px}

/* Certifications */
.certs .cert-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
  margin-top:16px;
}
.cert-card{
  position:relative;
  padding:20px 18px 18px;
  border-radius:16px;
  background:radial-gradient(circle at 0 0, rgba(255,122,162,0.22), transparent 55%),
             radial-gradient(circle at 100% 100%, rgba(6,182,212,0.3), transparent 55%),
             linear-gradient(145deg, rgba(7,18,40,0.9), rgba(7,27,42,0.95));
  border:1px solid rgba(255,255,255,0.18);
  box-shadow:0 20px 50px rgba(0,0,0,0.65);
  overflow:hidden;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.cert-card::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:conic-gradient(from 120deg, rgba(255,122,162,0.4), transparent, rgba(6,182,212,0.5), transparent);
  opacity:0;
  transform:rotate(8deg);
  transition:opacity .28s ease;
}
.cert-card > *{position:relative;z-index:1}
.cert-card:hover{
  transform:translateY(-8px) scale(1.01);
  box-shadow:0 30px 70px rgba(0,0,0,0.8);
  border-color:rgba(255,122,162,0.8);
}
.cert-card:hover::before{opacity:1}
.cert-icon{
  width:50px;
  height:50px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;
  margin-bottom:10px;
  box-shadow:0 12px 28px rgba(0,0,0,0.6);
}
.cert-card h3{margin:0 0 6px;font-size:1.02rem}
.cert-card p{margin:0 0 8px;color:var(--muted);font-size:.92rem}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 420px;gap:24px;align-items:start}
.contact-info p{margin:4px 0}
.contact-info a{color:var(--text)}
.social-icons{display:flex;gap:12px;margin-top:16px}
.social-icons a{
  width:40px;
  height:40px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:radial-gradient(circle at 0 0, rgba(255,122,162,0.25), transparent 60%),
             linear-gradient(145deg, rgba(7,18,40,0.95), rgba(7,27,42,0.95));
  border:1px solid rgba(255,255,255,0.12);
  color:var(--muted);
  font-size:1.1rem;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, color .18s ease;
}
.social-icons a:hover{
  transform:translateY(-4px) scale(1.04);
  box-shadow:0 18px 36px rgba(0,0,0,0.7);
  border-color:rgba(255,122,162,0.8);
  color:var(--accent);
}
.contact-form label{display:block;margin-top:12px;font-size:.9rem}
.contact-form input, .contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:var(--text);margin-top:6px}
.form-msg{margin-top:10px;color:var(--accent-2)}

/* Footer */
.site-footer{padding:18px 0;text-align:center;color:var(--muted);border-top:1px solid rgba(255,255,255,0.02);margin-top:24px}

/* Light theme (optional) */
:root.light{
  --bg:#fff; --card:#f6f7fb; --muted:#334155; --text:#0b1220; --accent:#ff7aa2; --accent-2:#06b6d4;
}
body.light{background:var(--bg);color:var(--text)}
body.light a{color:var(--accent-2)}

/* Small screen adjustments */
@media (max-width:900px){
  .container{padding:20px 18px}
  .about-grid{grid-template-columns:1fr}
  .about-image{max-width:260px;margin:0 auto}
  .contact-grid{grid-template-columns:1fr}
}

@media (max-width:640px){
  .header-text{padding:28px 0 24px;text-align:center}
  .header-text h1{font-size:1.8rem;max-width:none}
  .header-text .lead{font-size:.95rem}
  .header-ctas{justify-content:center}
  .work img{height:180px}
  .container{padding:18px 14px}
}