/* ========== Theme ========== */
:root{
  --bg: #0b1220;
  --panel: #111827;
  --muted: #a2b1c6;
  --text: #e5f0ff;
  --accent: #22d3ee;
  --accent-2: #00ffc6;
  --border: #1f2937;
  --shadow: 0 20px 50px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.section-title{font-size:2rem;margin:0 0 1rem;text-shadow:0 0 12px rgba(34,211,238,.35)}
.btn{display:inline-flex;align-items:center;gap:.5rem;background:var(--accent);color:#04222a;border:none;padding:.8rem 1.1rem;border-radius:14px;font-weight:700;box-shadow:var(--shadow);}
.btn.ghost{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.link{color:var(--accent)}
.pill{display:inline-block;border:1px solid var(--border);padding:.35rem .6rem;border-radius:999px;color:var(--muted);}
.neon{color:var(--accent);font-size:3rem;text-shadow:0 0 12px rgba(0,255,198,.25),0 0 34px rgba(34,211,238,.2)}

/* ========== Header ========== */
.site-header{position:sticky;top:0;background:rgba(11,18,32,.8);backdrop-filter: blur(10px);border-bottom:1px solid var(--border);z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;letter-spacing:.5px}
.logo span{color:var(--accent)}
#main-nav a{margin-left:18px;color:var(--muted)}
#main-nav a.active{color:var(--accent)}
#theme-toggle{background:transparent;border:1px solid var(--border);border-radius:10px;color:var(--muted);padding:.4rem .6rem}

/* ========== Hero ========== */
.hero{position:relative;padding:64px 0 32px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:260px 1fr 160px;gap:24px;align-items:center}
.profile-card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:16px;box-shadow:var(--shadow)}
.profile-card img{border-radius:12px;margin-bottom:.6rem}
.profile-meta h3{margin:.3rem 0 0}
.profile-links{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.6rem}

.hero-copy .eyebrow{letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin:0 0 .5rem}
.hero-copy h1{font-size:2.6rem;line-height:1.1;margin:.2rem 0 .8rem}
.accent{color:var(--accent)}
.lead{color:var(--muted);max-width:52ch}
.cta-row{display:flex;gap:12px;margin-top:16px}

.stats-bubble{height:280px;background:linear-gradient(180deg,#121a2b,#0e1626);border:1px solid var(--border);border-radius:24px;display:grid;place-items:center;grid-template-columns:1fr;gap:6px;box-shadow:var(--shadow)}
.stats-bubble div{display:flex;flex-direction:column;align-items:center;gap:2px}
.stats-bubble span{font-size:2rem;color:var(--accent)}
.stats-bubble small{color:var(--muted)}

/* topographic background lines */
.topo{position:absolute;inset:0;background:
  radial-gradient(200px 100px at 22% 42%, transparent 40%, rgba(34,211,238,.07) 41%, transparent 42%),
  radial-gradient(600px 300px at 50% 60%, transparent 48%, rgba(34,211,238,.05) 50%, transparent 52%),
  radial-gradient(400px 180px at 80% 20%, transparent 46%, rgba(34,211,238,.06) 47%, transparent 49%);
  pointer-events:none;opacity:.8;mix-blend-mode:screen}

/* ========== About ========== */
.about{padding:40px 0}
.about-grid{display:grid;grid-template-columns:230px 1fr 320px;gap:24px;align-items:start}
.about-card{background:var(--panel);border:1px solid var(--border);padding:18px;border-radius:16px;color:var(--muted)}
.about-photo img{border-radius:16px;border:1px solid var(--border)}

/* ========== Skills ========== */
.skills{padding:24px 0 48px;background:#0c162a;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.skill-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.skill-card{background:var(--panel);border:1px solid var(--border);padding:16px;border-radius:16px}
.tags{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.tags li{border:1px solid var(--border);padding:.25rem .5rem;border-radius:999px;color:var(--muted);}

.logo-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.logo{display:grid;place-items:center;background:#0a1326;border:1px solid var(--border);border-radius:16px;padding:18px;color:var(--muted);font-weight:700;letter-spacing:.2em}

/* ========== Blog cards (home) ========== */
.home-blogs{padding:38px 0}
.section-head{display:flex;align-items:center;justify-content:space-between}
.blog-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:14px}
.blog-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;overflow:hidden;display:grid;grid-template-rows:auto 1fr}
.blog-card > div{padding:12px}
.blog-card h3{margin:.2rem 0 .2rem}
.blog-card p{color:var(--muted)}
.meta{display:flex;gap:12px;color:var(--muted);font-size:.9rem;margin-top:.4rem}
.meta.small{font-size:.8rem}

/* ========== Contact ========== */
.contact{padding:40px 0}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.contact-form textarea{grid-column:1/-1}
.contact-form input,.contact-form textarea{background:#0a1324;border:1px solid var(--border);border-radius:12px;padding:.9rem;color:var(--text)}
.contact-form button{justify-self:start}

/* ========== Blog list page ========== */
.blog-hero{padding:28px 0;border-bottom:1px solid var(--border);background:#0a1222}
.blog-list{padding:26px 0 48px}
.blog-row{display:grid;grid-template-columns:150px 1fr;gap:16px;background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:12px;margin:14px 0}

/* ========== Blog post page ========== */
.post-head{padding:24px 0 0}
.post-meta{display:flex;align-items:center;gap:16px;color:var(--muted)}
.icon-btn{background:transparent;border:1px solid var(--border);border-radius:10px;color:var(--muted);padding:.3rem .5rem}
.post-hero{margin:16px 0;border:1px solid var(--border);border-radius:16px;overflow:hidden}
.post-body{color:#dbe7ff}
.post-body h3{margin-top:1.5rem}

/* ========== Footer ========== */
.site-footer{border-top:1px solid var(--border);padding:20px 0;color:var(--muted);background:#0a1222}

/* ========== Responsive ========== */
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr;gap:16px}
  .stats-bubble{height:auto;padding:12px;grid-template-columns:repeat(4,1fr)}
  .about-grid{grid-template-columns:1fr;gap:16px}
  .skill-cards{grid-template-columns:1fr}
  .blog-cards{grid-template-columns:1fr}
  .blog-row{grid-template-columns:1fr}
  .contact-form{grid-template-columns:1fr}
}