:root{
  --bg: #0b0f14;
  --panel: #171b22;
  --text: #e8eaed;
  --muted: #a9b0b8;
  --accent: #ffffff;
  --link: #d9e1ff;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

*{ box-sizing: border-box; }

html, body{ height: 100%; scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

/* -------- base layout -------- */
.skip-link{ position:absolute; left:-9999px; top:0; background:#000; color:#fff; padding:.6rem 1rem; z-index:9999; }
.skip-link:focus{ left:1rem; top:1rem; }

#stars{ position: fixed; inset: 0; width: 100%; height: 100%; display:block; z-index: -1; }

.site-header{
  position: sticky; top: 0; display: grid; grid-template-columns: 1fr auto auto;
  align-items: center; gap: 1rem; padding: .8rem 1.2rem;
  background: rgba(11,15,20,.45); backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,.06); z-index: 10;
}

.brand{ display:flex; align-items:center; gap:.6rem; font-weight: 800; letter-spacing:.3px; }
.brand-name{ color:var(--text); text-decoration:none; font-weight:800; }
.logo-dot{ width:.6rem; height:.6rem; border-radius:50%; background:var(--accent); box-shadow:0 0 12px rgba(255,255,255,.6); }

.site-nav a{ color: var(--text); text-decoration: none; margin-left: 1rem; opacity: .85; }
.site-nav a:hover{ opacity: 1; text-decoration: underline; text-underline-offset: 4px; }
.nav-resume{ font-weight: 700; }

.social .icon-btn{ color: var(--text); opacity: .85; margin-left: .5rem; }
.social .icon-btn:hover{ opacity: 1; transform: translateY(-1px); }
.icon-btn{ display:inline-flex; align-items:center; justify-content:center; padding:.3rem; border-radius:8px; }

/* -------- hero -------- */
.hero{
  min-height: 60vh;                 /* reduced whitespace */
  display:flex; align-items:center; justify-content:center;
  text-align: left; padding: 4.5rem 1.25rem 1.25rem;
}
.hero + .section{ padding-top: 2rem; } /* tighter spacing after hero */

.hero-inner{ max-width: 980px; width: 100%; }
.hero h1{
  font-family: "Playfair Display", Georgia, serif; font-weight: 900;
  font-size: clamp(2.6rem, 8vw, 5rem); letter-spacing: .5px; margin: 0 0 .6rem 0;
}
.subtitle{ font-size: clamp(1rem, 2.4vw, 1.3rem); color: var(--muted); margin-bottom: 1.4rem; }

.cta-row{ display:flex; flex-wrap:wrap; gap:.8rem; margin-bottom: 1.2rem; }
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:.75rem 1.1rem; border:1px solid rgba(255,255,255,.25);
  border-radius: 10px; color: var(--text); text-decoration:none; transition: transform .15s ease, background .15s ease, border-color .15s ease;
  backdrop-filter: blur(2px);
}
.btn:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.55); }
.btn-primary{ background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.6); }

.follow-link{ display:inline-block; margin-top:.2rem; color:var(--link); text-decoration:none; }
.follow-link:hover{ text-decoration: underline; text-underline-offset: 4px; }

/* -------- sections -------- */
.section{ padding: 4rem 1.5rem; max-width: 1100px; margin: 0 auto; }
.section-title{
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.6rem, 3.8vw, 2.4rem); margin: 0 0 1.25rem 0;
}
.lede{ max-width: 900px; color: var(--text); opacity: .92; }

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1.2rem 1.2rem;
}

.edu h3{ margin:.2rem 0 .2rem; }
.meta{ color: var(--muted); font-size:.95rem; }

/* -------- timeline -------- */
.timeline{ list-style:none; margin:0; padding:0; position:relative; }
.timeline::before{ content:""; position:absolute; left:22px; top:0; bottom:0; width:2px; background:rgba(255,255,255,.15); }
.tl-item{ display:grid; grid-template-columns: 50px 1fr; gap: 1rem; margin-bottom: 1.2rem; }
.tl-node{
  width:10px; height:10px; background:var(--accent); border-radius:50%; margin: .35rem 0 0 18px;
  box-shadow:0 0 10px rgba(255,255,255,.6);
}
.tl-card{ padding:1rem; border-radius:12px; background: rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.08); }

/* -------- project grid -------- */
.grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.project .project-head h3{ margin:.2rem 0 .4rem; }
.project .stack{ display:block; color:var(--muted); }
.project .meta{ display:block; color:var(--muted); margin-top:.1rem; }

/* -------- skills -------- */
.skills-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 1rem; }
.badges{ display:flex; flex-wrap:wrap; gap:.5rem; }
.badge{
  border:1px solid rgba(255,255,255,.2);
  padding:.4rem .6rem; border-radius: 999px; font-size:.95rem;
  background: rgba(255,255,255,.04);
}

/* -------- contact -------- */
.contact-card{ display:grid; gap:.4rem; padding:1.2rem; }
.contact-links .btn{ margin-right:.4rem; }

.site-footer{
  text-align:center; padding:2rem 1rem; color:var(--muted);
  border-top:1px solid rgba(255,255,255,.06); background: rgba(11,15,20,.6);
}

/* -------- unreal section -------- */
.ue-two{ display:grid; grid-template-columns: 1.2fr .8fr; gap: 1rem; margin-bottom: 1rem; }
.ue-summary ul{ margin:.4rem 0 1rem 1rem; }
.progress{
  --h: 12px;
  position: relative; background: rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15); border-radius: 999px;
  height: var(--h); overflow: hidden; margin:.6rem 0 1rem;
}
.progress__bar{ background: rgba(255,255,255,.75); height: 100%; width: 0%; transition: width .8s ease; }
.progress__txt{ position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:.8rem; color:#111; mix-blend-mode: screen; }

.ue-video .video-embed{ aspect-ratio: 16 / 9; width: 100%; border-radius: 12px; overflow: hidden; border:1px solid rgba(255,255,255,.15); }
.ue-video iframe{ width:100%; height:100%; display:block; }

/* Certificate grid: uniform thumbnails */
.ue-grid{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 1rem; margin: 1rem 0;
}
.ue-cert{
  display:flex; flex-direction:column;
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
}
.ue-cert img{
  width: 100%;
  aspect-ratio: 16 / 11;
  height: auto;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid rgba(255,255,255,.06);
  cursor: zoom-in;
}
.ue-cert figcaption{ padding:.6rem .8rem; color: var(--muted); font-size: .92rem; }

.ue-spotlight .ue-docs .btn{ margin-right:.5rem; }

/* -------- lightbox -------- */
.lightbox{ position: fixed; inset:0; background: rgba(0,0,0,.8); display:none; align-items:center; justify-content:center; padding: 2rem; z-index: 50; }
.lightbox.is-open{ display:flex; }
.lightbox__img{ max-width: min(1100px, 92vw); max-height: 84vh; border-radius: 10px; border:1px solid rgba(255,255,255,.2); }
.lightbox__caption{ color:#fff; margin-top:.6rem; text-align:center; }
.lightbox__close{
  position:absolute; top: 1rem; right: 1rem; font-size: 2rem; line-height: 1; border:0; background: transparent; color:#fff; cursor:pointer;
}

/* -------- reveal on scroll -------- */
.reveal{ opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* -------- responsive -------- */
@media (max-width: 980px){
  .ue-two{ grid-template-columns: 1fr; }
}
@media (max-width: 720px){
  .site-header{ grid-template-columns: 1fr auto; grid-auto-flow: row; }
  .site-nav{ display:flex; flex-wrap:wrap; gap:.6rem; }
  .hero{ min-height: 56vh; padding: 3.5rem 1rem 1rem; } /* smaller on mobile */
}
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}