:root{
  --bg0:#050b1a;
  --bg1:#071a3a;
  --card: rgba(255,255,255,.08);
  --card2: rgba(255,255,255,.06);
  --border: rgba(255,255,255,.14);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);
  --muted2: rgba(255,255,255,.60);
  --accent:#76b7ff;
  --accent2:#3aa0ff;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius: 18px;
  --radius2: 14px;
  --max: 1100px;
  --focus: 2px solid rgba(118,183,255,.75);
}

/* Base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(118,183,255,.35), transparent 55%),
    radial-gradient(900px 500px at 110% 10%, rgba(58,160,255,.28), transparent 60%),
    linear-gradient(180deg, var(--bg1), var(--bg0));
  min-height:100vh;
}

a{color:var(--accent); text-decoration:none}
a:hover{color:white}
code{
  background: rgba(0,0,0,.25);
  padding:.15rem .35rem;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.12);
}

.container{
  width:min(var(--max), calc(100% - 2rem));
  margin:0 auto;
}

.skip-link{
  position:absolute; left:-9999px; top:0;
  background:#fff; color:#000; padding:.5rem .75rem; border-radius:10px;
}
.skip-link:focus{left:1rem; top:1rem; outline:var(--focus)}

/* Header / Nav */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(5,11,26,.62);
  border-bottom: 1px solid rgba(255,255,255,.10);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.9rem 0;
  gap:1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.75rem;
  color:var(--text);
}
.brand-mark{
  width:44px; height:44px;
  display:grid; place-items:center;
  border-radius:14px;
  background: linear-gradient(135deg, rgba(118,183,255,.9), rgba(58,160,255,.7));
  box-shadow: 0 12px 30px rgba(58,160,255,.25);
  font-weight:900;
  letter-spacing:.02em;
}
.brand-text{display:flex; flex-direction:column; line-height:1.05}
.brand-text .muted{color:var(--muted2); font-size:.85rem}

.nav-menu{
  display:flex;
  align-items:center;
  gap:.9rem;
}
.nav-menu a{
  color:var(--text);
  opacity:.9;
  font-weight:600;
  padding:.45rem .6rem;
  border-radius:12px;
}
.nav-menu a:hover{background:rgba(255,255,255,.07)}
.nav-menu a.active{background:rgba(118,183,255,.18); border:1px solid rgba(118,183,255,.25)}

.pill{
  border:1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
}

.nav-toggle{
  display:none;
  appearance:none;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  color:var(--text);
  border-radius:14px;
  padding:.55rem .7rem;
  cursor:pointer;
}
.nav-toggle:focus{outline:var(--focus); outline-offset:3px}

.hamburger{
  width:22px; height:2px; display:block;
  background: var(--text);
  position:relative;
}
.hamburger::before,
.hamburger::after{
  content:"";
  position:absolute; left:0;
  width:22px; height:2px;
  background: var(--text);
}
.hamburger::before{top:-7px}
.hamburger::after{top:7px}

/* Sections */
.section{padding:4.5rem 0}
.section.alt{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,0));
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.section-head{margin-bottom:1.5rem}
.section-head h2{margin:0 0 .4rem; font-size:2rem}
.muted{color:var(--muted)}
.small{font-size:.92rem}

/* Hero */
.hero{padding:4.2rem 0 2.2rem}
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .85fr;
  gap:1.5rem;
  align-items:start;
}
.kicker{
  display:inline-flex;
  gap:.5rem;
  align-items:center;
  padding:.35rem .7rem;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:var(--muted);
  font-weight:700;
  letter-spacing:.02em;
}
.hero-copy h1{
  margin:.9rem 0 .7rem;
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  line-height:1.06;
}
.lead{
  margin:0 0 1.2rem;
  color:var(--muted);
  font-size:1.05rem;
  max-width: 65ch;
}
.hero-cta{display:flex; flex-wrap:wrap; gap:.7rem; align-items:center}
.tag-row{display:flex; flex-wrap:wrap; gap:.5rem; margin-top:1.25rem}
.tag{
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  padding:.35rem .6rem;
  border-radius:999px;
  color:var(--muted);
  font-weight:700;
  font-size:.9rem;
}

/* Cards / Buttons */
.card{
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:1.25rem;
}
.card-title{margin:.1rem 0 1rem}
.divider{height:1px; background: rgba(255,255,255,.12); margin:1rem 0}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  border-radius: 14px;
  padding:.65rem 1rem;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color:var(--text);
  font-weight:800;
  cursor:pointer;
}
.btn:hover{background: rgba(255,255,255,.10)}
.btn:focus{outline:var(--focus); outline-offset:3px}

.btn.primary{
  background: linear-gradient(135deg, rgba(118,183,255,.95), rgba(58,160,255,.75));
  border-color: rgba(118,183,255,.35);
  color: #061028;
}
.btn.primary:hover{filter:brightness(1.03)}
.btn.ghost{
  background: transparent;
  border-color: rgba(255,255,255,.18);
}
.btn.subtle{
  background: rgba(0,0,0,.18);
  border-color: rgba(255,255,255,.12);
}

/* Layout helpers */
.grid-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:1.2rem;
}
.cards-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1.2rem;
}

.meta-list{list-style:none; padding:0; margin:0; display:grid; gap:.55rem}
.meta-label{color:var(--muted2); font-weight:800; display:inline-block; min-width:80px}

.checklist{margin:.6rem 0 0; padding-left:1.1rem; color:var(--muted)}
.checklist li{margin:.45rem 0}

.callout{
  margin-top:1.3rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1.1rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(118,183,255,.22);
  background: linear-gradient(135deg, rgba(118,183,255,.12), rgba(58,160,255,.05));
}
.callout-title{margin:.1rem 0 .2rem}

/* Projects card */
.project-card h3{margin:.2rem 0 .45rem}
.project-actions{display:flex; gap:.7rem; flex-wrap:wrap; margin-top:1rem}

/* Form */
.field{display:grid; gap:.35rem; margin:.8rem 0}
.field span{color:var(--muted2); font-weight:800}
input, textarea{
  width:100%;
  padding:.75rem .85rem;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.18);
  color: var(--text);
}
input:focus, textarea:focus{outline:var(--focus); outline-offset:3px}

/* Footer */
.footer{
  border-top: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  padding:1.2rem 0;
}
.footer-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
}
.footer-links{display:flex; gap:.9rem; flex-wrap:wrap}
.footer-links a{color:var(--muted); font-weight:700}
.footer-links a:hover{color:#fff}

/* Project pages hero image area */
.project-hero{
  padding:2.3rem 0 1.3rem;
}
.hero-banner{
  border-radius: var(--radius);
  border:1px solid rgba(255,255,255,.12);
  overflow:hidden;
  box-shadow: var(--shadow);
  background: linear-gradient(135deg, rgba(118,183,255,.35), rgba(58,160,255,.12));
}
.hero-banner svg{display:block; width:100%; height:auto}
.project-wrap{
  padding:2rem 0 4rem;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr}
  .cards-3{grid-template-columns: 1fr}
  .grid-2{grid-template-columns: 1fr}
}

@media (max-width: 820px){
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:absolute;
    left:1rem;
    right:1rem;
    top:74px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:.4rem;
    padding:.8rem;
    border-radius: var(--radius);
    background: rgba(5,11,26,.92);
    border: 1px solid rgba(255,255,255,.14);
    box-shadow: var(--shadow);
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:.75rem .8rem}
}