:root{
    --bg:#0b0e14;--panel:#111520;--text:#e8eefc;--muted:#9fb0d0;
    --brand:#6aa6ff;--brand-ink:#0b2447;--radius:16px;--shadow:0 10px 30px rgba(0,0,0,.35);
  }
  *{box-sizing:border-box;}
  body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;
    color:var(--text);background:radial-gradient(1200px 800px at 10% -10%,rgba(106,166,255,.15),transparent),var(--bg);}
  .container{width:min(1100px,92%);margin:auto;}
  .pad-y{padding:4rem 0 3rem;}
  .section-title{font-size:1.5rem;margin-bottom:1rem;}
  .site-header{position:sticky;top:0;backdrop-filter:blur(8px);
    background:rgba(11,14,20,.6);border-bottom:1px solid rgba(255,255,255,.06);}
  .site-header .container{display:flex;justify-content:space-between;align-items:center;padding:.9rem 0;}
  .brand{font-weight:700;text-decoration:none;color:var(--text);}
  .nav{display:flex;gap:.8rem;align-items:center;}
  .nav a{color:var(--text);text-decoration:none;opacity:.85;padding:.4rem .65rem;border-radius:10px;}
  .hero{padding:6rem 0 3rem;}
  .hero h1{font-size:clamp(1.9rem,3vw+1rem,3rem);line-height:1.15;margin-bottom:1rem;}
  .lede{color:var(--muted);max-width:60ch;}
  .cta-row{display:flex;gap:.75rem;margin-top:1rem;flex-wrap:wrap;}
  .grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));}
  .card{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
    border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow);}
  .banner{background:linear-gradient(90deg,rgba(106,166,255,.15),rgba(71,255,214,.12));
    border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);}
  .banner-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 0;}
  .site-footer{margin-top:3rem;border-top:1px solid rgba(255,255,255,.08);}
  .footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0;}
  .footer-nav{display:flex;gap:.75rem;}
  .footer-nav a{color:var(--muted);text-decoration:none;}
  .btn{display:inline-block;padding:.6rem .9rem;border-radius:10px;text-decoration:none;border:1px solid rgba(255,255,255,.14);}
  .btn-primary{background:var(--brand);color:var(--brand-ink);font-weight:700;border-color:transparent;}
  .form{margin-top:1rem;}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
  .form label{display:flex;flex-direction:column;gap:.4rem;color:var(--muted);}
  .form input,.form textarea{width:100%;background:var(--panel);border:1px solid rgba(255,255,255,.12);
    color:var(--text);padding:.7rem .8rem;border-radius:10px;}
  .form input:focus,.form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(106,166,255,.15);}
  .form .full{grid-column:1/-1;}
  .form-note{color:var(--muted);font-size:.9rem;margin-top:.6rem;}
  @media(max-width:720px){.footer-inner,.banner-inner{flex-direction:column;align-items:flex-start;}
    .form-grid{grid-template-columns:1fr;}}
/* ===============================
   ComplexT Placeholder Styles
   Formatting pass: spacing + comments
   (No functional changes)
   =============================== */

/* ===== Base / Tokens ===== */
:root {
  --bg: #0b0e14;          /* deep slate */
  --panel: #111520;       /* card bg */
  --text: #e8eefc;        /* near-white */
  --muted: #9fb0d0;       /* soft gray-blue */
  --brand: #6aa6ff;       /* primary */
  --brand-ink: #0b2447;   /* dark accent for text on brand */
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu;
  color: var(--text);
  background:
    radial-gradient(1200px 800px at 10% -10%, rgba(106, 166, 255, 0.15), transparent),
    var(--bg);
}

/* ===== Layout Utilities ===== */
.container {
  width: min(1100px, 92%);
  margin: auto;
}

.pad-y {
  padding: 4rem 0 3rem;
}

.section-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(11, 14, 20, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
}

.nav {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.85;
  padding: 0.4rem 0.65rem;
  border-radius: 10px;
}

/* ==== Mobile nav (hamburger) support ==== */
.nav { position: relative; }
.nav-toggle {
  display: none; /* shown on small screens */
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 10px;
  font: inherit;
  color: var(--text);
  padding: .45rem .6rem;
  cursor: pointer;
}
.nav-toggle:focus-visible { outline: 2px solid var(--brand); }

/* Wrapper for links, so we can collapse it on small screens */
.nav-links { display: flex; gap: .8rem; align-items: center; }

/* When nav is open (toggled via JS), show the menu */
.nav.open .nav-links { display: flex; }

/* ===== Hero ===== */
.hero {
  padding: 6rem 0 3rem;
}

.hero h1 {
  font-size: clamp(1.9rem, 3vw + 1rem, 3rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.lede {
  color: var(--muted);
  max-width: 60ch;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* ===== Cards & Grids ===== */
.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}

/* ===== Banner ===== */
.banner {
  background: linear-gradient(90deg, rgba(106, 166, 255, 0.15), rgba(71, 255, 214, 0.12));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.banner-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 0;
}

/* ===== Footer ===== */
.site-footer {
  margin-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-nav {
  display: flex;
  gap: 0.75rem;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.btn-primary {
  background: var(--brand);
  color: var(--brand-ink);
  font-weight: 700;
  border-color: transparent;
}

/* ===== Forms ===== */
.form {
  margin-top: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  color: var(--muted);
}

.form input,
.form textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
}

.form input:focus,
.form textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(106, 166, 255, 0.15);
}

.form .full {
  grid-column: 1 / -1;
}

.form-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.6rem;
}

/* ===== Glassmorphism & Extended Homepage ===== */

/* --- Homepage spacing adjustments --- */
.features {
  margin-bottom: 3rem; /* adds clear space under the cards above the banner */
}

.banner {
  margin-top: 3rem;  /* push the banner away from the previous grid */
  margin-bottom: 3rem; /* maintain even spacing before the next section */
}

.card {
  padding: 1.25rem 1.5rem; /* give cards a more balanced feel */
}

/* Elevate interactive elements with smooth transitions */
.card, .btn, .nav a { transition: all .2s ease; }

/* Glassy cards (override previous .card styles) */
.card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
}
.card:hover { transform: translateY(-1px); box-shadow: 0 12px 40px rgba(0,0,0,.45); }

/* Nav current/hover states for glass look */
.nav a[aria-current="page"],
.nav a:focus-visible {
  outline: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.04);
}
.nav a:hover { background: rgba(255,255,255,.04); }

/* Buttons */
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

/* Section titles: research vibe */
.section-title { font-size: clamp(1.4rem, 1rem + 1.8vw, 2rem); letter-spacing: .2px; }

/* Section separators + subtle backgrounds */
section.container.pad-y {
  position: relative;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

#web-dev {
  background: radial-gradient(900px 400px at -10% 10%, rgba(106,166,255,.08), transparent);
}
#coming-soon {
  background: radial-gradient(1000px 500px at 110% 0%, rgba(71,255,214,.06), transparent);
}
#research {
  background: linear-gradient(180deg, rgba(255,255,255,.04), transparent);
}
#compute {
  background: linear-gradient(180deg, transparent, rgba(255,255,255,.04));
}
#docs {
  background: radial-gradient(800px 400px at 50% -20%, rgba(255,255,255,.06), transparent);
}
#faq {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
}

/* Code blocks (Docs preview) */
pre { margin: 0; }
pre code {
  display: block;
  padding: 1rem;
  background: rgba(16, 22, 33, 0.7);
  border: 1px solid rgba(255,255,255,.12);
  border-left: 3px solid var(--brand);
  border-radius: 12px;
  overflow-x: auto;
  font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: #e6edf3;
}
code {
  padding: .15rem .35rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: .4rem;
}
pre code::-webkit-scrollbar { height: 8px; }
pre code::-webkit-scrollbar-thumb { background: rgba(255,255,255,.2); border-radius: 4px; }

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .footer-inner,
  .banner-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  /* Mobile nav behavior */
  .site-header .container { align-items: flex-start; }
  .nav { flex-direction: column; align-items: stretch; width: 100%; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links {
    display: none; /* hidden until opened */
    position: absolute;
    top: 100%;
    right: 0;
    width: min(92vw, 320px);
    flex-direction: column;
    gap: .25rem;
    padding: .5rem;
    background: rgba(11,14,20,.9);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,.5);
    backdrop-filter: blur(10px);
  }
  .nav-links a { width: 100%; }
  .nav.open .nav-links { display: flex; }
}
/* ========== Finish Pass: Nav polish, accessibility & small fixes ========== */
/* Keep header above content and mobile menu above everything */
.site-header { z-index: 1000; }
.nav-links { z-index: 1001; }

/* Ensure a stable header height to avoid layout shift */
.site-header { min-height: 56px; }

/* Bigger tap target for the hamburger (meets 44x44 guideline) */
.nav-toggle {
  min-width: 44px;
  min-height: 44px;
  line-height: 1;
}
.nav-toggle:active { transform: translateY(1px); }

/* Clearer current/hover states on links inside menus */
.nav-links a[aria-current="page"] {
  outline: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.04);
}
.nav-links a:hover { background: rgba(255,255,255,.04); }

/* Utility: screen-reader-only text */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 1px, 1px);
  white-space: nowrap; border: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* iOS safe-area padding so the menu doesn't touch the notch/sides */
@supports (padding: max(0px)) {
  .site-header { padding-left: max(0px, env(safe-area-inset-left)); padding-right: max(0px, env(safe-area-inset-right)); }
  .nav-links { padding-left: max(.5rem, env(safe-area-inset-left)); padding-right: max(.5rem, env(safe-area-inset-right)); }
}

/* Optional: prevent page scroll when menu is open (JS adds `no-scroll` on body) */
body.no-scroll { overflow: hidden; }

/* Optional: subtle open-state shadow */
.nav.open .nav-links { box-shadow: 0 16px 48px rgba(0,0,0,.5); }

/* ========== Accessibility & Polish Additions (global) ========== */
/* Keep visited link color consistent in nav/footer */
.nav a:link,
.nav a:visited {
  color: var(--text);
  text-decoration: none;
}
.footer-nav a:link,
.footer-nav a:visited {
  color: var(--muted);
  text-decoration: none;
}

/* Strong, consistent keyboard focus ring for interactive elements */
:where(a, button, [role="button"], input, textarea, select):focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(106,166,255,.15);
}

/* Responsive media defaults */
img, video, canvas, svg { max-width: 100%; height: auto; display: block; }
iframe { max-width: 100%; border-radius: 10px; }

/* File input styling (for contact form uploads) */
input[type="file"] {
  width: 100%;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
  padding: .5rem .6rem;
  border-radius: 10px;
}
input[type="file"]::file-selector-button {
  margin-right: .6rem;
  padding: .5rem .8rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--text);
  cursor: pointer;
}
input[type="file"]:focus-visible { border-color: var(--brand); }

/* Generic progress bar (used by builder) */
.progress { height: 6px; background: rgba(255,255,255,.08); border-radius: 6px; overflow: hidden; }
.progress > span { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--brand), #9b6bff); transition: width .2s ease; }

/* Scrollable area helper */
.scroll-area { max-height: 40vh; overflow: auto; overscroll-behavior: contain; }

/* Tighter hover/active affordances */
.nav a:hover { background: rgba(255,255,255,.04); }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }