:root{
      --bg: #0b0c10;
      --card: rgba(255,255,255,0.06);
      --card2: rgba(255,255,255,0.08);
      --text: rgba(255,255,255,0.92);
      --muted: rgba(255,255,255,0.70);
      --muted2: rgba(255,255,255,0.55);
      --line: rgba(255,255,255,0.10);
      --brand: #6ee7ff;
      --brand2:#a78bfa;
      --shadow: 0 20px 60px rgba(0,0,0,0.55);
      --radius: 0px;
      --radius2: 0px;
      --max: 1120px;
      --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      --sans: "Times New Roman", Times, serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: var(--sans);
      color: var(--text);
  background:
    /* Image layer (4K) + gentle dark overlay for readability */
    linear-gradient(180deg, rgba(11,12,16,0.52), rgba(11,12,16,0.72)),
    url("../assets/backgrounds/cortex_bg_02_4k.webp") center/cover no-repeat fixed,
    radial-gradient(1000px 600px at 20% -10%, rgba(110,231,255,0.18), transparent 60%),
    radial-gradient(900px 600px at 90% 0%, rgba(167,139,250,0.16), transparent 60%),
    radial-gradient(700px 500px at 60% 90%, rgba(110,231,255,0.10), transparent 55%),
    var(--bg);
min-height:100vh;
      line-height:1.55;
    }

    a{color:inherit; text-decoration:none}
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
      outline: 2px solid rgba(110,231,255,0.8);
      outline-offset: 3px;
      border-radius: 10px;
    }

    .container{max-width: var(--max); margin:0 auto; padding: 0 18px;}

    /* Top nav */
    .nav{
      position: sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(12px);
      background: rgba(11,12,16,0.65);
      border-bottom: 1px solid var(--line);
    }
    .nav-inner{display:flex; align-items:center; justify-content:space-between; padding: 14px 0; gap: 12px;}

    .brand{
      display:flex;
      align-items:center;
      gap: 10px;
      min-width: 180px;
    }
    .logo{
      width: 56px; height: 56px;
      border-radius: 18px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.12);
      box-shadow: 0 10px 30px rgba(0,0,0,0.35);
      overflow:hidden;
      flex: 0 0 auto;
    }
    .logo img{
      width: 100%; height: 100%;
      display:block;
      object-fit: cover;
    }
    .brand-title{display:flex; flex-direction:column; line-height:1.1}
    .brand-title strong{font-size: 14px; letter-spacing:0.6px}
    .brand-title span{font-size: 12px; color: var(--muted2)}

    .nav-links{display:flex; align-items:center; gap: 14px;}
    .nav-links a{font-size: 13px; color: var(--muted); padding: 8px 10px; border-radius: 12px; border:1px solid transparent}
    .nav-links a:hover{color: var(--text); border-color: rgba(255,255,255,0.12); background: rgba(255,255,255,0.04)}

    .cta{display:flex; align-items:center; gap: 10px;}
    .btn{
      border: 1px solid rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.06);
      color: var(--text);
      padding: 10px 12px;
      border-radius: 14px;
      font-weight: 600;
      font-size: 13px;
      cursor:pointer;
      transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
    }
    .btn:hover{transform: translateY(-1px); background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.20)}
    .btn.primary{
      border-color: rgba(110,231,255,0.35);
      background: linear-gradient(135deg, rgba(110,231,255,0.20), rgba(167,139,250,0.15));
    }

    .hamburger{display:none}

    /* Mobile menu */
    .mobile-menu{display:none; padding: 12px 0 18px;}
    .mobile-menu a{display:block; padding: 10px 12px; color: var(--muted); border-radius: 14px; border:1px solid transparent}
    .mobile-menu a:hover{color: var(--text); background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12)}

    /* Hero */
    .hero{padding: 54px 0 26px;}

    .hero-card > *{ position: relative; z-index: 1; }
    .hero-card{
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding: 28px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:-120px -180px auto auto;
      width: 420px; height: 420px;
      background: radial-gradient(circle at 40% 40%, rgba(110,231,255,0.22), transparent 60%),
                  radial-gradient(circle at 55% 45%, rgba(167,139,250,0.18), transparent 62%);
      transform: rotate(12deg);
      pointer-events:none;
    }

    .eyebrow{font-family: var(--mono); color: rgba(110,231,255,0.92); font-size: 12px; letter-spacing:0.8px; text-transform:uppercase}
    h1{margin: 10px 0 10px; font-size: 40px; line-height:1.08; letter-spacing:-0.6px}
    .sub{margin: 0 0 18px; color: var(--muted); font-size: 15px; max-width: 70ch;}

    .pill-row{display:flex; flex-wrap:wrap; gap: 8px; margin: 16px 0 22px;}
    .pill{
      font-family: var(--mono);
      font-size: 12px;
      color: rgba(255,255,255,0.78);
      border:1px solid rgba(255,255,255,0.12);
      background: rgba(255,255,255,0.04);
      padding: 7px 10px;
      border-radius: 999px;
      display:inline-flex;
      align-items:center;
      cursor:pointer;
      transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
    }
    .pill:hover{
      border-color: rgba(255,255,255,0.20);
      background: rgba(255,255,255,0.07);
      transform: translateY(-1px);
    }

    .hero-actions{display:flex; gap: 10px; flex-wrap:wrap}

    /* Sections */
    section{padding: 34px 0;}
    .section-head{display:flex; align-items:flex-end; justify-content:space-between; gap: 12px; margin-bottom: 14px;}
    .section-head h2{margin:0; font-size: 20px; letter-spacing:-0.2px}
    .section-head p{margin:0; color: var(--muted); font-size: 13px; max-width: 66ch}

    .grid{display:grid; grid-template-columns: repeat(12, 1fr); gap: 14px;}
    .card{
      border:1px solid var(--line);
      background: rgba(255,255,255,0.05);
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: 0 12px 34px rgba(0,0,0,0.42);
    }

    .card h3{margin:0 0 6px; font-size: 15px}
    .card p{margin:0; color: var(--muted); font-size: 13px}

    .card .meta{margin-top: 12px; display:flex; gap: 8px; flex-wrap:wrap}
    .tag{font-family: var(--mono); font-size: 11px; color: rgba(255,255,255,0.72); border:1px solid rgba(255,255,255,0.12); background: rgba(255,255,255,0.04); padding: 6px 8px; border-radius: 999px;}

    .span-4{grid-column: span 4;}
    .span-6{grid-column: span 6;}
    .span-12{grid-column: span 12;}

    /* Details */
    details{border:1px solid rgba(255,255,255,0.10); background: rgba(255,255,255,0.04); border-radius: 16px; padding: 12px 14px;}
    summary{cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; gap: 10px; font-weight: 700; font-size: 13px;}
    summary::-webkit-details-marker{display:none}
    .details-body{margin-top: 10px; color: var(--muted); font-size: 13px}
    .details-body ul{margin: 10px 0 0 18px}

    .footer{padding: 26px 0 44px; border-top: 1px solid var(--line); color: var(--muted2); font-size: 12px}
    .footer a{color: var(--muted)}
    .footer a:hover{color: var(--text)}
    .foot-row{display:flex; flex-wrap:wrap; gap: 12px; align-items:center; justify-content:space-between}

    /* Responsive */
    @media (max-width: 920px){
      h1{font-size: 34px}
      .span-4,.span-6{grid-column: span 12;}
    }
    @media (max-width: 720px){
      .nav-links{display:none}
      .hamburger{display:inline-flex}
      .mobile-menu{display:none}
      .mobile-menu.open{display:block}
      .brand{min-width: auto}
      h1{font-size: 30px}
    }

    /* Reduce motion */
    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto}
      .btn, .pill{transition:none}
    }



/* === Additional portfolio layouts (from SmartNudge / subpages) === */
/* Hero */
    .hero{padding: 54px 0 26px;}
    .hero-grid{display:grid; grid-template-columns: 1.3fr 0.7fr; gap: 18px; align-items:stretch;}

    .hero-card{
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.03));
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding: 28px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:-120px -180px auto auto;
      width: 420px; height: 420px;
      background: radial-gradient(circle at 40% 40%, rgba(110,231,255,0.22), transparent 60%),
                  radial-gradient(circle at 55% 45%, rgba(167,139,250,0.18), transparent 62%);
      transform: rotate(12deg);
      pointer-events:none;
    }

    .eyebrow{font-family: var(--mono); color: rgba(110,231,255,0.92); font-size: 12px; letter-spacing:0.8px; text-transform:uppercase}
    h1{margin: 10px 0 10px; font-size: 40px; line-height:1.08; letter-spacing:-0.6px}
    .sub{margin: 0 0 18px; color: var(--muted); font-size: 15px; max-width: 62ch;}

    .pill-row{display:flex; flex-wrap:wrap; gap: 8px; margin: 16px 0 22px;}
    .pill{font-family: var(--mono); font-size: 12px; color: rgba(255,255,255,0.78); border:1px solid rgba(255,255,255,0.12); background: rgba(255,255,255,0.04); padding: 7px 10px; border-radius: 999px;}

    .hero-actions{display:flex; gap: 10px; flex-wrap:wrap}

    .side-card{
      border: 1px solid var(--line);
      background: rgba(255,255,255,0.05);
      border-radius: var(--radius2);
      padding: 20px;
      box-shadow: 0 16px 44px rgba(0,0,0,0.45);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap: 14px;
    }
    .side-card h3{margin:0; font-size: 14px; letter-spacing:0.2px}
    .side-card p{margin: 6px 0 0; color: var(--muted); font-size: 13px}

    .kpi{display:grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px;}
    .kpi .tile{border:1px solid rgba(255,255,255,0.10); background: rgba(255,255,255,0.04); padding: 12px; border-radius: 16px;}
    .kpi .tile strong{display:block; font-size: 14px}
    .kpi .tile span{color: var(--muted2); font-size: 12px}

.pill-row{display:flex; flex-wrap:wrap; gap: 8px; margin: 16px 0 22px;}
    .pill{font-family: var(--mono); font-size: 12px; color: rgba(255,255,255,0.78); border:1px solid rgba(255,255,255,0.12); background: rgba(255,255,255,0.04); padding: 7px 10px; border-radius: 999px;}

.hero-grid{display:grid; grid-template-columns: 1.3fr 0.7fr; gap: 18px; align-items:stretch;}

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

.side-card{
      border: 1px solid var(--line);
      background: rgba(255,255,255,0.05);
      border-radius: var(--radius2);
      padding: 20px;
      box-shadow: 0 16px 44px rgba(0,0,0,0.45);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap: 14px;
    }

.kpi{display:grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px;}

.kpi .tile{border:1px solid rgba(255,255,255,0.10); background: rgba(255,255,255,0.04); padding: 12px; border-radius: 16px;}

.split{display:grid; grid-template-columns: 1fr 1fr; gap: 14px;}

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

.span-5{grid-column: span 5;}

.span-7{grid-column: span 7;}

.span-8{grid-column: span 8;}

.span-8{grid-column: span 12;}

.shot{
      width: 100%;
      height: auto;
      display: block;
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,0.10);
      box-shadow: 0 12px 34px rgba(0,0,0,0.35);
      background: rgba(0,0,0,0.25);
    }

figcaption{margin-top: 8px; color: var(--muted2); font-size: 12px}

@media (max-width: 920px){
      .hero-grid{grid-template-columns: 1fr;}
      h1{font-size: 34px}
      .split{grid-template-columns: 1fr;}
      .span-4,.span-5,.span-6,.span-7,.span-8{grid-column: span 12;}
    }

/* === Page-specific safe overrides for shared portfolio stylesheet === */
.hero-grid .sub{max-width: 62ch;}

/* SmartNudge pills are non-links; match original pill styling and keep them static on hover */
div.pill{
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.78);
  border:1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  padding: 7px 10px;
  border-radius: 999px;
}
div.pill:hover{
  transform:none;
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.12);
}


/* ===== Square / rectangular theme override ===== */
.btn,
.pill,
.tag,
.card,
.hero-card,
.side-card,
.kpi .tile,
.logo,
input,
textarea,
details,
.nav-links a,
.mobile-menu a {
  border-radius: 0 !important;
}

/* Safari/iOS: prefixed backdrop blur */
.nav{ -webkit-backdrop-filter: blur(12px); }

/* Ensure menu actually becomes visible when JS toggles .open */
.mobile-menu.open{ display:block !important; }
.mobile-menu{ position:relative; z-index:60; }

/* Prevent 3-line CTA button wrapping on narrow mobiles */
@media (max-width: 520px){
  .nav .cta{gap:8px;}
  .nav .cta .btn{
    flex:0 0 auto;
    text-align:center;
    line-height:1.15;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: normal;
    hyphens:none;
  }
  .nav .cta a.btn[href$="#portfolio"],
  .nav .cta a.btn[href$="/#portfolio"]{
    width: 92px;
    max-width: 92px;
  }
  .nav .cta a.btn.primary[href$="#contact"],
  .nav .cta a.btn.primary[href$="/#contact"]{
    width: 110px;
    max-width: 110px;
  }
  .nav .cta .hamburger{
    width:46px;
    min-width:46px;
    padding-left:0;
    padding-right:0;
  }
}

/* iOS/Safari can rasterize fixed backgrounds at lower resolution; scroll is sharper on mobile */
@media (max-width: 720px){
  body{background-attachment: scroll, scroll, scroll, scroll, scroll;}
}

/* Prefer AVIF where supported (fallback is WebP in the main body background) */
@supports (background-image: image-set(url("x.webp") type("image/webp"))) {
  body {
    background:
      /* Image layer (4K) + gentle dark overlay for readability */
linear-gradient(180deg, rgba(11,12,16,0.52), rgba(11,12,16,0.72)),
      image-set(url("../assets/backgrounds/cortex_bg_02_4k.avif") type("image/avif"), url("../assets/backgrounds/cortex_bg_02_4k.webp") type("image/webp")) center/cover no-repeat fixed,
      radial-gradient(1000px 600px at 20% -10%, rgba(110,231,255,0.18), transparent 60%),
      radial-gradient(900px 600px at 90% 0%, rgba(167,139,250,0.16), transparent 60%),
      radial-gradient(700px 500px at 60% 90%, rgba(110,231,255,0.10), transparent 55%),
      var(--bg);
  }
}