/* ------------------------------------------------------------------ *
 * rajarajanvel.com — dark, technical, futuristic. One stylesheet.
 * ------------------------------------------------------------------ */
:root {
  --bg: #06080d;
  --bg-2: #0a0e16;
  --panel: rgba(255, 255, 255, 0.025);
  --panel-2: rgba(255, 255, 255, 0.04);
  --line: rgba(120, 160, 220, 0.15);
  --line-strong: rgba(120, 170, 230, 0.32);
  --text: #e2e8f3;
  --muted: #7e8aa2;
  --cyan: #35e0e0;
  --violet: #8b7bff;
  --radius: 14px;
  --maxw: 760px;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(1100px 560px at 72% -12%, rgba(53, 224, 224, 0.10), transparent 60%),
    radial-gradient(820px 520px at 8% 6%, rgba(139, 123, 255, 0.09), transparent 55%),
    var(--bg);
  min-height: 100vh;
}

/* faint technical grid, fading toward the bottom */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 160, 220, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 220, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---- nav ---- */
nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--line);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 64px; }
.mark {
  display: inline-flex; align-items: center; gap: 11px;
  text-decoration: none; color: var(--text);
  font-family: var(--font-mono); font-weight: 500; letter-spacing: 0.02em;
}
.mark .badge {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 14px; color: #04121a;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 0 18px rgba(53, 224, 224, 0.35);
}
.navlinks { display: flex; gap: 24px; }
.navlinks a {
  text-decoration: none; color: var(--muted);
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.1em;
  transition: color .15s ease, text-shadow .15s ease;
}
.navlinks a:hover, .navlinks a[aria-current="page"] {
  color: var(--cyan); text-shadow: 0 0 14px rgba(53, 224, 224, 0.45);
}

/* ---- type ---- */
.eyebrow {
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.22em;
  font-size: 12px; font-weight: 500; color: var(--cyan); margin: 0 0 16px;
}
.eyebrow::before { content: "// "; color: var(--violet); }
h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(38px, 7vw, 64px); line-height: 1.02; letter-spacing: -0.035em;
  margin: 0 0 18px;
}
.grad { background: linear-gradient(100deg, var(--cyan), var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { font-size: 24px; letter-spacing: -0.02em; font-weight: 600; margin: 0 0 12px; }
h3 { font-size: 17px; letter-spacing: -0.01em; font-weight: 600; margin: 0; }
p { margin: 0 0 18px; }
.lead { font-size: 20px; color: var(--muted); }
.muted { color: var(--muted); }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* blinking terminal caret */
.caret {
  display: inline-block; width: 0.6ch; height: 1.05em; margin-left: 2px;
  background: var(--cyan); vertical-align: -0.16em; box-shadow: 0 0 12px var(--cyan);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- sections ---- */
header.hero { padding: 92px 0 44px; }
header.hero.center-hero { text-align: center; padding: 140px 0 96px; }
header.hero.center-hero .lead { max-width: 600px; margin: 0 auto; }
section { padding: 40px 0; border-top: 1px solid var(--line); }
section:first-of-type { border-top: none; }
.row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 12px 20px; border-radius: 10px;
  color: var(--cyan); background: rgba(53, 224, 224, 0.06);
  border: 1px solid var(--line-strong);
  transition: box-shadow .18s ease, background .18s ease, transform .05s ease;
}
.btn:hover { text-decoration: none; background: rgba(53, 224, 224, 0.13); box-shadow: 0 0 24px rgba(53, 224, 224, 0.28); }
.btn:active { transform: translateY(1px); }
.btn.solid { background: linear-gradient(135deg, var(--cyan), var(--violet)); color: #04121a; border-color: transparent; }
.btn.solid:hover { filter: brightness(1.08); }

/* ---- cards (projects) ---- */
.cards { display: grid; gap: 16px; }
.card {
  position: relative; display: block; padding: 24px; color: inherit;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  overflow: hidden;
  transition: border-color .18s ease, transform .12s ease, box-shadow .18s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
  opacity: 0; transition: opacity .2s ease;
}
.card:hover {
  text-decoration: none; transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.5), 0 0 32px rgba(53, 224, 224, 0.08);
}
.card:hover::before { opacity: 1; }
.card .top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card .arrow { color: var(--muted); font-family: var(--font-mono); transition: transform .15s ease, color .15s ease; }
.card:hover .arrow { color: var(--cyan); transform: translate(3px, -3px); }
.card p { margin: 10px 0 0; color: var(--muted); font-size: 15.5px; }
.tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 16px; }
.tag {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: var(--muted);
  border: 1px solid var(--line); border-radius: 6px; padding: 3px 9px; background: rgba(0,0,0,0.2);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.status {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--cyan);
  border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px 11px;
  background: rgba(53, 224, 224, 0.06);
}

/* ---- gaming grid ---- */
.games { display: grid; grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); gap: 16px; }
.game {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 13px;
  padding: 22px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  transition: transform .12s ease, border-color .18s ease, box-shadow .18s ease;
}
.game:hover {
  transform: translateY(-4px); border-color: var(--line-strong);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5), 0 0 26px rgba(139, 123, 255, 0.1);
}
.emblem, .thumb {
  width: 88px; height: 88px; border-radius: 20px; display: block;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
}
.thumb { object-fit: cover; border: 1px solid var(--line); }  /* for swapped-in photos */
.game h3 { font-size: 15px; }
.game .main {
  font-family: var(--font-mono); font-size: 11px; color: var(--cyan);
  text-transform: uppercase; letter-spacing: 0.07em; margin: 0;
}

/* ---- callout (Extra Life etc.) ---- */
.callout {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 20px 22px; border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: linear-gradient(100deg, rgba(53, 224, 224, 0.08), rgba(139, 123, 255, 0.08));
}
.callout .kick { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--violet); margin: 0 0 4px; }
.callout .msg { margin: 0; font-weight: 500; }
.callout .msg small { display: block; color: var(--muted); font-weight: 400; font-size: 14px; margin-top: 2px; }

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); padding: 34px 0 60px; margin-top: 20px; color: var(--muted); }
footer .row { justify-content: space-between; align-items: center; }
footer, footer a { font-family: var(--font-mono); font-size: 13px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--cyan); }

.foot-note { color: var(--muted); font-size: 13px; margin-top: 24px; font-family: var(--font-mono); }

@media (max-width: 520px) {
  .navlinks { gap: 15px; }
  header.hero { padding: 64px 0 32px; }
  header.hero.center-hero { padding: 96px 0 64px; }
}