/* ============================================================
   NULL RESEARCH — 16-bit console portfolio
   ============================================================ */

:root {
  --bg:        #100d24;
  --bg-2:      #161232;
  --panel:     #1d1840;
  --panel-2:   #251f4f;
  --ink:       #f1efff;
  --ink-dim:   #cbc7f0;
  --muted:     #a09bd6;
  --line-hi:   #4a4290;   /* bevel highlight */
  --line-lo:   #0a0818;   /* bevel shadow    */
  --cyan:      #43e0d0;
  --magenta:   #ff5fa2;
  --yellow:    #ffd23f;
  --accent:    var(--cyan);

  --px:        4px;       /* base pixel unit */
  --font-pix:  'Press Start 2P', monospace;
  --font-body: 'VT323', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 50% -10%, #241c52 0%, var(--bg) 60%) fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 24px;
  line-height: 1.5;
  letter-spacing: .4px;
  -webkit-font-smoothing: none;
  image-rendering: pixelated;
  overflow-x: hidden;
}

/* ---- decorative overlays ---- */
.crt {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0,0,0,0) 0px,
      rgba(0,0,0,0) 2px,
      rgba(0,0,0,.18) 3px,
      rgba(0,0,0,0) 4px
    );
  mix-blend-mode: multiply;
  opacity: .55;
}
.crt::after {  /* vignette */
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.45) 100%);
}
.stars {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .5;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #fff 50%, transparent),
    radial-gradient(1px 1px at 70% 70%, #b9b3ff 50%, transparent),
    radial-gradient(1px 1px at 40% 80%, #fff 50%, transparent),
    radial-gradient(1px 1px at 85% 20%, #8ad9ff 50%, transparent),
    radial-gradient(1px 1px at 55% 50%, #fff 50%, transparent),
    radial-gradient(1px 1px at 10% 60%, #ffb3e6 50%, transparent),
    radial-gradient(1px 1px at 92% 88%, #fff 50%, transparent);
  background-repeat: no-repeat;
}

/* ---- layout shell ---- */
.screen {
  position: relative; z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(16px, 4vw, 48px) clamp(14px, 4vw, 32px) 64px;
  display: flex; flex-direction: column;
  gap: clamp(20px, 4vw, 36px);
}

/* ============================================================
   PANELS  (beveled console windows)
   ============================================================ */
.panel {
  background: var(--panel);
  border: var(--px) solid var(--line-lo);
  box-shadow:
    inset calc(var(--px) * -1) calc(var(--px) * -1) 0 0 var(--line-lo),
    inset var(--px) var(--px) 0 0 var(--line-hi),
    0 0 0 var(--px) #000,
    0 calc(var(--px) * 2) 0 var(--px) rgba(0,0,0,.5);
  padding: 0;
}

.titlebar {
  display: flex; align-items: center; gap: 10px;
  background: linear-gradient(90deg, var(--cyan), #2bb8c9);
  color: #06212a;
  font-family: var(--font-pix);
  font-size: 9px;
  padding: 8px 10px;
  border-bottom: var(--px) solid var(--line-lo);
  text-shadow: 1px 1px 0 rgba(255,255,255,.35);
}
.titlebar .led {
  width: 10px; height: 10px; background: #06212a; border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(0,0,0,.25);
  animation: pulse 1.6s steps(2, jump-none) infinite;
}
.titlebar-text { flex: 1; }
.titlebar-btns { display: flex; gap: 6px; }
.titlebar-btns b { display:inline-block; width:16px; height:16px; line-height:16px; text-align:center; background:#0a3b46; color:#bdf6ff; font-weight:400; }

/* ---- header ---- */
.header-body { padding: clamp(22px, 5vw, 44px) clamp(20px,4vw,40px); text-align: center; }
.brandmark { display:flex; justify-content:center; margin-bottom: 18px; }
.mark {
  width: clamp(64px, 14vw, 104px); height: auto;
  color: var(--cyan);
  filter: drop-shadow(4px 4px 0 #155a63) drop-shadow(0 0 14px rgba(67,224,208,.35));
  animation: floaty 4s steps(8, jump-none) infinite alternate;
}
@keyframes floaty { from { transform: translateY(0) } to { transform: translateY(-6px) } }
.logo {
  font-family: var(--font-pix);
  margin: 0;
  line-height: 1.25;
  letter-spacing: 2px;
  font-size: clamp(26px, 7vw, 56px);
}
.logo-null   { color: var(--ink); text-shadow: 3px 3px 0 var(--magenta), 6px 6px 0 rgba(0,0,0,.4); }
.logo-research { color: var(--cyan); text-shadow: 3px 3px 0 #155a63, 6px 6px 0 rgba(0,0,0,.4); display:block; margin-top: .35em; }
.tagline { font-size: clamp(20px,3.4vw,28px); color: var(--yellow); margin: 1.4em 0 .2em; }
.subtag  { font-size: clamp(18px,3vw,24px); color: var(--ink-dim); margin: .2em 0 0; }

/* ---- section labels ---- */
.section-label {
  font-family: var(--font-pix);
  font-size: 12px;
  color: var(--magenta);
  letter-spacing: 1px;
  margin: 0 0 18px;
}
.section-label.center { text-align: center; color: var(--cyan); }

/* ---- about / generic panel text ---- */
.about, .contact-body { padding: clamp(22px,4vw,36px); }
.about p { margin: 0 0 14px; max-width: 70ch; }
.about p:last-child { margin-bottom: 0; }
strong { color: #fff; }
em { color: var(--cyan); font-style: normal; }
.muted { color: var(--muted); }
.small { font-size: 20px; }

/* ============================================================
   PROJECT GRID  (cartridges)
   ============================================================ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: clamp(14px, 2.4vw, 22px);
}
.cart {
  --accent: var(--cyan);
  display: flex; flex-direction: column;
  text-decoration: none; color: var(--ink);
  background: var(--panel-2);
  border: var(--px) solid var(--line-lo);
  box-shadow:
    inset calc(var(--px) * -1) calc(var(--px) * -1) 0 0 var(--line-lo),
    inset var(--px) var(--px) 0 0 var(--line-hi),
    0 0 0 2px #000;
  padding: 16px;
  position: relative;
  transition: transform .08s steps(2), box-shadow .08s steps(2);
}
.cart:hover, .cart:focus-visible {
  transform: translate(-2px, -3px);
  outline: none;
  box-shadow:
    inset calc(var(--px) * -1) calc(var(--px) * -1) 0 0 var(--line-lo),
    inset var(--px) var(--px) 0 0 var(--line-hi),
    0 0 0 2px #000,
    5px 7px 0 0 var(--accent);
}
.cart-top { display:flex; align-items:flex-start; justify-content:space-between; margin-bottom: 12px; }
.pix { width: 52px; height: 52px; }
/* real project icons (raster + svg) — keep them crisp, framed to match the console look */
img.pix {
  object-fit: cover;
  image-rendering: auto;
  border-radius: 10px;
}
/* emoji-based project icon (e.g. ScholarCV 🎓) on a warm academic tile */
.pix-emoji {
  display: flex; align-items: center; justify-content: center;
  background: #fdfbf7;
  border-radius: 10px;
  font-size: 44px; line-height: 1;
}
.tag {
  font-family: var(--font-pix); font-size: 8px; letter-spacing: 1px;
  color: #06212a; background: var(--accent);
  padding: 5px 6px; align-self: flex-start;
}
.cart-name {
  font-family: var(--font-pix); font-size: 14px; margin: 0 0 12px;
  color: #fff; text-shadow: 2px 2px 0 rgba(0,0,0,.5);
  border-bottom: 2px dashed var(--accent); padding-bottom: 12px;
}
.cart-desc { margin: 0 0 14px; color: var(--ink-dim); font-size: 22px; line-height: 1.5; flex: 1; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0 0 14px; }
.chips li {
  font-family: var(--font-pix); font-size: 8px; letter-spacing: .5px;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: 5px 6px;
  opacity: .9;
}
.cart-go { font-size: 22px; color: var(--accent); text-transform: lowercase; }
.cart:hover .cart-go { text-decoration: underline; }

.cart-cta { background: linear-gradient(160deg, var(--panel-2), #2a2208); }
.cart-cta .cart-name { color: var(--yellow); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact .titlebar { background: linear-gradient(90deg, var(--yellow), #e0a93a); color:#2a2008; }
.contact .titlebar .led { background:#2a2008; }
.contact .titlebar-btns b { background:#5c4708; color:#ffe9a8; }
.contact-body p { max-width: 64ch; margin: 0 0 16px; }
.decode-line { display:flex; align-items:center; gap: 10px; flex-wrap: wrap; font-size: 24px; }
.prompt { color: var(--cyan); font-weight: bold; }
.reveal-btn {
  font-family: var(--font-pix); font-size: 12px; letter-spacing: 1px;
  cursor: pointer;
  color: #06212a; background: var(--cyan);
  border: var(--px) solid var(--line-lo);
  box-shadow: inset calc(var(--px) * -1) calc(var(--px) * -1) 0 0 rgba(0,0,0,.35),
              inset var(--px) var(--px) 0 0 rgba(255,255,255,.4);
  padding: 12px 16px;
  transition: transform .06s steps(2);
}
.reveal-btn:hover { transform: translateY(-2px); }
.reveal-btn:active { transform: translateY(1px);
  box-shadow: inset var(--px) var(--px) 0 0 rgba(0,0,0,.35); }
.reveal-btn.revealed { background: var(--yellow); }
.reveal-btn a, a.mail-link { color: inherit; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { text-align:center; color: var(--muted); margin-top: 8px; }
.footer p { margin: 4px 0; }
.footer a { color: var(--cyan); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ---- generic links ---- */
a { color: var(--cyan); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes pulse { 0%,49% { opacity:1 } 50%,100% { opacity:.25 } }
.blink-soft { animation: blinkSoft 2s steps(2, jump-none) infinite; }
@keyframes blinkSoft { 0%,60% { opacity:1 } 61%,100% { opacity:.55 } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---- responsive ---- */
@media (max-width: 560px) {
  body { font-size: 20px; }
  .grid { grid-template-columns: 1fr; }
  .logo { letter-spacing: 1px; }
}