:root {
  --green: #39ff6a;
  --green-dim: #1c8f3d;
  --glow: rgba(57, 255, 106, 0.55);
  --metal-0: #0e0e10;
  --metal-1: #6e7278;
  --metal-2: #c8ccd2;
  --metal-3: #2a2d32;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  min-height: 100%;
  background: #050505;
  color: var(--green);
  font-family: "Share Tech Mono", "Courier New", ui-monospace, monospace;
}
a { color: inherit; text-decoration: none; }
.bezel {
  min-height: 100vh;
  padding: 14px;
  background:
    linear-gradient(180deg, #9aa0a8 0%, #3a3e44 8%, #1a1c20 18%, #0c0d10 50%, #1a1c20 82%, #3a3e44 92%, #8e949c 100%);
}
.screen {
  position: relative;
  min-height: calc(100vh - 28px);
  overflow: hidden;
  background: #000;
  box-shadow:
    inset 0 0 0 2px #111,
    inset 0 0 40px rgba(0, 0, 0, 0.65);
}
.tunnel {
  position: absolute;
  inset: -8% -6% -8% 18%;
  width: 92%;
  height: 116%;
  pointer-events: none;
}
.scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.18) 0 2px,
    transparent 2px 4px
  );
  mix-blend-mode: multiply;
}
.rail {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.4rem 0;
  color: #d5d8de;
  letter-spacing: 0.55em;
  font-size: 0.78rem;
}
.rail span { text-shadow: 0 1px 0 #000; }
.mix {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  letter-spacing: 0.12em;
  font-size: 0.68rem;
}
.mix button {
  background: transparent;
  color: var(--green);
  border: 1px solid rgba(57, 255, 106, 0.75);
  font: inherit;
  letter-spacing: 0.12em;
  padding: 0.28rem 0.45rem;
  cursor: pointer;
}
.mix button[aria-pressed="false"] {
  color: #6d7a72;
  border-color: #3c4a42;
}
.vol {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: #9dffb8;
}
.vol input {
  accent-color: #39ff6a;
  width: 5.2rem;
  cursor: pointer;
}
.stage {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(16rem, 34rem) 1fr;
  gap: 1rem;
  align-items: center;
  min-height: calc(100vh - 9rem);
  padding: 1rem 1.6rem 4.5rem;
}
.viewport {
  transform: perspective(1100px) rotateY(14deg) rotateX(2deg);
  transform-origin: left center;
  border: 1px solid rgba(57, 255, 106, 0.85);
  background:
    linear-gradient(180deg, rgba(0, 20, 8, 0.2), rgba(0, 0, 0, 0.55)),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(57, 255, 106, 0.04) 18px 19px);
  box-shadow:
    0 0 24px var(--glow),
    inset 0 0 30px rgba(57, 255, 106, 0.08);
  padding: 1.3rem 1.3rem 1.1rem;
}
.emblem {
  width: 74px;
  height: 74px;
  margin-bottom: 0.8rem;
  filter: drop-shadow(0 0 8px var(--glow));
}
h1 {
  margin: 0;
  font-family: Orbitron, "Arial Narrow", sans-serif;
  font-weight: 700;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  letter-spacing: 0.12em;
  line-height: 0.9;
  text-shadow:
    0 0 6px #fff,
    0 0 16px var(--green),
    0 0 36px var(--glow);
}
.sub {
  margin: 0.7rem 0 1.1rem;
  letter-spacing: 0.42em;
  font-size: 0.72rem;
  color: #b6ffc8;
}
.files { list-style: none; margin: 0; padding: 0; }
.files a {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  gap: 0.15rem 0.8rem;
  padding: 0.55rem 0.35rem;
  border-top: 1px solid rgba(57, 255, 106, 0.28);
}
.files li:last-child a { border-bottom: 1px solid rgba(57, 255, 106, 0.28); }
.files a:hover {
  background: rgba(57, 255, 106, 0.1);
  text-shadow: 0 0 8px var(--glow);
}
.tag {
  color: #7dffa4;
  letter-spacing: 0.14em;
  font-size: 0.68rem;
  padding-top: 0.28rem;
}
.files strong {
  font-family: Orbitron, sans-serif;
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
}
.files em {
  grid-column: 2;
  font-style: normal;
  color: #8fbf9c;
  letter-spacing: 0.04em;
  font-size: 0.82rem;
}
.floor {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  bottom: 0.7rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 0 1.1rem;
  pointer-events: none;
}
.tick {
  width: 0;
  height: 0;
  border-left: 16px solid transparent;
  border-right: 16px solid transparent;
  border-bottom: 18px solid #c5c9d0;
  filter: drop-shadow(0 1px 0 #2a2d32);
}
.tick.right { transform: scaleX(-1); }
.core {
  width: 34px;
  height: 34px;
  border: 2px solid #b7bcc4;
  background: radial-gradient(circle at 40% 35%, #f2f4f7, #8b9098 45%, #2c3036 72%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}
.sweep {
  position: absolute;
  left: 0;
  right: 0;
  height: 18%;
  top: -20%;
  background: linear-gradient(to bottom, transparent, rgba(57, 255, 106, 0.09), transparent);
  animation: sweep 7.5s linear infinite;
  pointer-events: none;
  z-index: 1;
}
@keyframes sweep { to { top: 110%; } }
.viewport { animation: lift 1.1s ease both; }
@keyframes lift {
  from { opacity: 0; filter: brightness(2.2); transform: perspective(1100px) rotateY(14deg) translateY(16px); }
  to { opacity: 1; filter: none; transform: perspective(1100px) rotateY(14deg); }
}
.files li {
  opacity: 0;
  transform: translateX(-14px);
}
.files li.show {
  opacity: 1;
  transform: none;
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.gate { display: grid; gap: 0.85rem; margin-top: 0.4rem; }
.gate label {
  display: grid;
  gap: 0.3rem;
  letter-spacing: 0.28em;
  font-size: 0.68rem;
  color: #9dffb8;
}
.gate input {
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(57, 255, 106, 0.7);
  color: #eaffe8;
  font: inherit;
  letter-spacing: 0.12em;
  padding: 0.55rem 0.6rem;
  outline: none;
}
.gate input:focus { box-shadow: 0 0 12px var(--glow); }
.gate button {
  justify-self: start;
  margin-top: 0.3rem;
  background: transparent;
  color: var(--green);
  border: 1px solid var(--green);
  font-family: Orbitron, sans-serif;
  letter-spacing: 0.22em;
  padding: 0.65rem 1.1rem;
  cursor: pointer;
}
.gate button:hover { background: var(--green); color: #04140a; }
.status { min-height: 1.2em; letter-spacing: 0.16em; font-size: 0.75rem; }
.shake { animation: shake 0.38s linear; }
@keyframes shake {
  20% { transform: perspective(1100px) rotateY(14deg) translateX(-8px); }
  40% { transform: perspective(1100px) rotateY(14deg) translateX(8px); }
  60% { transform: perspective(1100px) rotateY(14deg) translateX(-5px); }
  80% { transform: perspective(1100px) rotateY(14deg) translateX(4px); }
  100% { transform: perspective(1100px) rotateY(14deg); }
}
@media (max-width: 800px) {
  .viewport, .shake { animation-name: none; }
  @keyframes lift { from { opacity: 0; } to { opacity: 1; } }
  .viewport { animation: lift 0.8s ease both; }

  .rail { letter-spacing: 0.28em; font-size: 0.68rem; }
  .stage { grid-template-columns: 1fr; min-height: auto; padding-bottom: 4rem; }
  .viewport { transform: none; }
  .tunnel { inset: auto 0 0 0; height: 55%; width: 100%; }
}