@font-face {
  font-family: "C64 Pro Mono";
  src: url("/fonts/C64_Pro_Mono-STYLE.woff2") format("woff2"),
       url("/fonts/C64_Pro_Mono-STYLE.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #80e3dc;
  --soft: #786eff;
  --deep: #3c2db6;
  --orange: #bd6426;
  --paper: #050710;
  --panel: #070b19;
  --muted: #7c7890;
  --label: #666476;
  --value: #b9b7c3;
  --error: #e27a43;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  min-height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 12%, rgba(58, 47, 164, .16), transparent 42%),
    #02040a;
  color: var(--ink);
  font-family: "C64 Pro Mono", "Courier New", monospace;
  font-size: 16px;
}

button, input, textarea { font: inherit; }

button { color: inherit; }

.hidden { display: none !important; }

.machine {
  position: relative;
  width: min(100vw, 1120px);
  height: min(100dvh, 760px);
  margin: max(0px, calc((100dvh - 760px) / 2)) auto 0;
  padding: 1.25rem clamp(.75rem, 2.5vw, 2rem) 1rem;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(8, 11, 28, .96), rgba(2, 4, 10, .98));
  border: 1px solid rgba(120, 110, 255, .2);
  box-shadow: 0 0 80px rgba(57, 42, 187, .14), inset 0 0 70px rgba(24, 31, 74, .22);
}

.machine::after {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 9;
  opacity: .18;
  background: repeating-linear-gradient(180deg, transparent 0 3px, rgba(104, 115, 255, .08) 3px 4px);
  mix-blend-mode: screen;
}

.machine-top,
.status-line,
.terminal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--soft);
  font-size: .88rem;
  letter-spacing: .08em;
}

.machine-top {
  height: 1.6rem;
  border-bottom: 1px solid rgba(120, 110, 255, .16);
}

.gate {
  position: absolute;
  inset: 4.2rem 1rem 1rem;
  display: grid;
  place-content: center;
  text-align: center;
}

.gate-mark {
  width: 6.3rem;
  height: 6.3rem;
  display: grid;
  place-items: center;
  margin: 0 auto 1.4rem;
  border: 2px solid var(--soft);
  color: var(--soft);
  font-size: 1.7rem;
  box-shadow: inset 0 0 24px rgba(120, 110, 255, .12), 0 0 24px rgba(120, 110, 255, .08);
}

.gate h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 400;
  letter-spacing: .18em;
}

.gate p {
  margin: .75rem 0 2.5rem;
  color: var(--orange);
  letter-spacing: .22em;
}

.gate form { width: min(32rem, 86vw); }

.gate label {
  display: block;
  margin-bottom: .65rem;
  color: var(--muted);
  text-align: left;
}

.gate-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  border: 1px solid rgba(128, 227, 220, .55);
  background: rgba(4, 11, 18, .75);
}

.gate-entry input {
  min-width: 0;
  padding: .9rem 1rem;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
}

.gate-entry button,
.terminal-form button,
.terminal-footer button,
.splash button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.gate-entry button {
  padding: .9rem 1rem;
  color: var(--orange);
  border-left: 1px solid rgba(128, 227, 220, .3);
}

.error {
  min-height: 1.5rem;
  margin-top: .8rem;
  color: var(--error);
  text-align: left;
}

.splash {
  position: absolute;
  inset: 3.4rem clamp(.4rem, 2vw, 1.5rem) 1rem;
  display: grid;
  place-content: center;
  outline: 0;
}

.splash canvas {
  display: block;
  width: min(100%, calc((100dvh - 9rem) * 1.6));
  height: auto;
  image-rendering: pixelated;
}

.splash button {
  margin: .5rem auto 0;
  padding: .8rem;
  color: var(--orange);
  letter-spacing: .08em;
  animation: pulse 1.4s steps(2, end) infinite;
}

@keyframes pulse { 50% { opacity: .45; } }

.terminal {
  height: calc(100% - 1.6rem);
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: .65rem;
  padding-top: .75rem;
}

.status-line {
  padding-bottom: .6rem;
  border-bottom: 1px solid rgba(120, 110, 255, .16);
}

#connection-status::before {
  content: "◆";
  margin-right: .55rem;
  color: var(--ink);
  font-size: .65em;
}

.terminal-output {
  overflow-y: auto;
  min-height: 0;
  padding: .3rem .1rem 1.2rem;
  scrollbar-color: var(--deep) transparent;
  scrollbar-width: thin;
}

.entry {
  margin: 0 0 1.15rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.48;
}

.entry.user { color: var(--orange); }
.entry.system { color: var(--soft); }
.entry.answer { color: var(--ink); }
.entry.error-message { color: var(--error); }
.entry.diagnostic { color: var(--value); }
.diagnostic .diagnostic-header { color: #f0eff7; }
.diagnostic .diagnostic-label { color: var(--label); }
.diagnostic .diagnostic-value { color: var(--value); }

.prompt-prefix { margin-right: .75ch; color: var(--orange); }

.terminal-form {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: .6rem;
  padding: .75rem 0;
  border-top: 1px solid rgba(128, 227, 220, .2);
  border-bottom: 1px solid rgba(128, 227, 220, .12);
}

.terminal-form label { padding-top: .6rem; color: var(--orange); }

.terminal-form textarea {
  width: 100%;
  max-height: 8rem;
  resize: none;
  overflow-y: auto;
  padding: .55rem .2rem;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  line-height: 1.4;
  caret-color: var(--orange);
}

.terminal-form button {
  min-width: 2.6rem;
  padding: .48rem .2rem;
  color: var(--orange);
  font-size: 1.25rem;
}

.terminal-footer { padding-top: .1rem; color: var(--muted); }
.terminal-footer button { padding: .45rem 0; color: var(--muted); }
.terminal-footer button:hover { color: var(--orange); }

.busy .terminal-form { opacity: .55; }

@media (max-width: 640px) {
  body { font-size: 14px; }
  .machine {
    height: 100dvh;
    padding: max(.75rem, env(safe-area-inset-top)) .75rem max(.65rem, env(safe-area-inset-bottom));
    border: 0;
  }
  .machine-top { font-size: .7rem; }
  .machine-top span:first-child { display: none; }
  .machine-top { justify-content: flex-end; }
  .gate { inset: 3rem .75rem .75rem; }
  .gate h1 { letter-spacing: .1em; }
  .entry { line-height: 1.42; }
  .terminal-footer { font-size: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  .splash button { animation: none; }
}