/* ============================================================
   Simplementations Labs — instrument viewport
   Committed dark theme (a glowing lab instrument).
   ============================================================ */

:root {
  --bg:        #060811;
  --ink:       #0b0e1a;
  --fg:        #e9edf6;
  --fg-dim:    #6d7793;
  --accent:    #45e2d6;   /* electric cyan  */
  --accent-2:  #ff4d8d;   /* hot magenta    */
  --accent-dk: #1f8f88;
  --on-accent: #041613;   /* text on accent */
  --line:      color-mix(in srgb, var(--fg) 14%, transparent);

  --frame-inset: clamp(14px, 2.4vw, 34px);
  --pad: clamp(16px, 3vw, 40px);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --f-display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-display);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* --------------------------------------------------------- Canvas */
#field {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  display: block;
  z-index: 0;
  /* fallback if WebGL fails to init */
  background:
    radial-gradient(120% 90% at 50% 12%, #14141c 0%, var(--bg) 60%);
}

/* --------------------------------------------------------- Atmosphere */
.grain, .vignette, .scanlines {
  position: fixed; inset: 0; z-index: 2;
  pointer-events: none;
}

.vignette {
  background:
    radial-gradient(130% 120% at 50% 40%, transparent 55%, rgba(0,0,0,0.55) 100%);
  mix-blend-mode: multiply;
}

.scanlines {
  background: repeating-linear-gradient(
    to bottom, rgba(0,0,0,0.16) 0 1px, transparent 1px 3px);
  opacity: 0.35;
  mix-blend-mode: overlay;
}

.grain {
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.5s steps(4) infinite;
}
@keyframes grain {
  0%   { transform: translate(0,0); }
  25%  { transform: translate(-3%, 2%); }
  50%  { transform: translate(2%, -2%); }
  75%  { transform: translate(-1%, 1%); }
  100% { transform: translate(1%, -1%); }
}

/* --------------------------------------------------------- Stage / frame */
.stage {
  position: relative;
  z-index: 3;
  height: 100dvh;
  width: 100%;
}

.frame {
  position: absolute;
  inset: var(--frame-inset);
  border: 1px solid var(--line);
  pointer-events: none;
  /* entrance */
  clip-path: inset(50% 50% 50% 50%);
  opacity: 0;
  transition: clip-path 1.1s var(--ease) 0.15s, opacity 0.6s ease 0.15s;
}
body.loaded .frame { clip-path: inset(0 0 0 0); opacity: 1; }

.tick {
  position: absolute; width: 11px; height: 11px;
  border: 1px solid var(--accent);
}
.tick.tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.tick.tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.tick.bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.tick.br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

/* --------------------------------------------------------- HUD corners */
.hud {
  position: absolute;
  z-index: 4;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  padding: calc(var(--frame-inset) + var(--pad) * 0.5);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.7s ease, transform 0.7s var(--ease);
}
body.loaded .hud { opacity: 1; transform: none; }
body.loaded .hud--tl { transition-delay: 0.55s; }
body.loaded .hud--tr { transition-delay: 0.65s; }
body.loaded .hud--bl { transition-delay: 0.75s; }
body.loaded .hud--br { transition-delay: 0.85s; }

.hud--tl { top: 0; left: 0; }
.hud--tr { top: 0; right: 0; }
.hud--bl { bottom: 0; left: 0; flex-direction: column; align-items: flex-start; gap: 0.3rem; }
.hud--br { bottom: 0; right: 0; }

.mono {
  font-family: var(--f-mono);
  font-size: clamp(9.5px, 1vw, 11.5px);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
}
.dim { color: var(--fg-dim); }

.mark { color: var(--accent); font-size: 13px; line-height: 1; }

.link {
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.25s ease;
}
.link:hover, .link:focus-visible { color: var(--accent); }

.status { display: inline-flex; align-items: center; gap: 0.5rem; }
.status b { color: var(--accent); font-weight: 700; }
.led {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px 1px var(--accent);
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; box-shadow: 0 0 3px 0 var(--accent); }
}

/* --------------------------------------------------------- Console */
.console {
  position: absolute;
  z-index: 4;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(92vw, 860px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(0.9rem, 2.4vh, 1.5rem);
  will-change: transform;
}

.eyebrow {
  color: var(--accent);
  letter-spacing: 0.42em;
  padding-left: 0.42em;
  margin: 0;
  opacity: 0;
  animation: rise 0.7s var(--ease) 0.7s forwards;
}

.wordmark {
  margin: 0;
  line-height: 0.88;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.wordmark .line {
  display: block;
  font-size: clamp(2.05rem, 8.6vw, 6.2rem);
  color: var(--fg);
  text-wrap: balance;
}
.wordmark .line--sub {
  font-size: clamp(0.95rem, 3.4vw, 1.9rem);
  letter-spacing: 0.62em;
  padding-left: 0.62em;
  font-weight: 600;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  margin-top: clamp(0.35rem, 1.2vh, 0.7rem);
}

.tagline {
  margin: 0;
  font-size: clamp(11px, 1.4vw, 14px);
  letter-spacing: 0.16em;
  color: var(--fg-dim);
  text-transform: none;
}

/* prominent coming-soon banner */
.coming {
  margin: clamp(0.2rem, 1vh, 0.6rem) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.6rem, 2vw, 1.1rem);
  font-size: clamp(0.8rem, 2.7vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.52em;
  padding-left: 0.52em;
  color: var(--accent);
  text-shadow: 0 0 26px color-mix(in srgb, var(--accent) 55%, transparent);
  animation: comingPulse 3.2s ease-in-out infinite;
}
.coming::before, .coming::after {
  content: "";
  height: 1px;
  width: clamp(26px, 9vw, 78px);
  flex: none;
}
.coming::before { background: linear-gradient(90deg, transparent, var(--accent)); }
.coming::after  { background: linear-gradient(90deg, var(--accent), transparent); }
@keyframes comingPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.62; }
}

/* --------------------------------------------------------- Notify */
.notify {
  margin-top: clamp(0.4rem, 1.6vh, 1rem);
  display: flex;
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--ink) 55%, transparent);
  backdrop-filter: blur(6px);
  border-radius: 2px;
  overflow: hidden;
  opacity: 0;
  animation: rise 0.7s var(--ease) 0.95s forwards;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.notify:focus-within {
  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent),
              0 0 22px -6px var(--accent);
}
.notify input {
  border: 0; outline: 0; background: transparent;
  color: var(--fg);
  font-size: 12px; letter-spacing: 0.08em;
  padding: 0.85em 1em;
  width: clamp(150px, 42vw, 280px);
}
.notify input::placeholder { color: color-mix(in srgb, var(--fg-dim) 80%, transparent); }
.notify button {
  border: 0; cursor: pointer;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  padding: 0 1.2em;
  transition: background 0.2s ease, filter 0.2s ease;
  white-space: nowrap;
}
.notify button:hover, .notify button:focus-visible { filter: brightness(1.12); }
.notify.done button { background: var(--accent-dk); }

.notify-msg {
  min-height: 1em;
  margin: 0;
  letter-spacing: 0.12em;
  transition: color 0.3s ease;
}
.notify-msg.ok { color: var(--accent); }
.notify-msg.err { color: #e5674b; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* scramble glyphs mid-decode */
.sc { color: var(--accent); opacity: 0.85; }
.tagline .sc { color: var(--fg-dim); }

/* --------------------------------------------------------- Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------- Small screens */
@media (max-width: 560px) {
  .hud--bl { display: none; }
  .hud--br { max-width: 55%; text-align: right; }
  .scanlines { display: none; }
}

/* --------------------------------------------------------- Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .grain, .led, .coming { animation: none; }
  .frame { transition: opacity 0.4s ease; clip-path: none; }
  .hud, .eyebrow, .notify { animation: none; transition: opacity 0.4s ease; opacity: 1; transform: none; }
  .eyebrow { opacity: 1; }
}