:root {
  --shell-bg: #030706;
  --shell-bg-soft: #081311;
  --shell-panel: rgba(6, 20, 17, 0.85);
  --shell-border: rgba(86, 255, 190, 0.42);
  --shell-text: #c6ffea;
  --shell-muted: #87d7bb;
  --shell-accent: #56ffbe;
  --shell-accent-2: #39d4ff;
  --shell-warn: #ffef8d;
}

.vibes-shell {
  margin: 0;
  padding: 0;
}

.shell-root {
  position: relative;
  min-height: 100vh;
  color: var(--shell-text);
  background: radial-gradient(1300px 700px at 50% 20%, #0a1412 0%, var(--shell-bg) 60%);
  overflow: hidden;
  font-family: "Courier New", Courier, monospace;
  transition: background-color 0.2s ease;
}

.shell-root::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: screen;
}

.shell-root.alarm-active::after {
  opacity: 0.8;
  animation: shellAlarmFlash 0.45s steps(2, end) infinite;
}

#shellCanvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

.shell-noise {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.12;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.06) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(90deg, rgba(0, 255, 190, 0.04), rgba(0, 255, 190, 0.04) 1px, transparent 1px, transparent 5px);
  mix-blend-mode: screen;
}

.shell-exit {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 8;
  text-decoration: none;
  color: #03100b;
  background: var(--shell-warn);
  border: 2px outset #fff6bc;
  min-height: 2rem;
  padding: 0.26rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.shell-exit:hover,
.shell-exit:focus {
  border-style: inset;
}

.shell-stage {
  position: relative;
  z-index: 5;
  width: min(96vw, 1040px);
  margin: 0 auto;
  padding: 1rem 0.2rem 1.6rem;
}

.shell-window {
  border: 1px solid var(--shell-border);
  background: linear-gradient(180deg, rgba(10, 33, 27, 0.8), rgba(6, 18, 15, 0.9));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.52);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.shell-titlebar {
  min-height: 2rem;
  padding: 0.35rem 0.72rem;
  border-bottom: 1px solid var(--shell-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  color: #8fffd0;
  background: linear-gradient(90deg, rgba(8, 25, 20, 0.96), rgba(6, 20, 33, 0.94));
  font-size: 0.82rem;
}

.shell-dots {
  color: #41f6ff;
}

.shell-body {
  padding: 0.9rem;
}

.shell-kicker {
  margin: 0;
  color: var(--shell-accent-2);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.shell-body h1 {
  margin: 0.35rem 0 0;
  color: #bcffe6;
  font-size: clamp(1.5rem, 3.9vw, 2.7rem);
  line-height: 1.04;
}

.shell-copy {
  margin-top: 0.6rem;
  color: var(--shell-muted);
  line-height: 1.52;
}

.shell-copy a {
  color: #bfffea;
  text-decoration: underline;
}

.shell-panel {
  margin-top: 0.85rem;
  border: 1px solid var(--shell-border);
  background: var(--shell-panel);
  padding: 0.75rem;
}

.shell-panel h2 {
  margin: 0;
  color: var(--shell-accent);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.shell-task-row {
  margin-top: 0.52rem;
  display: grid;
  gap: 0.2rem;
}

.shell-config {
  margin-top: 0.55rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.shell-check {
  grid-column: span 2;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.shell-panel label {
  color: #b7ffe2;
  font-size: 0.84rem;
}

.shell-panel input[type="text"],
.shell-panel input[type="number"],
.shell-panel select {
  min-height: 2rem;
  width: 100%;
  border: 1px solid rgba(122, 255, 201, 0.52);
  background: #021410;
  color: #d4ffef;
  font-family: "Courier New", Courier, monospace;
  padding: 0.22rem 0.45rem;
}

.shell-panel input[type="range"] {
  width: 100%;
  accent-color: var(--shell-accent);
}

.shell-timer {
  margin-top: 0.7rem;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1;
  font-weight: 700;
  color: #d9fff2;
  text-shadow: 0 0 12px rgba(86, 255, 190, 0.45);
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

.shell-status {
  margin: 0.45rem 0 0;
  color: #a6f4d9;
  min-height: 1.2rem;
}

.shell-controls {
  margin-top: 0.58rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.shell-btn {
  min-height: 2rem;
  border: 1px solid #a0ffe0 !important;
  border-radius: 0 !important;
  background: #033025 !important;
  color: #cbffed !important;
  padding: 0.2rem 0.65rem !important;
  font-family: "Courier New", Courier, monospace;
  font-weight: 700 !important;
  text-transform: uppercase;
  cursor: pointer;
}

.shell-btn.alt {
  background: #062b3f !important;
  border-color: #7ed8ff !important;
  color: #cef2ff !important;
}

.shell-btn.warn {
  background: #4a100c !important;
  border-color: #ff9f8b !important;
  color: #ffd7cc !important;
}

.shell-btn.warn:disabled,
.shell-btn.warn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.shell-btn:hover,
.shell-btn:focus {
  background: #074033 !important;
  transform: none !important;
}

.shell-audio-grid {
  margin-top: 0.5rem;
  display: grid;
  gap: 0.22rem;
}

.shell-drill {
  margin-top: 0.55rem;
  padding: 0.5rem;
  border: 1px dashed rgba(107, 255, 201, 0.58);
  background: rgba(2, 12, 10, 0.45);
  color: #ddfff3;
  line-height: 1.45;
}

.shell-portal {
  margin-top: 0.5rem;
  width: 100%;
  min-height: 250px;
  border: 1px solid rgba(98, 219, 179, 0.62);
  background: #fff;
}

.shell-root.alarm-active {
  background: radial-gradient(1400px 760px at 50% 20%, #261303 0%, #0c0402 60%);
}

.shell-root.alarm-active .shell-window {
  border-color: #ffd97e;
  box-shadow: 0 0 0 2px rgba(255, 217, 126, 0.28), 0 24px 70px rgba(255, 80, 0, 0.38);
}

.shell-root.alarm-active .shell-titlebar {
  color: #fff2b6;
  background: linear-gradient(90deg, rgba(65, 15, 5, 0.96), rgba(92, 37, 5, 0.94));
}

.shell-root.alarm-active .shell-timer {
  color: #fff7ba;
  text-shadow: 0 0 16px rgba(255, 228, 126, 0.8);
  animation: shellAlarmPulse 0.45s ease-in-out infinite;
}

.shell-root.alarm-active .shell-status {
  color: #ffe9b0;
}

@keyframes shellAlarmFlash {
  0% {
    background: rgba(255, 60, 60, 0.2);
  }
  50% {
    background: rgba(255, 220, 80, 0.2);
  }
  100% {
    background: rgba(80, 210, 255, 0.2);
  }
}

@keyframes shellAlarmPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

@media (max-width: 760px) {
  .shell-config {
    grid-template-columns: 1fr;
  }

  .shell-check {
    grid-column: span 1;
  }

  .shell-body {
    padding: 0.72rem;
  }
}