:root {
  --bg-0: #07101b;
  --bg-1: #0d1830;
  --bg-2: #153253;
  --panel: rgba(8, 17, 34, 0.72);
  --panel-border: rgba(124, 176, 255, 0.18);
  --text: #eff8ff;
  --muted: #8ea9c7;
  --accent: #49f3cb;
  --accent-strong: #24d8ff;
  --accent-soft: rgba(73, 243, 203, 0.18);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --meter-angle: 14deg;
  --volume-strength: 0.18;
  --face-feature: #d9ffff;
  --face-core-a: #0f3747;
  --face-core-b: #113a78;
  --face-core-c: #35efc4;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  color: var(--text);
  color-scheme: dark;
  background:
    radial-gradient(circle at top, rgba(54, 189, 255, 0.16), transparent 34%),
    radial-gradient(circle at 85% 20%, rgba(73, 243, 203, 0.14), transparent 28%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1) 48%, var(--bg-2));
  overflow-x: hidden;
  transition: background 280ms ease, color 280ms ease;
}

body.state-alert {
  --accent: #ffb562;
  --accent-strong: #ff5f53;
  --panel-border: rgba(255, 132, 110, 0.22);
  --face-feature: #ffe3d9;
  --face-core-a: #44131d;
  --face-core-b: #7c1e2a;
  --face-core-c: #ff7f4b;
  background:
    radial-gradient(circle at top, rgba(255, 116, 84, 0.22), transparent 36%),
    radial-gradient(circle at 85% 20%, rgba(255, 191, 96, 0.18), transparent 28%),
    linear-gradient(160deg, #1b0710, #32101d 48%, #4a1820);
}

body.state-sleep {
  --accent: #7aa7cb;
  --accent-strong: #7ec0ff;
  --panel-border: rgba(138, 177, 224, 0.14);
  --face-feature: #cfe4ff;
  --face-core-a: #142238;
  --face-core-b: #1e3a5e;
  --face-core-c: #5f91c6;
  background:
    radial-gradient(circle at top, rgba(118, 151, 212, 0.16), transparent 34%),
    linear-gradient(160deg, #08101c, #101c32 48%, #18263d);
}

.page-glow {
  pointer-events: none;
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.56;
}

.page-glow-a {
  background: radial-gradient(circle, rgba(73, 243, 203, 0.24), transparent 55%);
  width: 36rem;
  height: 36rem;
  left: -10rem;
  top: -10rem;
}

.page-glow-b {
  background: radial-gradient(circle, rgba(36, 216, 255, 0.18), transparent 55%);
  width: 30rem;
  height: 30rem;
  right: -8rem;
  bottom: -8rem;
}

body.state-alert .page-glow-a {
  background: radial-gradient(circle, rgba(255, 95, 83, 0.26), transparent 55%);
}

body.state-alert .page-glow-b {
  background: radial-gradient(circle, rgba(255, 181, 98, 0.2), transparent 55%);
}

.page-grid {
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 4.6rem 4.6rem;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 85%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 85%);
  opacity: 0.3;
}

.settings-btn,
.close-settings-btn,
.mini-btn,
.voice-toggle,
.select-field,
.slider,
.face-toggle {
  font: inherit;
}

.settings-btn,
.close-settings-btn,
.mini-btn,
.voice-toggle {
  cursor: pointer;
  transition: transform 160ms ease, background 180ms ease, opacity 180ms ease;
}

.settings-btn:hover,
.close-settings-btn:hover,
.mini-btn:hover,
.voice-toggle:hover,
.face-toggle:hover {
  transform: translateY(-1px);
}

.settings-btn {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 40;
  padding: 0.78rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(6, 14, 28, 0.64);
  color: var(--text);
  backdrop-filter: blur(14px);
}

.shell {
  position: relative;
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4.8rem 0 2.2rem;
}

.topbar {
  text-align: center;
  margin-bottom: 1.2rem;
}

.eyebrow,
.readout-label,
.label-row span,
.mini-chip,
.scale-row {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.eyebrow,
.readout-label,
.scale-row,
.helper-text,
.mode-line {
  color: var(--muted);
}

h1,
h2 {
  margin: 0;
  font-family: "Orbitron", "Arial Narrow", sans-serif;
  line-height: 1;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 4.7rem);
  margin-top: 0.25rem;
}

h2 {
  font-size: 1.4rem;
}

.mode-line {
  margin: 0.85rem auto 0;
  max-width: 34rem;
  line-height: 1.5;
}

.panel,
.settings-panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.stage {
  position: relative;
  padding: 1.25rem 1rem 1.5rem;
  overflow: hidden;
}

.stage::before,
.settings-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(73, 243, 203, 0.12), transparent 36%);
  pointer-events: none;
}

body.state-alert .stage::before,
body.state-alert .settings-panel::before {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(255, 121, 82, 0.16), transparent 36%);
}

.stage-topline,
.label-row,
.microphone-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.stage-topline {
  flex-wrap: wrap;
}

.mini-chip {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.mini-chip {
  padding: 0.68rem 0.88rem;
  color: var(--muted);
}

.mini-chip strong {
  color: var(--text);
  margin-left: 0.35rem;
}

.face-toggle {
  width: 100%;
  margin-top: 0.85rem;
  border: 0;
  background: transparent;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0;
}

.face-toggle:disabled {
  opacity: 0.7;
  cursor: wait;
}

.meter-ring {
  --ring-track: rgba(255, 255, 255, 0.08);
  position: relative;
  width: min(25rem, 72vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.meter-ring::before,
.meter-ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.meter-ring::before {
  inset: 0;
  background:
    conic-gradient(from -90deg, var(--accent-strong) 0deg var(--meter-angle), var(--ring-track) var(--meter-angle) 360deg);
  -webkit-mask: radial-gradient(circle, transparent calc(100% - 1.15rem), #000 calc(100% - 1rem));
  mask: radial-gradient(circle, transparent calc(100% - 1.15rem), #000 calc(100% - 1rem));
  box-shadow:
    0 0 calc(40px * var(--volume-strength)) rgba(73, 243, 203, 0.65),
    0 0 60px rgba(36, 216, 255, 0.18);
}

body.state-alert .meter-ring::before {
  box-shadow:
    0 0 calc(40px * var(--volume-strength)) rgba(255, 95, 83, 0.78),
    0 0 60px rgba(255, 179, 78, 0.18);
}

.meter-ring::after {
  inset: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background:
    radial-gradient(circle at 50% 25%, rgba(255, 255, 255, 0.15), transparent 38%),
    radial-gradient(circle at 50% 65%, rgba(73, 243, 203, 0.12), transparent 50%),
    rgba(5, 12, 24, 0.92);
}

.ring-core {
  position: relative;
  width: calc(100% - 4rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  z-index: 1;
}

.ring-core::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0)),
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0 2px, transparent 2px 8px);
  opacity: 0.35;
  animation: scan-shift 7s linear infinite;
}

@keyframes scan-shift {
  from {
    transform: translateY(0);
  }

  50% {
    transform: translateY(10px);
  }

  to {
    transform: translateY(0);
  }
}

.sentinel-face {
  position: relative;
  width: min(17rem, 48vw);
  aspect-ratio: 1;
  border-radius: 42% 42% 48% 48% / 40% 40% 54% 54%;
  background:
    radial-gradient(circle at 50% 22%, rgba(255, 255, 255, 0.22), transparent 30%),
    radial-gradient(circle at 50% 70%, rgba(255, 255, 255, 0.06), transparent 46%),
    linear-gradient(180deg, var(--face-core-c), var(--face-core-b) 50%, var(--face-core-a));
  box-shadow:
    inset 0 2px 18px rgba(255, 255, 255, 0.22),
    inset 0 -16px 30px rgba(0, 0, 0, 0.24),
    0 24px 55px rgba(2, 12, 22, 0.4);
  animation: float-face 4.8s ease-in-out infinite;
}

@keyframes float-face {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-7px);
  }
}

.face-glow {
  position: absolute;
  inset: -10%;
  border-radius: inherit;
  background: radial-gradient(circle, rgba(73, 243, 203, 0.18), transparent 55%);
  filter: blur(24px);
  opacity: calc(0.35 + var(--volume-strength) * 0.45);
}

body.state-alert .face-glow {
  background: radial-gradient(circle, rgba(255, 99, 83, 0.24), transparent 55%);
}

.eye,
.sleep-eye,
.brow,
.mouth,
.sleep-mouth,
.cheek,
.sleep-bubble,
.sleep-z {
  position: absolute;
  left: 50%;
  transition: opacity 220ms ease, transform 220ms ease, border-color 220ms ease;
}

.eye {
  top: 34%;
  width: 2.65rem;
  height: 2.65rem;
  margin-left: -5.25rem;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffffff, var(--face-feature) 62%, rgba(217, 255, 255, 0.5) 100%);
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.5);
}

.eye::after {
  content: "";
  position: absolute;
  inset: 0.72rem;
  border-radius: 50%;
  background: rgba(5, 12, 24, 0.78);
}

.eye-right {
  margin-left: 2.6rem;
}

.brow {
  top: 26%;
  width: 4.2rem;
  height: 0.42rem;
  margin-left: -6.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  opacity: 0.08;
  transform: rotate(4deg);
  transition: transform 220ms ease, opacity 220ms ease;
}

.brow-right {
  margin-left: 1.9rem;
  transform: rotate(-4deg);
}

body.state-alert .brow {
  opacity: 0.95;
  transform: rotate(-16deg) translateY(4px);
}

body.state-alert .brow-right {
  transform: rotate(16deg) translateY(4px);
}

.cheek {
  top: 54%;
  width: 2.1rem;
  height: 1.15rem;
  margin-left: -6.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.17);
}

.cheek-right {
  margin-left: 4.25rem;
}

.mouth {
  bottom: 18%;
  width: 6.2rem;
  height: 2.9rem;
  margin-left: -3.1rem;
  border: 0.4rem solid var(--face-feature);
  border-top: 0;
  border-radius: 0 0 6rem 6rem;
}

body.state-alert .mouth {
  height: 2.35rem;
  bottom: 21%;
  border: 0.4rem solid var(--face-feature);
  border-bottom: 0;
  border-radius: 5.6rem 5.6rem 0 0;
}

.sleep-eye,
.sleep-mouth,
.sleep-bubble,
.sleep-z {
  opacity: 0;
  pointer-events: none;
}

.sleep-eye {
  top: 41%;
  width: 2.7rem;
  height: 0.65rem;
  margin-left: -5.2rem;
  border-bottom: 0.34rem solid rgba(223, 239, 255, 0.92);
  border-radius: 999px;
}

.sleep-eye-right {
  margin-left: 2.55rem;
}

.sleep-mouth {
  bottom: 22%;
  width: 3.7rem;
  height: 1.1rem;
  margin-left: -1.85rem;
  border-bottom: 0.34rem solid rgba(223, 239, 255, 0.88);
  border-radius: 999px;
}

.sleep-bubble {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: rgba(210, 232, 255, 0.36);
}

.sleep-bubble-a {
  right: 16%;
  left: auto;
  top: 18%;
}

.sleep-bubble-b {
  right: 10%;
  left: auto;
  top: 11%;
  width: 1.3rem;
  height: 1.3rem;
}

.sleep-z {
  right: 2%;
  left: auto;
  top: 2%;
  color: rgba(223, 239, 255, 0.9);
  font-family: "Orbitron", "Arial Narrow", sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

body.state-sleep .eye,
body.state-sleep .mouth,
body.state-sleep .brow,
body.state-sleep .cheek {
  opacity: 0;
}

body.state-sleep .sleep-eye,
body.state-sleep .sleep-mouth,
body.state-sleep .sleep-bubble,
body.state-sleep .sleep-z {
  opacity: 1;
}

body.state-sleep .sleep-bubble-a {
  animation: bubble-float 2.8s ease-in-out infinite;
}

body.state-sleep .sleep-bubble-b {
  animation: bubble-float 2.8s ease-in-out infinite 0.35s;
}

body.state-sleep .sleep-z {
  animation: z-float 2.8s ease-in-out infinite 0.2s;
}

@keyframes bubble-float {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.4;
  }

  50% {
    transform: translateY(-8px);
    opacity: 0.9;
  }
}

@keyframes z-float {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.55;
  }

  50% {
    transform: translateY(-9px);
    opacity: 1;
  }
}

.face-toggle-hint {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.readout {
  text-align: center;
}

.db-value {
  margin: 0.35rem 0 0;
  font-family: "Orbitron", "Arial Narrow", sans-serif;
  font-size: clamp(4.2rem, 14vw, 7rem);
  line-height: 0.92;
  text-shadow: 0 0 38px rgba(73, 243, 203, 0.24);
}

body.state-alert .db-value {
  text-shadow: 0 0 38px rgba(255, 95, 83, 0.3);
}

body.state-sleep .db-value {
  text-shadow: 0 0 28px rgba(126, 192, 255, 0.2);
}

.mood-text {
  margin: 0.55rem 0 0;
  font-size: 1.08rem;
}

.meter-panel {
  width: min(34rem, 100%);
  margin: 1rem auto 0;
}

.meter-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.84rem;
  margin-bottom: 0.65rem;
}

.meter-track {
  position: relative;
  height: 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #4af0cb, #54d7ff 55%, #ffc35d 85%, #ff6051);
  box-shadow: 0 0 30px rgba(73, 243, 203, 0.26);
  transition: width 180ms ease-out;
}

.threshold-line {
  position: absolute;
  top: -0.22rem;
  left: 50%;
  width: 3px;
  height: 1.55rem;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
}

.status-ribbon {
  width: min(35rem, 100%);
  margin: 1rem auto 0;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  text-align: center;
  background: linear-gradient(135deg, rgba(73, 243, 203, 0.16), rgba(36, 216, 255, 0.12));
  border: 1px solid rgba(73, 243, 203, 0.16);
}

body.state-alert .status-ribbon {
  background: linear-gradient(135deg, rgba(255, 181, 98, 0.18), rgba(255, 95, 83, 0.14));
  border-color: rgba(255, 110, 83, 0.2);
}

body.state-sleep .status-ribbon {
  background: linear-gradient(135deg, rgba(126, 192, 255, 0.12), rgba(152, 183, 230, 0.1));
  border-color: rgba(126, 192, 255, 0.14);
}

.settings-scrim {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 14, 0.58);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 45;
}

.settings-scrim.is-open {
  opacity: 1;
  pointer-events: auto;
}

.settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(430px, 100%);
  height: 100vh;
  padding: 1.15rem;
  overflow-y: auto;
  z-index: 50;
  transform: translateX(105%);
  transition: transform 240ms ease;
  color-scheme: dark;
}

.settings-panel.is-open {
  transform: translateX(0);
}

.settings-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: -1.15rem;
  padding: 0.2rem 0 1rem;
  background: linear-gradient(180deg, rgba(7, 16, 27, 0.96), rgba(7, 16, 27, 0.78) 75%, transparent);
  backdrop-filter: blur(10px);
  z-index: 1;
}

.close-settings-btn,
.mini-btn,
.voice-toggle {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.close-settings-btn {
  padding: 0.7rem 0.95rem;
}

.settings-stack {
  display: grid;
  gap: 0.9rem;
}

.settings-card {
  position: relative;
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.label-row {
  justify-content: space-between;
  align-items: center;
}

.label-row strong {
  font-size: 0.95rem;
}

.select-field {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 3rem;
  margin-top: 0.8rem;
  padding: 0 0.9rem;
  border-radius: 16px;
  color: var(--text);
  background: #0f1c33;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.select-field option {
  color: var(--text);
  background: #0f1c33;
}

.select-field:focus {
  outline: 2px solid rgba(84, 215, 255, 0.45);
  outline-offset: 2px;
}

.slider {
  width: 100%;
  margin: 0.95rem 0 0.55rem;
  accent-color: var(--accent-strong);
}

.scale-row {
  display: flex;
  justify-content: space-between;
}

.microphone-row {
  align-items: flex-start;
  justify-content: flex-start;
  margin-top: 0.85rem;
}

.mini-btn {
  min-height: 2.5rem;
  padding: 0 0.9rem;
  white-space: nowrap;
}

.voice-toggle {
  min-height: 2.6rem;
  padding: 0 0.95rem;
  font-weight: 700;
}

.voice-toggle.is-active {
  color: #041218;
  background: linear-gradient(135deg, rgba(126, 253, 224, 0.96), rgba(60, 192, 255, 0.92));
}

body.state-alert .voice-toggle.is-active {
  color: #250908;
  background: linear-gradient(135deg, rgba(255, 204, 114, 0.96), rgba(255, 99, 83, 0.92));
}

.helper-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 1rem, 760px);
    padding-top: 4.4rem;
  }

  .settings-btn {
    top: 0.7rem;
    right: 0.7rem;
  }

  .stage {
    padding: 1rem 0.65rem 1.2rem;
  }

  .meter-ring {
    width: min(22rem, 84vw);
  }

  .sentinel-face {
    width: min(14.6rem, 50vw);
  }

  .eye {
    width: 2.2rem;
    height: 2.2rem;
    margin-left: -4.55rem;
  }

  .eye-right {
    margin-left: 2.35rem;
  }

  .mouth {
    width: 5.2rem;
    margin-left: -2.6rem;
  }

  .microphone-row,
  .label-row {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ring-core::before,
  .sentinel-face,
  .sleep-bubble-a,
  .sleep-bubble-b,
  .sleep-z {
    animation: none;
  }

  body,
  .settings-panel,
  .settings-scrim,
  .settings-btn,
  .close-settings-btn,
  .mini-btn,
  .voice-toggle,
  .face-toggle {
    transition: none;
  }
}