:root {
  --teal: #007b85;
  --teal-dark: #005a63;
  --navy: #00205b;
  --green: #70ad47;
  --yellow: #ffb600;
  --ink: #172033;
  --muted: #64748b;
  --surface: #ffffff;
  --bg: #edf3f5;
  --line: #d9e3e8;
  --screen: #d8f0dd;
  --screen-ink: #173b2f;
  --danger: #d93b3b;
  --shadow: 0 22px 60px rgba(0, 32, 91, .13);
  font-family: Outfit, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { color-scheme: light; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(0, 123, 133, .09), transparent 28rem),
    linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
  min-height: 100vh;
}

button, select { font: inherit; }
button { touch-action: manipulation; }

.login-gate {
  min-height: 100vh;
  padding: clamp(18px, 4vw, 54px);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 12% 14%, rgba(255,182,0,.2), transparent 25rem),
    radial-gradient(circle at 88% 80%, rgba(112,173,71,.2), transparent 26rem),
    linear-gradient(135deg, var(--navy), #003f77 58%, var(--teal));
}
.login-shell { width: min(1080px, 100%); min-height: 650px; display: grid; grid-template-columns: 1.04fr .96fr; overflow: hidden; border: 1px solid rgba(255,255,255,.22); border-radius: 30px; background: white; box-shadow: 0 36px 90px rgba(0,12,42,.4); }
.login-story { min-width: 0; padding: clamp(28px, 5vw, 58px); position: relative; display: flex; flex-direction: column; color: white; background: linear-gradient(155deg, rgba(0,32,91,.98), rgba(0,123,133,.94)); }
.login-story::after { content: ""; width: 250px; height: 250px; position: absolute; right: -85px; bottom: -95px; border: 38px solid rgba(255,255,255,.07); border-radius: 50%; }
.login-brand { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; color: white; text-decoration: none; }
.login-brand img { width: 72px; height: 72px; object-fit: contain; border-radius: 50%; filter: drop-shadow(0 5px 8px rgba(0,20,54,.3)); }
.login-brand strong, .login-brand small { display: block; }.login-brand strong { font-size: 18px; }.login-brand small { margin-top: 3px; opacity: .8; font-size: 13px; }
.login-story-copy { position: relative; z-index: 1; margin: auto 0; padding: 42px 0; }
.login-eyebrow { margin: 0 0 12px; color: #7ee4e7; font-size: 13px; font-weight: 900; letter-spacing: .13em; }
.login-story h1 { max-width: 600px; color: white; font-size: clamp(34px, 5vw, 58px); line-height: .98; }
.login-story-copy > p:not(.login-eyebrow) { max-width: 560px; margin: 22px 0; color: #d4eef1; font-size: 17px; line-height: 1.6; }
.login-story ul { margin: 0; padding: 0; display: grid; gap: 11px; list-style: none; }
.login-story li { padding-left: 28px; position: relative; color: #edf9fa; font-size: 15px; line-height: 1.45; }.login-story li::before { content: "✓"; position: absolute; left: 0; color: var(--yellow); font-weight: 900; }
.login-back { width: fit-content; min-height: 44px; padding: 10px 15px; position: relative; z-index: 1; display: inline-flex; align-items: center; border: 1px solid rgba(255,255,255,.35); border-radius: 10px; color: white; background: rgba(255,255,255,.08); text-decoration: none; font-size: 14px; font-weight: 850; }
.login-back:hover { background: rgba(255,255,255,.17); }

.login-card { min-width: 0; padding: clamp(28px, 5vw, 56px); align-self: center; }
.login-card-heading { display: flex; align-items: center; gap: 14px; }.login-card-heading p { margin: 0 0 4px; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .12em; }.login-card-heading h2 { margin: 0; color: var(--navy); font-size: clamp(25px, 3vw, 34px); letter-spacing: -.025em; }
.member-icon { width: 46px; height: 46px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; color: var(--navy); background: var(--yellow); font-size: 23px; font-weight: 950; }
.login-intro { margin: 17px 0 22px; color: var(--muted); font-size: 15px; line-height: 1.55; }
.login-form { display: grid; gap: 8px; }.login-form > label { margin-top: 8px; color: var(--navy); font-size: 14px; font-weight: 850; }
.login-form input { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid #bdced6; border-radius: 11px; color: var(--ink); background: #fbfdfe; font: inherit; font-size: 16px; outline: none; transition: border-color .2s, box-shadow .2s; }
.login-form input:focus { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(0,123,133,.12); }.login-form input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 4px rgba(217,59,59,.09); }
.password-field { position: relative; }.password-field input { padding-right: 86px; }.password-field button { min-height: 38px; padding: 6px 10px; position: absolute; right: 6px; top: 6px; border: 0; border-radius: 8px; color: var(--teal-dark); background: #e8f4f5; cursor: pointer; font-size: 12px; font-weight: 850; }
.login-message { min-height: 23px; margin: 3px 0 0; color: var(--danger); font-size: 13px; line-height: 1.4; }.login-message.success { color: #35751d; }
.login-submit { width: 100%; min-height: 52px; padding: 12px 17px; display: flex; align-items: center; justify-content: space-between; border: 0; border-radius: 11px; color: white; background: linear-gradient(100deg, var(--navy), var(--teal)); cursor: pointer; font-size: 16px; font-weight: 850; box-shadow: 0 12px 24px rgba(0,32,91,.18); }.login-submit:hover { filter: brightness(1.08); }.login-submit:disabled { opacity: .7; cursor: wait; }.login-submit i { font-style: normal; font-size: 22px; }
.register-callout { margin-top: 20px; padding: 15px; display: grid; gap: 4px; border: 1px solid #d8e4e8; border-radius: 13px; background: #f5f9fa; }.register-callout strong { color: var(--navy); font-size: 14px; }.register-callout span { color: var(--muted); font-size: 13px; line-height: 1.4; }.register-callout a { width: fit-content; margin-top: 5px; color: var(--teal-dark); font-size: 14px; font-weight: 900; }
.login-privacy { margin: 15px 0 0; color: #7a8793; font-size: 12px; line-height: 1.45; }
.login-contact { margin-top: 17px; padding-top: 15px; display: flex; flex-wrap: wrap; gap: 5px 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }.login-contact a { color: var(--navy); text-decoration: none; font-weight: 750; }

.topbar {
  min-height: 72px;
  padding: 12px clamp(16px, 4vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: white;
  background: linear-gradient(105deg, var(--navy), #003774 62%, var(--teal));
  box-shadow: 0 10px 28px rgba(0, 32, 91, .2);
}

.resource-bar { min-height: 52px; padding: 7px clamp(16px, 4vw, 56px); display: flex; align-items: center; gap: 8px; color: var(--navy); background: white; border-bottom: 1px solid var(--line); box-shadow: 0 7px 20px rgba(0,32,91,.05); }
.resource-link { min-height: 38px; padding: 8px 12px; display: inline-flex; align-items: center; border: 1px solid #c8d9df; border-radius: 9px; color: var(--navy); background: #f7fafb; text-decoration: none; font-size: 13px; font-weight: 850; }.resource-link:hover { border-color: var(--teal); background: #edf8f8; }.channel-link { color: #195c33; background: #edf8f1; border-color: #bcdcc7; }
.member-session { margin-left: auto; display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }.member-session strong { color: var(--navy); }.member-session button { min-height: 36px; padding: 7px 11px; border: 1px solid #cbd8de; border-radius: 8px; color: #7c2631; background: white; cursor: pointer; font-size: 12px; font-weight: 850; }

.brand {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-mark, .meter-logo, .boot-logo {
  display: block;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 3px 5px rgba(0, 20, 54, .25));
}

.brand-mark { width: 54px; height: 54px; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 16px; letter-spacing: .01em; }
.brand small { margin-top: 2px; opacity: .78; font-size: 12px; }

.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

.chip, .round-help {
  min-height: 40px;
  border: 1px solid rgba(255,255,255,.34);
  color: white;
  background: rgba(255,255,255,.08);
  cursor: pointer;
  transition: .2s ease;
}

.chip { border-radius: 999px; padding: 8px 14px; font-size: 14px; font-weight: 700; }
.chip:hover, .round-help:hover { background: rgba(255,255,255,.18); }
.chip.active { color: var(--navy); background: var(--yellow); border-color: var(--yellow); }
.round-help { width: 40px; border-radius: 50%; font-size: 19px; font-weight: 800; }

.workbench {
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: clamp(22px, 3vw, 42px) clamp(14px, 3vw, 44px) 34px;
  display: grid;
  grid-template-columns: minmax(250px, .78fr) minmax(390px, 1.14fr) minmax(280px, .88fr);
  gap: clamp(20px, 3vw, 42px);
  align-items: start;
}

.context-panel, .learning-panel { min-width: 0; }
.eyebrow { margin: 0 0 8px; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .14em; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { margin: 0; color: var(--navy); font-size: clamp(25px, 3vw, 39px); line-height: 1.03; letter-spacing: -.035em; }
.intro { margin: 14px 0 24px; color: var(--muted); font-size: 16px; line-height: 1.55; }
.field-label { display: block; margin: 0 0 7px; color: var(--navy); font-size: 14px; font-weight: 800; }

.scenario-select {
  width: 100%;
  min-height: 48px;
  padding: 10px 42px 10px 14px;
  color: var(--ink);
  background: white;
  border: 1px solid #cbd9df;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 650;
  cursor: pointer;
}

.scenario-select:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(255, 182, 0, .8);
  outline-offset: 3px;
}

.scenario-card, .mission-card, .legend-card, .lesson-card, .settings-summary, .interpretation-card, .quick-reference {
  background: rgba(255,255,255,.91);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 26px rgba(0,32,91,.055);
}

.scenario-card { margin-top: 12px; padding: 12px; display: grid; grid-template-columns: 78px 1fr; gap: 13px; align-items: center; }
.scenario-card strong { color: var(--navy); font-size: 15px; }
.scenario-card p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.45; }

.scenario-visual {
  height: 64px;
  position: relative;
  overflow: hidden;
  border-radius: 11px;
  background: linear-gradient(145deg, #092d45, #007b85);
}

.scenario-visual span { position: absolute; bottom: 13px; width: 8px; border-radius: 5px 5px 0 0; background: var(--yellow); transform-origin: bottom; animation: soundBars 1.1s ease-in-out infinite alternate; }
.scenario-visual span:nth-child(1) { left: 16px; height: 19px; }
.scenario-visual span:nth-child(2) { left: 29px; height: 38px; animation-delay: -.7s; }
.scenario-visual span:nth-child(3) { left: 42px; height: 28px; animation-delay: -.3s; }
.scenario-visual span:nth-child(4) { left: 55px; height: 14px; animation-delay: -.9s; }
@keyframes soundBars { to { transform: scaleY(.43); opacity: .65; } }

.mission-card { margin-top: 16px; padding: 17px; border-left: 5px solid var(--yellow); }
.mission-heading { margin-bottom: 9px; display: flex; justify-content: space-between; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 5px rgba(255,182,0,.15); }
.guide-progress { height: 5px; margin: 0 0 13px; overflow: hidden; border-radius: 99px; background: #e5edf0; }
.guide-progress i { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--yellow), var(--green)); transition: width .3s ease; }
.mission-card strong { color: var(--navy); font-size: 17px; }
.mission-card p, .legend-card p { margin: 7px 0 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.guide-checklist { margin: 14px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; list-style: none; }
.guide-checklist li { min-width: 0; padding: 7px 5px; display: flex; align-items: center; gap: 5px; border: 1px solid rgba(148,163,184,.22); border-radius: 8px; color: #7b8790; background: rgba(255,255,255,.035); font-size: 10px; font-weight: 800; }
.guide-checklist i { width: 19px; height: 19px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; color: #8da0aa; background: rgba(148,163,184,.13); font-style: normal; font-size: 9px; }
.guide-checklist li.current { border-color: rgba(255,182,0,.5); color: white; background: rgba(255,182,0,.08); }
.guide-checklist li.current i { color: #071726; background: var(--yellow); }
.guide-checklist li.done { border-color: rgba(112,173,71,.4); color: #c8edb4; }
.guide-checklist li.done i { color: #06190d; background: var(--green); }
.locate-step { min-height: 40px; margin-top: 12px; padding: 8px 13px; border: 1px solid rgba(0,123,133,.35); border-radius: 9px; color: var(--teal-dark); background: #ecf8f8; font-size: 13px; font-weight: 850; cursor: pointer; }
.locate-step:hover { color: white; background: var(--teal); }
.mission-card.complete { border-left-color: var(--green); }
.mission-card.complete .status-dot { background: var(--green); box-shadow: 0 0 0 5px rgba(112,173,71,.15); }

.legend-card { margin-top: 14px; padding: 15px; }
.legend-card strong { color: var(--navy); font-size: 14px; }

.instrument-stage { position: relative; display: grid; place-items: start center; min-width: 0; }
.meter-shadow { position: absolute; width: 75%; height: 28px; bottom: 4px; background: rgba(0,26,55,.22); filter: blur(16px); border-radius: 50%; }
.meter { width: min(100%, 430px); position: relative; padding-top: 89px; z-index: 1; }

.windscreen {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 50%;
  width: 118px;
  height: 122px;
  transform: translateX(-50%);
  border-radius: 58% 58% 44% 44%;
  background: radial-gradient(circle at 37% 25%, #5b6771 0 3%, #333d46 27%, #151c22 72%);
  box-shadow: inset -13px -9px 25px #0b1015, 0 8px 20px rgba(0,0,0,.28);
}
.foam-grain { position: absolute; inset: 8px; border-radius: inherit; opacity: .35; background-image: radial-gradient(#9ba3aa 0.6px, transparent .9px); background-size: 5px 5px; }
.preamp { position: absolute; top: 97px; left: 50%; width: 58px; height: 66px; transform: translateX(-50%); border-radius: 9px 9px 4px 4px; background: linear-gradient(90deg, #5b6570, #d4d9dc 50%, #66717a); border: 1px solid #39444c; }
.preamp span { position: absolute; left: 8px; right: 8px; height: 2px; background: rgba(0,0,0,.3); }
.preamp span:first-child { top: 17px; }.preamp span:last-child { top: 24px; }

.meter-body {
  position: relative;
  padding: 28px 25px 22px;
  border-radius: 38px 38px 31px 31px;
  color: white;
  background: linear-gradient(135deg, #16314b 0%, #071e34 50%, #00205b 100%);
  border: 2px solid #294967;
  box-shadow: inset 10px 0 14px rgba(255,255,255,.045), inset -11px 0 18px rgba(0,0,0,.32), var(--shadow);
}

.meter-body::before { content: ""; position: absolute; inset: 9px; pointer-events: none; border: 1px solid rgba(255,255,255,.08); border-radius: 31px 31px 25px 25px; }
.meter-brand { min-height: 45px; display: grid; grid-template-columns: 40px 1fr auto; align-items: center; gap: 10px; }
.meter-logo { width: 48px; height: 48px; }
.meter-brand strong, .meter-brand small { display: block; }
.meter-brand strong { font-size: 15px; letter-spacing: .06em; }
.meter-brand small { margin-top: 2px; color: #a9c4d2; font-size: 11px; letter-spacing: .1em; }
.class-badge { padding: 5px 7px; border: 1px solid #8cb3c6; border-radius: 7px; color: #c8e8ee; font-size: 10px; font-weight: 900; }

.screen-shell { margin-top: 17px; padding: 10px; position: relative; overflow: hidden; border-radius: 18px; background: linear-gradient(145deg, #0a1520, #415669); border: 1px solid #637889; box-shadow: inset 0 3px 9px rgba(0,0,0,.8), 0 4px 10px rgba(0,0,0,.25); }
.screen-glare { position: absolute; z-index: 3; top: 10px; left: 9px; right: 9px; height: 32%; pointer-events: none; border-radius: 10px 10px 55% 0; background: linear-gradient(180deg, rgba(255,255,255,.12), transparent); }
.screen { min-height: 360px; position: relative; overflow: hidden; border-radius: 10px; color: var(--screen-ink); background: radial-gradient(circle at 40% 25%, #f0ffed, var(--screen)); box-shadow: inset 0 0 20px rgba(34,99,58,.22); font-family: "Roboto Mono", Consolas, monospace; }
.screen.off { background: #1c2b2c; box-shadow: inset 0 0 30px #050b0d; }
.screen.off .display, .screen:not(.booting) .boot-screen { display: none; }
.screen.off:not(.booting) .boot-screen { display: none; }
.screen.booting .boot-screen { display: flex; }

.boot-screen { position: absolute; inset: 0; display: none; flex-direction: column; align-items: center; justify-content: center; color: #d8f0dd; background: radial-gradient(circle, #0c777c, #05222e 70%); }
.boot-logo { width: 88px; height: 88px; margin-bottom: 13px; }
.boot-screen strong { font-family: Outfit, sans-serif; letter-spacing: .08em; }.boot-screen small { margin-top: 5px; opacity: .72; }

.display { min-height: 360px; padding: 10px 10px 31px; position: relative; }
.status-row { min-height: 22px; padding-bottom: 6px; display: flex; align-items: center; justify-content: space-between; gap: 8px; border-bottom: 1px solid rgba(23,59,47,.3); font-size: 11px; font-weight: 900; }
.run-state { padding: 3px 7px; border-radius: 4px; color: #264735; background: rgba(255,255,255,.38); }
.run-state.running { color: white; background: #17804e; animation: pulse 1.3s infinite; }
@keyframes pulse { 50% { opacity: .72; } }
.battery { width: 24px; height: 11px; padding: 2px; position: relative; border: 1px solid currentColor; border-radius: 2px; }
.battery::after { content: ""; position: absolute; right: -4px; top: 2px; width: 2px; height: 5px; background: currentColor; }
.battery i { display: block; width: 78%; height: 100%; background: currentColor; }

.primary-reading { min-height: 116px; display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: 5px; padding: 11px 3px 4px; }
.primary-reading > span:first-child { align-self: start; padding-top: 14px; font-size: 14px; font-weight: 900; }
.primary-reading strong { text-align: right; font-size: clamp(58px, 8vw, 76px); font-weight: 800; line-height: 1; letter-spacing: -.08em; font-variant-numeric: tabular-nums; }
.unit { padding-bottom: 9px; font-size: 14px; font-weight: 900; }
.level-track { height: 13px; position: relative; overflow: hidden; border: 1px solid rgba(23,59,47,.6); background: repeating-linear-gradient(90deg, transparent 0 9px, rgba(23,59,47,.2) 9px 10px); }
.level-track i { display: block; width: 0; height: 100%; background: linear-gradient(90deg, #3d9b62 0 65%, #e2a514 65% 84%, #c93333 84%); transition: width .2s ease; }
.limit-mark { position: absolute; left: 72.7%; top: -2px; bottom: -2px; width: 2px; background: #a30000; }
.scale { display: flex; justify-content: space-between; padding-top: 3px; font-size: 9px; }
.metrics-grid { margin-top: 12px; display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid rgba(23,59,47,.4); }
.metrics-grid div { padding: 8px; display: flex; align-items: baseline; justify-content: space-between; border-right: 1px solid rgba(23,59,47,.25); border-bottom: 1px solid rgba(23,59,47,.25); }
.metrics-grid div:nth-child(even) { border-right: 0; }.metrics-grid div:nth-last-child(-n+2) { border-bottom: 0; }
.metrics-grid span { font-size: 10px; font-weight: 800; }.metrics-grid strong { font-size: 17px; font-variant-numeric: tabular-nums; }

.screen-footer { height: 27px; padding: 6px 9px; position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; color: #eaffea; background: #244f3b; font-size: 10px; font-weight: 900; }

.spectrum-summary { padding: 8px 2px 4px; display: flex; justify-content: space-between; align-items: baseline; font-size: 11px; font-weight: 900; }
.spectrum-summary strong { font-size: 17px; }
.spectrum-bars { height: 230px; padding: 16px 4px 22px; display: flex; align-items: end; gap: 3px; border-left: 1px solid rgba(23,59,47,.5); border-bottom: 1px solid rgba(23,59,47,.5); overflow: hidden; background: repeating-linear-gradient(0deg, transparent 0 34px, rgba(23,59,47,.12) 34px 35px); }
.bar-wrap { height: 100%; min-width: 0; flex: 1; display: flex; flex-direction: column; justify-content: end; align-items: center; position: relative; }
.spectrum-bar { width: 100%; min-width: 3px; height: 5%; display: block; background: #33795b; transition: height .2s ease, background .2s ease; }
.bar-wrap.selected .spectrum-bar { background: #d08c00; }
.bar-label { position: absolute; top: calc(100% + 5px); left: 50%; transform: translateX(-50%) rotate(-50deg); transform-origin: center; white-space: nowrap; font-size: 7px; }
.spectrum-view.third .bar-label { display: none; }
.spectrum-view.third .bar-wrap:nth-child(3n+1) .bar-label { display: block; }
.spectrum-footer { margin-top: 18px; padding: 5px 6px; display: flex; justify-content: space-between; border: 1px solid rgba(23,59,47,.4); font-size: 11px; font-weight: 900; }

.history-title, .menu-title { padding: 9px 2px; display: flex; justify-content: space-between; border-bottom: 1px solid rgba(23,59,47,.4); font-size: 12px; font-weight: 900; }
.history-list { height: 252px; overflow: auto; }
.history-list > p { margin: 80px 0 0; text-align: center; opacity: .65; font-size: 12px; }
.history-item { padding: 8px 4px; display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; border-bottom: 1px solid rgba(23,59,47,.2); font-size: 10px; }
.history-item strong { font-size: 14px; }.history-item small { opacity: .76; }

.menu-title { display: block; text-align: center; }
.menu-list { max-height: 272px; padding: 5px 0; overflow-y: auto; scrollbar-width: thin; }
.menu-item { min-height: 39px; padding: 8px 7px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 6px; border-bottom: 1px solid rgba(23,59,47,.18); font-size: 11px; font-weight: 800; }
.menu-item.selected { color: white; background: #315e49; }
.menu-item small { opacity: .72; font-size: 9px; }
.softkey-hints { position: absolute; bottom: 33px; left: 10px; right: 10px; display: flex; justify-content: space-between; font-size: 9px; }

.calibration-view { padding: 13px 8px 0; text-align: center; }
.cal-label { display: block; font-size: 11px; font-weight: 900; }
.calibrator-graphic { width: 82px; height: 110px; margin: 10px auto 6px; position: relative; display: flex; align-items: center; justify-content: center; border: 2px solid #244f3b; border-radius: 13px; font-weight: 900; }
.calibrator-graphic i { position: absolute; top: -17px; width: 35px; height: 18px; border: 2px solid #244f3b; border-bottom: 0; border-radius: 7px 7px 0 0; }
.calibration-view > strong { display: block; font-size: 31px; }
.calibration-view p { min-height: 28px; margin: 5px 0; font-size: 10px; line-height: 1.3; }
.cal-options { display: flex; justify-content: center; gap: 6px; }
.cal-options span { padding: 5px 9px; border: 1px solid #315e49; border-radius: 4px; font-size: 10px; font-weight: 900; }
.cal-options span.active { color: white; background: #315e49; }

.keypad { width: 96%; margin: 20px auto 4px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px 8px; align-items: center; }
.key {
  min-width: 0;
  min-height: 52px;
  padding: 5px 3px;
  border: 1px solid #748596;
  border-radius: 13px;
  color: #e8f5f8;
  background: linear-gradient(145deg, #42566a, #16293d);
  box-shadow: inset 1px 1px 2px rgba(255,255,255,.2), 0 4px 6px rgba(0,0,0,.36);
  cursor: pointer;
  transition: transform .08s ease, filter .15s ease;
}
.key:active, .key.pressed { transform: translateY(2px); filter: brightness(1.25); box-shadow: inset 0 2px 4px rgba(0,0,0,.45); }
.key span, .key small { display: block; }
.key span { font-size: 13px; font-weight: 900; }.key small { margin-top: 3px; color: #a7bdc9; font-size: 8px; }
.power-key { grid-row: span 2; border-color: #8f6470; color: #ffd2d7; background: linear-gradient(145deg, #6a3542, #301a23); }
.arrow-key { min-height: 46px; border-radius: 50%; }
.ok-key { grid-column: 3; grid-row: 1 / span 2; width: 62px; height: 62px; justify-self: center; border-radius: 50%; border: 3px solid #7191a6; }
.run-key { border-color: #5f9c7c; color: #d9ffe7; background: linear-gradient(145deg, #27734d, #123b2a); }
.save-key { border-color: #9e8c4c; color: #fff1b8; }
.coach-target { position: relative; z-index: 20; animation: coachPulse 1s ease-in-out 3; }
@keyframes coachPulse {
  0%, 100% { box-shadow: inset 1px 1px 2px rgba(255,255,255,.2), 0 4px 6px rgba(0,0,0,.36), 0 0 0 0 rgba(255,182,0,.8); }
  50% { transform: translateY(-2px) scale(1.06); box-shadow: inset 1px 1px 2px rgba(255,255,255,.2), 0 6px 10px rgba(0,0,0,.42), 0 0 0 10px rgba(255,182,0,0); }
}
.keypad-hint { margin: 10px 0 0; min-height: 20px; text-align: center; color: #cbe3eb; font-size: 12px; line-height: 1.4; }
.meter-footer { margin-top: 14px; padding: 0 5px; display: flex; justify-content: space-between; color: #87a8b7; font-size: 9px; letter-spacing: .05em; }
.explain-current { display: none; min-height: 44px; margin-top: 13px; padding: 9px 16px; border: 1px solid rgba(0,123,133,.35); border-radius: 999px; color: var(--teal-dark); background: white; box-shadow: 0 8px 20px rgba(0,32,91,.08); font-size: 14px; font-weight: 850; cursor: pointer; }

.learning-panel { padding: 20px; background: rgba(255,255,255,.58); border: 1px solid rgba(203,217,223,.8); border-radius: 22px; backdrop-filter: blur(9px); box-shadow: 0 16px 35px rgba(0,32,91,.07); }
.learning-header { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.learning-header h2 { margin: 0; color: var(--navy); font-size: 23px; letter-spacing: -.02em; }
.live-pill { flex: 0 0 auto; padding: 6px 9px; border-radius: 99px; color: #53606b; background: #e9eef1; font-size: 11px; font-weight: 800; }
.live-pill.on { color: #0a5d38; background: #dff5e8; }
.lesson-card { margin-top: 16px; padding: 18px; }
.lesson-card.accent { border-top: 4px solid var(--teal); }
.lesson-kicker { color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .1em; }
.lesson-card h3 { margin: 6px 0 10px; color: var(--navy); font-size: 20px; }
.lesson-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.lesson-facts { display: grid; gap: 10px; }
.lesson-facts > div { padding: 10px 11px; border-left: 3px solid #b9d9dc; border-radius: 0 8px 8px 0; background: #f7fafb; }
.lesson-facts > div:nth-child(2) { border-left-color: var(--green); }
.lesson-facts > div:nth-child(3) { border-left-color: var(--yellow); }
.lesson-facts span { display: block; margin-bottom: 3px; color: var(--navy); font-size: 11px; font-weight: 900; letter-spacing: .04em; }
.settings-summary { margin-top: 13px; padding: 7px 14px; }
.settings-summary > button { width: 100%; min-height: 72px; padding: 9px 3px; display: grid; grid-template-columns: 1fr auto; grid-template-rows: auto auto auto; align-content: center; column-gap: 8px; text-align: left; border: 0; border-bottom: 1px solid var(--line); color: inherit; background: transparent; cursor: pointer; }
.settings-summary > button:hover { background: #f5fafb; }
.settings-summary > button:last-child { border-bottom: 0; }
.settings-summary span { color: var(--muted); font-size: 12px; font-weight: 700; }.settings-summary strong { grid-row: span 2; align-self: center; color: var(--teal); font-size: 18px; }.settings-summary small { color: #8995a2; font-size: 11px; }
.settings-summary i { color: var(--teal-dark); font-size: 10px; font-style: normal; font-weight: 850; }
.interpretation-card { margin-top: 13px; padding: 16px; }
.interpretation-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--navy); font-size: 14px; }
.risk { padding: 5px 8px; border-radius: 99px; font-size: 10px; font-weight: 900; white-space: nowrap; }.risk.neutral { color: #56606b; background: #e7ecef; }.risk.low { color: #356622; background: #e6f3df; }.risk.medium { color: #765500; background: #fff1bf; }.risk.high { color: #8c2020; background: #ffe0e0; }
.interpretation-card p { margin: 9px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.quick-reference { margin-top: 13px; overflow: hidden; }
.quick-reference summary { padding: 15px; color: var(--navy); cursor: pointer; font-size: 14px; font-weight: 800; }
.quick-reference dl { margin: 0; padding: 0 15px 13px; }.quick-reference dl div { padding: 8px 0; display: grid; grid-template-columns: 62px 1fr; gap: 8px; border-top: 1px solid var(--line); }.quick-reference dt { color: var(--teal); font-size: 12px; font-weight: 900; }.quick-reference dd { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.4; }

.toast { position: fixed; z-index: 30; left: 50%; bottom: 24px; max-width: min(90vw, 470px); padding: 12px 17px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; border-radius: 10px; color: white; background: #152b42; box-shadow: 0 12px 32px rgba(0,0,0,.28); font-size: 14px; font-weight: 700; transition: .25s ease; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.guide-coach {
  width: min(410px, calc(100vw - 32px));
  padding: 13px;
  position: fixed;
  z-index: 35;
  right: 18px;
  bottom: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(137,243,235,.42);
  border-left: 5px solid var(--yellow);
  border-radius: 15px;
  color: white;
  background: rgba(5,24,40,.97);
  box-shadow: 0 22px 60px rgba(0,0,0,.45), inset 0 1px rgba(255,255,255,.05);
  backdrop-filter: blur(16px);
}
.guide-coach-copy { min-width: 0; }
.guide-coach span, .guide-coach strong, .guide-coach p { display: block; }
.guide-coach span { margin-bottom: 3px; color: var(--cyan-soft); font-size: 10px; font-weight: 900; letter-spacing: .1em; }
.guide-coach strong { color: white; font-size: 15px; line-height: 1.2; }
.guide-coach p { margin: 4px 0 0; color: #afc2ce; font-size: 12px; line-height: 1.35; }
.guide-coach button { min-height: 42px; padding: 8px 11px; border: 1px solid rgba(255,182,0,.55); border-radius: 9px; color: #071726; background: var(--yellow); cursor: pointer; font-size: 12px; font-weight: 900; }
.guide-coach.advance { animation: guideAdvance .85s ease; }
@keyframes guideAdvance { 0%,100% { transform: translateY(0); } 45% { transform: translateY(-8px); box-shadow: 0 25px 65px rgba(0,0,0,.5), 0 0 0 7px rgba(255,182,0,.16); } }
.help-dialog { width: min(760px, calc(100vw - 28px)); max-height: min(90vh, 860px); padding: 0; overflow: auto; border: 0; border-radius: 20px; color: var(--ink); box-shadow: 0 35px 100px rgba(0,32,91,.36); }
.help-dialog::backdrop { background: rgba(0,17,42,.7); backdrop-filter: blur(4px); }
.help-dialog form { padding: 25px; position: relative; }.help-dialog h2 { margin: 0 0 8px; padding-right: 38px; color: var(--navy); font-size: 25px; }.help-dialog h3 { margin: 20px 0 9px; color: var(--navy); font-size: 16px; }.dialog-close { width: 40px; height: 40px; position: absolute; top: 12px; right: 12px; border: 0; border-radius: 50%; color: var(--navy); background: #edf2f4; cursor: pointer; font-size: 24px; }
.dialog-intro { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.manual-search { margin-top: 18px; display: grid; gap: 6px; color: var(--navy); font-size: 13px; font-weight: 850; }
.manual-search input { width: 100%; min-height: 46px; padding: 10px 13px; border: 2px solid #d5e1e5; border-radius: 10px; color: var(--ink); background: white; font: inherit; font-size: 15px; outline: none; }
.manual-search input:focus { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(0,123,133,.1); }
.manual-nav { margin-top: 11px; padding-bottom: 3px; display: flex; gap: 7px; overflow-x: auto; scrollbar-width: thin; }
.manual-nav button { min-height: 38px; padding: 7px 11px; flex: 0 0 auto; border: 1px solid #c8dadd; border-radius: 999px; color: var(--teal-dark); background: #eff8f8; cursor: pointer; font-size: 12px; font-weight: 850; }
.manual-nav button:hover { color: white; background: var(--teal); }
.manual-quick-start { margin-top: 14px; padding: 13px; border-left: 4px solid var(--yellow); border-radius: 9px; background: #f4f8f9; }
.manual-quick-start > strong { color: var(--navy); font-size: 13px; }
.manual-quick-start ol { margin: 9px 0 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; list-style: none; counter-reset: manual-step; }
.manual-quick-start li { min-width: 0; padding-top: 22px; position: relative; text-align: center; color: #536574; font-size: 10px; font-weight: 800; counter-increment: manual-step; }
.manual-quick-start li::before { content: counter(manual-step); width: 19px; height: 19px; position: absolute; top: 0; left: 50%; display: grid; place-items: center; transform: translateX(-50%); border-radius: 50%; color: white; background: var(--teal); font-size: 9px; }
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }.help-grid > div { padding: 12px; border: 1px solid var(--line); border-radius: 10px; }.help-grid strong, .help-grid span { display: block; }.help-grid strong { color: var(--teal); font-size: 13px; }.help-grid span { margin-top: 4px; color: var(--muted); font-size: 12px; line-height: 1.4; }
.function-manual { margin-top: 18px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.function-manual details { background: white; border-bottom: 1px solid var(--line); }
.function-manual details:last-child { border-bottom: 0; }
.function-manual summary { padding: 13px 15px; color: var(--navy); background: #f8fbfc; cursor: pointer; font-size: 14px; font-weight: 850; }
.function-manual details[open] summary { color: white; background: var(--teal); }
.manual-body { padding: 13px 15px 15px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.manual-body p { margin: 0; padding: 0; color: inherit; font-size: inherit; line-height: inherit; }
.manual-body p + p { margin-top: 10px; }
.manual-body ol, .manual-body ul { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.manual-tip { padding: 10px !important; border-left: 3px solid var(--yellow); border-radius: 0 7px 7px 0; background: #fff8df; }
.manual-compare { margin: 11px 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.manual-compare div { padding: 10px; border: 1px solid #d6e4e6; border-radius: 8px; background: #f5fafb; }
.manual-compare strong, .manual-compare span { display: block; }.manual-compare strong { color: var(--teal-dark); }.manual-compare span { margin-top: 3px; font-size: 12px; }
.manual-dictionary { margin: 11px 0 0; display: grid; gap: 6px; }.manual-dictionary div { padding-top: 6px; display: grid; grid-template-columns: 72px 1fr; gap: 8px; border-top: 1px solid var(--line); }.manual-dictionary dt { color: var(--teal-dark); font-weight: 900; }.manual-dictionary dd { margin: 0; }
.manual-empty { margin: 12px 0; padding: 14px; border-radius: 9px; color: #775600; background: #fff3c7; font-size: 13px; }
.help-note { color: var(--muted); font-size: 13px; line-height: 1.5; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.primary-dialog-btn, .secondary-dialog-btn { min-height: 46px; padding: 9px 13px; border-radius: 10px; cursor: pointer; font-weight: 850; }
.primary-dialog-btn { border: 0; color: white; background: var(--teal); }
.secondary-dialog-btn { border: 1px solid #bcd5d9; color: var(--teal-dark); background: #eff8f8; }

.tutorial-dialog { width: min(740px, calc(100vw - 28px)); max-height: min(92vh, 820px); padding: 0; overflow: auto; border: 0; border-radius: 24px; color: var(--ink); background: white; box-shadow: 0 35px 100px rgba(0,10,35,.55); }
.tutorial-dialog::backdrop { background: rgba(0,13,33,.79); backdrop-filter: blur(7px); }
.tutorial-dialog form { min-height: 560px; padding: clamp(23px, 5vw, 44px); position: relative; display: flex; flex-direction: column; background: radial-gradient(circle at 100% 0, rgba(50,214,210,.12), transparent 20rem), white; }
.tutorial-brand { display: flex; align-items: center; gap: 9px; color: var(--teal-dark); font-size: 11px; font-weight: 900; letter-spacing: .12em; }.tutorial-brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 50%; }
.tutorial-status { margin: 22px 0 16px; display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 850; }.tutorial-status > div { display: flex; gap: 5px; }.tutorial-status i { width: 26px; height: 5px; border-radius: 99px; background: #dce5e8; }.tutorial-status i.active { background: var(--teal); }
.tutorial-page { flex: 1; }.tutorial-page h2 { max-width: 600px; margin: 0; color: var(--navy); font-size: clamp(27px, 5vw, 39px); line-height: 1.05; letter-spacing: -.035em; }.tutorial-page > p:not(.eyebrow) { max-width: 620px; margin: 16px 0; color: var(--muted); font-size: 16px; line-height: 1.55; }
.tutorial-flow { margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; list-style: none; }.tutorial-flow li { min-height: 68px; padding: 11px; display: flex; align-items: center; gap: 9px; border: 1px solid #d8e5e8; border-radius: 11px; color: var(--navy); background: #f7fafb; font-size: 13px; font-weight: 850; }.tutorial-flow i { width: 30px; height: 30px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--teal); font-style: normal; }
.tutorial-concepts { margin-top: 24px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }.tutorial-concepts div { padding: 18px; border: 1px solid #d4e3e6; border-radius: 14px; background: #f6fafb; }.tutorial-concepts strong { color: var(--teal); font: 900 36px/1 "Roboto Mono", monospace; }.tutorial-concepts span, .tutorial-concepts small { display: block; }.tutorial-concepts span { margin-top: 10px; color: var(--navy); font-weight: 850; }.tutorial-concepts small { margin-top: 5px; color: var(--muted); line-height: 1.4; }
.tutorial-callout { padding: 12px 14px; border-left: 4px solid var(--green); border-radius: 8px; background: #eff8eb; }.tutorial-callout.warning { border-left-color: var(--yellow); background: #fff8df; }
.tutorial-tools { margin-top: 22px; display: grid; gap: 9px; }.tutorial-tools > div { padding: 12px; display: flex; align-items: center; gap: 12px; border: 1px solid #d8e5e8; border-radius: 11px; }.tutorial-tools i { width: 34px; height: 34px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 10px; color: white; background: var(--teal); font-style: normal; font-weight: 900; }.tutorial-tools span, .tutorial-tools strong { display: block; }.tutorial-tools span { color: var(--muted); font-size: 13px; }.tutorial-tools strong { margin-bottom: 2px; color: var(--navy); font-size: 14px; }
.tutorial-actions { margin-top: 20px; padding-top: 16px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border-top: 1px solid var(--line); }.tutorial-actions > div { display: flex; gap: 8px; }.tutorial-actions button { min-height: 45px; padding: 9px 15px; border: 1px solid #c8dadd; border-radius: 10px; color: var(--teal-dark); background: #f2f8f9; cursor: pointer; font-weight: 850; }.tutorial-actions #tutorialNextBtn, .tutorial-actions #tutorialStartBtn { border-color: var(--teal); color: white; background: var(--teal); }.tutorial-actions .tutorial-skip { border-color: transparent; color: var(--muted); background: transparent; }

.page-footer { min-height: 54px; padding: 15px clamp(16px, 4vw, 56px); display: flex; justify-content: center; flex-wrap: wrap; gap: 9px 22px; color: #d6e4ec; background: var(--navy); font-size: 12px; }.page-footer a { color: white; text-decoration: none; font-weight: 700; }

@media (max-width: 1120px) {
  .workbench { grid-template-columns: minmax(250px, .82fr) minmax(390px, 1.18fr); }
  .learning-panel { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
  .learning-header { grid-column: 1 / -1; }.lesson-card, .settings-summary, .interpretation-card, .quick-reference { margin-top: 0; }
}

@media (max-width: 760px) {
  .login-gate { padding: 0; place-items: stretch; background: white; }.login-shell { min-height: 100vh; grid-template-columns: 1fr; border: 0; border-radius: 0; box-shadow: none; }.login-story { padding: 24px 22px; }.login-brand img { width: 58px; height: 58px; }.login-brand strong { font-size: 16px; }.login-story-copy { margin: 0; padding: 26px 0 13px; }.login-story h1 { font-size: clamp(33px, 11vw, 47px); }.login-story-copy > p:not(.login-eyebrow) { margin: 13px 0 0; font-size: 16px; }.login-story ul { display: none; }.login-back { margin-top: 5px; }
  .login-card { padding: 31px 22px 38px; }.login-card-heading h2 { font-size: 27px; }
  .topbar { align-items: flex-start; }.brand small { display: none; }.top-actions { max-width: 190px; }.chip { min-height: 36px; padding: 6px 10px; font-size: 12px; }.round-help { width: 36px; height: 36px; }
  .resource-bar { align-items: stretch; flex-wrap: wrap; }.resource-link { flex: 1 1 auto; justify-content: center; }.member-session { width: 100%; margin-left: 0; padding-top: 3px; justify-content: space-between; }
  .workbench { padding-top: 20px; grid-template-columns: 1fr; }
  .context-panel { display: contents; }.context-panel > div:first-child, .field-label, .scenario-select, .scenario-card, .mission-card, .legend-card { grid-column: 1; }
  .instrument-stage { grid-row: 7; }.learning-panel { grid-column: 1; grid-template-columns: 1fr; }.learning-header { grid-column: 1; }
  .meter { width: min(100%, 410px); }.meter-body { padding-inline: 16px; }.screen { min-height: 350px; }.display { min-height: 350px; }
  .explain-current { display: inline-flex; align-items: center; justify-content: center; }
}

@media (max-width: 420px) {
  .login-story { padding: 20px 17px; }.login-card { padding-inline: 17px; }.login-story li { font-size: 14px; }.login-contact { display: grid; }
  .topbar { padding: 10px 12px; }.brand-mark { width: 44px; height: 44px; }.brand strong { max-width: 120px; font-size: 13px; }.top-actions { max-width: 155px; gap: 5px; }.chip { padding-inline: 8px; }.round-help { width: 34px; height: 34px; }
  .workbench { padding-inline: 10px; }.meter { padding-top: 80px; }.windscreen { width: 105px; height: 112px; }.preamp { top: 88px; }.meter-body { padding: 25px 12px 18px; border-radius: 30px; }
  .screen-shell { padding: 8px; }.screen, .display { min-height: 342px; }.primary-reading strong { font-size: 58px; }.keypad { gap: 8px 5px; }.key { min-height: 49px; }.ok-key { width: 58px; height: 58px; }.meter-footer { font-size: 8px; }
  .learning-panel { padding: 14px; }.help-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* Control room v4 --------------------------------------------------------- */
:root {
  --night: #04111f;
  --night-2: #071b2d;
  --panel-dark: #0a2236;
  --cyan: #32d6d2;
  --cyan-soft: #89f3eb;
  --steel: #9bb4c6;
}

body { background: var(--night); }

.login-gate {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 4vw, 56px);
  overflow: hidden;
  background:
    linear-gradient(rgba(50,214,210,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(50,214,210,.055) 1px, transparent 1px),
    radial-gradient(circle at 15% 18%, rgba(0,123,133,.34), transparent 32rem),
    radial-gradient(circle at 92% 82%, rgba(112,173,71,.18), transparent 27rem),
    #04111f;
  background-size: 38px 38px, 38px 38px, auto, auto, auto;
}
.login-gate::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--navy), var(--teal), var(--green), var(--yellow));
}
.login-shell {
  width: min(1180px, 100%);
  min-height: 680px;
  grid-template-columns: 1.08fr .92fr;
  border: 1px solid rgba(137,243,235,.2);
  border-radius: 28px;
  background: rgba(5,22,36,.78);
  box-shadow: 0 50px 120px rgba(0,0,0,.46), inset 0 1px rgba(255,255,255,.05);
  backdrop-filter: blur(18px);
}
.login-story {
  padding: clamp(32px, 5vw, 64px);
  background:
    radial-gradient(circle at 80% 65%, rgba(50,214,210,.13), transparent 18rem),
    linear-gradient(155deg, rgba(3,21,39,.7), rgba(0,69,84,.24));
}
.login-story::after {
  right: -105px;
  bottom: -122px;
  width: 335px;
  height: 335px;
  border-width: 1px;
  border-color: rgba(137,243,235,.2);
  box-shadow: 0 0 0 42px rgba(137,243,235,.035), 0 0 0 86px rgba(137,243,235,.025);
}
.login-brand { gap: 15px; }
.login-brand img {
  width: 86px;
  height: 86px;
  filter: drop-shadow(0 0 18px rgba(50,214,210,.28));
}
.login-brand strong { font-size: 20px; }
.login-brand small { color: var(--cyan-soft); opacity: .78; }
.login-story-copy { margin: auto 0; padding: 48px 0 40px; }
.login-eyebrow { display: flex; align-items: center; gap: 10px; color: var(--cyan-soft); font-size: 12px; }
.login-eyebrow span { width: 36px; height: 2px; display: inline-block; background: var(--yellow); box-shadow: 0 0 10px rgba(255,182,0,.65); }
.login-story h1 {
  max-width: 610px;
  font-size: clamp(48px, 6vw, 78px);
  font-weight: 820;
  line-height: .9;
  letter-spacing: -.055em;
}
.login-story h1 em { color: var(--cyan-soft); font-style: normal; }
.login-story-copy > p:not(.login-eyebrow) { max-width: 535px; color: #c5d8e4; font-size: 18px; }
.login-feature-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.login-feature-strip span { padding: 13px 9px; border-top: 1px solid rgba(137,243,235,.3); color: #dcecf2; font-size: 12px; font-weight: 720; }
.login-feature-strip b { display: block; margin-bottom: 5px; color: var(--yellow); font: 800 11px/1 "Roboto Mono", monospace; letter-spacing: .12em; }
.login-back { border-color: rgba(137,243,235,.3); border-radius: 999px; color: var(--cyan-soft); background: rgba(50,214,210,.06); }

.login-card {
  margin: 24px;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 22px;
  color: var(--ink);
  background: rgba(255,255,255,.97);
  box-shadow: 0 26px 70px rgba(0,0,0,.3);
}
.member-icon { border-radius: 13px; color: #062032; background: var(--cyan); box-shadow: 0 0 0 6px rgba(50,214,210,.13); }
.login-card-heading p { color: var(--teal-dark); }
.login-card-heading h2 { font-size: clamp(26px, 3vw, 36px); }
.login-form input { border-width: 2px; border-color: #d2dce1; border-radius: 12px; background: white; }
.login-submit { border-radius: 12px; background: linear-gradient(100deg, var(--navy), var(--teal)); box-shadow: 0 14px 30px rgba(0,74,92,.22); }
.register-callout { border-left: 4px solid var(--yellow); background: #f4f8f9; }

#appShell {
  min-height: 100vh;
  color: #eaf5f8;
  background:
    linear-gradient(rgba(50,214,210,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(50,214,210,.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 12%, rgba(0,123,133,.16), transparent 38rem),
    var(--night);
  background-size: 42px 42px, 42px 42px, auto, auto;
}
.topbar {
  min-height: 78px;
  position: sticky;
  z-index: 15;
  top: 0;
  border-top: 4px solid transparent;
  border-image: linear-gradient(90deg, var(--navy), var(--teal), var(--green), var(--yellow)) 1;
  border-bottom: 1px solid rgba(137,243,235,.14);
  background: rgba(4,17,31,.9);
  box-shadow: 0 16px 36px rgba(0,0,0,.28);
  backdrop-filter: blur(16px);
}
.brand-mark { width: 58px; height: 58px; filter: drop-shadow(0 0 10px rgba(50,214,210,.3)); }
.brand strong { font-size: 17px; }
.brand small { color: var(--cyan-soft); }
.chip, .manual-chip {
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid rgba(137,243,235,.28);
  border-radius: 999px;
  color: #eafafa;
  background: rgba(50,214,210,.07);
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
}
.chip.active { color: #071726; background: var(--yellow); border-color: var(--yellow); }
.manual-chip { color: var(--cyan-soft); }
.resource-bar {
  min-height: 48px;
  border-bottom: 1px solid rgba(137,243,235,.1);
  color: #a9becb;
  background: rgba(7,27,45,.94);
  box-shadow: none;
}
.resource-link { border-color: rgba(137,243,235,.2); color: #dff9f7; background: rgba(50,214,210,.05); }
.resource-link:hover { border-color: var(--cyan); color: white; background: rgba(50,214,210,.12); }
.manual-download-link { gap: 7px; border-color: rgba(255,182,0,.55); color: #ffe394; background: rgba(255,182,0,.1); }
.manual-download-link span { font-size: 18px; line-height: .8; }
.manual-download-link:hover { border-color: var(--yellow); color: #071726; background: var(--yellow); }
.channel-link { border-color: rgba(112,173,71,.35); color: #c8f2b4; background: rgba(112,173,71,.08); }
.member-session { color: #9eb5c2; }.member-session strong { color: white; }
.member-session button { border-color: rgba(255,255,255,.18); color: #ffd2d7; background: rgba(255,255,255,.04); }

.workbench {
  width: min(1580px, 100%);
  padding: 32px clamp(14px, 3vw, 44px) 54px;
  grid-template-columns: minmax(300px, .82fr) minmax(380px, 1.06fr) minmax(320px, .9fr);
  gap: clamp(18px, 2.2vw, 32px);
}
.context-panel h1, .learning-panel h2, .lesson-card h3 { color: white; }
.eyebrow { color: var(--cyan-soft); }
.intro, .scenario-card p, .mission-card p, .legend-card p, .lesson-card p, .interpretation-card p { color: #9eb4c3; }
.field-label { color: #dff4f6; }
.scenario-select { border-color: rgba(137,243,235,.22); color: white; background: #0a2539; }
.scenario-card, .mission-card, .legend-card, .lesson-card, .settings-summary, .interpretation-card, .quick-reference, .learning-panel {
  border-color: rgba(137,243,235,.13);
  color: #eaf5f8;
  background: rgba(10,34,54,.76);
  box-shadow: 0 18px 36px rgba(0,0,0,.16), inset 0 1px rgba(255,255,255,.025);
  backdrop-filter: blur(10px);
}
.scenario-card strong, .mission-card strong, .legend-card strong, .interpretation-heading, .quick-reference summary { color: white; }
.scenario-visual { background: linear-gradient(145deg, #061522, #007b85); box-shadow: inset 0 0 24px rgba(50,214,210,.12); }
.mission-card { border-left-color: var(--yellow); }
.guide-progress { background: rgba(255,255,255,.1); }
.locate-step { border-color: rgba(50,214,210,.38); color: var(--cyan-soft); background: rgba(50,214,210,.07); }

.direct-console {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid rgba(50,214,210,.24);
  border-radius: 18px;
  background: linear-gradient(155deg, rgba(10,38,59,.96), rgba(4,22,38,.96));
  box-shadow: 0 22px 45px rgba(0,0,0,.24), inset 0 1px rgba(255,255,255,.04);
}
.direct-console-heading { margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.direct-console-heading p { margin: 0 0 3px; color: var(--cyan-soft); font-size: 10px; font-weight: 900; letter-spacing: .15em; }
.direct-console-heading h2 { margin: 0; color: white; font-size: 18px; }
.direct-console-heading > span { min-width: 45px; padding: 6px 8px; border: 1px solid rgba(255,255,255,.15); border-radius: 7px; text-align: center; color: #8fa4b1; background: #061421; font: 850 11px/1 "Roboto Mono", monospace; }
.direct-console-heading > span.on { border-color: rgba(112,173,71,.45); color: #c9f7ad; box-shadow: 0 0 14px rgba(112,173,71,.16); }
.direct-actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
.direct-actions button {
  min-height: 67px;
  padding: 8px 4px;
  border: 1px solid rgba(155,180,198,.22);
  border-radius: 11px;
  color: #dcecf3;
  background: linear-gradient(145deg, #15334a, #081a2a);
  cursor: pointer;
  box-shadow: inset 0 1px rgba(255,255,255,.07), 0 5px 10px rgba(0,0,0,.18);
}
.direct-actions button:hover { border-color: var(--cyan); transform: translateY(-1px); }
.direct-actions span, .direct-actions strong { display: block; }
.direct-actions span { margin-bottom: 5px; color: var(--cyan-soft); font: 850 13px/1 "Roboto Mono", monospace; }
.direct-actions strong { font-size: 11px; }
.direct-actions .direct-power span { color: #ff8996; }
.direct-actions .direct-run { border-color: rgba(112,173,71,.36); }
.direct-actions .direct-run span { color: #a9eb83; }
.direct-actions .direct-run.running { color: #071c13; background: var(--green); }.direct-actions .direct-run.running span { color: #071c13; }
.direct-setting { padding-top: 12px; display: grid; grid-template-columns: 88px 1fr; align-items: center; gap: 8px; }
.direct-setting > span, .direct-range > span { color: #9cb2bf; font-size: 11px; font-weight: 800; }
.direct-setting > div { padding: 3px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; border: 1px solid rgba(155,180,198,.13); border-radius: 10px; background: rgba(0,0,0,.19); }
.view-setting > div { grid-template-columns: repeat(2, 1fr); }
.direct-setting button {
  min-height: 34px;
  padding: 5px 6px;
  border: 0;
  border-radius: 7px;
  color: #a9bdc8;
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}
.direct-setting button:hover { color: white; background: rgba(50,214,210,.1); }
.direct-setting button.active { color: #061522; background: var(--cyan); box-shadow: 0 4px 12px rgba(50,214,210,.18); }
.direct-range { padding-top: 12px; display: grid; grid-template-columns: 1fr 1.4fr; align-items: center; gap: 8px; }
.direct-range select { width: 100%; min-height: 38px; padding: 7px 10px; border: 1px solid rgba(155,180,198,.22); border-radius: 9px; color: white; background: #071a29; font-size: 12px; }

.instrument-stage { padding-top: 4px; }
.display-switcher {
  width: min(100%, 440px);
  margin: 0 auto 14px;
  padding: 13px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 14px;
  align-items: center;
  border: 1px solid rgba(50,214,210,.24);
  border-radius: 16px;
  background: rgba(8,31,49,.9);
  box-shadow: 0 14px 30px rgba(0,0,0,.18);
}
.display-switcher > div:first-child span, .display-switcher > div:first-child strong { display: block; }
.display-switcher > div:first-child span { color: var(--cyan-soft); font-size: 9px; font-weight: 900; letter-spacing: .14em; }
.display-switcher > div:first-child strong { margin-top: 3px; color: white; font-size: 13px; }
.display-switcher-buttons { padding: 3px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; border-radius: 10px; background: rgba(0,0,0,.22); }
.display-switcher-buttons button { min-height: 38px; padding: 5px; border: 0; border-radius: 7px; color: #a8bdc8; background: transparent; cursor: pointer; font-size: 10px; font-weight: 800; }
.display-switcher-buttons button b { color: var(--yellow); font: 900 11px/1 "Roboto Mono", monospace; }
.display-switcher-buttons button:hover { color: white; background: rgba(50,214,210,.1); }
.display-switcher-buttons button.active { color: #061522; background: var(--cyan); box-shadow: 0 4px 12px rgba(50,214,210,.16); }
.display-switcher-buttons button.active b { color: #061522; }
.display-switcher p { grid-column: 1 / -1; margin: 0; color: #8fa7b4; font-size: 10px; line-height: 1.4; }
.meter { width: min(100%, 408px); padding-top: 83px; }
.windscreen { width: 108px; height: 115px; box-shadow: inset -13px -9px 25px #050a0e, 0 10px 30px rgba(0,0,0,.5), 0 0 28px rgba(50,214,210,.1); }
.preamp { top: 91px; }
.meter-body {
  padding: 24px 22px 20px;
  border: 1px solid rgba(137,243,235,.35);
  border-radius: 34px 34px 28px 28px;
  background:
    linear-gradient(90deg, rgba(50,214,210,.85) 0 5px, transparent 5px calc(100% - 5px), rgba(50,214,210,.85) calc(100% - 5px)),
    linear-gradient(145deg, #123149, #041421 58%, #09233a);
  box-shadow: inset 0 1px rgba(255,255,255,.09), inset 15px 0 24px rgba(255,255,255,.025), 0 28px 70px rgba(0,0,0,.45);
}
.meter-body::before { border-color: rgba(137,243,235,.1); }
.meter-brand strong { color: white; }.meter-brand small { color: var(--cyan-soft); }
.class-badge { border-color: rgba(50,214,210,.5); color: var(--cyan-soft); background: rgba(50,214,210,.07); }
.screen-shell { border-color: #74838e; background: linear-gradient(145deg, #02070a, #3b4f59); box-shadow: inset 0 4px 12px #000, 0 0 0 1px rgba(50,214,210,.18); }
.screen { min-height: 344px; }.display { min-height: 344px; }
.keypad { margin-top: 17px; }
.key { border-color: #4f6b7c; background: linear-gradient(145deg, #27465b, #0a1b2b); }
.key:hover { border-color: var(--cyan); filter: brightness(1.15); }
.ok-key { border-color: #4f98a2; box-shadow: inset 1px 1px 2px rgba(255,255,255,.22), 0 0 0 5px rgba(50,214,210,.08), 0 4px 8px rgba(0,0,0,.36); }
.run-key { border-color: #66ae55; background: linear-gradient(145deg, #347d40, #183e25); }
.power-key { border-color: #9c5362; background: linear-gradient(145deg, #743342, #331923); }
.meter-footer { color: #6f9aab; }

.learning-panel { padding: 18px; }
.learning-header h2 { color: white; }
.live-pill { color: #93a7b3; background: rgba(255,255,255,.07); }
.live-pill.on { color: #caf4b4; background: rgba(112,173,71,.14); }
.lesson-card.accent { border-top-color: var(--cyan); }
.lesson-card h3 { color: white; }
.lesson-facts > div { border-left-color: var(--cyan); background: rgba(255,255,255,.035); }
.lesson-facts span { color: var(--cyan-soft); }
.settings-summary > button { border-bottom-color: rgba(137,243,235,.1); color: white; }
.settings-summary > button:hover { background: rgba(50,214,210,.06); }
.settings-summary strong { color: var(--cyan); }
.settings-summary small { color: #8299a8; }.settings-summary i { color: var(--cyan-soft); }
.quick-reference dl div { border-top-color: rgba(137,243,235,.1); }.quick-reference dt { color: var(--cyan); }.quick-reference dd { color: #9eb4c3; }
.help-dialog { color: var(--ink); }
.cal-options button { padding: 5px 9px; border: 1px solid #315e49; border-radius: 4px; color: #244f3b; background: transparent; cursor: pointer; font: 900 10px/1 inherit; }
.cal-options button.active { color: white; background: #315e49; }
.menu-item { width: 100%; border: 0; border-bottom: 1px solid rgba(23,59,47,.18); text-align: left; color: inherit; background: transparent; cursor: pointer; }
.menu-item:hover { background: rgba(49,94,73,.12); }
.bar-wrap { padding: 0; border: 0; color: inherit; background: transparent; cursor: pointer; font: inherit; }
.bar-wrap:focus-visible { outline: 2px solid #d08c00; outline-offset: 2px; }

.mobile-dock { display: none; }
.page-footer { border-top: 1px solid rgba(137,243,235,.12); background: #030d18; }

@media (max-width: 1180px) {
  .workbench { grid-template-columns: minmax(300px, .82fr) minmax(390px, 1.18fr); }
  .learning-panel { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
  .learning-header { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  body { padding-bottom: env(safe-area-inset-bottom); }
  .login-gate { padding: 0; background-size: 30px 30px, 30px 30px, auto, auto, auto; }
  .login-shell { min-height: 100vh; display: block; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
  .login-story { min-height: auto; padding: 17px 20px 22px; }
  .login-brand img { width: 52px; height: 52px; }.login-brand strong { font-size: 15px; }.login-brand small { font-size: 11px; }
  .login-story-copy { padding: 22px 0 12px; }
  .login-eyebrow { margin-bottom: 9px; font-size: 10px; }
  .login-story h1 { font-size: clamp(40px, 12.5vw, 56px); }
  .login-story-copy > p:not(.login-eyebrow) { margin: 12px 0 0; font-size: 14px; line-height: 1.45; }
  .login-feature-strip { display: none; }
  .login-back { min-height: 38px; margin-top: 7px; padding-block: 7px; }
  .login-card { margin: 0; padding: 24px 20px 36px; border: 0; border-radius: 24px 24px 0 0; }
  .login-card-heading h2 { font-size: 29px; }
  .login-intro { margin: 12px 0 13px; font-size: 14px; }
  .login-form { gap: 5px; }.login-form > label { margin-top: 5px; }.login-form input { min-height: 48px; }
  .topbar { min-height: 68px; padding: 8px 12px; position: static; }
  .brand-mark { width: 46px; height: 46px; }.brand strong { max-width: 145px; font-size: 13px; }.brand small { display: none; }
  .top-actions { max-width: 188px; gap: 5px; }.chip, .manual-chip { min-height: 36px; padding: 6px 9px; font-size: 11px; }.top-actions #soundToggle, .top-actions #guidedToggle { display: none; }
  .resource-bar { padding: 8px 10px; }.resource-link { min-height: 35px; font-size: 11px; }.member-session { width: 100%; }
  .workbench { padding: 22px 11px 102px; display: block; }
  .context-panel { display: block; }
  .context-panel > div:first-child, .field-label, .scenario-select, .scenario-card, .mission-card, .legend-card { display: initial; }
  .context-panel h1 { font-size: 35px; }.intro { margin-bottom: 19px; }
  .scenario-card { display: grid; }
  .direct-console { margin-top: 14px; }
  .instrument-stage { margin-top: 24px; padding-top: 0; }
  .display-switcher { width: 100%; }
  .meter { width: min(100%, 420px); padding-top: 82px; }
  .meter-body { padding-inline: 14px; }
  .learning-panel { margin-top: 22px; display: block; }.learning-panel > * + * { margin-top: 13px; }
  .mission-card, .legend-card { margin-top: 14px; }
  .explain-current { display: none; }
  .mobile-dock {
    z-index: 40;
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    padding: 7px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
    border: 1px solid rgba(137,243,235,.25);
    border-radius: 16px;
    background: rgba(4,17,31,.94);
    box-shadow: 0 20px 55px rgba(0,0,0,.55);
    backdrop-filter: blur(16px);
  }
  .mobile-dock button { min-height: 55px; border: 0; border-radius: 10px; color: #a9c0cd; background: transparent; font-size: 10px; font-weight: 800; }
  .mobile-dock span { margin: 0 auto 4px; display: block; color: var(--cyan-soft); font: 900 16px/1 monospace; }
  .mobile-dock .mobile-run { color: #061522; background: var(--yellow); }.mobile-dock .mobile-run span { color: #061522; }
  .mobile-dock .mobile-run.running { color: white; background: var(--green); }
  .guide-coach { width: auto; left: 10px; right: 10px; bottom: calc(max(10px, env(safe-area-inset-bottom)) + 69px); padding: 11px; gap: 9px; border-radius: 13px; }
  .guide-coach strong { font-size: 14px; }.guide-coach p { font-size: 12px; }.guide-coach button { min-height: 40px; padding-inline: 9px; }
  .toast { bottom: calc(max(10px, env(safe-area-inset-bottom)) + 185px); }
  .page-footer { padding-bottom: 92px; }
  .help-dialog form { padding: 22px 17px; }.help-dialog h2 { font-size: 23px; }.manual-quick-start ol { grid-template-columns: repeat(3, 1fr); row-gap: 10px; }.manual-compare, .dialog-actions { grid-template-columns: 1fr; }
  .tutorial-dialog { width: calc(100vw - 18px); }.tutorial-dialog form { min-height: min(640px, calc(100vh - 18px)); padding: 23px 17px; }.tutorial-flow { grid-template-columns: repeat(2, 1fr); }.tutorial-concepts { grid-template-columns: 1fr; }.tutorial-actions { align-items: stretch; flex-direction: column-reverse; }.tutorial-actions > div { display: grid; grid-template-columns: 1fr 1fr; }.tutorial-actions button { width: 100%; }.tutorial-actions #tutorialStartBtn { grid-column: 1 / -1; }
}

@media (max-width: 410px) {
  .direct-console { padding: 13px; }
  .direct-actions { gap: 5px; }.direct-actions button { min-height: 62px; }
  .direct-setting { grid-template-columns: 78px 1fr; }.direct-setting button { padding-inline: 3px; font-size: 10px; }
  .meter { padding-top: 76px; }.windscreen { width: 102px; height: 106px; }.preamp { top: 84px; }
  .meter-body { padding: 23px 10px 18px; }.keypad { gap: 7px 4px; }.key { min-height: 48px; }
  .login-card { padding-inline: 17px; }.login-story { padding-inline: 17px; }
}

/* Luxómetro · componentes específicos */
.lux-app { --screen: #eef4d2; --screen-ink: #314222; }
.lux-login-story { background: radial-gradient(circle at 84% 23%, rgba(255,214,72,.42), transparent 13rem), linear-gradient(155deg, rgba(0,32,91,.99), rgba(0,123,133,.95)); }
.lux-login-story em { color: #ffd75a; font-style: normal; }
.light-visual { background: radial-gradient(circle at 50% 5%, rgba(255,230,132,.95), rgba(255,182,0,.42) 26%, transparent 55%), linear-gradient(145deg, #0a3150, #007b85); }
.light-visual::before { content: ""; width: 20px; height: 10px; position: absolute; left: 50%; top: 5px; transform: translateX(-50%); border-radius: 4px 4px 12px 12px; background: #fff6c7; box-shadow: 0 0 10px #fff, 0 0 25px rgba(255,208,50,.9); }
.light-visual span { width: 2px; height: 44px !important; top: 15px; bottom: auto; background: linear-gradient(180deg, rgba(255,229,120,.9), transparent); transform-origin: top; animation: lightRays 1.7s ease-in-out infinite alternate; }
.light-visual span:nth-child(1) { left: 24px; transform: rotate(24deg); }.light-visual span:nth-child(2) { left: 34px; transform: rotate(9deg); }.light-visual span:nth-child(3) { left: 44px; transform: rotate(-9deg); }.light-visual span:nth-child(4) { left: 54px; transform: rotate(-24deg); }
@keyframes lightRays { to { opacity: .4; filter: blur(1px); } }

.lux-meter { padding-top: 150px; }.lux-meter .meter-body { position: relative; z-index: 2; }
.sensor-assembly { width: 100%; height: 175px; position: absolute; top: 0; left: 0; z-index: 1; transition: transform .35s ease, opacity .35s ease; }
.sensor-head { width: 136px; height: 104px; padding: 10px 13px; position: absolute; top: 4px; left: 50%; z-index: 2; transform: translateX(-50%); display: grid; justify-items: center; align-content: start; gap: 5px; border: 1px solid #26364a; border-radius: 48px 48px 19px 19px; background: linear-gradient(150deg, #36485c, #101b28 70%); box-shadow: 0 15px 26px rgba(0,22,42,.28), inset 0 1px rgba(255,255,255,.16); }
.sensor-head small { color: #a9bfcb; font-size: 8px; font-weight: 900; letter-spacing: .13em; }
.sensor-dome { width: 80px; height: 65px; display: block; border: 4px solid #d5dde0; border-radius: 50% 50% 44% 44%; background: radial-gradient(circle at 38% 28%, #fff 0 8%, #f8f0c8 22%, #d8d3a8 58%, #a9aa91 100%); box-shadow: 0 0 25px rgba(255,211,74,.18), inset -8px -9px 14px rgba(47,60,54,.17); }
.sensor-cable { width: 168px; height: 108px; position: absolute; left: 50%; top: 72px; transform: translateX(-50%); border: 7px solid #1c2835; border-top-color: transparent; border-left-color: transparent; border-radius: 0 0 72px 0; }
.sensor-cable::after { content: ""; width: 22px; height: 25px; position: absolute; right: -13px; bottom: -12px; border-radius: 5px; background: linear-gradient(90deg, #172330, #425365, #172330); }
.position-shadow .sensor-dome::after, .position-covered .sensor-dome::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: rgba(6,18,27,.58); }.position-shadow .sensor-dome, .position-covered .sensor-dome { position: relative; overflow: hidden; }.position-covered .sensor-dome::after { inset: 0 0 0 42%; background: rgba(6,18,27,.82); }.position-tilted .sensor-head { transform: translateX(-50%) rotate(17deg); transform-origin: 50% 80%; }
.lux-reading strong { letter-spacing: -.055em; }

.lux-grid-view, .lux-stats-view { min-height: 250px; padding: 11px 11px 8px; }
.measurement-grid { margin-top: 10px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.measurement-point { min-width: 0; min-height: 58px; padding: 5px 3px; display: grid; place-items: center; gap: 1px; border: 1px solid rgba(49,66,34,.25); border-radius: 7px; color: var(--screen-ink); background: rgba(255,255,255,.22); cursor: pointer; }
.measurement-point span { font-size: 9px; font-weight: 900; }.measurement-point strong { font-family: Consolas, monospace; font-size: 14px; }.measurement-point small { font-size: 8px; opacity: .72; }.measurement-point.recorded { background: rgba(112,173,71,.23); border-color: rgba(46,100,28,.45); }.measurement-point.selected { outline: 2px solid var(--screen-ink); outline-offset: 1px; }.grid-instruction { margin: 8px 0 0; text-align: center; font-size: 9px; line-height: 1.3; }
.stats-results { margin-top: 11px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }.stats-results > div { min-width: 0; padding: 8px; display: grid; grid-template-columns: 1fr auto; gap: 1px 5px; border: 1px solid rgba(49,66,34,.24); border-radius: 7px; background: rgba(255,255,255,.2); }.stats-results span { grid-column: 1 / -1; font-size: 9px; font-weight: 800; }.stats-results strong { font-family: Consolas, monospace; font-size: 20px; line-height: 1; }.stats-results small { align-self: end; font-size: 8px; }.lux-stats-view > p { margin: 10px 1px 0; font-size: 9px; line-height: 1.35; }
.zero-view { min-height: 250px; padding: 18px 12px; text-align: center; }.zero-view > strong { display: block; margin-top: 10px; font-family: Consolas, monospace; font-size: 25px; }.zero-view > p { margin: 7px 0 0; font-size: 10px; }.zero-graphic { width: 80px; height: 80px; margin: 12px auto 0; position: relative; display: grid; place-items: center; border-radius: 50%; background: #29313a; box-shadow: inset 0 0 0 5px #111820; }.zero-graphic i { width: 57px; height: 57px; position: absolute; border: 3px dashed #e4dc9d; border-radius: 50%; animation: zeroSpin 1.4s linear infinite; }.zero-graphic span { color: #f7efb7; font-size: 12px; font-weight: 900; }.zero-graphic + strong { display: block; margin-top: 9px; }
@keyframes zeroSpin { to { transform: rotate(360deg); } }
.run-state.alert { color: #9a1616; background: rgba(217,59,59,.18); }

@media (max-width: 520px) {
  .lux-meter { padding-top: 136px; }
  .sensor-assembly { height: 155px; transform: scale(.9); transform-origin: 50% 100%; }
  .position-tilted.sensor-assembly { transform: scale(.9); }
  .measurement-point { min-height: 54px; }
}