:root {
  color-scheme: dark;
  --color-ink: #f4fbf6;
  --color-muted: #9fb2a8;
  --color-canvas: #07110e;
  --color-surface: #121f1a;
  --color-surface-strong: #172720;
  --color-field: #0c1713;
  --color-line: #273a31;
  --color-green: #38d383;
  --color-blue: #79aef2;
  --color-amber: #efb65b;
  --color-red: #ff736a;
  --color-teal: #63d5c7;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-card: 8px;
  --shadow-soft: 0 18px 44px rgba(0, 0, 0, 0.32);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.24);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--color-canvas);
  color: var(--color-ink);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
}

body {
  background: linear-gradient(180deg, #07110e 0%, #0a1511 52%, #07110e 100%);
}

button {
  border: 0;
  font: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

button:focus-visible {
  outline: 3px solid rgba(39, 98, 164, 0.35);
  outline-offset: 2px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.app-shell,
.onboarding-shell {
  width: min(100%, 520px);
  min-height: 100vh;
  margin: 0 auto;
  background: var(--color-field);
}

.app-shell {
  border-inline: 1px solid rgba(39, 58, 49, 0.55);
  box-shadow: var(--shadow-soft);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: var(--space-3);
  min-height: 68px;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-line);
  background: rgba(12, 23, 19, 0.96);
  backdrop-filter: blur(10px);
}

.brand-lockup {
  min-width: 0;
  text-align: center;
}

.brand-lockup p,
.eyebrow,
.metric-label {
  color: var(--color-teal);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.brand-lockup h1 {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 1.2rem;
  font-weight: 900;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  font-weight: 900;
}

.icon-button.is-hidden {
  pointer-events: none;
  opacity: 0;
}

.app-main {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  padding-bottom: max(var(--space-5), env(safe-area-inset-bottom));
}

.stack,
.action-stack,
.debug-list {
  display: grid;
  gap: var(--space-3);
}

.section-heading {
  display: grid;
  gap: var(--space-1);
}

.heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.section-heading h2,
.card h2 {
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.25;
}

.section-heading p,
.card p,
.timer-card p,
.estimate-panel p {
  color: var(--color-muted);
  font-size: 0.92rem;
  line-height: 1.42;
}

.card,
.crossing-card,
.timer-card,
.onboarding-card,
.resume-button,
.install-card,
.info-row,
.metric-box,
.settings-row,
.debug-row {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.card,
.crossing-card,
.timer-card,
.onboarding-card {
  padding: var(--space-4);
}

.install-card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  background: linear-gradient(135deg, rgba(121, 174, 242, 0.14), rgba(56, 211, 131, 0.1)), var(--color-surface);
}

.update-card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid rgba(239, 182, 91, 0.5);
  border-radius: var(--radius-card);
  background: rgba(239, 182, 91, 0.1);
}

.update-card h2 {
  font-size: 0.98rem;
  font-weight: 950;
  line-height: 1.2;
}

.update-card p {
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.38;
}

.install-card-header {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 34px;
  gap: var(--space-3);
  align-items: start;
}

.install-visual {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(56, 211, 131, 0.14);
}

.install-phone {
  width: 17px;
  height: 25px;
  border: 2px solid var(--color-green);
  border-radius: 5px;
  box-shadow: inset 0 -4px 0 rgba(56, 211, 131, 0.18);
}

.install-home-dot {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-blue);
}

.install-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(159, 178, 168, 0.28);
  border-radius: var(--radius-md);
  background: rgba(12, 23, 19, 0.5);
  color: var(--color-muted);
  font-weight: 950;
}

.install-card h2 {
  font-size: 1rem;
  font-weight: 950;
  line-height: 1.2;
}

.install-card p {
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.install-card .install-instructions {
  color: var(--color-ink);
  font-weight: 800;
}

.install-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.privacy-card {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}

.privacy-note {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-3);
  border: 1px solid rgba(99, 213, 199, 0.18);
  border-radius: var(--radius-card);
  background: rgba(99, 213, 199, 0.06);
}

.privacy-note h2 {
  font-size: 0.9rem;
  font-weight: 950;
  line-height: 1.2;
}

.privacy-note p {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 0.8rem;
  line-height: 1.35;
}

.privacy-note-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-md);
  background: rgba(99, 213, 199, 0.12);
  color: var(--color-teal);
  font-size: 0.62rem;
  font-weight: 950;
}

.utility-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(99, 213, 199, 0.28);
  border-radius: var(--radius-card);
  background: rgba(121, 174, 242, 0.08);
  color: var(--color-teal);
  font-size: 0.88rem;
  font-weight: 900;
  text-align: left;
}

.utility-link span:last-child {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: rgba(99, 213, 199, 0.12);
}

.status-icon,
.success-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: rgba(56, 211, 131, 0.14);
  color: var(--color-green);
  font-size: 0.78rem;
  font-weight: 900;
}

.crossing-card,
.resume-button,
.settings-row {
  width: 100%;
  color: var(--color-ink);
  text-align: left;
}

.crossing-card {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border-color: rgba(99, 213, 199, 0.22);
  background:
    linear-gradient(180deg, rgba(244, 251, 246, 0.035), rgba(244, 251, 246, 0)),
    var(--color-surface);
  box-shadow: var(--shadow-card);
}

.crossing-card.is-empty {
  border-color: rgba(121, 174, 242, 0.25);
  background:
    linear-gradient(180deg, rgba(121, 174, 242, 0.08), rgba(244, 251, 246, 0.01)),
    var(--color-surface);
}

.card-topline,
.compact-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-topline h2,
.card-topline h3 {
  font-size: 1.12rem;
  font-weight: 900;
  line-height: 1.2;
}

.card-topline p {
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.wait-row,
.estimate-focus {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: end;
}

.estimate-focus {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: rgba(7, 17, 14, 0.52);
}

.estimate-focus p {
  margin-top: var(--space-2);
  color: var(--color-muted);
  font-size: 0.86rem;
  font-weight: 750;
  line-height: 1.35;
}

.wait-row strong,
.estimate-focus strong,
.estimate-panel strong {
  display: block;
  margin-top: var(--space-1);
  font-size: 2.24rem;
  font-weight: 950;
  line-height: 1;
}

.confidence-stack {
  display: grid;
  justify-items: end;
  gap: var(--space-1);
  align-self: start;
}

.confidence-stack small {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 800;
  white-space: nowrap;
}

.card-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.card-metrics span {
  min-width: 0;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: rgba(12, 23, 19, 0.72);
  line-height: 1.25;
}

.badge,
.trend {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.badge-high,
.trend-faster {
  background: rgba(56, 211, 131, 0.14);
  color: var(--color-green);
}

.badge-medium {
  background: rgba(239, 182, 91, 0.16);
  color: var(--color-amber);
}

.badge-low,
.trend-slower {
  background: rgba(121, 174, 242, 0.14);
  color: var(--color-blue);
}

.badge-empty {
  background: rgba(159, 178, 168, 0.13);
  color: var(--color-muted);
}

.trend-stable {
  background: rgba(121, 174, 242, 0.14);
  color: var(--color-blue);
}

.resume-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: #172b22;
  color: var(--color-ink);
  font-weight: 900;
}

.hero-card,
.completion-card {
  display: grid;
  gap: var(--space-4);
}

.estimate-panel {
  border-radius: var(--radius-md);
  background: var(--color-field);
  padding: var(--space-4);
}

.info-list,
.metric-grid,
.settings-list {
  display: grid;
  gap: var(--space-3);
}

.info-row,
.metric-box,
.debug-row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  background: var(--color-surface);
}

.info-row span,
.metric-box span {
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.info-row strong,
.metric-box strong,
.debug-row strong {
  font-size: 0.98rem;
  line-height: 1.35;
}

.metric-box small,
.debug-row span {
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.how-hero {
  background:
    linear-gradient(135deg, rgba(99, 213, 199, 0.1), rgba(121, 174, 242, 0.08)),
    var(--color-surface);
}

.how-hero h2 {
  font-size: 1.45rem;
  font-weight: 950;
  line-height: 1.12;
}

.how-steps {
  display: grid;
  gap: var(--space-3);
}

.how-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.how-step > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: var(--color-green);
  color: #06110d;
  font-weight: 950;
}

.how-step h3 {
  font-size: 1rem;
  font-weight: 950;
  line-height: 1.25;
}

.how-step p {
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.38;
}

.timer-card {
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  text-align: center;
}

.timer-readout {
  font-size: 4rem;
  font-variant-numeric: tabular-nums;
  font-weight: 950;
  line-height: 1;
}

.reminder-card {
  border-color: rgba(239, 182, 91, 0.65);
  background: #201a10;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
}

.primary-button,
.secondary-button,
.success-button,
.danger-button {
  min-height: 48px;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-weight: 900;
  text-align: center;
}

.primary-button {
  background: var(--color-green);
  color: #06110d;
}

.secondary-button {
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
}

.success-button {
  background: var(--color-green);
  color: #06110d;
}

.danger-button {
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-red);
}

.text-button {
  min-height: 36px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #172b22;
  color: var(--color-muted);
  padding: var(--space-2) var(--space-3);
  font-size: 0.82rem;
  font-weight: 900;
}

.text-button.subtle {
  border-color: transparent;
  background: transparent;
  color: var(--color-teal);
  padding-inline: var(--space-1);
}

.full {
  width: 100%;
}

.span-2 {
  grid-column: 1 / -1;
}

.sticky-action {
  position: sticky;
  bottom: max(var(--space-4), env(safe-area-inset-bottom));
}

.validation-dot {
  width: 12px;
  height: 12px;
  flex: 0 0 12px;
  border-radius: 50%;
  background: #53645b;
}

.validation-dot.valid {
  background: var(--color-green);
}

.validation-dot.warning {
  background: var(--color-amber);
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.segmented-control button {
  min-height: 44px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-field);
  color: var(--color-ink);
  font-weight: 900;
}

.segmented-control button.active {
  border-color: var(--color-ink);
  background: var(--color-green);
  color: #06110d;
}

.settings-row {
  min-height: 52px;
  padding: var(--space-3) var(--space-4);
  font-weight: 900;
}

.settings-intro {
  display: grid;
  gap: var(--space-2);
}

.settings-intro span {
  width: fit-content;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  background: rgba(121, 174, 242, 0.12);
  color: var(--color-blue);
  font-size: 0.76rem;
  font-weight: 900;
}

.privacy-list {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding-left: var(--space-5);
  color: var(--color-muted);
  line-height: 1.42;
}

.privacy-policy-hero,
.privacy-policy-section {
  display: grid;
  gap: var(--space-2);
}

.privacy-policy-hero h2 {
  font-size: 1.4rem;
  line-height: 1.1;
}

.privacy-policy-section h2 {
  color: var(--color-ink);
}

.onboarding-shell {
  display: grid;
  align-items: center;
  padding: var(--space-4);
  min-height: 100svh;
}

.onboarding-card {
  display: grid;
  gap: var(--space-5);
  align-content: start;
  padding: var(--space-5);
  border-color: rgba(99, 213, 199, 0.22);
  background:
    linear-gradient(180deg, rgba(99, 213, 199, 0.08), rgba(18, 31, 26, 0.98) 38%),
    var(--color-surface);
  box-shadow: var(--shadow-card);
}

.onboarding-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.onboarding-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border-radius: var(--radius-md);
  background: var(--color-green);
  color: #06110d;
  font-weight: 950;
}

.onboarding-marker {
  max-width: 58%;
  padding: var(--space-2) var(--space-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.72rem;
}

.onboarding-topline .eyebrow {
  max-width: 42%;
  text-align: right;
}

.onboarding-hero {
  display: grid;
  gap: var(--space-3);
}

.onboarding-card h1 {
  font-size: 2rem;
  font-weight: 950;
  line-height: 1.06;
}

.onboarding-copy {
  color: var(--color-muted);
  font-size: 1rem;
  line-height: 1.45;
}

.onboarding-list {
  display: grid;
  gap: var(--space-3);
  padding: 0;
}

.onboarding-item {
  padding: var(--space-3);
  border: 1px solid rgba(39, 58, 49, 0.72);
  border-radius: var(--radius-md);
  background: rgba(12, 23, 19, 0.62);
}

.onboarding-item h2 {
  font-size: 1rem;
  font-weight: 950;
  line-height: 1.25;
}

.onboarding-item p {
  margin-top: var(--space-1);
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

@media (min-width: 430px) {
  .card-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 360px) {
  .privacy-note {
    grid-template-columns: 28px minmax(0, 1fr);
  }

  .privacy-note .text-button {
    grid-column: 1 / -1;
    width: 100%;
  }

  .estimate-focus {
    grid-template-columns: 1fr;
  }

  .confidence-stack {
    justify-items: start;
  }

  .card-metrics {
    grid-template-columns: 1fr;
  }

  .onboarding-card {
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .onboarding-card h1 {
    font-size: 1.78rem;
  }

  .onboarding-topline {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-2);
  }

  .onboarding-marker,
  .onboarding-topline .eyebrow {
    max-width: 100%;
    text-align: left;
  }

  .timer-readout {
    font-size: 3.35rem;
  }

  .wait-row strong,
  .estimate-panel strong {
    font-size: 1.75rem;
  }
}