:root {
  --ink: #0b1f1c;
  --teal: #0f766e;
  --teal-deep: #115e59;
  --mint: #5eead4;
  --sand: #e8f5f1;
  --sand-deep: #d5ede6;
  --online: #22c55e;
  --offline: #64748b;
  --warning: #f59e0b;
  --surface: #f7fbfa;
  --on-ink: #f0fdfa;
  --danger: #dc2626;
  --line: color-mix(in srgb, var(--teal) 16%, transparent);
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Fraunces", Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font);
}

body {
  min-height: 100dvh;
  min-height: 100svh;
  overflow: hidden;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  height: 100dvh;
  height: 100svh;
  max-height: 100dvh;
  max-height: 100svh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--sand) 0%, var(--sand-deep) 48%, var(--sand) 100%);
}

.main {
  flex: 1 1 auto;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 12px 20px 24px;
}

.view {
  display: none;
  opacity: 0;
}

.view.active {
  display: block;
  opacity: 1;
}

.view.enter-left {
  display: block;
  animation: slideInLeft 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.view.enter-right {
  display: block;
  animation: slideInRight 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.view.exit-left,
.view.exit-right {
  display: none;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(28px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(-28px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.tracker-row {
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.tracker-row:active {
  transform: scale(0.985);
}

#contactList {
  animation: listIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

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

.history-sheet.sheet-in {
  animation: sheetIn 0.24s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.history-sheet.sheet-out {
  animation: sheetOut 0.2s ease both;
}

@keyframes sheetIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes sheetOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

.brand-title {
  margin: 4px 0 0;
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.subtitle {
  margin: 6px 0 0;
  color: color-mix(in srgb, var(--teal-deep) 85%, transparent);
  font-size: 1rem;
  line-height: 1.4;
}

/* —— Guest welcome (inspired by WaLastseen guide layout) —— */
.welcome-home {
  margin-top: 18px;
  animation: welcomeIn 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.welcome-home.hidden,
.live-home.hidden {
  display: none !important;
}

@keyframes welcomeIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.welcome-hero {
  padding: 4px 2px 8px;
}

.welcome-kicker {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

.welcome-headline {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.65rem, 5.5vw, 2.05rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--ink);
}

.welcome-headline em {
  font-style: normal;
  color: var(--teal);
}

.welcome-lead {
  margin: 14px 0 0;
  font-size: 1.02rem;
  line-height: 1.5;
  color: color-mix(in srgb, var(--teal-deep) 78%, #334155);
  max-width: 36ch;
}

/* WaLastseen-style: dial + number + Track Now */
.track-cta {
  margin-top: 22px;
}

.track-cta-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: stretch;
  padding: 8px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--teal) 18%, transparent);
  box-shadow:
    0 10px 28px color-mix(in srgb, var(--teal) 12%, transparent),
    0 1px 0 color-mix(in srgb, white 80%, transparent);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.track-cta-row.is-invalid {
  border-color: color-mix(in srgb, var(--danger) 55%, transparent);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--danger) 12%, transparent);
}

.track-cta-row.is-invalid + .error-text {
  margin-top: 8px;
}

.track-dial {
  appearance: none;
  border: 0;
  background: color-mix(in srgb, var(--sand) 88%, white);
  border-radius: 12px;
  padding: 0 10px;
  min-width: 72px;
  max-width: 96px;
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--ink);
  cursor: pointer;
}

#welcomePhone {
  border: 0;
  outline: none;
  background: transparent;
  font: inherit;
  font-size: 0.98rem;
  color: var(--ink);
  min-width: 0;
  padding: 10px 4px;
}

#welcomePhone::placeholder {
  color: color-mix(in srgb, var(--teal-deep) 45%, #94a3b8);
}

.track-now {
  margin: 0;
  white-space: nowrap;
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: 0 6px 16px color-mix(in srgb, var(--teal) 24%, transparent);
}

@media (max-width: 420px) {
  .track-cta-row {
    grid-template-columns: minmax(72px, auto) 1fr;
  }
  .track-now {
    grid-column: 1 / -1;
  }
}

.welcome-note {
  margin-top: 12px;
  text-align: left;
}

.welcome-demo-btn {
  margin-top: 10px;
}

/* Demo sample profile */
.demo-profile {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 12px;
  align-items: center;
  margin: 8px 0 4px;
  padding: 14px;
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 0 0 1px var(--line);
}

.demo-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  background:
    radial-gradient(circle at 30% 25%, #fde68a, transparent 45%),
    linear-gradient(145deg, #99f6e4, #5eead4 40%, #0d9488);
}

.demo-profile-text {
  min-width: 0;
}

.demo-profile-text strong {
  display: block;
  font-size: 1.05rem;
  color: var(--ink);
}

.demo-profile-text span {
  display: block;
  margin-top: 2px;
  font-size: 0.88rem;
  color: color-mix(in srgb, var(--teal-deep) 70%, #64748b);
}

.demo-badge {
  display: inline-block;
  margin-top: 6px;
  font-style: normal;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--teal-deep);
  background: color-mix(in srgb, var(--mint) 35%, white);
  padding: 3px 8px;
  border-radius: 999px;
}

.demo-online-dot {
  width: 12px;
  height: 12px;
}

.demo-cta {
  margin-top: 18px;
}

.nav-btn[hidden] {
  display: none !important;
}

.welcome-steps {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.welcome-steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--mint) 70%, transparent),
    color-mix(in srgb, var(--teal) 35%, transparent)
  );
  border-radius: 2px;
}

.welcome-step {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  position: relative;
}

.welcome-step-badge {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--mint), color-mix(in srgb, var(--teal) 70%, var(--mint)));
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--teal) 20%, transparent);
  z-index: 1;
}

.welcome-step strong {
  display: block;
  font-size: 0.98rem;
  color: var(--ink);
  margin-bottom: 2px;
}

.welcome-step span {
  display: block;
  font-size: 0.88rem;
  line-height: 1.4;
  color: color-mix(in srgb, var(--teal-deep) 70%, #64748b);
}

.live-home {
  margin-top: 14px;
}

.title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.hero-card {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--ink), var(--teal-deep));
  color: var(--on-ink);
}

.hero-card.link-banner {
  margin-top: 16px;
  margin-bottom: 16px;
  padding: 16px 18px;
}

.hero-label {
  margin: 0;
  color: var(--mint);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.hero-num {
  margin: 2px 0 0;
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--on-ink);
}

.hero-num.light { color: var(--on-ink); font-size: 2.1rem; }

.banner-title {
  margin: 4px 0 0;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--on-ink);
}

.hero-status {
  font-size: 1rem;
  font-weight: 500;
  color: var(--mint);
}

.hero-status.warn { color: var(--warning); }

.reconnect-banner {
  margin: 0 0 1rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: #fff4e5;
  border: 1px solid #f0c36a;
  color: #5c3b00;
}
.reconnect-banner strong { display: block; margin-bottom: 0.25rem; }
.reconnect-banner p { margin: 0 0 0.75rem; font-size: 0.9rem; line-height: 1.35; }
.reconnect-banner.hidden { display: none; }

.section-title {
  margin: 20px 0 8px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
}

.list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list-section {
  margin: 6px 2px 2px;
  padding: 8px 4px 2px;
  color: var(--teal-deep);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.list-section:first-child {
  margin-top: 0;
  padding-top: 0;
}

.row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
  box-shadow: none;
  transition: transform 0.12s ease, background 0.15s ease;
}

.row:hover {
  background: var(--surface);
}

.dash-row:active {
  transform: scale(0.985);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--offline);
  flex-shrink: 0;
}

.status-dot.on { background: var(--online); }

.row-body { min-width: 0; flex: 1; }

.row-body strong {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}

.row-body span {
  display: block;
  margin-top: 2px;
  font-size: 0.875rem;
  line-height: 1.35;
  color: var(--teal-deep);
}

.row-body span.on { color: var(--online); font-weight: 500; }

.chevron {
  color: color-mix(in srgb, var(--teal-deep) 70%, transparent);
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
}

.chevron svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.check {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 2px solid color-mix(in srgb, var(--teal) 40%, transparent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: transparent;
  font-size: 0.72rem;
  font-weight: 800;
}

.check.on {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--sand-deep);
  color: var(--teal);
  font-weight: 700;
  flex-shrink: 0;
}

.search-wrap { position: relative; margin-top: 16px; }

.search-ico {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--teal-deep);
}

.search-wrap input {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--teal) 35%, transparent);
  background: var(--surface);
  color: var(--ink);
  border-radius: 14px;
  padding: 14px 14px 14px 40px;
  font: inherit;
  outline: none;
}

.search-wrap input:focus { border-color: var(--teal); }

.meta {
  margin: 14px 0 8px;
  color: var(--teal-deep);
  font-size: 0.82rem;
  font-weight: 650;
}

.empty {
  display: none;
  margin: 12px 0 0;
  color: var(--teal-deep);
  font-size: 0.98rem;
  line-height: 1.45;
}

.empty.show { display: block; }

.icon-btn {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 12px;
  background: var(--surface);
  color: var(--teal);
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--line);
  flex-shrink: 0;
}

.icon-btn.mint {
  background: transparent;
  color: var(--mint);
  box-shadow: none;
  font-size: 1.35rem;
}

.icon-btn.spin { animation: spin 0.8s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

.linked-card {
  margin-top: 8px;
  padding: 24px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--mint) 45%, transparent);
  text-align: center;
}

.check-big {
  width: 56px;
  height: 56px;
  margin: 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--online) 18%, white);
  color: var(--online);
  font-size: 1.6rem;
  font-weight: 800;
}

.linked-card h2 {
  margin: 12px 0 6px;
  font-family: var(--display);
  font-size: 1.5rem;
}

.linked-card > p {
  margin: 0;
  color: var(--teal-deep);
  line-height: 1.4;
}

.method-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 6px;
  border-radius: 16px;
  background: var(--surface);
  margin-bottom: 18px;
  box-shadow: 0 0 0 1px var(--line);
}

.method-chip {
  border: 0;
  border-radius: 12px;
  padding: 14px 10px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.method-chip strong { font-size: 0.92rem; }
.method-chip > span:last-child {
  font-size: 0.78rem;
  color: var(--teal-deep);
}

.method-chip.active {
  background: var(--ink);
  color: var(--on-ink);
}

.method-chip.active > span:last-child {
  color: color-mix(in srgb, var(--mint) 85%, white);
}

.method-chip.active .method-ico { color: var(--mint); }

.method-ico {
  width: 24px;
  height: 24px;
  color: var(--teal-deep);
  display: grid;
  place-items: center;
}

.method-ico svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.panel {
  border-radius: 22px;
  background: var(--surface);
  padding: 18px;
  text-align: center;
  box-shadow: 0 0 0 1px var(--line);
}

.panel.panel-left { text-align: left; }

.panel h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--ink);
}

.panel-copy {
  margin: 8px 0 18px;
  color: var(--teal-deep);
  font-size: 0.92rem;
  line-height: 1.4;
}

.panel-copy.left { text-align: left; }

.field-label {
  display: block;
  margin: 12px 0 6px;
  color: var(--teal-deep);
  font-size: 0.78rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field-select,
.phone-row {
  width: 100%;
  border: 0;
  border-radius: 14px;
  background: var(--sand-deep);
  color: var(--ink);
  font: inherit;
  padding: 14px;
  outline: none;
}

.field-select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--teal) 50%),
    linear-gradient(135deg, var(--teal) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 3px), calc(100% - 12px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.phone-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
}

.dial-prefix {
  color: var(--teal-deep);
  font-weight: 650;
  flex-shrink: 0;
}

.phone-row input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  padding: 14px 0;
  outline: none;
  min-width: 0;
}

.code-block { margin-top: 8px; }

.code-verified {
  margin: 0 0 8px;
  color: var(--online);
  font-size: 0.88rem;
}

.code-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--ink);
}

.code-text {
  flex: 1;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mint);
}

.copy-hint {
  margin: 6px 0 0;
  color: var(--online);
  font-size: 0.88rem;
}

.next-step {
  margin: 16px 0 6px;
  color: var(--ink);
  font-size: 1rem;
}

.icon-btn.mint {
  position: relative;
  background: transparent;
  color: var(--mint);
  box-shadow: none;
  font-size: 1.35rem;
}

.spinner.mint {
  border-color: color-mix(in srgb, var(--mint) 25%, transparent);
  border-top-color: var(--mint);
  width: 18px;
  height: 18px;
  border-width: 2px;
}

.btn:disabled {
  opacity: 0.65;
  cursor: wait;
}

.qr-frame {
  width: min(280px, 100%);
  aspect-ratio: 1;
  margin: 0 auto 14px;
  border-radius: 24px;
  background: var(--ink);
  border: 2px solid color-mix(in srgb, var(--mint) 35%, transparent);
  padding: 18px;
  display: grid;
  place-items: center;
  position: relative;
}

.qr-frame.is-loading {
  animation: ring 1.2s ease-in-out infinite alternate;
}

.qr-frame.is-ready {
  border-color: color-mix(in srgb, var(--mint) 70%, transparent);
}

.qr-frame.is-idle {
  border-style: dashed;
  border-color: color-mix(in srgb, var(--mint) 28%, transparent);
  animation: none;
}

@keyframes ring {
  from { border-color: color-mix(in srgb, var(--mint) 25%, transparent); }
  to { border-color: color-mix(in srgb, var(--mint) 70%, transparent); }
}

.qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  padding: 10px;
  display: block;
}

/* Prevent broken-image flash: [hidden] must win over display:block */
.qr-frame img[hidden] {
  display: none !important;
}

.qr-placeholder {
  color: var(--on-ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 12px;
  text-align: center;
}

.qr-placeholder[hidden] {
  display: none !important;
}

.qr-idle-ico {
  color: color-mix(in srgb, var(--mint) 70%, white);
  opacity: 0.85;
}

.qr-idle-ico svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.qr-placeholder p {
  margin: 0;
  color: color-mix(in srgb, var(--mint) 80%, white);
  font-size: 0.9rem;
  max-width: 16ch;
  line-height: 1.35;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid color-mix(in srgb, var(--mint) 25%, transparent);
  border-top-color: var(--mint);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner.teal {
  border-color: color-mix(in srgb, var(--teal) 25%, transparent);
  border-top-color: var(--teal);
}

.text-btn {
  margin-top: 14px;
  border: 0;
  background: transparent;
  color: var(--teal);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.waiting-card {
  margin-top: 16px;
  padding: 16px;
  border-radius: 16px;
  background: var(--sand-deep);
  border: 1px solid color-mix(in srgb, var(--mint) 50%, transparent);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: waitPulse 0.9s ease-in-out infinite alternate;
}

@keyframes waitPulse {
  from { border-color: color-mix(in srgb, var(--mint) 30%, transparent); }
  to { border-color: color-mix(in srgb, var(--mint) 80%, transparent); }
}

.waiting-card strong { color: var(--ink); }
.waiting-card p {
  margin: 0;
  color: var(--teal-deep);
  font-size: 0.88rem;
  line-height: 1.4;
}

.link-debug {
  margin-top: 10px;
  padding: 8px 10px;
  max-height: 140px;
  overflow: auto;
  border-radius: 10px;
  background: #0f172a;
  color: #86efac;
  font: 11px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.error-text {
  margin-top: 10px;
  color: var(--warning);
  font-size: 0.9rem;
}

.btn {
  border: 0;
  border-radius: 14px;
  padding: 14px 16px;
  background: var(--teal);
  color: #fff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

.btn.danger {
  background: var(--danger);
  color: #fff;
  margin-top: 28px;
}

.btn.ghost {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 0 0 1px var(--line);
}

.btn.ghost.danger { color: var(--danger); }

.btn.block { width: 100%; }

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}

.setting-row strong {
  display: block;
  color: var(--ink);
  font-size: 1rem;
}

.setting-row span {
  display: block;
  margin-top: 4px;
  color: var(--teal-deep);
  font-size: 0.88rem;
  line-height: 1.35;
}

.setting-row input {
  width: 44px;
  height: 26px;
  accent-color: var(--teal);
  flex-shrink: 0;
}

.fineprint {
  margin-top: 18px;
  color: var(--teal-deep);
  font-size: 0.8rem;
  line-height: 1.45;
}

.fineprint.center { text-align: center; }

/* History sheet overlay */
.history-sheet {
  position: absolute;
  inset: 0;
  z-index: 40;
  background: var(--sand);
  overflow: auto;
  padding-bottom: 20px;
}

.history-inner { padding: 12px 20px 24px; }

.history-top {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 8px;
}

.history-head-text { min-width: 0; flex: 1; padding-top: 4px; }

.history-head-text h1 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.45rem;
  color: var(--ink);
}

.history-head-text p {
  margin: 4px 0 0;
  color: var(--teal-deep);
  font-size: 0.95rem;
}

.day-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin: 14px 0 16px;
  padding-bottom: 4px;
}

.chip {
  border: 0;
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 0 0 1px var(--line);
}

.chip.active {
  background: var(--teal);
  color: var(--on-ink);
  box-shadow: none;
}

.total-card {
  border-radius: 20px;
  background: var(--ink);
  padding: 18px 20px;
  color: var(--on-ink);
}

.total-label {
  margin: 4px 0 0;
  color: color-mix(in srgb, var(--on-ink) 65%, transparent);
  font-size: 0.9rem;
}

.came-online {
  margin: 6px 0 0;
  color: color-mix(in srgb, var(--mint) 90%, white);
  font-size: 0.9rem;
}

.session-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 95%, white);
  box-shadow: 0 0 0 1px var(--line);
}

.session-card .status-dot { margin-top: 5px; }

.session-card strong {
  display: block;
  font-size: 1rem;
  color: var(--ink);
}

.session-card .from { margin-top: 6px; color: var(--online); font-size: 0.95rem; }
.session-card .until { color: var(--offline); font-size: 0.95rem; }
.session-card .stayed {
  margin-top: 8px;
  color: var(--teal-deep);
  font-size: 0.88rem;
}

.nav {
  flex: 0 0 auto;
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 8px 8px calc(12px + env(safe-area-inset-bottom, 0px));
  background: color-mix(in srgb, var(--ink) 96%, transparent);
  border-top: 0;
  box-shadow: 0 -8px 24px color-mix(in srgb, var(--ink) 18%, transparent);
  z-index: 50;
}

.nav[hidden] {
  display: none !important;
}

.copy-code-sheet {
  position: absolute;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  background: color-mix(in srgb, var(--ink) 45%, transparent);
}
.copy-code-sheet.hidden { display: none !important; }
.copy-code-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border-radius: 20px;
  padding: 1.1rem 1rem 1.25rem;
  box-shadow: 0 16px 40px color-mix(in srgb, var(--ink) 25%, transparent);
}
.copy-code-label {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  color: var(--offline);
}
.copy-code-big {
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 1rem 0.75rem;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--sand-deep);
  color: var(--ink);
  cursor: pointer;
}
.copy-code-big.copied {
  background: color-mix(in srgb, var(--online) 22%, var(--sand-deep));
}
.copy-code-help {
  margin: 0.75rem 0 1rem;
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--ink);
}

.link-back {
  display: inline-flex;
  align-items: center;
  margin: 0 0 8px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--teal-deep);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}

.link-back.hidden {
  display: none;
}

.nav-btn {
  border: 0;
  background: transparent;
  color: color-mix(in srgb, var(--on-ink) 55%, transparent);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 500;
  min-height: 56px;
  padding: 8px 4px;
  border-radius: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-ico {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  line-height: 1;
}

.nav-ico svg {
  width: 22px;
  height: 22px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-btn.active {
  color: var(--mint);
  background: var(--teal-deep);
}

@media (min-width: 640px) {
  body {
    overflow: auto;
    padding: 16px 0;
  }

  .app {
    margin: 0 auto;
    height: calc(100dvh - 32px);
    height: calc(100svh - 32px);
    max-height: calc(100dvh - 32px);
    border-radius: 24px;
    box-shadow: 0 12px 40px color-mix(in srgb, var(--ink) 12%, transparent);
  }

  .history-sheet { border-radius: 24px; }
}