*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --bg: #eef4ef;
  --paper: #f7faf7;
  --ink: #1c2b24;
  --muted: #6b7c73;
  --accent: #3d6b5a;
  --accent-dark: #2f5d4c;
  --white: #ffffff;
  --border: #cfe0d6;
  --danger: #a33b32;
  --overtime: #8a6a3a;
  --safe-top: 0px;
  --safe-top: constant(safe-area-inset-top);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: 0px;
  --safe-right: constant(safe-area-inset-right);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: 0px;
  --safe-bottom: constant(safe-area-inset-bottom);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: 0px;
  --safe-left: constant(safe-area-inset-left);
  --safe-left: env(safe-area-inset-left, 0px);
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  min-height: max(100vh, 100dvh);
}

html.standalone {
  background: var(--accent);
}

html.standalone,
html.standalone body {
  overscroll-behavior: none;
}

a { color: var(--accent-dark); }

.update-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: calc(0.5rem + var(--safe-top)) 1rem 0.5rem;
  background: #e3efe8;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

html.standalone .update-banner {
  padding-top: calc(0.5rem + 59px);
  padding-top: calc(0.5rem + max(env(safe-area-inset-top, 0px), 59px));
}

.update-banner[hidden],
.install-banner[hidden],
[hidden] {
  display: none !important;
}

.install-banner {
  max-width: 480px;
  width: calc(100% - 2rem);
  margin: 0.75rem auto 0;
  padding: 0.85rem 1rem;
  background: #e3efe8;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center;
}

.install-banner p {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  line-height: 1.45;
}

.install-banner .install-steps {
  color: var(--muted);
  font-size: 0.85rem;
}

html.standalone .install-banner {
  display: none !important;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: calc(0.75rem + var(--safe-top)) calc(1rem + var(--safe-right)) 0.75rem calc(1rem + var(--safe-left));
  background: var(--accent);
  color: var(--white);
  border-bottom: 1px solid var(--accent-dark);
}

body:has(.update-banner:not([hidden])) .top-bar {
  padding-top: 0.75rem;
}

html.standalone .top-bar {
  padding-top: calc(0.75rem + 59px);
  padding-top: calc(0.75rem + max(env(safe-area-inset-top, 0px), 59px));
}

html.standalone body:has(.update-banner:not([hidden])) .top-bar {
  padding-top: 0.75rem;
}

.top-title { font-weight: 700; }
.top-actions { display: flex; align-items: center; gap: 0.5rem; }
.whoami { font-size: 0.8rem; color: #d7ebe2; }

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-size: 0.95rem;
  cursor: pointer;
  font-weight: 600;
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--border);
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent-dark);
}

.top-bar .btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-secondary {
  background: var(--white);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: transparent;
}

.btn-small { font-size: 0.8rem; padding: 0.3rem 0.65rem; }
.btn-large { padding: 0.95rem 2rem; font-size: 1.1rem; min-width: 200px; }
.btn-start, #btn-stop { width: min(320px, calc(100% - 2rem)); display: block; margin: 0 auto; }

.screen {
  padding: calc(2.5rem + var(--safe-top)) calc(1rem + var(--safe-right)) 2rem calc(1rem + var(--safe-left));
  text-align: center;
  max-width: 420px;
  margin: 0 auto;
}

html.standalone .screen {
  padding-top: calc(2.5rem + 59px);
  padding-top: calc(2.5rem + max(env(safe-area-inset-top, 0px), 59px));
}

.login-form, .user-form {
  display: grid;
  gap: 0.65rem;
}

.login-form input, .user-form input, .custom-time input {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--white);
  color: var(--ink);
}

.error-text { color: var(--danger); }
.subtitle, .hint { color: var(--muted); line-height: 1.5; }
.hint { font-size: 0.9rem; margin: 0.35rem 0 0; }

.setup, .sitting {
  max-width: 420px;
  margin: 0 auto;
  padding: 1.25rem 1rem calc(2.5rem + var(--safe-bottom));
}

.setup section, .login-link-box {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  margin: 0 0 1rem;
}

.setup h2 {
  margin: 0 0 0.65rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.streak-card {
  text-align: center;
}

.streak-count {
  font-size: 3rem;
  font-weight: 650;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.streak-label {
  color: var(--muted);
  margin: 0.2rem 0 0.85rem;
}

.week-dots {
  display: flex;
  justify-content: space-between;
  gap: 0.35rem;
}

.week-dot {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  color: var(--muted);
}

.week-dot span {
  display: block;
  width: 0.7rem;
  height: 0.7rem;
  margin: 0 auto 0.25rem;
  border-radius: 50%;
  background: #d5e4db;
}

.week-dot.done span {
  background: var(--accent);
}

.presets, .sounds {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip, .sound {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}

.chip.on, .sound.on {
  background: var(--accent);
  border-color: var(--accent-dark);
  color: var(--white);
}

.sound {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sound > button:first-child {
  border: none;
  background: transparent;
  font: inherit;
  font-weight: 600;
  color: inherit;
  cursor: pointer;
  padding: 0;
}

.sound .preview {
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 500;
  font-size: 0.8rem;
}

.custom-time {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.custom-time label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.sit-log {
  display: grid;
  gap: 0.45rem;
}

.sit-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.92rem;
}

.sit-row .when { color: var(--muted); }
.sit-row.early .dur { color: var(--muted); }

.sitting {
  min-height: calc(100dvh - 4rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.sitting.overtime .clock,
.sitting.overtime .phase {
  color: var(--overtime);
}

.sitting.overtime .ring-progress {
  stroke: var(--overtime);
}

.sitting.settling .clock,
.sitting.settling .phase {
  color: var(--muted);
}

.ring-wrap {
  position: relative;
  width: min(280px, 72vw);
  height: min(280px, 72vw);
  margin-bottom: 1rem;
}

.ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-track,
.ring-progress {
  fill: none;
  stroke-width: 8;
}

.ring-track { stroke: #d5e4db; }
.ring-progress {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-dasharray: 552.92;
  stroke-dashoffset: 0;
  transition: stroke 0.4s ease;
}

.ring-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.clock {
  font-size: 3.1rem;
  font-weight: 620;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.phase {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.login-panel, .admin-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1rem calc(2rem + var(--safe-bottom));
}

.login-panel { max-width: 360px; margin: 3rem auto; }
.user-table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.user-table th, .user-table td { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--border); }
.row-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.login-link-box {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
}

.login-link-box input {
  width: 100%;
  font-size: 0.85rem;
}