:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --surface: #ffffff;
  --surface-soft: #edf5f1;
  --text: #25312d;
  --muted: #6d7772;
  --line: #d8ded8;
  --primary: #2f7666;
  --primary-dark: #245d52;
  --danger: #9a4f43;
  --shadow: 0 18px 42px rgba(48, 62, 55, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(237, 245, 241, 0.9), rgba(244, 247, 246, 0.72)),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  width: min(100%, 560px);
  margin: 0 auto;
  padding: 28px 16px 40px;
}

.app-header {
  padding: 12px 2px 22px;
}

.app-kicker {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 10vw, 3rem);
  line-height: 1.1;
}

h2 {
  margin-bottom: 6px;
  font-size: 1.45rem;
  line-height: 1.25;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.app-lead,
.panel-heading p,
.signed-in-text,
.placeholder-box p {
  color: var(--muted);
}

.panel {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel-heading {
  margin-bottom: 20px;
}

.notice {
  display: grid;
  gap: 4px;
  margin-bottom: 18px;
  border: 1px solid #ead8c8;
  border-radius: 8px;
  background: #fff5ec;
  color: #6d4733;
  padding: 12px;
  font-size: 0.92rem;
}

.notice[hidden] {
  display: none;
}

.notice code {
  font-size: 0.9em;
}

.auth-form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 12px 13px;
}

input {
  min-height: 48px;
}

textarea {
  min-height: 190px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 118, 102, 0.14);
  outline: none;
}

button {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  padding: 12px 16px;
}

button:hover {
  background: var(--primary-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.secondary-button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary-dark);
}

.secondary-button:hover {
  background: var(--surface-soft);
}

.danger-button {
  border: 1px solid rgba(154, 79, 67, 0.28);
  background: #fff6f4;
  color: var(--danger);
}

.danger-button:hover {
  background: #fbe7e2;
}

.reset-all-button {
  justify-self: start;
  min-height: auto;
  margin-top: -8px;
  border: 0;
  background: transparent;
  color: var(--danger);
  padding: 2px 0;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: underline;
}

.reset-all-button:hover {
  background: transparent;
  color: #7d3f36;
}

.message {
  min-height: 1.5em;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.message:empty {
  display: none;
}

.message.is-error {
  color: var(--danger);
}

.message.is-success {
  color: var(--primary-dark);
}

.home-panel {
  display: grid;
  gap: 18px;
}

.home-panel[hidden],
#graph-view[hidden],
#body-size-comparison-view[hidden],
#goals-view[hidden],
#report-view[hidden],
#record-view[hidden],
#auth-view[hidden] {
  display: none;
}

.home-top {
  display: grid;
  gap: 18px;
}

.home-top h2 {
  margin-bottom: 0;
}

.home-top .secondary-button {
  width: 100%;
}

.date-panel {
  display: grid;
  gap: 12px;
}

.date-panel .secondary-button {
  width: 100%;
}

.calendar-panel {
  display: grid;
  gap: 10px;
}

.home-actions-panel {
  display: grid;
  gap: 10px;
}

.home-action-buttons {
  display: grid;
  gap: 10px;
}

.top-action-buttons {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.top-action-buttons .secondary-button {
  min-height: 42px;
  padding: 8px 10px;
  font-size: 0.92rem;
}

.home-report-action {
  display: flex;
  justify-content: flex-start;
  margin-top: -4px;
}

.compact-action-button {
  width: auto;
  min-height: 42px;
  padding: 8px 10px;
  font-size: 0.92rem;
}

.graph-panel {
  display: grid;
  gap: 18px;
}

.graph-top {
  display: grid;
  gap: 14px;
}

.graph-top h2 {
  margin-bottom: 0;
}

.graph-range-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.range-button {
  min-height: 42px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary-dark);
  padding: 8px 10px;
  font-size: 0.92rem;
}

.range-button:hover,
.range-button.is-active {
  background: var(--surface-soft);
}

.range-button.is-active {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 118, 102, 0.12);
}

.graph-axis-note {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.chart-wrap {
  position: relative;
  width: 100%;
  min-height: 300px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.chart-wrap[hidden] {
  display: none;
}

.chart-wrap canvas {
  width: 100% !important;
  height: 300px !important;
}

.report-panel {
  display: grid;
  gap: 18px;
}

.report-top {
  display: grid;
  gap: 12px;
}

.report-top h2 {
  margin-bottom: 0;
}

.report-type-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.report-period-controls {
  display: grid;
  align-items: center;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.report-period-controls[hidden],
.report-results[hidden] {
  display: none;
}

.report-period-label {
  order: -1;
  grid-column: 1 / -1;
  margin: 0;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 800;
  text-align: center;
}

.report-results {
  display: grid;
  gap: 14px;
}

.report-card {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.report-card h3,
.report-card h4 {
  margin: 0;
}

.report-card h3 {
  font-size: 1.05rem;
}

.report-card h4 {
  color: var(--muted);
  font-size: 0.88rem;
}

.report-metric-group {
  display: grid;
  gap: 12px;
}

.report-stat-list {
  display: grid;
  gap: 8px;
  margin: 0;
}

.report-stat-row {
  display: grid;
  grid-template-columns: minmax(96px, 1fr) auto;
  gap: 10px;
  align-items: baseline;
}

.report-stat-row dt,
.report-stat-row dd {
  margin: 0;
}

.report-stat-row dt {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.report-stat-row dd {
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 800;
  text-align: right;
}

.body-size-comparison-panel {
  display: grid;
  gap: 18px;
}

.body-size-month-nav {
  display: grid;
  align-items: center;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.body-size-month-nav .secondary-button {
  min-height: 40px;
  padding: 8px 10px;
}

.body-size-month-label {
  order: -1;
  grid-column: 1 / -1;
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  text-align: center;
}

.body-size-comparison-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.body-size-comparison-table {
  width: 100%;
  min-width: 440px;
  border-collapse: collapse;
}

.body-size-comparison-table th,
.body-size-comparison-table td {
  border-top: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  white-space: nowrap;
}

.body-size-comparison-table thead th {
  border-top: 0;
  background: #f8fbf9;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.body-size-comparison-table tbody th {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 800;
}

.body-size-comparison-table td {
  font-size: 0.9rem;
  font-weight: 700;
}

.body-size-comparison-actions {
  display: grid;
  gap: 10px;
}

.goals-panel {
  display: grid;
  gap: 18px;
}

.goals-form,
.goals-section {
  display: grid;
  gap: 14px;
}

.goals-section h3 {
  margin-bottom: 0;
}

.goals-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.goals-row {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(66px, 0.9fr) minmax(90px, 1fr) minmax(96px, 1.1fr);
  gap: 8px;
  border-top: 1px solid var(--line);
  padding: 10px;
}

.goals-row:first-child {
  border-top: 0;
}

.goals-header {
  background: #f8fbf9;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.goal-input-wrap {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.goal-input-wrap input {
  min-width: 0;
  min-height: 42px;
  padding: 8px 9px;
}

.goal-current-value {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
}

.goal-diff {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
}

.goals-actions {
  display: grid;
  gap: 10px;
}

.calendar-header {
  display: grid;
  align-items: center;
  gap: 10px;
  grid-template-columns: auto 1fr auto;
}

.calendar-header h3 {
  margin: 0;
  text-align: center;
}

.calendar-nav-button {
  min-height: 40px;
  padding: 8px 10px;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 4px;
}

.calendar-weekdays span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-align: center;
}

.calendar-day {
  display: grid;
  align-content: start;
  gap: 3px;
  min-height: 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 6px 4px;
  text-align: left;
}

.calendar-day:hover {
  background: var(--surface-soft);
}

.calendar-day.is-empty {
  border-color: transparent;
  background: transparent;
  cursor: default;
}

.calendar-day.is-today {
  border-color: var(--primary);
}

.calendar-day.is-selected {
  background: #dfeee9;
  border-color: var(--primary-dark);
}

.calendar-day.period-day {
  background: #fff0f3;
}

.calendar-day.period-day.is-selected {
  background: #f6dfe5;
}

.calendar-day-number {
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1;
}

.calendar-markers {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  min-height: 1.15em;
  font-size: 0.78rem;
  line-height: 1.1;
}

.record-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--primary);
}

.record-summary {
  display: grid;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbf9;
  padding: 14px;
}

#record-summary-panel {
  display: none !important;
}

.summary-label {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.summary-date {
  margin-bottom: 8px;
  font-size: 1.22rem;
  font-weight: 800;
}

.status-pill {
  justify-self: start;
  margin: 0;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 0.92rem;
  font-weight: 800;
  padding: 6px 12px;
}

.placeholder-box {
  border: 1px dashed #b9c8c1;
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 18px;
}

.record-panel {
  display: grid;
  gap: 16px;
}

.record-display-panel {
  display: grid;
  gap: 16px;
}

.record-display-panel[hidden],
.record-form[hidden] {
  display: none;
}

.record-display-text {
  overflow-wrap: anywhere;
  overflow-x: auto;
  min-height: 190px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
  padding: 12px 13px;
  white-space: pre-wrap;
}

.record-form {
  display: grid;
  gap: 16px;
}

.form-section {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbf9;
  padding: 16px;
}

.form-section h3 {
  margin-bottom: 0;
}

@media (min-width: 520px) {
  .app-shell {
    padding-top: 44px;
  }

  .home-top {
    align-items: start;
    grid-template-columns: 1fr auto;
  }

  .home-top .secondary-button {
    width: auto;
  }

  .date-panel {
    align-items: end;
    grid-template-columns: 1fr auto;
  }

  .date-panel .secondary-button {
    width: auto;
  }

  .graph-top {
    align-items: start;
    grid-template-columns: 1fr auto;
  }

  .report-top {
    align-items: start;
    grid-template-columns: 1fr auto;
  }

  .report-type-buttons {
    max-width: 360px;
  }

  .report-period-controls {
    grid-template-columns: auto minmax(180px, 1fr) auto;
  }

  .report-period-label {
    order: 0;
    grid-column: auto;
  }

  .report-metric-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chart-wrap {
    min-height: 340px;
  }

  .chart-wrap canvas {
    height: 340px !important;
  }
}