:root {
  --gray-50: #f8f8f8;
  --gray-100: #f0f0ee;
  --gray-200: #e3e2e0;
  --gray-300: #d4d3d0;
  --gray-400: #a0a09b;
  --gray-500: #787774;
  --gray-600: #5c5b59;
  --gray-700: #434240;
  --gray-800: #2c2c2a;
  --gray-900: #1a1a19;
  --gray-950: #0d0d0d;
  --red: rgb(237, 56, 0);
  --link-blue: #0033CC;
  --font-primary: "Inter", sans-serif;
  --font-mono: "Inter", sans-serif;
  --font-size-base: 15px;
  --font-weight-base: 400;
  --font-weight-bold: 500;
  --line-height-base: 1.4;
  --border-radius: 2px;
  --max-width: 1100px;
}


:root {
  font-family: Inter, sans-serif;
  font-feature-settings: 'liga' 1, 'calt' 1; /* fix for Chrome */
}
@supports (font-variation-settings: normal) {
  :root { font-family: InterVariable, sans-serif; }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: white;
  color: #000;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-base);
  line-height: var(--line-height-base);
}

.container {
  width: var(--max-width);
  max-width: 100%;
  margin: 0 auto;
  background: white;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

h1 {
  font-size: 15px;
  font-weight: var(--font-weight-bold);
  margin: 0;
  padding: 0;
  color: #000;
}

a {
  color: var(--link-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.card {
  background: white;
  margin: 0;
  padding: 12px 0;
}

.upload-area {
  border: 2px dashed var(--gray-300);
  padding: 24px 16px;
  text-align: center;
  margin: 8px 0;
  background: var(--gray-50);
  cursor: pointer;
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: var(--gray-600);
  background: var(--gray-100);
}

.file-input {
  display: none;
}

.error {
  color: var(--red);
  border-left: 3px solid var(--red);
  padding: 6px 10px;
  background: #fff5f3;
  margin: 8px 0;
  font-size: 14px;
}

.loading {
  color: #000;
  font-style: italic;
  font-size: 14px;
  margin: 8px 0;
}

.hidden {
  display: none;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 0;
}

tbody {
  border-top: 0;
}

th {
  text-align: left;
  padding: 6px 8px;
  background: var(--gray-100);
  border-bottom: 1px solid var(--gray-300);
  font-weight: var(--font-weight-bold);
  font-size: 13px;
  color: #000;
}

td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--gray-200);
  color: #000;
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
}

tr:last-child td {
  border-bottom: none;
}



.section-title {
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  color: #000;
  margin: 0;
  padding-bottom: 4px;
  border-bottom: 1px solid #000;
}

.data-row {
  display: flex;
  gap: 8px;
  padding: 2px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--gray-200);
}

.data-pair-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--gray-200);
  position: relative;
}

.data-pair-row::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--gray-200);
}

.data-row:last-child,
.session-fields > :last-child {
  border-bottom: none;
}

.data-label {
  color: #666;
  min-width: 88px;
  flex-shrink: 0;
}

.data-value {
  color: #000;
  font-family: var(--font-mono);
  font-size: calc(1em - 0.05em);
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.012em;
}

.no-data {
  color: #000;
  font-style: italic;
  padding: 16px 0;
  font-size: 14px;
}

/* Single-column layout — top horizontal nav + centered content */
.page-layout {
  display: flex;
  flex-direction: column;
}

.page-layout > .container {
  margin: 24px auto;
}

/* ── Two-column layout: page scrolls, centered cap, sticky map ── */
.activity-layout {
  background: white;
}
.activity-grid {
  background: white;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}
.activity-map-col {
  min-width: 0;
  align-self: start;
  aspect-ratio: 1 / 1;
}
.activity-map-col--wide {
  grid-column: span 2;
  aspect-ratio: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.activity-map-col--wide > #map-desktop {
  height: auto;
  aspect-ratio: 16 / 9;
}
.activity-tables {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.activity-charts {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}
.activity-map-col > #map-desktop {
  width: 100%;
  height: 100%;
}
.activity-data-col {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}
.activity-data-col > * {
  flex-shrink: 0;
}

.index-data-col {
  grid-column: span 2;
  padding: 0;
}

.index-data-col table {
  width: 100%;
}

.index-data-col td:first-child,
.index-data-col th:first-child {
  padding-left: 0;
}

.index-data-col td:last-child,
.index-data-col th:last-child {
  padding-right: 0;
}

.index-data-col td {
  white-space: nowrap;
}

.index-data-col .td-name {
  width: 100%;
  white-space: normal;
}

@media (max-width: 900px) {
  .activity-grid {
    grid-template-columns: 1fr;
    padding: 16px;
  }
  .activity-header {
    order: -2;
  }
  .activity-map-col,
  .activity-map-col--wide {
    grid-column: 1 / -1;
    height: 360px;
    aspect-ratio: auto;
    order: -1;
  }
  .activity-map-col--wide {
    height: auto;
  }
  .index-data-col {
    grid-column: auto;
  }
}

/* Top horizontal nav */
.page-nav {
  background: white;
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 10;
}

.page-nav-inner {
  width: var(--max-width);
  max-width: 100%;
  margin: 0 auto;
  padding: 8px 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
}

.page-nav-inner--wide {
  width: 1100px;
  padding-left: 24px;
  padding-right: 24px;
}

.page-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-600);
  text-decoration: none;
  white-space: nowrap;
}

.page-nav a:hover {
  color: var(--gray-400);
}

.nav-upload {
  all: unset;
  margin-left: auto;
  background: var(--gray-950);
  color: white;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
}

.nav-upload:hover {
  background: var(--gray-800);
}

.nav-btn {
  all: unset;
  font-size: 14px;
  color: var(--gray-500);
  cursor: pointer;
  white-space: nowrap;
}

.nav-btn:hover {
  text-decoration: underline;
}

/* ── Utilities ────────────────────────────────────── */
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ── Error toast ──────────────────────────────────── */
.error-toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
}

/* ── Activity list table ──────────────────────────── */
.th-icon { width: 28px; }
.td-icon {
  text-align: left;
  vertical-align: middle;
  padding-right: 12px;
  width: 16px;
}
.td-name {
  padding-left: 0;
}

.td-action {
  padding-left: 12px;
  padding-right: 0px;
}

.td-action a {
  color: var(--gray-600);
}
.sport-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Card variants ────────────────────────────────── */
.card--flush { padding: 0; }
.card--session { padding-top: 0; padding-bottom: 0; }
.card--map { padding: 0; overflow: hidden; height: 360px; }
.card--map > #map-desktop { width: 100%; height: 100%; }

/* ── Activity header (static fields) ──────────────── */
.activity-header {
  grid-column: 1 / -1;
  padding: 4px 0 12px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.activity-header-text {
  min-width: 0;
}
.activity-title {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  margin: 0 0 2px;
}
.activity-meta {
  font-size: 12px;
  color: var(--gray-500);
}

/* ── Metrics table (avg/max) ──────────────────────── */
.metrics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.metrics-table th {
  background: none;
  color: #000;
  font-weight: 600;
  font-size: 12px;
  padding: 2px 12px;
  border-bottom: 1px solid var(--gray-200);
}
.metrics-table td {
  padding: 2px 12px;
  border-bottom: 1px solid var(--gray-200);
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.012em;
  color: #000;
}
.metrics-table td:first-child {
  font-family: var(--font-primary);
  color: #000;
}
.metrics-table tr:last-child td {
  border-bottom: none;
}

.stat-unit {
  font-size: 13px;
  font-weight: var(--font-weight-base);
  margin-left: 1px;
}
.card--charts {
  overflow: hidden;
  padding-left: 0;
  padding-right: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.elevation-wide {
  width: 100%;
  padding: 0;
  box-sizing: border-box;
}
.profile-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0;
}
.profile-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.smoothing-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  font-size: 12px;
  color: #333;
  cursor: default;
}
.smoothing-control input[type="range"] {
  -webkit-appearance: none;
  width: 80px;
  background: transparent;
  cursor: pointer;
  --slider-track-size: 3px;
  --slider-track-hit: 12px;
  --slider-knob-size: 10px;
  --slider-bg: var(--gray-300);
  --slider-fg: var(--gray-950);
  --slider-surface: #fff;
  margin: 0;
}
.smoothing-control input[type="range"]:focus {
  outline: none;
}
.smoothing-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  border: 0;
  height: var(--slider-knob-size);
  width: var(--slider-knob-size);
  border-radius: var(--slider-knob-size);
  background: var(--slider-fg);
  box-shadow: 0 0 0 2px var(--slider-surface);
  margin-top: calc((var(--slider-knob-size) - var(--slider-track-hit)) / 2);
}
.smoothing-control input[type="range"]::-moz-range-thumb {
  border: 0;
  height: var(--slider-knob-size);
  width: var(--slider-knob-size);
  border-radius: var(--slider-knob-size);
  background: var(--slider-fg);
  box-shadow: 0 0 0 2px var(--slider-surface);
}
.smoothing-control input[type="range"]::-webkit-slider-runnable-track {
  box-sizing: border-box;
  width: 100%;
  height: var(--slider-track-hit);
  background: var(--slider-bg);
  border-radius: var(--slider-track-hit);
  border: calc((var(--slider-track-hit) - var(--slider-track-size)) / 2) solid var(--slider-surface);
}
.smoothing-control input[type="range"]::-moz-range-track {
  box-sizing: border-box;
  width: 100%;
  height: var(--slider-track-hit);
  background: var(--slider-bg);
  border-radius: var(--slider-track-size);
  border: calc((var(--slider-track-hit) - var(--slider-track-size)) / 2) solid var(--slider-surface);
}
#elevationSmoothingValue {
  font-family: var(--font-mono);
  font-size: 12px;
  min-width: 4ch;
  text-align: right;
}
.card--power { overflow: hidden; padding-left: 8px; padding-right: 8px;.c }
.chart-description { margin: 0; padding: 0 4px 4px; font-size: 12px; color: #666; line-height: 1.3; max-width: 66.6667%; }
.chart-stats { padding: 0 4px; margin-bottom: -8px; font-size: 12px; color: #000; font-family: var(--font-mono); font-feature-settings: "tnum" 1; display: grid; grid-template-columns: max-content max-content; column-gap: 6px; row-gap: 2px; }
.chart-stats-label { color: #666; text-align: right; }
.card--debug {
  font-family: var(--font-mono);
  font-size: 12px;
  padding-left: 16px;
  padding-right: 16px;
}
.card--padded {
  padding: 12px 16px;
  overflow: hidden;
}

/* ── Card header ──────────────────────────────────── */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

/* ── Section title modifier ───────────────────────── */
.section-title--flush { margin: 0; }

/* ── Data row modifier ────────────────────────────── */
.data-row--no-border { border-bottom: none; }

/* ── Zone table ───────────────────────────────────── */
.zone-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 8px;
}
.zone-row {
  display: grid;
  grid-template-columns: 24px 90px 1fr 72px;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
.zone-label { font-weight: 700; }
.zone-name {
  color: #000;
  white-space: nowrap;
}
.zone-bar-bg {
  background: var(--gray-100);
  height: 5px;
  border-radius: 1px;
}
.zone-bar-fill {
  height: 100%;
  border-radius: 1px;
}
.zone-duration {
  color: #000;
  font-family: var(--font-mono);
  white-space: nowrap;
  padding-left: 6px;
}

/* ── Chart legend ─────────────────────────────────── */
.chart-legend {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray-500);
}
.legend-line {
  display: inline-block;
  width: 16px;
  height: 2px;
  vertical-align: middle;
  margin-right: 4px;
}

.card--charts figure {
  margin: 0;
}
.td-effort {
  width: 68px;
  padding-right: 8px;
  vertical-align: middle;
}
.effort-mini-track {
  width: 60px;
  height: 14px;
}
.effort-mini-fill {
  height: 100%;
}
.card--charts svg {
  font-feature-settings: "tnum" 1;
}
.chart-scroll {
  overflow-x: auto;
}

/* ── Stats controls ───────────────────────────────── */
.stats-controls {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 8px;
}

/* ── Period picker ────────────────────────────────── */
.period-picker {
  display: flex;
  gap: 0;
}

/* ── Histogram radio picker (Observable-style) ────── */
.histogram-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: #333;
}
.histogram-radio {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.histogram-radio input {
  margin: 0;
}
input[type="checkbox"] {
  --checkbox-size: 12px;
  --checkbox-handle-size: 10px;
  --checkbox-border: 0px;
  --checkbox-bg: var(--gray-300);
  --checkbox-bg-checked: var(--gray-950);
  --checkbox-fg: #ffffff;
  flex: 0 0 auto;
  margin: 4px 0;
  margin-right: 0px;
  margin-left: 0px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  user-select: none;
  -moz-user-select: none;
  -webkit-user-select: none;
  background: none;
  background-color: rgba(0, 0, 0, 0);
  border: none;
  background-color: var(--checkbox-bg);
  border: var(--checkbox-border) solid var(--checkbox-bg);
  box-sizing: border-box;
  width: calc(var(--checkbox-size) * 2);
  height: var(--checkbox-size);
  border-radius: var(--checkbox-size);
  position: relative;
  transition: all 168ms ease-out;
  cursor: pointer;
}
input[type="checkbox"]::after {
  --padding: calc(calc(calc(var(--checkbox-size) - var(--checkbox-handle-size)) / 2) - var(--checkbox-border));
  content: "";
  background: var(--checkbox-fg);
  display: block;
  position: absolute;
  left: var(--padding);
  top: var(--padding);
  width: var(--checkbox-handle-size);
  height: var(--checkbox-handle-size);
  border-radius: var(--checkbox-handle-size);
  transform: translate(0, 0);
  transition: all 90ms ease-out;
}
input[type="checkbox"]:checked {
  background-color: var(--checkbox-bg-checked);
  border-color: var(--checkbox-bg-checked);
}
input[type="checkbox"]:checked::after {
  transform: translate(var(--checkbox-size), 0);
}
input[type="radio"] {
  --radio-size: 14px;
  --radio-dot-size: 6px;
  --radio-bg: var(--gray-300);
  --radio-bg-checked: var(--gray-300);
  --radio-fg: var(--gray-950);
  --radio-border-checked: var(--gray-300);
  flex: 0 0 auto;
  margin: 4px 0;
  margin-right: 0px;
  margin-left: 0px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  user-select: none;
  -moz-user-select: none;
  -webkit-user-select: none;
  background-color: var(--radio-bg);
  border: none;
  box-sizing: border-box;
  width: var(--radio-size);
  height: var(--radio-size);
  border-radius: var(--radio-size);
  position: relative;
  transition: all 168ms ease-out;
  cursor: pointer;
}
input[type="radio"]::after {
  content: "";
  background: var(--radio-fg);
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--radio-dot-size);
  height: var(--radio-dot-size);
  border-radius: var(--radio-dot-size);
  transform: translate(-50%, -50%) scale(0);
  transition: all 90ms ease-out;
}
input[type="radio"]:checked {
  background-color: var(--radio-bg-checked);
  box-shadow: inset 0 0 0 1px var(--radio-border-checked);
}
input[type="radio"]:checked::after {
  transform: translate(-50%, -50%) scale(1);
}
.period-btn {
  font-size: 12px;
  padding: 2px 7px;
  border: 1px solid #ccc;
  border-left: none;
  background: none;
  cursor: pointer;
  color: #555;
  font-family: inherit;
}
.period-btn:first-child {
  border-left: 1px solid #ccc;
}
.period-btn--active {
  background: #333;
  color: #fff;
  border-color: #333;
  border-left: 1px solid #333;
  margin-left: -1px;
  position: relative;
}
.period-btn--active:first-child {
  margin-left: 0;
  border-left: 1px solid #333;
}
.period-btn:hover:not(.period-btn--active) {
  background: #f0f0f0;
}

/* ── Debug section ────────────────────────────────── */
.debug-session { margin-bottom: 8px; }

/* ── Map ──────────────────────────────────────────── */
#map-desktop {
  width: 100%;
  height: 100%;
}

/* ── Subsection overlay value (stats card) ────────── */
.stats-subset {
  color: #b8860b;
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.012em;
}
.stats-base-hidden {
  position: relative;
  color: transparent;
}
.stats-base-hidden > .stats-subset {
  position: absolute;
  right: 0;
  top: 0;
  white-space: nowrap;
}

/* ── Login form ───────────────────────────────────── */
.login-wrap {
  display: flex;
  justify-content: center;
  padding: 80px 16px;
}

.login-form {
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-form h1 {
  margin-bottom: 8px;
}

.login-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
}

.login-input {
  width: 100%;
  font-family: var(--font-primary);
  font-size: 14px;
  padding: 6px 8px;
  border: 1px solid var(--gray-300);
  background: white;
  color: var(--gray-900);
  outline: none;
}

.login-input:focus {
  border-color: var(--gray-600);
}

.login-btn {
  margin-top: 8px;
  font-family: var(--font-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 12px;
  background: var(--gray-950);
  color: white;
  border: none;
  cursor: pointer;
  width: 100%;
}

.login-btn:hover {
  background: var(--gray-800);
}