*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0b;
  --surface: #141416;
  --surface2: #1c1c1f;
  --border: #262629;
  --text: #e4e4e7;
  --muted: #7b7b82;
  --dim: #4a4a50;
  --run: #ff6b6b;
  --ride: #4ea8de;
  --swim: #48bfe3;
  --walk: #ffb347;
  --padel: #c084fc;
  --strength: #fb923c;
  --other: #6b7280;
  --accent: #a78bfa;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 20px 60px;
  line-height: 1.5;
}

.header {
  text-align: center;
  padding: 24px 0 16px;
}
.header h1 {
  font-size: 2.4em;
  font-weight: 800;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, #a78bfa, #4ea8de, #48bfe3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header p {
  color: var(--dim);
  font-size: 0.85em;
  margin-top: 8px;
  font-weight: 400;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 16px;
  padding: 4px;
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
}
.tab {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 10px 18px;
  min-width: 110px;
  text-align: center;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.88em;
  font-weight: 500;
  transition: all 0.2s;
}
.tab:hover { color: var(--text); background: var(--surface2); }
.tab.active {
  background: var(--surface2);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.count {
  display: inline-block;
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.7em;
  padding: 2px 7px;
  border-radius: 6px;
  margin-left: 6px;
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}
.tab.active .count { background: var(--border); color: var(--text); }
.tab.disabled { opacity: 0.3; pointer-events: none; }

.time-filter {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}
.filter-select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.85em;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237b7b82' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}
.filter-select:hover { border-color: var(--dim); }
.filter-select:focus { border-color: var(--accent); }
.filter-clear {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 0.85em;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.filter-clear:hover { border-color: #e74c3c; color: #e74c3c; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}
.stat-card:hover { border-color: var(--dim); }
.stat-num {
  font-size: 1.8em;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}
.stat-label {
  font-size: 0.78em;
  color: var(--muted);
  margin-top: 4px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-breakdown {
  grid-column: 1 / -1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-bar {
  display: flex;
  align-items: center;
  height: 30px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface2);
  position: relative;
}
.stat-fill {
  height: 100%;
  border-radius: 8px;
  min-width: 4px;
  transition: width 0.5s ease;
}
.stat-bar span {
  position: absolute;
  left: 12px;
  font-size: 0.8em;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  letter-spacing: -0.3px;
}

.loading {
  text-align: center;
  color: var(--muted);
  padding: 60px 20px;
  font-size: 0.95em;
}

.activity {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.activity:hover {
  border-color: #333;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.act-main {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}
.act-main:hover { background: var(--surface2); }

.act-icon {
  font-size: 2em;
  min-width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  border-radius: 12px;
}
.activity[data-type="Run"] .act-icon { background: color-mix(in srgb, var(--run) 15%, var(--surface2)); }
.activity[data-type="Ride"] .act-icon { background: color-mix(in srgb, var(--ride) 15%, var(--surface2)); }
.activity[data-type="Swim"] .act-icon { background: color-mix(in srgb, var(--swim) 15%, var(--surface2)); }
.activity[data-type="Walk"] .act-icon { background: color-mix(in srgb, var(--walk) 15%, var(--surface2)); }
.activity[data-type="Padel"] .act-icon { background: color-mix(in srgb, var(--padel) 15%, var(--surface2)); }
.activity[data-type="WeightTraining"] .act-icon { background: color-mix(in srgb, var(--strength) 15%, var(--surface2)); }

.act-info { flex: 1; min-width: 0; }
.act-name {
  font-weight: 700;
  font-size: 0.95em;
  letter-spacing: -0.2px;
}
.act-detail { font-size: 0.82em; color: var(--muted); margin-top: 3px; }
.act-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.act-date { font-size: 0.78em; color: var(--dim); white-space: nowrap; }
.act-expand {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.6em; color: var(--dim);
  background: var(--surface2);
  border-radius: 50%;
  transition: transform 0.25s, background 0.2s;
}
.act-expand.open {
  transform: rotate(180deg);
  background: var(--border);
  color: var(--muted);
}

.tag {
  display: inline-block;
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.68em;
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 5px;
  vertical-align: middle;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.act-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 20px 16px 78px;
}
.extra-item {
  background: var(--surface2);
  color: var(--muted);
  font-size: 0.76em;
  padding: 5px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-weight: 500;
  letter-spacing: -0.2px;
}
.ei.speed { color: #4ea8de; border-color: rgba(78,168,222,0.25); }
.ei.hr { color: #e74c3c; border-color: rgba(231,76,60,0.25); }
.ei.suffer { color: #fb923c; border-color: rgba(251,146,60,0.25); }
.ei.elev { color: #48bfe3; border-color: rgba(72,191,227,0.25); }
.ei.cadence { color: #a78bfa; border-color: rgba(167,139,250,0.25); }
.ei.power { color: #facc15; border-color: rgba(250,204,21,0.25); }
.ei.kudos { color: #f472b6; border-color: rgba(244,114,182,0.25); }
.ei.achieve { color: #fbbf24; border-color: rgba(251,191,36,0.25); }
.ei.pr { color: #c084fc; border-color: rgba(192,132,252,0.25); }
.ei.cal { color: #34d399; border-color: rgba(52,211,153,0.25); }
.ei.elapsed { color: var(--muted); border-color: var(--border); }
.extra-item:has(::before "PRs") { color: #fbbf24; border-color: rgba(251,191,36,0.2); }
.extra-empty { color: var(--dim); font-style: italic; background: transparent; border: none; }

.act-photos {
  width: 100%;
  margin-top: 8px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.act-photos img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}
.act-photos img:hover { transform: scale(1.05); box-shadow: 0 4px 16px rgba(0,0,0,0.5); }
.act-photos img.zoomed {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: auto;
  height: auto;
  max-width: 90vw;
  max-height: 90vh;
  z-index: 1000;
  border-radius: 14px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.8);
  cursor: zoom-out;
}

.act-analysis {
  width: 100%;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.analysis-title {
  font-size: 0.72em;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  font-weight: 700;
}
.analysis-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.card-section {
  font-size: 0.7em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 4px;
}
.card-content {
  font-size: 0.82em;
  color: #c4c4cc;
  line-height: 1.65;
}

.prev-link {
  width: 100%;
  margin-top: 8px;
  font-size: 0.78em;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 12px;
  background: var(--surface2);
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: background 0.15s;
}
.prev-link:hover { background: var(--border); color: #fff; }

.hr { color: var(--run); margin-left: 8px; font-weight: 600; }
.elev { color: var(--swim); margin-left: 6px; font-weight: 500; }
.act-meta { font-size: 0.73em; color: var(--dim); margin-top: 4px; }

@media (max-width: 600px) {
  body { padding: 16px 12px 40px; }
  .header { padding: 16px 0 12px; }
  .header h1 { font-size: 1.8em; }
  .tabs { grid-template-columns: repeat(2, 1fr); gap: 4px; }
  .tab { padding: 8px 12px; font-size: 0.8em; min-width: unset; }
  .stat-card { padding: 14px 10px; }
  .stat-num { font-size: 1.3em; }
  .act-main { padding: 12px 14px; gap: 10px; }
  .act-icon { font-size: 1.5em; min-width: 36px; height: 36px; border-radius: 10px; }
  .act-extra { padding: 0 14px 12px 60px; }
  .act-date { font-size: 0.7em; }
  .act-expand { width: 20px; height: 20px; }
}