:root {
  color-scheme: dark;
  --bg: #050914;
  --panel: rgba(11, 18, 36, 0.82);
  --panel-solid: #0f172a;
  --border: rgba(148, 163, 184, 0.22);
  --accent: #60a5fa;
  --accent-strong: #3b82f6;
  --ink: #e2e8f0;
  --muted: rgba(226, 232, 240, 0.72);
  font-family: 'Inter', 'Segoe UI', sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(56, 189, 248, 0.16) 0, transparent 55%),
    radial-gradient(circle at 74% 8%, rgba(129, 140, 248, 0.14) 0, transparent 50%), var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
header {
  padding: 14px clamp(12px, 4vw, 28px) 18px;
  background: linear-gradient(90deg, rgba(9, 13, 26, 0.85), rgba(17, 24, 39, 0.9));
  border-bottom: 1px solid rgba(37, 99, 235, 0.22);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}
header h1 {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.4vw, 22px);
  letter-spacing: 0.04em;
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.controls label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.controls input,
.controls select,
.controls button {
  background: rgba(8, 14, 31, 0.86);
  color: var(--ink);
  border: 1px solid rgba(59, 130, 246, 0.26);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 13px;
}
.controls input[type='range'] {
  width: 160px;
}
.controls button {
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}
.controls button:hover {
  background: rgba(37, 99, 235, 0.32);
  transform: translateY(-1px);
}
main {
  flex: 1;
  display: flex;
  min-height: 0;
}
#sidebar {
  width: clamp(280px, 28vw, 360px);
  padding: 18px 16px 28px;
  border-right: 1px solid rgba(37, 99, 235, 0.12);
  background: rgba(9, 13, 26, 0.82);
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}
#content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.section {
  display: grid;
  gap: 12px;
}
.section h2 {
  margin: 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.section p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(226, 232, 240, 0.76);
}
.selector-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
#pathBtn,
#clearPathBtn {
  flex: 1;
}
.legend-grid {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 8px 12px;
  font-size: 12px;
  align-items: center;
}
.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.status {
  font-size: 12px;
  color: var(--muted);
}
.small {
  font-size: 12px;
}
.muted {
  color: rgba(226, 232, 240, 0.68);
}
#timelineWrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px clamp(16px, 3vw, 28px) 32px;
}
#timelineHeading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
#timelineHeading h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
#timelineHost {
  position: relative;
  flex: 1;
  min-height: 240px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid rgba(59, 130, 246, 0.22);
  border-radius: 18px;
  background: rgba(11, 18, 36, 0.68);
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}
#timelineHost::-webkit-scrollbar,
#connectionHost::-webkit-scrollbar {
  height: 10px;
}
#timelineHost::-webkit-scrollbar-thumb,
#connectionHost::-webkit-scrollbar-thumb {
  background: rgba(59, 130, 246, 0.26);
  border-radius: 999px;
}
.week-grid {
  display: flex;
  align-items: stretch;
  gap: 18px;
  padding: 22px;
  min-height: 100%;
}
.week-column {
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(8, 14, 31, 0.74);
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: 16px;
  padding: 16px 14px;
  box-shadow: 0 18px 32px rgba(2, 6, 23, 0.32);
}
.week-column header {
  position: sticky;
  top: 0;
  padding: 0 0 6px;
  background: transparent;
  border: none;
  box-shadow: none;
}
.week-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(226, 232, 240, 0.62);
}
.week-date-range {
  font-size: 11px;
  color: rgba(226, 232, 240, 0.46);
}
.game-card {
  display: grid;
  gap: 8px;
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(9, 16, 31, 0.86);
  border: 1px solid rgba(148, 163, 184, 0.22);
  position: relative;
  --segment-color: rgba(96, 165, 250, 0.46);
}
.game-card[data-segment-color]::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 2px solid var(--segment-color);
  opacity: 0.5;
  pointer-events: none;
}
.game-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(226, 232, 240, 0.62);
}
.team-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
}
.team-row span {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(148, 163, 184, 0.6);
}
.game-date {
  font-size: 12px;
  color: rgba(226, 232, 240, 0.6);
}
.empty-state {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  font-size: 14px;
  color: rgba(226, 232, 240, 0.6);
  text-align: center;
  padding: 42px;
}
#connectionSection {
  display: none;
  flex-direction: column;
  gap: 16px;
}
#connectionSection.active {
  display: flex;
}
#connectionHost {
  position: relative;
  overflow-x: auto;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 18px;
  background: rgba(9, 13, 26, 0.78);
  padding: 16px 0 12px;
}
#connectionSvg {
  display: block;
  min-height: 260px;
}
.connection-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: rgba(226, 232, 240, 0.72);
}
.connection-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(30, 64, 175, 0.32);
}
.connection-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
footer {
  font-size: 12px;
  color: rgba(148, 163, 184, 0.6);
  padding: 10px 16px 14px;
}
@media (max-width: 960px) {
  main {
    flex-direction: column;
  }
  #sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid rgba(37, 99, 235, 0.12);
    flex-direction: row;
    flex-wrap: wrap;
  }
  #content {
    min-height: 60vh;
  }
}