:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f4f6fb;
  --text: #0f1220;
  --muted: #55607a;
  --accent: #0b4de8;
  --accent-2: #f97316;
  --border: #d7dceb;
  --error: #dc2626;
  --success: #16a34a;
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

#app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  display: grid;
  gap: 16px;
}

.topbar {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
}

.menu-button {
  margin-right: auto;
}

.topbar-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: none;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

button.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.main {
  display: grid;
  gap: 16px;
}

.draw-section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: none;
  gap: 16px;
  min-height: 800px;
  align-content: start;
}

.draw-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 6px;
}

#draw-result {
  display: grid;
  justify-items: center;
  margin-top: 80px;
}

.draw-strip {
  width: calc(5 * 240px + 4 * 16px);
  overflow-x: hidden;
  overflow-y: visible;
  padding: 60px 0;
  margin-bottom: 40px;
  margin: 0 auto;
}

.draw-track {
  display: flex;
  gap: 16px;
  align-items: center;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.draw-card {
  width: 240px;
  flex: 0 0 auto;
  transform: scale(1);
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center center;
  min-height: 400px;
  cursor: default;
}

.draw-card .cover {
  height: 240px;
  aspect-ratio: auto;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.draw-card:hover {
  transform: scale(1);
  border-color: var(--border);
}

.draw-card.is-center {
  transform: scale(1);
}

.draw-final .draw-card.is-center {
  transform: scale(1.3);
}

.draw-final .draw-card:not(.is-center) {
  opacity: 0;
  transform: scale(0.7);
}

#select-section.is-hidden {
  display: none;
}

.draw-section.is-visible {
  display: grid;
}

.sidebar {
  display: grid;
  gap: 16px;
  align-content: start;
}

.drawer-menu {
  display: grid;
  gap: 8px;
}

.menu-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: left;
  font-weight: 700;
  cursor: pointer;
}

.menu-item.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(88vw, 360px);
  height: 100vh;
  padding: 20px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  box-shadow: -10px 0 24px rgba(15, 18, 32, 0.08);
  transform: translateX(100%);
  transition: transform 0.2s ease;
  z-index: 20;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 32, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 10;
}

body.drawer-open .drawer {
  transform: translateX(0);
}

body.drawer-open .drawer-backdrop {
  opacity: 1;
  pointer-events: auto;
}

.flow-card,
.player-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: grid;
  gap: 10px;
}

.flow-title {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 2px;
}

.flow-step {
  font-size: 18px;
  font-weight: 700;
}

.flow-desc {
  color: var(--muted);
  font-size: 13px;
}

.flow-progress {
  font-size: 12px;
  color: var(--success);
}

.player-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.4);
}

.player-title {
  font-weight: 700;
}

.player-line {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 11px;
}

.library {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  gap: 16px;
}

.summary {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: none;
  gap: 16px;
}

.summary.is-visible {
  display: grid;
}

.summary-head h2 {
  margin: 0;
}
.library-head {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}

.library h2 {
  margin: 0;
}

.muted {
  color: var(--muted);
  font-size: 12px;
  margin: 4px 0 0;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
}

.tab.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

.tab:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.card.selected {
  border-color: var(--success);
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.4);
}

.card.banned {
  border-color: var(--error);
  box-shadow: 0 0 0 1px rgba(248, 113, 113, 0.4);
}

.cover {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.card-title {
  font-weight: 600;
  font-size: 13px;
}

.card-meta {
  font-size: 11px;
  color: var(--muted);
}

.empty {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 30px 0;
}

.empty.is-hidden {
  display: none;
}

.card.is-hidden {
  display: none;
}

.diff {
  font-size: 11px;
  color: var(--muted);
}

.diff .level {
  position: absolute;
  right: 10px;
  bottom: 46px;
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  padding: 2px 4px;
}

.diff .expert {
  color: var(--error);
  font-weight: 700;
}

.diff .master {
  color: #7c3aed;
  font-weight: 700;
}

.diff .remaster {
  color: #c4b5fd;
  font-weight: 700;
}

.diff .dx {
  color: #f59e0b;
  font-weight: 700;
}

.diff .st {
  color: #2563eb;
  font-weight: 700;
}

.diff .level-expert {
  color: var(--error);
}

.diff .level-master {
  color: #7c3aed;
}

.diff .level-remaster {
  color: #c4b5fd;
}

@media (max-width: 720px) {
  .topbar {
    justify-content: flex-start;
  }

  .topbar-actions {
    width: 100%;
  }

  .layout {
    grid-template-columns: 1fr;
  }
}