/* === Shared Components === */

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0; right: 0;
  height: calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 100;
}

.bottom-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 0.65rem;
  transition: color 0.2s;
}

.bottom-nav a.active {
  color: var(--primary);
}

.bottom-nav a .nav-icon {
  font-size: 1.3rem;
  line-height: 1;
}

/* Top bar */
.top-bar {
  position: sticky;
  top: 0;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  padding-top: calc(12px + var(--safe-top));
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
}

.top-bar .back-btn {
  background: none;
  border: none;
  font-size: 1.3rem;
  color: var(--primary);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.top-bar .title {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

/* Search input */
.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 12px 10px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: var(--bg);
  outline: none;
  transition: border-color 0.2s;
}

.search-box input:focus {
  border-color: var(--primary-light);
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  -webkit-user-select: none;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
}

/* Chips / Tags */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  background: var(--bg);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Select dropdown */
.select-wrap {
  position: relative;
  display: inline-block;
}

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  padding: 6px 28px 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}

.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Loading overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  flex-direction: column;
  gap: 12px;
}

.loading-overlay.visible {
  display: flex;
}

/* Empty state */
.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 12px;
}