/* =============================================================
   NAVIGATION
   Bottom navigation bar, More drawer (secondary tabs), and the
   workout focus bar that replaces the nav during active sessions.
   Depends on: tokens.css
   ============================================================= */

/* ── Bottom navigation bar ──────────────────────────────────── */

/* One fixed bar, equal-width items — no horizontal scroll. */
#bottomNav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(64px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: rgba(10, 15, 12, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-top: 1px solid rgba(132, 157, 144, 0.22);
  display: flex;
  align-items: stretch;
  z-index: 1000;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Keep nav visible during workout — focus bar sits above it */

/* ── Nav items ──────────────────────────────────────────────── */

.bn-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  background: none;
  border: none;
  color: var(--secondary-text);
  font-size: 11px;
  font-family: 'Poppins', sans-serif;
  cursor: pointer;
  padding: 0 6px;
  margin: 0;
  box-shadow: none;
  transition: color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.bn-item:hover {
  background: none;
  transform: none;
  color: var(--text-color);
}

.bn-item.active {
  color: var(--primary);
}

.bn-item {
  position: relative; /* anchor the ::before indicator */
}

/* Top indicator pill — scales in when active */
.bn-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 28px;
  height: 3px;
  background: var(--primary);
  border-radius: 0 0 4px 4px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.bn-item.active::before {
  transform: translateX(-50%) scaleX(1);
}

.bn-item .bn-icon {
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, filter 0.2s ease;
}

/* SVG icon sizing */
.bn-icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.bn-item.active .bn-icon {
  transform: translateY(-2px);
  filter: drop-shadow(0 0 7px rgba(45, 125, 91, 0.7));
}

.bn-item .bn-label {
  font-size: 10px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* More button never highlights with the primary colour */
.bn-item.bn-more.active {
  color: var(--secondary-text);
}

/* ── More drawer ────────────────────────────────────────────── */

/*
 * Full-screen overlay with a translucent scrim and a slide-up panel.
 * Toggle `.open` on #moreDrawer to show/hide.
 */
.more-drawer {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.more-drawer[hidden] {
  display: none;
}

.more-drawer-scrim {
  flex: 1;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  cursor: pointer;
}

.more-drawer-panel {
  background: var(--card-bg, #0f1510);
  border-top: 1px solid var(--border-color);
  border-radius: 20px 20px 0 0;
  padding: 8px 16px calc(80px + env(safe-area-inset-bottom, 0px));
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.more-drawer.open .more-drawer-panel {
  transform: translateY(0);
}

/* Drag handle pill */
.more-drawer-handle {
  width: 36px;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  margin: 0 auto 16px;
}

/* 4-column icon grid */
.more-drawer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.more-drawer-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 8px;
  border: none;
  background: var(--surface-bg, #141e17);
  border-radius: 12px;
  color: var(--text-color);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  font-family: 'Poppins', sans-serif;
}

.more-drawer-item:active {
  transform: scale(0.95);
  background: var(--border-color);
}

.more-drawer-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 20px;
  line-height: 1;
  overflow: hidden;
  font-family: 'Segoe UI Emoji', 'Noto Color Emoji', 'Apple Color Emoji', 'Poppins', sans-serif;
}

.more-drawer-logout {
  color: #c05060;
}

/* ── Workout focus bar ──────────────────────────────────────── */

/*
 * Compact bar that sits above the bottom nav during an active workout.
 * Nav stays fully accessible so the user can switch tabs mid-session.
 */
#workoutFocusBar {
  position: fixed;
  bottom: calc(65px + env(safe-area-inset-bottom, 0px));
  left: 0;
  right: 0;
  height: 44px;
  background: rgba(10, 15, 12, 0.97);
  border-top: 2px solid var(--primary, #5fa87e);
  border-bottom: 1px solid rgba(95, 168, 126, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 999;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.workout-active #workoutFocusBar {
  transform: translateY(0);
}

.wfb-timer {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary, #5fa87e);
}

.wfb-label {
  font-size: 0.8rem;
  color: var(--secondary-text);
}

.wfb-end-btn {
  padding: 6px 14px;
  border-radius: 8px;
  background: #c05060;
  color: #fff;
  border: none;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
}