/* ═══════════════════════════════════════════════════════════
   SUB3 — Custom Styles
   ═══════════════════════════════════════════════════════════ */

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }

.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

/* ── Stats Cards ───────────────────────────────────────── */
.stat-card {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.625rem;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.5);
  min-width: 120px;
}

.stat-card i {
  font-size: 1.125rem;
  flex-shrink: 0;
}

.stat-label {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  line-height: 1;
}

.stat-value {
  font-size: 0.875rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #f1f5f9;
  line-height: 1.3;
}

/* ── Canvas ────────────────────────────────────────────── */
#canvas-wrapper {
  position: relative;
}

#workout-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: default;
}

.canvas-tooltip {
  position: absolute;
  padding: 0.375rem 0.625rem;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid #334155;
  border-radius: 0.5rem;
  font-size: 0.6875rem;
  color: #e2e8f0;
  pointer-events: none;
  white-space: nowrap;
  z-index: 20;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: opacity 0.15s;
}

/* ── Add Buttons ───────────────────────────────────────── */
.add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.375rem 0.25rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  color: #e2e8f0;
}

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

.add-btn-warmup {
  background: rgba(107, 114, 128, 0.15);
  border-color: rgba(107, 114, 128, 0.3);
}
.add-btn-warmup:hover {
  background: rgba(107, 114, 128, 0.25);
  border-color: rgba(107, 114, 128, 0.5);
}

.add-btn-active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
}
.add-btn-active:hover {
  background: rgba(59, 130, 246, 0.25);
  border-color: rgba(59, 130, 246, 0.5);
}

.add-btn-recovery {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
}
.add-btn-recovery:hover {
  background: rgba(34, 197, 94, 0.25);
  border-color: rgba(34, 197, 94, 0.5);
}

.add-btn-cooldown {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.3);
}
.add-btn-cooldown:hover {
  background: rgba(245, 158, 11, 0.25);
  border-color: rgba(245, 158, 11, 0.5);
}

/* ── Block Chips ───────────────────────────────────────── */
.block-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.625rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s;
  user-select: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.block-chip:hover {
  filter: brightness(1.2);
}

.block-chip.selected {
  border-color: #fff;
  box-shadow: 0 0 0 2px rgba(255,255,255,0.15);
}

.block-chip-warmup   { background: rgba(107,114,128,0.25); color: #d1d5db; }
.block-chip-active   { background: rgba(59,130,246,0.25);  color: #93c5fd; }
.block-chip-recovery { background: rgba(34,197,94,0.25);   color: #86efac; }
.block-chip-cooldown { background: rgba(245,158,11,0.25);  color: #fcd34d; }

/* ── Inspector ─────────────────────────────────────────── */
.slider-label {
  display: block;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #94a3b8;
  margin-bottom: 0.25rem;
}

.num-input {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 0.375rem 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: #f1f5f9;
  text-align: center;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}

.num-input::-webkit-outer-spin-button,
.num-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.num-input:focus {
  border-color: rgba(6, 182, 212, 0.5);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

/* ── Range Sliders ─────────────────────────────────────── */
.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #1e293b;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #06b6d4;
  border: 2px solid #0e7490;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(6,182,212,0.3);
  transition: transform 0.1s, box-shadow 0.1s;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 10px rgba(6,182,212,0.5);
}

.slider::-webkit-slider-thumb:active {
  transform: scale(1.05);
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #06b6d4;
  border: 2px solid #0e7490;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(6,182,212,0.3);
}

.slider-incline::-webkit-slider-thumb {
  background: #f97316;
  border-color: #c2410c;
  box-shadow: 0 2px 6px rgba(249,115,22,0.3);
}

.slider-incline::-webkit-slider-thumb:hover {
  box-shadow: 0 2px 10px rgba(249,115,22,0.5);
}

.slider-incline::-moz-range-thumb {
  background: #f97316;
  border-color: #c2410c;
  box-shadow: 0 2px 6px rgba(249,115,22,0.3);
}

/* ── Inspector Badge ───────────────────────────────────── */
.badge-warmup   { background: rgba(107,114,128,0.25); color: #d1d5db; }
.badge-active   { background: rgba(59,130,246,0.25);  color: #93c5fd; }
.badge-recovery { background: rgba(34,197,94,0.25);   color: #86efac; }
.badge-cooldown { background: rgba(245,158,11,0.25);  color: #fcd34d; }

/* ── Modal Select ──────────────────────────────────────── */
.modal-select {
  background-image: none;
  cursor: pointer;
}

.modal-select option {
  background: #1e293b;
  color: #e2e8f0;
  padding: 0.5rem;
}

/* ── Tab Navigation ────────────────────────────────────── */
.tab-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #64748b;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: #94a3b8;
  background: rgba(51, 65, 85, 0.3);
}

.tab-btn.active {
  color: #e2e8f0;
  background: rgba(51, 65, 85, 0.5);
  border-color: rgba(51, 65, 85, 0.6);
}

/* ── Toast ─────────────────────────────────────────────── */
.toast-hidden {
  opacity: 0;
  transform: translateY(12px);
}

.toast-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Collection Cards ──────────────────────────────────── */
.workout-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: 0.875rem;
  padding: 0;
  transition: all 0.2s;
  cursor: pointer;
  overflow: hidden;
}

.workout-card:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: rgba(71, 85, 105, 0.7);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.workout-card-sparkline {
  display: block;
  width: 100%;
  height: 64px;
  background: rgba(15, 23, 42, 0.4);
}

.workout-card-body {
  padding: 0.625rem 0.75rem;
}

.workout-card-metrics {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.workout-card-metric {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.625rem;
  font-weight: 600;
  color: #94a3b8;
  font-variant-numeric: tabular-nums;
}

.workout-card-metric i {
  font-size: 0.6875rem;
}

.workout-card-actions {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.workout-card-actions button {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  border: 1px solid rgba(51,65,85,0.5);
  background: rgba(30,41,59,0.6);
  color: #64748b;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}

.workout-card-actions button:hover {
  background: rgba(51,65,85,0.6);
  color: #e2e8f0;
}

/* ── Read-only Canvas ──────────────────────────────────── */
#readonly-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── Animations ────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.2s ease-out;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 1s linear infinite;
}