/**
 * HabitFlow - Reusable Component Library
 * App-like cards, buttons, badges, chips, progress bars, and forms.
 */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-full);
  min-height: var(--touch-target-min);
  white-space: nowrap;
  transition: all var(--transition-base);
  user-select: none;
  border: 1px solid transparent;
  text-decoration: none;
}

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

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 6px 20px 0 var(--primary-glow);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--surface-muted);
  color: var(--text);
}

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

.btn-outline:hover {
  background-color: var(--surface-secondary);
  border-color: var(--text-secondary);
}

.btn-white {
  background-color: #ffffff;
  color: #0f172a;
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background-color: #f8fafc;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  min-height: 36px;
}

.btn-lg {
  padding: 1.05rem 2.1rem;
  font-size: 1.05rem;
  min-height: 52px;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface-secondary);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-icon:hover {
  background-color: var(--surface-muted);
}

/* ==========================================================================
   Badges & Tags
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1;
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

.badge-neutral {
  background-color: var(--surface-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.badge-success {
  background-color: var(--success-light);
  color: var(--success);
}

.badge-streak {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
  color: #c2410c;
  border: 1px solid #fed7aa;
}

[data-theme="dark"] .badge-streak {
  background: rgba(234, 88, 12, 0.2);
  color: #fb923c;
  border-color: rgba(234, 88, 12, 0.3);
}

/* ==========================================================================
   App-like Cards
   ========================================================================== */
.card {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-focus);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:active {
  transform: scale(0.99);
}

/* ==========================================================================
   Progress Bar
   ========================================================================== */
.progress-bar-container {
  width: 100%;
  background-color: var(--surface-secondary);
  border-radius: var(--radius-full);
  height: 10px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius-full);
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
  width: 0%;
}

/* ==========================================================================
   Habit Item Row (Card/App list style)
   ========================================================================== */
.habit-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background-color: var(--surface-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  transition: all var(--transition-fast);
}

.habit-item-row:hover {
  background-color: var(--surface);
  border-color: var(--primary);
}

.habit-check-circle {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--transition-fast);
}

.habit-check-circle.completed {
  background-color: var(--primary);
  color: #ffffff;
}

.habit-check-circle.pending {
  border: 2px solid var(--text-muted);
  color: transparent;
}

/* ==========================================================================
   Form Inputs & Controls
   ========================================================================== */
.input-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background-color: var(--surface);
  color: var(--text);
  font-size: 1rem;
  min-height: var(--touch-target-min);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.input-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-control::placeholder {
  color: var(--text-muted);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-2);
}

.form-group {
  margin-bottom: var(--space-4);
}