/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 20px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}

/* Horizontal Week Slider */
.week-strip {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 20px;
}

.day-pill {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 4px;
  border-radius: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.day-pill .day-name { font-size: 0.75rem; color: var(--color-muted); font-weight: 600; }
.day-pill .day-num { font-size: 1.05rem; font-weight: 700; color: var(--color-text); margin-top: 2px; }

.day-pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.day-pill.active .day-name, .day-pill.active .day-num { color: #FFFFFF; }

/* Habit Item Card */
.habit-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface);
  padding: 16px;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  margin-bottom: 12px;
  transition: var(--transition-smooth);
}

.habit-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.habit-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-control);
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.habit-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
}

.habit-subtitle {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Checkbox Toggle */
.check-btn {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: transparent;
  transition: var(--transition-smooth);
}

.habit-card.completed {
  opacity: 0.85;
  background-color: var(--color-surface-subtle);
}

.habit-card.completed .check-btn {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

/* Progress Bar */
.progress-card {
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-surface));
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  margin-bottom: 10px;
}

.progress-track {
  height: 12px;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  width: 0%;
  transition: width 0.4s ease;
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(40, 30, 38, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  max-width: 480px;
  background: var(--color-surface);
  border-top-left-radius: 28px;
  border-top-right-radius: 28px;
  padding: 24px;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-input, .form-select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-control);
  border: 1px solid var(--color-border);
  background: var(--color-background);
  font-size: 0.95rem;
}

.btn-primary {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--color-text);
  color: var(--color-surface);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-float);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
}

@keyframes toastIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }