/* Container & Layout */
.planner-container {
  display: flex;
  flex-direction: column;
}

/* Header Section */
.planner-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  gap: 1rem;
}

.planner-title {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--ctp-mauve);
}

.planner-subtitle {
  font-size: 1rem;
  color: var(--ctp-subtext0);
  text-align: center;
  line-height: 1.5;
}

/* New Plan Button */
.new-plan-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: fit-content;
  
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
  text-decoration: none;

  background-color: var(--ctp-mantle);
  color: var(--ctp-text);
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  border: 1px solid var(--ctp-surface1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 
              0 2px 4px -1px rgba(0, 0, 0, 0.06);
  
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.new-plan-btn:hover {
  background-color: var(--ctp-mantle);
  border-color: var(--ctp-mauve);
  color: var(--ctp-mauve);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

.new-plan-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Plans Grid */
#plans-list {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

/* Rarity Colors */
.rarity-5 { color: var(--ctp-yellow); }
.rarity-4 { color: var(--ctp-mauve); }
.rarity-3 { color: var(--ctp-blue); }
.rarity-2 { color: var(--ctp-green); }
.rarity-1 { color: var(--ctp-overlay2); }

/* Responsive Breakpoints */
@media (min-width: 640px) {
  .planner-title {
    font-size: 1.75rem;
  }

  .planner-subtitle {
    font-size: 1.0625rem;
  }

  #plans-list {
    gap: 1.75rem;
  }
}

@media (min-width: 768px) {
  #plans-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  #plans-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

/* Mobile-specific adjustments */
@media (max-width: 639px) {
  .planner-header {
    align-items: stretch;
    margin-bottom: 1.5rem;
  }

  .planner-title {
    font-size: 1.75rem;
    text-align: center;
  }

  .planner-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
  }

  .new-plan-btn {
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
  }

  #plans-list {
    gap: 1.25rem;
  }
}