@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700&display=swap');

/* Design Tokens */
:root {
  --color-bg: #f5f5f3;
  --color-white: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #999999;
  --color-accent: #2563eb;
  --color-border: #e4e4e0;
  --font-main: 'DM Sans', sans-serif;
  --radius-sm: 12px;
  --radius-md: 14px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-dropdown: 0 8px 24px rgba(0, 0, 0, 0.10);
  --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 16px 80px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar {
  display: none;
}

ul { list-style: none; }

button {
  cursor: pointer;
  font-family: var(--font-main);
  border: none;
  background: none;
}

/* Page Container */
.container {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* View Toggle */
.view-toggle {
  width: 100%;
  max-width: 520px;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 5px;
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-card);
}

.toggle-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.toggle-btn:hover:not(.active) {
  background-color: #f0f0ee;
  color: var(--color-text);
}

.toggle-btn.active {
  background-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.28);
}

/* Date Dropdown */
.dropdown-wrapper {
  width: 100%;
  max-width: 520px;
  margin-bottom: 20px;
  position: relative;
}

.dropdown-btn {
  width: 100%;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 15px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color var(--transition);
  box-shadow: var(--shadow-card);
}

.dropdown-btn:hover { border-color: #bbb; }

.dropdown-btn.open { border-color: var(--color-accent); }

.chevron-icon {
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.dropdown-btn.open .chevron-icon { transform: rotate(180deg); }

.dropdown-menu {
  width: calc(100% - 16px);
  margin: 8px auto 0;
  background: transparent;
  position: relative;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dropdown-menu.hidden { display: none; }

.dropdown-item {
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.dropdown-item:hover {
  background-color: #f9f9f8;
  border-color: #ccc;
}

.dropdown-item.selected {
  color: var(--color-accent);
  font-weight: 600;
  background-color: var(--color-white);
}

/* Strategy Cards */
.cards-container {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 320px;
}

.strategy-card {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-card);
  animation: cardSlideIn 0.15s ease both;
}

.card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.card-count {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.count-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-text-muted);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Empty State */
.empty-state {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  animation: cardSlideIn 0.25s ease;
  text-align: center;
}

.empty-state p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.empty-state strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 2px;
}

/* Animations */
@keyframes cardSlideIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 480px) {
  .toggle-btn {
    font-size: 12px;
    padding: 9px 4px;
  }
}