:root {
  --bg-color: #f4f4f5;
  --text-color: #333;
  --primary-color: #2b5c3f; /* 中興綠 */
  --secondary-color: #e5a910;
  --panel-bg: #fff;
}

body {
  margin: 0;
  font-family: 'Helvetica Neue', Arial, 'Microsoft JhengHei', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
}

#app {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  height: 100vh;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.screen {
  display: none;
  flex: 1;
  flex-direction: column;
}

.screen.active {
  display: flex;
}

/* 首頁 */
#screen-start {
  justify-content: center;
  align-items: center;
  text-align: center;
}
#screen-start h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
}
#screen-start p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

/* 遊戲畫面 */
#screen-game header {
  display: flex;
  justify-content: space-between;
  background: var(--primary-color);
  color: #fff;
  padding: 15px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-weight: bold;
  font-size: 1.2rem;
}

.layout-main {
  display: flex;
  gap: 20px;
  flex: 1;
}

#panel-stats {
  width: 250px;
  background: var(--panel-bg);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

#panel-stats ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#panel-stats li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
  font-size: 1.1rem;
}

#panel-event {
  flex: 1;
  background: var(--panel-bg);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
}

#event-title {
  color: var(--primary-color);
  margin-top: 0;
}

#event-desc {
  font-size: 1.1rem;
  line-height: 1.6;
  flex: 1;
}

#event-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 20px;
  font-size: 1.1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background-color: #1e402c;
}

#event-options button {
  background-color: #f0f0f0;
  color: #333;
  text-align: left;
  border: 1px solid #ddd;
}

#event-options button:hover {
  background-color: #e0e0e0;
}

/* 結局畫面 */
#screen-ending {
  justify-content: center;
  align-items: center;
  text-align: center;
}
#screen-ending h1 {
  font-size: 3rem;
  color: var(--primary-color);
}
#screen-ending p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.floating-text { position: absolute; margin-left: 10px; animation: floatUp 1.5s ease-out forwards; font-weight: bold; }
.positive { color: green; }
.negative { color: red; }
@keyframes floatUp { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(-20px); } }
#panel-stats li { position: relative; }

#screen-ending.active {
  animation: endingPop 1s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}
@keyframes endingPop {
  0% { opacity: 0; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}