* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* 設定畫面 */
.setup-panel {
    background: white;
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    max-width: 500px;
    margin: 40px auto;
}

.setup-panel h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.5rem;
    color: #222;
}

.mode-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
}

.mode-btn {
    flex: 1;
    padding: 16px;
    border: 2px solid #e0e0e0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

.mode-btn:hover {
    border-color: #2196F3;
}

.mode-btn.active {
    border-color: #2196F3;
    background: #E3F2FD;
}

.mode-btn h4 {
    margin-bottom: 4px;
    color: #2196F3;
}

.mode-btn p {
    font-size: 0.85rem;
    color: #666;
}

.settings-form {
    display: none;
}

.settings-form.show {
    display: block;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: #555;
}

.form-group input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: #2196F3;
}

.unit-costs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.start-btn {
    width: 100%;
    padding: 14px;
    background: #2196F3;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 10px;
}

.start-btn:hover {
    background: #1976D2;
}

/* 遊戲畫面 */
.game-panel {
    display: none;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
}

.game-panel.show {
    display: block;
}

/* 頂部狀態列 */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: #fafafa;
    border-bottom: 1px solid #e0e0e0;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-item .label {
    color: #666;
    font-size: 0.9rem;
}

.status-item .value {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2196F3;
}

.reset-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
}

.reset-btn:hover {
    border-color: #999;
    color: #333;
}

/* 主要內容區 */
.game-content {
    padding: 24px;
}

/* 兵營區域 */
.barracks-area {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.barrack {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    background: #fafafa;
}

.barrack-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.barrack-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.queue-status {
    font-size: 0.85rem;
    color: #666;
}

.queue-slots {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.queue-slot {
    height: 48px;
    background: white;
    border: 2px dashed #ddd;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
}

.queue-slot.filled {
    border-style: solid;
    border-color: #2196F3;
    background: #E3F2FD;
}

.output-area {
    padding: 12px;
    background: white;
    border-radius: 6px;
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.output-area.idle {
    color: #999;
    font-size: 0.9rem;
}

.output-area.producing {
    color: #FF9800;
    font-weight: 500;
}

.output-area.completed {
    color: #4CAF50;
    font-weight: 600;
}

/* 控制區域 */
.controls {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.unit-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.unit-btn {
    padding: 12px 16px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
    text-align: left;
}

.unit-btn:hover:not(:disabled) {
    border-color: #2196F3;
    background: #fafafa;
}

.unit-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.unit-btn .name {
    font-weight: 500;
    display: block;
}

.unit-btn .cost {
    font-size: 0.85rem;
    color: #666;
}

.round-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.next-round-btn {
    flex: 1;
    padding: 16px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.15s;
}

.next-round-btn:hover {
    background: #43A047;
}

/* 日誌區域 */
.log-area {
    border-top: 1px solid #e0e0e0;
    padding-top: 20px;
}

.log-area h4 {
    font-size: 0.95rem;
    margin-bottom: 12px;
    color: #555;
}

.log-content {
    max-height: 180px;
    overflow-y: auto;
    font-family: "SF Mono", Monaco, monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    background: #fafafa;
    padding: 12px 16px;
    border-radius: 6px;
}

.log-entry {
    padding: 2px 0;
    border-bottom: 1px solid #eee;
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry.round {
    color: #2196F3;
    font-weight: 600;
    margin-top: 8px;
}

.log-entry.round:first-child {
    margin-top: 0;
}

.log-entry.success {
    color: #4CAF50;
}

.log-entry.error {
    color: #f44336;
}

.log-entry.warning {
    color: #FF9800;
}

@media (max-width: 600px) {
    .barracks-area {
        grid-template-columns: 1fr;
    }
    
    .controls {
        grid-template-columns: 1fr;
    }
    
    .mode-buttons {
        flex-direction: column;
    }
}