* { box-sizing: border-box; font-family: 'Inter', 'Roboto', 'Microsoft JhengHei', sans-serif; }
body { margin: 0; padding: 0; background-color: #E0D9CB; color: #333; }

#app {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    background-color: #F7F4EB;
    position: relative;
    padding-bottom: 70px; /* space for bottom nav */
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

.top-bar {
    background-color: #F7F4EB;
    padding: 15px;
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 2px solid #E0D9CB;
}
.top-bar-inputs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}
.input-group {
    display: flex;
    align-items: center;
    font-size: 14px;
    font-weight: 600;
}
.input-group input {
    width: 80px;
    margin-left: 10px;
    padding: 10px;
    border: 1px solid #C4B7A1;
    border-radius: 8px;
    font-size: 16px; /* 16px 防止 iOS 點擊時畫面縮放 */
}
.top-bar-stats {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: bold;
    margin-top: 5px;
}
.red-text { color: #FF3333; }

.tab-content {
    display: none;
    padding: 15px;
    animation: fadeIn 0.3s;
}
.tab-content.active { display: block; }

@keyframes fadeIn { from {opacity: 0;} to {opacity: 1;} }

.card {
    background-color: #E0D9CB;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.card-title {
    font-size: 18px;
    font-weight: bold;
    color: #5E5545;
}
.btn-reset, .btn-awaken {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
}
.btn-reset { background-color: #C4B7A1; color: #5E5545; margin-right: 5px; }
.btn-awaken { background-color: #A89C86; color: white; }
.btn-awaken:disabled { opacity: 0.5; cursor: not-allowed; }

.stat-row {
    margin-bottom: 10px;
    background-color: #F7F4EB;
    border-radius: 6px;
    padding: 10px;
}
.stat-box {
    text-align: center;
    font-weight: bold;
    font-size: 14px;
    padding: 8px;
    background-color: #F9F9F9;
    color: #333;
    border-radius: 4px;
    margin-bottom: 8px;
}
.stat-box.tier-high { color: #1CB0F6; background-color: #FFFFFF; }
.stat-box.tier-max { color: #1CB0F6; background-color: #000000; }

.locks {
    display: flex;
    justify-content: space-around;
    color: #5E5545;
    margin-top: 5px;
}
.locks label { 
    display: flex; 
    align-items: center; 
    cursor: pointer; 
    padding: 8px 16px; /* 擴大觸控範圍 */
    background-color: #EAE3D6; /* 增加按鈕底色 */
    border-radius: 20px; /* 圓角藥丸形狀 */
    font-size: 14px;
    font-weight: bold;
    -webkit-tap-highlight-color: transparent; /* 隱藏手機點擊閃爍 */
}
.locks input { 
    width: 22px; 
    height: 22px; 
    margin-right: 8px; 
    accent-color: #5E5545; /* 讓核取方塊顏色融入主題 */
}

.action-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}
.action-buttons button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    background-color: #C4B7A1;
    color: #5E5545;
}
.action-buttons button:active { background-color: #D6CBB7; }

/* Bottom Nav */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    background-color: #C4B7A1;
    display: flex;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 100;
}
.nav-btn {
    flex: 1;
    padding: 15px 0;
    text-align: center;
    border: none;
    background: none;
    color: #5E5545;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
}
.nav-btn.active {
    background-color: #E0D9CB;
    color: #333;
    border-top: 3px solid #5E5545;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    display: none;
    justify-content: center;
    align-items: flex-end;
    z-index: 1000;
}
.modal-overlay.active { display: flex; }
.modal-content {
    width: 100%;
    max-width: 480px;
    background: #F7F4EB;
    border-radius: 20px 20px 0 0;
    padding: 20px;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.2);
    animation: slideUp 0.3s;
}
@keyframes slideUp { from {transform: translateY(100%);} to {transform: translateY(0);} }

.modal-title { text-align: center; font-size: 18px; font-weight: bold; margin-bottom: 20px; color: #5E5545;}
.modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-bottom: 20px; }
.modal-col h4 { margin: 0 0 10px 0; font-size: 14px; color: #5E5545; text-align: center; }
.modal-col .stat-box { margin-bottom: 8px; font-size: 13px; }
.changed-highlight { background-color: #FFFFFF !important; border: 2px solid #1CB0F6; }

.modal-actions { display: flex; gap: 15px; }
.modal-actions button {
    flex: 1; padding: 12px; border: none; border-radius: 8px;
    font-size: 16px; font-weight: bold; cursor: pointer; color: white;
}
.btn-keep { background-color: #E88D38; }
.btn-change { background-color: #1CB0F6; }

/* Summaries */
.summary-item {
    display: flex;
    justify-content: space-between;
    background: #E0D9CB;
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 6px;
    font-weight: bold;
    color: #5E5545;
}

/* Calculator specific */
.calc-row {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    background-color: #F7F4EB;
    padding: 8px;
    border-radius: 6px;
}
.calc-row select {
    padding: 6px;
    border: 1px solid #C4B7A1;
    border-radius: 4px;
    font-size: 14px;
    background-color: white;
}
.calc-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-left: auto;
    accent-color: #5E5545;
}