:root {
    --accent-gold: #ffd700;
    --ui-scale: 1;
    --bg-opacity: 0.1; 
}

* { 
    margin: 0; padding: 0; box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent; 
}

body {
    width: 100vw; height: 100vh;
    background: #000; 
    font-family: "Microsoft JhengHei", "PingFang TC", sans-serif;
    color: #fff; overflow: hidden;
    
    touch-action: none; 
    overscroll-behavior: none;
    -webkit-user-select: none; user-select: none;
    -webkit-touch-callout: none;
}

/* 介面按鈕智能隱藏 */
.ui-controls {
    transition: opacity 0.3s ease, visibility 0.3s;
    z-index: 3000; position: relative;
}
body.hide-ui .ui-controls { opacity: 0; visibility: hidden; }

.action-btn {
    position: absolute; 
    top: max(20px, env(safe-area-inset-top)); 
    left: 20px;
    font-size: 16px; font-weight: bold; cursor: pointer;
    background: rgba(30, 30, 30, 0.9); border: 1px solid var(--accent-gold);
    color: var(--accent-gold); padding: 8px 15px; border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.8); pointer-events: auto;
}

.settings-panel {
    position: absolute; 
    top: max(70px, calc(env(safe-area-inset-top) + 50px)); 
    left: 20px;
    background: rgba(10, 10, 10, 0.98); backdrop-filter: blur(10px);
    padding: 20px; border-radius: 12px; z-index: 3000;
    border: 2px solid var(--accent-gold); box-shadow: 0 10px 30px rgba(0,0,0,1);
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: all 0.3s ease-in-out;
}
.settings-panel.show { opacity: 1; visibility: visible; transform: translateY(0); }

.panel-header {
    display: flex; justify-content: space-between; align-items: center;
    color: var(--accent-gold); font-size: 16px; font-weight: bold;
    margin-bottom: 15px; padding-bottom: 12px; border-bottom: 1px solid rgba(255, 215, 0, 0.3);
}
.close-panel { cursor: pointer; color: #ff5555; font-size: 18px; transition: 0.2s; padding: 0 10px;}

.setting-item { margin-bottom: 16px; font-size: 15px; font-weight: bold; display: flex; flex-direction: column; gap: 8px; }
.setting-item label:not(.check-box) { color: var(--accent-gold); letter-spacing: 1px; }
.check-box { display: flex; align-items: center; cursor: pointer; gap: 8px; color: #ffffff; }
.setting-tip { font-size: 13px; font-weight: bold; margin-top: 15px; border-top: 1px solid #444; padding-top: 12px; }

.tz-select {
    background: #1a1a1a; color: #ffffff; border: 1px solid var(--accent-gold);
    padding: 8px; border-radius: 6px; font-size: 14px; font-weight: bold; outline: none;
}

.app-scale-container {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(var(--ui-scale));
    transition: transform 0.1s ease-out; pointer-events: none; 
}

.compass { position: relative; width: 0; height: 0; display: flex; justify-content: center; align-items: center; }

.ring {
    position: absolute; border-radius: 50%;
    border: 1px solid rgba(255, 215, 0, 0.2);
    background: rgba(0, 0, 0, var(--bg-opacity)); 
    transition: transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ring-bagua  { width: 180px; height: 180px; z-index: 60; } 
.ring-stem   { width: 280px; height: 280px; z-index: 50; }
.ring-branch { width: 380px; height: 380px; z-index: 40; }
.ring-hour   { width: 520px; height: 520px; z-index: 30; }
.ring-minute { width: 660px; height: 660px; z-index: 20; }
.ring-second { width: 800px; height: 800px; z-index: 10; }

.label {
    position: absolute; width: 100%; height: 30px;
    top: calc(50% - 15px); left: 0; transform-origin: center center;
    display: flex; justify-content: flex-end; align-items: center;
    padding-right: 12px; font-size: 14px; font-weight: 600;
    text-shadow: 1px 1px 1px #000, -1px -1px 1px #000, 0 0 5px rgba(0,0,0,0.8);
}

.active { color: var(--accent-gold); font-size: 1.3em; text-shadow: 0 0 12px var(--accent-gold); }

/* 八角形金邊底座 */
.center-hex-wrapper {
    position: absolute; width: 46px; height: 46px; background: var(--accent-gold); 
    clip-path: polygon(29.3% 0%, 70.7% 0%, 100% 29.3%, 100% 70.7%, 70.7% 100%, 29.3% 100%, 0% 70.7%, 0% 29.3%);
    display: flex; justify-content: center; align-items: center; z-index: 100;
}

.center-hex {
    width: 42px; height: 42px; background: rgba(10, 10, 10, 0.95); 
    clip-path: polygon(29.3% 0%, 70.7% 0%, 100% 29.3%, 100% 70.7%, 70.7% 100%, 29.3% 100%, 0% 70.7%, 0% 29.3%);
    display: flex; justify-content: center; align-items: center;
}

/* 太極符號轉 90 度 */
.taiji {
    color: var(--accent-gold); font-size: 30px; display: inline-block;
    transform: rotate(90deg); text-shadow: 0 0 8px rgba(255, 215, 0, 0.8);
    line-height: 1; padding-bottom: 2px;
}

/* =========================================
   全平台自適應日期區塊 (手機版優先)
   ========================================= */
.date-display {
    position: absolute; 
    bottom: max(30px, env(safe-area-inset-bottom)); 
    top: auto; 
    left: 50%; 
    transform: translateX(-50%); 
    
    color: var(--accent-gold); 
    font-size: 15px; 
    font-weight: bold;
    background: rgba(0, 0, 0, 0.85); 
    padding: 10px 20px; 
    border-radius: 20px;
    border: 1px solid var(--accent-gold); 
    box-shadow: 0 0 15px rgba(0,0,0,0.8);
    
    width: max-content;
    max-width: 90vw; 
    text-align: center;
    white-space: normal; 
    line-height: 1.6; 
    
    cursor: pointer; z-index: 9999; 
    transition: background 0.2s; 
    pointer-events: auto; 
}
.date-display:hover { background: rgba(50, 50, 50, 0.95); }

/* 電腦 / 平板大螢幕專屬設定 */
@media (min-width: 768px) {
    .date-display {
        bottom: auto;
        top: calc(50% + 420px * var(--ui-scale)); 
        transform: translateX(-50%) scale(var(--ui-scale));
        
        font-size: 20px;
        padding: 12px 30px;
        border-radius: 30px;
        white-space: nowrap; 
    }
}