:root {
    --bg-main: linear-gradient(135deg, #F6F7F9 0%, #EDF1F4 100%);
    --text-primary: #1A1A1E;
    --text-secondary: #6E6E73;
    --accent-blue: #007AFF;
    
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-blur: 30px;
    
    --radius-lg: 28px;
    --radius-md: 14px;
    --radius-pill: 100px;
    --shadow-soft: 0 8px 30px rgba(0,0,0,0.04);
    --shadow-glass: 
        0 20px 40px -10px rgba(0,0,0,0.08), 
        inset 0 0 20px rgba(255, 255, 255, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* --- Top Navigation --- */
.top-bar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 16px 40px; 
    background: rgba(255,255,255,0.85); 
    backdrop-filter: blur(20px); 
    border-bottom: 1px solid rgba(0,0,0,0.05);
    position: sticky; top: 0; z-index: 100;
}

/* --- 高級感 Logo 樣式優化 --- */
.logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-dot-group {
    position: relative;
    width: 12px;
    height: 12px;
}

.logo-dot.main {
    width: 100%; height: 100%;
    background: #000;
    border-radius: 50%;
    position: relative; z-index: 2;
}

.logo-dot.glow {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--accent-blue);
    border-radius: 50%;
    filter: blur(6px);
    opacity: 0.5;
    animation: pulse 2.5s infinite; /* 緩慢的呼吸感 */
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.6); opacity: 0.6; }
    100% { transform: scale(1); opacity: 0.4; }
}

.brand-name {
    display: flex;
    align-items: baseline;
    gap: 6px;
    /* 核心細節：緊縮字距讓文字看起來更有設計感 */
    letter-spacing: -0.05em;
}

.brand-name .num {
    font-weight: 900;
    font-size: 26px; /* 加大尺寸 */
    color: #000;
    line-height: 1;
}

.brand-name .text {
    font-weight: 600;
    font-size: 19px;
    color: #000;
    text-transform: uppercase; /* 大寫鎖定增加力量感 */
    letter-spacing: -0.02em;
    opacity: 0.85;
}

/* --- 以下均保留你提供的代碼 --- */
.main-nav {
    display: flex;
    gap: 8px;
    background: rgba(0,0,0,0.04);
    padding: 6px;
    border-radius: var(--radius-pill);
}

.nav-pill-btn {
    border: none;
    background: transparent;
    padding: 8px 20px;
    border-radius: var(--radius-pill);
    font-family: inherit;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.nav-pill-btn:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.5);
}

.nav-pill-btn.active {
    background: #1A1A1E;
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.premium-btn-secondary {
    background: #FFF; border: 1px solid rgba(0,0,0,0.08);
    padding: 10px 20px; border-radius: var(--radius-pill);
    font-weight: 600; font-size: 13px; cursor: pointer; transition: 0.2s;
}
.premium-btn-secondary:hover { background: #F7F8FA; border-color: rgba(0,0,0,0.15); }

.dashboard-container { max-width: 1100px; margin: 40px auto; padding: 0 30px; }
.page-header { margin-bottom: 30px; }
.page-header h1 { font-size: 36px; font-weight: 800; margin: 0 0 15px 0; letter-spacing: -1px; }

.date-pill {
    display: inline-flex; align-items: center;
    background: #FFF; padding: 8px 16px; border-radius: var(--radius-pill);
    box-shadow: var(--shadow-soft); font-size: 13px; color: var(--text-secondary); font-weight: 500;
}
.date-pill input { border: none; outline: none; margin-left: 10px; font-family: inherit; font-weight: 600; color: var(--text-primary); background: transparent; }

.bento-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; align-items: start;}

.card {
    background: #FFF;
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-soft);
}

.main-metric-card {
    grid-row: span 2; 
    background: var(--glass-bg) !important;
    backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
    border: 1px solid var(--glass-border) !important;
    box-shadow: var(--shadow-glass) !important;
    display: flex; flex-direction: column;
}

.card-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.card h3 { margin: 0; font-size: 18px; font-weight: 700; }
.badge-pill { background: rgba(0,0,0,0.05); padding: 6px 12px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; }

.metric-hero { margin: auto 0; }
.hero-number { font-size: 72px; font-weight: 800; line-height: 1; letter-spacing: -2px; }
.hero-number small { font-size: 24px; font-weight: 600; color: var(--text-secondary); margin-left: 8px; letter-spacing: 0; }
.percentage-badge {
    display: inline-block; margin-top: 15px;
    background: #E8F9EE; color: #0D9488;
    padding: 6px 14px; border-radius: var(--radius-pill);
    font-weight: 700; font-size: 14px;
}

.zentra-progress-container { margin-top: 40px; }
.zentra-progress-track {
    height: 32px; background: rgba(0,0,0,0.04);
    border-radius: 16px; overflow: hidden;
}
.zentra-progress-fill {
    height: 100%; border-radius: 16px;
    background-image: 
        linear-gradient(45deg, rgba(255,255,255,0.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.15) 50%, rgba(255,255,255,0.15) 75%, transparent 75%, transparent),
        linear-gradient(90deg, #007AFF, #00C7BE);
    background-size: 24px 24px, 100% 100%;
    transition: width 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.input-form { display: flex; flex-direction: column; gap: 20px; margin-top: 25px; }
.input-row { display: flex; gap: 15px; }
.grow { flex: 1; }
.input-field label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.input-field input, .input-field textarea {
    width: 100%; padding: 14px;
    border: 1px solid #E5E7EB; border-radius: var(--radius-md);
    background: #F9FAFB; font-family: inherit; font-size: 14px;
    outline: none; transition: 0.2s; box-sizing: border-box; 
}
.input-field input:focus, .input-field textarea:focus { border-color: var(--accent-blue); background: #FFF; }

.premium-btn-primary {
    background: #1A1A1E; color: #FFF; border: none;
    padding: 16px; border-radius: var(--radius-md);
    font-weight: 700; font-size: 15px; cursor: pointer;
    transition: 0.3s;
}
.premium-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }

.history-list { margin-top: 25px; max-height: 400px; overflow-y: auto; }
.log-item {
    display: flex; justify-content: space-between;
    padding: 16px 0; border-bottom: 1px solid #F3F4F6;
}
.log-title { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.log-thoughts { font-size: 13px; color: var(--text-secondary); }
.log-badge { color: var(--accent-blue); font-weight: 700; font-size: 15px; text-align: right; }
.log-date { font-size: 12px; color: #C7C7CC; text-align: right; margin-top: 4px; }