@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&family=Noto+Sans+TC:wght@400;500;700&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    /* 溫和米白/奶油色調色盤 */
    --bg-gradient: linear-gradient(135deg, #FDFBF7 0%, #F4F1EA 100%); /* 奶油米白背景 */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.9);
    --glass-shadow: 0 8px 32px 0 rgba(139, 126, 116, 0.08); /* 柔和的大地色陰影 */

    /* 按鈕與強調色 (溫暖的大地色與柔和粉橘) */
    --primary-blue: #C5B4A1;       /* 溫暖奶茶色 (取代原本的藍) */
    --primary-blue-hover: #A89582;
    --primary-pink: #E8A598;       /* 柔和珊瑚粉 (取代原本的粉紅) */
    --primary-pink-hover: #D68F81;

    --text-main: #5C544D;          /* 深褐灰色 (更溫和的文字顏色) */
    --text-light: #9B9188;
    --border-radius: 20px;
}

body {
    font-family: 'Nunito', 'Noto Sans TC', sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* ================= 佈局與側邊欄 ================= */
.app-container { display: flex; min-height: 100vh; }

.sidebar {
    width: 250px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 4px 0 24px rgba(0,0,0,0.02);
    z-index: 10;
}

.sidebar-logo {
    font-size: 22px;
    font-weight: 700;
    color: #8E7C68; /* 奶茶深色點綴 */
    text-align: center;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.nav-item {
    text-decoration: none;
    color: var(--text-main);
    padding: 14px 20px;
    border-radius: 16px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    align-items: center;
    gap: 12px;
    background: transparent;
}

.nav-item i { width: 20px; text-align: center; font-size: 18px; color: var(--primary-blue); transition: color 0.3s; }
.nav-item:hover, .nav-item.active { background: rgba(255, 255, 255, 0.9); box-shadow: 0 4px 15px rgba(139, 126, 116, 0.05); transform: translateX(5px); color: var(--primary-pink-hover); }
.nav-item:hover i, .nav-item.active i { color: var(--primary-pink-hover); }

.main-content { flex: 1; padding: 40px; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; }
.page-header h2, .page-header h1 { color: #6D635B; }

/* ================= 琉璃卡片與按鈕 ================= */
.cute-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 24px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cute-card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px 0 rgba(139, 126, 116, 0.12); }

.btn-pink, .btn-blue {
    background: var(--primary-blue); /* 統一使用溫暖奶茶色底 */
    color: #FFFFFF;
    border: 1px solid rgba(255,255,255,0.4);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(197, 180, 161, 0.4);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    backdrop-filter: blur(5px);
}

.btn-pink { background: var(--primary-pink); box-shadow: 0 4px 15px rgba(232, 165, 152, 0.4); }
.btn-pink:hover { background: var(--primary-pink-hover); transform: scale(1.05); box-shadow: 0 6px 20px rgba(232, 165, 152, 0.5); border-color: #fff; }
.btn-blue:hover { background: var(--primary-blue-hover); transform: scale(1.05); box-shadow: 0 6px 20px rgba(197, 180, 161, 0.5); border-color: #fff; }

/* ================= 輸入框與表單 ================= */
.cute-input {
    width: 100%;
    padding: 14px 16px;
    margin: 8px 0 20px 0;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(200, 190, 180, 0.4); /* 柔和的邊框 */
    border-radius: 14px;
    box-sizing: border-box;
    font-family: inherit;
    font-size: 14px;
    color: var(--text-main);
    transition: all 0.3s ease;
    outline: none;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.01);
}

.cute-input:focus { background: rgba(255, 255, 255, 0.9); border-color: var(--primary-blue); box-shadow: 0 0 0 4px rgba(197, 180, 161, 0.2), inset 0 2px 4px rgba(0,0,0,0.01); }

/* ================= 琉璃表格 ================= */
.cute-table { width: 100%; border-collapse: separate; border-spacing: 0 12px; }
.cute-table th { text-align: left; padding: 15px 20px; color: #8E7C68; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; font-size: 13px; }
.cute-table td { background: var(--glass-bg); backdrop-filter: blur(10px); padding: 16px 20px; border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); transition: all 0.2s ease; }
.cute-table td:first-child { border-radius: 16px 0 0 16px; border-left: 1px solid var(--glass-border); }
.cute-table td:last-child { border-radius: 0 16px 16px 0; border-right: 1px solid var(--glass-border); }
.cute-table tr:hover td { background: rgba(255,255,255,0.9); transform: scale(1.01); }

/* ================= 彈出視窗 Modal ================= */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.2); backdrop-filter: blur(5px); justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background: rgba(253, 251, 247, 0.95); backdrop-filter: blur(20px); padding: 35px; border-radius: 24px; width: 450px; max-height: 90vh; overflow-y: auto; border: 1px solid var(--glass-border); box-shadow: 0 20px 50px rgba(0,0,0,0.15); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; border-bottom: 2px solid rgba(200, 190, 180, 0.3); padding-bottom: 15px;}
.form-row { display: flex; gap: 15px; }
.form-col { flex: 1; }