@import url('https://fonts.googleapis.com/css2?family=Padauk:wght@400;700&display=swap');

:root {
    --bg: var(--tg-theme-bg-color, #f4f6f9);
    --text: var(--tg-theme-text-color, #1a1a1a);
    --hint: var(--tg-theme-hint-color, #999999);
    --card-bg: var(--tg-theme-secondary-bg-color, #ffffff);
    --primary: #3b82f6; 
    --primary-text: #ffffff;
    --danger: #ff4757;
    --success: #2ed573;
    --warning: #ffa502;
    --border-radius: 16px;
    --shadow: 0 4px 15px rgba(0,0,0,0.05);
}

body {
    font-family: 'Padauk', sans-serif;
    background-color: var(--bg);
    background-image: url('/uploads/bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    color: var(--text);
    padding: 16px;
    margin: 0;
    padding-bottom: 110px;
    -webkit-tap-highlight-color: transparent;
}

body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg);
    opacity: 0.75; 
    z-index: -1;
    pointer-events: none;
}

h1, h2, h3, h4 { margin: 0; }
.header { text-align: center; margin-bottom: 24px; padding: 10px; }
.header h1 { color: var(--primary); font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.header p { font-size: 14px; color: var(--hint); margin: 0; }
.balance-badge {
    display: inline-block; background: rgba(59, 130, 246, 0.1); color: var(--primary);
    padding: 8px 16px; border-radius: 20px; font-weight: 700; font-size: 15px;
    margin-top: 10px; border: 1px solid rgba(59, 130, 246, 0.2);
}

.category-title { font-size: 17px; font-weight: 700; margin: 24px 0 12px 0; color: var(--text); display: flex; align-items: center; gap: 8px; }
.category-title::after { content: ""; flex: 1; height: 1px; background: linear-gradient(to right, var(--hint), transparent); opacity: 0.3; }

.card { 
    background-color: var(--card-bg); 
    padding: 16px; 
    border-radius: var(--border-radius); 
    margin-bottom: 12px; 
    box-shadow: var(--shadow); 
    display: flex; 
    flex-direction: column; 
    gap: 12px; 
    transition: transform 0.2s ease; 
}

.item-card { display: flex; flex-direction: row; justify-content: space-between; align-items: center; }
.item-info { display: flex; flex-direction: column; gap: 4px; }
.item-name { font-weight: 700; font-size: 15px; color: var(--text); }
.item-price { color: var(--danger); font-weight: 700; font-size: 16px; }
.item-tutorial { font-size: 12px; color: var(--primary); text-decoration: none; font-weight: bold; display: inline-block;}

.btn { background-color: var(--primary); color: var(--primary-text); border: none; padding: 12px 20px; border-radius: 10px; font-weight: 700; font-size: 14px; cursor: pointer; transition: all 0.2s ease; display: inline-flex; justify-content: center; align-items: center; box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2); }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; box-shadow: none;}
.btn-danger { background-color: var(--danger); }
.btn-success { background-color: var(--success); }
.btn-warning { background-color: var(--warning); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); box-shadow: none; }

input, textarea, select { width: 100%; box-sizing: border-box; padding: 14px; margin-bottom: 12px; border: 1px solid rgba(0,0,0,0.1); border-radius: 12px; background-color: var(--bg); color: var(--text); font-family: inherit; font-size: 15px; }
input:focus, textarea:focus { outline: none; border-color: var(--primary); }

/* Navigation */
#nav-container { position: fixed; bottom: 0; left: 0; width: 100%; z-index: 100; }

.bottom-nav { background: var(--card-bg); border-top: 1px solid rgba(0,0,0,0.05); padding: 12px 0 20px 0; }

#user-nav { display: flex; justify-content: space-around; }

/* 🔴 Admin Nav (၄ ခုစီ ၂ တန်း) */
#admin-nav { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 10px 5px; 
    padding: 10px 10px 20px 10px; 
}

.nav-item { text-align: center; font-size: 11px; color: var(--hint); cursor: pointer; transition: all 0.3s; font-weight: 700; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.nav-item.active { color: var(--primary); }
.nav-item span { font-size: 22px; transition: transform 0.3s; }
.nav-item.active span { transform: translateY(-2px) scale(1.1); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.badge { padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: bold; }
.bg-pending { background: rgba(255, 165, 2, 0.15); color: var(--warning); }
.bg-success { background: rgba(46, 213, 115, 0.15); color: var(--success); }
.bg-danger { background: rgba(255, 71, 87, 0.15); color: var(--danger); }

.filter-bar { display: flex; gap: 10px; margin-bottom: 16px; overflow-x: auto; padding-bottom: 5px;}
.filter-btn { padding: 10px 20px; border: 1px solid rgba(0,0,0,0.1); background: var(--card-bg); color: var(--text); border-radius: 20px; font-weight: 700; cursor: pointer; white-space: nowrap; font-size: 13px; }
.filter-btn.active { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }

.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(5px); justify-content: center; align-items: center; z-index: 1000; }
.modal.show { display: flex; }
.modal-content { background: var(--card-bg); padding: 24px; border-radius: 20px; width: 85%; max-width: 320px; text-align: center; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.modal-btns { display: flex; gap: 12px; margin-top: 20px; }
.modal-btns button { flex: 1; }

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--card-bg); padding: 16px; border-radius: var(--border-radius); text-align: center; box-shadow: var(--shadow); }
.stat-card h4 { font-size: 13px; color: var(--hint); margin-bottom: 8px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--primary); }

#maintenance-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg); z-index: 9999; flex-direction: column; justify-content: center; align-items: center; text-align: center; }