/* Theme: ขาว ดำ เทา ทันสมัย */
body {
    background-color: #f4f6f9;
    /*background: linear-gradient(135deg, #059669  0%, #115e59  100%);*/
    font-family: 'Sarabun', sans-serif;
    color: #333;
}

/* Navbar */
.navbar {
    padding: 0.8rem 1rem;
}
.navbar-brand {
    letter-spacing: 1px;
}

/* Card Styling */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    overflow: hidden;
}

/* Countdown Section */
.countdown-wrapper {
    background: linear-gradient(135deg, #2c3e50 0%, #000000 100%);
    color: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 30px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}
.time-box {
    background: rgba(255,255,255,0.1);
    padding: 10px 15px;
    border-radius: 8px;
    min-width: 80px;
    backdrop-filter: blur(5px);
}
.time-val {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    display: block;
}
.time-label {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Tabs Styling */
.nav-tabs {
    border-bottom: 2px solid #dee2e6;
}
.nav-tabs .nav-link {
    color: #6c757d;
    font-weight: 600;
    border: none;
    border-bottom: 3px solid transparent;
    padding: 12px 20px;
}
.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: #000;
}
.nav-tabs .nav-link.active {
    color: #000;
    border-bottom: 3px solid #000;
    background: transparent;
}
.tab-content {
    background: #fff;
    padding: 20px;
    border-radius: 0 0 12px 12px;
}

/* Scanner */
#reader {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
}

/* บังคับสีเขียวให้ชนะทุกอย่าง */
table.dataTable tbody tr.table-success td {
    background-color: #d1e7dd !important; /* สีเขียวอ่อน */
}