* {
    margin: 0;
    padding: 0;
    border: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
/* Reset */
:focus { outline: 0; }
a { color: #1e40af; text-decoration: none; transition: all 0.2s; }
a:hover { color: #3b82f6; text-decoration: underline; }
img {
    max-width: 100%;
    height: auto;
    vertical-align: text-top;
    border-radius: 4px;
}
/* ==================== FONT TOÀN BỘ WEBSITE ==================== */
body, input, textarea, select, button, .card-header, .btn, p, h1, h2, h3, h4, h5, h6 {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    font-size: 14.5px;
    line-height: 1.5;
}
/* Font size điều chỉnh nhẹ cho một số phần */
h3 { font-size: 16px; padding: 0 0 8px 0; }
.card-header { font-size: 15.5px; font-weight: 600; }
.btn { font-size: 14px; font-weight: 500; }
/* Helpers */
p { margin-bottom: 8px; }
p:last-child { margin-bottom: 0; }
textarea, input, select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 14.5px;
    transition: all 0.2s;
}
textarea:focus, input:focus, select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}
ul { padding-left: 20px; }
/* Helpers */
.mb-3, .my-3 { margin-bottom: 12px; }
.mb-2 { margin-bottom: 8px; }
.mt-3, .my-3 { margin-top: 12px; }
.mr-sm-2 { margin-right: 8px; }
.text-muted { color: #64748b; }
/* ==================== MAIN LAYOUT ==================== */
body {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    color: #0f172a;
    max-width: 920px;
    margin: 0 auto;
    padding: 8px 0;
}
#container {
    padding: 12px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.1),
                0 4px 6px -2px rgba(15, 23, 42, 0.05);
}
/* Top Menu */
.top-menu {
    background-color: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #334155;
    padding: 10px 12px;
    margin-bottom: 12px;
    border-radius: 8px;
}
/* Alerts */
.alert {
    padding: 10px 12px;
    margin-bottom: 12px;
    border-radius: 8px;
    border: 1px solid transparent;
}
.alert-success { color: #14532d; background: #ecfdf5; border-color: #a7f3d0; }
.alert-info { color: #164e63; background: #f0f9ff; border-color: #bae6fd; }
.alert-warning { color: #854d0e; background: #fefce8; border-color: #fde047; }
.alert-danger { color: #991b1b; background: #fef2f2; border-color: #fecaca; }
/* Form */
.form-group { margin-bottom: 12px; }
.form-group:last-child { margin-bottom: 0; }
.form-control {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
}
.form-inline .form-control { width: auto; }
/* Buttons */
.btn {
    display: inline-block;
    text-align: center;
    white-space: nowrap;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    border: 1px solid #1e40af;
}
.btn-primary:hover {
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}
.btn-success { background-color: #10b981; border-color: #10b981; }
.btn-success:hover { background-color: #059669; }
.btn-warning { background-color: #f59e0b; border-color: #f59e0b; }
.btn-warning:hover { background-color: #d97706; }
.btn-danger { background-color: #ef4444; border-color: #ef4444; }
.btn-danger:hover { background-color: #dc2626; }
.btn + .btn { margin-left: 8px; }
/* Breadcrumb */
.breadcrumb {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    padding: 10px 12px;
    margin-bottom: 12px;
    border-radius: 8px;
}
.breadcrumb a { color: #bae6fd; }
/* Card */
.card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(15, 23, 42, 0.08);
    margin-bottom: 12px;
}
.card-header {
    padding: 12px 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    border-bottom: none;
}
.card-body {
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-top: none;
    border-radius: 0 0 10px 10px;
}
.card-footer {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-top: none;
    color: #475569;
    padding: 12px 16px;
}
/* List Group */
.list-group-item {
    padding: 10px 14px;
    border: 1px solid #e2e8f0;
    border-top: none;
    transition: background 0.2s;
}
.list-group-item:hover {
    background-color: #f8fafc;
}
/* Pagination */
.pagination > span, .pagination > a {
    padding: 8px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    margin-left: 6px;
    transition: all 0.2s;
}
.pagination > span:first-child, .pagination > a:first-child {
    margin-left: 0;
}
.pagination .current {
    background-color: #3b82f6;
    color: #fff;
    border-color: #3b82f6;
}
/* BBCode */
.spoilerhead {
    background: #f1f5f9;
    color: #1e2937;
    padding: 8px 12px;
    border-radius: 6px 6px 0 0;
    border: 1px solid #cbd5e1;
}
.spoilerbody {
    background: #fff;
    border: 1px solid #cbd5e1;
    border-top: none;
    padding: 12px;
    border-radius: 0 0 6px 6px;
}
.quote {
    border-left: 4px solid #64748b;
    color: #475569;
    padding-left: 12px;
    margin: 12px 0;
}
.quote_header {
    background-color: #f1f5f9;
    padding: 6px 10px;
    font-weight: 600;
    border-bottom: 1px solid #e2e8f0;
}
/* Forum Post */
.forum-post .post-content {
    margin: 8px -4px;
    padding: 14px;
    border-top: 1px solid #e2e8f0;
    background: #fff;
    border-radius: 6px;
}
/* Avatar */
.avatar img {
    height: 60px;
    width: 60px;
    border-radius: 8px;
    object-fit: cover;
}

.win{
    color:#dc2626;
    font-weight:700;
    
}

.lose{
    color:#16a34a;
    font-weight:700;
}

.neutral{
    color:#666;
    font-weight:700;
}