/* =========================================================
   MODERN ERP UI/UX OVERRIDE (SAAS THEME)
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --erp-primary: #2563eb;        /* Xanh dương đậm chuẩn ERP */
    --erp-primary-hover: #1d4ed8;
    --erp-bg: #f8fafc;             /* Nền tổng thể xám cực sáng */
    --erp-surface: #ffffff;        /* Nền trắng cho Panel/Card */
    --erp-border: #e2e8f0;         /* Viền mỏng, tinh tế */
    --erp-text-main: #1e293b;      /* Chữ đen slate dễ đọc */
    --erp-text-muted: #64748b;
    --erp-sidebar-bg: #0f172a;     /* Sidebar tối, sang trọng */
    --erp-sidebar-hover: #1e293b;
    --erp-radius-sm: 6px;
    --erp-radius-md: 12px;
    --erp-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --erp-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* 1. TYPOGRAPHY & NỀN */
body, h1, h2, h3, h4, h5, h6, p, span, a, div, td, th {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
}
body, .content-wrapper {
    background-color: var(--erp-bg) !important;
    color: var(--erp-text-main);
    -webkit-font-smoothing: antialiased;
}

/* 2. HEADER & TOP NAV BẢN MỚI */
.main-header .navbar {
    background-color: var(--erp-surface) !important;
    box-shadow: var(--erp-shadow-sm);
    border-bottom: 1px solid var(--erp-border);
}
.main-header .logo {
    background-color: var(--erp-sidebar-bg) !important;
    color: #fff !important;
    font-weight: 700;
    font-family: 'Inter', sans-serif !important;
    border-bottom: 1px solid rgba(255,255,255,0.05) !important;
}
.main-header .sidebar-toggle {
    color: var(--erp-text-muted) !important;
}
.main-header .sidebar-toggle:hover {
    background: #f1f5f9 !important;
    color: var(--erp-primary) !important;
}

/* 3. SIDEBAR HIỆN ĐẠI */
.main-sidebar {
    background-color: var(--erp-sidebar-bg) !important;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}
.sidebar-menu > li > a {
    color: #cbd5e1 !important;
    font-weight: 500;
    padding: 12px 15px 12px 20px !important;
    border-left: 3px solid transparent !important;
    transition: all 0.2s ease;
}
.sidebar-menu > li:hover > a, 
.sidebar-menu > li.active > a {
    background: var(--erp-sidebar-hover) !important;
    color: #fff !important;
    border-left-color: var(--erp-primary) !important;
}
.sidebar .user-panel > .info > p {
    font-weight: 600;
    color: #f8fafc;
}

/* 4. CARDS & PANELS (Bo góc mềm, bóng đổ nhẹ) */
.card, .panel {
    background: var(--erp-surface) !important;
    border-radius: var(--erp-radius-md) !important;
    border: 1px solid var(--erp-border) !important;
    box-shadow: var(--erp-shadow-md) !important;
    margin-bottom: 24px;
    overflow: hidden;
}
.panel-heading, .card-header {
    background: #ffffff !important;
    border-bottom: 1px solid var(--erp-border) !important;
    padding: 16px 20px !important;
    font-weight: 600;
    color: var(--erp-text-main) !important;
}
.panel-body, .card-body {
    padding: 20px !important;
}

/* 5. FORMS TỐI ƯU TRẢI NGHIỆM GÕ */
.form-control {
    background-color: #f8fafc !important;
    border: 1px solid var(--erp-border) !important;
    border-radius: var(--erp-radius-sm) !important;
    padding: 10px 14px !important;
    height: 42px !important;
    font-size: 14px !important;
    color: var(--erp-text-main) !important;
    box-shadow: none !important;
    transition: all 0.2s ease !important;
}
.form-control:focus {
    background-color: #ffffff !important;
    border-color: var(--erp-primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15) !important;
}
label {
    font-weight: 600 !important;
    color: #334155 !important;
    font-size: 13px !important;
    margin-bottom: 6px !important;
}

/* 6. NÚT BẤM (BUTTONS) - Phẳng & Không Gradient */
.btn {
    border-radius: var(--erp-radius-sm) !important;
    font-weight: 500 !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    padding: 8px 16px !important;
    transition: all 0.2s ease !important;
    box-shadow: var(--erp-shadow-sm) !important;
    border: none !important;
}
.btn-primary { background-color: var(--erp-primary) !important; color: #fff !important; }
.btn-primary:hover { background-color: var(--erp-primary-hover) !important; transform: translateY(-1px); box-shadow: 0 4px 6px rgba(37,99,235,0.2) !important; }
.btn-default { background-color: #f1f5f9 !important; color: #475569 !important; border: 1px solid #cbd5e1 !important; box-shadow: none !important;}
.btn-default:hover { background-color: #e2e8f0 !important; color: #0f172a !important; }
.btn-success { background-color: #10b981 !important; }
.btn-danger { background-color: #ef4444 !important; }
.btn-warning { background-color: #f59e0b !important; color: #fff !important;}

/* 7. DATA TABLES HIỆN ĐẠI (Sạch sẽ, rộng rãi) */
.table { margin-bottom: 0 !important; }
.table > thead > tr > th {
    background-color: #f8fafc !important;
    color: #475569 !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    font-size: 12px !important;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--erp-border) !important;
    border-top: none !important;
    padding: 14px 16px !important;
}
.table > tbody > tr > td {
    padding: 16px !important;
    vertical-align: middle !important;
    border-top: 1px solid var(--erp-border) !important;
    color: #334155 !important;
    font-size: 14px;
}
.table-hover > tbody > tr:hover > td {
    background-color: #f1f5f9 !important;
}

/* 8. TAGS & BADGES (Bo tròn, màu pastel) */
.status-badge, .label, .badge {
    padding: 4px 10px !important;
    border-radius: 20px !important;
    font-weight: 600 !important;
    font-size: 11px !important;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.bg-new, .label-danger { background-color: #fee2e2 !important; color: #dc2626 !important; border: 1px solid #fca5a5; }
.bg-process, .label-warning { background-color: #fef3c7 !important; color: #d97706 !important; border: 1px solid #fcd34d; }
.bg-done, .label-success { background-color: #d1fae5 !important; color: #059669 !important; border: 1px solid #6ee7b7; }
.label-info { background-color: #e0f2fe !important; color: #0284c7 !important; border: 1px solid #7dd3fc; }

/* 9. MODAL CỬA SỔ HIỆN ĐẠI */
.modal-content {
    border-radius: var(--erp-radius-md) !important;
    border: none !important;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
}
.modal-header {
    background-color: var(--erp-surface) !important;
    color: var(--erp-text-main) !important;
    border-bottom: 1px solid var(--erp-border) !important;
    border-top-left-radius: var(--erp-radius-md);
    border-top-right-radius: var(--erp-radius-md);
}
.modal-header .close { color: var(--erp-text-muted) !important; opacity: 1; }
.modal-header .close:hover { color: #ef4444 !important; }
.modal-footer {
    border-top: 1px solid var(--erp-border) !important;
    background-color: #f8fafc !important;
    border-bottom-left-radius: var(--erp-radius-md);
    border-bottom-right-radius: var(--erp-radius-md);
}

/* 10. TỐI ƯU CÔNG CỤ LỌC (FILTER BAR) */
.filter-row .form-control {
    background-color: #ffffff !important;
}
.panel-default > .panel-heading + .panel-collapse > .panel-body {
    border-top: none !important;
}

/* Custom Scrollbar toàn hệ thống */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }


/* =========================================================
   11. KÉO PAGE TITLE LÊN HEADER & ĐỒNG BỘ ĐÓNG/MỞ SIDEBAR
   ========================================================= */
@media (min-width: 768px) {
    /* Ép Logo thu nhỏ lại bằng kích thước Sidebar mini */
    body.sidebar-collapse .main-header .logo {
        width: 50px !important;
        padding: 0 !important;
        overflow: hidden;
        transition: width 0.3s ease-in-out;
    }
    
    /* Ép Navbar giãn ra lấp đầy khoảng trống khi Logo thu nhỏ */
    body.sidebar-collapse .main-header .navbar {
        margin-left: 50px !important;
        transition: margin-left 0.3s ease-in-out;
    }

    /* Định vị Page Title khi mở Sidebar */
    .page-title {
        position: fixed;
        top: 0;
        left: 295px; /* 230px (Logo) + 50px (Nút Hamburger) + 15px (Lề) */
        height: 50px;
        width: calc(100% - 295px - 240px); /* 240px là trừ hao menu User bên phải */
        margin: 0 !important;
        padding: 0 !important;
        background: transparent !important;
        box-shadow: none !important;
        z-index: 1040;
        display: flex;
        align-items: center;
        justify-content: space-between;
        pointer-events: none; /* Tránh block click chuột của Header */
        transition: all 0.3s ease-in-out; /* Trượt mượt mà cùng Sidebar */
    }
    
    /* Định vị Page Title trượt theo khi đóng Sidebar */
    body.sidebar-collapse .page-title {
        left: 115px !important; /* 50px (Logo mini) + 50px (Nút Hamburger) + 15px (Lề) */
        width: calc(100% - 115px - 240px) !important;
    }

    /* Căn chỉnh Text tiêu đề */
    .page-title h1 {
        font-size: 16px !important;
        font-weight: 600 !important;
        color: var(--erp-text-main, #1e293b) !important;
        margin: 0;
        pointer-events: auto; /* Phục hồi click cho text */
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis; /* Hiện dấu ... nếu tiêu đề quá dài */
    }
    
    .page-title h1 i {
        font-size: 14px;
        margin-right: 6px;
        color: var(--erp-primary, #2563eb);
    }

    /* Các nút Action (Nhập file, Tạo mới) bên phải */
    .page-title > div:last-child {
        pointer-events: auto; 
        display: flex;
        align-items: center;
        gap: 8px;
    }

    /* Tối ưu lại nút bấm để vừa khít thanh Header */
    .page-title .btn {
        padding: 5px 12px !important;
        font-size: 12px !important;
        height: 32px !important;
        line-height: 1.5 !important;
        box-shadow: none !important;
    }

    .content-wrapper {
        padding-top: 20px !important;
    }
}

/* Giao diện Mobile giữ nguyên cấu trúc dọc */
@media (max-width: 767px) {
    .page-title {
        margin-top: -10px !important;
        margin-left: -10px !important;
        margin-right: -10px !important;
        padding: 15px !important;
        border-bottom: 1px solid var(--erp-border, #e2e8f0);
        background: #fff !important;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}