/* ==========================================================================
   Design System & Variables
   ========================================================================== */
   :root {
    /* Color Palette - Premium Dark Theme */
    --bg-base: #0f111a;
    --bg-surface: rgba(30, 33, 43, 0.6);
    --bg-surface-hover: rgba(40, 44, 56, 0.8);
    
    --primary: #2563eb;      /* Blue */
    --primary-light: #3b82f6;
    --secondary: #10b981;    /* Emerald */
    --accent: #f43f5e;       /* Rose */
    --warning: #f59e0b;      /* Amber */
    --info: #0ea5e9;         /* Sky */

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-light));
    --gradient-success: linear-gradient(135deg, #059669, var(--secondary));
    --gradient-danger: linear-gradient(135deg, #e11d48, var(--accent));
    
    /* Shadows & Glassmorphism */
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --glass-border: 1px solid rgba(255, 255, 255, 0.05);
    --glass-blur: blur(12px);

    /* Typography */
    --font-sans: 'Inter', sans-serif;
    
    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
    /* Subtle background glow effect */
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(37, 99, 235, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.1), transparent 25%);
    background-attachment: fixed;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--bg-surface);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: rgba(255, 255, 255, 0.03);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

p {
    color: var(--text-muted);
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary);
}

/* ==========================================================================
   Layout Structure
   ========================================================================== */
.app-container {
    display: flex;
    height: 100vh;
    height: 100dvh; /* iOS Safari: tránh bị thanh địa chỉ che mất đáy trang */
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    height: 100%;
    display: flex;
    flex-direction: column;
    border-right: var(--glass-border);
    z-index: 100;
    position: relative;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-img-wrapper {
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    -webkit-text-fill-color: initial;
}

.logo-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.sidebar-nav {
    flex: 1;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-item i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.nav-item.active {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: var(--glass-border);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-main);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh; /* iOS Safari */
    position: relative;
    min-width: 0;
    overflow-x: hidden;
}

/* Top Header */
.top-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    border-bottom: var(--glass-border);
    z-index: 10;
}

.header-search {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    width: 100%;
    max-width: 300px;
    min-width: 120px;
    transition: border-color var(--transition-fast);
}

.header-search:focus-within {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.header-search i {
    color: var(--text-muted);
    margin-right: 10px;
}

.header-search input {
    background: none;
    border: none;
    color: var(--text-main);
    width: 100%;
    outline: none;
    font-family: inherit;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.icon-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.1rem;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    transform: translateY(-2px);
}

/* View Container */
.view-container {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    z-index: 1;
    min-width: 0;
}

/* ==========================================================================
   UI Components (Forms, Tables, Buttons)
   ========================================================================== */

/* Page Header */
.page-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.page-title {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
}

.page-subtitle {
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--gradient-success);
    color: var(--text-inverse);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
    background: rgba(0, 0, 0, 0.3);
}

.form-row {
    display: flex;
    gap: 1.5rem;
}

.form-row > * {
    flex: 1;
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.15);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 1rem 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: #1e212b; /* Solid background for sticky */
    position: sticky;
    top: 0;
    z-index: 5;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Badges / Tags */
.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-danger { background: rgba(225, 29, 72, 0.15); color: #fb7185; border: 1px solid rgba(225, 29, 72, 0.3); }

/* Value displays */
.value-positive { color: #34d399; font-weight: 600; }
.value-negative { color: #fb7185; font-weight: 600; }

/* Dashboard Cards */
.stat-card {
    display: flex;
    flex-direction: column;
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.icon-blue { background: rgba(14, 165, 233, 0.1); color: #38bdf8; }
.icon-green { background: rgba(16, 185, 129, 0.1); color: #34d399; }
.icon-purple { background: rgba(37, 99, 235, 0.1); color: #60a5fa; }
.icon-rose { background: rgba(244, 63, 94, 0.1); color: #fb7185; }

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-section {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Modal / Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: var(--bg-surface);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    transform: scale(0.9);
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--bg-surface);
    z-index: 10;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Active Card highlight for Debts Report */
.active-card {
    background: rgba(59, 130, 246, 0.08) !important;
    box-shadow: 0 8px 32px 0 rgba(59, 130, 246, 0.2) !important;
}

/* Reports Overview Specific Styles */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: rgba(255, 255, 255, 0.03);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.1);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.kpi-card.kpi-primary::before { background: var(--gradient-primary); }
.kpi-card.kpi-success::before { background: var(--gradient-success); }
.kpi-card.kpi-danger::before { background: var(--gradient-danger); }
.kpi-card.kpi-info::before { background: var(--info); }

.kpi-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kpi-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.kpi-icon-wrapper {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    background: rgba(255, 255, 255, 0.05);
}

.kpi-primary .kpi-icon-wrapper { color: var(--primary-light); background: rgba(59, 130, 246, 0.1); }
.kpi-success .kpi-icon-wrapper { color: var(--secondary); background: rgba(16, 185, 129, 0.1); }
.kpi-danger .kpi-icon-wrapper { color: var(--accent); background: rgba(244, 63, 94, 0.1); }
.kpi-info .kpi-icon-wrapper { color: var(--info); background: rgba(14, 165, 233, 0.1); }

/* Reports Chart Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 1200px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 380px;
    min-width: 0;
}

.chart-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chart-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-card-body {
    flex: 1;
    position: relative;
    width: 100%;
    height: 100%;
    min-width: 0;
    overflow: hidden;
}

/* =========================================================
   RESPONSIVE (mobile + tablet) — task #13
   ========================================================= */
/* Nút hamburger: hiện cả desktop để thu/mở sidebar */
.mobile-menu-btn {
    display: inline-flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.06); border: 1px solid var(--border-color);
    color: var(--text-main); width: 40px; height: 40px; border-radius: 10px;
    cursor: pointer; font-size: 1.15rem; flex-shrink: 0;
    transition: background 0.15s;
}
.mobile-menu-btn:hover { background: rgba(255,255,255,0.12); }
.sidebar-backdrop { display: none; }

/* Desktop: thu gọn sidebar -> mở rộng vùng làm việc */
@media (min-width: 769px) {
    .sidebar { transition: width 0.2s ease; }
    body.sidebar-collapsed .sidebar {
        width: 0 !important; min-width: 0; border-right: none; overflow: hidden;
    }
    body.sidebar-collapsed .sidebar * { opacity: 0; transition: opacity 0.1s; }
}

/* Tablet & Medium Screens */
@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .kpi-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .view-container { padding: 1.5rem; }
    .top-header { padding: 0 1.5rem; }
    .header-search { max-width: 200px; }
    .header-company-info .company-address, 
    .header-company-info .company-meta { display: none !important; }
    .header-company-info .company-name { font-size: 0.85rem; max-width: 180px; }
    #auth-user-badge { display: none !important; }
    .server-status span:not(.status-dot) { display: none; } /* Hide text, keep dot */
}

@media (max-width: 900px) {
    .grid-3 { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex; align-items: center; justify-content: center;
        background: rgba(255,255,255,0.06); border: 1px solid var(--border-color);
        color: var(--text-main); width: 40px; height: 40px; border-radius: 10px;
        cursor: pointer; font-size: 1.15rem; margin-right: 12px; flex-shrink: 0;
    }

    /* Sidebar trượt ra (off-canvas) */
    .sidebar {
        position: fixed; top: 0; left: 0; height: 100%;
        width: 82%; max-width: 300px;
        transform: translateX(-100%);
        transition: transform 0.28s ease;
        background: var(--bg-base);
    }
    .sidebar.open { transform: translateX(0); box-shadow: 6px 0 28px rgba(0,0,0,0.55); }
    .sidebar-backdrop {
        display: block; position: fixed; inset: 0; z-index: 99;
        background: rgba(0,0,0,0.55); opacity: 0; pointer-events: none;
        transition: opacity 0.28s ease;
    }
    .sidebar-backdrop.show { opacity: 1; pointer-events: auto; }

    .top-header { padding: 0 1rem; }
    .header-search { display: none; }
    .header-actions { gap: 0.5rem; }
    #auth-user-badge { display: none; }

    .view-container { padding: 1rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 1rem; }
    .kpi-grid { grid-template-columns: 1fr !important; }
    .charts-grid { grid-template-columns: 1fr; }
    .page-title { font-size: 1.35rem; }
    .page-header { flex-wrap: wrap; gap: 0.75rem; }

    /* Card chiếm 2 cột -> về 1 cột trên mobile */
    .glass-card[style*="span 2"] { grid-column: auto !important; }
    .table th, .table td { padding: 0.7rem 0.8rem; font-size: 0.85rem; }

    /* CARD-VIEW: bảng có class .table-card-mobile -> chuyển sang dạng thẻ trên mobile.
       Mỗi <td> cần data-label="Tên cột" để hiển thị nhãn. */
    .table-card-mobile thead { display: none; }
    .table-card-mobile, .table-card-mobile tbody, .table-card-mobile tr, .table-card-mobile td { display: block; width: 100%; }
    .table-card-mobile tr {
        background: rgba(255,255,255,0.03); border: 1px solid var(--border-color);
        border-radius: 10px; padding: 0.6rem 0.8rem; margin-bottom: 0.6rem;
    }
    .table-card-mobile td {
        padding: 0.35rem 0; border: none; display: flex; justify-content: space-between; gap: 12px;
        font-size: 0.82rem; align-items: center;
    }
    .table-card-mobile td::before {
        content: attr(data-label); font-weight: 600; color: var(--text-muted);
        flex: 0 0 40%; font-size: 0.75rem; text-transform: uppercase;
    }
    .table-card-mobile td:empty { display: none; }
}

/* ==========================================================================
   Loading states, Skeletons & Empty states (P1 / #28)
   ========================================================================== */

/* Thanh loading mảnh ở đỉnh trang */
.sm-top-loading {
    position: fixed; top: 0; left: 0; right: 0; height: 3px;
    z-index: 99999; background: rgba(255, 255, 255, 0.06); overflow: hidden;
    pointer-events: none;
}
.sm-top-loading-fill {
    position: absolute; top: 0; left: 0; height: 100%; width: 40%;
    background: var(--gradient-primary);
    animation: sm-indeterminate 1.1s ease-in-out infinite;
}
@keyframes sm-indeterminate {
    0%   { left: -40%; width: 40%; }
    50%  { left: 30%;  width: 55%; }
    100% { left: 100%; width: 40%; }
}

/* Skeleton shimmer */
.sm-skeleton {
    position: relative; overflow: hidden;
    background: rgba(255, 255, 255, 0.05); border-radius: 8px;
}
.sm-skeleton::after {
    content: ''; position: absolute; inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent,
        rgba(255, 255, 255, 0.08), transparent);
    animation: sm-shimmer 1.3s infinite;
}
@keyframes sm-shimmer { 100% { transform: translateX(100%); } }
.sm-skeleton-line { height: 14px; margin: 8px 0; }
.sm-skeleton-card { height: 96px; margin: 0; }

/* Empty state */
.sm-empty {
    text-align: center; padding: 2.5rem 1.5rem;
    color: var(--text-muted);
}
.sm-empty .sm-empty-icon {
    font-size: 2.4rem; margin-bottom: 0.75rem; opacity: 0.45;
    color: var(--primary-light);
}
.sm-empty .sm-empty-title {
    font-size: 1rem; font-weight: 600; color: var(--text-main);
    margin: 0 0 0.35rem;
}
.sm-empty .sm-empty-hint {
    font-size: 0.85rem; margin: 0 auto 1rem; max-width: 420px; line-height: 1.5;
}
.sm-empty .btn { display: inline-flex; align-items: center; gap: 0.4rem; }
/* Khi empty state nằm trong <td> của bảng */
td > .sm-empty { padding: 1.75rem 1rem; }

/* ==========================================================================
   Inline validation + Toast (P1 / #29)
   ========================================================================== */
.field-error,
input.field-error, select.field-error, textarea.field-error {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 2px rgba(244, 63, 94, 0.18) !important;
}
.field-error-msg {
    display: block; color: var(--accent);
    font-size: 0.76rem; margin-top: 4px; font-weight: 500;
}
.field-error-msg::before { content: '\26A0'; margin-right: 4px; }

/* Toast (thông báo không chặn) */
.sm-toast-wrap {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    z-index: 100000; display: flex; flex-direction: column; gap: 8px;
    align-items: center; pointer-events: none; width: max-content; max-width: 92vw;
}
.sm-toast {
    background: rgba(20, 23, 31, 0.96); color: var(--text-main);
    border: 1px solid var(--border-color); border-left: 3px solid var(--primary-light);
    border-radius: 10px; padding: 0.7rem 1rem; font-size: 0.88rem;
    box-shadow: var(--glass-shadow); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    display: flex; align-items: center; gap: 0.55rem;
    animation: sm-toast-in 0.22s ease both; max-width: 92vw;
}
.sm-toast.error   { border-left-color: var(--accent); }
.sm-toast.success { border-left-color: var(--secondary); }
.sm-toast.warning { border-left-color: var(--warning); }
.sm-toast i { font-size: 1rem; }
.sm-toast.error i   { color: var(--accent); }
.sm-toast.success i { color: var(--secondary); }
.sm-toast.warning i { color: var(--warning); }
.sm-toast.hide { animation: sm-toast-out 0.2s ease forwards; }
@keyframes sm-toast-in  { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes sm-toast-out { from { opacity: 1; } to { opacity: 0; transform: translateY(8px); } }

/* ==========================================================================
   In ấn / Xuất PDF báo cáo (P3 / #35)
   Khi bấm "In / Lưu PDF": chỉ in nội dung báo cáo, nền trắng chữ đen.
   ========================================================================== */
@media print {
    /* Ẩn toàn bộ giao diện, chỉ chừa modal báo cáo */
    body * { visibility: hidden !important; }
    #report-modal, #report-modal * { visibility: visible !important; }

    /* Đưa báo cáo ra full trang, bỏ nền tối/overlay */
    #report-modal {
        position: absolute !important; inset: 0 !important;
        display: block !important; background: #fff !important;
        padding: 0 !important; overflow: visible !important;
    }
    #report-modal .modal {
        max-width: 100% !important; width: 100% !important;
        box-shadow: none !important; border: none !important;
        background: #fff !important; margin: 0 !important;
    }
    .report-container, .report-container * {
        color: #111 !important; background: transparent !important;
    }
    .report-container {
        padding: 0.5cm 0 !important; box-shadow: none !important; border: none !important;
    }
    /* Đường kẻ/viền sang tông in được */
    .report-container [style*="border"] { border-color: #ccc !important; }
    .report-container h2 { color: #1a1a1a !important; }
    .report-container table { border-collapse: collapse !important; width: 100% !important; }
    .report-container th, .report-container td {
        border: 1px solid #ccc !important; padding: 6px 8px !important;
    }
    /* Không in các phần tử đánh dấu no-print (nút bấm...) */
    .no-print, .sidebar, .sidebar-backdrop, .server-status,
    .sm-top-loading, .sm-toast-wrap { display: none !important; }

    @page { margin: 1.2cm; size: A4; }
    html, body { background: #fff !important; }
}

/* ===== Báo cáo tháng theo tàu (print-container) — port từ V5 ===== */
.print-container { background:#fff; color:#1e293b; padding:1.5rem; border-radius:8px; }
.print-container .print-header { text-align:center; margin-bottom:1rem; }
.print-container .print-header h2 { color:#0f172a; margin:0 0 4px; font-size:1.25rem; }
.print-container .print-header h3 { color:#334155; margin:0; font-size:1rem; }
.report-print-table { font-size:0.85rem; border:1px solid #cbd5e1; }
.report-print-table th, .report-print-table td { border:1px solid #cbd5e1; padding:6px 8px; color:#1e293b; }
.report-print-table .psr td { background:#fff; }
.print-input, .print-input-desc { width:100%; padding:4px 6px; border:1px solid #cbd5e1; border-radius:4px; background:#fff; color:#1e293b; font-size:0.85rem; }
.print-input-amount { text-align:right; }
.btn-delete-row { background:none; border:none; color:#ef4444; cursor:pointer; font-size:0.9rem; }
.report-print-table .pac { width:40px; text-align:center; }

@media print {
    .print-container, .print-container * { color:#111 !important; background:#fff !important; }
    .print-container .print-input, .print-container .print-input-desc {
        border:none !important; background:transparent !important; padding:0 !important; font-weight:inherit;
    }
    .report-print-table th, .report-print-table td { border:1px solid #999 !important; }
    .btn-delete-row, .pac { display:none !important; }
}

/* ===== Thanh cuộn kép cho bảng rộng (port từ V5) ===== */
.double-scroll-wrapper .top-scrollbar {
    overflow-x: auto; overflow-y: hidden; display: none;
}
.double-scroll-wrapper .top-scrollbar-dummy { height: 1px; }
.double-scroll-wrapper .top-scrollbar::-webkit-scrollbar { height: 10px; }
.double-scroll-wrapper .top-scrollbar::-webkit-scrollbar-thumb {
    background: var(--primary-light); border-radius: 6px;
}
.double-scroll-wrapper .top-scrollbar::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); }

/* ===== Thông tin công ty ở header (giống V5) ===== */
.header-company-info { display:flex; flex-direction:column; justify-content:center; gap:2px; max-width:50%; }
.header-company-info .company-name { font-size:0.95rem; font-weight:700; color:var(--primary-light); letter-spacing:0.5px; white-space:nowrap; text-overflow:ellipsis; overflow:hidden; text-transform:uppercase; }
.header-company-info .company-address { display:flex; align-items:center; gap:4px; font-size:0.75rem; color:var(--text-muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.header-company-info .company-address i { color:var(--secondary); font-size:0.7rem; }
.header-company-info .company-meta { display:flex; align-items:center; gap:0.75rem; font-size:0.75rem; color:var(--text-muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.header-company-info .detail-item { display:inline-flex; align-items:center; gap:4px; }
.header-company-info .detail-item i { color:var(--secondary); font-size:0.7rem; }
.header-company-info .detail-divider { color:var(--border-color); font-size:0.75rem; user-select:none; }
@media (max-width: 768px) {
    .header-company-info .company-address, .header-company-info .company-meta { display:none; }
    .header-company-info .company-name { font-size:0.8rem; max-width:150px; }
}

/* ===== Tìm kiếm toàn cục ===== */
.search-results {
    position: absolute; top: calc(100% + 6px); left: 0; right: 0; min-width: 340px;
    background: #161a26; border: 1px solid var(--border-color);
    border-radius: 10px; box-shadow: 0 20px 45px -10px rgba(0,0,0,0.85);
    max-height: 60vh; overflow-y: auto; z-index: 200; padding: 6px;
}
.search-results .search-item {
    display: flex; align-items: center; gap: 10px; padding: 8px 10px;
    border-radius: 8px; cursor: pointer; transition: background 0.12s;
}
.search-results .search-item:hover { background: rgba(255,255,255,0.07); }
.search-results .search-item > i { color: var(--primary-light); width: 18px; text-align: center; flex-shrink: 0; }
.search-results .search-item-main { flex: 1; min-width: 0; }
.search-results .search-item-label { font-size: 0.88rem; color: var(--text-main); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-results .search-item-sub { font-size: 0.74rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-results .search-item-type {
    font-size: 0.68rem; color: var(--text-muted); background: rgba(255,255,255,0.06);
    padding: 2px 7px; border-radius: 20px; flex-shrink: 0;
}
.search-results .search-empty { padding: 12px; text-align: center; color: var(--text-muted); font-size: 0.82rem; }