/* Dark Theme for POS Restaurant System */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --primary: #00d4aa;
    --primary-dark: #00a889;
    --accent: #0066ff;
    --accent-light: #3399ff;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border: #3a3a3a;
    --success: #00d4aa;
    --error: #ff3333;
    --warning: #ffaa00;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.6;
}

/* Header & Navigation */
.navbar {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #001a4d 100%);
    border-bottom: 2px solid var(--primary);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: 1px;
    white-space: nowrap;
}

.navbar-nav {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.navbar-nav a {
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    white-space: nowrap;
}

.navbar-nav a:hover {
    color: var(--primary);
    background-color: rgba(0, 212, 170, 0.1);
    transform: translateY(-2px);
}

.logout-link {
    background-color: var(--error) !important;
    color: white !important;
    padding: 0.5rem 1.5rem !important;
}

.logout-link:hover {
    background-color: #cc0000 !important;
    transform: translateY(-2px) !important;
}

.user-info {
    color: var(--text-secondary);
    font-size: 13px;
    padding: 0.5rem 1rem;
    white-space: nowrap;
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
    border: 1px solid var(--border);
    border-top: 2px solid var(--primary);
    border-radius: 6px;
    padding: 0.5rem 0;
    min-width: 200px;
    list-style: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 1001;
    margin-top: 0.5rem;
}

.nav-dropdown.open .dropdown-menu {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem !important;
    color: var(--text-primary);
    font-size: 14px;
}

.dropdown-menu a:hover {
    background-color: rgba(0, 212, 170, 0.1) !important;
    padding-left: 1.75rem !important;
}

/* Burger Menu */
.burger-menu {
    display: none !important;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
    padding: 0.5rem;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: all 0.3s;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Menu Backdrop Overlay */
.menu-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.menu-backdrop.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* Mobile Navigation */
@@media (max-width: 1024px) {
    .navbar {
        padding: 1rem;
        flex-wrap: wrap;
    }

    .burger-menu {
        display: flex !important;
    }

    .navbar-nav {
        display: none !important;
        flex-direction: column;
        gap: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
        border-bottom: 2px solid var(--primary);
        width: 100%;
        padding: 1rem 0;
        border-top: 1px solid var(--border);
        z-index: 999;
    }

    .navbar-nav.active {
        display: flex !important;
    }

    .navbar-nav li {
        width: 100%;
    }

    .navbar-nav a {
        display: block;
        padding: 1rem 2rem;
        border-radius: 0;
    }

    .nav-dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        display: none;
        background-color: rgba(0, 212, 170, 0.05);
        border: none;
        border-left: 3px solid var(--primary);
        border-radius: 0;
        box-shadow: none;
        margin-top: 0;
    }

    .nav-dropdown.open .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding: 0.75rem 2rem 0.75rem 3rem !important;
        font-size: 13px;
    }

    .dropdown-menu a:hover {
        padding-left: 3.25rem !important;
    }

    .navbar-nav li:last-child {
        margin-left: 0;
        margin-top: 1rem;
        border-top: 1px solid var(--border);
    }
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cards */
.card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transition: all 0.3s;
    min-width: 0;
}

.card:hover {
    border-color: var(--primary);
    box-shadow: 0 12px 32px rgba(0, 212, 170, 0.15);
    transform: translateY(-4px);
}

.card-header {
    border-bottom: 2px solid var(--primary);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
    background-color: rgba(0, 212, 170, 0.02);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-primary);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.4);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 12px;
    text-transform: none;
    letter-spacing: 0;
    background: var(--primary);
    color: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 212, 170, 0.15);
    transition: all 0.2s;
}

.btn-small:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.25);
}


    background-color: var(--error);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 51, 51, 0.2);
}

.btn-danger:hover {
    background-color: #cc0000;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 51, 51, 0.4);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 12px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.table thead {
    background: linear-gradient(90deg, var(--bg-tertiary) 0%, rgba(0, 212, 170, 0.05) 100%);
    border-bottom: 2px solid var(--primary);
}

.table th {
    padding: 1rem;
    text-align: left;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.table tbody tr:hover {
    background-color: rgba(0, 212, 170, 0.05);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success {
    background-color: rgba(0, 212, 170, 0.15);
    color: #00d4aa;
    border-left-color: #00d4aa;
}

.alert-error {
    background-color: #ff3333;
    color: #ffffff;
    border-left-color: #ff3333;
}

.alert-warning {
    background-color: rgba(255, 170, 0, 0.2);
    color: #ffaa00;
    border-left-color: #ffaa00;
}

.alert-info {
    background-color: rgba(51, 153, 255, 0.15);
    color: #3399ff;
    border-left-color: #3399ff;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    pointer-events: none;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.modal-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
    padding: 2.5rem;
    border-radius: 12px;
    border: 2px solid var(--primary);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 212, 170, 0.2);
    text-align: center;
    animation: slideIn 0.3s ease-out;
}

@media (max-width: 1024px) {
    .modal.show {
        align-items: center;
        justify-content: center;
        padding: 1rem;
    }

    .modal-content {
        width: 95%;
        max-width: 95%;
        padding: 1.5rem;
        max-height: 85vh;
        margin: 0;
    }
}

@media (max-width: 768px) {
    .modal.show {
        align-items: center;
        justify-content: center;
        padding: 0.5rem;
        overflow-y: auto;
    }

    .modal-content {
        width: calc(100% - 1rem);
        max-width: calc(100% - 1rem);
        padding: 1.25rem;
        max-height: calc(100vh - 2rem);
        border-radius: 8px;
        margin: auto 0;
    }

    .modal-header {
        font-size: 18px;
        margin-bottom: 1rem;
    }

    .modal-body {
        margin: 0.75rem 0;
        font-size: 14px;
    }

    .modal-body .form-label {
        font-size: 11px;
        margin-bottom: 0.35rem;
    }

    .modal-body .form-control {
        padding: 0.65rem;
        font-size: 16px;
        min-height: 44px;
    }

    .modal-footer {
        gap: 0.5rem;
        margin-top: 1.25rem;
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
        min-height: 44px;
        font-size: 14px;
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    @keyframes slideIn {
        from {
            opacity: 0;
            transform: scale(0.95);
        }
        to {
            opacity: 1;
            transform: scale(1);
        }
    }
}

.modal-header {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-body {
    margin: 1rem 0;
    color: var(--text-primary);
}

/* Modal Form Styling */
.modal-body .form-group {
    margin-bottom: 1.5rem;
}

.modal-body .form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: #ffffff;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.modal-body .form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: #ffffff;
    color: #000000;
    border: 1px solid #cccccc;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
}

.modal-body .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.2);
    background-color: #ffffff;
}

.modal-body .form-control::placeholder {
    color: #666666;
}

.modal-body select.form-control {
    background-color: #ffffff;
    color: #000000;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 20px;
    padding-right: 40px;
}

.modal-body select.form-control option {
    background-color: #ffffff;
    color: #000000;
    padding: 8px 12px;
    line-height: 1.5;
}

.modal-body select.form-control option:checked {
    background: linear-gradient(#00d4aa, #00d4aa);
    background-color: #00d4aa !important;
    color: #000000;
}

.modal-body input[type="checkbox"] {
    margin-right: 0.5rem;
}

.modal-body label {
    color: #ffffff;
    font-weight: 500;
}

.modal-footer {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Loading Spinner */
.spinner {
    border: 4px solid rgba(0, 212, 170, 0.2);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Grid Layout */
.grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-2-responsive {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-4-responsive {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1200px) {
    .grid-4-responsive {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2-responsive {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .grid-4-responsive {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2-responsive {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .grid-4-responsive {
        grid-template-columns: repeat(1, 1fr);
    }

    .grid-2-responsive {
        grid-template-columns: 1fr;
    }
}

/* Login Page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #001a4d 100%);
}

.login-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
    padding: 2.5rem;
    border-radius: 12px;
    border: 2px solid var(--primary);
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 212, 170, 0.2);
}

.login-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Status Badge */
.badge {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: rgba(0, 212, 170, 0.25);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-warning {
    background-color: rgba(255, 170, 0, 0.25);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.badge-error {
    background-color: rgba(255, 51, 51, 0.25);
    color: var(--error);
    border: 1px solid var(--error);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .navbar {
        padding: 1rem;
    }

    h1 {
        font-size: 24px !important;
    }

    .card {
        padding: 1rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 12px;
    }

    .table {
        font-size: 12px;
    }

    .table th,
    .table td {
        padding: 0.75rem 0.5rem;
    }

    .grid-4-responsive,
    .grid-2, 
    .grid-3, 
    .grid-4 {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.75rem;
    }

    .navbar {
        padding: 0.75rem;
    }

    h1 {
        font-size: 20px !important;
    }

    .card {
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .card-title {
        font-size: 16px !important;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 11px;
    }

    div[style*="font-size: 28px"] {
        font-size: 20px !important;
    }

    div[style*="font-size: 32px"] {
        font-size: 24px !important;
    }

    .table {
        font-size: 11px;
    }

    .table th,
    .table td {
        padding: 0.5rem 0.25rem;
    }

    .grid-4-responsive,
    .grid-2-responsive,
    .grid-2, 
    .grid-3, 
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .navbar-nav a {
        padding: 0.75rem 1.5rem !important;
    }
}

/* Reports Page Styling */
.reports-container {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.report-selector {
    margin-bottom: 2rem;
}

.report-tabs {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1.5rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-primary);
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.2);
}

.filter-card {
    margin-bottom: 2rem;
}

.filter-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.metric-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.05) 100%);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.1);
    transition: all 0.3s;
}

.metric-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.2);
    transform: translateY(-4px);
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-family: 'Courier New', monospace;
}

.metric-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.report-section {
    animation: fadeIn 0.3s ease-in;
}

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

.text-center {
    text-align: center;
}

/* Badge Styling */
.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: rgba(0, 212, 170, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-danger {
    background-color: rgba(255, 51, 51, 0.2);
    color: var(--error);
    border: 1px solid var(--error);
}

.badge-warning {
    background-color: rgba(255, 170, 0, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.badge-info {
    background-color: rgba(0, 102, 255, 0.2);
    color: var(--accent-light);
    border: 1px solid var(--accent-light);
}

/* Enhance card styling for reports */
.card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(0, 212, 170, 0.03) 100%);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

/* Table enhancements */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.table thead {
    background: linear-gradient(90deg, var(--bg-tertiary) 0%, rgba(0, 212, 170, 0.05) 100%);
    border-bottom: 2px solid var(--primary);
}

.table th {
    padding: 1rem;
    text-align: left;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.table tbody tr:hover {
    background-color: rgba(0, 212, 170, 0.05);
    transition: all 0.2s;
}

/* Responsive */
@media (max-width: 768px) {
    .reports-container {
        padding: 1rem;
    }

    .report-tabs {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }

    .filter-group {
        grid-template-columns: 1fr;
    }

    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .table {
        font-size: 12px;
    }

    .table th,
    .table td {
        padding: 0.5rem;
    }

    .metric-value {
        font-size: 20px;
    }
}