/* Modern Transport Management System - Red & Black Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for Theme */
:root {
    --primary-red: #dc2626;
    --primary-red-dark: #b91c1c;
    --primary-red-light: #ef4444;
    --primary-black: #0a0a0a;
    --secondary-black: #1a1a1a;
    --tertiary-black: #262626;
    --gray-dark: #404040;
    --gray-medium: #525252;
    --gray-light: #737373;
    --text-primary: #ffffff;
    --text-secondary: #d4d4d4;
    --text-muted: #a3a3a3;
    --border-color: #404040;
    --success-color: #16a34a;
    --warning-color: #ea580c;
    --danger-color: #dc2626;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--primary-black);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-black);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-red);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-red-dark);
}

/* Login Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
    padding: 2rem;
}

.login-box {
    background: var(--secondary-black);
    border: 1px solid var(--border-color);
    padding: 3rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.login-logo {
    height: 80px;
    width: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-red);
    box-shadow: 0 0 20px rgba(220, 38, 38, 0.3);
}

.login-box h2 {
    color: var(--primary-red);
    margin-bottom: 2rem;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.login-box .form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.login-box label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.login-box input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--tertiary-black);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
    outline: none;
}

.login-box input:focus {
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.login-box button {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 0.5rem;
}

.login-box button:hover {
    background: linear-gradient(135deg, var(--primary-red-dark) 0%, var(--primary-red) 100%);
    transform: translateY(-1px);
}

.error-message {
    color: var(--danger-color);
    margin-top: 0.75rem;
    font-size: 0.75rem;
    display: none;
    text-align: center;
}

/* Header Styles */
header {
    background: var(--secondary-black);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-red);
    letter-spacing: -0.025em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logout-btn {
    padding: 0.5rem 1rem;
    background: var(--primary-red);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logout-btn:hover {
    background: var(--primary-red-dark);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-md);
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--tertiary-black);
}

/* App Container */
.app-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar Navigation */
nav.sidebar {
    width: 280px;
    background: var(--secondary-black);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem 0 0 0;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    overflow-y: auto;
    height: calc(100vh - 73px);
    position: sticky;
    top: 73px;
    z-index: 50;
}

/* Minimized sidebar */
nav.sidebar.collapsed {
    width: 70px;
    padding: 1rem 0 0 0;
}

.sidebar-header {
    padding: 0 1.5rem 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

nav.sidebar.collapsed .sidebar-header {
    padding: 0 0.5rem 1rem;
    margin-bottom: 1rem;
}

.sidebar-logo {
    height: 80px;
    width: 80px;
    margin: 0 auto;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-red);
    transition: all 0.3s ease;
}

nav.sidebar.collapsed .sidebar-logo {
    height: 40px;
    width: 40px;
}

/* Sidebar navigation buttons container */
.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Sidebar toggle button container */
.sidebar-toggle-container {
    margin-top: auto;
    padding: 1rem 0;
    position: relative;
}

/* Sidebar toggle button */
.sidebar-toggle {
    position: absolute;
    bottom: 20px;
    right: -12px;
    width: 24px;
    height: 24px;
    background: var(--primary-red);
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    z-index: 60;
}

.sidebar-toggle:hover {
    background: var(--primary-red-dark);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

nav.sidebar button {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: left;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 3px solid transparent;
    position: relative;
    white-space: nowrap;
    overflow: hidden;
}

nav.sidebar.collapsed button {
    padding: 0.875rem 0.5rem;
    justify-content: center;
    text-align: center;
}

nav.sidebar.collapsed button span {
    display: none;
}

nav.sidebar button:hover {
    background: var(--tertiary-black);
    color: var(--text-primary);
    border-left-color: var(--primary-red);
}

nav.sidebar button.active {
    background: rgba(220, 38, 38, 0.1);
    color: var(--primary-red);
    border-left-color: var(--primary-red);
    font-weight: 600;
}

nav.sidebar button i {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

/* Tooltip for minimized sidebar */
nav.sidebar.minimized button {
    position: relative;
}

nav.sidebar.minimized button:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 10px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--tertiary-black);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 100;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: tooltipFade 0.3s ease forwards;
}

@keyframes tooltipFade {
    from { opacity: 0; transform: translateY(-50%) translateX(-5px); }
    to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

/* Main Content Area */
main.content-area {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background: var(--primary-black);
    height: calc(100vh - 73px);
}

/* Sections */
section {
    display: none;
    background: var(--secondary-black);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

section.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

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

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

.section-header h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.section-description {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

/* Buttons */
.add-btn {
    background: linear-gradient(135deg, var(--success-color) 0%, #15803d 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.add-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.action-btn {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 0.5rem;
    min-width: 60px;
    justify-content: center;
    text-align: center;
    line-height: 1.2;
}

.edit-btn {
    background: var(--warning-color);
    color: white;
}

.edit-btn:hover {
    background: #c2410c;
    transform: translateY(-1px);
}

.delete-btn {
    background: var(--danger-color);
    color: white;
}

.delete-btn:hover {
    background: var(--primary-red-dark);
    transform: translateY(-1px);
}

/* Actions column styling */
td:last-child {
    white-space: nowrap;
    min-width: 140px;
    text-align: center;
}

/* Table cell improvements for action buttons */
table td {
    vertical-align: middle;
}

/* Ensure consistent button sizing in tables */
.table-container .action-btn {
    margin-bottom: 0.25rem;
}

/* Last action button in row should have no right margin */
.action-btn:last-child {
    margin-right: 0;
}

/* Filter Container */
.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--tertiary-black);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    align-items: center;
}

.filter-container label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0;
    white-space: nowrap;
}

.filter-container select {
    min-width: 160px;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--secondary-black);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.filter-container select:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

#applyFilter, .pdf-btn {
    background: var(--primary-red);
    color: white;
    border: none;
    padding: 0.625rem 1.25rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#applyFilter:hover, .pdf-btn:hover {
    background: var(--primary-red-dark);
    transform: translateY(-1px);
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--secondary-black);
}

thead {
    background: var(--tertiary-black);
    position: sticky;
    top: 0;
    z-index: 10;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
    vertical-align: middle;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(220, 38, 38, 0.05);
}

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

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

/* Footer */
tfoot {
    background: var(--tertiary-black);
    font-weight: 600;
}

tfoot td {
    border-top: 2px solid var(--primary-red);
    color: var(--text-primary);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--tertiary-black);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
    font-family: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

button[type="submit"] {
    background: var(--primary-red);
    color: white;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

button[type="submit"]:hover {
    background: var(--primary-red-dark);
    transform: translateY(-1px);
}

/* Loading checkbox special styling */
.loading-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.loading-checkbox input[type="checkbox"] {
    width: auto;
    margin: 0;
}

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

.modal-content {
    background: var(--secondary-black);
    border: 1px solid var(--border-color);
    margin: 5% auto;
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    color: var(--text-muted);
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close:hover {
    color: var(--primary-red);
    background: rgba(220, 38, 38, 0.1);
}

.modal h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

/* Message Box */
.message-box {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-md);
    color: white;
    font-weight: 500;
    font-size: 0.875rem;
    z-index: 2000;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.message-box.success {
    background: var(--success-color);
}

.message-box.error {
    background: var(--danger-color);
}

/* Footer */
footer {
    background: var(--secondary-black);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    text-align: center;
    padding: 1rem;
    font-size: 0.875rem;
    margin-top: auto;
}

/* Responsive Design */
@media (max-width: 1024px) {
    main.content-area {
        padding: 1.5rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    .filter-container {
        padding: 1rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-company-name {
        font-size: 1rem;
    }
    
    .admin-info {
        display: none;
    }
    
    nav.sidebar {
        position: fixed;
        top: 73px;
        left: -280px;
        width: 280px;
        height: calc(100vh - 73px);
        z-index: 200;
        box-shadow: var(--shadow-xl);
        transition: left 0.3s ease;
    }
    
    /* Hide sidebar toggle on mobile */
    nav.sidebar .sidebar-toggle {
        display: none;
    }
    
    /* Reset minimized state on mobile */
    nav.sidebar.minimized {
        width: 280px;
        padding: 1.5rem 0;
    }
    
    nav.sidebar.minimized .sidebar-header {
        padding: 0 1.5rem 2rem;
        margin-bottom: 1.5rem;
    }
    
    nav.sidebar.minimized .sidebar-logo {
        height: 80px;
        width: 80px;
    }
    
    nav.sidebar.minimized button {
        padding: 0.875rem 1.5rem;
        justify-content: flex-start;
        text-align: left;
    }
    
    nav.sidebar.minimized button span {
        display: inline;
    }
    
    nav.sidebar.mobile-open {
        left: 0;
    }
    
    .mobile-overlay {
        display: none;
        position: fixed;
        top: 73px;
        left: 0;
        width: 100%;
        height: calc(100vh - 73px);
        background: rgba(0, 0, 0, 0.5);
        z-index: 199;
        backdrop-filter: blur(2px);
    }
    
    .mobile-overlay.active {
        display: block;
    }
    
    main.content-area {
        padding: 1rem;
    }
    
    section {
        padding: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .filter-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1rem;
    }
    
    .filter-container select,
    #applyFilter,
    .pdf-btn {
        width: 100%;
    }
    
    .modal-content {
        margin: 10% auto;
        padding: 1.5rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .action-btn {
        padding: 0.375rem 0.625rem;
        font-size: 0.6875rem;
        margin-right: 0.25rem;
    }
}

@media (max-width: 640px) {
    .login-box {
        padding: 2rem;
    }
    
    header {
        padding: 1rem;
    }
    
    .header-company-name {
        font-size: 0.875rem;
    }
    
    main.content-area {
        padding: 0.75rem;
    }
    
    section {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .table-container {
        font-size: 0.75rem;
    }
    
    th, td {
        padding: 0.5rem 0.25rem;
        font-size: 0.6875rem;
    }
    
    .modal-content {
        width: 95%;
        padding: 1rem;
    }
    
    input, select, textarea, button[type="submit"] {
        font-size: 0.875rem;
        padding: 0.625rem 0.75rem;
    }
}

/* Additional utility classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus visible for better accessibility */
:focus-visible {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .logout-btn,
    .action-btn,
    .add-btn {
        display: none !important;
    }
    
    main.content-area {
        padding: 0;
    }
    
    section {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* Dashboard Styles - Mobile First Approach */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    width: 100%;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    width: 100%;
}

.summary-card {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 4px solid var(--primary-red);
    transition: var(--transition);
    min-height: 120px;
    width: 100%;
    box-sizing: border-box;
}

.summary-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.summary-card.revenue {
    border-left-color: var(--success-color);
}

.summary-card.hires {
    border-left-color: var(--warning-color);
}

.summary-card.fuel {
    border-left-color: var(--danger-color);
}

.summary-card.profit {
    border-left-color: #3b82f6;
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(220, 38, 38, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-red);
    flex-shrink: 0;
}

.summary-card.revenue .card-icon {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success-color);
}

.summary-card.hires .card-icon {
    background: rgba(234, 88, 12, 0.1);
    color: var(--warning-color);
}

.summary-card.fuel .card-icon {
    background: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
}

.summary-card.profit .card-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.card-content {
    flex: 1;
    min-width: 0;
}

.card-content h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.3;
}

.amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.2;
    word-break: break-word;
}

.subtext {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.vehicle-overview {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    width: 100%;
    box-sizing: border-box;
}

.vehicle-overview h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.125rem;
}

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

.vehicle-card {
    background: var(--secondary-black);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
}

.vehicle-card h4 {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.3;
}

.vehicle-card .count {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.vehicle-performance {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    width: 100%;
    box-sizing: border-box;
}

.vehicle-performance h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.performance-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    width: 100%;
}

.performance-table table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

.performance-table th {
    background: var(--secondary-black);
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.performance-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

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

.date-filter {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.date-filter label {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.date-filter select {
    width: auto;
    min-width: 120px;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--secondary-black);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.date-filter button {
    padding: 0.5rem 1rem;
    background: var(--primary-red);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.date-filter button:hover {
    background: var(--primary-red-dark);
}

/* Enhanced Mobile Responsive Design */

/* Large Tablets and Small Desktops */
@media (max-width: 1200px) {
    .dashboard-grid {
        gap: 1.25rem;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Tablets */
@media (max-width: 1024px) {
    .dashboard-grid {
        gap: 1rem;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.875rem;
    }
    
    .summary-card {
        padding: 1.25rem;
        min-height: 110px;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.875rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 1.25rem;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.625rem;
        font-size: 0.6875rem;
    }
}

/* Small Tablets */
@media (max-width: 768px) {
    .dashboard-grid {
        gap: 0.875rem;
    }
    
    .summary-cards {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    
    .summary-card {
        padding: 1rem;
        min-height: 90px;
        flex-direction: row;
        gap: 0.75rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .card-icon {
        width: 45px;
        height: 45px;
        font-size: 1.375rem;
    }
    
    .amount {
        font-size: 1.375rem;
    }
    
    .card-content h3 {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
    }
    
    .subtext {
        font-size: 0.6875rem;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .vehicle-card {
        padding: 0.875rem;
        min-height: 85px;
    }
    
    .vehicle-card h4 {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
    }
    
    .vehicle-card .count {
        font-size: 1.5rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 1rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 1rem;
        margin-bottom: 0.875rem;
    }
    
    .date-filter {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .date-filter select,
    .date-filter button {
        width: 100%;
        min-width: auto;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.5rem;
        font-size: 0.625rem;
    }
}

/* Large Mobile Phones */
@media (max-width: 640px) {
    .dashboard-grid {
        gap: 0.75rem;
    }
    
    .summary-cards {
        gap: 0.625rem;
    }
    
    .summary-card {
        padding: 0.875rem;
        min-height: 80px;
        gap: 0.625rem;
    }
    
    .card-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .amount {
        font-size: 1.25rem;
    }
    
    .card-content h3 {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }
    
    .subtext {
        font-size: 0.625rem;
    }
    
    .vehicle-cards {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .vehicle-card {
        padding: 0.75rem;
        min-height: 75px;
    }
    
    .vehicle-card h4 {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }
    
    .vehicle-card .count {
        font-size: 1.375rem;
        margin-bottom: 0.125rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.875rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.9375rem;
        margin-bottom: 0.75rem;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.375rem;
        font-size: 0.5625rem;
    }
}

/* Standard Mobile Phones */
@media (max-width: 480px) {
    .dashboard-grid {
        gap: 0.625rem;
    }
    
    .summary-cards {
        gap: 0.5rem;
    }
    
    .summary-card {
        padding: 0.75rem;
        min-height: 75px;
        gap: 0.5rem;
        border-radius: var(--border-radius-md);
    }
    
    .card-icon {
        width: 35px;
        height: 35px;
        font-size: 1.125rem;
    }
    
    .amount {
        font-size: 1.125rem;
        margin-bottom: 0.125rem;
    }
    
    .card-content h3 {
        font-size: 0.6875rem;
        margin-bottom: 0.1875rem;
        line-height: 1.2;
    }
    
    .subtext {
        font-size: 0.5625rem;
        line-height: 1.2;
    }
    
    .vehicle-cards {
        gap: 0.375rem;
    }
    
    .vehicle-card {
        padding: 0.625rem;
        min-height: 65px;
        border-radius: var(--border-radius-sm);
    }
    
    .vehicle-card h4 {
        font-size: 0.6875rem;
        margin-bottom: 0.1875rem;
        line-height: 1.2;
    }
    
    .vehicle-card .count {
        font-size: 1.25rem;
        margin-bottom: 0.0625rem;
    }
    
    .vehicle-card .subtext {
        font-size: 0.5625rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.75rem;
        border-radius: var(--border-radius-md);
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.875rem;
        margin-bottom: 0.625rem;
    }
    
    .performance-table {
        border-radius: var(--border-radius-sm);
    }
    
    .performance-table table {
        min-width: 550px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.3125rem;
        font-size: 0.5rem;
        line-height: 1.2;
    }
    
    .date-filter {
        gap: 0.375rem;
    }
    
    .date-filter label {
        font-size: 0.75rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.4375rem 0.625rem;
        font-size: 0.75rem;
        border-radius: var(--border-radius-sm);
    }
}

/* Small Mobile Phones */
@media (max-width: 375px) {
    .dashboard-grid {
        gap: 0.5rem;
    }
    
    .summary-cards {
        gap: 0.375rem;
    }
    
    .summary-card {
        padding: 0.625rem;
        min-height: 70px;
        gap: 0.375rem;
    }
    
    .card-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .amount {
        font-size: 1rem;
        font-weight: 600;
    }
    
    .card-content h3 {
        font-size: 0.625rem;
        margin-bottom: 0.125rem;
    }
    
    .subtext {
        font-size: 0.5rem;
    }
    
    .vehicle-card {
        padding: 0.5rem;
        min-height: 60px;
    }
    
    .vehicle-card h4 {
        font-size: 0.625rem;
        margin-bottom: 0.125rem;
    }
    
    .vehicle-card .count {
        font-size: 1.125rem;
    }
    
    .vehicle-card .subtext {
        font-size: 0.5rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.625rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.8125rem;
        margin-bottom: 0.5rem;
    }
    
    .performance-table table {
        min-width: 500px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.25rem;
        font-size: 0.4375rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.375rem 0.5rem;
        font-size: 0.6875rem;
    }
}

/* Extra Small Mobile Phones */
@media (max-width: 320px) {
    .dashboard-grid {
        gap: 0.375rem;
    }
    
    .summary-card {
        padding: 0.5rem;
        min-height: 65px;
        gap: 0.25rem;
    }
    
    .card-icon {
        width: 30px;
        height: 30px;
        font-size: 0.875rem;
    }
    
    .amount {
        font-size: 0.9375rem;
    }
    
    .card-content h3 {
        font-size: 0.5625rem;
    }
    
    .vehicle-card {
        padding: 0.4375rem;
        min-height: 55px;
    }
    
    .vehicle-card h4 {
        font-size: 0.5625rem;
    }
    
    .vehicle-card .count {
        font-size: 1rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.5rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.75rem;
        margin-bottom: 0.4375rem;
    }
    
    .performance-table table {
        min-width: 450px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.1875rem;
        font-size: 0.375rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.3125rem 0.4375rem;
        font-size: 0.625rem;
    }
}

/* Utility classes for better mobile experience */
.mobile-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-no-wrap {
    white-space: nowrap;
}

.mobile-break-word {
    word-break: break-word;
    overflow-wrap: break-word;
}

/* Ensure proper touch targets on mobile */
@media (max-width: 768px) {
    .date-filter button,
    .date-filter select {
        min-height: 44px;
        touch-action: manipulation;
    }
}

/* High DPI / Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .card-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    .amount {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Landscape orientation adjustments for mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .summary-card {
        min-height: 75px;
    }
    
    .vehicle-card {
        min-height: 70px;
    }
}

/* Dark mode optimizations for mobile */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    .summary-card {
        border-left-width: 3px;
    }
    
    .card-icon {
        opacity: 0.9;
    }
    
    .performance-table {
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* Dashboard Styles - Mobile First Approach */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.summary-card {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 4px solid var(--primary-red);
    transition: var(--transition);
    min-height: 120px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.summary-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.summary-card.revenue {
    border-left-color: var(--success-color);
}

.summary-card.hires {
    border-left-color: var(--warning-color);
}

.summary-card.fuel {
    border-left-color: var(--danger-color);
}

.summary-card.profit {
    border-left-color: #3b82f6;
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(220, 38, 38, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-red);
    flex-shrink: 0;
}

.summary-card.revenue .card-icon {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success-color);
}

.summary-card.hires .card-icon {
    background: rgba(234, 88, 12, 0.1);
    color: var(--warning-color);
}

.summary-card.fuel .card-icon {
    background: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
}

.summary-card.profit .card-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.card-content {
    flex: 1;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.card-content h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.3;
}

.amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.2;
    word-break: break-all;
    overflow-wrap: break-word;
    hyphens: auto;
    max-width: 100%;
}

.subtext {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.vehicle-overview {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.vehicle-overview h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.125rem;
    word-break: break-word;
    max-width: 100%;
}

.vehicle-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    width: 100%;
    max-width: 100%;
}

.vehicle-card {
    background: var(--secondary-black);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
}

.vehicle-card h4 {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.3;
}

.vehicle-card .count {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.vehicle-performance {
    background: var(--tertiary-black);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.vehicle-performance h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.125rem;
    word-break: break-word;
    max-width: 100%;
}

.performance-table {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
}

.performance-table table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

.performance-table th {
    background: var(--secondary-black);
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.performance-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

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

.date-filter {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.date-filter label {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.date-filter select {
    width: auto;
    min-width: 120px;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--secondary-black);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.date-filter button {
    padding: 0.5rem 1rem;
    background: var(--primary-red);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.date-filter button:hover {
    background: var(--primary-red-dark);
}

/* Enhanced Mobile Responsive Design */

/* Large Tablets and Small Desktops */
@media (max-width: 1200px) {
    .dashboard-grid {
        gap: 1.25rem;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Tablets */
@media (max-width: 1024px) {
    .dashboard-grid {
        gap: 1rem;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.875rem;
    }
    
    .summary-card {
        padding: 1.25rem;
        min-height: 110px;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.875rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 1.25rem;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.625rem;
        font-size: 0.6875rem;
    }
}

/* Small Tablets */
@media (max-width: 768px) {
    .dashboard-grid {
        gap: 0.875rem;
        padding: 0;
        margin: 0;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }
    
    .summary-cards {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 0;
    }
    
    .summary-card {
        padding: 1rem;
        min-height: 90px;
        flex-direction: row;
        gap: 0.75rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: hidden;
        flex-shrink: 0;
        margin: 0;
    }
    
    .card-icon {
        width: 45px;
        height: 45px;
        font-size: 1.375rem;
    }
    
    .amount {
        font-size: 1.375rem;
    }
    
    .card-content h3 {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
    }
    
    .subtext {
        font-size: 0.6875rem;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        width: 100%;
        max-width: 100%;
    }
    
    .vehicle-card {
        padding: 0.875rem;
        min-height: 85px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .vehicle-card h4 {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
        word-break: break-word;
        max-width: 100%;
    }
    
    .vehicle-card .count {
        font-size: 1.5rem;
        word-break: break-word;
        max-width: 100%;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 1rem;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 1rem;
        margin-bottom: 0.875rem;
    }
    
    .date-filter {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    
    .date-filter select,
    .date-filter button {
        width: 100%;
        min-width: auto;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.5rem;
        font-size: 0.625rem;
    }
}

/* Large Mobile Phones */
@media (max-width: 640px) {
    .dashboard-grid {
        gap: 0.75rem;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
        padding: 0;
    }
    
    .summary-cards {
        gap: 0.625rem;
        width: 100%;
        max-width: 100%;
    }
    
    .summary-card {
        padding: 0.875rem;
        min-height: 80px;
        gap: 0.625rem;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .card-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .amount {
        font-size: 1.25rem;
    }
    
    .card-content h3 {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }
    
    .subtext {
        font-size: 0.625rem;
    }
    
    .vehicle-cards {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .vehicle-card {
        padding: 0.75rem;
        min-height: 75px;
    }
    
    .vehicle-card h4 {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }
    
    .vehicle-card .count {
        font-size: 1.375rem;
        margin-bottom: 0.125rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.875rem;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.9375rem;
        margin-bottom: 0.75rem;
        word-break: break-word;
        max-width: 100%;
        overflow: hidden;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.375rem;
        font-size: 0.5625rem;
    }
}

/* Standard Mobile Phones */
@media (max-width: 480px) {
    .dashboard-grid {
        gap: 0.625rem;
    }
    
    .summary-cards {
        gap: 0.5rem;
    }
    
    .summary-card {
        padding: 0.75rem;
        min-height: 75px;
        gap: 0.5rem;
        border-radius: var(--border-radius-md);
    }
    
    .card-icon {
        width: 35px;
        height: 35px;
        font-size: 1.125rem;
    }
    
    .amount {
        font-size: 1.125rem;
        margin-bottom: 0.125rem;
    }
    
    .card-content h3 {
        font-size: 0.6875rem;
        margin-bottom: 0.1875rem;
        line-height: 1.2;
    }
    
    .subtext {
        font-size: 0.5625rem;
        line-height: 1.2;
    }
    
    .vehicle-cards {
        gap: 0.375rem;
    }
    
    .vehicle-card {
        padding: 0.625rem;
        min-height: 65px;
        border-radius: var(--border-radius-sm);
    }
    
    .vehicle-card h4 {
        font-size: 0.6875rem;
        margin-bottom: 0.1875rem;
        line-height: 1.2;
    }
    
    .vehicle-card .count {
        font-size: 1.25rem;
        margin-bottom: 0.0625rem;
    }
    
    .vehicle-card .subtext {
        font-size: 0.5625rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.75rem;
        border-radius: var(--border-radius-md);
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.875rem;
        margin-bottom: 0.625rem;
    }
    
    .performance-table {
        border-radius: var(--border-radius-sm);
    }
    
    .performance-table table {
        min-width: 550px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.3125rem;
        font-size: 0.5rem;
        line-height: 1.2;
    }
    
    .date-filter {
        gap: 0.375rem;
    }
    
    .date-filter label {
        font-size: 0.75rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.4375rem 0.625rem;
        font-size: 0.75rem;
        border-radius: var(--border-radius-sm);
    }
}

/* Small Mobile Phones */
@media (max-width: 375px) {
    .dashboard-grid {
        gap: 0.5rem;
    }
    
    .summary-cards {
        gap: 0.375rem;
    }
    
    .summary-card {
        padding: 0.625rem;
        min-height: 70px;
        gap: 0.375rem;
    }
    
    .card-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .amount {
        font-size: 1rem;
        font-weight: 600;
    }
    
    .card-content h3 {
        font-size: 0.625rem;
        margin-bottom: 0.125rem;
    }
    
    .subtext {
        font-size: 0.5rem;
    }
    
    .vehicle-card {
        padding: 0.5rem;
        min-height: 60px;
    }
    
    .vehicle-card h4 {
        font-size: 0.625rem;
        margin-bottom: 0.125rem;
    }
    
    .vehicle-card .count {
        font-size: 1.125rem;
    }
    
    .vehicle-card .subtext {
        font-size: 0.5rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.625rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.8125rem;
        margin-bottom: 0.5rem;
    }
    
    .performance-table table {
        min-width: 500px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.25rem;
        font-size: 0.4375rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.375rem 0.5rem;
        font-size: 0.6875rem;
    }
}

/* Extra Small Mobile Phones */
@media (max-width: 320px) {
    .dashboard-grid {
        gap: 0.375rem;
    }
    
    .summary-card {
        padding: 0.5rem;
        min-height: 65px;
        gap: 0.25rem;
    }
    
    .card-icon {
        width: 30px;
        height: 30px;
        font-size: 0.875rem;
    }
    
    .amount {
        font-size: 0.9375rem;
    }
    
    .card-content h3 {
        font-size: 0.5625rem;
    }
    
    .vehicle-card {
        padding: 0.4375rem;
        min-height: 55px;
    }
    
    .vehicle-card h4 {
        font-size: 0.5625rem;
    }
    
    .vehicle-card .count {
        font-size: 1rem;
    }
    
    .vehicle-overview,
    .vehicle-performance {
        padding: 0.5rem;
    }
    
    .vehicle-overview h3,
    .vehicle-performance h3 {
        font-size: 0.75rem;
        margin-bottom: 0.4375rem;
    }
    
    .performance-table table {
        min-width: 450px;
    }
    
    .performance-table th,
    .performance-table td {
        padding: 0.1875rem;
        font-size: 0.375rem;
    }
    
    .date-filter select,
    .date-filter button {
        padding: 0.3125rem 0.4375rem;
        font-size: 0.625rem;
    }
}

/* Add viewport constraint utility */
.section-header {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

/* Prevent horizontal overflow */
* {
    box-sizing: border-box;
}

html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

/* Container constraints */
.content-area {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
    box-sizing: border-box;
}

#dashboardSection {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
}

/* Ensure proper touch targets on mobile */
@media (max-width: 768px) {
    .date-filter button,
    .date-filter select {
        min-height: 44px;
        touch-action: manipulation;
    }
}

/* High DPI / Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .card-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    .amount {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Landscape orientation adjustments for mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
    }
    
    .vehicle-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .summary-card {
        min-height: 75px;
    }
    
    .vehicle-card {
        min-height: 70px;
    }
}

/* Dark mode optimizations for mobile */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    .summary-card {
        border-left-width: 3px;
    }
    
    .card-icon {
        opacity: 0.9;
    }
    
    .performance-table {
        border-color: rgba(255, 255, 255, 0.1);
    }
}