/* ===================================
   VEHICLE MANAGEMENT SYSTEM CSS
   Enhanced Modern Design with Animations
   =================================== */

/* ===============================
   RESET AND BASE STYLES
   =============================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===============================
   GLASS MORPHISM EFFECTS
   =============================== */
.glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===============================
   HEADER STYLES
   =============================== */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    animation: headerShimmer 3s infinite;
}

.header h2 {
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 0.5rem;
}

.header p {
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* ===============================
   STATISTICS CARDS
   =============================== */
.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 1.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
    transition: transform 0.6s;
}

.stat-card:hover::before {
    transform: translateX(0%) translateY(0%) rotate(45deg);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.stat-card:nth-child(1) {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card:nth-child(2) {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stat-card:nth-child(3) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stat-card:nth-child(4) {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.stat-card h5 {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card .stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    line-height: 1;
}

.stat-card .stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
    margin-bottom: 1rem;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.2));
}

/* ===============================
   CHART CONTAINERS
   =============================== */
.chart-container {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 40px rgba(31, 38, 135, 0.15);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.8s;
}

.chart-container:hover::before {
    left: 100%;
}

.chart-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(31, 38, 135, 0.2);
}

.chart-container h5 {
    color: #2a5298;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}

.chart-container h5::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* ===============================
   VEHICLE TABLE STYLES
   =============================== */
.vehicle-table {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(31, 38, 135, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.vehicle-table .p-4 {
    padding: 2rem !important;
}

.table {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    border: none;
    font-weight: 700;
    padding: 1.2rem 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    text-align: center;
}

.table thead th:first-child {
    border-top-left-radius: 0;
}

.table thead th:last-child {
    border-top-right-radius: 0;
}

.table tbody td {
    padding: 1.2rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.8);
    text-align: center;
    font-weight: 500;
}

.table tbody tr {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.table tbody tr::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.1), transparent);
    transition: width 0.3s ease;
    z-index: 1;
}

.table tbody tr:hover::before {
    width: 100%;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.08);
    transform: translateX(8px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.15);
}

.table tbody tr:hover td {
    background: transparent;
}

/* ===============================
   STATUS BADGES
   =============================== */
.status-badge {
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    display: inline-block;
    min-width: 120px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.status-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.status-badge:hover::before {
    left: 100%;
}

.status-transit {
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white;
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.status-transit:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.5);
}

.status-loading {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    box-shadow: 0 6px 20px rgba(78, 205, 196, 0.4);
}

.status-loading:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(78, 205, 196, 0.5);
}

.status-maintenance {
    background: linear-gradient(135deg, #ffd93d, #ffed4e);
    color: #333;
    box-shadow: 0 6px 20px rgba(255, 217, 61, 0.4);
}

.status-maintenance:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(255, 217, 61, 0.5);
}

.status-available {
    background: linear-gradient(135deg, #6c5ce7, #74b9ff);
    color: white;
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.4);
}

.status-available:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.5);
}

/* ===============================
   ETA AND DISTANCE INFO
   =============================== */
.eta-info {
    background: linear-gradient(135deg, #ff9a56, #ff6b95);
    color: white;
    padding: 0.8rem 1.2rem;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 700;
    text-align: center;
    box-shadow: 0 4px 15px rgba(255, 154, 86, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    min-width: 100px;
    position: relative;
    overflow: hidden;
}

.eta-info::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent);
    transform: scale(0);
    transition: transform 0.3s;
}

.eta-info:hover::before {
    transform: scale(1);
}

.eta-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 154, 86, 0.5);
}

.eta-info small {
    display: block;
    opacity: 0.9;
    font-size: 0.7rem;
    margin-top: 0.3rem;
}

.distance-info {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 700;
    text-align: center;
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    min-width: 80px;
}

.distance-info:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 18px rgba(78, 205, 196, 0.5);
}

/* ===============================
   PROGRESS BARS
   =============================== */
.progress-custom {
    height: 12px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.1);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.progress-bar-custom {
    border-radius: 10px;
    background: linear-gradient(90deg, #4ecdc4, #44a08d, #667eea);
    background-size: 200% 100%;
    animation: progressGradient 2s ease infinite;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-bar-custom::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: progressShimmer 1.5s ease infinite;
}

/* ===============================
   CUSTOM BUTTONS
   =============================== */
.btn-custom {
    border-radius: 25px;
    padding: 0.6rem 1.8rem;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-size: 0.85rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-custom::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-custom:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary-custom {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5);
    color: white;
}

.btn-success-custom {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
    box-shadow: 0 6px 20px rgba(78, 205, 196, 0.4);
}

.btn-success-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(78, 205, 196, 0.5);
    color: white;
}

.btn-danger-custom {
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white;
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

.btn-danger-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.5);
    color: white;
}

.btn-warning-custom {
    background: linear-gradient(135deg, #ffd93d, #ffed4e);
    color: #333;
    box-shadow: 0 6px 20px rgba(255, 217, 61, 0.4);
}

.btn-warning-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 217, 61, 0.5);
    color: #333;
}

.btn-sm-custom {
    padding: 0.4rem 1.2rem;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.btn-light {
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-light:hover {
    background: white;
    color: #333;
    transform: translateY(-2px);
}

/* ===============================
   MODAL STYLES
   =============================== */
.modal-content {
    border-radius: 25px;
    border: none;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom: none;
    padding: 2rem 2rem 1.5rem;
    position: relative;
}

.modal-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: modalHeaderShimmer 3s ease infinite;
}

.modal-header .modal-title {
    font-weight: 700;
    font-size: 1.3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.modal-header .btn-close {
    filter: invert(1) brightness(2);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.modal-header .btn-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 249, 250, 0.95));
    backdrop-filter: blur(10px);
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.5rem 2rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

/* ===============================
   FORM CONTROLS
   =============================== */
.form-control, .form-select {
    border-radius: 15px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    padding: 0.8rem 1.2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
    transform: translateY(-2px);
    background: white;
}

.form-label {
    font-weight: 700;
    color: #2a5298;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-label i {
    color: #667eea;
    margin-right: 0.5rem;
}

.form-range {
    cursor: pointer;
    height: 8px;
}

.form-range::-webkit-slider-track {
    background: linear-gradient(90deg, #e9ecef, #dee2e6);
    border-radius: 10px;
    height: 8px;
}

.form-range::-webkit-slider-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    height: 24px;
    width: 24px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.form-range::-moz-range-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    height: 24px;
    width: 24px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    border: none;
    transition: all 0.3s ease;
}

.form-range::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* ===============================
   EMPTY STATE
   =============================== */
#emptyState {
    background: linear-gradient(135deg, rgba(108, 117, 125, 0.1), rgba(173, 181, 189, 0.1));
    border-radius: 20px;
    margin: 2rem 0;
    padding: 3rem 2rem;
    border: 2px dashed rgba(108, 117, 125, 0.3);
    transition: all 0.3s ease;
}

#emptyState:hover {
    border-color: rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
}

#emptyState i {
    color: #6c757d;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

#emptyState h5 {
    color: #495057;
    font-weight: 600;
}

#emptyState p {
    color: #6c757d;
}

/* ===============================
   ANIMATIONS AND KEYFRAMES
   =============================== */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes headerShimmer {
    0%, 100% {
        transform: translateX(-100%) skewX(-45deg);
    }
    50% {
        transform: translateX(100%) skewX(-45deg);
    }
}

@keyframes progressGradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes progressShimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

@keyframes modalHeaderShimmer {
    0%, 100% {
        transform: translateX(-100%) skewX(-15deg);
    }
    50% {
        transform: translateX(100%) skewX(-15deg);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }
    40%, 43% {
        transform: translateY(-30px);
    }
    70% {
        transform: translateY(-15px);
    }
    90% {
        transform: translateY(-4px);
    }
}

/* Animation Classes */
.pulse-animation {
    animation: pulse 2s infinite;
}

.slide-in {
    animation: slideInFromLeft 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fade-in {
    animation: fadeIn 0.8s ease;
}

.slide-up {
    animation: slideInFromBottom 0.6s ease;
}

.bounce-animation {
    animation: bounce 2s infinite;
}

/* ===============================
   LOADING STATES
   =============================== */
.spinner-border-custom {
    color: #667eea;
    width: 2rem;
    height: 2rem;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(102, 126, 234, 0.1);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* ===============================
   TOOLTIPS AND POPOVERS
   =============================== */
[data-bs-toggle="tooltip"] {
    cursor: help;
}

.tooltip {
    font-size: 0.8rem;
}

.tooltip-inner {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: 600;
}

/* ===============================
   ALERTS AND NOTIFICATIONS
   =============================== */
.alert {
    border-radius: 15px;
    border: none;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.alert-success {
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.9), rgba(68, 160, 141, 0.9));
    color: white;
}

.alert-danger {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.9), rgba(255, 142, 142, 0.9));
    color: white;
}

.alert-warning {
    background: linear-gradient(135deg, rgba(255, 217, 61, 0.9), rgba(255, 237, 78, 0.9));
    color: #333;
}

.alert-info {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    color: white;
}

/* ===============================
   SCROLLBAR CUSTOMIZATION
   =============================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 10px;
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2, #667eea);
}

/* ===============================
   TABLE RESPONSIVE ENHANCEMENTS
   =============================== */
.table-responsive {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.table-responsive::-webkit-scrollbar {
    height: 6px;
}

.table-responsive::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

.table-responsive::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 3px;
}

/* ===============================
   VEHICLE ID STYLING
   =============================== */
.vehicle-id {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: #2a5298;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    padding: 0.3rem 0.6rem;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    display: inline-block;
}

/* ===============================
   ACTION BUTTONS IN TABLE
   =============================== */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    align-items: center;
}

.action-buttons .btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
    min-width: auto;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.action-buttons .btn:hover {
    transform: translateY(-1px) scale(1.05);
}

/* ===============================
   CARD HOVER EFFECTS
   =============================== */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.hover-glow {
    transition: all 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
}

/* ===============================
   GRADIENT TEXT EFFECTS
   =============================== */
.gradient-text {
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.gradient-text-success {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* ===============================
   FLOATING ACTION BUTTON
   =============================== */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    font-size: 1.5rem;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
    color: white;
}

.fab:active {
    transform: scale(0.95);
}

/* ===============================
   SECTION HEADERS
   =============================== */
.section-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-header h5 {
    color: white;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.section-header p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

/* ===============================
   BADGE ENHANCEMENTS
   =============================== */
.badge-custom {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-gradient-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.badge-gradient-success {
    background: linear-gradient(135deg, #4ecdc4, #44a08d);
    color: white;
}

.badge-gradient-warning {
    background: linear-gradient(135deg, #ffd93d, #ffed4e);
    color: #333;
}

.badge-gradient-danger {
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white;
}

/* ===============================
   RESPONSIVE DESIGN
   =============================== */
@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }
    
    .stat-card .stat-number {
        font-size: 2.5rem;
    }
    
    .chart-container {
        padding: 1.5rem;
    }
}

@media (max-width: 992px) {
    .stat-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
        min-height: 140px;
    }
    
    .stat-card .stat-number {
        font-size: 2.2rem;
    }
    
    .stat-card .stat-icon {
        font-size: 2rem;
    }
    
    .header h2 {
        font-size: 1.5rem;
    }
    
    .table thead th {
        padding: 1rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .table tbody td {
        padding: 1rem 0.5rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }
    
    .header h2 {
        font-size: 1.3rem;
    }
    
    .stat-card {
        padding: 1.2rem;
        min-height: 120px;
    }
    
    .stat-card .stat-number {
        font-size: 2rem;
    }
    
    .stat-card .stat-icon {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .chart-container {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .chart-container h5 {
        font-size: 1rem;
    }
    
    .vehicle-table .p-4 {
        padding: 1rem !important;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .modal-footer {
        padding: 1rem 1.5rem 1.5rem;
    }
    
    .btn-custom {
        padding: 0.5rem 1.2rem;
        font-size: 0.8rem;
    }
    
    .status-badge {
        min-width: 100px;
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }
    
    .eta-info {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
        min-width: 80px;
    }
    
    .distance-info {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
        min-width: 70px;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 0.3rem;
    }
    
    .action-buttons .btn {
        width: 100%;
        min-width: 80px;
    }
    
    .fab {
        width: 50px;
        height: 50px;
        bottom: 1rem;
        right: 1rem;
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .header h2 {
        font-size: 1.1rem;
    }
    
    .header p {
        font-size: 0.8rem;
    }
    
    .stat-card {
        padding: 1rem;
        min-height: 100px;
    }
    
    .stat-card .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-card h5 {
        font-size: 0.8rem;
    }
    
    .chart-container {
        padding: 0.8rem;
    }
    
    .chart-container h5 {
        font-size: 0.9rem;
    }
    
    .table-responsive {
        font-size: 0.75rem;
    }
    
    .table thead th {
        padding: 0.8rem 0.3rem;
        font-size: 0.7rem;
    }
    
    .table tbody td {
        padding: 0.8rem 0.3rem;
    }
    
    .status-badge {
        min-width: 80px;
        font-size: 0.7rem;
        padding: 0.4rem 0.8rem;
    }
    
    .eta-info {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
        min-width: 70px;
    }
    
    .distance-info {
        padding: 0.4rem 0.6rem;
        font-size: 0.7rem;
        min-width: 60px;
    }
    
    .btn-custom {
        padding: 0.4rem 1rem;
        font-size: 0.75rem;
        letter-spacing: 0.3px;
    }
    
    .btn-sm-custom {
        padding: 0.3rem 0.8rem;
        font-size: 0.7rem;
    }
    
    .form-control, .form-select {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
    
    .form-label {
        font-size: 0.8rem;
    }
    
    #emptyState {
        padding: 2rem 1rem;
    }
    
    #emptyState i {
        font-size: 2rem;
    }
    
    #emptyState h5 {
        font-size: 1rem;
    }
    
    #emptyState p {
        font-size: 0.85rem;
    }
}

/* ===============================
   PRINT STYLES
   =============================== */
@media print {
    body {
        background: white !important;
        color: black !important;
    }
    
    .header {
        background: #2a5298 !important;
        -webkit-print-color-adjust: exact;
    }
    
    .stat-card {
        background: #f8f9fa !important;
        color: black !important;
        border: 2px solid #dee2e6 !important;
        -webkit-print-color-adjust: exact;
    }
    
    .chart-container {
        background: white !important;
        border: 1px solid #dee2e6 !important;
    }
    
    .btn-custom {
        display: none;
    }
    
    .fab {
        display: none;
    }
    
    .modal {
        display: none !important;
    }
}

/* ===============================
   DARK MODE SUPPORT
   =============================== */
@media (prefers-color-scheme: dark) {
    .form-control, .form-select {
        background: rgba(255, 255, 255, 0.1);
        color: white;
        border-color: rgba(255, 255, 255, 0.2);
    }
    
    .form-control:focus, .form-select:focus {
        background: rgba(255, 255, 255, 0.2);
    }
    
    .table tbody td {
        color: #333;
    }
    
    .vehicle-table {
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    }
}

/* ===============================
   ACCESSIBILITY IMPROVEMENTS
   =============================== */
.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.high-contrast {
    filter: contrast(1.2);
}

.focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* ===============================
   PERFORMANCE OPTIMIZATIONS
   =============================== */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.gpu-acceleration {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ===============================
   CUSTOM PROPERTIES (CSS Variables)
   =============================== */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #4ecdc4, #44a08d);
    --warning-gradient: linear-gradient(135deg, #ffd93d, #ffed4e);
    --danger-gradient: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    --info-gradient: linear-gradient(135deg, #ff9a56, #ff6b95);
    
    --border-radius-sm: 8px;
    --border-radius-md: 15px;
    --border-radius-lg: 20px;
    --border-radius-xl: 25px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.3);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s ease;
    --transition-bounce: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ===============================
   UTILITY CLASSES
   =============================== */
.text-gradient-primary {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--primary-gradient);
}

.bg-gradient-success {
    background: var(--success-gradient);
}

.bg-gradient-warning {
    background: var(--warning-gradient);
}

.bg-gradient-danger {
    background: var(--danger-gradient);
}

.shadow-custom-sm {
    box-shadow: var(--shadow-sm);
}

.shadow-custom-md {
    box-shadow: var(--shadow-md);
}

.shadow-custom-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-custom-xl {
    box-shadow: var(--shadow-xl);
}

.rounded-custom-sm {
    border-radius: var(--border-radius-sm);
}

.rounded-custom-md {
    border-radius: var(--border-radius-md);
}

.rounded-custom-lg {
    border-radius: var(--border-radius-lg);
}

.rounded-custom-xl {
    border-radius: var(--border-radius-xl);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-normal {
    transition: all var(--transition-normal);
}

.transition-slow {
    transition: all var(--transition-slow);
}

.transition-bounce {
    transition: all var(--transition-bounce);
}