:root {
    --primary-color: #0056b3;
    --secondary-color: #003d82;
    --accent-color: #ffa500;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: #ffffff;
    padding-top: 70px;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    color: #fff !important;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat center bottom;
    background-size: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-10px);
}

.stat-card h3 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.9rem;
}

/* Services Section */
.services-section {
    padding: 80px 0;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 86, 179, 0.15);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.service-icon i {
    font-size: 2rem;
    color: #fff;
}

.service-card h4 {
    color: var(--text-dark);
    font-weight: 700;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.service-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.service-link:hover {
    color: var(--secondary-color);
}

/* Feature List */
.feature-list {
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: start;
    margin-bottom: 25px;
}

.feature-item i {
    font-size: 1.5rem;
    margin-right: 15px;
    margin-top: 5px;
}

.feature-item h5 {
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.feature-item p {
    color: var(--text-light);
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 60px 0;
}

/* Tracking Page */
.tracking-section {
    padding: 80px 0;
    min-height: calc(100vh - 200px);
}

.tracking-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 50px;
}

.tracking-input-group {
    max-width: 600px;
    margin: 0 auto;
}

.tracking-input-group input {
    border-radius: 50px 0 0 50px;
    border-right: none;
    padding: 15px 25px;
}

.tracking-input-group button {
    border-radius: 0 50px 50px 0;
    padding: 15px 35px;
}

.shipment-details {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 30px;
    margin-top: 30px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid #dee2e6;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--text-dark);
}

.detail-value {
    color: var(--text-light);
    text-align: right;
}

/* Timeline */
.tracking-timeline {
    position: relative;
    padding: 30px 0;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: -30px;
    width: 2px;
    background: #dee2e6;
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-dot {
    position: absolute;
    left: 7px;
    top: 5px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.2);
}

.timeline-content {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.timeline-title {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.timeline-location {
    color: var(--text-dark);
    font-size: 0.95rem;
}

/* Dashboard */
.dashboard-sidebar {
    background: var(--dark-bg);
    min-height: calc(100vh - 70px);
    padding: 0;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.sidebar-menu li a i {
    margin-right: 12px;
    width: 20px;
}

.dashboard-header {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.stats-card {
    background: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 15px;
}

.stats-icon.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.stats-icon.success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
}

.stats-icon.warning {
    background: linear-gradient(135deg, #ffc107, #e0a800);
}

.stats-icon.info {
    background: linear-gradient(135deg, #17a2b8, #138496);
}

.stats-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 5px;
}

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

/* Data Tables */
.data-table {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.table {
    margin: 0;
}

.table thead {
    background: var(--light-bg);
}

.table thead th {
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid #dee2e6;
    padding: 15px;
}

.table tbody td {
    padding: 15px;
    vertical-align: middle;
}

.table tbody tr {
    transition: background 0.2s ease;
}

.table tbody tr:hover {
    background: var(--light-bg);
}

/* Badges */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* Forms */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 12px 15px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 86, 179, 0.15);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 86, 179, 0.3);
}

/* Footer */
.footer {
    margin-top: auto;
}

/* Auth Pages */
.auth-wrapper {
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    padding: 50px 0;
}

.auth-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 50px;
    max-width: 500px;
    margin: 0 auto;
}

.auth-card h2 {
    margin-bottom: 30px;
    color: var(--text-dark);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }
    
    .stat-card {
        margin-bottom: 15px;
    }
    
    .tracking-card {
        padding: 30px 20px;
    }
    
    .auth-card {
        padding: 30px 20px;
    }
    
    .dashboard-sidebar {
        min-height: auto;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Alert */
.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
}