/* css/style.css - Optimized for Performance */
:root {
    --primary: #2a6ebb;
    --primary-dark: #1d4a8a;
    --secondary: #4a90e2;
    --accent: #63b3ed;
    --light: #f8fafc;
    --dark: #1a202c;
    --gray: #718096;
    --gray-light: #e2e8f0;
    --success: #38a169;
    --warning: #d69e2e;
    --danger: #e53e3e;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: #fff;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    font-size: 1.8rem;
}

/* Navigation */
nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

nav a:hover,
nav a.active {
    color: var(--primary);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button.secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.cta-button.secondary:hover {
    background: var(--primary);
    color: white;
}

/* Hero Slider */
.hero-slider {
    position: relative;
    height: 80vh;
    min-height: 500px;
    margin-top: 70px;
    overflow: hidden;
}

.swiper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    position: relative;
    overflow: hidden;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.7);
    transform: scale(1.1);
    transition: transform 0.5s ease;
}

.swiper-slide-active .slide-bg {
    transform: scale(1);
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(26, 32, 44, 0.8) 0%, rgba(26, 32, 44, 0.4) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 700px;
    padding: 0 40px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.slide-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
    max-width: 600px;
}

/* Tracking Box */
.tracking-container {
    position: relative;
    margin-top: -80px;
    z-index: 10;
    padding: 0 20px;
}

.tracking-box {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.tracking-box h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.tracking-box > p {
    color: var(--gray);
    margin-bottom: 30px;
}

.tracking-input {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.tracking-input input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.tracking-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 110, 187, 0.1);
}

.tracking-examples {
    background: #f0f7ff;
    padding: 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary);
    color: var(--gray);
    font-size: 0.9rem;
}

/* Services */
.services {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.section-title p {
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.service-content {
    padding: 30px;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: #f0f7ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 1.8rem;
    color: var(--primary);
}

.service-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.service-content p {
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.7;
}

/* Why Choose Us */
.why-choose {
    padding: 100px 0;
    background: #f8fafc;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.why-card {
    display: flex;
    gap: 20px;
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.why-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.why-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-icon i {
    font-size: 1.5rem;
    color: white;
}

.why-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.why-content p {
    color: var(--gray);
    line-height: 1.6;
}

/* Stats */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Tracking Results */
.tracking-results {
    padding: 80px 0;
    background: white;
    display: none;
}

.tracking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--gray-light);
}

.tracking-id {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
}

.tracking-status {
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.status-pending { background: #fed7d7; color: #c53030; }
.status-in-transit { background: #fefcbf; color: #744210; }
.status-delivered { background: #c6f6d5; color: #22543d; }
.status-cancelled { background: #e2e8f0; color: #2d3748; }
.status-delayed { background: #fed7d7; color: #c53030; }

.tracking-timeline {
    max-width: 800px;
    margin: 0 auto 40px;
    position: relative;
}

.loading-timeline {
    text-align: center;
    padding: 40px 0;
}

.spinner {
    border: 4px solid var(--gray-light);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 25px;
    top: 60px;
    bottom: -30px;
    width: 2px;
    background: var(--gray-light);
}

.timeline-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    z-index: 1;
}

.timeline-icon.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.timeline-icon i {
    font-size: 1.2rem;
}

.timeline-content {
    flex: 1;
    padding-top: 5px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark);
}

.timeline-content p {
    color: var(--gray);
    margin-bottom: 5px;
}

.timeline-time {
    font-size: 0.9rem;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 5px;
}

.package-details {
    background: #f8fafc;
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.detail-item {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary);
}

.detail-item h5 {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-item p {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark);
}

.tracking-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Contact CTA */
.contact-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.contact-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.contact-cta p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.95;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.contact-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.contact-item i {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: block;
}

.contact-item h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.contact-item p {
    margin: 0;
    font-size: 1rem;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: white;
}

.footer-col p {
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 25px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a {
    color: #cbd5e1;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: white;
    transform: translateX(5px);
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #4a5568;
    color: #a0aec0;
    font-size: 0.9rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-content h2 {
    margin-bottom: 25px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group {
    margin-bottom: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 110, 187, 0.1);
}

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

.modal-close {
    display: block;
    width: 100%;
    padding: 12px;
    background: none;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius);
    color: var(--gray);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 20px;
}

.modal-close:hover {
    background: #f8fafc;
    border-color: var(--gray);
}

/* QR Code */
.qr-code-container {
    text-align: center;
    margin: 30px 0;
    padding: 20px;
    background: #f8fafc;
    border-radius: var(--border-radius);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    backdrop-filter: blur(5px);
}

.loading-content {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.spinner-large {
    border: 6px solid var(--gray-light);
    border-top: 6px solid var(--primary);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loading-content p {
    font-weight: 600;
    color: var(--dark);
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .slide-content h1 {
        font-size: 2.8rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .hero-slider {
        height: 70vh;
        min-height: 400px;
        margin-top: 60px;
    }
    
    .slide-content {
        padding: 0 20px;
    }
    
    .slide-content h1 {
        font-size: 2.2rem;
    }
    
    .tracking-input {
        flex-direction: column;
    }
    
    .tracking-input button {
        width: 100%;
    }
    
    .services-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .timeline-item:not(:last-child)::after {
        left: 25px;
        top: 50px;
        bottom: -30px;
    }
    
    .tracking-actions {
        flex-direction: column;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero-slider {
        height: 60vh;
    }
    
    .slide-content h1 {
        font-size: 1.8rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .stat-item h3 {
        font-size: 2.5rem;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .tracking-results {
        display: block !important;
        padding: 0;
    }
    
    .tracking-actions,
    .contact-cta,
    footer {
        display: none !important;
    }
}