/* ==========================================================================
   CSS Reset and Base Styles
   ========================================================================== */

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

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    color: #1a1a1a;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: #555;
    line-height: 1.8;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 2.5rem;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #0066cc, #0052a3);
    margin: 0 auto 16px;
    border-radius: 2px;
}

.section-description {
    font-size: 1.125rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #0066cc, #0052a3);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0052a3, #003d7a);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
    background-color: #f8f9fa;
    color: #0066cc;
    border: 2px solid #0066cc;
}

.btn-secondary:hover {
    background-color: #0066cc;
    color: #fff;
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Header and Navigation
   ========================================================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #0066cc;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0066cc, #0052a3);
    color: #fff;
    border-radius: 8px;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-text {
    color: #1a1a1a;
}

.nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-menu li a {
    color: #333;
    font-weight: 500;
    font-size: 1rem;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-menu li a:hover {
    color: #0066cc;
    background-color: rgba(0, 102, 204, 0.1);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0066cc 0%, #003d7a 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(45deg, rgba(0, 102, 204, 0.1) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(0, 102, 204, 0.1) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(0, 102, 204, 0.1) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(0, 102, 204, 0.1) 75%);
    background-size: 60px 60px;
    background-position: 0 0, 0 30px, 30px -30px, -30px 0px;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 0 24px;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
    padding: 100px 0;
    background-color: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    color: #0066cc;
    margin-bottom: 24px;
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0066cc;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: #666;
    font-weight: 500;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e9ecef, #dee2e6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.placeholder-icon {
    width: 120px;
    height: 120px;
    stroke-width: 1.5;
    color: #adb5bd;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #fff 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background: #fff;
    padding: 40px 32px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-top: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-top-color: #0066cc;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #0066cc, #0052a3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 2;
    color: #fff;
}

.service-title {
    font-size: 1.5rem;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.service-description {
    font-size: 1rem;
    color: #666;
    margin-bottom: 24px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 8px 0 8px 28px;
    color: #555;
    position: relative;
    font-size: 0.95rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #0066cc;
    font-weight: 700;
    font-size: 1.1rem;
}

/* ==========================================================================
   Why Choose Us Section
   ========================================================================== */

.why-choose {
    padding: 100px 0;
    background-color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.feature-item {
    text-align: center;
    padding: 32px 24px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.feature-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #0066cc, #0052a3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.feature-icon svg {
    width: 36px;
    height: 36px;
    stroke-width: 2;
    color: #fff;
}

.feature-item h4 {
    font-size: 1.25rem;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.feature-item p {
    font-size: 0.95rem;
    color: #666;
    margin: 0;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #0066cc, #0052a3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
    color: #fff;
}

.contact-details h4 {
    font-size: 1.125rem;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.contact-details p {
    font-size: 0.95rem;
    color: #666;
    margin: 0;
    line-height: 1.6;
}

.contact-form-container {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    font-size: 1rem;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background-color: #1a1a1a;
    color: #fff;
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
}

.footer-logo .logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.footer-description {
    color: #adb5bd;
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #0066cc;
    transform: translateY(-3px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li a {
    color: #adb5bd;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.footer-links li a:hover {
    color: #0066cc;
    padding-left: 8px;
}

.newsletter-text {
    color: #adb5bd;
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.newsletter-form input {
    padding: 12px 16px;
    border: none;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 0.95rem;
}

.newsletter-form input::placeholder {
    color: #adb5bd;
}

.newsletter-form input:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.15);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #adb5bd;
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 16px;
    align-items: center;
}

.footer-legal a {
    color: #adb5bd;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #0066cc;
}

/* ==========================================================================
   Responsive Design - Tablet
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .about-content {
        gap: 48px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* ==========================================================================
   Responsive Design - Mobile
   ========================================================================== */

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-menu {
        display: none;
    }

    .hero {
        height: auto;
        min-height: 500px;
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .image-placeholder {
        height: 300px;
    }

    .placeholder-icon {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }

    .service-card {
        padding: 32px 24px;
    }

    .contact-form-container {
        padding: 24px;
    }
}