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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --background-color: #ffffff;
    --surface-color: #f8fafc;
    --text-color: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-color: #f1f5f9;
    --text-light: #94a3b8;
    --border-color: #334155;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand .logo {
    height: 40px;
    max-width: 150px;
    width: auto;
    transition: opacity 0.3s ease;
}

.nav-brand .logo:hover {
    opacity: 0.8;
}

.nav-brand a {
    text-decoration: none;
    color: inherit;
    display: inline-block;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--surface-color) 0%, var(--background-color) 100%);
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Services */
.services-preview {
    padding: 4rem 0;
}

.services-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    font-weight: bold;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-light);
}

/* Trusted By */
.trusted-by {
    padding: 4rem 0;
    background-color: var(--surface-color);
    text-align: center;
}

.trusted-by h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: bold;
}

.trusted-brands {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.brand {
    background-color: var(--background-color);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.trusted-text {
    font-style: italic;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Stats */
.stats {
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-weight: 500;
}

/* Page Header */
.page-header {
    padding: 3rem 0;
    background-color: var(--surface-color);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Services Detail */
.services-detail {
    padding: 4rem 0;
}

.service-section {
    margin-bottom: 3rem;
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.service-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-content ul {
    list-style: none;
    padding-left: 0;
}

.service-content li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

.service-content li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.service-subsection {
    margin-bottom: 1.5rem;
}

.service-subsection h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

/* Products */
.products-detail {
    padding: 4rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: var(--surface-color);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.product-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.product-card h2 {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
    color: var(--primary-color);
}

.product-tagline {
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.product-summary {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.product-features {
    list-style: none;
    padding-left: 0;
    margin-bottom: 2rem;
}

.product-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

.product-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.product-card .btn {
    align-self: flex-start;
    margin-top: auto;
}

/* Case Studies */
.case-studies {
    padding: 4rem 0;
}

.case-study {
    background-color: var(--surface-color);
    margin-bottom: 3rem;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.case-study-header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.case-study-header h2 {
    font-size: 1.8rem;
    margin: 0;
}

.case-study-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.case-study-content {
    padding: 2rem;
}

.case-study-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
    color: var(--primary-color);
}

.case-study-content h3:first-child {
    margin-top: 0;
}

.result-highlight {
    background-color: var(--accent-color);
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
    text-align: center;
    font-size: 1.1rem;
}

/* About Page */
.about-content {
    padding: 4rem 0;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about-text h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    color: var(--accent-color);
}

.journey-timeline {
    margin: 2rem 0;
}

.timeline-item {
    border-left: 3px solid var(--primary-color);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
}

.timeline-item:before {
    content: "";
    width: 12px;
    height: 12px;
    background-color: var(--primary-color);
    border-radius: 50%;
    position: absolute;
    left: -7.5px;
    top: 0.5rem;
}

.timeline-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.expertise-list {
    list-style: none;
    padding-left: 0;
}

.expertise-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.expertise-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.why-choose {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.reason {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
}

.reason h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Contact Page */
.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.contact-methods {
    margin: 2rem 0;
}

.contact-method {
    margin-bottom: 2rem;
}

.contact-method h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.contact-method a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-method a:hover {
    text-decoration: underline;
}

.free-audit {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-top: 2rem;
}

.free-audit h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-form {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
}

.form-message.success {
    background-color: #dcfce7;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.form-message.error {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

/* CTA Section */
.cta-section {
    padding: 4rem 0;
    background-color: var(--surface-color);
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.cta-section p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Sticky CTA */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    z-index: 90;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.sticky-cta .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.sticky-cta .btn {
    background-color: white;
    color: var(--primary-color);
}

.sticky-cta .btn:hover {
    background-color: var(--surface-color);
}

/* Footer */
.footer {
    background-color: var(--surface-color);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-bottom: 80px;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }

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

    .trusted-brands {
        gap: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .case-study-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .why-choose {
        grid-template-columns: 1fr;
    }
    
    .sticky-cta .container {
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}