/*!
 * Zenith Aira Consulting Website Styles
 * Optimized CSS with modern browser support
 */

/* Reset and Base Styles - Using specific selectors for better performance */
html, body, div, span, h1, h2, h3, h4, h5, h6, p, a, img, ul, ol, li, nav, section, footer, header, article, aside, table, tr, td, th, button, input, textarea {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    -webkit-overflow-scrolling: touch;
}

/* Smooth scrolling is handled via JavaScript (see script.js) */

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* Navigation */
.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

/* Logo Styles */
.logo-link {
    display: inline-block;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.9;
}

.logo-img {
    display: block;
    height: auto;
    max-width: 100%;
    width: auto;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
}

.logo-nav {
    max-height: clamp(70px, 9vw, 110px);
    width: auto;
}

.logo-hero {
    max-width: min(90vw, 600px);
    width: 100%;
    height: auto;
    margin: 0 auto 3rem;
    display: block;
    background: white;
    padding: 3rem 4rem;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.logo-footer {
    max-width: 200px;
    width: 100%;
    height: auto;
    margin: 0 auto 1rem;
    display: block;
    opacity: 0.9;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-subdescription {
    font-size: 0.95rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
}

.hero-location {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.85);
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Section Styles */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.about-section {
    background: var(--bg-light);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.about-content .lead {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

.service-card ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.service-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Pricing Section */
.pricing-section {
    background: var(--bg-light);
}

.table-wrapper {
    overflow-x: auto;
    margin-top: 2rem;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.pricing-table thead {
    background: var(--primary-color);
    color: white;
}

.pricing-table th,
.pricing-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.pricing-table th {
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-table tbody tr {
    transition: background 0.3s ease;
}

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

.pricing-table tbody tr:last-child td {
    border-bottom: none;
}

.pricing-table td:nth-child(3) {
    font-weight: 600;
    color: var(--primary-color);
}

/* Industries Section */
.industries-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.industry-tag {
    background: var(--bg-white);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 500;
    color: var(--text-dark);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.industry-tag:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Why Choose Section */
.why-choose-section {
    background: var(--bg-light);
}

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

.feature-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.check-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.feature-item p {
    color: var(--text-dark);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* Testimonials Section */
.testimonials-section {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-star {
    color: #f59e0b;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-dark);
    margin-top: 1rem;
}

/* Vision Mission Cards */
.vision-mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.vision-mission-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.vision-mission-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.vision-mission-card h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.vision-mission-card ul {
    list-style: none;
    padding: 0;
}

.vision-mission-card li {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Contact Section */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-location {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-phone {
    margin: 1.5rem 0;
}

.contact-phone p {
    margin: 0.5rem 0;
    color: var(--text-dark);
    font-size: 1.1rem;
}

.contact-phone a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-phone a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-details {
    margin: 1.5rem 0;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.contact-details p {
    margin: 0.75rem 0;
    color: var(--text-dark);
    font-size: 1rem;
    line-height: 1.8;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-details a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-details strong {
    color: var(--text-dark);
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

.social-links a:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.instagram-link {
    color: #e4405f;
}

.instagram-link:hover {
    background: rgba(228, 64, 95, 0.1);
}

.social-link {
    margin-top: 1rem;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.linkedin-link svg {
    width: 24px;
    height: 24px;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.footer-details {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.footer-contact-info {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-contact-info p {
    margin-bottom: 0.75rem;
}

.footer-contact-info a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact-info a:hover {
    color: white;
    text-decoration: underline;
}

.footer-contact-info strong {
    color: white;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .logo-nav {
        max-height: 50px;
    }

    .logo-hero {
        max-width: 450px;
        margin-bottom: 2rem;
        padding: 2rem 2.5rem;
    }

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

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

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

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

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

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

    .vision-mission-grid {
        grid-template-columns: 1fr;
    }

    .pricing-table {
        font-size: 0.875rem;
    }

    .pricing-table th,
    .pricing-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }

    .logo-nav {
        max-height: 40px;
    }

    .logo-hero {
        max-width: 320px;
        margin-bottom: 1.5rem;
        padding: 1.5rem 2rem;
    }

    .logo-footer {
        max-width: 150px;
    }

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

    .section {
        padding: 3rem 0;
    }

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

    .service-card {
        padding: 1.5rem;
    }

    .footer {
        padding: 2rem 0;
    }

    .footer-contact-info {
        font-size: 0.85rem;
    }

    .footer-contact-info p {
        margin-bottom: 0.5rem;
    }
}