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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #374151;
    --text-secondary: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

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

/* Header and Navigation */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8rem 0 6rem;
    text-align: center;
}

.home-hero {
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.5)), url('../image5.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 12rem 0 10rem;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

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

.secondary-hero {
    padding: 6rem 0 4rem;
}

.secondary-hero .hero-title {
    font-size: 2.5rem;
}

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

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

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

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

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.625rem 1.5rem;
}

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

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

.section:nth-child(even) {
    background-color: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* What We Do Section */
.what-we-do {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.what-we-do-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
    text-align: center;
}

/* Core Capabilities Section */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.capability-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.capability-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.capability-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Our Philosophy Section */
.philosophy {
    background: var(--text-primary);
    color: white;
}

.philosophy .section-title {
    color: white;
}

.philosophy-content {
    max-width: 900px;
    margin: 0 auto;
}

.philosophy-text {
    font-size: 1.375rem;
    line-height: 1.8;
    text-align: center;
    font-weight: 500;
    font-style: italic;
    opacity: 0.95;
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.product-card {
    background: var(--bg-white);
    padding: 1.5rem 1rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

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

.product-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.product-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* AI Consulting Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateX(5px);
}

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

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

/* Consulting Page Specific Styles */
.mini-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.mini-service-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

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

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

.mini-service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.mini-service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Expertise Grid - Modern Website Style */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.expertise-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
}

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.expertise-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.expertise-icon {
    font-size: 2.25rem;
    background: var(--bg-light);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    transition: background 0.3s ease;
}

.expertise-card:hover .expertise-icon {
    background: rgba(37, 99, 235, 0.1);
}

.expertise-card h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
}

.expertise-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Research Page Custom Styles */
.modern-list {
    margin-top: 2rem;
}

.modern-list li {
    font-size: 1.2rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: padding-left 0.3s ease;
}

.modern-list li:last-child {
    border-bottom: none;
}

.modern-list li:hover {
    padding-left: 2rem;
    color: var(--primary-color);
}

.sharing-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 800px;
}

/* Careers Page Custom Styles */
.careers-layout {
    max-width: 900px;
}

.values-list li::before {
    content: "•";
    margin-right: 15px;
    color: var(--primary-color);
    font-weight: bold;
}

.contact-cta {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 1rem;
    display: inline-block;
}

.cta-text {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.link-underlined {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 2px solid var(--accent-color);
    transition: all 0.3s ease;
}

.link-underlined:hover {
    background: var(--accent-color);
    color: white;
}

/* Research Section */
.research-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
    align-items: start;
}

.research-text h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.research-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.research-list {
    list-style: none;
    padding: 0;
}

.research-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

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

.research-stats {
    display: grid;
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Careers Section */
.careers-description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.positions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.position-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.position-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.location {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* About Section */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    margin-bottom: 3rem;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-section {
    margin: 3rem 0;
}

.founder-note {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    font-size: 1.1rem;
    font-style: italic;
    font-weight: 500;
    color: var(--text-primary);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 2rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-section h4 {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.footer-section p {
    margin-bottom: 0.25rem;
    opacity: 0.8;
    font-size: 0.9rem;
}

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

.footer-section ul li {
    margin-bottom: 0.25rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    font-size: 0.9rem;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.8rem;
}

/* Detailed Product Sections */
.detailed-products-section {
    background-color: var(--bg-white);
}

.section-divider {
    border: 0;
    height: 1px;
    background: var(--border-color);
    margin: 4rem 0;
}

.detailed-product {
    background: var(--bg-white);
    border-radius: 1.5rem;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.detailed-product:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.detailed-product h3 {
    font-size: 2.25rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.product-lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 2.5rem;
    max-width: 900px;
    line-height: 1.5;
}

.product-info-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.info-block h4 {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    display: block;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.info-block p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.info-block.full-width {
    grid-column: 1 / -1;
    background: linear-gradient(to right, var(--bg-light), var(--bg-white));
    padding: 2rem;
    border-radius: 1rem;
    border-left: 4px solid var(--accent-color);
}

.capability-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    list-style: none;
    padding: 0;
}

.capability-list li {
    padding: 0.75rem 1rem;
    background: var(--bg-light);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background 0.2s ease;
}

.capability-list li:hover {
    background: #eef2ff;
}

.capability-list li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1rem;
}

.tech-transfer-box {
    background: #f0f4ff;
    color: var(--text-primary);
    padding: 3rem;
    border-radius: 1.5rem;
    text-align: center;
    border: 1px solid var(--accent-color);
}

.tech-transfer-box h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.tech-transfer-box p {
    font-size: 1.15rem;
    max-width: 850px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Feature Cards for Careers & About */
.feature-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.feature-card {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--text-secondary);
    border-bottom: 4px solid var(--text-secondary);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
}

.feature-card-grid-vertical {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: 900px;
    margin: 3rem auto;
}

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

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

    .hamburger {
        display: flex;
    }

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

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

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

    .research-content {
        grid-template-columns: 1fr;
    }

    .products-grid,
    .services-grid,
    .positions-grid,
    .values-grid,
    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .intro-text,
    .philosophy-text {
        font-size: 1.125rem;
    }

    .product-info-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .expertise-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0 3rem;
    }

    .section {
        padding: 3rem 0;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}