:root {
    --primary: #0056b3;
    --secondary: #00c0ef;
    --accent: #7d3c98;
    --dark: #1a2b4d;
    --light: #f8f9fa;
    --gray: #6c757d;
    --success: #28a745;
    --gold: #ffd700;
    --pharma-accent: #d32f2f;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 15px;
}

h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--pharma-accent), var(--secondary));
    border-radius: 2px;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary);
    color: white;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: 1px;
}

.btn:hover {
    background: #004494;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.btn-secondary:hover {
    background: #00a7d0;
}

.btn-gold {
    background: var(--gold);
    color: #333;
}

.btn-gold:hover {
    background: #e6c200;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
}

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

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links > li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--secondary);
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(211, 47, 47, 0.85) 0%, rgba(0, 192, 239, 0.85) 100%), url('https://images.unsplash.com/photo-1576091160550-112173f31446?ixlib=rb-4.0.3') center/cover;
    color: white;
    padding: 200px 0 120px;
    margin-top: 80px;
    text-align: center;
}

.hero h1 {
    color: white;
    max-width: 900px;
    margin: 0 auto 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.95;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

/* Overview Section */
.overview {
    padding: 100px 0;
    background: var(--light);
}

.overview-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.overview-text {
    flex: 1;
}

.overview-text h2 {
    color: var(--dark);
}

.overview-stats {
    display: flex;
    gap: 50px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat h4 {
    font-size: 2.5rem;
    color: var(--pharma-accent);
    margin-bottom: 10px;
}

.stat p {
    font-size: 1rem;
    margin: 0;
    color: var(--gray);
}

.overview-image {
    flex: 1;
}

.overview-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* Challenges Section */
.challenges {
    padding: 100px 0;
    background: white;
}

.challenges h2 {
    text-align: center;
}

.challenges > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.challenge-card {
    background: var(--light);
    padding: 40px 30px;
    border-radius: 10px;
    transition: all 0.3s ease;
    border-left: 4px solid var(--pharma-accent);
}

.challenge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.challenge-icon {
    font-size: 2.5rem;
    color: var(--pharma-accent);
    margin-bottom: 20px;
}

.challenge-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.challenge-card p {
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
    color: #555;
}

/* Solutions Section */
.solutions {
    padding: 100px 0;
    background: #f5f7fa;
}

.solutions h2 {
    text-align: center;
}

.solutions > .container > p {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.solutions-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.solution-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 25px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: var(--dark);
}

.solution-tab:hover {
    border-color: var(--pharma-accent);
    color: var(--pharma-accent);
}

.solution-tab.active {
    background: var(--pharma-accent);
    color: white;
    border-color: var(--pharma-accent);
}

.solution-tab i {
    font-size: 1.2rem;
}

.solution-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.solution-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-header {
    margin-bottom: 40px;
    text-align: center;
}

.content-header h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--pharma-accent);
}

.content-header p {
    font-size: 1.1rem;
    color: var(--gray);
}

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

.feature {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.feature h4 {
    color: var(--pharma-accent);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.feature h4 i {
    margin-right: 10px;
}

.feature p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    color: #555;
}

/* Therapeutic Areas Section */
.therapeutic-areas {
    padding: 100px 0;
    background: white;
}

.therapeutic-areas h2 {
    text-align: center;
}

.therapeutic-areas > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.area-card {
    background: var(--light);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.area-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    background: white;
}

.area-icon {
    font-size: 3rem;
    color: var(--pharma-accent);
    margin-bottom: 20px;
}

.area-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.area-card p {
    font-size: 0.95rem;
    color: #555;
    margin: 0;
}

/* RWD Section */
.rwd {
    padding: 100px 0;
    background: #f5f7fa;
}

.rwd h2 {
    text-align: center;
}

.rwd > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.rwd-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.rwd-text {
    flex: 1;
}

.rwd-item {
    margin-bottom: 40px;
}

.rwd-item h3 {
    color: var(--pharma-accent);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.rwd-item i {
    margin-right: 10px;
}

.rwd-item p {
    font-size: 1rem;
    color: #555;
    margin: 0;
}

.rwd-image {
    flex: 1;
}

.rwd-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: white;
}

.benefits h2 {
    text-align: center;
}

.benefits > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

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

.benefit-card {
    background: var(--light);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.benefit-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--pharma-accent);
    margin-bottom: 15px;
}

.benefit-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.benefit-card p {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* Integrations Section */
.integrations {
    padding: 100px 0;
    background: #f5f7fa;
}

.integrations h2 {
    text-align: center;
}

.integrations > .container > p {
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 50px;
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.integration-item {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.integration-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.integration-item i {
    font-size: 2.5rem;
    color: var(--pharma-accent);
    margin-bottom: 15px;
}

.integration-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.integration-item p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--pharma-accent) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
}

.cta h2:after {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.3));
}

.cta p {
    font-size: 1.2rem;
    opacity: 0.95;
    margin-bottom: 40px;
}

.cta-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: white;
    margin-bottom: 15px;
}

.footer-section p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 10px;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: var(--secondary);
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 120px 0 80px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    h2 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .overview-content {
        flex-direction: column;
        gap: 40px;
    }

    .overview-stats {
        flex-direction: column;
        gap: 30px;
    }

    .solutions-tabs {
        gap: 10px;
    }

    .solution-tab {
        flex-direction: column;
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .solution-tab span {
        display: none;
    }

    .rwd-content {
        flex-direction: column;
        gap: 40px;
    }

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

    .cta-btns {
        flex-direction: column;
    }

    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }
}