:root {
    --university-blue: #3b82f6;
    --university-blue-dark: #2563eb;
    --university-blue-light: #60a5fa;
    --professional-gray: #374151;
    --light-gray: #f8fafc;
    --text-secondary: #6b7280;
    --white: #ffffff;
    --shadow-card: 0 4px 12px -4px rgba(59, 130, 246, 0.1);
    --shadow-card-hover: 0 8px 24px -8px rgba(59, 130, 246, 0.2);
    --gradient-primary: linear-gradient(135deg, var(--university-blue), var(--university-blue-light));
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.header {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid #e5e7eb;
    padding: 1.5rem 0;
}

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

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 64px;
    height: 64px;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header-text h1 {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--professional-gray);
    margin-bottom: 0.25rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.125rem;
}

.university {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.hero {
    position: relative;
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
    overflow: hidden;
}

.hero-overlay, .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-background {
    background-image: url('department.jpg'); 
    background-size: cover;
    background-position: center;
    opacity: 1;
    z-index: 1;
}

.hero-overlay {
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.hero-content {
    position: relative; 
    z-index: 3;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.75;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.875rem;
    font-weight: bold;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

.tpo-section {
    padding: 4rem 0;
    background: var(--light-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 1.875rem;
    font-weight: bold;
    color: var(--professional-gray);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 32rem;
    margin: 0 auto;
}

.tpo-card {
    max-width: 64rem;
    margin: 0 auto;
    background: var(--white);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.tpo-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 2rem;
}

.tpo-image {
    flex-shrink: 0;
    align-self: center;
}

.tpo-image img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.tpo-info {
    flex: 1;
    text-align: center;
}

.tpo-header {
    margin-bottom: 1.5rem;
}

.tpo-header h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--professional-gray);
    margin-bottom: 0.5rem;
}

.badge {
    background: var(--university-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.tpo-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.75;
}

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

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.contact-item i {
    color: var(--university-blue);
    width: 16px;
}

.contact-item span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.full-width {
    grid-column: 1 / -1;
}

.team-section {
    padding: 4rem 0;
    background: var(--white);
}

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

.team-card {
    background: var(--white);
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.3s ease;
}

.team-card:hover {
    box-shadow: var(--shadow-card-hover);
}

.team-card img {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.team-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--professional-gray);
    margin-bottom: 0.5rem;
}

.batch-badge {
    background: transparent;
    color: var(--university-blue);
    border: 1px solid var(--university-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-block;
    margin-bottom: 1rem;
}

.contact-section {
    padding: 4rem 0;
    background: var(--light-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.contact-card, .company-card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: var(--shadow-card);
}

.contact-card h3, .company-card h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--professional-gray);
    margin-bottom: 1.5rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-detail i {
    color: var(--university-blue);
    width: 20px;
    margin-top: 0.25rem;
}

.label {
    font-weight: 600;
    color: var(--professional-gray);
    margin-bottom: 0.25rem;
}

.value {
    color: var(--text-secondary);
}

.company-card {
    background: var(--gradient-primary);
    color: var(--white);
}

.company-card h3 {
    color: var(--white);
}

.company-card p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.75;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bullet {
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: 50%;
}

.cta-button {
    background: var(--white);
    color: var(--university-blue);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.9);
}

.footer {
    background: var(--professional-gray);
    color: var(--white);
    text-align: center;
    padding: 1rem 0;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-description {
        font-size: 1.5rem;
    }
    
    .tpo-content {
        flex-direction: row;
        align-items: flex-start;
    }
    
    .tpo-info {
        text-align: left;
    }
    
    .contact-item {
        justify-content: flex-start;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }

}

.team-card .contact-item {
    justify-content: center;
}

a[href^="mailto:"],
a[href^="tel:"] {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

a[href^="mailto:"]:hover,
a[href^="tel:"]:hover {
    color: var(--university-blue);
    text-decoration: underline;
}
a {
    text-decoration: none;
    color: inherit;
}