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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #ffffff;
    color: #111827;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #E5E7EB;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.brand-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #111827;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: #374151;
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

.nav-link:hover {
    color: #1e40af;
}

.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    padding: 12px 24px;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    cursor: pointer;
}

.btn-primary {
    background-color: #1e40af;
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(30, 64, 175, 0.3);
}

.hero {
    padding: 140px 0 100px 0;
    text-align: center;
    background: #f9fafb;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: #111827;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4B5563;
    max-width: 650px;
    margin: 0 auto 2.5rem auto;
}

.hero-cta {
    font-size: 1.125rem;
}

.section-heading {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tagline {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #1e40af;
    background-color: #e0f2fe;
    padding: 4px 12px;
    border-radius: 9999px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    color: #111827;
    line-height: 1.2;
}

.principles {
    padding: 80px 0;
    background-color: #ffffff;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.principle-card {
    padding: 2rem;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.principle-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.07);
}

.principle-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.principle-description {
    color: #4B5563;
}

.experience {
    padding: 80px 0;
    background-color: #f9fafb;
}

.experience-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

.experience-description {
    color: #4B5563;
    margin-bottom: 2rem;
}

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

.experience-list li {
    position: relative;
    margin-bottom: 1rem;
    font-weight: 500;
}

.cta {
    padding: 80px 0;
    background-color: #111827;
    color: #ffffff;
    text-align: center;
}

.cta-content {
    max-width: 650px;
}

.cta-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    color: #D1D5DB;
    margin-bottom: 2.5rem;
}

.contact-box {
    background-color: #1F2937;
    padding: 2rem;
    border-radius: 12px;
    display: inline-block;
}

.contact-box span {
    display: block;
    color: #9CA3AF;
    margin-bottom: 0.75rem;
}

.contact-email {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.contact-email:hover {
    border-color: #ffffff;
}

.footer {
    background-color: #ffffff;
    color: #4B5563;
    padding-top: 4rem;
    padding-bottom: 2rem;
    border-top: 1px solid #E5E7EB;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: #111827;
    margin-bottom: 0.5rem;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a, .footer-links span {
    color: #4B5563;
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 1rem;
}

.footer-links a:hover {
    color: #1e40af;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #E5E7EB;
    font-size: 0.875rem;
    color: #6B7280;
}

@media (max-width: 992px) {
    .experience-content {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    .hero-title { font-size: 2.75rem; }
    .section-title { font-size: 2.25rem; }
    .cta-title { font-size: 2.25rem; }
    .principles-grid { grid-template-columns: 1fr; }
    .nav-menu { display: none; }
}

@media (max-width: 480px) {
    .btn { padding: 10px 20px; }
    .hero-title { font-size: 2.25rem; }
    .hero-subtitle { font-size: 1.125rem; }
    .footer-content { grid-template-columns: 1fr; }
}