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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: linear-gradient(135deg, #1e5799 0%, #0c4a6e 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 120px;
    width: auto;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

nav a:hover, 
nav a.active {
    color: #14b8a6;
}

.content {
    margin-top: 80px;
    min-height: calc(100vh - 80px - 200px);
}

.hero {
    background: linear-gradient(rgba(30, 87, 153, 0.9), rgba(12, 74, 110, 0.9)), 
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%231e5799" width="1200" height="600"/><path fill="%230c4a6e" opacity="0.3" d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z"/></svg>');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background: #14b8a6;
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    display: inline-block;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(20, 184, 166, 0.3);
}

.cta-button:hover {
    background: #0d9488;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.4);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    font-size: 2.5rem;
    color: #1e5799;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #14b8a6;
    margin: 1rem auto 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s;
    border-top: 4px solid #14b8a6;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.card h3 {
    color: #1e5799;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

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

.card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.card li::before {
    content: '▸';
    color: #14b8a6;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.commitments-list {
    background: #f0f9ff;
    padding: 2rem;
    border-radius: 10px;
    border-left: 5px solid #1e5799;
}

.contact-info {
    background: #f0f9ff;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.contact-info p {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon {
    color: #14b8a6;
    font-weight: bold;
}

.services-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #475569;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.expertise-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 2rem;
    border-radius: 10px;
    border: 2px solid #14b8a6;
    transition: all 0.3s;
}

.expertise-card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(20, 184, 166, 0.2);
}

.expertise-card h3 {
    color: #1e5799;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

/* Notifications */
.notification {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.notification.success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid #10b981;
}

.notification.error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading state for button */
.btn-loading {
    opacity: 0.6;
    cursor: not-allowed;
    position: relative;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

footer {
    background: #0f172a;
    color: white;
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #14b8a6;
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

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

    .logo img {
        height: 80px;
    }
}