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

a {
    color: #4fc3f7;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #0a1929 0%, #0d2137 50%, #112a45 100%);
    color: #c8d6e5;
    min-height: 100vh;
    line-height: 1.7;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 60px 24px 80px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 48px;
}

.header .icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.header .logo {
    max-width: 300px;
    height: auto;
    margin-bottom: 12px;
}

.header .subtitle {
    font-size: 14px;
    color: #6b8aab;
}

.header .tagline {
    font-size: 18px;
    color: #6b8aab;
    margin-bottom: 24px;
}

/* Navigation */
.nav-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.nav-links a {
    color: #6b8aab;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-links a:hover {
    color: #4fc3f7;
    border-color: rgba(79, 195, 247, 0.3);
    text-decoration: none;
}

.nav-links a.nav-active {
    color: #4fc3f7;
    border-color: rgba(79, 195, 247, 0.4);
    background: rgba(79, 195, 247, 0.1);
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.card h2 {
    font-size: 18px;
    font-weight: 600;
    color: #4fc3f7;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card h2 .emoji {
    font-size: 22px;
}

.card p {
    margin-bottom: 12px;
    font-size: 15px;
}

.card p:last-child {
    margin-bottom: 0;
}

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

.card ul li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    font-size: 15px;
}

.card ul li::before {
    content: '~';
    position: absolute;
    left: 0;
    color: #4fc3f7;
    font-weight: bold;
}

.highlight {
    background: rgba(79, 195, 247, 0.1);
    border: 1px solid rgba(79, 195, 247, 0.2);
}

/* Features grid */
.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 12px;
}

.feature-item {
    background: rgba(79, 195, 247, 0.05);
    border: 1px solid rgba(79, 195, 247, 0.1);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.feature-item .feat-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.feature-item h3 {
    font-size: 15px;
    color: #ffffff;
    margin-bottom: 4px;
}

.feature-item p {
    font-size: 13px;
    color: #6b8aab;
    margin-bottom: 0;
}

/* Contact button */
.contact-btn {
    display: inline-block;
    background: linear-gradient(135deg, #4fc3f7 0%, #29b6f6 100%);
    color: #0a1929;
    font-weight: 600;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 12px;
    text-decoration: none;
    margin-top: 8px;
}

.contact-btn:hover {
    text-decoration: none;
    opacity: 0.9;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #4a6580;
    font-size: 13px;
}

.footer a {
    color: #4fc3f7;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 40px 16px 60px;
    }
    .card {
        padding: 24px;
    }
    .header h1 {
        font-size: 24px;
    }
    .features {
        grid-template-columns: 1fr;
    }
}