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

html, body { height: 100%; }

body {
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background:
        linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)),
        radial-gradient(ellipse at top, #3a4a5c 0%, #1b2430 55%, #0d1117 100%);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.page-content { flex: 1; }

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.25rem 2rem;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: block;
    line-height: 0;
    text-decoration: none;
}

.logo svg {
    height: 72px;
    width: auto;
    max-width: 100%;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.45));
}

.logo .ons {
    font-family: "Exo 2", "Arial Black", sans-serif;
    font-style: italic;
    font-weight: 900;
}

.logo .tagline {
    font-family: "Exo 2", "Arial Black", sans-serif;
    font-style: italic;
    font-weight: 800;
    letter-spacing: 1px;
}

.nav-buttons { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.nav-buttons a {
    display: inline-block;
    padding: 0.7rem 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s, transform 0.1s;
}

.nav-buttons a:hover {
    background: #4fb3ff;
    border-color: #4fb3ff;
    color: #0d1117;
}

.nav-buttons a:active { transform: scale(0.97); }

.contact-bar {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

.contact-bar a { color: #4fb3ff; text-decoration: none; }
.contact-bar a:hover { text-decoration: underline; }

.nav-buttons a.active {
    background: rgba(79, 179, 255, 0.25);
    border-color: #4fb3ff;
}

.content-card {
    max-width: 820px;
    margin: 3rem auto;
    padding: 2rem 2.25rem;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    line-height: 1.6;
}

.content-card h1 {
    font-family: "Exo 2", "Arial Black", sans-serif;
    font-style: italic;
    font-weight: 900;
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #4fb3ff;
}

.content-card h2 {
    font-size: 1.2rem;
    margin: 1.5rem 0 0.5rem;
    color: #f7931e;
}

.content-card p { margin-bottom: 0.9rem; color: rgba(255, 255, 255, 0.92); }

.content-card ul { margin: 0 0 0.9rem 1.25rem; }
.content-card li { margin-bottom: 0.35rem; }

@media (max-width: 600px) {
    .content-card { margin: 1.5rem 1rem; padding: 1.5rem; }
}