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

body {
    background: #0d1117;
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.container {
    max-width: 1040px;
    width: 100%;
    margin: 0 auto;
}

.nav-bg {
    width: 100%;
    background: rgba(3, 9, 23, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 16px 0;
}

.navbar {
    padding: 0;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: #22d3ee !important;
    letter-spacing: 1px;
}

.nav-center {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: #cbd5e1 !important;
    font-size: 15px;
    padding: 0.25rem 0.5rem;
}

.page-background {
    width: 100%;
    background-color: #0b1220;
    padding: 40px 16px 24px;
    display: flex;
    justify-content: center;
}

.content-panel {
    width: 100%;
    background-color: #111827;
    border: 1px solid #1f2937;
    border-radius: 18px;
    padding: 36px;
}

.page-title {
    font-size: 2.4rem;
    color: #22d3ee;
    text-align: center;
    margin-bottom: 16px;
}

.divider {
    width: 120px;
    height: 3px;
    margin: 0 auto 32px;
    background-color: #22d3ee;
    border: none;
    border-radius: 2px;
}

.section-block {
    background: #0f172a;
    border: 1px solid #1f2937;
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 24px;
}

.section-heading {
    color: #fbbf24;
    font-size: 1.5rem;
    margin-bottom: 14px;
    text-align: center;
}

.section-text {
    color: #cbd5e1;
    margin-bottom: 18px;
    text-align: center;
}

.section-list {
    list-style-type: disc;
    padding-left: 1.4rem;
    color: #d1d5db;
}

.section-list li {
    margin-bottom: 0.85rem;
    line-height: 1.7;
}

.source-block {
    margin-top: 22px;
}

.source-block h3 {
    color: #38bdf8;
    font-size: 1.2rem;
    margin-bottom: 10px;
    text-align: center;
}

.carousel-wrapper {
    margin-top: 16px;
}

.carousel-img {
    width: 100%;
    max-height: 260px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid #1f2937;
}

.button-row {
    text-align: center;
    margin-top: 24px;
}

.btn-back {
    background-color: #2563eb;
    border-color: #2563eb;
    color: #ffffff;
    padding: 0.85rem 1.6rem;
    border-radius: 999px;
    font-size: 1rem;
}

.footer-bar {
    width: 100%;
    background-color: #0b1220;
    color: #94a3b8;
    text-align: center;
    padding: 16px 0;
    margin-top: 24px;
    border-top: 1px solid #1f2937;
}

@media (max-width: 768px) {
    .content-panel {
        padding: 28px;
    }

    .page-title {
        font-size: 2rem;
    }

    .section-heading {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .page-background {
        padding: 28px 12px 20px;
    }

    .content-panel {
        padding: 22px;
    }

    .page-title {
        font-size: 1.7rem;
    }

    .divider {
        width: 90px;
    }

    .section-block {
        padding: 18px;
    }
}
.nav-bg {
    width: 100%;
    background: rgba(3, 9, 23, 0.75);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background 0.3s ease;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    color: #22d3ee !important;
    letter-spacing: 1px;
    transition: color 0.2s ease;
}

.nav-center li a {
    color: #cbd5e1 !important;
    font-size: 15px;
    padding: 0.25rem 0.5rem;
    transition: color 0.2s ease, transform 0.2s ease;
}

.nav-center li a:hover {
    color: #7dd3fc !important;
    transform: translateY(-1px);
}