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

:root {
    --primary: #2563eb;
    --primary-glow: #60a5fa;
    --bg: #0b1227;
    --card-bg: rgba(255,255,255,0.08);
    --border: rgba(255,255,255,0.18);
    --text: #ffffff;
    --muted: rgba(255,255,255,0.75);
    font-family: "Inter", Arial, sans-serif;
}

body {
    background: radial-gradient(circle at top, #0f1c3f, #0b1227);
    color: var(--text);
}

.hero {
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    padding: 80px 20px;
}

.container {
    max-width: 1100px;
    margin: auto;
}

.back-link {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 22px;
}

.back-link:hover {
    text-decoration: underline;
}

.hero h1 {
    font-size: 44px;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 18px;
    opacity: 0.9;
}

.section {
    padding: 80px 20px;
}

.cards {
    max-width: 1100px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 36px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 32px 26px;
    text-align: center;
    backdrop-filter: blur(14px);
    position: relative;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 22px;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(96,165,250,0.25),
        transparent
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card:hover::after {
    opacity: 1;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 40px rgba(96,165,250,0.45);
}

.card .icon {
    font-size: 26px;
    margin-bottom: 14px;
    opacity: 0.9;
}

.card h3 {
    font-size: 20px;
    margin-bottom: 6px;
}

.card .muted {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 16px;
}

.card img {
    width: 100%;
    max-width: 220px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.15);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.card:hover img {
    transform: scale(1.07);
    box-shadow: 0 0 25px rgba(96,165,250,0.55);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
}