/* FOND GLOBAL */
body {
    background: radial-gradient(circle at top, #1B263B 0, #0A0F1F 40%, #000000 100%);
    color: #ffffff;
    font-family: system-ui;
    margin: 0;
}

/* HEADER */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    background: rgba(5, 10, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 229, 255, 0.25);
}

.logo span {
    color: #00E5FF;
}

/* HERO */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    position: relative;
}

.hero-animated-bg {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.4), transparent 60%);
    filter: blur(40px);
    animation: float 12s infinite alternate ease-in-out;
}

@keyframes float {
    0% { transform: translate(-40%, -20%); }
    100% { transform: translate(30%, 20%); }
}

.glow {
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.8),
                 0 0 25px rgba(76, 201, 240, 0.7);
}

/* BOUTON */
.btn-primary {
    padding: 12px 28px;
    border-radius: 999px;
    background: linear-gradient(90deg, #00E5FF, #4CC9F0);
    color: #020617;
    text-decoration: none;
    font-weight: bold;
}

/* NEWS */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background: linear-gradient(145deg, #0D1B2A, #020617);
    border-radius: 16px;
    padding: 18px;
    border: 1px solid rgba(0, 229, 255, 0.25);
}