* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    height: 100vh;
    background: linear-gradient(to bottom, #0d2a66, #1f4aa8);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    transition: 0.5s;
}

/* Mode clair */
body.light-mode {
    background: linear-gradient(to bottom, #f4f6ff, #dbe4ff);
    color: #111;
}

.container {
    text-align: center;
    position: relative;
    width: 90%;
    max-width: 1000px;
}

/* Rideaux */
.curtain {
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    background: linear-gradient(to bottom, #a00000, #ff1e1e);
    z-index: 1;
}

.curtain.left {
    left: 0;
    border-top-right-radius: 100px;
}

.curtain.right {
    right: 0;
    border-top-left-radius: 100px;
}

/* Logo cercle */
.logo-circle {
    width: 140px;
    height: 140px;
    background: white;
    border-radius: 50%;
    margin: 0 auto 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 6px solid gold;
    z-index: 2;
    position: relative;
}

.logo-text h3 {
    color: #1f4aa8;
    font-size: 16px;
}

.logo-text p {
    font-size: 12px;
    color: #c00;
}

/* Badge Organise */
.organise-badge {
    display: inline-block;
    background: darkred;
    padding: 8px 25px;
    border-radius: 30px;
    margin-bottom: 25px;
    font-weight: bold;
    box-shadow: 0 0 15px rgba(255,0,0,0.6);
}

/* Spotlight */
.spotlight {
    position: absolute;
    top: 180px;
    left: 50%;
    transform: translateX(-50%);
    width: 500px;
    height: 250px;
    background: radial-gradient(circle, rgba(255,255,200,0.8) 0%, rgba(255,255,200,0.2) 40%, transparent 70%);
    z-index: 0;
}

/* Titre */
.title-section h1 {
    font-size: 55px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.title-section h1 span {
    color: #ff2b2b;
}

.title-section h2 {
    letter-spacing: 6px;
    font-weight: 300;
    font-size: 18px;
}

/* Coming Soon */
.coming {
    margin-top: 50px;
    font-size: 45px;
    font-family: cursive;
    color: gold;
    text-shadow: 0 0 10px rgba(255,215,0,0.8);
}

/* Bouton mode */
.mode-toggle {
    margin-top: 40px;
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
    .title-section h1 {
        font-size: 32px;
    }

    .coming {
        font-size: 28px;
    }

    .spotlight {
        width: 300px;
        height: 150px;
    }

    .curtain {
        width: 80px;
    }
}