* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #14f195, #00c6ff);
    color: #fff;
    text-align: center;
    min-height: 100vh;
}
header { padding: 2rem; background: rgba(0,0,0,0.2); }
.logo { width: 80px; filter: drop-shadow(0 0 8px #14f195); }
h1 { font-size: 2.8rem; margin: 0.5rem 0; }
h2 { font-size: 1.8rem; margin: 1rem 0; }

.lang-switcher {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}
.lang-btn {
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
    min-width: 40px;
}
.lang-btn.active, .lang-btn:hover {
    background: #fff;
    color: #14f195;
    font-weight: bold;
}

.wallet-connect { padding: 2rem; }
.wallet-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 1rem 0;
}
.btn-wallet {
    padding: 0.8rem 1.2rem;
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
    min-width: 180px;
}
.btn-wallet:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}
.btn-wallet .icon { font-weight: bold; font-size: 1.1rem; }

.adwatch-section {
    max-width: 900px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}
.progress-box { margin-bottom: 2rem; }
.progress-bar {
    height: 20px;
    background: rgba(0,0,0,0.3);
    border-radius: 10px;
    overflow: hidden;
    margin: 1rem 0;
}
#progressFill {
    height: 100%;
    background: linear-gradient(90deg, #14f195, #00c6ff);
    transition: width 0.5s ease;
}
.video-container { background: #000; border-radius: 15px; overflow: hidden; margin: 1.5rem 0; }
iframe { width: 100%; height: 450px; }
.btn-next {
    margin-top: 1rem;
    padding: 1rem 2rem;
    background: #00c6ff;
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    cursor: pointer;
}
.stats { margin-top: 1.5rem; font-size: 1.1rem; }
footer {
    padding: 1rem;
    background: rgba(0,0,0,0.4);
    position: fixed;
    bottom: 0;
    width: 100%;
}