/* ===== BACKGROUND ===== */

.webinar-bg {
    background: radial-gradient(circle at center, #0f2027 0%, #000000 80%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* subtle spotlight effect */
.webinar-bg::before {
    content: "";
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,150,255,0.15), transparent 70%);
    filter: blur(80px);
    z-index: 0;
}

/* ===== GLASS CARD ===== */

.glass-card {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    position: relative;
    z-index: 2;
}

/* ===== TEXT ===== */

.title {
    color: #ffffff;
    font-weight: 700;
    font-size: 32px;
}

.subtitle {
    color: #cfcfcf;
    font-size: 15px;
}

/* ===== INPUT ===== */

.custom-input {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
}

.custom-input:focus {
    background: rgba(255,255,255,0.15);
    border-color: #00c6ff;
    box-shadow: none;
    color: #fff;
}

.form-floating label {
    color: #ccc;
}

/* ===== BUTTON ===== */

.btn-join {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    color: #fff;
    padding: 14px;
    font-weight: 600;
    border-radius: 10px;
    transition: 0.3s ease;
    border: none;
}

.btn-join:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,114,255,0.5);
}

/* ===== BANNER ===== */

.banner-wrapper {
    position: relative;
}

.webinar-banner {
    max-height: 600px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
    100% { transform: translateY(0px); }
}

/* ===== MOBILE ===== */

@media (max-width: 991px) {
    .title {
        font-size: 26px;
    }
}

/* ===== WEBINAR PAGE ===== */

.hall-bg {
    background: radial-gradient(circle at center, #111 0%, #000 90%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Spotlight effect */
.hall-bg::before {
    content: "";
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(0, 150, 255, 0.15), transparent 70%);
    filter: blur(100px);
    z-index: 0;
}

.auditorium {
    position: relative;
    z-index: 2;
    padding-top: 80px;
}

.stage-title {
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 1px;
}

.stage-wrapper {
    max-width: 900px;
}

.screen-frame {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 20px;
    overflow: hidden;
    border: 3px solid rgba(0, 150, 255, 0.4);
    box-shadow: 
        0 0 40px rgba(0, 114, 255, 0.4),
        0 0 80px rgba(0, 114, 255, 0.2);
}

.screen-frame iframe {
    width: 100%;
    height: 100%;
    display: block;
    border: none;
}

.screen-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 60px rgba(0,0,0,0.5);
    pointer-events: none;
}
/* Floating buttons improved */

.float-btn {
    position: fixed;
    bottom: 25px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    z-index: 999;
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
    transition: 0.3s ease;
}

.whatsapp {
    left: 25px;
    background: #25D366;
}

.feedback {
    right: 25px;
    background: #ff9900;
}

.float-btn:hover {
    transform: translateY(-5px);
}

/* ===== ANIMATED LIGHT BEAMS ===== */

.light-beams {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.light-beams span {
    position: absolute;
    width: 200px;
    height: 100vh;
    background: linear-gradient(
        to bottom,
        rgba(0,150,255,0.15),
        transparent
    );
    transform: rotate(20deg);
    animation: beamMove 8s linear infinite;
}

.light-beams span:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
}

.light-beams span:nth-child(2) {
    left: 40%;
    animation-delay: 2s;
}

.light-beams span:nth-child(3) {
    left: 70%;
    animation-delay: 4s;
}

@keyframes beamMove {
    0% {
        transform: translateY(-100%) rotate(20deg);
        opacity: 0;
    }
    30% {
        opacity: 1;
    }
    70% {
        opacity: 1;
    }
    100% {
        transform: translateY(100%) rotate(20deg);
        opacity: 0;
    }
}

#particles-js {
    position: fixed;
    inset: 0;
    z-index: 0;
}