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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px 30px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

header h1 {
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

header h1 i {
    color: #4cc9f0;
}

.status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff4757;
}

.status-indicator.connected { background: #2ed573; }
.status-indicator.connecting { 
    background: #ffa502;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Main Layout */
main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 1200px) {
    main {
        grid-template-columns: 1fr;
    }
}

/* Panels */
.panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.panel h2 {
    color: #4cc9f0;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
}

/* Connection Panel */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #a9b7c6;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #4cc9f0;
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.2);
}

.button-group {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-warning {
    background: #ffc107;
    color: #333;
}

.btn-info {
    background: #17a2b8;
    color: white;
}

.btn-copy {
    background: #495057;
    color: white;
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-email {
    background: #EA4335;
    color: white;
}

/* Room Info */
.info-box {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.info-box p {
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
}

.info-box strong {
    color: #a9b7c6;
}

.share-section {
    margin-top: 25px;
}

.share-section h4 {
    margin-bottom: 15px;
    color: #a9b7c6;
}

.share-box {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.share-box input {
    flex: 1;
    padding: 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: white;
}

.share-buttons {
    display: flex;
    gap: 10px;
}

/* Controls */
.controls {
    margin-top: 25px;
}

.control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* Video Panel */
.video-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 1100px) {
    .video-container {
        grid-template-columns: 1fr;
    }
}

.video-box {
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.video-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.video-header h3 {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.video-stats {
    display: flex;
    gap: 15px;
    font-size: 0.9rem;
    color: #a9b7c6;
}

video {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.video-status {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 15px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Proctoring Controls */
.proctoring-controls {
    margin-top: 20px;
}

.tool-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Chat Panel */
.chat-panel {
    grid-column: 1 / -1;
    margin-top: 20px;
}

.chat-messages {
    height: 300px;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
}

.system-message {
    color: #4cc9f0;
    padding: 8px;
    border-radius: 6px;
    background: rgba(76, 201, 240, 0.1);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-message {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 8px;
    max-width: 80%;
}

.chat-message.sent {
    background: rgba(76, 201, 240, 0.2);
    margin-left: auto;
}

.chat-message.received {
    background: rgba(255, 255, 255, 0.1);
}

.chat-input {
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex: 1;
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal-content h2 {
    margin-bottom: 20px;
    color: #4cc9f0;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    color: #a9b7c6;
    font-size: 0.9rem;
}

footer .disclaimer {
    margin-top: 10px;
    color: #ffa502;
    font-style: italic;
}

/* Toast */
#toastContainer {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
}

.toast {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 4px solid #4cc9f0;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Utilities */
.hidden {
    display: none !important;
}