:root {
    --bg-color: #0f0f13;
    --panel-bg: rgba(30, 30, 35, 0.6);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #fe2c55;
    /* TikTok Red */
    --accent-hover: #e02548;
    --accent-blue: #25f4ee;
    /* TikTok Blue */
    --glass-border: rgba(255, 255, 255, 0.1);
    --success-color: #00e676;
    --error-color: #ff1744;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(254, 44, 85, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(37, 244, 238, 0.15) 0%, transparent 40%);
}

.container {
    width: 100%;
    max-width: 1000px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.highlight {
    background: linear-gradient(45deg, var(--accent-color), var(--accent-blue));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

main {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 2rem;
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: fit-content;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

input,
select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

input:focus,
select:focus {
    border-color: var(--accent-color);
}

.button-group {
    display: flex;
    gap: 1rem;
}

.btn {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:active {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.primary {
    background: var(--accent-color);
    color: white;
}

.primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-secondary);
    transition: background-color 0.3s ease;
}

.dot.connected {
    background-color: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

.dot.error {
    background-color: var(--error-color);
}

.chat-container {
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.chat-header h2 {
    font-size: 1.5rem;
}

.chat-box {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-right: 0.5rem;
}

/* Scrollbar styling */
.chat-box::-webkit-scrollbar {
    width: 6px;
}

.chat-box::-webkit-scrollbar-track {
    background: transparent;
}

.chat-box::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.message {
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.4;
    animation: fadeIn 0.3s ease;
}

.message.system {
    background: transparent;
    color: var(--text-secondary);
    text-align: center;
    font-style: italic;
}

.message .user {
    font-weight: 700;
    color: var(--accent-blue);
    margin-right: 0.5rem;
}

.message .content {
    color: var(--text-primary);
}

.message.gift {
    border-left: 3px solid var(--accent-color);
    background: linear-gradient(90deg, rgba(254, 44, 85, 0.1) 0%, transparent 100%);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 24px;
    margin-right: 0.5rem;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked+.slider {
    background-color: var(--accent-color);
}

input:focus+.slider {
    box-shadow: 0 0 1px var(--accent-color);
}

input:checked+.slider:before {
    transform: translateX(16px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.controls {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

@media (max-width: 800px) {
    main {
        grid-template-columns: 1fr;
    }

    .chat-container {
        height: 400px;
    }
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    font-size: 0.8rem;
    font-weight: 400;
    margin-bottom: 0;
    cursor: pointer;
}

#showAllVoices {
    width: auto;
    padding: 0;
}