/* style.css */
/* TWI MEET SYSTEM - Premium Dark Theme & Glassmorphism Design System */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: rgba(20, 28, 45, 0.7);
    --bg-tertiary: rgba(30, 41, 65, 0.95);
    
    --accent-teal: #00f2fe;
    --accent-blue: #4facfe;
    --accent-teal-glow: rgba(0, 242, 254, 0.4);
    --accent-green: #10b981;
    --accent-red: #f43f5e;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(15, 23, 42, 0.6);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 10% 20%, rgba(0, 242, 254, 0.05) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(79, 172, 254, 0.05) 0px, transparent 50%);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Badge "TWI MEET SYSTEM" */
.twi-system-frame {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-teal);
    background: rgba(0, 242, 254, 0.07);
    border: 1px solid rgba(0, 242, 254, 0.3);
    padding: 5px 12px;
    border-radius: 20px;
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
    margin-bottom: 12px;
    animation: pulseGlow 3s infinite ease-in-out;
}

.twi-system-frame span::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--accent-teal);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-teal);
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
        border-color: rgba(0, 242, 254, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 242, 254, 0.25);
        border-color: rgba(0, 242, 254, 0.6);
    }
}

/* LANDING PAGE / PRE-JOIN / LOBBY */
.lobby-container {
    max-width: 1100px;
    margin: auto;
    padding: 15px 20px;
    width: 100%;
}

.lobby-header {
    text-align: center;
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lobby-logo {
    width: 70px;
    height: 70px;
    object-fit: contain;
    margin-bottom: 8px;
    filter: drop-shadow(0 0 8px rgba(0, 242, 254, 0.25));
    transition: var(--transition-smooth);
}

.lobby-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 15px rgba(0, 242, 254, 0.45));
}

.achievement-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: #ffd700; /* Gold color */
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 5px 15px;
    border-radius: 30px;
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.15);
    margin-top: 10px;
    letter-spacing: 0.05em;
    animation: goldGlow 3s infinite ease-in-out;
}

@keyframes goldGlow {
    0%, 100% {
        box-shadow: 0 0 15px rgba(255, 215, 0, 0.15);
        border-color: rgba(255, 215, 0, 0.3);
    }
    50% {
        box-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
        border-color: rgba(255, 215, 0, 0.6);
    }
}

.lobby-header h1 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.lobby-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
    align-items: start;
}

@media (max-width: 900px) {
    .lobby-grid {
        grid-template-columns: 1fr;
    }
}

.lobby-footer {
    text-align: center;
    padding: 15px 20px 5px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 20px;
    width: 100%;
}

/* Preview Camera Card */
.preview-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    box-shadow: var(--glass-shadow);
    padding: 16px;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.video-preview-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #090d16;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.video-preview-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1); /* Mirror view for preview */
}

.preview-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #090d16;
    color: var(--text-muted);
    gap: 12px;
}

.preview-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.3;
}

.preview-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 10px;
}

/* Brightness slider style */
.brightness-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    padding: 12px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.brightness-control-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.brightness-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    outline: none;
}

.brightness-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-teal);
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-teal);
}

/* Control Forms (Create/Join) */
.form-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    box-shadow: var(--glass-shadow);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tabs {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    gap: 16px;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 10px 0;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.tab-btn.active {
    color: var(--text-main);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-blue));
    box-shadow: 0 0 10px var(--accent-teal);
}

.tab-content {
    display: none;
    flex-direction: column;
    gap: 10px;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.input-group input, .input-group select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-main);
    padding: 8px 12px;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

.input-group input:focus, .input-group select:focus {
    border-color: var(--accent-teal);
    box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
    background: rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    border: none;
    border-radius: 10px;
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    padding: 10px 18px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
}

.btn:disabled {
    background: var(--text-muted);
    color: #475569;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.5;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: none;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
    box-shadow: none;
}

.btn-danger {
    background: var(--accent-red);
    color: white;
    box-shadow: 0 4px 15px rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
    box-shadow: 0 6px 20px rgba(244, 63, 94, 0.5);
}

/* Round media button for camera/mic toggle */
.btn-round {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-round:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-round.muted {
    background: var(--accent-red) !important;
    border-color: var(--accent-red) !important;
    color: white;
    box-shadow: 0 0 12px rgba(244, 63, 94, 0.4);
}

/* LOBBY LOADING SCREEN (WAITING APPROVAL) */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 23, 0.95);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 242, 254, 0.1);
    border-top: 3px solid var(--accent-teal);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* MAIN CONFERENCE VIEW */
.meet-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: #070a0f;
    overflow: hidden;
    position: relative;
}

/* Video Grid Area */
.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.video-grid {
    flex: 1;
    display: grid;
    gap: 16px;
    padding: 16px;
    align-content: center;
    justify-content: center;
    align-items: center;
    justify-items: center;
    overflow-y: auto;
    transition: var(--transition-smooth);
}

/* Responsive grid dynamic layouts */
.video-grid[data-count="1"] {
    grid-template-columns: 1fr;
    max-width: 900px;
    margin: 0 auto;
}

.video-grid[data-count="2"] {
    grid-template-columns: 1fr 1fr;
}

.video-grid[data-count="3"],
.video-grid[data-count="4"] {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid[data-count="5"],
.video-grid[data-count="6"] {
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.video-grid[data-count="7"],
.video-grid[data-count="8"],
.video-grid[data-count="9"] {
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
}

/* Fallback default grid for 10+ participants */
.video-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-auto-rows: minmax(180px, 1fr);
}

.video-wrapper {
    position: relative;
    background: #0f1624;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16/9;
    width: 100%;
    max-width: 100%;
    max-height: 100%;
}

.video-wrapper.speaking {
    border-color: var(--accent-teal);
    box-shadow: 0 0 15px var(--accent-teal-glow);
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #090d16;
}

.video-wrapper.sharing-active video {
    object-fit: contain !important;
    background: #000000 !important;
}

.video-wrapper.mirrored video {
    transform: scaleX(-1);
}

/* Video Overlay Info */
.video-overlay-name {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.audio-status-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-status-icon.muted svg {
    color: var(--accent-red);
}

.video-avatar-fallback {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    box-shadow: 0 0 20px rgba(0,242,254,0.3);
    z-index: 1;
}

.video-wrapper.video-muted video {
    display: none;
}

/* TOP INFO BAR (Floating TWI Badge & Room Code) */
.top-info-bar {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: none;
}

.room-code-badge {
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    padding: 6px 14px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
    pointer-events: auto;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.room-code-badge:hover {
    background: rgba(15, 23, 42, 0.95);
    border-color: var(--accent-blue);
}

.room-code-badge svg {
    width: 14px;
    height: 14px;
    color: var(--accent-teal);
}

/* Recording Status Indicator */
.recording-badge {
    background: rgba(244, 63, 94, 0.15);
    border: 1px solid var(--accent-red);
    padding: 6px 14px;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-red);
    display: flex;
    align-items: center;
    gap: 6px;
    animation: alertPulse 1.5s infinite alternate;
}

.recording-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-red);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-red);
}

@keyframes alertPulse {
    from { opacity: 0.7; }
    to { opacity: 1; }
}

/* BOTTOM TOOLBAR */
.bottom-toolbar {
    height: 80px;
    background: rgba(10, 14, 23, 0.9);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.time-display {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding-right: 16px;
}

.toolbar-center {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.control-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.control-btn.active {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    color: var(--text-dark);
    border-color: transparent;
}

.control-btn.muted {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: white;
}

.control-btn.muted:hover {
    background: #e11d48;
}

.control-btn.btn-hangup {
    background: var(--accent-red);
    border-color: var(--accent-red);
    width: 60px;
    border-radius: 30px;
}

.control-btn.btn-hangup:hover {
    background: #e11d48;
}

/* Tooltip on controls */
.control-btn[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 60px;
    background: var(--bg-tertiary);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: var(--transition-smooth);
}

.control-btn[data-tooltip]:hover::before {
    opacity: 1;
    transform: translateY(0);
}

/* SIDE PANEL / DRAWER (Chat & Participants) */
.side-drawer {
    width: 360px;
    height: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    visibility: hidden;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 200;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
}

.side-drawer.open {
    transform: translateX(0);
    visibility: visible;
    position: relative; /* Take up space in desktop view if open */
}

@media (max-width: 800px) {
    .side-drawer.open {
        position: absolute;
        width: 100%;
    }
}

.drawer-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.drawer-header h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
}

.close-drawer-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-drawer-btn:hover {
    color: var(--text-main);
}

/* Chat Panel */
.chat-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100%;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-bubble {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 85%;
}

.chat-bubble.self {
    align-self: flex-end;
}

.chat-bubble-name {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0 4px;
}

.chat-bubble.self .chat-bubble-name {
    text-align: right;
}

.chat-bubble-text {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.4;
    word-break: break-word;
}

.chat-bubble.self .chat-bubble-text {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.2) 0%, rgba(0, 242, 254, 0.2) 100%);
    border-color: rgba(0, 242, 254, 0.2);
}

.chat-input-area {
    padding: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 10px;
}

.chat-input-area input {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-main);
    padding: 10px 14px;
    font-size: 0.9rem;
    outline: none;
}

.chat-input-area input:focus {
    border-color: var(--accent-teal);
}

/* Participants Panel */
.participants-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.participants-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.participant-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.participant-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.participant-avatar {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--accent-teal);
}

.participant-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.participant-badge {
    font-size: 0.7rem;
    background: var(--accent-blue);
    color: var(--text-dark);
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 6px;
}

.kick-btn {
    background: none;
    border: none;
    color: var(--accent-red);
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition-smooth);
    padding: 4px;
    border-radius: 4px;
}

.kick-btn:hover {
    opacity: 1;
    background: rgba(244, 63, 94, 0.1);
}

/* Panel Admin Settings (Floating drawer popup) */
.admin-drawer {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-option-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
}

/* TOAST/ALERT/NOTIFICATION NOTIF */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    padding: 16px 20px;
    border-radius: 12px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    pointer-events: auto;
    animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.toast-success {
    border-left: 4px solid var(--accent-green);
}

.toast.toast-error {
    border-left: 4px solid var(--accent-red);
}

.toast.toast-info {
    border-left: 4px solid var(--accent-blue);
}

@keyframes slideInRight {
    from { transform: translateX(120%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* POPUPS / MODALS (E.g. Admission requests) */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 23, 0.7);
    backdrop-filter: blur(4px);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
    padding: 24px;
    width: 100%;
    max-width: 450px;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.admission-request-box {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admission-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Layout overrides */
.video-grid.layout-spotlight {
    grid-template-columns: 1fr !important;
    grid-template-rows: 1fr !important;
    max-width: 100% !important;
    height: 100% !important;
}

.video-grid.layout-spotlight .video-wrapper {
    display: none !important;
}

.video-grid.layout-spotlight .video-wrapper.spotlighted {
    display: flex !important;
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    aspect-ratio: auto !important;
}

.video-grid.layout-spotlight .video-wrapper.spotlighted video {
    object-fit: cover;
}

.video-grid.layout-spotlight .video-wrapper.spotlighted.sharing-active video {
    object-fit: contain !important;
    background: #000000 !important;
}

.video-grid.layout-sidebar {
    display: flex !important;
    flex-direction: row !important;
    align-items: stretch !important;
    justify-content: space-between !important;
    gap: 16px !important;
    padding: 16px !important;
    height: calc(100% - 32px) !important;
    width: calc(100% - 32px) !important;
    max-width: 100% !important;
    overflow: hidden !important;
}

.video-grid.layout-sidebar .video-wrapper.spotlighted {
    flex: 1 !important;
    height: 100% !important;
    max-width: none !important;
    aspect-ratio: auto !important;
}

.video-grid.layout-sidebar .video-wrapper.spotlighted video {
    object-fit: cover;
}

.video-grid.layout-sidebar .video-wrapper.spotlighted.sharing-active video {
    object-fit: contain !important;
    background: #000000 !important;
}

#sidebar-container {
    width: 240px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    overflow-y: auto !important;
    height: 100% !important;
    flex-shrink: 0 !important;
    padding-right: 4px;
}

#sidebar-container .video-wrapper {
    width: 100% !important;
    height: 135px !important;
    min-height: 135px !important;
    aspect-ratio: 16/9 !important;
    flex-shrink: 0 !important;
}

@media (max-width: 768px) {
    .video-grid.layout-sidebar {
        flex-direction: column !important;
        height: calc(100% - 32px) !important;
    }
    
    .video-grid.layout-sidebar .video-wrapper.spotlighted {
        width: 100% !important;
        height: auto !important;
        aspect-ratio: 16/9 !important;
        flex: none !important;
    }
    
    #sidebar-container {
        width: 100% !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        height: 110px !important;
        padding-bottom: 4px;
        padding-right: 0;
    }
    
    #sidebar-container .video-wrapper {
        width: 160px !important;
        height: 90px !important;
        min-height: 90px !important;
        aspect-ratio: 16/9 !important;
    }
}

/* ==========================================================================
   MOBILE & RESPONSIVE LAYOUT OPTIMIZATIONS (HP MOBILE FRIENDLY)
   ========================================================================== */

/* 1. Lobby & Pre-join Page Responsiveness */
@media (max-width: 768px) {
    .lobby-logo {
        width: 60px !important;
        height: 60px !important;
    }
    .lobby-header h1 {
        font-size: 1.6rem !important;
    }
    .lobby-header p {
        font-size: 0.95rem !important;
    }
    .lobby-container {
        padding: 12px 16px !important;
    }
    .form-card {
        padding: 16px !important;
    }
    .preview-card {
        padding: 12px !important;
    }
}

/* 2. Top Info Bar Clean Mobile Look */
@media (max-width: 600px) {
    .top-info-bar .twi-system-frame {
        display: none !important;
    }
    .top-info-bar {
        top: 12px !important;
        left: 12px !important;
        gap: 8px !important;
    }
    .room-code-badge {
        padding: 5px 10px !important;
        font-size: 0.78rem !important;
    }
    .recording-badge {
        padding: 5px 10px !important;
        font-size: 0.7rem !important;
    }
}

/* 3. Dynamic Video Grid Stacking for Portrait/Narrow Devices */
@media (max-width: 600px) {
    .video-grid[data-count="2"] {
        grid-template-columns: 1fr !important;
        grid-template-rows: 1fr 1fr !important;
    }
    .video-grid[data-count="3"],
    .video-grid[data-count="4"] {
        grid-template-columns: 1fr !important;
        grid-template-rows: repeat(auto-fit, minmax(140px, 1fr)) !important;
    }
    .video-grid[data-count="5"],
    .video-grid[data-count="6"],
    .video-grid[data-count="7"],
    .video-grid[data-count="8"],
    .video-grid[data-count="9"] {
        grid-template-columns: 1fr 1fr !important;
        grid-template-rows: auto !important;
    }
    .video-grid {
        gap: 10px !important;
        padding: 10px !important;
    }
    .video-wrapper {
        border-width: 1.5px !important;
    }
}

/* 4. Bottom Toolbar Horizontal Touch Scrolling (Anti-overflow) */
@media (max-width: 768px) {
    .bottom-toolbar {
        height: 72px !important;
        padding: 0 12px !important;
        display: flex !important;
        flex-direction: row !important;
        justify-content: flex-start !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        gap: 12px !important;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Hide scrollbar on Android/iOS/WebKit & Firefox for custom aesthetics */
    .bottom-toolbar::-webkit-scrollbar {
        display: none !important;
    }
    .bottom-toolbar {
        -ms-overflow-style: none !important;
        scrollbar-width: none !important;
    }
    
    .toolbar-left {
        display: none !important;
    }
    
    .toolbar-center, .toolbar-right {
        display: flex !important;
        flex-direction: row !important;
        flex-shrink: 0 !important;
        gap: 8px !important;
        align-items: center !important;
        height: 100% !important;
    }
    
    .control-btn {
        width: 42px !important;
        height: 42px !important;
        flex-shrink: 0 !important;
    }
    .control-btn svg {
        width: 18px !important;
        height: 18px !important;
    }
    .control-btn.btn-hangup {
        width: 52px !important;
        border-radius: 26px !important;
        flex-shrink: 0 !important;
    }
}