:root {
    --bg-color: #0d0d12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-color: #4f46e5;
    --accent-hover: #6366f1;
    --danger-color: #ef4444;
    --success-color: #10b981;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background: linear-gradient(135deg, #0d0d12 0%, #1a1a2e 100%);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    z-index: 10;
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.logo h1 span {
    color: var(--accent-color);
}

.pulsating-dot {
    width: 12px;
    height: 12px;
    background-color: var(--success-color);
    border-radius: 50%;
    position: relative;
}

.pulsating-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

.room-info {
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 100px;
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

#currentRoom {
    color: var(--text-primary);
    font-weight: 600;
}

/* Network Quality Indicator */
.network-quality {
    background: var(--card-bg);
    padding: 10px 16px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 200px;
}

.quality-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
}

.quality-indicator i {
    font-size: 1rem;
}

#qualityText {
    transition: color 0.3s;
}

/* Quality States */
.network-quality.excellent #qualityText {
    color: #10b981;
}

.network-quality.excellent .quality-indicator i {
    color: #10b981;
}

.network-quality.good #qualityText {
    color: #3b82f6;
}

.network-quality.good .quality-indicator i {
    color: #3b82f6;
}

.network-quality.fair #qualityText {
    color: #f59e0b;
}

.network-quality.fair .quality-indicator i {
    color: #f59e0b;
}

.network-quality.poor #qualityText {
    color: #ef4444;
}

.network-quality.poor .quality-indicator i {
    color: #ef4444;
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.quality-stats {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
}

.quality-stats .stat {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
}

.quality-stats .stat i {
    font-size: 0.7rem;
    opacity: 0.6;
}

.quality-stats .stat span {
    font-weight: 500;
    font-family: 'Courier New', monospace;
}


/* Main Video Container */
.video-container {
    flex: 1;
    position: relative;
    width: 100%;
    margin-top: 20px;
}

/* Remote Video Grid - Conference Mode */
.remote-grid {
    display: flex;
    flex-wrap: wrap;
    align-content: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    height: 100%;
    padding: 10px;
    overflow-y: auto;
    /* Allow scrolling if too many */
}

/* Responsive Tiles logic */
.remote-card {
    position: relative;
    background: #000;
    border-radius: 12px;
    /* Smaller radius for cleaner look */
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    animation: zoomIn 0.3s ease;

    /* Auto-sizing based on count */
    flex: 1 1 400px;
    /* Default: Large */
    max-width: 100%;
}

/* Compact Mode (When many users) */
.remote-grid.crowded .remote-card {
    flex: 1 1 200px;
    /* Force smaller size */
    max-width: 300px;
    border-radius: 8px;
}

.remote-grid.crowded .peer-label {
    font-size: 0.7rem;
    padding: 2px 6px;
    bottom: 5px;
    left: 5px;
}

/* Video Card (Individual Remote Stream) */
.remote-card {
    position: relative;
    background: #000;
    border-radius: 24px;
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    animation: zoomIn 0.4s ease;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.remote-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remote-card .peer-label {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 5px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Floating Local Video */
.local-video-wrapper {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 250px;
    aspect-ratio: 16/9;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.2);
    z-index: 50;
    transition: all 0.3s;
    cursor: pointer;
}

.local-video-wrapper:hover {
    transform: scale(1.05);
    border-color: var(--accent-color);
}

.local-video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-label {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
}

video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
}

.video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    pointer-events: none;
}

.peer-name {
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 14px;
    border-radius: 8px;
    backdrop-filter: blur(8px);
}

.no-video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    gap: 15px;
}

.no-video-placeholder i {
    font-size: 4rem;
    opacity: 0.3;
}

.no-video-placeholder p {
    font-size: 1rem;
}

/* Controls */
.controls-bar {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    z-index: 10;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.control-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    position: relative;
}

.control-btn::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
}

.control-btn:hover::before {
    opacity: 1;
}

.control-btn:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
}

.control-btn:active {
    transform: translateY(-1px);
}

.control-btn.off {
    background: var(--danger-color);
}

.control-btn.off:hover {
    background: #dc2626;
}

.control-btn.hang-up {
    background: var(--danger-color);
    width: 70px;
    border-radius: 20px;
}

.control-btn.hang-up:hover {
    background: #dc2626;
    transform: scale(1.08);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.5);
}

.control-btn.next-btn {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    width: 55px;
}

.control-btn.next-btn:hover {
    background: linear-gradient(135deg, #f97316, #ea580c);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.4);
}


/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(15px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background: linear-gradient(135deg, #1e1e2d 0%, #2a2a3e 100%);
    padding: 50px 45px;
    border-radius: 32px;
    width: 100%;
    max-width: 480px;
    text-align: center;
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.4);
}

.modal h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: 35px;
    font-size: 1.05rem;
    line-height: 1.6;
}

#roomInput {
    width: 100%;
    padding: 18px 24px;
    border-radius: 16px;
    border: 2px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1.1rem;
    margin-bottom: 25px;
    outline: none;
    transition: all 0.3s;
}

#roomInput:focus {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

#joinBtn {
    width: 100%;
    padding: 18px;
    border-radius: 16px;
    border: none;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: white;
    font-weight: 600;
    font-size: 1.15rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
}

#joinBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.5);
}

#joinBtn:active {
    transform: translateY(0);
}

/* Option Buttons */
.option-btn {
    width: 100%;
    padding: 20px;
    border-radius: 16px;
    border: 2px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.option-btn i {
    font-size: 2rem;
    min-width: 40px;
}

.option-btn .btn-content {
    text-align: left;
    flex: 1;
}

.option-btn strong {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.option-btn small {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.option-btn.random-btn {
    border-color: #f59e0b;
}

.option-btn.random-btn:hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(249, 115, 22, 0.2));
    border-color: #f97316;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.3);
}

.option-btn.random-btn i {
    color: #f59e0b;
}

.option-btn.room-btn {
    border-color: var(--accent-color);
}

.option-btn.room-btn:hover {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.2), rgba(99, 102, 241, 0.2));
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
}

.option-btn.room-btn i {
    color: var(--accent-color);
}

/* Room Input Section */
#roomInputSection {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

.back-btn {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.modal-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.modal-footer small {
    color: var(--text-secondary);
    font-size: 0.85rem;
}


/* Mobile Responsiveness */
@media (max-width: 768px) {
    .app-container {
        padding: 10px;
    }

    .video-grid {
        flex-direction: column;
        gap: 10px;
    }

    /* Mobile Local Video Position */
    .local-video-wrapper {
        width: 30vw;
        /* 30% of screen width */
        min-width: 100px;
        max-width: 160px;
        bottom: 120px;
        /* Push above controls */
        right: 15px;
        border-radius: 12px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
        border-width: 1px;
        /* Thinner border on mobile */
    }

    .local-video-wrapper .video-label {
        font-size: 0.6rem;
        padding: 2px 6px;
    }

    /* Floating Controls Bar */
    .controls-bar {
        bottom: 50px;
        /* Moved up from 20px */
        width: 85%;
        max-width: 380px;
        padding: 12px 15px;
        /* Slightly more vertical padding */
        padding-bottom: max(12px, env(safe-area-inset-bottom));
        /* Support for iPhone home bar */
        justify-content: space-evenly;
        background: rgba(20, 20, 30, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.15);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(15px);
        z-index: 100;
        border-radius: 40px;
        /* More rounded capsule look */
    }

    .control-btn {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
        background: rgba(255, 255, 255, 0.15);
    }

    /* Hang Up Button (Red Pill) */
    .control-btn.hang-up {
        width: auto;
        padding: 0 20px;
        background: #ef4444 !important;
        border-radius: 50px;
        box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
    }

    .control-btn.hang-up i {
        font-size: 1.2rem;
    }

    /* Next Button (Orange Pill) */
    .control-btn.next-btn {
        width: auto;
        padding: 0 20px;
        background: linear-gradient(135deg, #f59e0b, #ea580c) !important;
        border-radius: 50px;
        box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    }

    .control-btn.next-btn:active {
        transform: scale(0.95);
    }

    .modal-content {
        padding: 30px 20px;
        margin: 15px;
        border-radius: 24px;
    }

    .modal h2 {
        font-size: 1.8rem;
    }

    .logo h1 {
        font-size: 1.2rem;
    }

    header {
        flex-wrap: wrap;
        gap: 10px;
    }

    .network-quality {
        order: 3;
        width: 100%;
        min-width: auto;
    }

    .quality-stats {
        justify-content: space-around;
    }

    .room-info {
        font-size: 0.8rem;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

/* Video Filters & Effects */
.filter-noir {
    filter: grayscale(100%) contrast(120%);
}

.filter-sepia {
    filter: sepia(60%) contrast(110%);
}

.filter-cyber {
    filter: hue-rotate(190deg) contrast(120%) saturate(150%);
}

.filter-warm {
    filter: sepia(30%) saturate(140%) hue-rotate(-10deg);
}

video {
    transform: scaleX(-1);
    transition: filter 0.3s ease;
}