:root {
            /* Default to Facebook Theme */
            --primary: #1877F2;
            --primary-hover: #166fe5;
            --secondary: #42b72a;
            --gradient: none;
            --bg-light: #f0f2f5;
            --card-bg: #ffffff;
            --text-main: #050505;
            --text-muted: #65676b;
            --border: #dddfe2;
            --shadow: 0 2px 4px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.1);

            --blob-1-color: rgba(24, 119, 242, 0.2);
            --blob-2-color: rgba(66, 183, 42, 0.15);
            --blob-3-color: rgba(255, 255, 255, 0.8);
        }

        /* Instagram Theme Override */
        body.instagram-theme {
            --primary: #E1306C;
            --primary-hover: #c62a5f;
            --secondary: #833AB4;
            --gradient: linear-gradient(45deg, #F77737, #E1306C, #833AB4, #405DE6);
            --bg-light: #fafafa;
            --blob-1-color: rgba(225, 48, 108, 0.2);
            --blob-2-color: rgba(131, 58, 180, 0.15);
            --blob-3-color: rgba(247, 119, 55, 0.2);
            --border: #dbdbdb;
            --text-main: #262626;
            --text-muted: #8e8e8e;
        }

        /* Twitter (X) Theme Override */
        body.twitter-theme {
            --primary: #1DA1F2;
            --primary-hover: #1991db;
            --secondary: #657786;
            --gradient: linear-gradient(45deg, #1DA1F2, #1795e0);
            --bg-light: #f5f8fa;
            --card-bg: #ffffff;
            --text-main: #14171a;
            --text-muted: #657786;
            --border: #e1e8ed;
            --blob-1-color: rgba(29, 161, 242, 0.15);
            --blob-2-color: rgba(101, 119, 134, 0.1);
            --blob-3-color: rgba(230, 236, 240, 0.8);
        }

        /* Pinterest Theme Override */
        body.pinterest-theme {
            --primary: #E60023;
            --primary-hover: #ad001a;
            --secondary: #bd081c;
            --gradient: linear-gradient(45deg, #E60023, #bd081c);
            --bg-light: #ffffff;
            --card-bg: #ffffff;
            --text-main: #111111;
            --text-muted: #767676;
            --border: #e1e1e1;
            --blob-1-color: rgba(230, 0, 35, 0.1);
            --blob-2-color: rgba(189, 8, 28, 0.05);
            --blob-3-color: rgba(0, 0, 0, 0.02);
        }

        /* Snapchat Theme Override */
        body.snapchat-theme {
            --primary: #FFFC00;
            --primary-hover: #e6e300;
            --secondary: #000000;
            --gradient: linear-gradient(45deg, #FFFC00, #ffe600);
            --bg-light: #fefefe;
            --card-bg: #ffffff;
            --text-main: #000000;
            --text-muted: #555555;
            --border: #e0e0e0;
            --blob-1-color: rgba(255, 252, 0, 0.2);
            --blob-2-color: rgba(0, 0, 0, 0.05);
            --blob-3-color: rgba(255, 255, 255, 0.8);
        }

        body.snapchat-theme button.btn {
            color: black;
        }

        /* Threads Theme Override */
        body.threads-theme {
            --primary: #000000;
            --primary-hover: #333333;
            --secondary: #101010;
            --gradient: linear-gradient(45deg, #000000, #333333);
            --bg-light: #fafafa;
            --card-bg: #ffffff;
            --text-main: #000000;
            --text-muted: #777777;
            --border: #dbdbdb;
            --blob-1-color: rgba(0, 0, 0, 0.1);
            --blob-2-color: rgba(50, 50, 50, 0.05);
            --blob-3-color: rgba(255, 255, 255, 0.8);
        }

        /* TikTok Theme Override */
        /* TikTok Theme Override */
        body.tiktok-theme {
            --primary: #FE2C55;
            --primary-hover: #ef2950;
            --primary-rgb: 254, 44, 85;
            --secondary: #25F4EE;
            --gradient: linear-gradient(135deg, #FE2C55 0%, #000000 50%, #25F4EE 100%);
            --bg-light: #FFFFFF;
            --text-main: #000000;
            --blob-1-color: rgba(254, 44, 85, 0.1);
            --blob-2-color: rgba(37, 244, 238, 0.1);
            --blob-3-color: rgba(0, 0, 0, 0.05);
            --border: rgba(0, 0, 0, 0.1);
        }

        /* TeraBox Theme Override */
        body.terabox-theme {
            --primary: #0183C1;
            --primary-hover: #016fa3;
            --secondary: #2f80ed;
            --gradient: linear-gradient(135deg, #0183C1 0%, #30A9DE 100%);
            --bg-light: #f0f8ff;
            --text-main: #061e2a;
            --blob-1-color: rgba(1, 131, 193, 0.15);
            --blob-2-color: rgba(47, 128, 237, 0.1);
            --blob-3-color: rgba(255, 255, 255, 0.8);
            --border: rgba(1, 131, 193, 0.2);
        }

        /* Reddit Theme Override */
        body.reddit-theme {
            --primary: #FF4500;
            --primary-hover: #e03d00;
            --secondary: #FF8717;
            --gradient: linear-gradient(135deg, #FF4500 0%, #FF8717 100%);
            --bg-light: #fff0e6;
            --text-main: #1a1a1b;
            --blob-1-color: rgba(255, 69, 0, 0.15);
            --blob-2-color: rgba(255, 135, 23, 0.1);
            --blob-3-color: rgba(255, 255, 255, 0.8);
            --border: rgba(255, 69, 0, 0.2);
        }



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

        body {
            background-color: var(--bg-light);
            color: var(--text-main);
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
            transition: background-color 0.5s ease;
        }

        /* Animated Background Blobs */
        .blob-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
            pointer-events: none;
        }

        .blob {
            position: absolute;
            border-radius: 50%;
            filter: blur(60px);
            opacity: 0.6;
            animation: float 20s infinite alternate;
            transition: background 0.5s ease;
        }

        .blob-1 {
            top: -10%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: var(--blob-1-color);
        }

        .blob-2 {
            bottom: -10%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: var(--blob-2-color);
            animation-delay: -5s;
        }

        .blob-3 {
            top: 40%;
            left: 40%;
            width: 300px;
            height: 300px;
            background: var(--blob-3-color);
            animation-delay: -10s;
        }

        @keyframes float {
            0% {
                transform: translate(0, 0) scale(1);
            }

            33% {
                transform: translate(30px, -50px) scale(1.1);
            }

            66% {
                transform: translate(-20px, 20px) scale(0.9);
            }

            100% {
                transform: translate(0, 0) scale(1);
            }
        }

        .container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 40px 20px;
            position: relative;
            z-index: 1;
        }

        header {
            text-align: center;
            margin-bottom: 50px;
            animation: fadeInDown 0.8s ease-out;
        }

        header h1 {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            transition: color 0.3s;
        }

        body.instagram-theme header h1 {
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        header p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        .supported-label {
            color: var(--primary);
        }

        /* Snapchat Theme Specifics for Visibility */
        body.snapchat-theme header h1,
        body.snapchat-theme .supported-label {
            color: #FFFC00;
            -webkit-text-stroke: 3.5px black;
            paint-order: stroke fill;
            text-shadow: none;
        }

        /* Fix Button Text Color for Snapchat (Yellow bg needs black text) */
        body.snapchat-theme .btn,
        body.snapchat-theme button:not(#advancedToggle),
        body.snapchat-theme a.btn {
            color: black !important;
            font-weight: 700;
        }

        /* Ensure Icons in buttons are also black */
        body.snapchat-theme .btn svg,
        body.snapchat-theme button svg {
            stroke: black !important;
        }

        /* Footer link hover color for snapchat */
        body.snapchat-theme .footer-link:hover {
            color: #FFFC00;
            text-shadow: 1px 1px 0 #000;
        }

        /* Footer */
        footer {
            text-align: center;
            margin-top: 60px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-link {
            color: var(--text-main);
            text-decoration: none;
            font-weight: 600;
        }

        .footer-link:hover {
            color: var(--primary);
        }

        /* Common Utility Classes */
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

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

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

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

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

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Downloader Styles */
        .main-card {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow);
            margin-bottom: 50px;
            border: 1px solid var(--border);
            animation: fadeInUp 0.8s ease-out 0.2s backwards;
        }

        .input-group {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 16px;
            margin-bottom: 30px;
        }

        input {
            width: 100%;
            background: var(--bg-light);
            border: 2px solid var(--border);
            color: var(--text-main);
            padding: 16px 20px;
            font-size: 1.1rem;
            border-radius: 12px;
            transition: all 0.2s ease;
        }

        input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05);
            background: #fff;
        }

        button.btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 40px;
            font-weight: 600;
            cursor: pointer;
            font-size: 1.1rem;
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        body.instagram-theme button.btn {
            background: var(--gradient);
        }

        button.btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        button.btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .result-box {
            display: none;
            margin-top: 40px;
            animation: fadeIn 0.4s ease-out;
        }

        .result-box.show {
            display: block;
        }

        .loading {
            display: none;
            text-align: center;
            padding: 40px;
        }

        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid #f0f2f5;
            border-radius: 50%;
            border-top-color: var(--primary);
            animation: spin 1s ease-in-out infinite;
            margin: 0 auto 16px;
        }

        .error-msg {
            color: #dc2626;
            background: #fee2e2;
            padding: 12px;
            border-radius: 8px;
            margin-top: 16px;
            text-align: center;
            display: none;
        }

        @media (max-width: 768px) {
            .input-group {
                grid-template-columns: 1fr;
            }

            button.btn {
                width: 100%;
                margin-top: 10px;
                padding: 14px;
            }
        }