:root {
            --bg-dark: #050505;
            --bg-panel: rgba(20, 20, 25, 0.6);
            --primary: #6366f1;
            --primary-glow: rgba(99, 102, 241, 0.4);
            --accent: #ec4899;
            --text-main: #ffffff;
            --text-dim: #94a3b8;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --font: 'Inter', sans-serif;
            --ease: cubic-bezier(0.23, 1, 0.32, 1);
        }

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

        body {
            background-color: var(--bg-dark);
            background-image: 
                radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15), transparent 25%), 
                radial-gradient(circle at 85% 30%, rgba(236, 72, 153, 0.15), transparent 25%);
            font-family: var(--font);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }

        body::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
            z-index: -1;
            opacity: 0.4;
        }

        .container {
            width: 100%;
            max-width: 520px;
            padding: 1.5rem;
            position: relative;
            z-index: 2;
        }

        header {
            text-align: center;
            margin-bottom: 3rem;
            animation: slideDown 0.8s var(--ease);
        }

        .logo {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.05em;
            background: linear-gradient(to right, #fff 30%, #94a3b8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 0.5rem;
            display: inline-block;
        }

        .tagline { color: var(--text-dim); font-size: 0.95rem; font-weight: 400; letter-spacing: 0.02em; }

        .glass-card {
            background: var(--bg-panel);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 24px;
            padding: 2.5rem;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            animation: scaleUp 0.6s var(--ease) 0.2s backwards;
            position: relative;
            overflow: hidden;
        }

        .glass-card::after {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle at top right, rgba(255,255,255,0.05), transparent 60%);
            pointer-events: none;
        }

        .input-wrapper {
            position: relative;
            margin-bottom: 1.5rem;
        }

        .url-input {
            width: 100%;
            padding: 1.1rem 1.25rem;
            padding-right: 3rem;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid var(--border);
            border-radius: 12px;
            color: #fff;
            font-size: 0.95rem;
            font-family: monospace;
            transition: all 0.3s ease;
        }

        .url-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
            background: rgba(0, 0, 0, 0.5);
        }

        .url-input::placeholder { color: rgba(148, 163, 184, 0.4); }

        .icon-link {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-dim);
            pointer-events: none;
        }

        .btn-main {
            width: 100%;
            padding: 1rem;
            border: none;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            background-size: 200% 200%;
            color: white;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
            position: relative;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-main:hover {
            transform: translateY(-2px);
            background-position: 100% 0;
            box-shadow: 0 15px 25px -5px rgba(236, 72, 153, 0.4);
        }

        .btn-main:active { transform: scale(0.98); }
        .btn-main:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

        .result-area {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            display: none;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.5s var(--ease);
        }

        .result-area.visible { display: block; opacity: 1; transform: translateY(0); }

        .success-badge {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .output-box {
            display: flex;
            background: #000;
            border-radius: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .output-text {
            flex: 1;
            padding: 0.9rem 1.2rem;
            color: var(--accent);
            font-family: monospace;
            font-size: 0.95rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            background: rgba(0,0,0,0.4);
        }

        .btn-copy {
            background: rgba(255, 255, 255, 0.05);
            border: none;
            border-left: 1px solid var(--border);
            padding: 0 1.5rem;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.9rem;
        }

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

        .toast-container {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 100;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .toast {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            padding: 1rem 1.5rem;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            display: flex;
            align-items: center;
            gap: 0.8rem;
            min-width: 300px;
            transform: translateX(120%);
            animation: slideInLeft 0.4s var(--ease) forwards;
        }

        .toast.error { border-left-color: var(--accent); }
        .toast-text { color: #fff; font-size: 0.9rem; font-weight: 500; }

        .spinner {
            width: 20px; height: 20px;
            border: 2px solid rgba(255,255,255,0.2);
            border-radius: 50%;
            border-top-color: #fff;
            animation: rotate 0.8s linear infinite;
            display: none;
        }

        .btn-main.loading .spinner { display: block; }
        .btn-main.loading span { display: none; }

        @keyframes slideDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
        @keyframes scaleUp { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
        @keyframes slideInLeft { to { transform: translateX(0); } }
        @keyframes fadeOutRight { to { opacity: 0; transform: translateX(100%); } }
        @keyframes rotate { to { transform: rotate(360deg); } }

        @media (max-width: 480px) {
            .container { padding: 1rem; }
            .glass-card { padding: 1.5rem; border-radius: 20px; }
            .output-box { flex-direction: column; }
            .btn-copy { width: 100%; border-left: none; border-top: 1px solid var(--border); padding: 0.8rem; }
            .toast-container { left: 1rem; right: 1rem; bottom: 1rem; }
            .toast { min-width: auto; width: 100%; }
        }