@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;500;700&display=swap');

        :root {
            /* Varsayılan (Koyu Arka Plan) Teması */
            --text-main: rgba(255, 255, 255, 0.95);
            --text-muted: rgba(255, 255, 255, 0.8);
            --card-bg: rgba(255, 255, 255, 0.1);
            --card-border: rgba(255, 255, 255, 0.2);
            --card-shadow: rgba(0, 0, 0, 0.2);
            --input-bg: rgba(0, 0, 0, 0.2);
            --input-text: #fff;
            --input-border: rgba(255, 255, 255, 0.1);
            --copy-btn-bg: rgba(255, 255, 255, 0.1);
            --copy-btn-color: rgba(255, 255, 255, 0.8);
            --copy-btn-hover-bg: rgba(255, 255, 255, 0.3);
            --color-btn-bg: rgba(255, 255, 255, 0.2);
            --color-btn-text: #fff;
            --share-btn-bg: rgba(0, 0, 0, 0.2);
            --share-btn-text: #fff;
            --blob-color: rgba(255, 255, 255, 0.15);
            --social-color: rgba(255, 255, 255, 0.7);
            --social-hover: #fff;
        }

        /* Açık Renk Arka Plan Teması */
        body.light-theme {
            --text-main: #2d3436;
            --text-muted: #636e72;
            --card-bg: rgba(255, 255, 255, 0.45);
            --card-border: rgba(255, 255, 255, 0.8);
            --card-shadow: rgba(0, 0, 0, 0.1);
            --input-bg: rgba(255, 255, 255, 0.6);
            --input-text: #2d3436;
            --input-border: rgba(0, 0, 0, 0.05);
            --copy-btn-bg: rgba(0, 0, 0, 0.05);
            --copy-btn-color: #2d3436;
            --copy-btn-hover-bg: rgba(0, 0, 0, 0.1);
            --color-btn-bg: #2d3436;
            --color-btn-text: #fff;
            --share-btn-bg: rgba(255, 255, 255, 0.8);
            --share-btn-text: #2d3436;
            --blob-color: rgba(0, 0, 0, 0.08);
            --social-color: #636e72;
            --social-hover: #2d3436;
        }

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

        body {
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #ff9a9e;
            transition: background 0.5s ease;
            overflow: hidden;
            position: relative;
        }

        .blob {
            position: absolute;
            background: var(--blob-color);
            border-radius: 50%;
            pointer-events: none;
            transition: background 0.5s ease;
        }

        .blob-1 {
            top: 10%;
            left: 10%;
            width: 300px;
            height: 300px;
            animation: moveBlob1 20s infinite alternate;
        }

        .blob-2 {
            bottom: 10%;
            right: 10%;
            width: 250px;
            height: 250px;
            animation: moveBlob2 15s infinite alternate;
        }

        @keyframes moveBlob1 {
            from { transform: translate(0, 0) scale(1); }
            to { transform: translate(50px, 50px) scale(1.1); }
        }

        @keyframes moveBlob2 {
            from { transform: translate(0, 0) scale(1); }
            to { transform: translate(-50px, -30px) scale(0.9); }
        }

        .container {
            padding: 20px;
            width: 100%;
            display: flex;
            justify-content: center;
            position: relative;
            z-index: 10;
        }

        .card {
            background: var(--card-bg);
            box-shadow: 0 8px 32px 0 var(--card-shadow);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 20px;
            border: 1px solid var(--card-border);
            border-top: 1px solid rgba(255, 255, 255, 0.4);
            border-left: 1px solid rgba(255, 255, 255, 0.4);
            padding: 2.5rem;
            width: 100%;
            max-width: 400px;
            text-align: center;
            transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            animation: fadeIn 0.8s ease-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .title {
            color: var(--text-main);
            margin-bottom: 2rem;
            font-weight: 700;
            font-size: 1.8rem;
            letter-spacing: 1px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: color 0.3s ease;
        }

        .color-preview-container {
            position: relative;
            width: 120px;
            height: 120px;
            margin: 0 auto 2rem;
        }

        .color-preview {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #000;
            border: 4px solid var(--card-border);
            box-shadow: 0 8px 32px rgba(0,0,0,0.15);
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.3s ease;
            cursor: pointer;
        }

        .color-preview:hover {
            transform: scale(1.05);
        }

        .input-group {
            margin-bottom: 1.2rem;
            text-align: left;
        }

        .input-group label {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            font-weight: 600;
            margin-left: 4px;
            letter-spacing: 0.5px;
            transition: color 0.3s ease;
        }

        .input-wrapper {
            display: flex;
            align-items: center; /* Buton ve input hizalaması için */
            background: var(--input-bg);
            border-radius: 12px;
            padding: 4px;
            border: 1px solid var(--input-border);
            transition: all 0.3s ease;
        }

        .input-wrapper:focus-within {
            background: var(--input-bg);
            border-color: var(--text-muted);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .input-wrapper input {
            flex: 1;
            min-width: 0; /* Mobilde taşmayı önlemek için kritik */
            border: none;
            background: transparent;
            padding: 12px;
            font-size: 1rem;
            color: var(--input-text);
            outline: none;
            font-family: 'Poppins', monospace;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .copy-btn {
            background: var(--copy-btn-bg);
            border: 1px solid transparent;
            padding: 13px 15px;
            margin: 4px;
            border-radius: 8px;
            cursor: pointer;
            color: var(--copy-btn-color);
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .copy-btn:hover {
            background: var(--copy-btn-hover-bg);
            transform: scale(1.05);
        }

        .action-buttons {
            display: flex;
            gap: 12px;
            margin-top: 2rem;
            margin-bottom: 2rem;
            justify-content: center;
        }

        #changeColor {
            position: absolute;
            opacity: 0;
            width: 0;
            height: 0;
            pointer-events: none;
        }

        .btn {
            padding: 12px 24px;
            border-radius: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: none;
            font-size: 0.95rem;
            font-weight: 500;
            text-decoration: none;
            user-select: none;
            backdrop-filter: blur(5px);
        }

        .color-btn {
            background: var(--color-btn-bg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--color-btn-text);
        }

        .share-btn {
            background: var(--share-btn-bg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--share-btn-text);
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 15px rgba(0,0,0,0.1);
            filter: brightness(1.1);
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 25px;
            padding-top: 1rem;
            border-top: 1px solid var(--input-border);
        }

        .social-links a {
            color: var(--social-color);
            font-size: 1.6rem;
            transition: transform 0.3s ease, color 0.3s ease;
        }

        .social-links a:hover {
            transform: scale(1.2) rotate(5deg);
            color: var(--social-hover);
        }

        #toast {
            visibility: hidden;
            min-width: 250px;
            background: rgba(0, 0, 0, 0.8);
            color: #fff;
            text-align: center;
            border-radius: 50px;
            padding: 16px 32px;
            position: fixed;
            z-index: 100;
            left: 50%;
            bottom: 30px;
            transform: translateX(-50%);
            font-size: 0.9rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        #toast.show {
            visibility: visible;
            animation: toastIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), toastOut 0.5s 2.5s forwards;
        }

        @keyframes toastIn {
            from { bottom: 0; opacity: 0; transform: translateX(-50%) scale(0.8); }
            to { bottom: 30px; opacity: 1; transform: translateX(-50%) scale(1); }
        }

        @keyframes toastOut {
            from { bottom: 30px; opacity: 1; }
            to { bottom: 0; opacity: 0; }
        }

        @media (max-width: 768px) {
            .blob {
                display: none !important;
            }

            .card {
                padding: 1.5rem;
                border-radius: 0;
                height: 100vh;
                display: flex;
                flex-direction: column;
                justify-content: center;
                background: transparent !important;
                box-shadow: none !important;
                backdrop-filter: none !important;
                -webkit-backdrop-filter: none !important;
                border: none !important;
                width: 100%;
                max-width: 100%;
            }

            /* Mobilde inputların okunabilirliği için */
            .input-wrapper {
                 background: rgba(0, 0, 0, 0.15); 
            }
            
            body.light-theme .input-wrapper {
                 background: rgba(255, 255, 255, 0.4);
            }

            .action-buttons {
                flex-direction: column;
            }
            .btn {
                justify-content: center;
            }
        }