* {
            /* margin: 0; */
            /* padding: 0; */
            box-sizing: border-box;
            transition: all 0.4s ease;

        }

        :root {
            --primary-blue: #518fe1;
            --primary-darker-blue: #4777b7;
            --accent-orange: #C20E29;
            --light-gray: #f8f9fa;
            --medium-gray: linear-gradient(135deg, #d3dae8 0%, #d0defa36 100%);
            --dark-gray: #6c757d;
            --text-color: #333;
            --text-trans-color: #000000b3;
            --white: #ffffff;
            --background: #eff2f8;
            --background2: #eff2f8;
            --button-background: linear-gradient(135deg, #20762e 0%, #53ce31 100%);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            --border-radius: 16px;
            --border-color: 1px solid #e2e8f0;

            --dark-primary-blue: #264772;
            --dark-primary-darker-blue: #344b6c;
            /* --dark-accent-orange: #ff6b4a; */
            --dark-accent-orange: #d81e3a;
            --dark-light-gray: #2d2d2d;
            --dark-medium-gray: #1c1c1c;
            --dark-dark-gray: #a0a0a0;
            --dark-text-color: #e4e6eb;
            --dark-text-trans-color: #cdcdcd8a;

            --dark-white: #121212;
            --dark-background: #080808;
            --dark-background2: #101010;
            --dark-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            --dark-hover-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
            --dark-border-color: #ffffff;

        }

        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background: var(--background);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            direction: rtl;
        }

        a {
            text-decoration: none;
        }



        .container {
            max-width: 900px;
            width: 100%;
            background: var(--white);
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.8s ease-out forwards;
        }

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

        .header {
            /* padding: 20px 40px; */
            text-align: center;
            position: relative;
            border-bottom: var(--border-color);
        }

        .logo-container {
            position: relative;
            opacity: 0;
            transform: scale(0.95);
            animation: logoAppear 1s ease-out 0.3s forwards;
        }

        @keyframes logoAppear {
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .logo {
            width: 320px;
            filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: translateY(-3px);
        }

        .title {
            /* margin-top: 25px;
            font-size: 2rem;
            font-weight: 600;
            color: #2d3748;
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 12px; */
            font-weight: lighter;
            opacity: 0;
            animation: fadeIn 0.8s ease-out 0.6s forwards;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
            }
        }

        .title-icon {
            font-size: 1.8rem;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0) rotate(0deg);
            }

            50% {
                transform: translateY(-8px) rotate(5deg);
            }
        }

        .content {
            padding: 10px;
        }

        .suggest-query {
            padding: 4px !important;
            background: var(--primary-darker-blue) !important;
            display: inline;
            font-size: 12px !important;
            border-radius: 4px !important;
            cursor: pointer;
            color: rgb(241 241 241) !important;
        }

        .input-section {
            background: var(--background2);
            padding: 10px;
            border-radius: 16px;
            margin-bottom: 10px;
            /* border: 2px solid #e2e8f0; */
            transition: all 0.3s ease;
        }

        .input-section:focus-within {
            /* border-color: #4299e1; */
            /* box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1); */
            transform: translateY(-2px);
        }

        .input-wrapper {
            display: flex;
            gap: 12px;
            margin-bottom: 15px;
        }

        #prompt-input {
            flex: 1;
            padding: 4px 16px;
            border: var(--border-color);
            border-radius: 12px;
            font-size: 1rem;
            font-family: inherit;
            transition: all 0.3s ease;
            background: var(--white);
            color: var(--text-color);
        }

        #prompt-input:focus {
            outline: none;
            display: inline;
            /* border-color: #4299e1; */
            /* box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1); */
        }

        #prompt {
            padding: 3px 15px;
            background: var(--medium-gray);
            ;
            display: inline-block;
            border-radius: 6px;
            color: var(--text-trans-color);
            margin-bottom: 10px;
        }

        .button {
            padding: 8px;
            background: var(--button-background);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            /* font-weight: 600; */
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            align-items: center;
            /* gap: 8px; */
            white-space: nowrap;
            margin-top: 4px;
            margin-bottom: 8px;
        }

        .button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(66, 153, 225, 0.3);
            background: linear-gradient(135deg, #2d9b3f 0%, #398d22 100%);

        }

        #send-button {
            /* padding: 16px 32px; */
            padding: 0px 32px;
            background: var(--primary-blue);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: lighter;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        #send-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(66, 153, 225, 0.3);
            background: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
        }



        #send-button:active {
            transform: translateY(0);
        }

        .hint {
            color: #718096;
            font-size: 0.9rem;
            text-align: center;
            margin-top: 10px;
            opacity: 0.8;
        }

        #response-container {
            min-height: 200px;
            padding: 30px;
            background: var(--background2);
            border-radius: 16px;
            border: var(--border-color);
            font-size: 1.05rem;
            line-height: 1.6;
            transition: all 0.3s ease;
            color: var(--text-color);
        }

        #response-container:not(:empty) {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        #response-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 20px 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            border: var(--border-color);
        }

        .loading {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: #4299e1;
            font-weight: 500;
        }

        .loading::before {
            /* content: '';
            width: 20px;
            height: 20px;
            border: 2px solid #4299e1;
            border-top-color: transparent;
            border-radius: 50%;
            animation: spin 1s linear infinite; */
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        .about-section {
            /* margin-top: 40px; */
            padding-top: 30px;
            border-top: var(--border-color);
            color: var(--text-color);
        }

        .about-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-color);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .about-title::before {
            content: '⚡';
            font-size: 1.1em;
        }

        .about-content {
            line-height: 1.7;
            font-size: 1rem;
        }

        .error {
            color: #e53e3e;
            background: rgba(229, 62, 62, 0.1);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid rgba(229, 62, 62, 0.2);
        }

        .molecule-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #4299e1, #805ad5);
            color: white;
            border-radius: 50%;
            font-size: 1.2rem;
            font-weight: bold;
        }


        /* LOADER start */
        /* HTML: <div class="loader"></div> */
        .loader {
            width: 50px;
            aspect-ratio: 1;
            zoom:0.4;
            border-radius: 50%;
            border: 8px solid;
            border-color: var(--primary-blue) var(--background2);

            animation: l1 1s infinite;
        }

        @keyframes l1 {
            to {
                transform: rotate(.5turn)
            }
        }

        /* LOADER END */

        @media (max-width: 768px) {
            .container {
                max-width: 100%;
                border-radius: 16px;
            }

            .header {
                padding: 30px 20px;
            }

            .logo {
                width: 250px;
            }

            .title {
                font-size: 1.6rem;
                flex-direction: column;
                gap: 8px;
            }

            .content {
                padding: 25px;
            }

            .input-wrapper {
                flex-direction: column;
            }

            #send-button {
                width: 100%;
                justify-content: center;
            }
        }