* {
            padding: 0;
            margin: 0;
            font-family: Rubik, sans-serif;
            font-weight: 600;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
            outline: none;
            scroll-behavior: smooth;
        }

        ::-webkit-scrollbar {
            display: none;
        }

        ::selection {
            background: var(--main-theme-color);
            color: var(--txt-cl_1);
        }

        :root {
            --main-bg-color: #0a1f1a;
            --main-bg-dark: #000000;
            --main-theme-color: #ffb800;
            --main-white: #ffffff;
            --txt-cl_1: #ffffff;
            --txt-cl_2: #000000;
            --secondary-green: #2ecc71;
            --dark-green: #1a4d2e;
        }

        body {
            background: #000000;
            display: flex;
            justify-content: center;
            margin: 0;
            padding: 0;
        }

        #app {
            width: 100%;
            max-width: 100vw;
            height: 100vh;
            background: var(--main-bg-dark);
            transition: all 0.3s ease;
            position: relative;
        }

        /* Home Page */
        .home_page {
            position: relative;
            background: radial-gradient(circle at 50% 20%, #1a4d2e 0%, #0f3520 30%, #0a1f1a 60%, #000000 100%);
            width: 100%;
            height: 100vh;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .home_page.hidden {
            display: none;
        }

        /* Background Pattern */
        .home_page::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                radial-gradient(circle at 20% 80%, rgba(255, 184, 0, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(46, 204, 113, 0.03) 0%, transparent 50%);
            z-index: 1;
        }

        .home_index_img {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100%;
            height: 100%;
            z-index: 0;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .blend_home_img {
            opacity: 0.06;
            width: 600px;
            height: auto;
            object-fit: contain;
            filter: blur(3px);
            animation: slowRotate 30s linear infinite;
        }

        @keyframes slowRotate {
            0% {
                transform: rotate(0deg) scale(1);
            }
            50% {
                transform: rotate(5deg) scale(1.05);
            }
            100% {
                transform: rotate(0deg) scale(1);
            }
        }

        .content_wrapper {
            position: relative;
            z-index: 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .top_logo {
            width: 180px;
            height: 180px;
            margin-bottom: 20px;
            filter: drop-shadow(0 8px 25px rgba(255, 184, 0, 0.4));
            animation: float 3s ease-in-out infinite;
            border-radius: 20px;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        .brand_badge {
            background: linear-gradient(135deg, rgba(255, 184, 0, 0.15) 0%, rgba(255, 215, 0, 0.05) 100%);
            border: 2px solid rgba(255, 184, 0, 0.3);
            padding: 8px 24px;
            border-radius: 50px;
            margin-bottom: 30px;
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(255, 184, 0, 0.2);
        }

        .brand_badge_text {
            color: var(--main-theme-color);
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            font-weight: 700;
        }

        .startUp_title {
            font-size: 48px;
            font-weight: 900;
            background: linear-gradient(135deg, #ffb800 0%, #ffd700 30%, #ffed4e 50%, #ffd700 70%, #ffb800 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            background-size: 200% auto;
            animation: shimmer 3s linear infinite;
            margin-bottom: 15px;
            line-height: 1.2;
            text-shadow: 0 0 60px rgba(255, 184, 0, 0.5);
            filter: drop-shadow(0 0 30px rgba(255, 184, 0, 0.3));
        }

        @keyframes shimmer {
            0% {
                background-position: 0% center;
            }
            100% {
                background-position: 200% center;
            }
        }

        .subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
            font-weight: 500;
        }

        .startUp_notice {
            color: var(--secondary-green);
            font-size: 26px;
            margin-bottom: 50px;
            font-weight: 700;
            text-shadow: 0 0 30px rgba(46, 204, 113, 0.5);
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.8;
                transform: scale(1.02);
            }
        }

        .home_action_area {
            display: flex;
            flex-direction: column;
            gap: 18px;
            width: 100%;
            max-width: 320px;
        }

        .h_action {
            font-size: 17px;
            padding: 20px 50px;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            position: relative;
            overflow: hidden;
        }

        .h_action::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .h_action:active::before {
            width: 300px;
            height: 300px;
        }

        .btn_start {
            border: 3px solid var(--main-theme-color);
            color: var(--main-theme-color);
            background: linear-gradient(135deg, rgba(255, 184, 0, 0.1) 0%, transparent 100%);
            box-shadow: 0 8px 32px rgba(255, 184, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
        }

        .btn_start:hover {
            background: linear-gradient(135deg, var(--main-theme-color) 0%, #ffd700 100%);
            color: #000;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 12px 40px rgba(255, 184, 0, 0.6);
            border-color: #ffd700;
        }

        .btn_join {
            background: linear-gradient(135deg, var(--secondary-green) 0%, #27ae60 100%);
            color: var(--txt-cl_1);
            border: 3px solid transparent;
            box-shadow: 0 8px 32px rgba(46, 204, 113, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            position: relative;
        }

        .btn_join::after {
            content: "→";
            position: absolute;
            right: 30px;
            opacity: 0;
            transition: all 0.3s ease;
        }

        .btn_join:hover {
            background: linear-gradient(135deg, #27ae60 0%, var(--secondary-green) 100%);
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 12px 40px rgba(46, 204, 113, 0.6);
            padding-right: 60px;
        }

        .btn_join:hover::after {
            opacity: 1;
            right: 25px;
        }

        .features_hint {
            margin-top: 40px;
            display: flex;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }

        .feature_badge {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(10px);
        }

        /* Key Validation Page */
        .key-validation {
            min-height: 100vh;
            display: none;
            align-items: center;
            justify-content: center;
            background: radial-gradient(circle at 50% 20%, #1a4d2e 0%, #0f3520 30%, #0a1f1a 60%, #000000 100%);
            padding: 2rem;
            overflow: hidden;
            position: relative;
        }

        .key-validation::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                radial-gradient(circle at 20% 80%, rgba(255, 184, 0, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(46, 204, 113, 0.03) 0%, transparent 50%);
            z-index: 1;
        }

        .key-validation.active {
            display: flex;
        }

        .validation_bg_logo {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            opacity: 0.06;
            width: 600px;
            height: auto;
            filter: blur(3px);
            z-index: 0;
        }

        .validation-card {
            max-width: 400px;
            width: 100%;
            color: #fff;
            text-align: center;
            position: relative;
            z-index: 10;
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(20px);
            padding: 40px 30px;
            border-radius: 30px;
            border: 2px solid rgba(255, 184, 0, 0.2);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }

        .validation_icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, rgba(255, 184, 0, 0.2) 0%, rgba(255, 215, 0, 0.1) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            border: 3px solid rgba(255, 184, 0, 0.3);
            font-size: 40px;
        }

        .validation-card h1 {
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, #ffb800 0%, #ffd700 50%, #ffb800 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-weight: 900;
        }

        .validation-card p {
            opacity: 0.7;
            margin-bottom: 2rem;
            font-size: 1rem;
            font-weight: 500;
        }

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

        .input_icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 20px;
            color: rgba(255, 184, 0, 0.6);
        }

        .validation-card input {
            width: 100%;
            padding: 1.2rem 1.2rem 1.2rem 50px;
            background: rgba(255, 184, 0, 0.08);
            border: 2px solid rgba(255, 184, 0, 0.3);
            border-radius: 15px;
            color: #fff;
            font-size: 16px;
            transition: all 0.3s ease;
            font-weight: 600;
        }

        .validation-card input:focus {
            border-color: var(--main-theme-color);
            box-shadow: 0 0 30px rgba(255, 184, 0, 0.4);
            background: rgba(255, 184, 0, 0.15);
        }

        .validation-card input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .validation-card button {
            width: 100%;
            padding: 1.2rem;
            margin-top: 0.8rem;
            border-radius: 15px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .validation-card button[type="submit"] {
            background: linear-gradient(135deg, var(--main-theme-color) 0%, #ffd700 100%);
            color: #000;
            border: none;
            box-shadow: 0 8px 30px rgba(255, 184, 0, 0.4);
        }

        .validation-card button[type="submit"]:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(255, 184, 0, 0.6);
        }

        .validation-card button[type="button"] {
            background: rgba(46, 204, 113, 0.1);
            color: var(--secondary-green);
            border: 2px solid rgba(46, 204, 113, 0.3);
        }

        .validation-card button[type="button"]:hover {
            background: var(--secondary-green);
            color: #fff;
            transform: translateY(-2px);
            border-color: var(--secondary-green);
        }

        @media (max-width: 400px) {
            .startUp_title {
                font-size: 38px;
            }
            
            .startUp_notice {
                font-size: 22px;
            }
            
            .h_action {
                font-size: 15px;
                padding: 18px 40px;
            }
            
            .validation-card {
                padding: 30px 20px;
            }
            
            .validation-card h1 {
                font-size: 1.8rem;
            }
        }