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

        body {
            background: linear-gradient(145deg, #0A0F1A 0%, #020408 100%);
            font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
            min-height: 100vh;
            padding: 2rem 1.5rem;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 20%, rgba(0, 255, 200, 0.03) 0%, transparent 70%);
            pointer-events: none;
        }

        .container {
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            animation: slideUp 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.1);
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* main card */
        .card {
            background: rgba(10, 20, 30, 0.7);
            backdrop-filter: blur(22px);
            border-radius: 2.5rem;
            border: 1px solid rgba(0, 255, 200, 0.35);
            box-shadow: 0 30px 55px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 255, 188, 0.1);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: 0 35px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 255, 200, 0.2);
        }

        /* header with logo */
        .header {
            background: linear-gradient(135deg, #02100E, #031F1C);
            padding: 2rem 1.8rem 1.5rem;
            text-align: center;
            border-bottom: 2px solid #1effbc;
            position: relative;
        }

        .logo {
            max-width: 280px;
            width: 85%;
            height: auto;
            filter: drop-shadow(0 8px 20px rgba(0, 210, 180, 0.4));
            transition: all 0.3s;
        }

        .logo:hover {
            filter: drop-shadow(0 12px 28px rgba(30, 255, 188, 0.5));
            transform: scale(1.01);
        }

        .badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.8rem;
            margin-top: 1.2rem;
        }

        .badge {
            background: rgba(0, 35, 35, 0.7);
            backdrop-filter: blur(4px);
            padding: 0.4rem 1.2rem;
            border-radius: 60px;
            font-size: 0.7rem;
            font-weight: 600;
            color: #cafff0;
            border-left: 2px solid #1effbc;
        }

        /* form area */
        .form-area {
            padding: 2rem 2rem 1.8rem;
        }

        .field {
            margin-bottom: 2rem;
        }

        .label {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #e2fff2;
            font-weight: 700;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 0.7rem;
        }

        .phone-wrapper {
            display: flex;
            align-items: center;
            background: rgba(12, 24, 36, 0.9);
            border-radius: 100px;
            border: 1px solid rgba(30, 255, 188, 0.45);
            transition: all 0.2s;
        }

        .phone-wrapper:focus-within {
            border-color: #1effbc;
            box-shadow: 0 0 16px rgba(30, 255, 188, 0.2);
        }

        .country-code {
            background: #102E2C;
            padding: 0.9rem 1.5rem;
            border-radius: 100px 0 0 100px;
            font-weight: 800;
            color: #1effbc;
            font-size: 1rem;
        }

        .phone-wrapper input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 0.9rem 1.2rem;
            font-size: 1rem;
            font-weight: 500;
            color: #ffffff;
            outline: none;
            font-family: 'Inter', monospace;
        }

        .phone-wrapper input::placeholder {
            color: #6f9b8c;
            font-weight: 450;
        }

        /* ATTACK control */
        .ATTACK-control {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .stepper {
            background: rgba(12, 24, 36, 0.9);
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            border: 1px solid rgba(30, 255, 188, 0.45);
            padding: 0.2rem 0.6rem;
        }

        .stepper button {
            background: #15323E;
            border: none;
            width: 52px;
            height: 52px;
            border-radius: 60px;
            font-size: 2rem;
            font-weight: bold;
            color: #1effbc;
            cursor: pointer;
            transition: all 0.1s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .stepper button:active {
            transform: scale(0.92);
            background: #2effbc30;
        }

        #ATTACKValue {
            width: 85px;
            text-align: center;
            font-size: 1.8rem;
            font-weight: 800;
            background: transparent;
            border: none;
            color: #feffdb;
            font-family: 'JetBrains Mono', monospace;
        }

        /* attack button */
        .attack-btn {
            width: 100%;
            background: linear-gradient(105deg, #00cf9c, #008064);
            border: none;
            padding: 1.15rem;
            border-radius: 100px;
            font-weight: 800;
            font-size: 1.2rem;
            color: #02100c;
            letter-spacing: 2.5px;
            margin: 1.8rem 0 1.8rem;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 10px 0 #004d3b;
            text-transform: uppercase;
            position: relative;
            overflow: hidden;
        }

        .attack-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
            transition: left 0.5s;
        }

        .attack-btn:hover::before {
            left: 100%;
        }

        .attack-btn:active {
            transform: translateY(4px);
            box-shadow: 0 6px 0 #004d3b;
        }

        .attack-btn:disabled {
            opacity: 0.55;
            transform: none;
            cursor: not-allowed;
            box-shadow: 0 10px 0 #004d3b;
        }

        /* stats panel */
        .stats-panel {
            background: rgba(0, 20, 24, 0.65);
            backdrop-filter: blur(12px);
            border-radius: 1.8rem;
            padding: 1.2rem;
            border: 1px solid rgba(30, 255, 188, 0.3);
        }

        .stats-grid {
            display: flex;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .stat-item {
            flex: 1;
            background: linear-gradient(145deg, rgba(0, 40, 40, 0.55), rgba(0, 20, 22, 0.7));
            border-radius: 1.5rem;
            padding: 0.9rem 0.3rem;
            text-align: center;
            border: 1px solid rgba(30, 255, 188, 0.2);
            transition: all 0.2s;
        }

        .stat-item:hover {
            transform: translateY(-2px);
            border-color: rgba(30, 255, 188, 0.6);
        }

        .stat-title {
            font-size: 0.65rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: #b2f0e2;
            margin-bottom: 0.4rem;
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            font-family: 'JetBrains Mono', monospace;
            line-height: 1;
        }

        .total .stat-number { color: #c9ffff; text-shadow: 0 0 5px rgba(0,255,200,0.3); }
        .success .stat-number { color: #6effa5; text-shadow: 0 0 4px #00cc7740; }
        .failed .stat-number { color: #ffbc8c; text-shadow: 0 0 3px #ff8840; }

        .status {
            text-align: center;
            margin-top: 1rem;
            font-size: 0.7rem;
            font-weight: 500;
            color: #c7fff0;
            background: rgba(0, 30, 32, 0.6);
            padding: 0.7rem;
            border-radius: 60px;
        }

        footer {
            text-align: center;
            padding: 1rem;
            font-size: 0.65rem;
            border-top: 1px solid rgba(30, 255, 188, 0.3);
            color: #71dbbc;
            background: rgba(1, 12, 14, 0.5);
            font-weight: 500;
        }

        @keyframes pulseGlow {
            0% { box-shadow: 0 0 0 0 rgba(30, 255, 188, 0.2); }
            70% { box-shadow: 0 0 0 8px rgba(30, 255, 188, 0); }
            100% { box-shadow: 0 0 0 0 rgba(30, 255, 188, 0); }
        }

        .attack-btn:not(:disabled) {
            animation: pulseGlow 1.8s infinite;
        }

        @media (max-width: 580px) {
            .form-area { padding: 1.5rem; }
            .stat-number { font-size: 1.8rem; }
            .stepper button { width: 44px; height: 44px; font-size: 1.6rem; }
            .logo { max-width: 220px; }
            .country-code { padding: 0.75rem 1.2rem; }
        }