:root {
            --primary-red: #d32f2f;
            --dark-red: #b71c1c;
            --darker-red: #8b0000;
        }

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

        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #2d0000 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* Landing Page Styles */
        #landingPage {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            position: relative;
            overflow: hidden;
        }

        .animated-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .animated-bg::before,
        .animated-bg::after {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.3;
            animation: float 20s infinite;
        }

        .animated-bg::before {
            background: var(--primary-red);
            top: -200px;
            left: -200px;
            animation-delay: 0s;
        }

        .animated-bg::after {
            background: var(--primary-red);
            bottom: -200px;
            right: -200px;
            animation-delay: 10s;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            33% { transform: translate(100px, -100px) scale(1.1); }
            66% { transform: translate(-100px, 100px) scale(0.9); }
        }

        .landing-content {
            position: relative;
            z-index: 10;
            text-align: center;
            max-width: 900px;
            width: 100%;
        }

        .logo-container {
            margin-bottom: 40px;
            animation: fadeInDown 1s ease-out;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            padding: 30px 40px;
            border: 2px solid rgba(255, 255, 255, 0.1);

        }

        .main-logo {
            max-width: 280px;
            height: auto;
            margin: 0 auto;
            filter: drop-shadow(0 10px 30px rgba(211, 47, 47, 0.4));
            border-radius: 12px;
        }

        .event-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            padding: 50px 40px;
            border: 2px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 20px 60px rgba(211, 47, 47, 0.3);
            animation: fadeInUp 1s ease-out 0.3s backwards;
            margin-bottom: 40px;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .event-title {
            color: #ffffff;
            font-size: 2.5rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 15px;
            text-shadow: 0 0 30px rgba(211, 47, 47, 0.5);
        }

        .event-title .highlight {
            color: var(--primary-red);
            text-shadow: 0 0 40px rgba(211, 47, 47, 0.8);
        }

        .event-details {
            margin: 30px 0;
        }

        .detail-item {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            padding: 12px 25px;
            border-radius: 50px;
            margin: 8px;
            color: #ffffff;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }

        .detail-item:hover {
            background: rgba(211, 47, 47, 0.2);
            border-color: var(--primary-red);
            transform: translateY(-3px);
        }

        .detail-item i {
            color: var(--primary-red);
            font-size: 1.2rem;
            margin-right: 10px;
        }

        .event-description {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
            line-height: 1.7;
            margin: 25px 0;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .register-btn {
            background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: none;
            border-radius: 50px;
            padding: 18px 60px;
            transition: all 0.4s ease;
            box-shadow: 0 10px 40px rgba(211, 47, 47, 0.4);
            position: relative;
            overflow: hidden;
            margin-top: 25px;
        }

        .register-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s;
        }

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

        .register-btn:hover {
            background: linear-gradient(135deg, var(--dark-red) 0%, var(--darker-red) 100%);
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 15px 50px rgba(211, 47, 47, 0.6);
        }

        .partner-logos {
            padding: 35px 0;
            background: rgba(255, 255, 255, 0.03);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            animation: fadeInUp 1s ease-out 0.6s backwards;
            position: relative;
            overflow: hidden;
        }

        .logo-slider {
            display: flex;
            align-items: center;
            gap: 50px;
            animation: slideLogos 20s linear infinite;
            width: max-content;
        }

        @keyframes slideLogos {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        .logo-slider:hover {
            animation-play-state: paused;
        }

        .partner-logo-item {
            background: rgba(255, 255, 255, 0.95);
            padding: 15px 35px;
            border-radius: 12px;
            transition: all 0.4s ease;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
            flex-shrink: 0;
        }

        .partner-logo-item:hover {
            transform: translateY(-10px) scale(1.05);
            box-shadow: 0 10px 30px rgba(211, 47, 47, 0.3);
        }

        .partner-logo-item img {
            height: 45px;
            width: auto;
            display: block;
        }

        /* Registration Form Styles */
        #registrationSection {
            display: none;
            padding: 30px 15px;
            min-height: 100vh;
        }

        .registration-container {
            max-width: 650px;
            margin: 0 auto;
        }

        .back-btn {
            background: rgba(255, 255, 255, 0.1);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-bottom: 20px;
            font-size: 0.9rem;
        }

        .back-btn:hover {
            background: rgba(211, 47, 47, 0.2);
            border-color: var(--primary-red);
            color: #ffffff;
        }

        .card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 8px 32px rgba(211, 47, 47, 0.2);
            animation: fadeIn 0.5s ease-in;
        }

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

        .card-header {
            background: transparent;
            border-bottom: 2px solid rgba(211, 47, 47, 0.3);
            padding: 25px;
            text-align: center;
        }

        .card-title {
            color: #ffffff;
            font-size: 1.6rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }

        .accent {
            color: var(--primary-red);
        }

        .card-subtitle {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        .card-body {
            padding: 35px;
        }

        .form-label {
            color: #ffffff;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-size: 0.75rem;
            margin-bottom: 8px;
        }

        .required {
            color: var(--primary-red);
        }

        .optional-badge {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.7rem;
            padding: 2px 8px;
            border-radius: 5px;
            text-transform: none;
            font-weight: 400;
            margin-left: 8px;
        }

        .form-control {
            background: rgba(255, 255, 255, 0.08);
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: #ffffff;
            padding: 12px 18px;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.85rem;
        }

        .form-control:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--primary-red);
            box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15);
            color: #ffffff;
        }

        .form-control:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        .input-group-text {
            background: rgba(255, 255, 255, 0.08);
            border: 2px solid rgba(255, 255, 255, 0.1);
            border-right: none;
            color: var(--primary-red);
            font-size: 1rem;
        }

        .input-group .form-control {
            border-left: none;
        }

        .input-group:focus-within .input-group-text {
            border-color: var(--primary-red);
            background: rgba(255, 255, 255, 0.12);
        }

        .input-group:focus-within .form-control {
            border-left: none;
        }

        .btn-register-form {
            background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: none;
            border-radius: 10px;
            padding: 15px;
            width: 100%;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
        }

        .btn-register-form:hover {
            background: linear-gradient(135deg, var(--dark-red) 0%, var(--darker-red) 100%);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(211, 47, 47, 0.4);
        }

        .invalid-feedback {
            color: var(--primary-red);
            font-size: 0.8rem;
            display: none;
        }

        .form-control.is-invalid {
            border-color: var(--primary-red);
        }

        .form-control.is-invalid ~ .invalid-feedback {
            display: block;
        }

        .alert-success {
            background: rgba(0, 255, 0, 0.1);
            border: 2px solid rgba(0, 255, 0, 0.3);
            color: #00ff00;
            border-radius: 10px;
            font-size: 0.9rem;
        }

        .card-footer {
            background: transparent;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8rem;
        }
        .countdown-section {
            margin: 30px 0 20px 0;
            animation: fadeInUp 1s ease-out 0.4s backwards;
        }

        .countdown-timer {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(211, 47, 47, 0.3);
            border-radius: 15px;
            padding: 20px 25px;
            min-width: 100px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .countdown-item:hover {
            background: rgba(211, 47, 47, 0.15);
            border-color: var(--primary-red);
            transform: translateY(-5px);
        }

        .countdown-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-red);
            text-shadow: 0 0 20px rgba(250, 248, 248, 0.6);
            display: block;
            line-height: 1;
            margin-bottom: 8px;
        }

        .countdown-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            text-transform: uppercase;
            letter-spacing: 1px;
            font-weight: 600;
        }

        @media (max-width: 576px) {
            .countdown-item {
                min-width: 80px;
                padding: 15px 20px;
            }

            .countdown-number {
                font-size: 2rem;
            }

            .countdown-label {
                font-size: 0.7rem;
            }
        }


        @media (max-width: 768px) {
            .event-title {
                font-size: 2rem;
            }

            .event-card {
                padding: 35px 25px;
            }

            .register-btn {
                font-size: 1rem;
                padding: 15px 40px;
            }

            .detail-item {
                width: 100%;
                justify-content: center;
            }

            .partner-logo-item img {
                height: 35px;
            }

            .main-logo {
                max-width: 220px;
            }
        }

        @media (max-width: 576px) {
            .event-title {
                font-size: 1.6rem;
            }

            .card-body {
                padding: 25px 20px;
            }

            .form-control {
                padding: 10px 15px;
                font-size: 0.85rem;
            }

            .card-title {
                font-size: 1.3rem;
            }
        }