/* Animated Background */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }

        .floating-shapes {
            position: absolute;
            width: 100%;
            height: 100%;
        }

        .shape {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(45deg, rgba(95, 20, 255, 0.1), rgba(255, 0, 110, 0.1));
            animation: float 20s infinite ease-in-out;
        }

        .shape:nth-child(1) {
            width: 200px;
            height: 200px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .shape:nth-child(2) {
            width: 150px;
            height: 150px;
            top: 60%;
            right: 15%;
            animation-delay: -5s;
            background: linear-gradient(45deg, rgba(0, 220, 130, 0.1), rgba(0, 184, 255, 0.1));
        }

        .shape:nth-child(3) {
            width: 100px;
            height: 100px;
            bottom: 20%;
            left: 20%;
            animation-delay: -10s;
        }

        .shape:nth-child(4) {
            width: 120px;
            height: 120px;
            top: 30%;
            right: 40%;
            animation-delay: -15s;
            background: linear-gradient(45deg, rgba(255, 184, 0, 0.1), rgba(255, 61, 113, 0.1));
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            25% { transform: translateY(-20px) rotate(90deg); }
            50% { transform: translateY(-40px) rotate(180deg); }
            75% { transform: translateY(-20px) rotate(270deg); }
        }

        /* Gradient Background */
        .gradient-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 20% 50%, rgba(95, 20, 255, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 80% 20%, rgba(255, 0, 110, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 40% 80%, rgba(0, 220, 130, 0.1) 0%, transparent 50%);
            z-index: -1;
        }

        /* Main Container */
        .signup-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem 1rem;
            position: relative;
        }

        .signup-card {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 3rem;
            max-width: 700px;
            width: 100%;
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
            animation: slideUp 0.8s ease-out;
        }

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

        .signup-card:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* Header */
        .signup-header {
            text-align: center;
            margin-bottom: 2.5rem;
            animation: fadeInDown 0.8s ease-out 0.2s both;
        }

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

        .logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background: var(--gradient-primary);
            border-radius: 20px;
            margin-bottom: 1.5rem;
            position: relative;
            animation: pulse 2s infinite ease-in-out;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .logo i {
            font-size: 32px;
            color: white;
        }

        .logo::after {
            content: '';
            position: absolute;
            inset: -4px;
            background: var(--gradient-primary);
            border-radius: 24px;
            z-index: -1;
            opacity: 0.3;
            animation: glow 2s infinite ease-in-out alternate;
        }

        @keyframes glow {
            from { opacity: 0.3; transform: scale(1); }
            to { opacity: 0.6; transform: scale(1.1); }
        }

        .signup-title {
            font-size: 2.5rem;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }

        .signup-subtitle {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 400;
        }

        /* Form Rows */
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        @media (max-width: 768px) {
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
        }
        .signup-form {
            animation: fadeInUp 0.8s ease-out 0.4s both;
        }

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

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

        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }

        .form-input {
            width: 100%;
            padding: 1rem 1.25rem;
            background: rgba(255, 255, 255, 0.05);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            color: var(--text-primary);
            font-size: 13px;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 4px rgba(95, 20, 255, 0.1);
            transform: translateY(-2px);
        }

        .form-input:focus + .form-label {
            color: var(--primary);
        }

        .form-input::placeholder {
            color: var(--text-muted);
        }

        /* Input Icons */
        .input-group {
            position: relative;
        }

        .input-icon {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            transition: color 0.3s ease;
            cursor: pointer;
        }

        .form-input:focus ~ .input-icon {
            color: var(--primary);
        }

        .password-toggle {
            cursor: pointer;
            user-select: none;
        }

        /* Password Strength */
        .password-strength {
            margin-top: 0.5rem;
            display: none;
        }

        .password-strength.show {
            display: block;
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .strength-bar {
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 2px;
            overflow: hidden;
            margin-bottom: 0.5rem;
        }

        .strength-fill {
            height: 100%;
            width: 0%;
            transition: width 0.3s ease, background-color 0.3s ease;
            border-radius: 2px;
        }

        .strength-weak { background: var(--danger); }
        .strength-medium { background: var(--warning); }
        .strength-strong { background: var(--success); }

        .strength-text {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Terms Checkbox */
        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }

        .custom-checkbox {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .custom-checkbox input {
            opacity: 0;
            position: absolute;
            width: 100%;
            height: 100%;
            cursor: pointer;
        }

        .checkmark {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.05);
            border: 2px solid var(--border-color);
            border-radius: 6px;
            transition: all 0.3s ease;
        }

        .custom-checkbox input:checked ~ .checkmark {
            background: var(--gradient-primary);
            border-color: var(--primary);
            transform: scale(1.1);
        }

        .checkmark::after {
            content: '';
            position: absolute;
            left: 6px;
            top: 2px;
            width: 6px;
            height: 10px;
            border: solid white;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .custom-checkbox input:checked ~ .checkmark::after {
            opacity: 1;
        }

        .terms-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .terms-text a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .terms-text a:hover {
            color: var(--primary-light);
        }

        /* Submit Button */
        .submit-btn {
            width: 100%;
            padding: 1.25rem 2rem;
            background: var(--gradient-primary);
            border: none;
            border-radius: 12px;
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(95, 20, 255, 0.3);
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(95, 20, 255, 0.4);
        }

        .submit-btn:active {
            transform: translateY(0);
        }

        .submit-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }

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

        .submit-btn:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .btn-loading {
            display: none;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .loading-spinner {
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Benefits Section */
        .benefits {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            animation: fadeIn 0.8s ease-out 0.6s both;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .benefits-title {
            text-align: center;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }

        .benefit-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .benefit-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .benefit-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--gradient-success);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .benefit-icon i {
            color: white;
            font-size: 16px;
        }

        .benefit-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Footer */
        .signup-footer {
            text-align: center;
            margin-top: 2rem;
            animation: fadeIn 0.8s ease-out 0.8s both;
        }

        .signin-link {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .signin-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s ease;
        }

        .signin-link a:hover {
            color: var(--primary-light);
        }

        /* Success Animation */
        .success-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1000;
        }

        .success-content {
            text-align: center;
            animation: bounceIn 0.8s ease-out;
        }

        @keyframes bounceIn {
            0% {
                opacity: 0;
                transform: scale(0.3);
            }
            50% {
                opacity: 1;
                transform: scale(1.1);
            }
            100% {
                opacity: 1;
                transform: scale(1);
            }
        }

        .success-icon {
            width: 100px;
            height: 100px;
            background: var(--gradient-success);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 40px;
            color: white;
        }

        .success-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--success);
        }

        .success-message {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .signup-card {
                padding: 2rem 1.5rem;
                margin: 1rem;
                border-radius: 20px;
            }

            .signup-title {
                font-size: 2rem;
            }

            .signup-subtitle {
                font-size: 13px;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
            }

            .shape {
                display: none;
            }
        }

        /* Custom Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-light);
        }