@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

        body {
            font-family: 'Inter', sans-serif;
            background: 
                linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%),
                url('https://images.unsplash.com/photo-1551434678-e076c223a692?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            position: relative;
        }

        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="rgba(255,255,255,0.1)" fill-opacity="0.1"><circle cx="7" cy="7" r="1"/><circle cx="53" cy="53" r="1"/><circle cx="30" cy="30" r="1"/></g></svg>');
            pointer-events: none;
        }

        .container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 25px;
            padding: 50px;
            max-width: 800px;
            width: 100%;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.3);
            position: relative;
            overflow: hidden;
        }

        .container::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        .header {
            text-align: center;
            margin-bottom: 40px;
            position: relative;
            z-index: 2;
        }

        .logo {
            font-size: 2.5rem;
            font-weight: 900;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 10px;
        }

        .title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #333;
            margin-bottom: 15px;
        }

        .subtitle {
            font-size: 1.1rem;
            color: #666;
            line-height: 1.6;
            max-width: 600px;
            margin: 0 auto;
        }

        .form-container {
            position: relative;
            z-index: 2;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
            margin-bottom: 25px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group.full-width {
            grid-column: 1 / -1;
        }

        .form-label {
            font-weight: 600;
            color: #333;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .form-input,
        .form-select,
        .form-textarea {
            padding: 15px 20px;
            border: 2px solid #e1e5e9;
            border-radius: 12px;
            font-size: 1rem;
            font-family: 'Inter', sans-serif;
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
        }

        .form-input:focus,
        .form-select:focus,
        .form-textarea:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
            background: rgba(255, 255, 255, 0.95);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin: 25px 0;
            padding: 20px;
            background: rgba(102, 126, 234, 0.05);
            border-radius: 12px;
            border-left: 4px solid #667eea;
        }

        .checkbox-input {
            margin-top: 3px;
        }

        .checkbox-label {
            font-size: 0.95rem;
            color: #555;
            line-height: 1.6;
        }

        .checkbox-label a {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
        }

        .checkbox-label a:hover {
            text-decoration: underline;
        }

        .skills-section {
            margin: 30px 0;
        }

        .skills-title {
            font-weight: 700;
            color: #333;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }

        .skill-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 8px;
            border: 2px solid #e1e5e9;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .skill-item:hover {
            background: rgba(102, 126, 234, 0.1);
            border-color: #667eea;
        }

        .skill-checkbox {
            margin: 0;
        }

        .skill-label {
            font-size: 0.9rem;
            color: #555;
            cursor: pointer;
            flex: 1;
        }

        .submit-btn {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
            margin-top: 20px;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
            filter: brightness(1.05);
        }

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

        .submit-btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        /* Success Popup Modal */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(5px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .success-modal {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 50px;
            border-radius: 25px;
            text-align: center;
            max-width: 500px;
            margin: 20px;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
            transform: scale(0.7) translateY(50px);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .modal-overlay.active .success-modal {
            transform: scale(1) translateY(0);
        }

        .success-modal::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"><g fill="rgba(255,255,255,0.1)"><circle cx="5" cy="5" r="1"/><circle cx="35" cy="35" r="1"/><circle cx="20" cy="20" r="1"/></g></svg>');
            opacity: 0.3;
        }

        .success-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            animation: bounce 0.6s ease;
            position: relative;
            z-index: 2;
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
            40% { transform: translateY(-10px); }
            60% { transform: translateY(-5px); }
        }

        .success-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 15px;
            position: relative;
            z-index: 2;
        }

        .success-message {
            font-size: 1.1rem;
            line-height: 1.6;
            opacity: 0.95;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .close-modal-btn {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
        }

        .close-modal-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .back-link {
            display: inline-block;
            margin-top: 30px;
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
        }

        .back-link:hover {
            color: #5a6fd8;
            transform: translateX(-5px);
        }

        .back-link::before {
            content: '← ';
            margin-right: 5px;
        }

        /* Loading state */
        .loading {
            position: relative;
        }

        .loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top: 2px solid white;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: translate(-50%, -50%) rotate(0deg); }
            100% { transform: translate(-50%, -50%) rotate(360deg); }
        }

        /* Mobile Responsiveness */
        @media (max-width: 768px) {
            .container {
                padding: 30px 25px;
                margin: 10px;
            }

            .form-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .title {
                font-size: 1.8rem;
            }

            .logo {
                font-size: 2rem;
            }

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

            .success-modal {
                padding: 40px 30px;
                margin: 15px;
            }

            .success-title {
                font-size: 1.6rem;
            }
        }

        .required {
            color: #e74c3c;
        }

        .error-message {
            color: #e74c3c;
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
        }

        .form-input.error,
        .form-select.error,
        .form-textarea.error {
            border-color: #e74c3c;
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
        }