:root{--primary-color: #0a2540;--secondary-color: #007bff;--background-color: #f6f9fc;--text-color: #333;--border-color: #e6e6e6;--success-color: #28a745;--error-color: #dc3545}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;margin:0;background-color:var(--background-color);color:var(--text-color)}.container{max-width:1100px;margin:2rem auto;padding:0 2rem}.navbar{background-color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a}.nav-brand{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.nav-links a{margin:0 1rem;text-decoration:none;color:var(--text-color);font-weight:500}.nav-links .nav-button{background:var(--secondary-color);color:#fff;border:none;padding:.5rem 1rem;border-radius:5px;cursor:pointer;font-size:1rem}.form-container{max-width:500px;margin:2rem auto;padding:2rem;background:#fff;border-radius:8px;box-shadow:0 4px 6px #0000001a}.form-container h2{margin-top:0;color:var(--primary-color)}.form-container input,.form-container textarea{width:100%;padding:.8rem;margin-bottom:1rem;border:1px solid var(--border-color);border-radius:5px;box-sizing:border-box}.form-container button{width:100%;padding:.8rem;background:var(--secondary-color);color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:1.1rem}.dashboard-container h2{color:var(--primary-color)}.plans-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.plan-card{background:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 4px 6px #0000001a}.plan-card h3{margin-top:0}.plan-price{font-size:1.5rem;font-weight:700;color:var(--secondary-color)}.plan-card button{width:100%;padding:.7rem;margin-top:1rem;background:var(--primary-color);color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:1rem}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;display:flex;justify-content:center;align-items:center}.modal-content{background:#fff;padding:2rem;border-radius:8px;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;position:relative}.modal-close{position:absolute;top:1rem;right:1rem;font-size:1.5rem;background:none;border:none;cursor:pointer}.file-upload-section{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.file-upload-section input{display:block;margin-bottom:1rem}.success-message{color:var(--success-color);margin-top:1rem;text-align:center}.error-message{color:var(--error-color);margin-top:1rem;text-align:center}.file-input-container{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.file-upload-label{background-color:var(--primary-color);color:#fff;padding:.7rem 1.2rem;border-radius:5px;cursor:pointer;font-weight:500;transition:background-color .2s ease-in-out;display:inline-block}.file-upload-label:hover{background-color:#061c31}.file-name-display{font-style:italic;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}.upload-submit-btn{width:100%;padding:.8rem;background:var(--success-color);color:#fff;border:none;border-radius:5px;cursor:pointer;font-size:1.1rem;font-weight:700;transition:background-color .2s ease-in-out}.upload-submit-btn:hover{background-color:#218838}.upload-submit-btn:disabled{background-color:#a0a0a0;cursor:not-allowed}.post-upload-message{text-align:center;margin-top:-.5rem;margin-bottom:1.5rem;color:var(--success-color);font-weight:500;font-style:italic}.dashboard-alert{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb;padding:1rem;border-radius:5px;margin-bottom:1.5rem;text-align:center;font-weight:500}.form-container .signup-button{display:block;width:100%;box-sizing:border-box;text-align:center;margin-top:1rem;padding:.8rem;background:#6c757d;color:#fff;text-decoration:none;border-radius:5px;font-size:1.1rem;transition:background-color .2s}.form-container .signup-button:hover{background-color:#5a6268}