:root{--primary-bg:#f8f9fa;--secondary-bg:#e9ecef;--light-bg:#f5f7f9;--card-bg:#fff;--text-primary:#212529;--text-secondary:#6c757d;--border-color:#dee2e6;--accent-color:#0d6efd;--accent-hover:#0b5ed7;--success-color:#198754;--danger-color:#dc3545}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;background-color:var(--light-bg);color:var(--text-primary)}.main-content{min-height:calc(100vh - 60px);padding-top:80px}.container{max-width:1200px}.survey-container{max-width:800px;margin:0 auto;padding:2rem 1rem}.question-card{background:var(--card-bg);border-radius:12px;padding:2.5rem;box-shadow:0 2px 8px rgba(0,0,0,.08);margin-bottom:2rem}.question-text{font-size:1.25rem;font-weight:500;margin-bottom:1.5rem;color:var(--text-primary)}.required-badge{color:var(--danger-color);font-weight:600}.optional-badge,.required-badge{font-size:.875rem;margin-left:.5rem}.optional-badge{color:var(--text-secondary);font-weight:400}.likert-scale{display:flex;flex-direction:column;gap:.75rem}.likert-option{display:flex;align-items:center;padding:.75rem;border-radius:8px;cursor:pointer;transition:background-color .2s}.likert-option:hover{background-color:var(--secondary-bg)}.choice-option{display:flex;align-items:center;padding:.75rem;border-radius:8px;cursor:pointer;transition:background-color .2s;margin-bottom:.5rem}.choice-option:hover{background-color:var(--secondary-bg)}.text-area,.text-input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:border-color .2s}.text-area:focus,.text-input:focus{outline:none;border-color:var(--accent-color)}.text-area{min-height:120px;resize:vertical}.survey-navigation{display:flex;justify-content:space-between;margin-top:2rem;gap:1rem}.btn-survey{padding:.75rem 2rem;font-size:1rem;font-weight:500;border-radius:8px;border:none;cursor:pointer;transition:all .2s}.btn-primary-survey{background-color:var(--accent-color);color:#fff}.btn-primary-survey:hover{background-color:var(--accent-hover)}.btn-secondary-survey{background-color:var(--secondary-bg);color:var(--text-primary)}.btn-secondary-survey:hover{background-color:var(--border-color)}.hero-section{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:4rem 2rem;text-align:center;border-radius:12px;margin-bottom:3rem}.hero-title{font-size:2.5rem;font-weight:700;margin-bottom:1rem}.hero-subtitle{font-size:1.25rem;opacity:.9}.feature-card{background:var(--card-bg);border-radius:12px;padding:2rem;box-shadow:0 2px 8px rgba(0,0,0,.08);margin-bottom:1.5rem;transition:transform .2s,box-shadow .2s}.feature-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px rgba(0,0,0,.12)}.progress-indicator{margin-bottom:2rem}.progress-text{text-align:center;color:var(--text-secondary);margin-bottom:.5rem;font-size:.875rem}.contact-container{max-width:600px;margin:0 auto;padding:2rem 1rem}.contact-card{background:var(--card-bg);border-radius:12px;padding:2.5rem;box-shadow:0 2px 8px rgba(0,0,0,.08);text-align:center}.thank-you-container{max-width:600px;margin:0 auto;padding:3rem 1rem;text-align:center}.thank-you-card{background:var(--card-bg);border-radius:12px;padding:3rem;box-shadow:0 2px 8px rgba(0,0,0,.08)}.thank-you-icon{font-size:4rem;color:var(--success-color);margin-bottom:1.5rem}@media (max-width:768px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.question-card{padding:1.5rem}.survey-navigation{flex-direction:column}.btn-survey{width:100%}}