:root{--dialog-bg:var(--surface-1);--dialog-text:var(--text-primary);--dialog-text-secondary:var(--text-secondary);--dialog-border:var(--border);--dialog-input-bg:var(--surface-2);--dialog-input-border:var(--border);--dialog-hover-bg:color-mix(in oklch, var(--text-primary), transparent 92%)}.dialog-overlay{background:color-mix(in srgb, var(--black), transparent 30%);z-index:1100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);justify-content:center;align-items:center;width:100%;max-width:100vw;height:100%;max-height:100dvh;padding:1rem;animation:.25s ease-out dialogBackdropFadeIn;display:flex;position:fixed;inset:0}.dialog-container{background:var(--dialog-bg);border-radius:var(--radius-lg);width:100%;max-width:500px;max-height:90dvh;box-shadow:var(--elev-2);color:var(--dialog-text);animation:.3s ease-out dialogSlideIn;position:relative;overflow-y:auto}@keyframes dialogSlideIn{0%{opacity:0;transform:translateY(-20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes dialogBackdropFadeIn{0%{opacity:0;-webkit-backdrop-filter:blur();backdrop-filter:blur()}to{opacity:1;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}}.dialog-close{cursor:pointer;color:var(--dialog-text-secondary);width:36px;height:36px;transition:background .2s, color .2s, transform var(--dur-fast) var(--ease-spring);z-index:2;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:2rem;line-height:1;display:flex;position:absolute;top:.75rem;right:.75rem}.dialog-close:hover{background:var(--dialog-hover-bg);color:var(--dialog-text)}.dialog-header{z-index:100;isolation:isolate;border-bottom:1px solid var(--dialog-border);background:var(--dialog-bg);padding:1.5rem 3.5rem 1rem 2rem;position:sticky;top:0}.dialog-header h2{color:var(--dialog-text);margin:0 0 .5rem;font-size:1.5rem}.dialog-course-name{color:var(--accent);margin:0;font-weight:500}.dialog-form{padding:2rem}.dialog-form .form-group{margin-bottom:1.75rem}.dialog-form label{color:var(--dialog-text);letter-spacing:-.01em;align-items:center;gap:.375rem;margin-bottom:.75rem;font-size:.9375rem;font-weight:600;display:flex}.dialog-form input,.dialog-form textarea{border:2px solid var(--dialog-input-border);border-radius:var(--radius-md);background:var(--dialog-input-bg);width:100%;color:var(--dialog-text);padding:.875rem 1rem;font-family:inherit;font-size:1rem;transition:all .25s cubic-bezier(.4,0,.2,1)}.dialog-form input:hover,.dialog-form textarea:hover{border-color:color-mix(in oklch, var(--accent), transparent 50%)}.dialog-form input:focus,.dialog-form textarea:focus{border-color:var(--accent);box-shadow:0 4px 16px color-mix(in oklch, var(--accent), transparent 80%), 0 0 0 3px color-mix(in oklch, var(--accent), transparent 90%);outline:none}.dialog-form input:disabled,.dialog-form textarea:disabled{opacity:.6;cursor:not-allowed}.dialog-form .input-error{border-color:var(--danger)}.dialog-form .error-message{color:var(--danger);margin-top:.25rem;font-size:.875rem;display:block}.dialog-form .optional-text{color:var(--dialog-text-secondary);font-size:.875rem;font-weight:400}.dialog-form .submit-button{background:var(--accent);width:100%;color:var(--accent-ink);border-radius:var(--radius-pill);cursor:pointer;box-shadow:0 4px 16px color-mix(in oklch, var(--accent), transparent 70%);border:none;margin-top:1.25rem;padding:1.125rem 1.5rem;font-size:1.0625rem;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.dialog-form .submit-button:before{content:"";background:linear-gradient(135deg, color-mix(in srgb, var(--white), transparent 80%), transparent);opacity:0;transition:opacity .3s;position:absolute;inset:0}.dialog-form .submit-button:hover:not(:active):not(:disabled){background:var(--accent-hover);box-shadow:0 8px 24px color-mix(in oklch, var(--accent), transparent 70%);transform:translateY(-2px)}.dialog-form .submit-button:hover:not(:disabled):before{opacity:1}.dialog-form .submit-button:active:not(:disabled){transform:translateY(-1px)}.dialog-form .submit-button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.dialog-success{text-align:center;padding:3rem 2rem}.dialog-success .success-icon{background:var(--success);width:60px;height:60px;color:var(--white);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 1rem;font-size:2rem;animation:.5s ease-out successPop;display:flex}@keyframes successPop{0%{transform:scale(0)}50%{transform:scale(1.1)}to{transform:scale(1)}}.dialog-success h3{color:var(--dialog-text);margin:0 0 .5rem}.dialog-success p{color:var(--dialog-text-secondary);margin:0}.required-star{color:var(--danger);margin-left:2px;font-weight:700}.optional-text{color:var(--dialog-text-secondary);margin-left:.25rem;font-size:.875rem;font-weight:400}.add-info-button{border:2px dashed var(--dialog-input-border);border-radius:var(--radius-md);width:100%;color:var(--dialog-text-secondary);cursor:pointer;transition:all .25s cubic-bezier(.4, 0, .2, 1), transform var(--dur-fast) var(--ease-spring);background:0 0;justify-content:center;align-items:center;gap:.625rem;margin-bottom:1.5rem;padding:.875rem 1rem;font-size:.9375rem;font-weight:500;display:flex}.add-info-button:hover:not(:active):not(:disabled){border-color:var(--accent);color:var(--accent);background:color-mix(in oklch, var(--accent), transparent 95%);transform:translateY(-1px)}.add-info-button:disabled{opacity:.5;cursor:not-allowed}.add-info-button .add-icon{background:var(--accent);width:24px;height:24px;color:var(--white);border-radius:var(--radius-sm);justify-content:center;align-items:center;font-size:1.25rem;font-weight:600;line-height:1;transition:transform .25s;display:flex}.add-info-button:hover:not(:active):not(:disabled) .add-icon{transform:rotate(90deg)}.form-section-divider{background:linear-gradient(90deg, transparent, var(--dialog-border), transparent);height:1px;margin:2rem 0}.h-captcha{justify-content:center;margin:1rem 0;display:flex}.checkbox-group{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.625rem;margin-top:.75rem;display:grid}.checkbox-label{background:var(--dialog-input-bg);border:2px solid var(--dialog-input-border);border-radius:var(--radius-md);cursor:pointer;color:var(--dialog-text-secondary);-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:.5rem;padding:.875rem 1rem;font-size:.9375rem;font-weight:500;transition:all .25s cubic-bezier(.4,0,.2,1);display:flex;position:relative;overflow:hidden}.checkbox-label:hover{border-color:color-mix(in oklch, var(--accent), transparent 50%);box-shadow:0 4px 12px color-mix(in oklch, var(--accent), transparent 85%);transform:translateY(-2px)}.checkbox-label input[type=checkbox]{opacity:0;pointer-events:none;width:0;height:0;position:absolute}.checkbox-label input[type=checkbox]:checked+span{color:var(--accent);z-index:1;font-weight:600;position:relative}.checkbox-label input[type=checkbox]:checked+span:before{content:"✓";color:var(--accent);font-weight:700;animation:.3s cubic-bezier(.68,-.55,.265,1.55) checkPop;position:absolute;left:-20px}@keyframes checkPop{0%{opacity:0;transform:scale(0)rotate(-45deg)}50%{transform:scale(1.2)rotate(5deg)}to{opacity:1;transform:scale(1)rotate(0)}}.checkbox-label:has(input:checked){background:linear-gradient(135deg, color-mix(in oklch, var(--accent), transparent 85%), color-mix(in oklch, var(--accent), transparent 85%));border-color:var(--accent);box-shadow:0 4px 16px color-mix(in oklch, var(--accent), transparent 75%), 0 0 0 3px color-mix(in oklch, var(--accent), transparent 90%)}.checkbox-label span{z-index:1;transition:all .2s;position:relative}.form-select{background:var(--dialog-input-bg);border:2px solid var(--dialog-input-border);border-radius:var(--radius-md);width:100%;color:var(--dialog-text);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%233b82f6' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-position:right .875rem center;background-repeat:no-repeat;background-size:20px;padding:.875rem 3rem .875rem 1rem;font-size:1rem;font-weight:500;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative}.form-select:hover{border-color:color-mix(in oklch, var(--accent), transparent 50%);box-shadow:0 4px 12px color-mix(in oklch, var(--accent), transparent 90%)}.form-select:focus{border-color:var(--accent);box-shadow:0 4px 16px color-mix(in oklch, var(--accent), transparent 80%), 0 0 0 3px color-mix(in oklch, var(--accent), transparent 90%);outline:none}.form-select option{background:var(--dialog-input-bg);color:var(--dialog-text);padding:.75rem;font-weight:500}body.registration-open{width:100%!important;position:fixed!important;overflow:hidden!important}@media (width<=768px){.dialog-container{max-height:95dvh}.dialog-header{padding:1.25rem 3.25rem .875rem 1.5rem}.dialog-form{padding:1.5rem}.dialog-header h2{font-size:1.25rem}.dialog-close{width:36px;height:36px;top:.5rem;right:.5rem}.checkbox-group{gap:.5rem}.checkbox-label{padding:.4rem .6rem;font-size:.85rem}}