:root{--ltc-primary:#4361ee;--ltc-primary-deep:#3a56d4;--ltc-secondary:#00a86b;--ltc-secondary-light:#e6f0ff;--ltc-danger:#e74c3c;--ltc-bg:#f7f9fb;--ltc-white:#ffffff;--ltc-text:#2b2d42;--ltc-border:#d8dce2;--ltc-radius:8px;--ltc-spacing:1.5rem;--ltc-gap:0.6rem;--ltc-text-muted:#6b7280;--ltc-text-light:#9ca3af;--ltc-surface:#ffffff;--ltc-surface-2:#f0f4ff;--ltc-shadow-sm:0 1px 3px rgba(67, 97, 238, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);--ltc-shadow-md:0 4px 16px rgba(67, 97, 238, 0.1), 0 2px 6px rgba(0, 0, 0, 0.06);--ltc-shadow-lg:0 12px 40px rgba(67, 97, 238, 0.14), 0 4px 12px rgba(0, 0, 0, 0.06);--ltc-transition:0.2s cubic-bezier(0.4, 0, 0.2, 1)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;font-family:"Rubik",sans-serif}.ltc-bg-grid{position:fixed;inset:0;pointer-events:none;z-index:0;background-image:linear-gradient(rgb(67 97 238 / .04) 1px,transparent 1px),linear-gradient(90deg,rgb(67 97 238 / .04) 1px,transparent 1px);background-size:40px 40px}.ltc-header{display:flex;align-items:center;gap:1rem;padding:1.5rem 1rem;border:1px solid var(--ltc-border);border-radius:var(--ltc-radius);box-shadow:var(--ltc-shadow-sm)}.ltc-header-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:var(--ltc-primary)!important;color:#fff!important;border-radius:14px;flex-shrink:0;box-shadow:0 4px 16px rgb(67 97 238 / .35)}.ltc-title{font-size:1.55rem!important;font-weight:700;color:var(--ltc-text)!important;letter-spacing:-.02em;line-height:1.2}.ltc-subtitle{font-size:0.8rem!important;color:var(--ltc-text-muted)!important;font-weight:400;margin-top:2px;letter-spacing:.02em}.ltc-card,.ltc-results-card{background:var(--ltc-surface)!important;border-radius:var(--ltc-radius);border:1px solid var(--ltc-border)!important;box-shadow:var(--ltc-shadow-md);padding:2rem;display:flex;flex-direction:column;gap:1.75rem}.ltc-section{display:flex;flex-direction:column;gap:1rem}.ltc-section+.ltc-section{border-top:1px solid var(--ltc-border)!important;padding-top:1.5rem}.ltc-section-title{font-size:0.8rem!important;font-weight:600;color:var(--ltc-text-muted)!important;text-transform:uppercase;letter-spacing:.08em;display:flex;align-items:center;gap:.6rem}.ltc-section-num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;background:var(--ltc-secondary-light)!important;color:var(--ltc-primary)!important;border-radius:6px;font-size:0.68rem!important;font-weight:700}.ltc-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.ltc-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.ltc-field{display:flex;flex-direction:column;gap:.35rem}.ltc-label{font-size:0.78rem!important;font-weight:500;color:var(--ltc-text)!important;display:flex;align-items:center;gap:.3rem}.ltc-unit{font-size:0.7rem!important;color:var(--ltc-text-muted)!important;font-weight:400}.ltc-input-wrap{position:relative}.ltc-input{width:100%;padding:.6rem .85rem;font-family:"Rubik",sans-serif!important;font-size:0.93rem!important;color:var(--ltc-text)!important;background:var(--ltc-bg)!important;border:1.5px solid var(--ltc-border)!important;border-radius:var(--ltc-radius);outline:none;transition:border-color var(--ltc-transition),box-shadow var(--ltc-transition),background var(--ltc-transition);appearance:none;-webkit-appearance:none}.ltc-input:focus{border-color:var(--ltc-primary)!important;background:var(--ltc-white)!important;box-shadow:0 0 0 3px rgb(67 97 238 / .12)}.ltc-input.ltc-input-error{border-color:var(--ltc-danger)!important;background:#fff5f5!important}.ltc-input::placeholder{color:var(--ltc-text-light)!important}.ltc-input-bar{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--ltc-primary)!important;border-radius:2px;transition:width 0.25s ease}.ltc-input:focus~.ltc-input-bar{width:calc(100% - 4px)}.ltc-select-wrap select.ltc-select{cursor:pointer;padding-right:2.2rem;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E")!important;background-repeat:no-repeat!important;background-position:right .8rem center!important;background-size:12px 8px!important}.ltc-hint{font-size:0.7rem!important;color:var(--ltc-text-light)!important}.ltc-errors{display:none;flex-direction:column;gap:.4rem;padding:.85rem 1rem;background:#fff5f5!important;border:1px solid #fca5a5!important;border-radius:var(--ltc-radius);border-left:4px solid var(--ltc-danger)!important}.ltc-errors.ltc-errors-visible{display:flex}.ltc-error-item{font-size:0.8rem!important;color:#b91c1c!important;display:flex;align-items:center;gap:.4rem}.ltc-error-item::before{content:"⚠";font-size:0.75rem!important}.ltc-btn-calc{display:flex;align-items:center;justify-content:center;gap:.6rem;width:100%;padding:.9rem 1.5rem;background:var(--ltc-primary)!important;color:#ffffff!important;font-family:"Rubik",sans-serif!important;font-size:0.95rem!important;font-weight:600;border:none!important;border-radius:var(--ltc-radius);cursor:pointer;transition:background var(--ltc-transition),transform var(--ltc-transition),box-shadow var(--ltc-transition);box-shadow:0 4px 14px rgb(67 97 238 / .4);letter-spacing:.01em}.ltc-btn-calc:hover{background:var(--ltc-primary-deep)!important;transform:translateY(-1px);box-shadow:0 6px 20px rgb(67 97 238 / .45)}.ltc-btn-calc:active{transform:translateY(0)}.ltc-btn-calc-icon{display:flex;align-items:center;transition:transform var(--ltc-transition)}.ltc-btn-calc:hover .ltc-btn-calc-icon{transform:translateX(3px)}.ltc-results-card{display:none;gap:1.5rem;animation:ltc-fadeSlide 0.4s cubic-bezier(.4,0,.2,1) both}.ltc-results-card.ltc-results-visible{display:flex}@keyframes ltc-fadeSlide{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.ltc-results-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem}.ltc-results-badge{display:inline-flex;align-items:center;gap:.4rem;font-size:0.78rem!important;font-weight:600;color:var(--ltc-secondary)!important;background:#e6f9f1!important;border:1px solid #a7f3d0!important;padding:.3rem .75rem;border-radius:20px}.ltc-lens-type-tag{font-size:0.75rem!important;font-weight:600;color:var(--ltc-primary)!important;background:var(--ltc-secondary-light)!important;padding:.3rem .75rem;border-radius:20px;border:1px solid rgb(67 97 238 / .2)!important}.ltc-metrics{display:flex;align-items:stretch;gap:0;background:var(--ltc-surface-2)!important;border-radius:12px;overflow:hidden;border:1px solid var(--ltc-border)!important}.ltc-metric{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem 1rem;text-align:center;gap:.25rem}.ltc-metric-divider{width:1px;background:var(--ltc-border)!important;margin:.75rem 0}.ltc-metric-value{font-size:2.5rem!important;font-weight:700;color:var(--ltc-primary)!important;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.ltc-metric-label{font-size:0.78rem!important;font-weight:500;color:var(--ltc-text-muted)!important;text-transform:uppercase;letter-spacing:.05em}.ltc-metric-unit{font-size:0.72rem!important;color:var(--ltc-text-light)!important}.ltc-secondary-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}.ltc-sec-metric{display:flex;flex-direction:column;gap:.2rem;padding:.75rem;background:var(--ltc-bg)!important;border-radius:var(--ltc-radius);border:1px solid var(--ltc-border)!important}.ltc-sec-label{font-size:0.68rem!important;color:var(--ltc-text-muted)!important;font-weight:500;text-transform:uppercase;letter-spacing:.04em}.ltc-sec-value{font-size:0.95rem!important;font-weight:600;color:var(--ltc-text)!important;font-variant-numeric:tabular-nums}.ltc-gauge-section{display:flex;flex-direction:column;gap:.6rem}.ltc-gauge-label{font-size:0.72rem!important;font-weight:500;color:var(--ltc-text-muted)!important;text-transform:uppercase;letter-spacing:.05em}.ltc-lens-profile{background:var(--ltc-bg)!important;border:1px solid var(--ltc-border)!important;border-radius:var(--ltc-radius);overflow:hidden;display:flex;align-items:center;justify-content:center;padding:.5rem}#ltc-lens-canvas{max-width:100%;height:auto;display:block}.ltc-recommendation{font-size:0.83rem!important;line-height:1.55;color:var(--ltc-text-muted)!important;background:var(--ltc-secondary-light)!important;border-left:3px solid var(--ltc-primary)!important;border-radius:0 var(--ltc-radius) var(--ltc-radius) 0;padding:.75rem 1rem;display:none}.ltc-recommendation.ltc-rec-visible{display:block}.ltc-recommendation strong{color:var(--ltc-primary)!important}.ltc-actions{display:flex;gap:.6rem;flex-wrap:wrap}.ltc-action-btn{display:flex;justify-content:center;align-items:center;display:inline-flex;align-items:center;gap:.45rem;padding:.6rem 1.1rem;font-family:"Rubik",sans-serif!important;font-size:0.82rem!important;font-weight:500;border-radius:var(--ltc-radius);cursor:pointer;transition:all var(--ltc-transition);border:1.5px solid transparent!important}.ltc-action-pdf{background:var(--ltc-primary)!important;color:#ffffff!important;border-color:var(--ltc-primary)!important}.ltc-action-pdf:hover{background:var(--ltc-primary-deep)!important;transform:translateY(-1px);box-shadow:0 4px 12px rgb(67 97 238 / .3)}.ltc-action-copy{background:var(--ltc-white)!important;color:var(--ltc-primary)!important;border-color:var(--ltc-primary)!important}.ltc-action-copy:hover{background:var(--ltc-secondary-light)!important}.ltc-action-reset{background:var(--ltc-white)!important;color:var(--ltc-danger)!important;border-color:var(--ltc-danger)!important}.ltc-action-reset:hover{background:#fff5f5!important}.ltc-toast{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ltc-text)!important;color:#fff!important;font-size:0.83rem!important;font-weight:500;padding:.65rem 1.25rem;border-radius:30px;box-shadow:0 8px 24px rgb(0 0 0 / .18);opacity:0;pointer-events:none;transition:opacity 0.25s ease,transform 0.25s ease;z-index:1000;white-space:nowrap}.ltc-toast.ltc-toast-show{opacity:1;transform:translateX(-50%) translateY(0)}.ltc-toast.ltc-toast-success{background:var(--ltc-secondary)!important}.ltc-toast.ltc-toast-error{background:var(--ltc-danger)!important}.ltc-modal-overlay{position:fixed;inset:0;background:rgb(43 45 66 / .45)!important;display:flex;align-items:center;justify-content:center;z-index:900;opacity:0;pointer-events:none;transition:opacity 0.2s ease;padding:1rem;backdrop-filter:blur(3px)}.ltc-modal-overlay.ltc-modal-open{opacity:1;pointer-events:all}.ltc-modal{background:var(--ltc-white)!important;border-radius:16px;padding:2rem;max-width:380px;width:100%;box-shadow:var(--ltc-shadow-lg);display:flex;flex-direction:column;align-items:center;gap:.75rem;text-align:center;transform:scale(.96);transition:transform 0.2s ease}.ltc-modal-overlay.ltc-modal-open .ltc-modal{transform:scale(1)}.ltc-modal-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:#fff8e1!important;color:#f59e0b!important;border-radius:50%}.ltc-modal-title{font-size:1.1rem!important;font-weight:600;color:var(--ltc-text)!important}.ltc-modal-body{font-size:0.85rem!important;color:var(--ltc-text-muted)!important}.ltc-modal-actions{display:flex;gap:.6rem;width:100%;margin-top:.5rem}.ltc-modal-btn{flex:1;padding:.65rem 1rem;border-radius:var(--ltc-radius);font-family:"Rubik",sans-serif!important;font-size:0.85rem!important;font-weight:500;cursor:pointer;transition:all var(--ltc-transition)}.ltc-modal-cancel{background:var(--ltc-bg)!important;color:var(--ltc-text-muted)!important;border:1.5px solid var(--ltc-border)!important}.ltc-modal-cancel:hover{background:var(--ltc-border)!important}.ltc-modal-confirm{background:var(--ltc-danger)!important;color:#ffffff!important;border:1.5px solid var(--ltc-danger)!important}.ltc-modal-confirm:hover{background:#c0392b!important;border-color:#c0392b!important}.ltc-footer{text-align:center;padding:.25rem}.ltc-footer p{font-size:0.72rem!important;color:var(--ltc-text-light)!important;line-height:1.6}.ltc-footer strong{color:var(--ltc-text-muted)!important;font-weight:600}input[type="number"]::-webkit-inner-spin-button,input[type="number"]::-webkit-outer-spin-button{-webkit-appearance:none}input[type="number"]{-moz-appearance:textfield}@media (max-width:640px){.ltc-card,.ltc-results-card{padding:1.25rem;gap:1.25rem;border-radius:12px}.ltc-header{gap:.75rem}.ltc-header-icon{width:44px;height:44px;border-radius:12px}.ltc-title{font-size:1.25rem!important}.ltc-grid-3{grid-template-columns:1fr}.ltc-grid-2{grid-template-columns:1fr}.ltc-metrics{flex-direction:column}.ltc-metric-divider{width:100%;height:1px;margin:0 .75rem}.ltc-secondary-metrics{grid-template-columns:repeat(2,1fr)}.ltc-metric-value{font-size:2rem!important}.ltc-actions{flex-direction:column}.ltc-action-reset{margin-left:0}}@media (min-width:641px) and (max-width:768px){.ltc-grid-3{grid-template-columns:repeat(2,1fr)}.ltc-secondary-metrics{grid-template-columns:repeat(2,1fr)}}@media (min-width:769px){.ltc-secondary-metrics{grid-template-columns:repeat(3,1fr)}}