:root{--dac-primary:#0072ce;--dac-primary-deep:#005fa3;--dac-secondary:#00a86b;--dac-secondary-light:#e6f0ff;--dac-danger:#e74c3c;--dac-bg:#f7f9fb;--dac-white:#ffffff;--dac-text:#26282c;--dac-border:#d8dce2;--dac-radius:8px;--dac-spacing:1.5rem;--dac-gap:0.6rem;--dac-text-muted:#6b7280;--dac-text-light:#9ca3af;--dac-card-shadow:0 2px 12px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.05);--dac-card-shadow-hover:0 8px 32px rgba(0, 114, 206, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);--dac-transition:0.22s cubic-bezier(0.4, 0, 0.2, 1);--dac-stage-puppy:#f59e0b;--dac-stage-young:#10b981;--dac-stage-adult:#0072ce;--dac-stage-senior:#8b5cf6;--dac-stage-geriatric:#ef4444}*{box-sizing:border-box;margin:0;padding:0}.dac-header{text-align:center;padding:1.5rem 1rem;position:relative;border:1px solid var(--dac-border);border-radius:var(--dac-radius);background:var(--dac-white);box-shadow:var(--dac-card-shadow);margin-bottom:1.5rem}.dac-paw-icon{font-size:2.8rem!important;display:block;margin-bottom:.5rem;animation:dac-bounce 2s ease-in-out infinite}@keyframes dac-bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}.dac-header__title{font-size:clamp(1.8rem, 5vw, 2.3rem)!important;font-weight:800!important;color:var(--dac-text);line-height:1.15;letter-spacing:-.02em}.dac-header__title span{color:var(--dac-primary)!important;display:inline-block}.dac-header__subtitle{font-size:0.95rem!important;color:var(--dac-text-muted)!important;margin-top:.75rem;max-width:480px;margin-left:auto;margin-right:auto;line-height:1.5}.dac-header__badge{margin-top:1rem}.dac-badge{display:inline-block;background:var(--dac-secondary-light);color:var(--dac-primary-deep);font-size:0.72rem!important;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:.3em .9em;border-radius:100px;border:1px solid rgb(0 114 206 / .2)}.dac-main{display:flex;flex-direction:column;gap:1.25rem}.dac-card{background:var(--dac-white);border-radius:var(--dac-radius);border:1px solid var(--dac-border);box-shadow:var(--dac-card-shadow);overflow:hidden;transition:box-shadow var(--dac-transition)}.dac-card:hover{box-shadow:var(--dac-card-shadow-hover)}.dac-card__body{padding:var(--dac-spacing) var(--dac-spacing) 1.75rem;display:flex;flex-direction:column;gap:1.5rem}.dac-field{display:flex;flex-direction:column;gap:.55rem}.dac-label{font-size:0.88rem!important;font-weight:600;color:var(--dac-text);display:flex;align-items:center;gap:.4rem;letter-spacing:.01em}.dac-label__icon{font-size:1em}.dac-label__optional{font-weight:400;color:var(--dac-text-light);font-size:0.8rem!important}.dac-input{width:100%;padding:.75rem 1rem;border:1px solid var(--dac-border)!important;border-radius:var(--dac-radius);font-size:0.97rem!important;color:var(--dac-text);background:var(--dac-bg)!important;outline:none;transition:border-color var(--dac-transition),box-shadow var(--dac-transition),background var(--dac-transition)}.dac-input:focus{border-color:var(--dac-primary);background:var(--dac-white);box-shadow:0 0 0 3px rgb(0 114 206 / .12)}.dac-input::placeholder{color:var(--dac-text-light)}.dac-input--number{width:90px;text-align:center;font-size:1.15rem!important;font-weight:600;padding:.7rem .6rem}.dac-input--number::-webkit-inner-spin-button,.dac-input--number::-webkit-outer-spin-button{opacity:.4}.dac-age-row{display:flex;align-items:center;gap:var(--dac-gap);flex-wrap:wrap}.dac-age-group{display:flex;align-items:center;gap:.4rem}.dac-age-unit{font-size:0.85rem!important;font-weight:500;color:var(--dac-text-muted);white-space:nowrap}.dac-age-sep{font-size:1.2rem!important;color:var(--dac-text-light);font-weight:300}.dac-size-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.55rem}.dac-size-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;padding:.85rem .4rem;border:1px solid var(--dac-border)!important;border-radius:var(--dac-radius);cursor:pointer;transition:border-color var(--dac-transition),background var(--dac-transition),transform var(--dac-transition),box-shadow var(--dac-transition);background:var(--dac-bg)!important;text-align:center;user-select:none}.dac-size-card:hover{border-color:var(--dac-primary)!important;background:var(--dac-secondary-light)!important;transform:translateY(-1px)}.dac-size-radio{position:absolute;opacity:0;width:0;height:0;pointer-events:none}.dac-size-radio:checked~.dac-size-card__icon,.dac-size-card:has(.dac-size-radio:checked){border-color:var(--dac-primary)!important;background:var(--dac-secondary-light)}.dac-size-card.dac-size-card--active{border-color:var(--dac-primary)!important;background:var(--dac-secondary-light)!important;box-shadow:0 0 0 3px rgb(0 114 206 / .15)}.dac-size-card__icon{font-size:1.6rem!important;line-height:1}.dac-size-card__name{font-size:0.78rem!important;font-weight:700;color:var(--dac-text);letter-spacing:.01em}.dac-size-card__weight{font-size:0.68rem!important;color:var(--dac-text-muted);white-space:nowrap}.dac-method-toggle{display:flex;gap:.5rem;background:var(--dac-bg)!important;border:1px solid var(--dac-border)!important;border-radius:var(--dac-radius);padding:.3rem;width:fit-content}.dac-method-btn{display:flex;align-items:center;cursor:pointer;border-radius:var(--dac-radius);padding:.45rem 1rem;font-size:0.85rem!important;font-weight:600;color:var(--dac-text-muted)!important;transition:background var(--dac-transition),color var(--dac-transition),box-shadow var(--dac-transition);user-select:none}.dac-method-radio{position:absolute;opacity:0;width:0;height:0}.dac-method-btn:has(.dac-method-radio:checked),.dac-method-btn.dac-method-btn--active{background:var(--dac-white)!important;color:var(--dac-primary)!important;box-shadow:0 1px 4px rgb(0 0 0 / .1)}.dac-method-note{margin-top:var(--dac-gap);font-size:0.78rem!important;color:var(--dac-text-muted);line-height:1.5;padding:.6rem .8rem;background:var(--dac-secondary-light);border-radius:var(--dac-radius);border-left:3px solid var(--dac-primary);transition:all var(--dac-transition)}.dac-method-note strong{color:var(--dac-primary-deep)}.dac-method-note em{color:var(--dac-text);font-style:normal;font-size:0.82em!important}.dac-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.8rem 1.5rem;border:none;border-radius:var(--dac-radius);font-size:0.95rem!important;font-weight:600;cursor:pointer;text-decoration:none;transition:all var(--dac-transition);white-space:nowrap;position:relative;overflow:hidden}.dac-btn::after{content:"";position:absolute;inset:0;background:#fff0;transition:background var(--dac-transition)}.dac-btn:hover::after{background:rgb(255 255 255 / .12)}.dac-btn:active{transform:scale(.97)}.dac-btn__icon{font-size:1em}.dac-btn--calculate{background:linear-gradient(135deg,var(--dac-primary) 0%,var(--dac-primary-deep) 100%);color:var(--dac-white);width:100%;padding:1rem 1.5rem;font-size:1.05rem!important;letter-spacing:.01em;box-shadow:0 4px 16px rgb(0 114 206 / .3);border-radius:var(--dac-radius)}.dac-btn--calculate:hover{box-shadow:0 6px 24px rgb(0 114 206 / .45);transform:translateY(-1px)}.dac-btn--secondary{background:var(--dac-bg)!important;color:var(--dac-text)!important;border:1px solid var(--dac-border)!important;flex:1;box-shadow:var(--dac-card-shadow)}.dac-btn--secondary:hover{background:var(--dac-secondary-light)!important;border-color:var(--dac-primary)!important;color:var(--dac-primary)!important}.dac-btn--danger{background:var(--dac-danger)!important;color:var(--dac-white)!important;flex:1;box-shadow:0 2px 8px rgb(231 76 60 / .25)}.dac-btn--danger:hover{background:#c0392b!important;box-shadow:0 4px 16px rgb(231 76 60 / .4);transform:translateY(-1px)}.dac-error{padding:.75rem 1rem;background:#fff5f5!important;border:1px solid #fecaca;border-radius:var(--dac-radius);color:var(--dac-danger)!important;font-size:0.88rem!important;font-weight:500;display:flex;align-items:center;gap:.4rem}.dac-error::before{content:"⚠️"}.dac-card--result{animation:dac-slide-up 0.4s cubic-bezier(.34,1.56,.64,1)}@keyframes dac-slide-up{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.dac-result-header{background:linear-gradient(135deg,var(--dac-primary) 0%,var(--dac-primary-deep) 100%);padding:1.2rem var(--dac-spacing);color:var(--dac-white)}.dac-result-header__label{font-size:0.9rem!important;font-weight:500;opacity:.9}.dac-age-display{display:flex;align-items:center;justify-content:center;gap:1.5rem;padding:2rem var(--dac-spacing) 1rem;flex-wrap:wrap}.dac-age-display__human{display:flex;flex-direction:column;align-items:center}.dac-age-display__number{font-size:clamp(2rem, 10vw, 3rem)!important;font-weight:700;color:var(--dac-primary);line-height:1;transition:all var(--dac-transition)}.dac-age-display__unit{font-size:0.8rem!important;color:var(--dac-text-muted);font-weight:500;letter-spacing:.04em;text-transform:uppercase;margin-top:.2rem}.dac-age-display__divider{font-size:2rem!important;color:var(--dac-border);font-weight:300}.dac-age-display__dog{display:flex;flex-direction:column;align-items:center}.dac-age-display__dog-age{font-size:clamp(2rem, 10vw, 3rem)!important;font-weight:600;color:var(--dac-text);line-height:1}.dac-stage-banner{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.5rem;margin:0 var(--dac-spacing);border-radius:100px;font-weight:700;font-size:0.9rem!important;letter-spacing:.04em;text-transform:uppercase;transition:all var(--dac-transition)}.dac-stage-banner.dac-stage--puppy{background:rgb(245 158 11 / .12);color:#92400e;border:1px solid rgb(245 158 11 / .35)}.dac-stage-banner.dac-stage--young{background:rgb(16 185 129 / .12);color:#065f46;border:1px solid rgb(16 185 129 / .35)}.dac-stage-banner.dac-stage--adult{background:rgb(0 114 206 / .1);color:var(--dac-primary-deep);border:1px solid rgb(0 114 206 / .3)}.dac-stage-banner.dac-stage--senior{background:rgb(139 92 246 / .1);color:#5b21b6;border:1px solid rgb(139 92 246 / .3)}.dac-stage-banner.dac-stage--geriatric{background:rgb(239 68 68 / .1);color:#991b1b;border:1px solid rgb(239 68 68 / .3)}.dac-stage-icon{font-size:1.1em!important}.dac-progress-section{padding:1rem var(--dac-spacing) 0}.dac-progress-label{font-size:0.75rem!important;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--dac-text-muted);margin-bottom:.6rem}.dac-progress-track{height:10px;background:var(--dac-border);border-radius:100px;overflow:visible;position:relative;margin-bottom:1.8rem}.dac-progress-fill{height:100%;border-radius:100px;background:linear-gradient(90deg,var(--dac-stage-puppy),var(--dac-stage-young),var(--dac-stage-adult),var(--dac-stage-senior),var(--dac-stage-geriatric));transition:width 0.7s cubic-bezier(.34,1.56,.64,1);width:0%;position:relative}.dac-progress-fill::after{content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);width:14px;height:14px;border-radius:50%;background:var(--dac-white);border:3px solid var(--dac-primary);box-shadow:0 2px 6px rgb(0 0 0 / .2)}.dac-progress-stages{position:absolute;top:16px;left:0;right:0;height:0}.dac-progress-stage-mark{position:absolute;transform:translateX(-50%);font-size:0.65rem!important;font-weight:600;color:var(--dac-text-muted);white-space:nowrap}.dac-breakdown{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;padding:1rem var(--dac-spacing)}.dac-breakdown__item{display:flex;flex-direction:column;gap:.15rem;padding:.85rem 1rem;background:var(--dac-bg);border-radius:var(--dac-radius);border:1px solid var(--dac-border)}.dac-breakdown__icon{font-size:1.1rem!important}.dac-breakdown__key{font-size:0.72rem!important;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--dac-text-muted)}.dac-breakdown__val{font-size:0.92rem!important;font-weight:700;color:var(--dac-text)}.dac-tips{margin-inline:var(--dac-spacing);padding:1rem;margin-bottom:1rem;background:linear-gradient(135deg,#f0fdf4 0%,#ecfdf5 100%);border-radius:var(--dac-radius);border:1px solid rgb(16 185 129 / .25)}.dac-tips__title{font-size:0.82rem!important;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:#065f46;margin-bottom:.65rem}.dac-tips__list{list-style:none;display:flex;flex-direction:column;gap:.4rem}.dac-tips__list li{font-size:0.88rem!important;color:#1f2937;display:flex;align-items:flex-start;gap:.5rem}.dac-tips__list li::before{content:"✓";color:var(--dac-secondary);font-weight:700;flex-shrink:0;margin-top:.05em}.dac-compare{margin-inline:var(--dac-spacing);margin-bottom:1rem;padding:1rem;background:var(--dac-bg);border-radius:var(--dac-radius);border:1px solid var(--dac-border)}.dac-compare__title{font-size:0.82rem!important;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--dac-text-muted);margin-bottom:.75rem}.dac-compare__grid{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;margin-bottom:.6rem}.dac-compare__item{display:flex;flex-direction:column;gap:.25rem;padding:.7rem .8rem;border-radius:var(--dac-radius);background:var(--dac-white);border:1px solid var(--dac-border)}.dac-compare__item.dac-compare--active{border-color:var(--dac-primary);background:var(--dac-secondary-light)}.dac-compare__method{font-size:.73rem;font-weight:600;color:var(--dac-text-muted)}.dac-compare__value{font-size:1.05rem!important;font-weight:700;color:var(--dac-primary)}.dac-compare__note{font-size:0.75rem!important;color:var(--dac-text-muted);line-height:1.45}.dac-actions{display:flex;gap:.6rem;padding:1.25rem var(--dac-spacing);border-top:1px solid var(--dac-border);flex-wrap:wrap}.dac-toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:#1a1a1a;color:var(--dac-white);padding:.7rem 1.4rem;border-radius:100px;font-size:0.88rem!important;font-weight:600;z-index:1000;transition:transform 0.35s cubic-bezier(.34,1.56,.64,1),opacity 0.35s;opacity:0;pointer-events:none;white-space:nowrap}.dac-toast.dac-toast--visible{transform:translateX(-50%) translateY(0);opacity:1}.dac-modal-overlay{position:fixed;inset:0;background:rgb(0 0 0 / .45);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:1rem;animation:dac-fade-in 0.2s ease}@keyframes dac-fade-in{from{opacity:0}to{opacity:1}}.dac-modal{background:var(--dac-white);border-radius:var(--dac-radius);padding:2rem;max-width:380px;width:100%;text-align:center;box-shadow:0 20px 60px rgb(0 0 0 / .25);animation:dac-slide-up 0.3s cubic-bezier(.34,1.56,.64,1)}.dac-modal__icon{font-size:2.5rem!important;margin-bottom:.75rem}.dac-modal__title{font-size:1.4rem!important;font-weight:700;margin-bottom:.5rem}.dac-modal__body{font-size:0.9rem!important;color:var(--dac-text-muted);margin-bottom:1.5rem;line-height:1.55}.dac-modal__actions{display:flex;gap:.75rem}@media (max-width:600px){.dac-card__body{padding:1.25rem 1rem 1.5rem}.dac-size-grid{grid-template-columns:repeat(2,1fr)}.dac-breakdown{grid-template-columns:1fr 1fr}.dac-compare__grid{grid-template-columns:1fr 1fr}.dac-actions{flex-direction:column}.dac-actions .dac-btn{flex:unset;width:100%}.dac-method-toggle{flex-wrap:wrap;width:100%}.dac-method-btn{flex:1;justify-content:center}.dac-age-display{gap:.75rem}.dac-age-display__divider{font-size:1.4rem!important}}@media (max-width:380px){.dac-size-grid{grid-template-columns:repeat(2,1fr)}.dac-breakdown{grid-template-columns:1fr}.dac-compare__grid{grid-template-columns:1fr}}[hidden]{display:none!important}.dac-btn:focus-visible,.dac-input:focus-visible,.dac-size-card:focus-within{outline:3px solid var(--dac-primary);outline-offset:2px}