.calc-root{--calc-green: #2D6A4F;--calc-green-dark: #1B4332;--calc-green-light: #40916C;--calc-dark: #1B1B1B;--calc-gray-bg: #F5F5F5;--calc-gray-border: #E5E7EB;--calc-gray-text: #6B7280;--calc-radius: 14px;--calc-radius-lg: 20px;background:#fff;border:1px solid var(--calc-gray-border);border-radius:var(--calc-radius-lg);padding:24px;font-family:Inter,system-ui,-apple-system,sans-serif;color:var(--calc-dark);box-shadow:0 1px 2px #00000008;max-width:760px;margin:0 auto}@media(min-width:768px){.calc-root{padding:36px}}.calc-progress{display:flex;align-items:center;gap:12px;margin-bottom:24px}.calc-progress__bar{flex:1;height:6px;background:var(--calc-gray-bg);border-radius:999px;overflow:hidden}.calc-progress__fill{height:100%;background:var(--calc-green);border-radius:999px;width:0%;transition:width .25s ease}.calc-progress__label{font-size:13px;color:var(--calc-gray-text);white-space:nowrap;font-weight:600}.calc-step{display:none}.calc-root[data-step="0"] .calc-step[data-step="0"],.calc-root[data-step="1"] .calc-step[data-step="1"],.calc-root[data-step="2"] .calc-step[data-step="2"],.calc-root[data-step="3"] .calc-step[data-step="3"],.calc-root[data-step="4"] .calc-step[data-step="4"],.calc-root[data-step=success] .calc-step[data-step=success],.calc-root[data-step=error] .calc-step[data-step=error]{display:block}.calc-root[data-step="0"] .calc-progress,.calc-root[data-step=success] .calc-progress,.calc-root[data-step=error] .calc-progress{display:none}.calc-h2{font-size:22px;font-weight:700;margin:0 0 8px;line-height:1.3;outline:none}.calc-h2:focus-visible{outline:2px solid var(--calc-green);outline-offset:4px;border-radius:4px}@media(min-width:768px){.calc-h2{font-size:26px}}.calc-lead{color:var(--calc-gray-text);margin:0 0 24px;font-size:15px;line-height:1.5}.calc-field{margin-bottom:20px}.calc-label{display:block;font-weight:700;font-size:14px;margin-bottom:10px;color:var(--calc-dark)}.calc-required{color:#dc2626;margin-left:2px}.calc-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}@media(min-width:640px){.calc-options{grid-template-columns:repeat(3,minmax(0,1fr))}}.calc-options--wide{grid-template-columns:repeat(1,minmax(0,1fr))}@media(min-width:640px){.calc-options--wide{grid-template-columns:repeat(2,minmax(0,1fr))}}.calc-option{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;padding:12px 14px;border:2px solid var(--calc-gray-border);border-radius:var(--calc-radius);background:#fff;cursor:pointer;font-size:14px;font-weight:600;color:var(--calc-dark);transition:border-color .15s,background .15s,color .15s;min-height:48px;-webkit-user-select:none;-moz-user-select:none;user-select:none}.calc-option:hover{border-color:var(--calc-green-light)}.calc-option input{position:absolute;opacity:0;pointer-events:none;width:0;height:0}.calc-option--checked{border-color:var(--calc-green);background:#2d6a4f0f;color:var(--calc-green-dark)}.calc-error-msg{display:none;margin-top:8px;color:#dc2626;font-size:13px;font-weight:600}.calc-error-msg--visible{display:block}.calc-input,.calc-textarea{width:100%;box-sizing:border-box;padding:12px 14px;border:2px solid var(--calc-gray-border);border-radius:var(--calc-radius);font:inherit;background:#fff;color:var(--calc-dark);transition:border-color .15s,box-shadow .15s}.calc-input:focus,.calc-textarea:focus{outline:none;border-color:var(--calc-green);box-shadow:0 0 0 4px #2d6a4f1a}.calc-textarea{resize:vertical;min-height:80px}.calc-grid-2{display:grid;grid-template-columns:1fr;gap:16px}@media(min-width:640px){.calc-grid-2{grid-template-columns:1fr 1fr}}.calc-grid-2 .calc-full{grid-column:1 / -1}.calc-checkbox{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-size:13px;color:var(--calc-gray-text);line-height:1.5}.calc-checkbox input{flex-shrink:0;width:20px;height:20px;margin-top:1px;accent-color:var(--calc-green)}.calc-checkbox a{color:var(--calc-green);text-decoration:underline}.calc-nav{display:flex;gap:12px;margin-top:28px}.calc-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:16px;font-weight:700;font-size:15px;cursor:pointer;transition:background .15s,color .15s,transform .05s;border:none;min-height:52px}.calc-btn:active{transform:translateY(1px)}.calc-btn--primary{background:var(--calc-green);color:#fff}.calc-btn--primary:hover{background:var(--calc-green-dark)}.calc-btn--primary:disabled{opacity:.55;cursor:not-allowed}.calc-btn--secondary{background:var(--calc-gray-bg);color:var(--calc-dark);flex:0 0 auto;padding:14px 18px}.calc-btn--secondary:hover{background:#e5e7eb}.calc-btn--big{width:100%;padding:18px 24px;font-size:17px;min-height:58px}.calc-intro{text-align:center;padding:16px 0 8px}.calc-intro__title{font-size:24px;font-weight:800;margin:0 0 12px;line-height:1.25}@media(min-width:768px){.calc-intro__title{font-size:30px}}.calc-intro__sub{color:var(--calc-gray-text);margin:0 0 24px;font-size:15px;line-height:1.5}.calc-bullets{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:8px;text-align:left}.calc-bullets li{padding-left:28px;position:relative;color:var(--calc-dark);font-size:14px;line-height:1.5}.calc-bullets li:before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;background:var(--calc-green);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.calc-richtpreis{background:linear-gradient(135deg,#2d6a4f14,#40916c0a);border:2px solid var(--calc-green);border-radius:var(--calc-radius-lg);padding:20px 24px;margin-bottom:24px;text-align:center}.calc-richtpreis__label{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--calc-green);margin-bottom:4px}.calc-richtpreis__price{font-size:32px;font-weight:800;color:var(--calc-green-dark);line-height:1.1;margin:4px 0}@media(min-width:768px){.calc-richtpreis__price{font-size:40px}}.calc-richtpreis__note{font-size:13px;color:var(--calc-gray-text);margin:6px 0 0;line-height:1.4}.calc-success,.calc-error{text-align:center;padding:24px 8px}.calc-success__icon{font-size:48px;margin-bottom:8px;line-height:1}.calc-success__title{font-size:22px;font-weight:800;margin:0 0 8px;color:var(--calc-green-dark)}.calc-success__text{color:var(--calc-gray-text);margin:0 0 18px;line-height:1.5}.calc-success__price{display:inline-block;background:var(--calc-gray-bg);border-radius:12px;padding:10px 18px;font-weight:700;color:var(--calc-dark)}.calc-hp{position:absolute;left:-9999px;opacity:0;pointer-events:none}.calc-step__hint{font-size:12px;color:var(--calc-gray-text);margin:-4px 0 16px}