.energy-calc-page{max-width:1400px;margin:0 auto;padding:0 1rem 3rem}.energy-calc-hero-wrap{width:100vw;max-width:100%;margin-bottom:2rem;margin-left:50%;transform:translate(-50%)}.energy-calc-hero{text-align:center;background:linear-gradient(135deg,var(--accent)0%,color-mix(in srgb,var(--accent)70%,var(--surface-gradient-dark))100%);border-radius:0;justify-content:center;align-items:center;min-height:200px;display:flex;position:relative;overflow:hidden}.energy-calc-hero__overlay{background:linear-gradient(135deg,var(--accent)0%,transparent 50%,color-mix(in srgb,var(--accent)65%,var(--surface-gradient-darker))100%);opacity:.9;pointer-events:none;position:absolute;inset:0}.energy-calc-hero__content{z-index:1;padding:40px 24px;position:relative}.energy-calc-hero__icon-wrap{background:#fff3;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;margin:0 auto 1rem;display:flex}.energy-calc-hero__icon{color:#fff;width:28px;height:28px}.energy-calc-hero__title{color:#fff;text-shadow:0 1px 3px #0003;margin:0 0 .5rem;font-size:clamp(1.35rem,3.5vw,1.75rem);font-weight:700}.energy-calc-hero__tagline{color:#ffffffeb;max-width:480px;margin:0 auto;font-size:.9375rem}.energy-calc-body{max-width:520px;margin:0 auto}.energy-calc-card{margin-bottom:1.5rem}.energy-calc-card__hint{color:var(--muted);margin:0 0 1.25rem;font-size:.9375rem;line-height:1.5}.energy-calc-form{flex-wrap:wrap;align-items:flex-end;gap:1rem;margin-bottom:1rem;display:flex}.energy-calc-form--single{margin-bottom:1rem}.energy-calc-form__field{flex:1;min-width:120px}.energy-calc-form__field .input{width:100%}.energy-calc-form__divider{color:var(--muted);padding-bottom:.5rem;font-size:1.5rem;font-weight:600}.energy-calc-formula{background:var(--muted-bg);border-radius:8px;align-items:baseline;gap:.5rem;margin-bottom:1rem;padding:.75rem 1rem;display:flex}.energy-calc-formula__result{color:var(--text);font-size:1.25rem;font-weight:700}.energy-calc-formula__unit{color:var(--muted);font-size:.875rem}.energy-calc-mode-switch{font-size:.875rem}.energy-calc-result-card{margin-bottom:1.5rem}.energy-calc-result{flex-wrap:wrap;align-items:center;gap:.5rem 1rem;margin-bottom:1.25rem;display:flex}.energy-calc-result__label{color:var(--muted);font-size:.9375rem}.energy-calc-result__class{font-size:1.75rem;font-weight:700}.energy-calc-result__detail{color:var(--muted);font-size:.9375rem}.energy-calc-scale{pointer-events:none;border-radius:8px;width:100%;display:flex;overflow:hidden}.energy-calc-scale__segment{color:#fff;text-align:center;text-shadow:0 1px 1px #0006;flex:1;padding:.5rem .25rem;font-size:.65rem;font-weight:700;transition:opacity .2s}.energy-calc-scale__segment--active{opacity:1;box-shadow:inset 0 0 0 2px #fff}.energy-calc-scale__segment:not(.energy-calc-scale__segment--active){opacity:.85}.energy-calc-how-wrap{margin-top:2rem}.energy-calc-how-wrap .accordion{box-shadow:0 2px 12px var(--overlay-black-006);border-radius:12px;overflow:hidden}.energy-calc-how__h{color:var(--text);margin:1rem 0 .5rem;font-size:.9375rem;font-weight:600}.energy-calc-how__h:first-of-type{margin-top:0}.energy-calc-how__table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.875rem}.energy-calc-how__table th,.energy-calc-how__table td{text-align:left;border-bottom:1px solid var(--border);padding:.5rem .75rem}.energy-calc-how__table th{color:var(--muted);font-weight:600}.energy-calc-how__class{font-weight:600}.energy-calc-how__source{color:var(--muted);margin:.5rem 0 0;font-size:.8125rem}@media (max-width:600px){.energy-calc-hero{min-height:180px}.energy-calc-hero__content{padding:32px 20px}.energy-calc-hero__icon-wrap{width:48px;height:48px;margin-bottom:.75rem}.energy-calc-hero__icon{width:24px;height:24px}.energy-calc-form{flex-direction:column;align-items:stretch}.energy-calc-form__divider{text-align:center;padding:0}.energy-calc-scale__segment{padding:.4rem .15rem;font-size:.55rem}}