.calculator-section { background: #fff; }
.calculator-shell { padding: 42px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); box-shadow: 0 20px 55px rgba(6,21,36,.08); }
.calculator-head { display: flex; align-items: end; justify-content: space-between; gap: 35px; margin-bottom: 30px; }
.calculator-head h2, .calculator-head .display-heading { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); }
.calculator-head p { max-width: 460px; margin: 0; color: var(--muted); font-size: .8rem; }
.calculator-note { display: flex; padding: 12px 15px; align-items: center; gap: 10px; border-left: 3px solid var(--red); background: #fff; color: var(--muted); font-size: .72rem; }
.calculator-filters { display: flex; flex-wrap: wrap; gap: 7px; margin: 26px 0; }
.calculator-filter { padding: 8px 12px; border: 1px solid var(--line); border-radius: 99px; background: #fff; color: #405464; font-size: .69rem; }
.calculator-filter:hover, .calculator-filter.is-active { border-color: var(--navy); background: var(--navy); color: #fff; }
.calculator-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.calculator-card { position: relative; min-height: 142px; padding: 19px; border: 1px solid var(--line); border-radius: 7px; background: #fff; cursor: pointer; transition: .2s ease; }
.calculator-card:hover { border-color: #92cee1; transform: translateY(-2px); }
.calculator-card.is-selected { border-color: var(--red); box-shadow: inset 0 0 0 1px var(--red); }
.calculator-card__tag { display: inline-block; margin-bottom: 9px; color: #66808f; font-size: .6rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.calculator-card h3 { max-width: 85%; margin-bottom: 16px; font-size: .84rem; line-height: 1.35; }
.calculator-card h3 a:hover { color: var(--red); text-decoration: underline; text-underline-offset: 3px; }
.calculator-card__bottom { display: flex; align-items: end; justify-content: space-between; gap: 10px; }
.calculator-card__price { color: var(--navy); font-size: .72rem; font-weight: 700; }
.calculator-card input { width: 50px; height: 32px; padding: 0 5px; border: 1px solid var(--line); border-radius: 4px; text-align: center; }
.calculator-summary { display: grid; margin-top: 22px; padding: 27px; grid-template-columns: 1fr auto; gap: 25px; border-radius: 8px; background: var(--ink); color: #fff; }
.calculator-summary h3 { margin-bottom: 12px; color: #fff; font-size: 1rem; }
.calculator-selection { margin: 0; padding: 0; list-style: none; }
.calculator-selection li { display: flex; max-width: 620px; padding: 6px 0; justify-content: space-between; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.66); font-size: .7rem; }
.calculator-total { min-width: 230px; text-align: right; }
.calculator-total small { display: block; color: rgba(255,255,255,.45); font-size: .62rem; text-transform: uppercase; }
.calculator-total strong { display: block; margin: 5px 0 17px; color: var(--cyan); font: 800 1.75rem "Manrope", sans-serif; }
.calculator-actions { display: flex; justify-content: flex-end; gap: 8px; }
.calculator-actions button { min-height: 42px; padding: 0 15px; border: 1px solid rgba(255,255,255,.18); border-radius: 4px; background: transparent; color: #fff; font-size: .7rem; font-weight: 700; }
.calculator-actions .calculator-offer { border-color: var(--red); background: var(--red); }
.calculator-empty { color: rgba(255,255,255,.46); font-size: .72rem; }
@media (max-width: 850px) { .calculator-grid { grid-template-columns: 1fr 1fr; } .calculator-head { display: block; } .calculator-head p { margin-top: 14px; } .calculator-summary { grid-template-columns: 1fr; } .calculator-total { text-align: left; } .calculator-actions { justify-content: flex-start; } }
@media (max-width: 600px) { .calculator-shell { padding: 27px 16px; border-right: 0; border-left: 0; border-radius: 0; } .calculator-section .container { width: 100%; } .calculator-head, .calculator-note, .calculator-filters { margin-right: 14px; margin-left: 14px; } .calculator-grid { grid-template-columns: 1fr; } .calculator-summary { padding: 22px 18px; border-radius: 0; } .calculator-actions { align-items: stretch; flex-direction: column; } }