/* ===== CALCULATOR ===== */
.calculator-section { background: var(--color-dark); color: var(--color-white); display: none; }
.calculator-section .section-label { color: var(--color-primary); }
.calculator-section .section-title { color: var(--color-white); }
.calculator-section .section-desc { color: var(--color-gray-400); }

.calc-wrap { background: var(--color-darker); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg); padding: 48px; max-width: 1000px; margin: 0 auto; }

.calc-progress { display: flex; align-items: center; justify-content: center; gap: 0; margin-bottom: 48px; }
.calc-progress-step { display: flex; flex-direction: column; align-items: center; gap: 8px; position: relative; }
.calc-step-num { width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,0.1); border: 2px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-weight: 700; font-size: 16px; color: var(--color-gray-400); transition: var(--transition); }
.calc-progress-step span { font-size: 12px; font-family: var(--font-heading); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-gray-600); transition: var(--transition); }
.calc-progress-step.active .calc-step-num { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-white); box-shadow: var(--shadow-glow); }
.calc-progress-step.active span { color: var(--color-white); }
.calc-progress-step.done .calc-step-num { background: rgba(230,57,70,0.3); border-color: var(--color-primary); color: var(--color-primary); }
.calc-progress-line { flex: 1; height: 2px; background: rgba(255,255,255,0.1); min-width: 60px; margin: 0 12px; margin-bottom: 26px; transition: background 0.4s ease; }
.calc-progress-line.active { background: var(--color-primary); }

.calc-step { display: none; }
.calc-step.active { display: block; animation: calcFadeIn 0.35s ease; }
@keyframes calcFadeIn { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }
.calc-step-title { font-size: 22px; font-weight: 700; color: var(--color-white); margin-bottom: 28px; text-align: center; }

.calc-services-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-bottom: 32px; }
.calc-service-card { background: rgba(255,255,255,0.04); border: 2px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 20px 16px; text-align: center; cursor: pointer; transition: var(--transition); position: relative; user-select: none; }
.calc-service-card:hover { border-color: rgba(230,57,70,0.5); background: rgba(230,57,70,0.07); transform: translateY(-3px); }
.calc-service-card.selected { border-color: var(--color-primary); background: rgba(230,57,70,0.12); box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-glow); }
.calc-service-icon { width: 52px; height: 52px; background: rgba(230,57,70,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--color-primary); margin: 0 auto 14px; transition: var(--transition); }
.calc-service-card.selected .calc-service-icon { background: var(--color-primary); color: var(--color-white); }
.calc-service-card h4 { font-size: 14px; font-weight: 700; color: var(--color-white); margin-bottom: 6px; line-height: 1.3; }
.calc-service-card p { font-size: 12px; color: var(--color-gray-400); line-height: 1.4; }
.calc-check { position: absolute; top: 10px; right: 10px; width: 22px; height: 22px; background: var(--color-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; color: var(--color-white); opacity: 0; transform: scale(0.5); transition: var(--transition); }
.calc-service-card.selected .calc-check { opacity: 1; transform: scale(1); }

.calc-nav { display: flex; align-items: center; justify-content: space-between; margin-top: 32px; gap: 16px; }
.calc-nav-bottom { margin-top: 24px; justify-content: flex-start; }
.calc-hint { font-size: 14px; color: var(--color-gray-600); transition: var(--transition); }

.calc-param-block { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-md); padding: 28px; margin-bottom: 20px; }
.calc-param-title { font-size: 17px; font-weight: 700; color: var(--color-white); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.calc-param-title i { color: var(--color-primary); }

.calc-options { display: flex; flex-wrap: wrap; gap: 12px; }
.calc-option-label { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-sm); padding: 12px 16px; cursor: pointer; transition: var(--transition); min-width: 200px; flex: 1; }
.calc-option-label:hover { border-color: rgba(230,57,70,0.5); }
.calc-option-label input:checked ~ .calc-option-custom { background: var(--color-primary); border-color: var(--color-primary); }
.calc-option-label:has(input:checked) { border-color: var(--color-primary); background: rgba(230,57,70,0.1); }
.calc-option-custom { width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.3); border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: var(--transition); position: relative; }
.calc-option-custom::after { content: ''; width: 8px; height: 8px; background: var(--color-white); border-radius: 50%; opacity: 0; transition: var(--transition); }
.calc-option-text { flex: 1; font-size: 14px; color: var(--color-white); font-weight: 500; }
.calc-option-price { font-size: 13px; color: var(--color-primary); font-family: var(--font-heading); font-weight: 700; white-space: nowrap; }
.calc-options-small .calc-option-label { min-width: 140px; }
.calc-option-disabled { opacity: 0.45; pointer-events: none; cursor: not-allowed; border-style: dashed !important; }
.calc-option-disabled .calc-option-text { text-decoration: line-through; }

.calc-extra-wrap { margin-top: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.calc-extra-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-gray-400); margin-bottom: 12px; }

.calc-counter-wrap { display: flex; align-items: center; gap: 20px; margin-top: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); flex-wrap: wrap; }
.calc-counter-label { font-size: 14px; font-weight: 600; color: var(--color-gray-300); }
.calc-counter-controls { display: flex; align-items: center; gap: 0; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-sm); overflow: hidden; }
.calc-counter-btn { width: 40px; height: 40px; background: none; border: none; color: var(--color-white); font-size: 20px; cursor: pointer; transition: var(--transition); font-family: var(--font-heading); }
.calc-counter-btn:hover { background: rgba(230,57,70,0.2); color: var(--color-primary); }
.calc-counter-input { width: 52px; text-align: center; background: none; border: none; border-left: 1px solid rgba(255,255,255,0.1); border-right: 1px solid rgba(255,255,255,0.1); color: var(--color-white); font-family: var(--font-heading); font-size: 16px; font-weight: 700; padding: 8px 4px; -moz-appearance: textfield; }
.calc-counter-input::-webkit-outer-spin-button, .calc-counter-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.calc-live-total { display: flex; align-items: center; justify-content: space-between; background: rgba(230,57,70,0.1); border: 1px solid rgba(230,57,70,0.3); border-radius: var(--radius-sm); padding: 16px 20px; margin-top: 24px; font-size: 15px; color: var(--color-gray-300); }
.calc-live-total strong { font-family: var(--font-heading); font-size: 22px; font-weight: 800; color: var(--color-primary); }

.calc-result-wrap { display: grid; grid-template-columns: 1fr 380px; gap: 36px; align-items: start; }
.calc-result-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.calc-result-table th { text-align: left; padding: 12px 16px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-gray-400); border-bottom: 2px solid rgba(255,255,255,0.1); font-family: var(--font-heading); }
.calc-result-table td { padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,0.07); font-size: 14px; color: var(--color-gray-300); vertical-align: top; }
.calc-result-table tfoot td { border-bottom: none; padding-top: 18px; font-size: 16px; color: var(--color-white); }
.calc-result-price { font-family: var(--font-heading); font-weight: 700; color: var(--color-primary); white-space: nowrap; }
.calc-total-price { font-family: var(--font-heading); font-size: 24px; font-weight: 900; color: var(--color-primary); }
.calc-result-detail { color: var(--color-gray-400); font-size: 13px; line-height: 1.6; }
.calc-disclaimer { font-size: 13px; color: var(--color-gray-600); margin-bottom: 20px; }
.calc-disclaimer i { color: var(--color-primary); margin-right: 6px; }
.calc-reset-btn { font-size: 14px; }

.calc-form-wrap { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); padding: 28px; }
.calc-form-wrap h4 { font-size: 18px; font-weight: 700; color: var(--color-white); margin-bottom: 6px; }
.calc-form-wrap > p { font-size: 14px; color: var(--color-gray-400); margin-bottom: 24px; }

.form-status-success { background: rgba(46,204,113,0.15); border: 1px solid rgba(46,204,113,0.4); color: #2ECC71; padding: 16px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; margin-top: 16px; display: block; }
.form-status-error { background: rgba(230,57,70,0.1); border: 1px solid rgba(230,57,70,0.3); color: #ff6b7a; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-top: 12px; display: block; }

/* ===== CALCULATOR RESPONSIVE ===== */
@media (max-width: 1024px) {
    .calc-services-grid { grid-template-columns: repeat(4,1fr); }
    .calc-result-wrap { grid-template-columns: 1fr; }
    .calc-form-wrap { max-width: 600px; }
}
@media (max-width: 768px) {
    .calc-wrap { padding: 28px 20px; }
    .calc-services-grid { grid-template-columns: repeat(2,1fr); gap: 12px; }
    .calc-service-card { padding: 16px 12px; }
    .calc-service-card h4 { font-size: 13px; }
    .calc-progress-line { min-width: 30px; }
    .calc-progress-step span { font-size: 11px; }
    .calc-option-label { min-width: 100%; }
    .calc-options-small .calc-option-label { min-width: 140px; }
    .calc-nav { flex-direction: column-reverse; align-items: stretch; }
    .calc-nav .btn { text-align: center; }
    .calc-hint { text-align: center; }
    .calc-step-title { font-size: 18px; }
    .calc-live-total { flex-direction: column; gap: 6px; text-align: center; }
}
@media (max-width: 480px) {
    .calc-services-grid { grid-template-columns: repeat(2,1fr); }
    .calc-param-block { padding: 20px 16px; }
    .calc-result-table th:nth-child(2), .calc-result-table td:nth-child(2) { display: none; }
}