* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f0f2f5;
  color: #1a1a2e;
  min-height: 100vh;
  padding: 30px 16px;
}

.calculator {
  max-width: 600px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
}

h1 {
  font-size: 26px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 6px;
}

.subtitle {
  font-size: 15px;
  color: #666;
  margin-bottom: 0;
}

.field {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #333;
  margin-bottom: 7px;
}

.field-note-top {
  font-size: 13px;
  color: #888;
  margin-bottom: 7px;
}

.field-note {
  font-size: 12px;
  color: #888;
  margin-top: 6px;
  line-height: 1.5;
}

.note {
  display: block;
  font-size: 12px;
  color: #999;
  font-weight: 400;
  margin-top: 2px;
}

select,
input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  color: #1a1a2e;
  background: #fafafa;
  transition: border-color 0.2s;
  appearance: none;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  white-space: normal;
}

select option {
  white-space: normal;
  word-wrap: break-word;
}

/* ПРАВКА 3: при фокусі — синя рамка, не червона */
select:focus,
input:focus {
  outline: none;
  border-color: #3498db;
  background: #fff;
}

::placeholder {
  color: #bbb;
  font-style: italic;
}

select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Червона рамка — тільки при помилці валідації після кнопки "Розрахувати" */
.field-error {
  border-color: #c0392b !important;
  background: #fff5f5 !important;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 500;
  cursor: pointer;
  font-size: 14px;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

#modelPhoto {
  border: 1.5px solid #eee;
}

.included-block {
  margin-top: 10px;
  padding: 10px 14px;
  background: #f0f7ff;
  border-radius: 8px;
  font-size: 13px;
  color: #444;
  line-height: 1.6;
  border-left: 3px solid #3498db;
}

button#calculateBtn {
  width: 100%;
  padding: 14px;
  background: #c0392b;
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s;
}

button#calculateBtn:hover {
  background: #a93226;
}

button#calculateBtn:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.btn-reset {
  width: 100%;
  padding: 13px;
  background: transparent;
  color: #4a6cf7;
  font-size: 15px;
  font-weight: 500;
  border: 1.5px solid #4a6cf7;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.2s;
}

.btn-reset:hover {
  background: #f0f4ff;
  border-color: #1a2a5e;
  color: #1a2a5e;
}

.result {
  margin-top: 28px;
  padding: 24px;
  background: #f8f9fa;
  border-radius: 12px;
  border-left: 4px solid #c0392b;
}

.result.hidden {
  display: none;
}

.result h2 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #1a1a2e;
}

.preliminary-note {
  font-size: 13px;
  color: #e67e22;
  margin-bottom: 14px;
  font-weight: 500;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  font-size: 15px;
  border-bottom: 1px solid #eee;
  gap: 12px;
}

/* ПРАВКА 5: пропорції колонок на мобілі — ліва 45%, права 55% */
.result-row span:first-child {
  flex: 0 0 45%;
  max-width: 45%;
}

.result-row span:last-child {
  text-align: right;
  flex: 0 0 55%;
  max-width: 55%;
}

.result-row:last-child {
  border-bottom: none;
}

.result-row.total {
  font-weight: 700;
  font-size: 18px;
  color: #c0392b;
  margin-top: 8px;
  border-bottom: none;
}

.info-row {
  color: #27ae60;
  font-size: 13px;
}

.alt-delivery-row {
  color: #1a7a3a;
  font-size: 14px;
  font-weight: 600;
}

/* ПРАВКА 4: бейдж "Найпопулярніший вибір" */
.popular-badge-row {
  border-bottom: none !important;
  padding-top: 2px !important;
  padding-bottom: 6px !important;
}

.popular-badge-row span:last-child {
  color: #b07800;
  font-size: 12px;
  font-weight: 600;
}

.contacts {
  margin-top: 18px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}

.contacts a {
  color: #c0392b;
  text-decoration: none;
  font-weight: 600;
}

.messenger-btns {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.msg-btn {
  flex: 1;
  padding: 9px 0;
  border-radius: 8px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: #fff !important;
  text-decoration: none;
}

.msg-btn.viber    { background: #7360f2; }
.msg-btn.telegram { background: #2aabee; }
.msg-btn.whatsapp { background: #25d366; }

.share-btns {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.share-btn {
  flex: 1;
  padding: 11px 0;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.watermark {
  font-size: 12px;
  color: #bbb;
  margin-top: 12px;
  text-align: right;
}

.watermark a {
  color: #bbb;
  text-decoration: none;
  border-bottom: 1px dotted #bbb;
  transition: color 0.2s;
}

.watermark a:hover {
  color: #c0392b;
  border-bottom-color: #c0392b;
}

.promo-block {
  background: transparent !important;
  border: none !important;
  padding: 8px 0 !important;
  text-align: center;
}

.promo-text {
  font-size: 12px;
  color: #aaa;
  margin-bottom: 3px;
}

.promo-link {
  background: transparent !important;
  color: #aaa !important;
  padding: 0 !important;
  border-radius: 0 !important;
  font-size: 12px !important;
  font-weight: 400 !important;
  text-decoration: underline;
}

.promo-link:hover {
  color: #1a2a5e !important;
}

.error-msg {
  color: #c0392b;
  font-size: 14px;
  margin-top: 12px;
}

.loading {
  text-align: center;
  color: #888;
  font-size: 15px;
  margin-top: 16px;
}

@media (max-width: 480px) {
  .calculator {
    padding: 24px 16px;
  }
  h1 {
    font-size: 22px;
  }
  .messenger-btns {
    flex-direction: column;
  }
  .share-btns {
    flex-direction: column;
  }
}

/* ============================================================
   ЗАГОЛОВОК
   ============================================================ */
.calc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  gap: 12px;
}

/* ============================================================
   ПЛАШКА "ВИСОТА ДО 2.1М"
   ============================================================ */
.height-notice {
  display: inline-block;
  margin-top: 8px;
  padding: 7px 12px;
  background: #fff8e1;
  border-left: 3px solid #f0a030;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #7a5800;
  line-height: 1.4;
}

/* ============================================================
   ПРОМО-БЛОК
   ============================================================ */
.promo-block {
  margin-top: 16px;
  padding: 12px 14px;
  background: #f4f6fb;
  border: 1px solid #dce3f0;
  border-radius: 8px;
  text-align: center;
}

.promo-text {
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
  font-weight: 500;
}

.promo-link {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: #1a2a5e !important;
  text-decoration: none;
  border-bottom: 1px dashed #1a2a5e;
  transition: color 0.2s;
  padding: 0 !important;
  background: transparent !important;
  border-radius: 0 !important;
}

.promo-link:hover {
  color: #c0392b !important;
  border-bottom-color: #c0392b;
}

.result-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #888;
  margin: 14px 0 4px;
}

.result-subtotal {
  font-weight: 600;
  background: #f0f4ff;
  border-radius: 6px;
  padding: 8px 6px !important;
  margin: 4px 0;
  border-bottom: none !important;
}

.delivery-note {
  font-size: 12px;
  color: #888;
  margin-top: 6px;
  font-style: italic;
}

.clarify-badge {
  background: #fff3cd;
  color: #856404;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

/* Галочка */
input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid #c0392b;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  margin-top: 2px;
  transition: background 0.15s, border-color 0.15s;
}
input[type="checkbox"]:checked {
  background: #c0392b;
  border-color: #c0392b;
}
input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 9px;
  border: 2.5px solid #fff;
  border-top: none;
  border-left: none;
  transform: translate(-50%, -60%) rotate(45deg);
}

/* ============================================================
   PDF КНОПКА
   ============================================================ */
.pdf-btn {
  width: 100%;
  background: #1a2a5e;
  color: #fff;
  border: none;
  padding: 13px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 16px;
}

.pdf-btn:hover { background: #2a3a7e; }

#modelPhoto { height: 180px; object-fit: cover; object-position: center 60%; }