/* ============================================
   LUMO — Components: buttons, cards, forms, calculator, widgets
   ============================================ */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-height: 52px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  box-shadow: 0 4px 20px rgba(192, 57, 43, 0.4);
}
.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.25), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}
.btn--primary:hover::before { transform: translateX(100%); }
.btn--primary:hover { box-shadow: 0 6px 28px rgba(192, 57, 43, 0.55); transform: translateY(-2px); }
.btn--secondary {
  background: transparent;
  border: 1px solid var(--chrome-1);
  color: var(--chrome-1);
}
.btn--secondary:hover { background: rgba(184, 198, 219, 0.1); color: var(--chrome-2); border-color: var(--chrome-2); }
.btn--wa { background: var(--wa); color: #fff; border-radius: 50px; }
.btn--wa:hover { background: #1ebe5c; transform: translateY(-2px); }
.btn--tg { background: var(--tg); color: #fff; border-radius: 50px; }
.btn--tg:hover { background: #0077b3; transform: translateY(-2px); }
.btn--block { width: 100%; white-space: normal; }
.btn--lg { padding: 20px 40px; font-size: 16px; min-height: 60px; }

/* ---------- Service cards ---------- */
.service-card {
  padding: 36px 32px;
  background: rgba(26, 26, 46, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(184, 198, 219, 0.08);
  border-radius: var(--radius);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}
.service-card:hover {
  border-color: rgba(192, 57, 43, 0.5);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 30px rgba(192, 57, 43, 0.1);
}
.service-card:hover::before { opacity: 1; }
.service-card__icon {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(192, 57, 43, 0.2), rgba(184, 198, 219, 0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  color: var(--accent);
}
.service-card h3 { font-size: 24px; margin-bottom: 14px; }
.service-card p { color: var(--text-secondary); font-size: 15px; margin-bottom: 24px; flex-grow: 1; }
.service-card__features { margin-bottom: 28px; }
.service-card__features li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.service-card__features li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 14px; height: 8px;
  border-left: 2px solid var(--success);
  border-bottom: 2px solid var(--success);
  transform: rotate(-45deg);
}
.service-card__price {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 26px;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.service-card__price span { color: var(--accent); }
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  transition: var(--transition);
}
.service-card__link:hover { gap: 14px; }

/* ---------- Calculator ---------- */
.calculator {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(184, 198, 219, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 960px;
  margin: 0 auto;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}
.calculator__tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--border);
}
.calculator__tab {
  padding: 20px 16px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  text-align: center;
}
.calculator__tab:hover { color: var(--text-primary); }
.calculator__tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
  background: rgba(192, 57, 43, 0.05);
}
.calculator__body { padding: 40px; }
.calculator__panel { display: none; }
.calculator__panel.active { display: block; }
.calculator__panel.active .calculator__panel-inner { animation: fadeIn 0.2s ease; }
.calculator__accordion-btn { display: none; }

/* Two-column field layout on desktop */
.calc-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 32px;
}

.calc-field { margin-bottom: 28px; }
.calc-field label {
  display: block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.calc-field select,
.calc-field input[type="number"] {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px;
  transition: var(--transition);
}
.calc-field select:focus,
.calc-field input:focus {
  outline: none;
  border-image: linear-gradient(135deg, var(--chrome-1), var(--chrome-2), var(--chrome-3)) 1;
  box-shadow: 0 0 0 3px rgba(184, 198, 219, 0.12);
}
.calc-options { display: flex; gap: 10px; flex-wrap: wrap; }
.calc-options label {
  flex: 1;
  min-width: 120px;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  font-size: 14px;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-primary);
  margin: 0;
  transition: var(--transition);
}
.calc-options input { display: none; }
.calc-options label:hover { border-color: var(--chrome-1); }
.calc-options label:has(input:checked) {
  border-color: var(--accent);
  background: rgba(192, 57, 43, 0.12);
  color: var(--text-primary);
}
.calc-options label.disabled {
  opacity: 0.35;
  pointer-events: none;
  cursor: not-allowed;
}

/* Hint text (e.g. "Цена указана за 1 диск") */
.calc-hint {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
}

/* Defects / conditional notice */
.calc-notice {
  margin-top: 12px;
  padding: 12px 16px;
  background: rgba(192, 57, 43, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13px;
  color: var(--accent-light);
}

/* Result box */
.calc-result {
  margin-top: 32px;
  padding: 28px;
  background: var(--bg-primary);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  text-align: center;
}
.calc-result__label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.calc-result__price {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 8px;
  background: linear-gradient(90deg, var(--chrome-1), var(--chrome-2), var(--chrome-3), var(--chrome-2));
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 4s linear infinite;
}
.calc-result__price span {
  -webkit-text-fill-color: transparent;
}
.calc-result__note {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}
.calc-result .btn { margin-top: 0; }
.calc-result__cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(192, 57, 43, 0.55);
}

/* ---------- Calculator Modal ---------- */
.calc-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.calc-modal.active { display: flex; }
.calc-modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(8px);
}
.calc-modal__content {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 0.3s ease;
}
.calc-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  line-height: 1;
}
.calc-modal__close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}
.calc-modal__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.5vw, 28px);
  margin-bottom: 8px;
}
.calc-modal__subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
}
.calc-modal__summary {
  padding: 16px 20px;
  background: rgba(192, 57, 43, 0.06);
  border: 1px solid rgba(192, 57, 43, 0.15);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  font-size: 14px;
  line-height: 1.7;
}
.calc-modal__summary-row { color: var(--text-secondary); }
.calc-modal__summary-row strong { color: var(--text-primary); }
.calc-modal__summary-price {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(184, 198, 219, 0.1);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
}
.calc-modal__form .form__success { margin-top: 0; }

/* ---------- Form ---------- */
.form {
  background: rgba(26, 26, 46, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(184, 198, 219, 0.08);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}
.form__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  margin-bottom: 8px;
}
.form__subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 32px;
}
.form-field { margin-bottom: 20px; }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 16px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px;
  transition: var(--transition);
}
.form-field textarea { min-height: 110px; resize: vertical; font-family: var(--font-body); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-secondary); }
.form-agree {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.form-agree input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--accent); flex-shrink: 0; }
.form-agree a { color: var(--chrome-1); text-decoration: underline; }
.form__success {
  display: none;
  padding: 32px;
  background: rgba(39, 174, 96, 0.1);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  text-align: center;
}
.form__success.visible { display: block; animation: fadeInUp 0.4s ease; }
.form__success h3 { color: var(--success); margin-bottom: 12px; }
.form__success p { color: var(--text-secondary); margin-bottom: 20px; }

/* ---------- Floating messenger widget ---------- */
.messenger {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.messenger__toggle {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(192, 57, 43, 0.5);
  transition: var(--transition);
  animation: pulse 2.5s ease-in-out infinite;
}
.messenger__toggle:hover { transform: scale(1.08); }
.messenger__menu {
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
}
.messenger.open .messenger__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.messenger.open .messenger__toggle { animation: none; }
.messenger__btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px 12px 14px;
  border-radius: 50px;
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  transition: var(--transition);
}
.messenger__btn--wa { background: var(--wa); }
.messenger__btn--tg { background: var(--tg); }
.messenger__btn:hover { transform: translateX(-4px); }
.messenger__btn svg { width: 22px; height: 22px; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 32px;
}
.lightbox.active { display: flex; }
.lightbox__content {
  max-width: 900px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.lightbox__close {
  position: absolute;
  top: 24px; right: 24px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 24px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
}

/* ---------- Price table ---------- */
.price-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.price-table th,
.price-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.price-table th {
  background: rgba(192, 57, 43, 0.08);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.price-table tr:last-child td { border-bottom: 0; }
.price-table tr:hover td { background: rgba(192, 57, 43, 0.04); }
.price-table .price { font-family: var(--font-head); font-weight: 700; color: var(--accent); white-space: nowrap; }

/* Scrollable wrapper for tables on mobile */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }
.table-wrap .price-table { min-width: 480px; }

/* Calculator tablet: single column fields, narrower tabs */
@media (max-width: 768px) {
  .calc-fields { grid-template-columns: 1fr; }
  .calculator__tab { font-size: 12px; padding: 14px 6px; line-height: 1.3; }
}

@media (max-width: 767px) {
  .btn { white-space: normal; text-align: center; }
  .btn--lg { padding: 16px 24px; font-size: 15px; }
  .service-card { padding: 28px 24px; }
  .service-card h3 { font-size: 20px; }
  .service-card__price { font-size: 22px; }
  .calculator__body { padding: 24px; }
  .calculator__tab { padding: 16px 8px; font-size: 13px; }
  .calc-options label { min-width: 100px; padding: 12px; font-size: 13px; }
  .calc-result__cta { width: 100%; }
  .form { padding: 28px 20px; }
  .calc-modal__content { padding: 28px 20px; }
  .messenger { bottom: 16px; right: 16px; }
  .messenger__btn { padding: 10px 16px 10px 12px; font-size: 13px; }
  .price-table th, .price-table td { padding: 14px 16px; font-size: 14px; }
}

/* Calculator mobile: vertical accordion */
@media (max-width: 480px) {
  .calculator__tabs { display: none; }
  .calculator__body { padding: 0; }
  .calculator__panel { display: block; border-bottom: 1px solid var(--border); }
  .calculator__panel-inner {
    display: none;
    padding: 20px 20px 4px;
  }
  .calculator__panel.active .calculator__panel-inner {
    display: block;
    animation: fadeIn 0.2s ease;
  }
  .calculator__accordion-btn {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 15px;
    color: var(--text-secondary);
    transition: var(--transition);
  }
  .calculator__panel.active .calculator__accordion-btn {
    color: var(--text-primary);
    background: rgba(192, 57, 43, 0.05);
  }
  .calculator__panel.active .calculator__accordion-btn svg {
    transform: rotate(180deg);
  }
  .calculator__accordion-btn svg {
    transition: transform 0.2s ease;
    flex-shrink: 0;
  }
  .calc-fields { grid-template-columns: 1fr; }
  .calc-options label { min-width: 0; flex-basis: calc(50% - 5px); }
  .calc-result { margin: 0; border-radius: 0; border-left: 0; border-right: 0; border-bottom: 0; }
  .calc-result__cta { width: 100%; }
}