/* ═══════════════════════════════════════════════════════════════════
   Калькулятор стоимости дома — calc-section
   ═══════════════════════════════════════════════════════════════════ */

/* ── Секция ──────────────────────────────────────────────────────── */
.calc-section {
  padding: var(--section-py) 0;
  background:
    linear-gradient(135deg, rgba(8,20,13,.92) 0%, rgba(18,32,24,.88) 60%, rgba(10,24,16,.94) 100%),
    url('/sites/default/files/calc/calc-bg.jpg') center/cover no-repeat;
  position: relative;
  overflow: hidden;
}

.calc-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(29,162,104,.10) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 10% 80%, rgba(29,162,104,.07) 0%, transparent 60%);
  pointer-events: none;
}

/* ── Шапка секции ─────────────────────────────────────────────────── */
.calc-section__top {
  text-align: center;
  margin-bottom: 48px;
}

.calc-section__eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-soft);
  border: 1px solid rgba(29,162,104,.25);
  border-radius: var(--r-full);
  padding: 6px 18px;
  margin-bottom: 20px;
}

.calc-section__heading {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin: 0;
}

.calc-section__heading span {
  color: var(--clr-accent);
}

/* ── Основная карточка ────────────────────────────────────────────── */
.calc-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.4);
  min-height: 480px;
}

/* ── Сайдбар ──────────────────────────────────────────────────────── */
.calc-sidebar {
  background: var(--clr-navy);
  padding: 36px 28px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-right: 1px solid rgba(255,255,255,.06);
}

.calc-sidebar__manager {
  display: flex;
  align-items: center;
  gap: 14px;
}

.calc-sidebar__avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--clr-accent);
}

.calc-sidebar__avatar svg {
  width: 100%;
  height: 100%;
}

.calc-sidebar__manager-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-sidebar__manager-info strong {
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.calc-sidebar__manager-info span {
  font-size: .75rem;
  color: var(--clr-accent);
  opacity: .85;
}

.calc-sidebar__intro {
  font-size: .82rem;
  color: rgba(255,255,255,.6);
  line-height: 1.5;
  margin: 0;
}

.calc-sidebar__intro strong {
  color: rgba(255,255,255,.9);
  display: block;
  margin-top: 4px;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.calc-sidebar__benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc-sidebar__benefits li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .8rem;
  color: rgba(255,255,255,.7);
  line-height: 1.4;
}

.calc-benefit__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}

.calc-benefit__icon svg {
  width: 100%;
  height: 100%;
}

/* ── Зона квиза ───────────────────────────────────────────────────── */
.calc-quiz {
  background: #fff;
  padding: 36px 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: relative;
}

/* ── Прогресс ─────────────────────────────────────────────────────── */
.calc-progress {
  display: flex;
  align-items: center;
  gap: 14px;
}

.calc-progress__track {
  flex: 1;
  height: 6px;
  background: #e8f0ec;
  border-radius: var(--r-full);
  overflow: hidden;
}

.calc-progress__fill {
  height: 100%;
  background: var(--clr-accent);
  border-radius: var(--r-full);
  transition: width .4s cubic-bezier(.4,0,.2,1);
  width: calc(1 / 7 * 100%);
}

.calc-progress__label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  white-space: nowrap;
  min-width: 36px;
}

/* ── Шаги ─────────────────────────────────────────────────────────── */
.calc-steps {
  flex: 1;
}

.calc-step__question {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.3;
}

.calc-step__num {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--clr-accent);
  min-width: 28px;
}

.calc-step__sub {
  font-size: .875rem;
  color: var(--clr-text-muted);
  margin: -12px 0 20px;
}

/* ── Сетки вариантов ──────────────────────────────────────────────── */
.calc-options {
  display: grid;
  gap: 10px;
}

.calc-options--grid6 {
  grid-template-columns: repeat(3, 1fr);
}

.calc-options--grid3 {
  grid-template-columns: repeat(3, 1fr);
}

.calc-options--list2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ── Карточка варианта ────────────────────────────────────────────── */
.calc-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: #f4f8f5;
  border: 2px solid #d4e4dc;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: border-color var(--tr), background var(--tr), color var(--tr), transform var(--tr);
  font-size: .85rem;
  font-weight: 500;
  color: var(--clr-text);
  text-align: left;
  line-height: 1.3;
  position: relative;
  font-family: var(--ff-body);
}

.calc-opt:hover {
  border-color: var(--clr-accent);
  background: rgba(29,162,104,.06);
  transform: translateY(-1px);
}

.calc-opt.is-selected {
  border-color: var(--clr-accent);
  background: rgba(29,162,104,.1);
  color: var(--clr-accent-dark);
  font-weight: 600;
}

.calc-opt.is-selected::after {
  content: '';
  position: absolute;
  top: 8px;
  right: 8px;
  width: 18px;
  height: 18px;
  background: var(--clr-accent) url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 7l3 3 5-6' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat;
  border-radius: 50%;
}

/* Вариант с иконкой (grid6, gift) */
.calc-opt__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  color: var(--clr-accent);
}

.calc-opt__icon svg {
  width: 100%;
  height: 100%;
}

/* Подарки — вертикальные карточки */
.calc-opt--gift {
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 14px;
  gap: 12px;
}

.calc-opt--gift .calc-opt__icon {
  width: 48px;
  height: 48px;
}

/* grid6 — иконки сверху на маленьких экранах */
.calc-options--grid6 .calc-opt {
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px 10px;
  gap: 8px;
  font-size: .78rem;
}

/* ── Шаг контактов ────────────────────────────────────────────────── */
.calc-step--contacts .calc-step__question {
  font-size: .95rem;
}

.calc-form__channels {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.calc-channel {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border: 1px solid #d4e4dc;
  border-radius: var(--r-full);
  cursor: pointer;
  font-size: .8rem;
  color: var(--clr-text-muted);
  transition: border-color var(--tr), background var(--tr), color var(--tr);
  user-select: none;
}

.calc-channel svg {
  width: 16px;
  height: 16px;
}

.calc-channel.is-active {
  border-color: var(--clr-accent);
  color: var(--clr-accent-dark);
  background: rgba(29,162,104,.07);
  font-weight: 600;
}

.calc-form__fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.calc-form__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.calc-form__input {
  padding: 12px 16px;
  border: 1.5px solid #d4e4dc;
  border-radius: var(--r-md);
  font-size: .9rem;
  color: var(--clr-text);
  font-family: var(--ff-body);
  transition: border-color var(--tr), box-shadow var(--tr);
  outline: none;
  background: #fff;
}

.calc-form__input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(29,162,104,.12);
}

.calc-form__input.is-error {
  border-color: #e53e3e;
}

.calc-form__error {
  font-size: .75rem;
  color: #e53e3e;
  min-height: 16px;
}

.calc-form__consent {
  font-size: .72rem;
  color: var(--clr-text-muted);
  margin: 0 0 18px;
  line-height: 1.4;
}

.calc-form__consent a {
  color: var(--clr-accent);
  text-decoration: underline;
}

.calc-form__submit {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  border-radius: var(--r-full);
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--tr), transform var(--tr), box-shadow var(--tr);
  font-family: var(--ff-body);
}

.calc-form__submit:hover:not(:disabled) {
  background: var(--clr-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}

.calc-form__submit:disabled {
  opacity: .7;
  cursor: not-allowed;
}

.calc-form__submit-arrow {
  font-size: 1.1rem;
}

.calc-form__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: calcSpin .7s linear infinite;
}

@keyframes calcSpin {
  to { transform: rotate(360deg); }
}

/* ── Навигация Назад/Далее ────────────────────────────────────────── */
.calc-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calc-nav__back,
.calc-nav__next {
  padding: 11px 24px;
  border-radius: var(--r-full);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--tr), color var(--tr), border-color var(--tr), transform var(--tr);
  font-family: var(--ff-body);
}

.calc-nav__back {
  background: transparent;
  border: 1.5px solid #d4e4dc;
  color: var(--clr-text-muted);
}

.calc-nav__back:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent-dark);
}

.calc-nav__next {
  background: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
  color: #fff;
}

.calc-nav__next:hover:not(:disabled) {
  background: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  transform: translateY(-1px);
}

.calc-nav__next:disabled {
  background: #c8ddd4;
  border-color: #c8ddd4;
  color: #8fa89e;
  cursor: not-allowed;
}

/* ── Экран успеха ─────────────────────────────────────────────────── */
.calc-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  gap: 16px;
  flex: 1;
}

.calc-success__icon {
  width: 80px;
  height: 80px;
}

.calc-success__icon svg {
  width: 100%;
  height: 100%;
}

.calc-success__title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-text);
  margin: 0;
}

.calc-success__text {
  font-size: .9rem;
  color: var(--clr-text-muted);
  max-width: 400px;
  line-height: 1.6;
  margin: 0;
}

/* ── Анимация шагов ───────────────────────────────────────────────── */
.calc-step {
  animation: calcFadeIn .3s ease both;
}

@keyframes calcFadeIn {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Адаптив ──────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .calc-card {
    grid-template-columns: 1fr;
  }

  .calc-sidebar {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,.06);
    padding: 28px 24px;
  }

  .calc-sidebar__intro,
  .calc-sidebar__benefits {
    display: none;
  }

  .calc-quiz {
    padding: 28px 24px 24px;
  }

  .calc-options--grid6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-options--grid3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .calc-options--list2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-form__fields {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .calc-section {
    padding: var(--section-py-sm) 0;
  }

  .calc-section__top {
    margin-bottom: 32px;
  }

  .calc-options--grid6,
  .calc-options--list2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-options--grid3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .calc-quiz {
    padding: 20px 16px 20px;
    gap: 20px;
  }

  .calc-form__channels {
    flex-wrap: wrap;
  }
}