/* ==========================
   БАЗОВЫЕ ЦВЕТА ПОД САЙТ
   ========================== */

:root {
  /* тёмный фон секции как на главной */
  --calc-bg: var(--bg-section-dark-top, #0F2748);
  --calc-panel-bg: var(--card-bg);
  --calc-block-bg: #F5F8FF;

  --calc-border: var(--border-card);

  --calc-primary: var(--brand-blue);
  --calc-primary-soft: var(--brand-blue-soft);
  --calc-primary-glow: rgba(var(--brand-blue-rgb), 0.30);

  --calc-text-main: var(--text-main);
  --calc-text-muted: var(--text-muted);
  --calc-text-soft: var(--text-soft);
}


/* ==========================
   СЕКЦИЯ И ЗАГОЛОВОК
   ========================== */

.calc-section {
  padding: 80px 0 90px;
  background:
    radial-gradient(circle at top left, rgba(0, 188, 212, 0.18) 0, transparent 55%),
    radial-gradient(circle at bottom right, rgba(47, 123, 255, 0.22) 0, transparent 55%),
    var(--calc-bg);
}

.calc-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: #F8FAFF;
}


/* ==========================
   ТАБЫ (контрастные пилюли)
   ========================== */

.calc-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
  gap: 12px;
}

/* базовый вид для обеих вкладок */
.calc-tabs .tab-btn {
  position: relative;
  padding: 12px 44px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(248, 250, 255, 0.85);
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  z-index: 0;

  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
}

/* лёгкий hover для НЕактивной пилюли */
.calc-tabs .tab-btn:not(.active):hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
}

/* активная вкладка — как "Открыть калькулятор" */
.calc-tabs .tab-btn.active {
  border-color: transparent;
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow:
    0 12px 30px rgba(var(--brand-blue-rgb), 0.55),
    0 0 18px rgba(var(--brand-blue-rgb), 0.35);
}

/* градиент под активной */
.calc-tabs .tab-btn.active::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--brand-blue-soft), var(--brand-blue));
  z-index: -1;
}

/* лёгкий "сияющий" блик в центре активной кнопки */
.calc-tabs .tab-btn.active::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 0,
              rgba(255, 255, 255, 0.25) 0,
              transparent 55%);
  opacity: 0.9;
  z-index: -1;
}



/* ==========================
   ОБЩАЯ ПАНЕЛЬ КАЛЬКУЛЯТОРА
   ========================== */

.calc-panel {
  max-width: 1120px;
  margin: 0 auto;
  border-radius: 32px;
  padding: 36px 40px;
  background:
    radial-gradient(circle at 0% 0%, rgba(47, 123, 255, 0.18), transparent 60%),
    radial-gradient(circle at 100% 100%, rgba(242, 153, 74, 0.12), transparent 60%),
    var(--calc-panel-bg);
  box-shadow:
    0 24px 55px rgba(3, 7, 18, 0.55),
    0 0 90px rgba(47, 123, 255, 0.12);
}

/* карточки вкладок (частным / бизнесу) */
.calc-card {
  display: none;
  align-items: stretch;
  gap: 32px;
  color: var(--calc-text-main);
}

.calc-card.active {
  display: flex;
}


/* ==========================
   ЛЕВАЯ ЧАСТЬ (СУММА/СРОК)
   ========================== */

.calc-left {
  flex: 1 1 60%;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.calc-block {
  background: var(--calc-block-bg);
  border-radius: 22px;
  padding: 20px 24px 18px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.10);
  border: 1px solid var(--calc-border);
}

.calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.calc-label {
  font-size: 0.94rem;
  color: var(--calc-text-soft);
}

.calc-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--calc-text-main);
}


/* ==========================
   СЛАЙДЕРЫ
   ========================== */

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 7px;
  border-radius: 999px;
  background: #E2E6F0;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 7px;
  background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 3px solid var(--calc-primary);
  box-shadow: 0 0 8px var(--calc-primary-glow);
  margin-top: -7px;
  transition: 0.2s;
}

input[type="range"]:active::-webkit-slider-thumb {
  box-shadow: 0 0 12px rgba(var(--brand-blue-rgb), 0.75);
  transform: scale(1.04);
}

/* Firefox */
input[type="range"]::-moz-range-track {
  height: 7px;
  background: transparent;
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 3px solid var(--calc-primary);
  box-shadow: 0 0 8px var(--calc-primary-glow);
  transition: 0.2s;
}

input[type="range"]:active::-moz-range-thumb {
  box-shadow: 0 0 12px rgba(var(--brand-blue-rgb), 0.75);
  transform: scale(1.04);
}

/* подписи под слайдерами */
.scale-abs {
  margin-top: 8px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--calc-text-muted);
}

.slider-labels span {
  color: var(--calc-text-muted);
}


/* ==========================
   ПРАВАЯ ЧАСТЬ (РЕЗУЛЬТАТ)
   ========================== */

.calc-output {
  flex: 0 0 320px;
  background: var(--calc-block-bg);
  border-radius: 22px;
  padding: 26px 26px 24px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.16);
  border: 1px solid rgba(15, 23, 42, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.out-caption {
  font-size: 0.94rem;
  color: var(--calc-text-soft);
  margin-bottom: 10px;
}

.out-sum {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--calc-text-main);
  margin-bottom: 16px;
}

.out-label-small {
  font-size: 0.8rem;
  color: var(--calc-text-muted);
}

.gesv-small {
  margin-top: 4px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--calc-primary-soft);
}


/* ==========================
   КНОПКИ СРОКА (БИЗНЕС)
   ========================== */

.term-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

/* НЕактивная — лёгкий прозрачный чип, без белой рамки */
.term-btn {
  position: relative;
  padding: 10px 24px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  background: rgba(15, 23, 42, 0.04);
  color: var(--calc-text-muted);
  cursor: pointer;
  overflow: hidden;
  transition: 0.25s ease;
  z-index: 0;
}

.term-btn:hover {
  background: rgba(15, 23, 42, 0.08);
  color: var(--calc-text-main);
}

/* Активная — как "Открыть калькулятор" */
.term-btn.active {
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(var(--brand-blue-rgb), 0.45);
}

.term-btn.active::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--brand-blue-soft), var(--brand-blue));
  z-index: -1;
}


/* ==========================
   АДАПТИВ
   ========================== */

@media (max-width: 900px) {
  .calc-panel {
    padding: 24px 18px;
  }

  .calc-card {
    flex-direction: column;
  }

  .calc-output {
    flex: 1 1 auto;
    margin-top: 18px;
    width: 100%;
  }
}

@media (max-width: 640px) {
  .calc-title {
    font-size: 1.6rem;
    line-height: 1.2;
    padding: 0 10px;
  }

  .calc-panel {
    border-radius: 24px;
  }

  .calc-value {
    font-size: 1.4rem;
  }

  .out-sum {
    font-size: 1.8rem;
  }
}

/* Мобильная адаптация подписей под ползунками */
@media (max-width: 480px) {
  .scale-abs {
    font-size: 11px !important;
    gap: 2px;
  }

  .scale-abs span {
    white-space: nowrap;
  }
}