/* ===== ПЕРЕМЕННЫЕ — ОБНОВЛЁННЫЕ ЦВЕТА ===== */
:root {
/* Основные цвета бренда */
--balc-color-bg: #f8f9fa;
--balc-color-card: #ffffff;
--balc-color-primary: #2C3E50;        /* ✅ Изменено: новый основной цвет */
--balc-color-primary-dark: #1a252f;   /* Тёмный вариант для градиентов */
--balc-color-primary-light: #34495e;  /* Светлый вариант для ховеров */
--balc-color-accent: #BA3902;         /* ✅ Изменено: новый акцентный оранжевый */
--balc-color-accent-dark: #9a2f02;    /* Тёмный оранжевый */
--balc-color-accent-light: #d64a0a;   /* Светлый оранжевый */

/* Текст и границы */
--balc-color-text: #333333;
--balc-color-text-light: #666666;
--balc-color-text-muted: #999999;
--balc-color-border: #e0e0e0;
--balc-color-border-dark: #c8d4e0;

/* Статусы */
--balc-color-error: #e74c3c;
--balc-color-success: #2ecc71;
--balc-color-warning: #f39c12;

/* Эффекты */
--balc-shadow-soft: 0 2px 8px rgba(0,0,0,0.08);
--balc-shadow-medium: 0 4px 16px rgba(0,0,0,0.12);
--balc-shadow-strong: 0 8px 32px rgba(0,0,0,0.15);
--balc-shadow-accent: 0 4px 12px rgba(186,57,2,0.25); /* Тень под новый акцент */

/* Размеры */
--balc-radius: 12px;
--balc-radius-sm: 8px;
--balc-radius-lg: 16px;
--balc-gap: 12px;
--balc-gap-sm: 8px;
--balc-gap-lg: 20px;

/* Шрифты */
--balc-font: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
--balc-font-size-base: 15px;
--balc-line-height: 1.6;
}

/* ===== БАЗОВЫЕ СТИЛИ ===== */
.balc-wrapper {
font-family: var(--balc-font);
font-size: var(--balc-font-size-base);
line-height: var(--balc-line-height);
background: var(--balc-color-bg);
color: var(--balc-color-text);
max-width: 1400px;
margin: 0 auto;
padding: 24px 20px;
box-sizing: border-box;
}
.balc-wrapper *,
.balc-wrapper *::before,
.balc-wrapper *::after {
box-sizing: border-box;
}

/* ===== ШАПКА КАЛЬКУЛЯТОРА ===== */
.balc-header {
background: linear-gradient(135deg, var(--balc-color-primary-dark), var(--balc-color-primary));
color: #fff;
padding: 32px 24px;
text-align: center;
border-radius: var(--balc-radius-lg);
margin-bottom: var(--balc-gap-lg);
box-shadow: var(--balc-shadow-medium);
position: relative;
overflow: hidden;
}
.balc-header::before {
content: '';
position: absolute;
top: -50%;
right: -50%;
width: 200px;
height: 200px;
background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
border-radius: 50%;
}
.balc-header h2 {
font-size: 1.8rem;
font-weight: 700;
margin: 0 0 8px;
text-transform: uppercase;
letter-spacing: 0.5px;
position: relative;
z-index: 1;
}
.balc-header p {
font-size: 1rem;
opacity: 0.95;
margin: 0;
font-weight: 400;
position: relative;
z-index: 1;
}

/* ===== ОСНОВНОЙ КОНТЕЙНЕР ===== */
.balc-main {
display: flex;
gap: var(--balc-gap-lg);
margin-bottom: var(--balc-gap-lg);
}
.balc-config-column {
flex: 1;
min-width: 0;
}

/* ===== БЛОК СЕКЦИИ (карточка параметра) ===== */
.balc-section-block {
background: var(--balc-color-card);
border: 2px solid var(--balc-color-border);
border-radius: var(--balc-radius);
padding: 20px;
margin-bottom: var(--balc-gap);
box-shadow: var(--balc-shadow-soft);
transition: all 0.3s ease;
}
.balc-section-block:hover {
border-color: var(--balc-color-primary-light);
box-shadow: var(--balc-shadow-medium);
transform: translateY(-2px);
}
.balc-section-title {
font-size: 1.15rem;
font-weight: 700;
color: var(--balc-color-primary); /* ✅ Изменено */
margin: 0 0 16px;
padding-bottom: 12px;
border-bottom: 2px solid var(--balc-color-border);
text-transform: uppercase;
letter-spacing: 0.5px;
display: flex;
align-items: center;
gap: 8px;
}
.balc-section-title::before {
content: '';
width: 4px;
height: 20px;
background: var(--balc-color-accent); /* ✅ #BA3902 */
border-radius: 2px;
}

/* ===== СЕТКА ОПЦИЙ ===== */
.balc-options-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
gap: var(--balc-gap-sm);
}

/* ===== КАРТОЧКА ОПЦИИ ===== */
.balc-option-card {
position: relative;
border: 2px solid var(--balc-color-border); /* ✅ По умолчанию */
border-radius: var(--balc-radius-sm);
padding: 18px 12px;
cursor: pointer;
text-align: center;
font-size: 0.92rem;
font-weight: 600;
background: #fff;
transition: all 0.25s ease;
user-select: none;
color: var(--balc-color-text);
}
.balc-option-card:hover {
border-color: var(--balc-color-accent); /* ✅ #BA3902 при наведении */
background: linear-gradient(135deg, #fffaf8, #fff0eb);
transform: translateY(-2px);
box-shadow: var(--balc-shadow-soft);
}
.balc-option-card.selected {
border-color: var(--balc-color-accent); /* ✅ #BA3902 при выборе */
background: linear-gradient(135deg, #fff5f0, #ffe8d6);
box-shadow: var(--balc-shadow-accent);
color: var(--balc-color-primary);
}
.balc-check-icon {
position: absolute;
top: -10px;
right: -10px;
width: 28px;
height: 28px;
background: var(--balc-color-accent); /* ✅ #BA3902 */
border: 3px solid #fff;
border-radius: 50%;
display: none;
align-items: center;
justify-content: center;
color: #fff;
font-size: 14px;
font-weight: bold;
box-shadow: var(--balc-shadow-soft);
z-index: 2;
}
.balc-option-card.selected .balc-check-icon {
display: flex;
}

/* ===== ПРАВАЯ КОЛОНКА (десктоп) ===== */
.balc-right-column {
width: 360px;
flex-shrink: 0;
}
.balc-right-inner {
position: sticky;
top: 24px;
display: flex;
flex-direction: column;
gap: var(--balc-gap);
}

/* ===== БЛОК ПРЕДПРОСМОТРА ===== */
.balc-preview-block {
background: var(--balc-color-card);
border: 2px solid var(--balc-color-border);
border-radius: var(--balc-radius);
padding: 20px;
box-shadow: var(--balc-shadow-soft);
}
.balc-preview-title {
font-size: 1.1rem;
font-weight: 700;
color: var(--balc-color-primary); /* ✅ #2C3E50 */
margin: 0 0 16px;
text-align: center;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.balc-preview-scene {
position: relative;
width: 100%;
aspect-ratio: 1 / 1;
background: linear-gradient(135deg, #e8ecf0, #dce4ec);
border-radius: var(--balc-radius-sm);
overflow: hidden;
border: 2px solid var(--balc-color-border);
box-shadow: inset 0 2px 8px rgba(0,0,0,0.05);
}

/* Элементы предпросмотра */
.balc-prev-walls,
.balc-prev-glazing,
.balc-prev-floor,
.balc-prev-ins-top,
.balc-prev-ins-left,
.balc-prev-ins-bottom {
position: absolute;
background-size: cover;
background-position: center;
background-repeat: no-repeat;
transition: all 0.4s ease;
}
.balc-prev-walls {
left: 10%; right: 0; top: 10%; bottom: 20%;
background-color: #e8e6e1;
}
.balc-prev-glazing {
left: 0; right: 10%; top: 10%; bottom: 20%;
z-index: 1;
}
.balc-prev-glazing.hidden-layer {
opacity: 0;
pointer-events: none;
}
.balc-prev-ins-top {
left: 0; right: 0; top: 0; height: 10%;
z-index: 2;
}
.balc-prev-ins-left {
left: 0; width: 10%; top: 0; bottom: 20%;
z-index: 2;
}
.balc-prev-ins-bottom {
left: 0; right: 0; bottom: 0; height: 20%;
z-index: 2;
}
.balc-prev-ins-top.hidden-layer,
.balc-prev-ins-left.hidden-layer,
.balc-prev-ins-bottom.hidden-layer {
opacity: 0;
pointer-events: none;
}
.balc-prev-floor {
left: 0; right: 0; bottom: 0; height: 20%;
background-color: #c8c0b8;
z-index: 3;
}

/* ===== БЛОК ИТОГО ===== */
.balc-total-block {
background: linear-gradient(135deg, var(--balc-color-primary-dark), var(--balc-color-primary)); /* ✅ #2C3E50 градиент */
color: #fff;
border-radius: var(--balc-radius);
padding: 24px;
box-shadow: var(--balc-shadow-medium);
text-align: center;
position: relative;
overflow: hidden;
}
.balc-total-block::before {
content: '';
position: absolute;
top: -30%;
right: -30%;
width: 150px;
height: 150px;
background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
border-radius: 50%;
}
.balc-total-label {
font-size: 1rem;
opacity: 0.95;
margin-bottom: 8px;
text-transform: uppercase;
letter-spacing: 1px;
position: relative;
z-index: 1;
}
.balc-total-price {
font-size: 2.4rem;
font-weight: 800;
letter-spacing: 1px;
margin-bottom: 16px;
position: relative;
z-index: 1;
}
.balc-total-price span {
font-size: 1.4rem;
font-weight: 400;
opacity: 0.9;
}
.balc-btn-reset {
width: 100%;
padding: 12px;
border: 2px solid rgba(255,255,255,0.5);
background: rgba(255,255,255,0.1);
color: #fff;
border-radius: var(--balc-radius-sm);
font-size: 0.95rem;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
text-transform: uppercase;
letter-spacing: 0.5px;
position: relative;
z-index: 1;
}
.balc-btn-reset:hover {
background: rgba(255,255,255,0.2);
border-color: #fff;
transform: translateY(-2px);
}

/* ===== ФОРМА ЗАЯВКИ ===== */
.balc-form-section {
background: var(--balc-color-card);
border: 2px solid var(--balc-color-border);
border-radius: var(--balc-radius);
padding: 28px 24px;
box-shadow: var(--balc-shadow-soft);
margin-top: var(--balc-gap);
}
.balc-form-title {
font-size: 1.3rem;
font-weight: 700;
color: var(--balc-color-primary); /* ✅ #2C3E50 */
margin: 0 0 20px;
text-align: center;
text-transform: uppercase;
letter-spacing: 0.5px;
position: relative;
padding-bottom: 12px;
}
.balc-form-title::after {
content: '';
position: absolute;
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 60px;
height: 3px;
background: var(--balc-color-accent); /* ✅ #BA3902 */
border-radius: 2px;
}
.balc-form-row {
display: flex;
gap: var(--balc-gap);
margin-bottom: 0;
}
.balc-form-row .balc-form-group {
flex: 1;
min-width: 0;
}
.balc-form-group {
margin-bottom: 16px;
}
.balc-form-group label {
display: block;
font-size: 0.9rem;
font-weight: 600;
margin-bottom: 6px;
color: var(--balc-color-text);
}
.balc-form-group .required-mark {
color: var(--balc-color-error);
margin-left: 2px;
}
.balc-form-input {
width: 100%;
padding: 12px 16px;
border: 2px solid var(--balc-color-border);
border-radius: var(--balc-radius-sm);
font-size: 1rem;
font-family: var(--balc-font);
color: var(--balc-color-text);
background: #fff;
transition: all 0.3s ease;
}
.balc-form-input:focus {
outline: none;
border-color: var(--balc-color-primary); /* ✅ #2C3E50 */
box-shadow: 0 0 0 3px rgba(44,62,80,0.15);
}
.balc-form-input::placeholder {
color: var(--balc-color-text-muted);
}
.balc-form-input.error {
border-color: var(--balc-color-error);
box-shadow: 0 0 0 3px rgba(231,76,60,0.12);
}
.balc-form-input.success {
border-color: var(--balc-color-success);
}
.balc-error-msg {
font-size: 0.82rem;
color: var(--balc-color-error);
margin-top: 4px;
display: none;
font-weight: 500;
}
.balc-error-msg.visible {
display: block;
animation: balcShake 0.3s ease;
}
@keyframes balcShake {
0%, 100% { transform: translateX(0); }
25% { transform: translateX(-4px); }
75% { transform: translateX(4px); }
}
textarea.balc-form-input {
resize: vertical;
min-height: 90px;
}

/* ===== КНОПКА "ОФОРМИТЬ ЗАЯВКУ" — ОБНОВЛЁННЫЙ СТИЛЬ ===== */
/* ✅ 1. Цвет кнопки #BA3902 + 2. Пробегающая линия #2C3E50 (всегда активна) */
.balc-btn-submit {
  width: 100%;
  padding: 14px 20px;
  background: linear-gradient(135deg, var(--balc-color-accent), var(--balc-color-accent-dark));
  color: #fff;
  border: none;
  border-radius: var(--balc-radius-sm);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--balc-shadow-accent);
  position: relative;
  overflow: hidden;
  /* ✅ Пробегающая линия вокруг кнопки */
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* ✅ Линия пробегает ПОСТОЯННО (убрано условие :hover для opacity) */
.balc-btn-submit::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  background: linear-gradient(90deg, transparent, var(--balc-color-primary), transparent);
  border-radius: calc(var(--balc-radius-sm) + 2px);
  z-index: -1;
  animation: balcBorderRun 2.5s linear infinite;
  opacity: 1; /* ✅ Всегда видима */
}

@keyframes balcBorderRun {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ✅ Ховер-эффекты для кнопки (без изменения opacity линии) */
.balc-btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(186,57,2,0.35);
}

.balc-btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===== МОДАЛЬНОЕ ОКНО (POP-UP) ===== */
.balc-modal-overlay {
display: none;
position: fixed;
top: 0; left: 0;
width: 100%; height: 100%;
background: rgba(0,0,0,0.6);
z-index: 10000;
align-items: center;
justify-content: center;
padding: 20px;
backdrop-filter: blur(4px);
animation: balcFadeIn 0.3s ease;
}
@keyframes balcFadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.balc-modal-overlay.active {
display: flex;
}
.balc-modal-content {
background: #fff;
border-radius: var(--balc-radius-lg);
padding: 0;
max-width: 580px;
width: 100%;
max-height: 90vh;
overflow-y: auto;
box-shadow: var(--balc-shadow-strong);
position: relative;
animation: balcModalSlideIn 0.3s ease;
}
@keyframes balcModalSlideIn {
from {
opacity: 0;
transform: scale(0.95) translateY(20px);
}
to {
opacity: 1;
transform: scale(1) translateY(0);
}
}

/* ✅ 4. Кнопка закрыть Pop-up — цвет #BA3902 */
.balc-modal-close {
position: absolute;
top: 16px; right: 20px;
font-size: 2rem;
color: var(--balc-color-accent); /* ✅ #BA3902 */
cursor: pointer;
background: none;
border: none;
line-height: 1;
transition: all 0.3s ease;
z-index: 10;
width: 32px;
height: 32px;
display: flex;
align-items: center;
justify-content: center;
border-radius: 50%;
}
.balc-modal-close:hover {
color: var(--balc-color-accent-dark);
background: rgba(186,57,2,0.1);
transform: rotate(90deg);
}

.balc-modal-title {
background: linear-gradient(135deg, var(--balc-color-primary-dark), var(--balc-color-primary)); /* ✅ #2C3E50 */
color: #fff;
font-size: 1.3rem;
font-weight: 700;
margin: 0;
padding: 24px;
text-align: center;
text-transform: uppercase;
letter-spacing: 0.5px;
position: sticky;
top: 0;
z-index: 5;
}
.balc-modal-summary {
font-size: 0.95rem;
color: var(--balc-color-text);
padding: 24px;
}
.balc-modal-summary-row {
display: flex;
justify-content: space-between;
padding: 10px 0;
border-bottom: 1px solid var(--balc-color-border);
}
.balc-modal-summary-row:last-child {
border-bottom: none;
}
.balc-modal-summary-row .label {
font-weight: 600;
color: var(--balc-color-text);
}
.balc-modal-summary-row .value {
color: var(--balc-color-text-light);
text-align: right;
max-width: 65%;
word-break: break-word;
}
.balc-modal-total-row {
display: flex;
justify-content: space-between;
padding: 20px 0 0;
margin-top: 20px;
font-size: 1.25rem;
font-weight: 700;
color: var(--balc-color-primary); /* ✅ #2C3E50 */
border-top: 3px solid var(--balc-color-accent); /* ✅ #BA3902 */
}

/* ===== МОБИЛЬНАЯ ВЕРСИЯ ===== */
.mobile-only { display: none; }
.desktop-only { display: block; }
@media (max-width: 1024px) {
.balc-main {
flex-direction: column;
gap: var(--balc-gap);
}
.balc-right-column {
width: 100%;
}
.balc-right-inner {
position: static;
flex-direction: column;
}
.desktop-only { display: none; }
.mobile-only { display: block; }
.balc-options-grid {
grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}
.balc-mobile-footer {
display: flex;
flex-direction: column;
gap: var(--balc-gap);
}
.balc-preview-block,
.balc-total-block {
margin: 0 !important;
}
.balc-form-section {
margin-top: var(--balc-gap) !important;
margin-bottom: 0 !important;
}
}
@media (max-width: 600px) {
.balc-wrapper { padding: 12px; }
.balc-header { padding: 24px 16px; }
.balc-header h2 { font-size: 1.4rem; }
.balc-header p { font-size: 0.95rem; }
.balc-options-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
.balc-section-block { padding: 16px; }
.balc-section-title { font-size: 1rem; }
.balc-option-card { padding: 14px 8px; font-size: 0.85rem; }
.balc-total-price { font-size: 2rem; }
.balc-preview-scene { aspect-ratio: 4/3; }
.balc-form-section { padding: 20px 16px; }
.balc-form-title { font-size: 1.15rem; }
.balc-form-row { flex-direction: column; gap: 0; }
.balc-modal-content { max-height: 95vh; border-radius: var(--balc-radius); }
.balc-modal-title { font-size: 1.15rem; padding: 20px; }
.balc-modal-summary { padding: 20px; font-size: 0.9rem; }
.balc-modal-close { top: 12px; right: 16px; font-size: 1.8rem; }
.balc-btn-submit { font-size: 1rem; padding: 12px; }
}

/* ===== ДОСТУПНОСТЬ ===== */
.balc-option-card:focus,
.balc-form-input:focus,
.balc-btn-reset:focus,
.balc-btn-submit:focus {
outline: 3px solid var(--balc-color-primary); /* ✅ #2C3E50 */
outline-offset: 2px;
}
.balc-option-card:focus-visible,
.balc-form-input:focus-visible {
outline: 3px solid var(--balc-color-accent); /* ✅ #BA3902 */
outline-offset: 2px;
}

/* ===== УТИЛИТЫ ===== */
.balc-hidden { display: none !important; }
.balc-sr-only {
position: absolute;
width: 1px; height: 1px;
padding: 0; margin: -1px;
overflow: hidden; clip: rect(0,0,0,0);
white-space: nowrap; border: 0;
}

/* ===== АНИМАЦИИ ===== */
@keyframes balcPulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.7; }
}
.balc-loading {
animation: balcPulse 1.5s ease-in-out infinite;
}
.balc-section-block {
animation: balcFadeInUp 0.4s ease forwards;
opacity: 0;
transform: translateY(10px);
}
.balc-section-block:nth-child(1) { animation-delay: 0.1s; opacity: 1; transform: none; }
.balc-section-block:nth-child(2) { animation-delay: 0.15s; opacity: 1; transform: none; }
.balc-section-block:nth-child(3) { animation-delay: 0.2s; opacity: 1; transform: none; }
.balc-section-block:nth-child(4) { animation-delay: 0.25s; opacity: 1; transform: none; }
.balc-section-block:nth-child(5) { animation-delay: 0.3s; opacity: 1; transform: none; }
.balc-section-block:nth-child(6) { animation-delay: 0.35s; opacity: 1; transform: none; }
@keyframes balcFadeInUp {
to { opacity: 1; transform: translateY(0); }
}