/* ===== CALCULATOR SPECIFIC STYLES ===== */
.plaster-calculator {
    font-family: inherit;
    color: var(--text-color);
    background: transparent;
    min-height: auto;
    position: relative;
    padding-bottom: 100px; /* Отступ для фиксированной кнопки */
}

/* Убираем внутренние отступы у контейнера калькулятора */
.plaster-calculator .calculator-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

/* Шапка калькулятора */
.calculator-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--bg-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.calculator-title h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.calculator-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
}

.calculator-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* Вкладки комнат */
.rooms-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    box-shadow: var(--shadow);
    min-height: 60px;
    border: 1px solid var(--border-color);
}

.room-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
}

.room-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.room-tab:hover:not(.active) {
    background: var(--bg-dark);
    border-color: var(--border-color);
}

.room-tab-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.room-tab-close {
    background: none;
    border: none;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    transition: var(--transition);
}

.room-tab-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
}

/* Основной лейаут с двумя колонками */
.calculator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Левая колонка - Форма */
.calculator-form-column {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    min-height: 800px;
    display: flex;
    flex-direction: column;
}

.form-column-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

/* Заголовок комнаты */
.room-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.room-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.room-name-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
    background: var(--bg-color);
}

.room-name-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Форма комнаты */
.form-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.form-section-title svg {
    color: var(--primary-color);
}

/* Улучшенный дизайн размеров помещения */
.room-dimensions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dimension-card {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.dimension-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.dimension-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    margin: 0 auto 1rem;
}

.dimension-label {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.9375rem;
}

.dimension-unit {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.dimension-unit input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

.dimension-unit input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.dimension-unit span {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.875rem;
    min-width: 30px;
}

.dimension-conversion {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.dimension-conversion .conversion-value {
    color: var(--primary-color);
    font-weight: 500;
}

/* Список комнат в правой колонке */
.saved-rooms {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-header h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.btn-text {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-text:hover {
    background: var(--bg-light);
    color: var(--text-color);
}

/* Список комнат - с вертикальным скроллом */
.rooms-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    padding-right: 0.5rem;
    flex: 1;
    min-height: 300px;
    max-height: 500px;
}

/* Минимум 4 комнаты видно */
.rooms-list:has(.room-card:nth-child(4)) {
    min-height: 400px;
}

/* Стили для скроллбара */
.rooms-list::-webkit-scrollbar {
    width: 6px;
}

.rooms-list::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.rooms-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.rooms-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.empty-state svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    margin: 0;
}

.empty-state .hint {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    color: var(--text-light);
}

.room-card {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    min-height: 120px;
}

.room-card.active {
    border-color: var(--primary-color);
    background: rgba(67, 97, 238, 0.05);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.1);
}

.room-card:hover:not(.active) {
    border-color: var(--border-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.room-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.room-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.btn-room-remove {
    background: #fee2e2;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    color: #dc2626;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-room-remove:hover {
    background: #fecaca;
    transform: scale(1.05);
}

.room-card-info {
    margin-bottom: 0.75rem;
}

.room-card-size {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.room-card-stats {
    display: flex;
    gap: 1rem;
}

.room-stat {
    display: flex;
    flex-direction: column;
}

.room-stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
}

.room-stat-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-color);
}

.room-card-footer {
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.room-card-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.room-card-price {
    font-weight: 600;
    color: var(--primary-color);
}

/* Схема помещения в правой колонке */
.room-scheme-container {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    flex: 1;
    min-height: 400px;
}

.scheme-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.scheme-workspace {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 2rem;
    min-height: 300px;
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scheme-visualization {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.room-scheme-diagram {
    position: relative;
    width: 280px;
    height: 200px;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(114, 9, 183, 0.1));
    border-radius: 12px;
    border: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.room-dimension-visual {
    position: absolute;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.dimension-length {
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 24px;
    border-radius: 12px;
}

.dimension-width {
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 120px;
    border-radius: 12px;
}

.dimension-height {
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 120px;
    border-radius: 12px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.room-shape {
    width: 200px;
    height: 120px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    position: relative;
}

.scheme-info-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    width: 100%;
    max-width: 600px;
}

.scheme-info-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.scheme-info-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
}

.scheme-info-content {
    flex: 1;
}

.scheme-info-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.scheme-info-value {
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
}

/* Результаты во всю ширину */
.calculator-full-width-results {
    width: 100%;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

/* Сводные карточки результатов */
.results-summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.summary-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.summary-content {
    flex: 1;
}

.summary-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-color);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.summary-unit {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Результаты расчета */
.calculator-results {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.results-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.results-empty svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.results-empty h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.results-empty p {
    color: var(--text-light);
    margin: 0;
}

.results-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.results-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Сетка результатов */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.result-card {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.result-card.primary {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(114, 9, 183, 0.1));
    border-color: rgba(67, 97, 238, 0.2);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.result-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    color: var(--primary-color);
    border: 2px solid var(--border-color);
}

.result-card.primary .result-icon {
    background: var(--primary-color);
    color: white;
    border: none;
}

.result-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.result-values {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.result-value {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.value-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-color);
    line-height: 1;
}

.value-unit {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.result-note {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* Детализация расчета */
.results-details {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
}

.results-details h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-light);
    font-size: 0.875rem;
}

.detail-value {
    font-weight: 600;
    color: var(--text-color);
}

/* Общая статистика */
.total-statistics {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-sm);
    padding: 2rem;
    color: white;
    margin-top: 2rem;
}

.total-statistics h3 {
    color: white;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Кнопки действий с результатами */
.results-action-buttons {
    margin-top: 2rem;
}

.action-buttons-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Кнопки в один ряд - 6 кнопок */
.utility-buttons {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 0.75rem;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 100px;
    position: relative;
    overflow: hidden;
}

.action-btn:hover {
    background: var(--bg-dark);
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(67, 97, 238, 0.15);
}

.action-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(67, 97, 238, 0.1);
}

/* Эффект при наведении */
.action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(67, 97, 238, 0) 0%,
        rgba(67, 97, 238, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.action-btn:hover::before {
    opacity: 1;
}

/* Иконки кнопок */
.action-btn .icon {
    width: 28px;
    height: 28px;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    transition: transform 0.3s ease, color 0.3s ease;
}

.action-btn:hover .icon {
    color: var(--secondary-color);
    transform: scale(1.1);
}

/* Текст кнопок */
.action-btn .label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-color);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.action-btn:hover .label {
    color: var(--primary-color);
}

/* Окна и двери */
.openings-manager {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    margin-top: 1.5rem;
    border: 1px solid var(--border-color);
}

.openings-section {
    margin-bottom: 1.5rem;
}

.openings-section:last-child {
    margin-bottom: 0;
}

.openings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.openings-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.openings-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.empty-opening {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    border: 2px dashed var(--border-color);
}

/* Карточки окон и дверей */
.opening-card {
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.opening-card:hover {
    border-color: var(--border-color);
    box-shadow: var(--shadow);
}

.opening-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.opening-card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.opening-card-icon {
    width: 32px;
    height: 32px;
    background: var(--bg-light);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.opening-card-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-edit-opening, .btn-remove-opening {
    background: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-edit-opening {
    color: var(--text-light);
}

.btn-edit-opening:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.btn-remove-opening {
    color: var(--text-light);
}

.btn-remove-opening:hover {
    background: #fee2e2;
    color: #dc2626;
}

.opening-card-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.opening-info-item {
    display: flex;
    flex-direction: column;
}

.opening-info-label {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.opening-info-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
}

/* Управление комнатами */
.rooms-management {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 2rem;
}

/* Модальные окна - улучшенные */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal {
    background: var(--bg-color);
    border-radius: var(--radius);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
    position: relative;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.modal-close {
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-light);
    color: var(--text-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Форма добавления окон/дверей */
.opening-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.opening-preview {
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 2px dashed var(--border-color);
    text-align: center;
    margin-bottom: 1.5rem;
}

.opening-preview-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.opening-conversion {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.opening-conversion .conversion-value {
    color: var(--primary-color);
    font-weight: 500;
}

.slopes-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.slopes-section h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.slopes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

/* Параметры штукатурки */
.plaster-params {
    display: grid;
    gap: 1rem;
}

.thickness-control {
    margin: 1.5rem 0;
}

.thickness-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    margin: 1rem 0;
}

.thickness-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.thickness-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.thickness-indicator {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.plaster-type-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin: 1rem 0;
}

.plaster-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.plaster-option.active {
    border-color: var(--primary-color);
    background: rgba(67, 97, 238, 0.1);
}

.plaster-option:hover:not(.active) {
    border-color: var(--border-color);
    background: var(--bg-dark);
}

.plaster-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border-radius: var(--radius-sm);
    border: 2px solid var(--border-color);
    font-size: 1.5rem;
}

.plaster-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.plaster-name {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.875rem;
}

.plaster-desc {
    color: var(--text-light);
    font-size: 0.75rem;
}

.price-controls {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: end;
}

.price-input-group {
    position: relative;
}

.price-unit {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-weight: 500;
}

.price-presets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.price-preset {
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.price-preset:hover {
    background: var(--bg-dark);
}

.price-preset.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Утилитарные классы */
.hidden {
    display: none !important;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-color);
    color: var(--text-color);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-dark);
    border-color: var(--border-color);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Чекбоксы */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
}

.checkbox-label input:checked ~ .checkbox-custom {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input:checked ~ .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input {
    display: none;
}

.checkbox-text {
    color: var(--text-color);
    font-weight: 500;
}

/* Выбор веса мешка */
.bag-weight-selector {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.weight-option {
    flex: 1;
    padding: 0.75rem;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.weight-option.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.weight-option:hover:not(.active) {
    background: var(--bg-dark);
    border-color: var(--border-color);
}

/* ФИКСИРОВАННАЯ КНОПКА СНИЗУ ЭКРАНА */
.fixed-bottom-calculate-btn {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-color);
    padding: 1rem 0;
    border-top: 2px solid var(--border-color);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.fixed-bottom-calculate-btn .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.fixed-bottom-calculate-btn .btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.125rem;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(67, 97, 238, 0.3);
    position: relative;
    overflow: hidden;
}

.fixed-bottom-calculate-btn .btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.fixed-bottom-calculate-btn .btn:hover::after {
    opacity: 1;
}

.fixed-bottom-calculate-btn .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(67, 97, 238, 0.4);
}

/* Анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Анимация при клике */
@keyframes buttonClick {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.95);
    }
    100% {
        transform: scale(1);
    }
}

.action-btn:active {
    animation: buttonClick 0.2s ease;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
    .calculator-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .rooms-scheme-column {
        flex-direction: row;
        gap: 2rem;
    }
    
    .saved-rooms,
    .room-scheme-container {
        flex: 1;
    }
    
    .results-summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .utility-buttons {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .fixed-bottom-calculate-btn .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 992px) {
    .calculator-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
        padding: 1.5rem;
    }
    
    .calculator-title h1 {
        font-size: 1.75rem;
    }
    
    .calculator-subtitle {
        font-size: 1rem;
    }
    
    .calculator-form-column,
    .saved-rooms,
    .room-scheme-container,
    .calculator-results {
        padding: 1.5rem;
    }
    
    .room-dimensions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rooms-scheme-column {
        flex-direction: column;
    }
    
    .rooms-list {
        min-height: 200px;
    }
    
    .utility-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .calculator-container {
        padding: 0 15px;
    }
    
    .rooms-tabs {
        padding: 0.75rem;
    }
    
    .room-tab {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .room-dimensions-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .results-summary-cards {
        grid-template-columns: 1fr;
    }
    
    .summary-card {
        padding: 1rem;
    }
    
    .summary-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
    
    .summary-value {
        font-size: 1.5rem;
    }
    
    .utility-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .opening-form-grid {
        grid-template-columns: 1fr;
    }
    
    .slopes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal {
        width: 95%;
        max-height: 85vh;
    }
    
    .room-scheme-diagram {
        width: 240px;
        height: 160px;
    }
    
    .dimension-length {
        width: 160px;
        bottom: -25px;
    }
    
    .room-shape {
        width: 160px;
        height: 100px;
    }
    
    .fixed-bottom-calculate-btn .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .calculator-header {
        padding: 1rem;
    }
    
    .calculator-title h1 {
        font-size: 1.5rem;
    }
    
    .calculator-subtitle {
        font-size: 0.875rem;
    }
    
    .calculator-badge {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .utility-buttons {
        grid-template-columns: 1fr;
    }
    
    .action-buttons-grid {
        gap: 0.5rem;
    }
    
    .action-btn {
        padding: 0.5rem;
        min-height: 60px;
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
        padding-left: 1rem;
    }
    
    .action-btn .icon {
        margin-bottom: 0;
        margin-right: 0.5rem;
    }
    
    .action-btn .label {
        font-size: 0.8rem;
    }
    
    .opening-card-info {
        grid-template-columns: 1fr;
    }
    
    .slopes-grid {
        grid-template-columns: 1fr;
    }
    
    .bag-weight-selector {
        flex-direction: column;
    }
    
    .room-card-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .room-scheme-diagram {
        width: 200px;
        height: 140px;
    }
    
    .dimension-length {
        width: 140px;
        bottom: -20px;
        font-size: 0.75rem;
    }
    
    .dimension-width,
    .dimension-height {
        width: 20px;
        height: 100px;
        font-size: 0.75rem;
    }
    
    .room-shape {
        width: 140px;
        height: 80px;
    }
    
    .rooms-list {
        min-height: 150px;
    }
    
    .fixed-bottom-calculate-btn .btn {
        padding: 0.875rem;
        font-size: 1rem;
    }
}

/* Адаптация для мобильных устройств */
@media (max-width: 576px) {
    .form-section-title {
        font-size: 1rem;
    }
    
    .form-section-title svg {
        width: 18px;
        height: 18px;
    }
    
    .room-title {
        font-size: 1.25rem;
    }
    
    .scheme-title {
        font-size: 1.125rem;
    }
    
    .results-header h2 {
        font-size: 1.25rem;
    }
    
    .result-card {
        padding: 1rem;
    }
    
    .value-number {
        font-size: 1.5rem;
    }
    
    .total-statistics {
        padding: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
    
    .utility-buttons {
        grid-template-columns: 1fr;
    }
}

/* Стили для печати */
@media print {
    .plaster-calculator {
        background: white !important;
    }
    
    .calculator-header,
    .calculator-form-sidebar,
    .room-scheme-container,
    .saved-rooms,
    .btn,
    .action-btn,
    .modal-overlay,
    .rooms-tabs,
    .fixed-bottom-calculate-btn {
        display: none !important;
    }
    
    .calculator-layout {
        grid-template-columns: 1fr !important;
    }
    
    .calculator-results {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        page-break-inside: avoid;
    }
    
    .results-grid,
    .details-grid,
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    .total-statistics {
        background: var(--primary-color) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* Темная тема поддержка */
@media (prefers-color-scheme: dark) {
    .plaster-calculator {
        color: #e2e8f0;
    }
    
    .calculator-header,
    .calculator-form-column,
    .room-scheme-container,
    .saved-rooms,
    .calculator-results,
    .modal,
    .opening-card,
    .result-card,
    .info-card,
    .fixed-bottom-calculate-btn {
        background: #1e293b;
        border-color: #334155;
        color: #e2e8f0;
    }
    
    .room-name-input,
    .form-input {
        background: #1e293b;
        border-color: #334155;
        color: #e2e8f0;
    }
    
    .room-card,
    .opening-card,
    .result-card {
        background: #1e293b;
        border-color: #334155;
    }
    
    .bg-light {
        background: #334155 !important;
    }
    
    .text-light {
        color: #94a3b8 !important;
    }
    
    .action-btn {
        background: #1e293b;
        border-color: #334155;
    }
    
    .action-btn:hover {
        background: #334155;
        border-color: var(--primary-color);
    }
    
    .action-btn .label {
        color: #e2e8f0;
    }
    
    .action-btn:hover .label {
        color: var(--primary-color);
    }
}