/* =============================================
   Единая система кнопок ArtMastex
   ============================================= */

:root {
    /* Цвета кнопок */
    --btn-primary-bg: linear-gradient(135deg, #7231FF 0%, #9B59B6 100%);
    --btn-primary-hover-bg: linear-gradient(135deg, #9B59B6 0%, #7231FF 100%);
    --btn-secondary-border: #7231FF;
    --btn-secondary-hover-bg: #f8f4ff;
    --btn-success-bg: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    --btn-success-hover-bg: linear-gradient(135deg, #45a049 0%, #3d8b40 100%);
    --btn-danger-bg: #d32f2f;
    --btn-danger-hover-bg: #b71c1c;
    --btn-warning-bg: linear-gradient(135deg, #FFE343 0%, #FFD600 100%);
    --btn-warning-hover-bg: linear-gradient(135deg, #FFD600 0%, #FFC700 100%);
    --btn-cancel-border: #888;
    --btn-cancel-color: #888;
    --btn-cancel-hover-bg: #f8f9fa;
    --btn-clear-bg: #FFE0E0;
    --btn-clear-color: #D32F2F;
    --btn-clear-hover-bg: #D32F2F;
    --btn-link-bg: linear-gradient(135deg, #7231FF 0%, #9B59B6 100%);
    --btn-link-hover-bg: linear-gradient(135deg, #9B59B6 0%, #7231FF 100%);
    
    /* Размеры */
    --btn-padding-sm: 8px 16px;
    --btn-padding-md: 12px 24px;
    --btn-padding-lg: 16px 32px;
    --btn-font-size-sm: 13px;
    --btn-font-size-md: 14px;
    --btn-font-size-lg: 16px;
    --btn-border-radius-sm: 18px; /* Половина высоты small кнопки (36px / 2) */
    --btn-border-radius-md: 10px; /* Средняя кнопка */
    --btn-border-radius-lg: 16px; /* Большая кнопка */
    --btn-border-radius: var(--btn-border-radius-md); /* По умолчанию средний радиус */
    --btn-min-height: 44px;
    
    /* Тени */
    --btn-shadow-primary: 0 2px 8px rgba(114, 49, 255, 0.2);
    --btn-shadow-primary-hover: 0 4px 12px rgba(114, 49, 255, 0.3);
    --btn-shadow-danger: 0 2px 8px rgba(211, 47, 47, 0.2);
    --btn-shadow-danger-hover: 0 4px 12px rgba(211, 47, 47, 0.3);
}

/* =============================================
   Базовые стили для всех кнопок
   ============================================= */
.btn-primary,
.btn-secondary,
.btn-success,
.btn-danger,
.btn-warning,
.btn-cancel,
.btn-clear,
.btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: var(--btn-padding-md);
    border: none;
    border-radius: var(--btn-border-radius);
    font-size: var(--btn-font-size-md);
    font-weight: 600;
    font-family: "Unbounded", sans-serif;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: var(--btn-min-height);
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    white-space: nowrap;
}

/* =============================================
   Типы кнопок
   ============================================= */

/* Primary - основная кнопка */
.btn-primary {
    background: var(--btn-primary-bg);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Secondary - вторичная кнопка */
.btn-secondary {
    background: transparent;
    border: 2px solid var(--btn-secondary-border);
    color: var(--btn-secondary-border);
}

.btn-secondary:hover {
    background: var(--btn-secondary-hover-bg);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* Success - кнопка успеха */
.btn-success {
    background: var(--btn-success-bg);
    color: white;
}

.btn-success:hover {
    background: var(--btn-success-hover-bg);
    transform: translateY(-2px);
}

.btn-success:active {
    transform: translateY(0);
}

/* Danger - опасная кнопка */
.btn-danger {
    background: var(--btn-danger-bg);
    color: white;
}

.btn-danger:hover {
    background: var(--btn-danger-hover-bg);
    transform: translateY(-2px);
}

.btn-danger:active {
    transform: translateY(0);
}

/* Warning - предупреждение */
.btn-warning {
    background: var(--btn-warning-bg);
    color: #333;
}

.btn-warning:hover {
    background: var(--btn-warning-hover-bg);
    transform: translateY(-2px);
}

.btn-warning:active {
    transform: translateY(0);
}

/* Cancel - отмена */
.btn-cancel {
    background: transparent;
    border: 2px solid var(--btn-cancel-border);
    color: var(--btn-cancel-color);
}

.btn-cancel:hover {
    background: var(--btn-cancel-hover-bg);
    border-color: #666;
    color: #666;
    transform: translateY(-2px);
}

.btn-cancel:active {
    transform: translateY(0);
}

/* Clear - очистка */
.btn-clear {
    background: var(--btn-clear-bg);
    color: var(--btn-clear-color);
}

.btn-clear:hover {
    background: var(--btn-clear-hover-bg);
    color: white;
    transform: translateY(-2px);
}

.btn-clear:active {
    transform: translateY(0);
}

/* Link - кнопка перехода */
.btn-link {
    background: var(--btn-link-bg);
    color: white;
    border-radius: var(--btn-border-radius);
    position: relative;
    overflow: hidden;
}

.btn-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-link:hover {
    background: var(--btn-link-hover-bg);
    color: white;
    transform: translateY(-2px);
}

.btn-link:hover::before {
    left: 100%;
}

.btn-link:active {
    color: white;
    transform: translateY(0);
}

/* =============================================
   Размеры кнопок
   ============================================= */

.btn-sm {
    padding: var(--btn-padding-sm);
    font-size: var(--btn-font-size-sm);
    min-height: 36px;
    border-radius: var(--btn-border-radius-sm);
}

.btn-md {
    padding: var(--btn-padding-md);
    font-size: var(--btn-font-size-md);
    min-height: var(--btn-min-height);
    border-radius: var(--btn-border-radius-md);
}

.btn-lg {
    padding: var(--btn-padding-lg);
    font-size: var(--btn-font-size-lg);
    min-height: 52px;
    border-radius: var(--btn-border-radius-lg);
}

/* =============================================
   Варианты стилей
   ============================================= */

/* Outline варианты */
.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--btn-secondary-border);
    color: var(--btn-secondary-border);
    border-radius: var(--btn-border-radius);
}

.btn-outline-primary:hover {
    background: var(--btn-primary-bg);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-primary:active {
    transform: translateY(0);
}

.btn-outline-secondary {
    background: transparent;
    border: 2px solid var(--btn-secondary-border);
    color: var(--btn-secondary-border);
    border-radius: var(--btn-border-radius);
}

.btn-outline-secondary:hover {
    background: var(--btn-secondary-hover-bg);
    transform: translateY(-2px);
}

.btn-outline-secondary:active {
    transform: translateY(0);
}

.btn-outline-danger {
    background: transparent;
    border: 2px solid var(--btn-danger-bg);
    color: var(--btn-danger-bg);
    border-radius: var(--btn-border-radius);
}

.btn-outline-danger:hover {
    background: var(--btn-danger-bg);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-danger:active {
    transform: translateY(0);
}

.btn-outline-success {
    background: transparent;
    border: 2px solid #4CAF50;
    color: #4CAF50;
    border-radius: var(--btn-border-radius);
}

.btn-outline-success:hover {
    background: var(--btn-success-bg);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-success:active {
    transform: translateY(0);
}

.btn-outline-info {
    background: transparent;
    border: 2px solid #17a2b8;
    color: #17a2b8;
    border-radius: var(--btn-border-radius);
}

.btn-outline-info:hover {
    background: #17a2b8;
    color: white;
    transform: translateY(-2px);
}

.btn-outline-info:active {
    transform: translateY(0);
}

/* Ghost варианты */
.btn-ghost-primary {
    background: transparent;
    border: none;
    color: var(--btn-secondary-border);
    border-radius: var(--btn-border-radius);
}

.btn-ghost-primary:hover {
    background: var(--btn-secondary-hover-bg);
    transform: translateY(-2px);
}

.btn-ghost-primary:active {
    transform: translateY(0);
}

/* =============================================
   Состояния кнопок
   ============================================= */

.btn-primary:disabled,
.btn-secondary:disabled,
.btn-success:disabled,
.btn-danger:disabled,
.btn-warning:disabled,
.btn-cancel:disabled,
.btn-clear:disabled,
.btn-link:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary:disabled:hover,
.btn-secondary:disabled:hover,
.btn-success:disabled:hover,
.btn-danger:disabled:hover,
.btn-warning:disabled:hover,
.btn-cancel:disabled:hover,
.btn-clear:disabled:hover,
.btn-link:disabled:hover {
    transform: none;
}

/* =============================================
   Иконки в кнопках
   ============================================= */

.btn-primary i,
.btn-secondary i,
.btn-success i,
.btn-danger i,
.btn-warning i,
.btn-cancel i,
.btn-clear i,
.btn-link i {
    font-size: 14px;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
}

.btn-primary i.fas,
.btn-primary i.fa,
.btn-success i.fas,
.btn-success i.fa,
.btn-danger i.fas,
.btn-danger i.fa,
.btn-link i.fas,
.btn-link i.fa {
    color: white;
    opacity: 1;
}

/* =============================================
   Специальные кнопки
   ============================================= */

/* Кнопка закрытия */
.btn-close,
.modal-close {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    color: #999;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    outline: none;
}

.btn-close:hover,
.modal-close:hover {
    color: #333;
    background: #F5F3FA;
}

.btn-close:focus,
.modal-close:focus {
    outline: none;
}

.btn-close:active,
.modal-close:active {
    outline: none;
}

/* Кнопка только с иконкой */
.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    border-radius: 50%;
}

.btn-icon.btn-sm {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 50%;
}

.btn-icon.btn-lg {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: 50%;
}

/* Кнопка-переключатель выбора опции */
.option-button {
    padding: 14px 18px;
    border: 2px solid #E0DDEB;
    background: #FAFAFA;
    border-radius: 15px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    text-align: center;
    white-space: nowrap;
    min-width: 120px;
    flex: 0 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    display: inline-block;
}

.option-button:hover {
    border-color: #7231FF;
    background: #F8F6FF;
    transform: translateY(-2px);
}

.option-button.active,
.option-button.selected {
    background: linear-gradient(135deg, #FFE343 0%, #FFD600 100%);
    color: #333;
    border-color: #FFE343;
    font-weight: 600;
}

.option-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Кнопки количества (как в калькуляторе) */
.cart-item-quantity-controls {
    display: flex;
    align-items: center;
    gap: 0;
    margin: 0;
}

.cart-item-quantity-controls .qty-btn {
    width: 32px;
    height: 36px;
    border: 2px solid #E0DDEB;
    background: white;
    border-radius: 0;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    color: #7231FF;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-family: "Unbounded", sans-serif;
    padding: 0;
    margin: 0;
    line-height: 1;
    border-right: none;
}

.cart-item-quantity-controls .qty-btn.qty-down {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.cart-item-quantity-controls .qty-btn.qty-up {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-left: none;
    border-right: 2px solid #E0DDEB;
}

.cart-item-quantity-controls .qty-btn:hover {
    background: #7231FF;
    color: white;
    border-color: #7231FF;
    z-index: 1;
    position: relative;
}

.cart-item-quantity-controls .qty-input {
    width: 50px;
    height: 36px;
    text-align: center;
    padding: 8px 4px;
    border: 2px solid #E0DDEB;
    border-radius: 0;
    border-left: none;
    border-right: none;
    font-size: 14px;
    font-weight: 700;
    background: white;
    -moz-appearance: textfield;
    font-family: "Unbounded", sans-serif;
}

.cart-item-quantity-controls .qty-input::-webkit-outer-spin-button,
.cart-item-quantity-controls .qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cart-item-quantity-controls .qty-input:focus {
    outline: none;
    border-color: #7231FF;
    z-index: 1;
    position: relative;
}

.cart-item-quantity-controls .qty-value {
    min-width: 40px;
    text-align: center;
    font-weight: 600;
    color: #333;
    font-size: 16px;
    font-family: "Unbounded", sans-serif;
}

/* Общие стили для qty-btn (если используется вне cart-item-quantity-controls) */
.qty-btn {
    width: 32px;
    height: 36px;
    border: 2px solid #E0DDEB;
    background: white;
    border-radius: 0;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    color: #7231FF;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-family: "Unbounded", sans-serif;
    padding: 0;
    margin: 0;
    line-height: 1;
    border-right: none;
}

.qty-btn.qty-down {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.qty-btn.qty-up {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-right: 2px solid #E0DDEB;
}

.qty-btn:hover {
    background: #7231FF;
    color: white;
    border-color: #7231FF;
}

/* =============================================
   Специальные случаи
   ============================================= */

/* Кнопки внутри карточек */
.product-card-action .btn-link {
    border-radius: 0 0 16px 16px;
    width: 100%;
}

/* ВАЖНО: Кнопки редактирования, удаления и дублирования в карточках товаров калькулятора
   НЕ должны изменяться - они используют свои специфичные стили:
   - .cart-item-edit
   - .cart-item-duplicate  
   - .cart-item-remove
   Эти стили определены в frontend/calculator/style.css и не должны переопределяться здесь.
*/

/* Grid для option-button */
.option-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}