/* ============================================
   SHARED: COMPONENTS
   Версия: 5.2 - FIX radius-round
   
   ИЗМЕНЕНИЯ v5.2:
   - FIX: var(--radius-round) НЕ СУЩЕСТВУЕТ в
     variables.css v7.x → border-radius: 0 → квадрат
   - .tag-remove: var(--radius-round) → 50%
   - .back-btn: var(--radius-round) → 50%
   - .spinner: var(--radius-round) → 50%
   - .tag-remove: 16px → 18px, overflow: hidden,
     font-size: 13px (× символ не распирает)
   
   Общие компоненты UI
   ============================================ */

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: var(--button-height);
    text-decoration: none;
}

.btn-primary {
    background: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
}

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    border: 1px solid var(--tg-theme-border-color);
}

.btn-secondary:hover {
    background: var(--tg-theme-border-color);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tg-theme-secondary-bg-color);
    border: 1px solid var(--tg-theme-border-color);
    border-radius: var(--radius-md);
    color: var(--tg-theme-text-color);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-icon:hover {
    background: var(--tg-theme-border-color);
}

/* ============================================
   BACK BUTTON
   ============================================ */

.back-btn {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tg-theme-secondary-bg-color);
    border: none;
    border-radius: 50%; /* FIX v5.2: was var(--radius-round) which doesn't exist */
    color: var(--tg-theme-text-color);
    cursor: pointer;
    transition: all var(--transition-normal);
    flex-shrink: 0;
}

.back-btn:hover {
    background: var(--tg-theme-border-color);
}

/* ============================================
   FORM GROUP
   ============================================ */

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: 0;
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--tg-theme-hint-color);
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0;
    margin-bottom: 0;
}

.form-group label .optional {
    font-weight: var(--font-weight-normal);
    opacity: 0.7;
}

/* ============================================
   INPUTS
   ============================================ */

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 10px 14px;
    font-size: var(--input-font-size);
    border: 1px solid var(--tg-theme-border-color);
    border-radius: var(--radius-md);
    background: var(--tg-theme-secondary-bg-color);
    color: var(--tg-theme-text-color);
    transition: all var(--transition-normal);
    -webkit-appearance: none;
    box-sizing: border-box;
    min-height: var(--input-height);
    height: var(--input-height);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--tg-theme-accent-color);
    box-shadow: 0 0 0 2px rgba(51, 144, 236, 0.2);
}

.form-group input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-group input::placeholder {
    color: var(--tg-theme-hint-color);
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238e8e93' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

/* ============================================
   FORM ROW (2 columns)
   ============================================ */

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: 0;
}

.form-group.half {
    width: 100%;
}

/* ============================================
   FIELD HINT
   ============================================ */

.field-hint {
    font-size: var(--font-size-xs);
    color: var(--tg-theme-hint-color);
    margin-top: var(--spacing-xs);
}

/* ============================================
   TAGS
   ============================================ */

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    min-height: 0;
}

.tags-container:empty {
    display: none;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 8px;
    background: var(--tg-theme-accent-color);
    color: white;
    border-radius: 14px;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    animation: tagAppear 0.2s ease;
    max-width: 100%;
}

.tag-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================
   TAG REMOVE — v5.2 FIX
   
   Было: border-radius: var(--radius-round)
   Проблема: --radius-round НЕ СУЩЕСТВУЕТ в 
   variables.css v7.x → вычисляется как 0 → квадрат
   
   Стало: border-radius: 50% (explicit)
   + overflow: hidden + font-size: 13px
   ============================================ */

.tag-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    min-width: 18px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    transition: background 150ms ease;
}

.tag-remove:hover {
    background: rgba(255, 255, 255, 0.5);
}

@keyframes tagAppear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   AUTOCOMPLETE
   ============================================ */

.autocomplete-wrapper {
    position: relative;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--tg-theme-secondary-bg-color);
    border: 1px solid var(--tg-theme-border-color);
    border-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    display: none;
    margin-top: 4px;
    box-shadow: var(--shadow-md);
}

.autocomplete-dropdown.show {
    display: block;
}

.autocomplete-item {
    padding: 10px 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--tg-theme-border-color);
    transition: background var(--transition-fast);
}

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

.autocomplete-item:hover {
    background: var(--tg-theme-border-color);
}

.autocomplete-item.selected {
    background: var(--tg-theme-accent-color);
    color: white;
}

/* ============================================
   COUNTER
   ============================================ */

.counter {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--tg-theme-secondary-bg-color);
    border: 1px solid var(--tg-theme-border-color);
    border-radius: var(--radius-md);
    padding: 4px;
    height: var(--input-height);
}

.counter-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tg-theme-bg-color);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--tg-theme-text-color);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.counter-btn:hover {
    background: var(--tg-theme-accent-color);
    color: white;
}

.counter-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.counter-value {
    min-width: 30px;
    text-align: center;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   SPINNER
   ============================================ */

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--tg-theme-border-color);
    border-top-color: var(--tg-theme-accent-color);
    border-radius: 50%; /* FIX v5.2: was var(--radius-round) which doesn't exist */
    animation: spin 1s linear infinite;
}

.spinner-small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

/* ============================================
   SYSTEM BADGE
   ============================================ */

.system-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: var(--tg-theme-secondary-bg-color);
    border-radius: 6px;
    font-size: 11px;
    font-weight: var(--font-weight-medium);
}

.system-badge-small {
    padding: 2px 6px;
    font-size: 10px;
}

.system-badge.best-price {
    background: rgba(52, 199, 89, 0.15);
    color: var(--tg-theme-success-color);
}

/* System colors */
.system-badge[data-system="hotelston"] { color: var(--system-hotelston); }
.system-badge[data-system="tbo"] { color: var(--system-tbo); }
.system-badge[data-system="goglobal"] { color: var(--system-goglobal); }
.system-badge[data-system="hotelbeds"] { color: var(--system-hotelbeds); }
.system-badge[data-system="dream"] {
    background-color: #F29100;
    color: #FFFFFF;
    border: 1px solid #1A3B6E;
}