/**
 * 📝 FORMS CSS ДЛЯ TELEGRAM MINI APP
 * Стили форм, полей ввода и элементов управления
 */

/* ============================================================================
   📝 БАЗОВЫЕ СТИЛИ ФОРМ
   ============================================================================ */

.form {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.form-col {
    flex: 1;
}

/* ============================================================================
   🏷️ ЛЕЙБЛЫ И ОПИСАНИЯ
   ============================================================================ */

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: var(--line-height-normal);
}

.form-label.required::after {
    content: '*';
    color: var(--error-color);
    margin-left: var(--spacing-xs);
}

.form-description {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    line-height: var(--line-height-normal);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--error-color);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-error .icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ============================================================================
   📝 ПОЛЯ ВВОДА
   ============================================================================ */

.form-input {
    width: 100%;
    min-height: var(--input-height);
    padding: var(--spacing-sm) var(--spacing-md);
    border: var(--input-border);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    transition: all var(--duration-normal) var(--ease-out);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.form-input::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

.form-input:focus {
    border: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(210, 69, 44, 0.1);
    background: var(--bg-card);
}

.form-input:disabled {
    background: var(--bg-secondary);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: var(--disabled-opacity);
}

.form-input.error {
    border-color: var(--error-color);
    background: rgba(244, 67, 54, 0.05);
}

.form-input.error:focus {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.1);
}

.form-input.success {
    border-color: var(--success-color);
    background: rgba(76, 175, 80, 0.05);
}

/* ============================================================================
   📐 РАЗМЕРЫ ПОЛЕЙ ВВОДА
   ============================================================================ */

.form-input-sm {
    min-height: 36px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

.form-input-lg {
    min-height: 56px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
}

/* ============================================================================
   📝 TEXTAREA
   ============================================================================ */

.form-textarea {
    min-height: 120px;
    resize: vertical;
    padding: var(--spacing-md);
    line-height: var(--line-height-normal);
    font-family: var(--font-family-primary);
}

.form-textarea.auto-resize {
    resize: none;
    overflow: hidden;
}

/* Специальный стиль для цитат */
.form-textarea-quote {
    min-height: 160px;
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-loose);
    font-style: italic;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.form-textarea-quote:focus {
    background: var(--bg-card);
    box-shadow: var(--shadow-primary);
}

.form-textarea-quote::placeholder {
    font-style: italic;
    color: var(--text-muted);
}

/* ============================================================================
   🔽 SELECT И ВЫПАДАЮЩИЕ СПИСКИ
   ============================================================================ */

.form-select {
    width: 100%;
    min-height: var(--input-height);
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 40px;
    border: var(--input-border);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--spacing-sm) center;
    background-size: 20px;
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.form-select:focus {
    border: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(210, 69, 44, 0.1);
    outline: none;
}

.form-select:disabled {
    background: var(--bg-secondary);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* ============================================================================
   ☑️ ЧЕКБОКСЫ И РАДИОКНОПКИ
   ============================================================================ */

.form-checkbox,
.form-radio {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
    width: 20px;
    height: 20px;
    margin: 0;
    opacity: 0;
    position: absolute;
    left: 0;
    top: 2px;
}

.form-checkbox .checkmark,
.form-radio .checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    background: var(--bg-card);
    position: relative;
    flex-shrink: 0;
    transition: all var(--duration-normal) var(--ease-out);
}

.form-checkbox .checkmark {
    border-radius: var(--radius-sm);
}

.form-radio .checkmark {
    border-radius: var(--radius-round);
}

.form-checkbox input:checked + .checkmark,
.form-radio input:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.form-checkbox input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-inverse);
    font-size: 14px;
    font-weight: bold;
}

.form-radio input:checked + .checkmark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--text-inverse);
    border-radius: var(--radius-round);
}

.form-checkbox:hover .checkmark,
.form-radio:hover .checkmark {
    border-color: var(--primary-color);
}

.form-checkbox input:focus + .checkmark,
.form-radio input:focus + .checkmark {
    box-shadow: 0 0 0 3px rgba(210, 69, 44, 0.1);
}

.form-checkbox-label,
.form-radio-label {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: var(--line-height-normal);
    cursor: pointer;
}

/* ============================================================================
   🎚️ RANGE СЛАЙДЕРЫ
   ============================================================================ */

.form-range {
    width: 100%;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: var(--radius-round);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.form-range::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: var(--radius-round);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
}

/* ============================================================================
   🔍 ПОИСК И СПЕЦИАЛЬНЫЕ ПОЛЯ
   ============================================================================ */

.form-search {
    position: relative;
}

.form-search .form-input {
    padding-left: 40px;
    padding-right: 40px;
}

.form-search .search-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.form-search .clear-btn {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.form-search .form-input:not(:placeholder-shown) + .clear-btn {
    opacity: 1;
}

.form-search .clear-btn:hover {
    color: var(--text-primary);
}

/* Поле с иконкой */
.form-input-icon {
    position: relative;
}

.form-input-icon .form-input {
    padding-left: 40px;
}

.form-input-icon .icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

/* ============================================================================
   📊 СЧЕТЧИКИ И ИНДИКАТОРЫ
   ============================================================================ */

.form-counter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-xs);
}

.form-counter-text {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.form-counter-numbers {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.form-counter-numbers.warning {
    color: var(--warning-color);
}

.form-counter-numbers.error {
    color: var(--error-color);
}

/* Индикатор загрузки для полей */
.form-loading {
    position: relative;
}

.form-loading::after {
    content: '';
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid var(--bg-secondary);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-round);
    animation: formSpin 1s linear infinite;
}

@keyframes formSpin {
    to { transform: translateY(-50%) rotate(360deg); }
}

/* ============================================================================
   🔘 TOGGLE SWITCHES
   ============================================================================ */

.form-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-toggle input[type="checkbox"] {
    display: none;
}

.toggle-switch {
    width: 48px;
    height: 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
    position: relative;
    transition: all var(--duration-normal) var(--ease-out);
    cursor: pointer;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-round);
    transition: all var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-sm);
}

.form-toggle input:checked + .toggle-switch {
    background: var(--primary-color);
}

.form-toggle input:checked + .toggle-switch::after {
    transform: translateX(24px);
}

.form-toggle:hover .toggle-switch {
    transform: scale(1.05);
}

.toggle-label {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    cursor: pointer;
}

/* ============================================================================
   📋 ГРУППЫ ПОЛЕЙ
   ============================================================================ */

.form-fieldset {
    border: 1px solid var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-legend {
    background: var(--bg-primary);
    padding: 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    position: absolute;
    top: -12px;
    left: var(--spacing-md);
}

/* Группа радиокнопок */
.form-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-radio-group.horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* Группа чекбоксов */
.form-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ============================================================================
   🎯 СПЕЦИАЛЬНЫЕ ФОРМЫ ДЛЯ MINI APP
   ============================================================================ */

/* Форма добавления цитаты */
.quote-form {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.quote-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.quote-form .form-textarea-quote {
    background: var(--bg-secondary);
    border: 2px dashed var(--primary-color);
    min-height: 180px;
}

.quote-form .form-textarea-quote:focus {
    border-style: solid;
    background: var(--bg-card);
    box-shadow: var(--shadow-primary);
}

/* Быстрая форма */
.quick-form {
    background: var(--bg-overlay);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--primary-color);
}

.quick-form .form-input {
    border: none;
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

/* ============================================================================
   📱 МОБИЛЬНАЯ АДАПТАЦИЯ
   ============================================================================ */

@media (max-width: 480px) {
    .form-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px; /* Предотвращение zoom на iOS */
    }
    
    .form-textarea {
        min-height: 100px;
    }
    
    .form-textarea-quote {
        min-height: 140px;
        padding: var(--spacing-md);
    }
    
    .form-radio-group.horizontal {
        flex-direction: column;
    }
    
    .quote-form {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }
}

/* ============================================================================
   🎭 АНИМАЦИИ И ЭФФЕКТЫ
   ============================================================================ */

/* Анимация появления ошибки */
.form-error {
    animation: errorSlideIn var(--duration-normal) var(--ease-out);
}

@keyframes errorSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Плавающие лейблы */
.form-floating {
    position: relative;
}

.form-floating .form-input {
    padding-top: 20px;
}

.form-floating .form-label {
    position: absolute;
    top: 50%;
    left: var(--spacing-md);
    transform: translateY(-50%);
    transition: all var(--duration-normal) var(--ease-out);
    pointer-events: none;
    color: var(--text-muted);
    font-size: var(--font-size-base);
}

.form-floating .form-input:focus + .form-label,
.form-floating .form-input:not(:placeholder-shown) + .form-label {
    top: 8px;
    transform: translateY(0);
    font-size: var(--font-size-xs);
    color: var(--primary-color);
}

/* Эффект focus для полей */
.form-input,
.form-select,
.form-textarea {
    position: relative;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    transform: translateY(-1px);
}