/* ======================================================================
   СТИЛИЗАЦИЯ ФОРУМА (Полная сборка с улучшениями)
   ================================================================      */

/* ============================================================================
   БЛОК 0: ПЕРЕМЕННЫЕ ТЕМЫ (CSS VARIABLES)
============================================================================ */
:root {
    /* Цветовая палитра */
    --forum-bg: #F9F9F9;
    --forum-glass-bg: rgba(255, 255, 255, 0.55);
    --forum-glass-bg-strong: rgba(255, 255, 255, 0.78);
    --forum-white: var(--forum-glass-bg-strong);
    --forum-white-hover: rgba(255, 255, 255, 0.88);

    --forum-text: #333333;
    --forum-text-muted: #6B7280;

    --forum-accent: #E04265;
    --forum-accent-hover: #C83554;
    --forum-link-hover: #2C78E4;

    --forum-border: rgba(255, 255, 255, 0.5);
    --forum-placeholder: #9CA3AF;

    /* Размеры и скругления */
    --forum-radius: 16px;
    --forum-radius-sm: 12px;
    --forum-padding: 24px;
    --forum-padding-sm: 16px;

    /* Тени и эффекты фокуса */
    --forum-focus-ring: 0 0 0 3px rgba(224, 66, 101, 0.25);

    --forum-shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.06),
                       0 2px 4px -1px rgba(0, 0, 0, 0.03);

    --forum-shadow-md: 0 8px 32px 0 rgba(31, 38, 135, 0.12),
                       inset 0 1px 0 0 rgba(255, 255, 255, 0.55);

    --forum-shadow-lg: 0 16px 40px 0 rgba(31, 38, 135, 0.18),
                       inset 0 1px 0 0 rgba(255, 255, 255, 0.6);

    /* Эффект матового стекла */
    --forum-glass-blur: blur(14px);

    /* Переходы без transform */
    --forum-transition: color 0.3s ease,
                        border-color 0.3s ease,
                        box-shadow 0.3s ease,
                        background-color 0.3s ease,
                        opacity 0.3s ease;
}

/* ============================================================================
   БЛОК 1: ФОН ФОРУМА (Кроссбраузерный подход)
============================================================================ */
#content,
#order_form {
    background-color: var(--forum-bg);
    background-image: url('/images/background-a.svg');
    background-repeat: repeat;
    background-position: left top;
    background-size: cover;
    background-attachment: scroll;
}

/* ============================================================================
   БЛОК 2: ЦВЕТА ССЫЛОК И ТЕКСТА
============================================================================ */
.forum-branch-name,
.forum-topic-name {
    color: var(--forum-text) !important;
    font-family: 'Montserrat', 'Inter', sans-serif;
    font-weight: 600;
    transition: var(--forum-transition);
}

.forum-branch-name:hover,
.forum-topic-name:hover {
    color: var(--forum-accent) !important;
}

.forum-branch-name:active,
.forum-topic-name:active {
    opacity: 0.8;
}

.forum-message-item a,
.forum-topic a:not(.forum-topic-option a) {
    color: var(--forum-accent);
    text-decoration: none;
    font-weight: 500;
    transition: var(--forum-transition);
}

.forum-message-item a:hover,
.forum-topic a:hover:not(.forum-topic-option a) {
    color: var(--forum-link-hover);
    text-decoration: underline;
}

.forum-message-item a:active,
.forum-topic a:active:not(.forum-topic-option a) {
    opacity: 0.8;
}

.forum-meta,
.forum-topic-date,
.forum-author {
    color: var(--forum-text-muted);
    font-family: 'Nunito Sans', 'Inter', sans-serif;
    font-size: 0.875rem;
}

/* ============================================================================
   БЛОК 3: КАРТОЧКИ ФОРУМА (Glassmorphism с анимацией появления)
============================================================================ */
@keyframes forumFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.forum-branch-item,
.forum-branch,
.forum-topic-list .forum-topic-item,
.forum-topic,
.forum-message-item {
    /* Fallback для старых браузеров */
    background-color: #FFFFFF;
    background-color: var(--forum-white) !important;
    
    -webkit-backdrop-filter: var(--forum-glass-blur);
    backdrop-filter: var(--forum-glass-blur);

    border: 1px solid var(--forum-border);
    box-shadow: var(--forum-shadow-md);
    border-radius: var(--forum-radius);
    padding: var(--forum-padding);

    transition: var(--forum-transition);
    animation: forumFadeIn 0.4s ease-out forwards;
}

.forum-branch-item:hover,
.forum-branch:hover,
.forum-topic-list .forum-topic-item:hover {
    background-color: #FFFFFF !important;
    background-color: var(--forum-white-hover) !important;
    border-color: rgba(224, 66, 101, 0.3);
    box-shadow: var(--forum-shadow-lg);
}

.forum-branch-item:active,
.forum-branch:active,
.forum-topic-list .forum-topic-item:active {
    box-shadow: var(--forum-shadow-sm);
}

/* ============================================================================
   БЛОК 4: ФОРМЫ И ПОЛЯ ВВОДА
============================================================================ */
.form-wrap,
.answer-form-wrap {
    background-color: #FFFFFF;
    background-color: var(--forum-white) !important;
    
    -webkit-backdrop-filter: var(--forum-glass-blur);
    backdrop-filter: var(--forum-glass-blur);

    border: 1px solid var(--forum-border);
    box-shadow: var(--forum-shadow-lg) !important;
    border-radius: var(--forum-radius);
    padding: var(--forum-padding);
}

.form-wrap {
    padding: 50px 30px !important;
    border-radius: 24px !important;
}

.forum-form-item input,
.forum-form-item textarea {
    width: 100%;

    background-color: rgba(255, 255, 255, 0.85);
    background-color: rgba(255, 255, 255, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--forum-radius-sm);
    padding: var(--forum-padding-sm);

    color: var(--forum-text);
    font-family: 'Nunito Sans', 'Inter', sans-serif;

    transition: var(--forum-transition);
}

.forum-form-item input::placeholder,
.forum-form-item textarea::placeholder {
    color: var(--forum-placeholder);
    opacity: 1;
}

.forum-form-item input:focus,
.forum-form-item textarea:focus,
.forum-form-item input:focus-visible,
.forum-form-item textarea:focus-visible {
    outline: none;
    border-color: var(--forum-accent) !important;
    box-shadow: var(--forum-focus-ring) !important;
    background-color: rgba(255, 255, 255, 0.92);
}

/* ============================================================================
   БЛОК 5: УЛУЧШЕНИЕ ЧИТАЕМОСТИ ТЕКСТОВ В СООБЩЕНИЯХ
============================================================================ */
.forum-message-item p {
    margin-bottom: 1em;
    line-height: 1.6;
}

.forum-message-item ul, 
.forum-message-item ol {
    padding-left: 20px;
    margin-bottom: 1em;
}

.forum-message-item blockquote {
    border-left: 4px solid var(--forum-accent);
    margin: 10px 0;
    padding: 10px 15px;
    background: rgba(224, 66, 101, 0.05);
    border-radius: 0 var(--forum-radius-sm) var(--forum-radius-sm) 0;
    color: var(--forum-text-muted);
}

/* ============================================================================
   БЛОК 6: ДОСТУПНОСТЬ (ACCESSIBILITY)
============================================================================ */
.forum-branch-name:focus-visible,
.forum-topic-name:focus-visible,
.forum-message-item a:focus-visible,
.forum-topic a:focus-visible,
.forum-form-item input:focus-visible,
.forum-form-item textarea:focus-visible {
    outline: 2px solid var(--forum-accent) !important;
    outline-offset: 3px !important;
    border-radius: 4px;
}