/*
  קובץ: css/forum.css
  גרסה משופרת - קומפקטית + קולאז' מתוקן
  תאריך עדכון: 20.08.2025
*/

/* ==========================================================================
   1. יסודות ומערכת עיצוב (Design System Foundation)
   ========================================================================== */
:root {
    /* -- פלטת צבעים -- */
    --color-primary: #0056b3;
    --color-primary-dark: #004494;
    --color-primary-light: #e6f0ff;
    --color-highlight: #001429;
    --color-success: #28a745;
    --color-success-light: #d4edda;
    --color-error: #dc3545;
    --color-error-light: #f8d7da;
    --color-info: #17a2b8;
    --color-info-light: #d1ecf1;
    --color-admin-title: #ffc107;
    --color-founder-bg: #212529;

    --color-text: #212529;
    --color-text-muted: #6c757d;
    --color-text-on-primary: #ffffff;
    
    --color-background: #f1f3f5;
    --color-surface: #ffffff;
    --color-surface-hover: #f8f9fa;
    --color-border: #dee2e6;
    --color-input-bg: #f8f9fa;

    /* -- טיפוגרפיה -- */
    --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.825rem;
    --font-size-md: 0.9rem;
    --font-size-lg: 1rem;
    --font-size-title: clamp(1rem, 3vw, 1.5rem);

    /* -- מרווחים -- */
    --spacing-1: 3px;
    --spacing-2: 6px;
    --spacing-3: 10px;
    --spacing-4: 14px;
    --spacing-5: 20px;
    --spacing-6: 28px;

    /* -- מאפיינים נוספים -- */
    --border-radius-sm: 3px;
    --border-radius-md: 6px;
    --border-radius-lg: 16px;
    --border-radius-pill: 9999px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 3px 6px rgba(0,0,0,0.08);
    --transition-fast: all 0.2s ease-in-out;
}

/* ==========================================================================
   2. הגדרות גלובליות וכלי עזר (Globals & Utilities)
   ========================================================================== */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-sans);
    color: var(--color-text);
    background-color: var(--color-background);
}

.hidden { display: none !important; }

.loading-state,
.empty-state-message {
    text-align: center;
    padding: var(--spacing-5);
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    font-style: italic;
}

@keyframes highlight-pulse {
  0% { background-color: rgba(0, 86, 179, 0.2); }
  100% { background-color: transparent; }
}

/* ==========================================================================
   3. מערך כללי של הפורום (Layout)
   ========================================================================== */
#forumContentContainer {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 135px);
    overflow: hidden;
}

.thread-list-view {
    overflow-y: auto;
    flex-grow: 1;
}

.thread-view {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* ==========================================================================
   4. רכיבים (Components)
   ========================================================================== */

/* --- כפתורים --- */
.button {
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}
.button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
.button-primary {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
}
.button-primary:hover { background-color: var(--color-primary-dark); }
.button-primary:disabled {
    background-color: var(--color-text-muted);
    opacity: 0.6;
    cursor: not-allowed;
}
.button-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.button-secondary:hover { background-color: var(--color-surface-hover); }
.button-danger {
    background-color: var(--color-error);
    color: var(--color-text-on-primary);
}
.button-danger:hover { background-color: #c53030; }

/* --- כותרת הפורום --- */
.forum-header {
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-3);
    flex-shrink: 0;
}
.forum-header h1 {
    margin: 0;
    font-size: var(--font-size-title);
}
.welcome-message {
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}
.welcome-message strong { color: var(--color-primary); }

/* --- רשימת אשכולות --- */
.thread-list {
    padding: var(--spacing-3);
}
.thread-item {
    display: grid;
    grid-template-columns: 3fr 1fr 2fr;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-2);
    background-color: var(--color-surface);
    cursor: pointer;
    transition: var(--transition-fast);
}
.thread-item:hover, .thread-item:focus-visible {
    background-color: var(--color-surface-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    outline: none;
}
.thread-main-info { display: flex; align-items: center; gap: var(--spacing-3); min-width: 0; }
.thread-author-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    display: flex; align-items: center; justify-content: center;
    font-weight: bold; flex-shrink: 0;
}
.thread-details { flex-grow: 1; min-width: 0; }
.thread-title { 
    margin: 0 0 var(--spacing-1) 0; font-size: var(--font-size-md); color: var(--color-primary); 
    font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.thread-meta { font-size: var(--font-size-xs); color: var(--color-text-muted); margin: 0; }
.thread-stats { display: flex; gap: var(--spacing-3); justify-content: center; text-align: center; }
.stat-item { min-width: 40px; }
.stat-value { display: block; font-size: 1.1em; font-weight: 600; color: var(--color-text); }
.thread-last-post { text-align: start; font-size: 0.8em; min-width: 0; }
.thread-last-author, .thread-last-date { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* --- תצוגת אשכול בודד --- */
.thread-view-header {
    display: flex; align-items: center; gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-surface-hover);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}
.thread-view-title { margin: 0; font-size: 1.2em; flex-grow: 1; }

.message-list-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: var(--spacing-3);
    background-color: var(--color-background);
    display: flex; flex-direction: column; gap: var(--spacing-2);
    scroll-behavior: smooth;
}
.message-bubble {
    max-width: 70%;
    padding: 5px var(--spacing-2);
    border-radius: var(--border-radius-lg);
    word-wrap: break-word;
    box-shadow: var(--shadow-sm);
}
.message-bubble.highlight-message { animation: highlight-pulse 1.5s ease-out; }
.message-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacing-1); }
.message-author { font-size: var(--font-size-xs); font-weight: bold; }
.message-text { font-size: var(--font-size-sm); line-height: 1.4; white-space: pre-wrap; }
.message-timestamp { font-size: 0.7em; margin-top: var(--spacing-1); text-align: start; opacity: 0.7; }

.other-message { background-color: var(--color-surface); align-self: flex-start; border-top-right-radius: var(--border-radius-sm); }
.other-message .message-author { color: var(--color-info); }
.my-message { background-color: var(--color-primary-light); align-self: flex-end; border-top-left-radius: var(--border-radius-sm); }
.my-message .message-author { color: var(--color-primary-dark); }

/* סגנונות מיוחדים למנהלים ומייסדים */
.admin-message {
    width: 100%; max-width: 100%;
    background-color: var(--color-highlight);
    border-radius: var(--border-radius-md);
    align-self: center !important;
    color: var(--color-text-on-primary);
}
.admin-message .message-author { color: var(--color-admin-title); font-size: var(--font-size-sm); }
.founder-message {
    background-color: var(--color-founder-bg);
    border-radius: var(--border-radius-md);
    color: var(--color-text-on-primary);
}
.founder-message .message-author { color: var(--color-text-on-primary); font-weight: bold; }

/* פעולות על הודעה */
.message-actions { opacity: 0; transition: opacity 0.2s; }
.message-bubble:hover .message-actions { opacity: 1; }
.message-action-btn { background: none; border: none; cursor: pointer; padding: 4px; margin-inline-start: 4px; }
.reply-btn { color: var(--color-text-muted); }
.reply-btn:hover { color: var(--color-primary); }
.edit-btn { color: #17a2b8; }
.edit-btn:hover { color: #117a8b; }
.delete-btn { color: #e53e3e; }
.delete-btn:hover { color: #c53030; }

/* הודעה מצוטטת */
.replied-to-message {
    background-color: rgba(0, 0, 0, 0.05);
    border-inline-start: 2px solid var(--color-info);
    padding: var(--spacing-2); margin-bottom: var(--spacing-2);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
}
.admin-message .replied-to-message, .founder-message .replied-to-message {
    background-color: rgba(255, 255, 255, 0.1);
}
.reply-link { text-decoration: none; color: inherit; display: block; }
.replied-author { font-weight: bold; }
.replied-text { color: var(--color-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* --- ✨ [משופר] גלריית תמונות חכמה בהודעה --- */
.message-images-wrapper {
    display: flex;
    gap: var(--spacing-1);
    margin-top: var(--spacing-2);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    max-height: 250px;
    width: 100%;
}
.message-images-wrapper .message-image {
    object-fit: cover;
    cursor: pointer;
    width: 100%;
    height: 100%;
    margin: 0;
    border: none;
    box-shadow: none;
    border-radius: 0;
    transition: transform 0.2s ease-in-out;
}
.message-images-wrapper .message-image:hover {
    transform: scale(1.05);
}

/* 2 תמונות: אחת ליד השנייה */
.message-images-wrapper:has(.message-image:nth-child(2)):not(:has(.message-image:nth-child(3))) {
    height: 180px;
}
.message-images-wrapper:has(.message-image:nth-child(2)):not(:has(.message-image:nth-child(3))) .message-image {
    flex: 1;
    width: 0;
}

/* --- 💡 פריסת ברירת מחדל (מובייל) ל-3 תמונות: קולאז' --- */
.message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--spacing-1);
    height: 300px;
}
.message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) .message-image:nth-child(1) {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
}
.message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) .message-image:nth-child(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
}
.message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) .message-image:nth-child(3) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
}


/* --- טופס תגובה --- */
.reply-form-area {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3);
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.02);
    flex-shrink: 0;
}
.reply-preview-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    padding-bottom: var(--spacing-2);
}
.reply-preview-text {
    color: var(--color-text-muted);
    font-style: italic;
    margin: 0 var(--spacing-2);
}
.cancel-reply-btn {
    background: none;
    border: none;
    font-size: 1.2em;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 0 var(--spacing-2);
}

.image-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding-top: var(--spacing-2);
}
.image-preview-item {
    position: relative;
    width: 60px;
    height: 60px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}
.image-preview-item .preview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.image-preview-item .remove-preview-btn {
    position: absolute;
    top: 2px;
    right: 2px;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}
.image-preview-item .remove-preview-btn:hover {
    background-color: var(--color-error);
    transform: scale(1.1);
}

.reply-form-container {
    display: flex;
    gap: var(--spacing-2);
    align-items: flex-end;
    background-color: var(--color-input-bg);
    border-radius: var(--border-radius-pill);
    padding: var(--spacing-1) var(--spacing-2) var(--spacing-1) var(--spacing-3);
    border: 1px solid transparent;
    transition: border-color 0.2s;
}
.reply-form-container:focus-within {
    border-color: var(--color-primary);
    background-color: var(--color-surface);
}

#replyTextarea {
    flex-grow: 1;
    border: none;
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-md);
    font-family: inherit;
    min-height: 22px;
    max-height: 120px;
    resize: vertical;
    background-color: transparent;
    outline: none;
}
.reply-form-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}
.upload-btn,
.send-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    height: 32px;
    width: 32px;
    font-size: 1rem;
    border-radius: 50%;
    transition: color 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.upload-btn:hover,
.send-btn:hover {
    color: var(--color-primary);
    background-color: var(--color-surface-hover);
}


/* --- התראות (Notifications) --- */
.notification {
    position: fixed;
    top: var(--spacing-3);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    font-size: var(--font-size-md);
    font-weight: 500;
    z-index: 1000;
    animation: fadeInOut 3s ease-in-out forwards;
}
.notification.success {
    background-color: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}
.notification.error {
    background-color: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}
.notification.info {
    background-color: var(--color-info-light);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        transform: translate(-50%, -15px);
    }
    15%,
    85% {
        opacity: 1;
        transform: translate(-50%, 0);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -15px);
    }
}

/* --- מודאלים (Modals) --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    animation: fadeIn 0.3s ease;
}
.modal-content {
    background: var(--color-surface);
    padding: var(--spacing-4);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    width: 90%;
    max-width: 450px;
    position: relative;
    animation: slideIn 0.3s ease-out;
}
.modal-content .close-btn {
    position: absolute;
    top: var(--spacing-2);
    right: var(--spacing-2);
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    color: var(--color-text-muted);
}
.modal-content h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-4);
    text-align: center;
}
.form-group {
    margin-bottom: var(--spacing-3);
}
.form-group label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
}
.form-group input[type="text"],
.modal-content textarea {
    width: 100%;
    padding: var(--spacing-2);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-md);
    font-family: inherit;
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ==========================================================================
   5. רספונסיביות
   ========================================================================== */
@media (max-width: 768px) {
    .thread-item {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        grid-template-areas: "main last" "stats last";
        align-items: start;
        row-gap: var(--spacing-1);
        column-gap: var(--spacing-2);
    }
    .thread-main-info {
        grid-area: main;
    }
    .thread-stats {
        grid-area: stats;
        justify-content: flex-start;
        gap: var(--spacing-2);
    }
    .thread-last-post {
        grid-area: last;
        text-align: end;
        align-self: center;
        font-size: 0.75em;
    }

    .message-bubble {
        max-width: 90%;
    }
    .forum-header,
    .thread-view-header {
        padding: var(--spacing-2) var(--spacing-3);
    }
}

/* ====== הוספה: פריסת "שליש שליש שליש" למחשב ====== */
@media (min-width: 769px) {
    /* דריסה של פריסת הקולאז' רק למסכים רחבים */
    .message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) {
        grid-template-columns: 1fr 1fr 1fr; /* שלוש עמודות שוות */
        grid-template-rows: 1fr; /* שורה אחת בלבד */
        height: 180px; /* גובה אחיד לשורה. ניתן לשנות */
    }

    /* איפוס המיקום הספציפי של כל תמונה כדי שיסתדרו אוטומטית בשורה */
    .message-images-wrapper:has(.message-image:nth-child(3)):not(:has(.message-image:nth-child(4))) .message-image {
        grid-column: unset;
        grid-row: unset;
    }
}


/* ==========================================================================
   6. Lightbox להצגת תמונות
   ========================================================================== */
body.lightbox-open {
    overflow: hidden;
}

.lightbox-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    cursor: pointer;
    animation: fadeIn 0.3s ease;
}

.lightbox-image {
    display: block;
    max-width: 85vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
    cursor: default;
}

.lightbox-close-btn {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-4);
    color: white;
    font-size: 2rem;
    font-weight: bold;
    line-height: 1;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.lightbox-close-btn:hover {
    transform: scale(1.1);
}

/* ==========================================================================
   7. סגנונות נוספים (Additions)
   ========================================================================== */

/* --- עיצוב להודעה מחוקה --- */
.message-bubble.deleted-message {
    background-color: var(--color-surface-hover);
    border: 1px dashed var(--color-border);
}

.message-bubble.deleted-message .message-text {
    font-style: italic;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* מסתיר את כותרת ההודעה המחוקה אם היא לא של מנהל/מייסד */
.message-bubble.deleted-message:not(.admin-message):not(.founder-message) .message-header {
    display: none;
}