/* ================================================================
   COMMUNITY CSS — المجتمع الهندسي
   ================================================================ */
:root {
  --cm-bg:       #0e0e0e;
  --cm-surface:  #161616;
  --cm-card:     #1a1a1a;
  --cm-border:   rgba(255,255,255,.07);
  --cm-red:      #e53935;
  --cm-gold:     #f0a500;
  --cm-blue:     #7c7cff;
  --cm-green:    #4caf50;
  --cm-text:     #e0e0e0;
  --cm-muted:    #888;
  --cm-trans:    .2s ease;
}

/* ── Layout ── */
.cm-layout {
  max-width: 680px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

/* ── Header ── */
.cm-header {
  background: linear-gradient(135deg, rgba(229,57,53,.12), rgba(124,124,255,.08));
  border: 1px solid rgba(229,57,53,.2);
  border-radius: 18px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.cm-header-inner {
  padding: 1.5rem 1.75rem;
}
.cm-header-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.cm-header-title > i {
  font-size: 2rem;
  color: var(--cm-red);
  flex-shrink: 0;
}
.cm-header-title h1 {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  margin: 0 0 .2rem;
}
.cm-header-title p {
  font-size: .82rem;
  color: var(--cm-muted);
  margin: 0;
}

/* ── Card base ── */
.cm-card {
  background: var(--cm-card);
  border: 1px solid var(--cm-border);
  border-radius: 16px;
  margin-bottom: 1rem;
  overflow: hidden;
}

/* ── Compose box ── */
.cm-compose {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .9rem 1.1rem;
  cursor: pointer;
  transition: border-color var(--cm-trans);
}
.cm-compose:hover { border-color: rgba(229,57,53,.3); }
.cm-compose-trigger {
  flex: 1;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--cm-border);
  border-radius: 24px;
  color: var(--cm-muted);
  padding: .7rem 1.1rem;
  font-family: inherit;
  font-size: .9rem;
  text-align: right;
  cursor: pointer;
  transition: background var(--cm-trans), border-color var(--cm-trans);
}
.cm-compose-trigger:hover { background: rgba(255,255,255,.08); border-color: rgba(229,57,53,.3); }

/* ── Compose modal ── */
.cm-modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  z-index: 9998;
}
.cm-modal-overlay.open { display: block; }
.cm-modal {
  display: none;
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -55%);
  width: min(580px, 96vw);
  background: #1e1e1e;
  border: 1px solid rgba(229,57,53,.25);
  border-radius: 20px;
  z-index: 9999;
  box-shadow: 0 30px 80px rgba(0,0,0,.8);
  animation: cmFadeIn .2s ease;
}
.cm-modal.open { display: block; }
@keyframes cmFadeIn { from { opacity: 0; transform: translate(-50%,-60%); } to { opacity: 1; transform: translate(-50%,-55%); } }

.cm-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--cm-border);
  font-weight: 700;
  color: #fff;
}
.cm-modal-close {
  background: none; border: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--cm-muted); cursor: pointer; font-size: 1rem;
  transition: background var(--cm-trans);
}
.cm-modal-close:hover { background: rgba(229,57,53,.2); color: var(--cm-red); }

.cm-modal-body { padding: 1.1rem 1.25rem 1.25rem; }
.cm-compose-user {
  display: flex; align-items: center; gap: .65rem;
  margin-bottom: .85rem;
  font-size: .9rem; color: #ddd;
}
.cm-compose-user-img {
  width: 38px; height: 38px; border-radius: 50%; object-fit: cover;
}
.cm-compose-text {
  width: 100%; resize: vertical;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--cm-border);
  border-radius: 12px;
  color: var(--cm-text);
  font-family: inherit; font-size: .95rem;
  padding: .8rem 1rem;
  outline: none;
  transition: border-color var(--cm-trans);
}
.cm-compose-text:focus { border-color: rgba(229,57,53,.4); }
.cm-compose-charcount { text-align: left; font-size: .74rem; color: var(--cm-muted); margin-top: .3rem; }

.cm-media-preview { margin: .6rem 0; border-radius: 10px; overflow: hidden; }
.cm-compose-actions {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: .75rem;
}
.cm-compose-media { display: flex; gap: .5rem; }
.cm-media-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  color: var(--cm-muted);
  cursor: pointer;
  transition: background var(--cm-trans), color var(--cm-trans);
  font-size: 1rem;
}
.cm-media-btn:hover { background: rgba(229,57,53,.15); color: var(--cm-red); }

.cm-post-btn {
  background: var(--cm-red);
  color: #fff; border: none;
  padding: .6rem 1.3rem;
  border-radius: 20px;
  font-family: inherit; font-size: .9rem; font-weight: 700;
  cursor: pointer;
  display: flex; align-items: center; gap: .4rem;
  transition: background var(--cm-trans), transform var(--cm-trans);
}
.cm-post-btn:hover { background: #c62828; transform: translateY(-1px); }
.cm-post-btn.sm { padding: .45rem 1rem; font-size: .82rem; }

/* ── Avatar ── */
.cm-avatar-placeholder {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(229,57,53,.15);
  display: flex; align-items: center; justify-content: center;
  color: var(--cm-red); font-size: 1.1rem; flex-shrink: 0;
}
.cm-avatar-placeholder.sm { width: 34px; height: 34px; font-size: .85rem; }
.cm-avatar-placeholder.lg { width: 56px; height: 56px; font-size: 1.4rem; }
.cm-avatar-placeholder.xl { width: 88px; height: 88px; font-size: 2rem; }

/* ── Role badge ── */
.cm-role-badge {
  display: inline-flex; align-items: center; gap: .25rem;
  font-size: .7rem; font-weight: 700;
  padding: .15rem .55rem;
  border-radius: 20px;
  background: rgba(255,255,255,.08);
  color: var(--cm-muted);
  text-transform: capitalize;
  white-space: nowrap;
}
.cm-role-badge.instructor { background: rgba(124,124,255,.15); color: var(--cm-blue); }
.cm-role-badge.owner      { background: rgba(240,165,0,.15);   color: var(--cm-gold); }
.cm-role-badge.lg { font-size: .8rem; padding: .2rem .7rem; }
.cm-role-badge.sm { font-size: .65rem; padding: .1rem .45rem; }

/* ── Post card ── */
.cm-post { transition: border-color var(--cm-trans); }
.cm-post:hover { border-color: rgba(229,57,53,.15); }

.cm-post-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1rem .5rem;
}
.cm-post-author {
  display: flex; align-items: center; gap: .7rem;
  text-decoration: none; flex: 1;
}
.cm-post-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  object-fit: cover; flex-shrink: 0;
  border: 2px solid rgba(229,57,53,.2);
}
.cm-post-avatar.lg { width: 56px; height: 56px; }
.cm-post-author-info {
  display: flex; flex-direction: column; gap: .1rem;
}
.cm-post-author-info strong { font-size: .9rem; color: #fff; display: block; }
.cm-post-time { font-size: .73rem; color: var(--cm-muted); display: block; margin-top: .1rem; }

.cm-post-body { padding: .35rem 1rem .75rem; }
.cm-post-text { font-size: .93rem; color: var(--cm-text); line-height: 1.65; white-space: pre-line; margin: 0; }
.cm-post-text.lg { font-size: 1rem; line-height: 1.75; }
.cm-post-media {
  margin-top: .75rem; border-radius: 12px; overflow: hidden;
  background: #000; max-height: 480px;
}
.cm-post-media img {
  width: 100%; max-height: 480px; object-fit: contain;
  cursor: zoom-in; display: block;
}
.cm-post-media video { width: 100%; max-height: 480px; display: block; }

.cm-post-stats {
  display: flex; gap: 1rem;
  padding: .4rem 1rem;
  border-top: 1px solid var(--cm-border);
  font-size: .78rem; color: var(--cm-muted);
}

.cm-post-actions {
  display: flex; gap: .25rem;
  padding: .35rem .65rem .6rem;
  border-top: 1px solid var(--cm-border);
}
.cm-action-btn {
  display: flex; align-items: center; gap: .4rem;
  background: none; border: none;
  color: var(--cm-muted);
  padding: .5rem .75rem;
  border-radius: 8px;
  font-family: inherit; font-size: .82rem;
  cursor: pointer; text-decoration: none;
  transition: background var(--cm-trans), color var(--cm-trans);
}
.cm-action-btn:hover { background: rgba(229,57,53,.1); color: var(--cm-red); }
.cm-action-btn.cm-like-btn.liked { color: var(--cm-red); }
.cm-action-btn.cm-like-btn.liked i { animation: heartPop .3s ease; }
@keyframes heartPop { 0% { transform: scale(1); } 50% { transform: scale(1.4); } 100% { transform: scale(1); } }

.cm-del-btn {
  background: none; border: none;
  color: #555; cursor: pointer;
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; transition: background var(--cm-trans), color var(--cm-trans);
}
.cm-del-btn:hover { background: rgba(229,57,53,.15); color: var(--cm-red); }
.cm-del-btn.xs { width: 26px; height: 26px; font-size: .7rem; }

/* ── Comments ── */
.cm-section-title {
  font-size: .85rem; font-weight: 800;
  color: var(--cm-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
  display: flex; align-items: center; gap: .4rem;
  padding: .85rem 1rem .6rem;
  border-bottom: 1px solid var(--cm-border);
}
.cm-comment-form { padding: .85rem 1rem; border-bottom: 1px solid var(--cm-border); }
.cm-comment-input-row { display: flex; gap: .65rem; align-items: flex-start; }
.cm-comment-avatar { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.cm-comment-input-wrap { flex: 1; }
.cm-comment-input {
  width: 100%; resize: none;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--cm-border);
  border-radius: 10px; padding: .6rem .85rem;
  color: var(--cm-text); font-family: inherit; font-size: .87rem;
  outline: none; transition: border-color var(--cm-trans);
}
.cm-comment-input:focus { border-color: rgba(229,57,53,.35); }
.cm-comment-submit { display: flex; justify-content: flex-end; margin-top: .5rem; }
.cm-login-note { padding: .75rem 1rem; color: var(--cm-muted); font-size: .85rem; }
.cm-login-note a { color: var(--cm-red); }

.cm-comments-list { padding: .5rem 0; }
.cm-comment {
  display: flex; gap: .6rem;
  padding: .7rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.03);
}
.cm-comment:last-child { border-bottom: none; }
.cm-reply { padding-right: 2.5rem; background: rgba(255,255,255,.015); }
.cm-comment-body { flex: 1; min-width: 0; }
.cm-comment-head {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: .35rem; margin-bottom: .25rem;
}
.cm-comment-user {
  font-size: .83rem; font-weight: 700; color: #ddd;
  text-decoration: none;
  display: flex; align-items: center; gap: .3rem;
}
.cm-comment-user:hover { color: var(--cm-red); }
.cm-comment-time { font-size: .7rem; color: var(--cm-muted); }
.cm-comment-text { font-size: .87rem; color: var(--cm-text); line-height: 1.55; margin: 0; }
.cm-reply-toggle {
  background: none; border: none; color: var(--cm-muted);
  font-size: .74rem; cursor: pointer; font-family: inherit;
  display: flex; align-items: center; gap: .25rem;
  margin-top: .35rem; padding: 0;
  transition: color var(--cm-trans);
}
.cm-reply-toggle:hover { color: var(--cm-red); }
.cm-reply-form { margin-top: .6rem; }
.cm-empty-comments {
  display: flex; flex-direction: column; align-items: center;
  padding: 2rem 1rem; color: var(--cm-muted);
  gap: .5rem;
}
.cm-empty-comments i { font-size: 2rem; opacity: .4; }

/* ── Profile ── */
.cm-profile-card { overflow: visible; }
.cm-profile-cover {
  height: 100px;
  background: linear-gradient(135deg, rgba(229,57,53,.25), rgba(124,124,255,.2), rgba(240,165,0,.15));
  border-radius: 16px 16px 0 0;
}
.cm-profile-main {
  display: flex; align-items: flex-end; gap: 1rem;
  padding: 0 1.25rem 1.25rem;
  margin-top: -44px;
  flex-wrap: wrap;
}
.cm-profile-avatar-wrap { flex-shrink: 0; }
.cm-profile-avatar {
  width: 88px; height: 88px;
  border-radius: 50%; object-fit: cover;
  border: 4px solid #1a1a1a;
}
.cm-profile-info { flex: 1; min-width: 0; padding-top: 50px; }
.cm-profile-name { font-size: 1.25rem; font-weight: 900; color: #fff; margin: 0 0 .15rem; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.cm-profile-username { font-size: .83rem; color: var(--cm-muted); margin: 0 0 .5rem; }
.cm-profile-bio { font-size: .85rem; color: #aaa; margin: 0 0 .75rem; line-height: 1.55; }
.cm-profile-stats { display: flex; gap: 1.5rem; margin-bottom: .85rem; }
.cm-profile-stat { display: flex; flex-direction: column; align-items: center; }
.cm-profile-stat-num { font-size: 1.2rem; font-weight: 900; color: #fff; }
.cm-profile-stat-lbl { font-size: .75rem; color: var(--cm-muted); }
.cm-profile-edit-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  color: #ddd; text-decoration: none;
  padding: .45rem 1rem; border-radius: 20px;
  font-size: .83rem; font-weight: 600;
  transition: background var(--cm-trans);
}
.cm-profile-edit-btn:hover { background: rgba(229,57,53,.15); border-color: rgba(229,57,53,.3); color: var(--cm-red); }

/* ── Back button ── */
.cm-back-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  color: var(--cm-muted); text-decoration: none; font-size: .85rem;
  margin-bottom: .75rem;
  padding: .4rem .85rem; border-radius: 8px;
  transition: background var(--cm-trans), color var(--cm-trans);
}
.cm-back-btn:hover { background: rgba(255,255,255,.05); color: #fff; }

/* ── Login CTA ── */
.cm-login-cta {
  display: flex; flex-direction: column; align-items: center;
  gap: .75rem; padding: 2rem;
  color: var(--cm-muted); text-align: center;
}
.cm-login-cta i { font-size: 2.5rem; color: var(--cm-red); opacity: .7; }
.cm-cta-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--cm-red); color: #fff;
  text-decoration: none; padding: .6rem 1.3rem;
  border-radius: 20px; font-size: .88rem; font-weight: 700;
  transition: background var(--cm-trans);
}
.cm-cta-btn:hover { background: #c62828; }

/* ── Empty ── */
.cm-empty {
  display: flex; flex-direction: column; align-items: center;
  gap: .75rem; padding: 2.5rem; color: var(--cm-muted); text-align: center;
}
.cm-empty i { font-size: 2.5rem; opacity: .3; }

/* ── Post full (detail page) ── */
.cm-post-full .cm-post-body { padding-bottom: 1rem; }

/* ── Pagination ── */
.cm-pagination {
  display: flex; align-items: center; justify-content: center; gap: 1rem;
  padding: 1rem;
}
.cm-page-btn {
  display: inline-flex; align-items: center; gap: .35rem;
  background: rgba(255,255,255,.06); border: 1px solid var(--cm-border);
  color: var(--cm-text); text-decoration: none;
  padding: .5rem 1rem; border-radius: 8px; font-size: .83rem;
  transition: background var(--cm-trans);
}
.cm-page-btn:hover { background: rgba(229,57,53,.15); border-color: rgba(229,57,53,.3); color: var(--cm-red); }
.cm-page-info { font-size: .82rem; color: var(--cm-muted); }

/* ── Lightbox ── */
.cm-lightbox {
  display: none; position: fixed; inset: 0; z-index: 99999;
  background: rgba(0,0,0,.95); align-items: center; justify-content: center;
  cursor: zoom-out;
}
.cm-lightbox.open { display: flex; }
.cm-lightbox img {
  max-width: 95vw; max-height: 95vh; object-fit: contain;
  border-radius: 8px;
  animation: cmFadeIn .2s ease;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .cm-layout { padding: 1rem .6rem 2.5rem; }
  .cm-header-title h1 { font-size: 1.15rem; }
  .cm-post-header { padding: .7rem .75rem .4rem; }
  .cm-post-body { padding: .25rem .75rem .6rem; }
  .cm-post-actions { padding: .3rem .5rem .5rem; }
  .cm-action-btn { padding: .45rem .55rem; font-size: .78rem; }
  .cm-modal { width: 99vw; max-height: 95vh; overflow-y: auto; top: 50%; }
  .cm-profile-main { flex-direction: column; align-items: flex-start; }
  .cm-profile-info { padding-top: .75rem; }
}