/* ── Facebook-style Landing Page ──────────────────────────────── */

.landing-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.fb-landing {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  padding: 40px 24px 80px;
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
  min-height: 100vh;
}

/* Left */
.fb-landing-left { flex: 1; max-width: 440px; }

.fb-logo {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1;
}

.fb-tagline {
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.5;
  opacity: .9;
}

/* Right */
.fb-landing-right { flex-shrink: 0; width: 340px; }

.fb-login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 8px 40px rgba(0,0,0,.4);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fb-login-error {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.3);
  color: #f87171;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
}

.fb-login-form { display: flex; flex-direction: column; gap: 10px; }

.fb-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  padding: 13px 14px;
  outline: none;
  transition: border-color .2s;
}
.fb-input:focus { border-color: var(--primary); }
.fb-input::placeholder { color: var(--muted); }

.fb-btn-login {
  width: 100%;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  padding: 13px;
  cursor: pointer;
  transition: background .2s, transform .15s;
  margin-top: 2px;
}
.fb-btn-login:hover { background: var(--primary-hover); transform: translateY(-1px); }

.fb-forgot {
  text-align: center;
  display: block;
  color: var(--primary);
  font-size: 13px;
  text-decoration: none;
}
.fb-forgot:hover { text-decoration: underline; }

.fb-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.fb-btn-register {
  display: block;
  width: fit-content;
  margin: 0 auto;
  background: var(--success);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  padding: 12px 28px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background .2s, transform .15s;
}
.fb-btn-register:hover { background: var(--success-dark); transform: translateY(-1px); }


.fb-landing-footer {
  text-align: center;
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted);
}
.fb-landing-footer a { color: var(--text-sub); text-decoration: none; }
.fb-landing-footer a:hover { color: var(--text); }

@media (max-width: 700px) {
  .fb-landing {
    flex-direction: column;
    gap: 32px;
    align-items: center;
    padding-top: 60px;
  }
  .fb-landing-left { text-align: center; }
  .fb-logo { font-size: 38px; }
  .fb-tagline { font-size: 18px; }
  .fb-landing-right { width: 100%; max-width: 380px; }
}

/* ── Social Layout ─────────────────────────────────────────────── */

.social-body .topbar-nav { display: none; } /* sidebar takes over nav */

.social-layout {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
  padding: 68px 20px 60px;
  box-sizing: border-box;
  position: relative;
  z-index: 1;
}

/* Center layout only on ultra-wide (21:9+) monitors */
@media (min-width: 2200px) {
  .social-layout {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ── Left Sidebar ──────────────────────────────────────────────── */
.social-sidebar-left {
  flex: 0 0 260px;
  width: 260px;
  position: sticky;
  top: 68px;
  max-height: calc(100vh - 68px);
  overflow-y: auto;
  scrollbar-width: none;
}
.social-sidebar-left::-webkit-scrollbar { display: none; }

.social-user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: 4px;
  text-decoration: none;
  color: inherit;
  transition: background .2s;
}
.social-user-card:hover { background: var(--card-hover); }

.social-user-name {
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
}
.social-user-level { font-size: 12px; color: var(--text-sub); }

.social-nav {
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.social-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  text-decoration: none;
  transition: background .15s, color .15s;
}
.social-nav-item:hover { background: var(--card-hover); color: var(--text); }

/* ── Avatar ────────────────────────────────────────────────────── */
.social-avatar-wrap {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  overflow: hidden;
}
.social-avatar-wrap.sm  { width: 36px; height: 36px; }
.social-avatar-wrap.xs  { width: 28px; height: 28px; }

.social-avatar-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.social-avatar-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}
.social-avatar-placeholder.sm { font-size: 14px; }
.social-avatar-placeholder.xs { font-size: 11px; }

/* ── Feed ──────────────────────────────────────────────────────── */
.social-feed { flex: 1; min-width: 0; display: flex; flex-direction: column; font-size: 0; padding: 0 60px; box-sizing: border-box; }
.social-feed > * { font-size: 1rem; width: 100%; }
.social-feed > * + * { margin-top: 20px; }
#feed-list { display: flex; flex-direction: column; gap: 20px; width: 100%; }

/* Create Post */
.create-post-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.create-post-top {
  display: flex;
  align-items: center;
  gap: 12px;
}
.create-post-trigger {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 10px 16px;
  color: var(--text-sub);
  font-size: 14px;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.create-post-trigger:hover { background: var(--card-hover); border-color: rgba(var(--primary-rgb),0.3); }

.create-post-form { margin-top: 12px; }
.create-post-textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  padding: 12px;
  resize: vertical;
  outline: none;
  transition: border-color .2s;
  line-height: 1.6;
}
.create-post-textarea:focus { border-color: var(--primary); }

.cp-img-preview-wrap {
  position: relative;
  display: inline-block;
  margin-top: 10px;
}
.cp-img-preview {
  max-width: 100%;
  max-height: 240px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  object-fit: contain;
  display: block;
}
.cp-remove-img {
  position: absolute; top:6px; right:6px;
  background: rgba(0,0,0,.65); border: none; border-radius: 20px;
  color:#fff; font-size:12px; padding:3px 9px; cursor:pointer;
  transition: background .2s;
}
.cp-remove-img:hover { background: rgba(239,68,68,.8); }

.create-post-actions {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 10px;
}
.cp-img-btn {
  font-size: 20px; cursor: pointer; padding: 4px 8px;
  border-radius: var(--radius-sm); transition: background .2s;
}
.cp-img-btn:hover { background: var(--card-hover); }
.cp-submit-btn {
  background: var(--primary); color: #fff; border: none;
  border-radius: var(--radius-sm); font-size: 14px; font-weight: 600;
  padding: 9px 20px; cursor: pointer; transition: background .2s;
}
.cp-submit-btn:hover { background: var(--primary-hover); }
.cp-submit-btn:disabled { opacity: .5; cursor: default; }

/* Post Card */
.post-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.post-header {
  display: flex; align-items: center; gap: 10px;
}
.post-meta { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.post-author {
  font-weight: 700; font-size: 14px;
  color: var(--text); text-decoration: none;
}
.post-author:hover { text-decoration: underline; }
.post-time   { font-size: 12px; color: var(--muted); text-decoration: none; }
.post-time:hover { text-decoration: underline; }

.post-delete-btn {
  background: rgba(220,38,38,.15); border: 1px solid rgba(220,38,38,.3); font-size: 15px; cursor: pointer;
  color: #f87171; padding: 4px 9px; border-radius: var(--radius-sm);
  transition: background .2s, color .2s;
}
.post-delete-btn:hover { background: rgba(220,38,38,.85); color: #fff; border-color: transparent; }

.post-text {
  font-size: 15px; line-height: 1.7; word-break: break-word;
}
.post-image {
  width: 100%; max-height: 480px; object-fit: contain;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  cursor: zoom-in;
}

/* Multi-image grid */
.post-images-grid {
  display: grid;
  gap: 3px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}
.post-images-grid.n1 { grid-template-columns: 1fr; }
.post-images-grid.n2 { grid-template-columns: 1fr 1fr; }
.post-images-grid.n3 { grid-template-columns: 1fr 1fr; }
.post-images-grid.n3 > :first-child { grid-column: span 2; }
.post-images-grid.n4 { grid-template-columns: 1fr 1fr; }
.post-image-thumb {
  width: 100%; height: 200px; object-fit: cover;
  cursor: zoom-in; display: block;
}
.post-images-grid.n1 .post-image-thumb {
  height: auto; max-height: 480px; object-fit: contain;
}

/* Create-post multi-image previews */
.cp-img-previews {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 6px;
  margin-top: 10px;
}
.cp-img-thumb-wrap { position: relative; }
.cp-img-thumb {
  width: 100%; height: 90px; object-fit: cover;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  display: block;
}
.cp-rm-thumb {
  position: absolute; top: 3px; right: 3px;
  background: rgba(0,0,0,.65); border: none; border-radius: 20px;
  color: #fff; font-size: 11px; padding: 2px 7px; cursor: pointer; line-height: 1.4;
}
.cp-rm-thumb:hover { background: rgba(239,68,68,.8); }

/* ── Lightbox ──────────────────────────────────────────────── */
#vs-lightbox {
  position: fixed; inset: 0;
  z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s ease;
}
#vs-lightbox.vlb-open {
  pointer-events: auto;
  opacity: 1;
}
.vlb-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.88);
  backdrop-filter: blur(6px);
}
.vlb-close {
  position: absolute; top: 18px; right: 22px;
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08);
  color: #fff; font-size: 18px;
  cursor: pointer; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.vlb-close:hover { background: rgba(255,255,255,.18); }
.vlb-content {
  position: relative; z-index: 1;
  max-width: 92vw; max-height: 90vh;
  display: flex; align-items: center; justify-content: center;
  transform: scale(.92);
  transition: transform .22s cubic-bezier(.2,.9,.2,1);
}
#vs-lightbox.vlb-open .vlb-content { transform: scale(1); }
.vlb-img {
  max-width: 100%; max-height: 90vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0,0,0,.7);
  display: block;
}

/* ── Post like/comment meta row ────────────────────────────────── */
.post-like-meta {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 14px 2px; font-size: 13px;
}
.post-like-meta.hidden { display: none; }
.post-meta-likes {
  display: flex; align-items: center; gap: 4px;
  background: none; border: none; cursor: pointer;
  color: var(--text-sub); font-size: 13px; padding: 0;
  transition: opacity .15s;
}
.post-meta-likes:hover { opacity: .75; }
.post-meta-likes.hidden { display: none; }
.post-meta-count { font-weight: 500; }
.post-meta-right {
  color: var(--muted); font-size: 13px; cursor: pointer;
}
.post-meta-right:hover { text-decoration: underline; }
.post-meta-right.hidden { display: none; }

/* ── Post action bar ────────────────────────────────────────────── */
.post-actions {
  display: flex; align-items: center;
  padding: 2px 0; margin-top: 0;
  border-top: 1px solid var(--border);
}
.post-act-left {
  display: flex; flex: 1; min-width: 0;
}
.post-like-btn, .post-comment-btn, .post-share-btn {
  flex: 1;
  background: transparent; border: none; cursor: pointer;
  color: var(--text-sub); font-size: 14px; font-weight: 500;
  padding: 9px 6px; border-radius: 0;
  transition: background .15s, color .15s;
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.post-like-btn:hover, .post-comment-btn:hover, .post-share-btn:hover { background: var(--card-hover); color: var(--text); }
.post-like-btn.liked { color: #f87171; }
.post-like-btn, .post-comment-btn { border-right: 1px solid var(--border); }

/* Comments */
.post-comments { border-top: 1px solid var(--border); padding-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.comment-item { display: flex; align-items: flex-start; gap: 8px; }
.comment-body { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.comment-bubble { background: rgba(255,255,255,.05); border-radius: 12px; padding: 8px 12px; font-size: 13px; display: inline-block; max-width: 100%; }
.comment-author {
  font-weight: 600; margin-right: 6px;
  color: var(--text); text-decoration: none;
}
.comment-author:hover { text-decoration: underline; }
.comment-text { color: var(--text); }
.comments-empty { color: var(--muted); font-size: 13px; text-align: center; padding: 8px; }
.comment-actions { display: flex; align-items: center; gap: 10px; padding: 0 4px; }
.comment-time { font-size: 11px; color: var(--muted); }
.comment-action-btn {
  background: none; border: none; font-size: 11px; font-weight: 700;
  color: var(--muted); cursor: pointer; padding: 0;
  transition: color .15s; display: flex; align-items: center; gap: 3px;
}
.comment-action-btn:hover { color: var(--text); }
.comment-del-btn:hover { color: #f87171 !important; }
.comment-action-btn.liked { color: #f87171; }
.comment-replies { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.reply-input-row { margin-top: 4px; display: flex; }
.comment-input-row { display: flex; }
.comment-input {
  flex: 1; background: rgba(255,255,255,.05); border: 1px solid var(--border);
  border-radius: 24px; color: var(--text); font-size: 13px; padding: 8px 14px;
  outline: none; transition: border-color .2s;
}
.comment-input:focus { border-color: var(--primary); }

.feed-loading { text-align: center; color: var(--muted); padding: 20px; font-size: 14px; }
.feed-end { text-align: center; color: var(--muted); padding: 16px; font-size: 13px; }

.post-bumped { animation: postBump .6s ease-out; }
@keyframes postBump {
  0%   { outline: 2px solid rgba(var(--primary-rgb),.6); }
  100% { outline: 2px solid transparent; }
}

/* ── Right spacer (balances left sidebar so feed stays centered) ── */
.social-sidebar-spacer {
  flex: 0 0 260px;
  width: 260px;
}

/* ── Right Sidebar ─────────────────────────────────────────────── */
.social-sidebar-right { position: sticky; top: 72px; display: flex; flex-direction: column; gap: 12px; }

.social-widget {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.social-widget-title { font-size: 13px; font-weight: 700; color: var(--text-sub); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .5px; }
.social-widget-empty { color: var(--muted); font-size: 13px; }

.friend-req-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 0; border-bottom: 1px solid var(--border);
}
.friend-req-item:last-child { border-bottom: none; }
.friend-req-name { font-size: 13px; font-weight: 600; }
.friend-req-btns { display: flex; gap: 4px; }
.freq-accept, .freq-decline {
  border: none; border-radius: 6px; font-size: 13px; padding: 3px 8px; cursor: pointer; transition: background .15s;
}
.freq-accept  { background: rgba(16,185,129,.2); color: #34d399; }
.freq-accept:hover  { background: rgba(16,185,129,.4); }
.freq-decline { background: rgba(239,68,68,.15); color: #f87171; }
.freq-decline:hover { background: rgba(239,68,68,.3); }

.friend-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 0; border-bottom: 1px solid var(--border);
}
.friend-item:last-child { border-bottom: none; }
.friend-item-name { font-size: 13px; color: var(--text-sub); }

.social-add-friend { display: flex; gap: 6px; margin-top: 10px; }
.social-add-friend-input {
  flex:1; background: rgba(255,255,255,.05); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-size: 13px; padding: 7px 10px;
  outline: none; transition: border-color .2s;
}
.social-add-friend-input:focus { border-color: var(--primary); }
.social-add-friend-btn {
  background: var(--primary); color:#fff; border:none; border-radius: var(--radius-sm);
  font-size:12px; font-weight:600; padding: 7px 12px; cursor:pointer; white-space:nowrap;
  transition: background .2s;
}
.social-add-friend-btn:hover { background: var(--primary-hover); }
.add-friend-msg { font-size:12px; margin-top:6px; }
.add-friend-msg.ok { color:#34d399; }
.add-friend-msg.err { color:#f87171; }

.lk-who { cursor: pointer; }
.lk-who:hover { opacity: .75; }
.lk-who-story { cursor: pointer; }


/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1280px) {
  .social-sidebar-left { flex: 0 0 220px; width: 220px; }
  .social-sidebar-spacer { flex: 0 0 220px; width: 220px; }
}
@media (max-width: 1024px) {
  .social-sidebar-left { flex: 0 0 180px; width: 180px; }
  .social-sidebar-spacer { flex: 0 0 180px; width: 180px; }
}
@media (max-width: 680px) {
  .social-layout { flex-direction: column; padding: 62px 0 40px; }
  .social-sidebar-left { display: none; }
  .social-sidebar-spacer { display: none; }
  .social-body .topbar-nav { display: flex; }
  .social-feed { width: 100%; max-width: 540px; margin: 0 auto; padding: 0; box-sizing: border-box; }

  /* Edge-to-edge create post */
  .create-post-card {
    border-radius: 0;
    border-left: none; border-right: none;
    padding: 10px 14px;
  }
  /* Edge-to-edge post cards */
  .post-card {
    border-radius: 0;
    border-left: none; border-right: none;
    padding: 12px 0;
    gap: 0;
    margin-bottom: 8px;
  }
  .post-header { padding: 0 14px 8px; }
  .post-text { padding: 0 14px 8px; }
  .post-images-grid { border-radius: 0; border-left: none; border-right: none; margin: 0; }
  .post-comments { padding: 8px 14px 0; }
  .post-like-meta.has-likes { padding: 6px 14px 0; }

  .post-like-meta { padding: 6px 14px 2px; }
  .post-actions { padding: 2px 0; }

  /* Stories: edge-to-edge */
  #stories-row {
    margin: 0;
    padding: 10px 10px;
    border-radius: 0;
  }
}

/* ── Light Mode ──────────────────────────────────────────────────── */
[data-theme="light"] .comment-bubble { background: rgba(0,0,0,.05); }
[data-theme="light"] .comment-input { background: var(--surface); border-color: var(--border); color: var(--text); }
[data-theme="light"] .social-add-friend-input { background: var(--surface); }
[data-theme="light"] .create-post-trigger { background: var(--bg); }
[data-theme="light"] .create-post-textarea { background: var(--surface); color: var(--text); }
[data-theme="light"] .post-author { color: var(--primary); }
[data-theme="light"] .post-act-btn { color: var(--text-sub); }
[data-theme="light"] .post-act-btn:hover { background: rgba(0,0,0,.05); color: var(--text); }
[data-theme="light"] .post-like-btn { color: var(--text-sub); background: none; }
[data-theme="light"] .post-like-btn:hover { background: rgba(0,0,0,.05); }
[data-theme="light"] .post-comment-btn { color: var(--text-sub); background: none; }
[data-theme="light"] .post-comment-btn:hover { background: rgba(0,0,0,.05); }
[data-theme="light"] .post-share-btn { color: var(--text-sub); background: none; }
[data-theme="light"] .post-share-btn:hover { background: rgba(0,0,0,.05); }
[data-theme="light"] .post-delete-btn { background: rgba(0,0,0,.08); color: var(--text-sub); border-color: rgba(0,0,0,.12); }
[data-theme="light"] .freq-accept { background: rgba(16,185,129,.15); }
[data-theme="light"] .freq-decline { background: rgba(239,68,68,.1); }