/* Ortak üst navigasyon — feed / forum / gruplar */
.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 400;
  height: 58px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border, #e2e8f0);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
}
html.dark .topnav {
  background: rgba(12, 15, 26, 0.92);
  border-bottom-color: #1a2236;
}

.topnav-logo {
  font-family: 'Instrument Serif', serif;
  font-size: 1.35rem;
  color: var(--blue-700, #1d4ed8);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  text-decoration: none;
}
html.dark .topnav-logo {
  color: #93c5fd;
}
.topnav-logo a {
  text-decoration: none;
  color: inherit;
}
.logo-dot {
  width: 7px;
  height: 7px;
  background: var(--blue-500, #3b82f6);
  border-radius: 50%;
  animation: gm-nav-pulse 2s infinite;
}
@keyframes gm-nav-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.3);
  }
}

.topnav-spacer {
  flex: 1;
  min-width: 0;
}

.topnav-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
}

@media (max-width: 900px) {
  .topnav {
    padding: 0 0.65rem;
    gap: 0.35rem;
  }

  .topnav-logo {
    font-size: 1.05rem;
    max-width: min(44vw, 190px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .topnav-actions {
    gap: 0.2rem;
  }

  .icon-btn,
  .theme-btn,
  .user-av {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
  }

  .dp-panel {
    max-width: min(100vw - 1rem, 360px);
    right: 0;
  }
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--muted, #64748b);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background 0.15s;
  position: relative;
  flex-shrink: 0;
}
.icon-btn:hover {
  background: var(--gray-100, #f1f5f9);
}
html.dark .icon-btn:hover {
  background: #1a2236;
}

.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border, #e2e8f0);
  background: var(--gray-50, #f8faff);
  color: var(--text, #0f172a);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
html.dark .theme-btn {
  background: #131828;
  border-color: #1e2d4a;
}

.user-av,
.user-avatar-nav {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--blue-100, #dbeafe);
  cursor: pointer;
  flex-shrink: 0;
  overflow: hidden;
}

.notif-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 9px;
  height: 9px;
  background: var(--blue-500, #3b82f6);
  border-radius: 50%;
  border: 2px solid var(--card, #fff);
  pointer-events: none;
  display: none;
}
.notif-badge.on {
  display: block;
}

.dp-wrap {
  position: relative;
}
.dp-panel,
.dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 340px;
  background: var(--card, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 18px;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.16);
  z-index: 500;
  overflow: hidden;
}
html.dark .dp-panel,
html.dark .dropdown-panel {
  background: #131828;
  border-color: #1e2d4a;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
}
.dp-panel.open,
.dropdown-panel.open {
  display: block;
  animation: gm-drop-in 0.2s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* Canlı mesaj paneli (msg_nav) — flex düzeni */
.dp-panel.gm-msg-panel,
.dropdown-panel.gm-msg-panel {
  display: none;
  flex-direction: column;
  padding: 0;
}
.dp-panel.gm-msg-panel.open,
.dropdown-panel.gm-msg-panel.open {
  display: flex !important;
}
@keyframes gm-drop-in {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.dp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.1rem 0.6rem;
  border-bottom: 1px solid var(--border, #e2e8f0);
}
.dp-title {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text, #0f172a);
}
.dp-mark {
  background: none;
  border: none;
  font-size: 0.72rem;
  color: var(--blue-600, #2563eb);
  cursor: pointer;
  font-family: inherit;
  padding: 0;
}
.dp-mark:hover {
  text-decoration: underline;
}
.dp-list {
  max-height: 264px;
  overflow-y: auto;
}
.dp-item {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--border, #e2e8f0);
  cursor: pointer;
  transition: background 0.15s;
}
.dp-item:hover {
  background: var(--gray-50, #f8faff);
}
.dp-item.unread {
  background: var(--blue-50, #eff6ff);
}
.dp-av {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dp-av.sys {
  background: var(--gray-100, #f1f5f9);
  color: var(--muted, #64748b);
  font-size: 1rem;
}
.dp-body {
  flex: 1;
  overflow: hidden;
}
.dp-txt {
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--muted, #64748b);
}
.dp-txt b {
  color: var(--text, #0f172a);
  font-weight: 500;
}
.dp-time {
  font-size: 0.7rem;
  color: var(--gray-400, #94a3b8);
  margin-top: 3px;
}
.dp-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue-500, #3b82f6);
  flex-shrink: 0;
  margin-top: 5px;
}
.dp-load-wrap {
  padding: 0.5rem 1rem;
  border-top: 1px solid var(--border, #e2e8f0);
  background: var(--gray-50, #f8faff);
}
.dp-load-btn {
  width: 100%;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--blue-600, #2563eb);
  cursor: pointer;
  padding: 0.35rem;
}
.dp-load-btn.loading {
  color: var(--muted, #64748b);
  pointer-events: none;
}
.dp-footer-btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.7rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--blue-600, #2563eb);
  background: var(--gray-50, #f8faff);
  border: none;
  border-top: 1px solid var(--border, #e2e8f0);
  cursor: pointer;
  font-family: inherit;
}
.dp-footer-btn:hover {
  background: var(--blue-50, #eff6ff);
}

/* ── Dropdown: koyu tema (gruplar / stüdyo / forum vb.) ── */
html.dark .dp-head {
  border-bottom-color: #1e2d4a;
}
html.dark .dp-title {
  color: #f1f5ff;
}
html.dark .dp-mark {
  color: #93c5fd;
}
html.dark .dp-item {
  border-bottom-color: #1a2236;
}
html.dark .dp-item:hover {
  background: #1a2236;
}
html.dark .dp-item.unread {
  background: #0d1829;
}
html.dark .dp-item.unread:hover {
  background: #112240;
}
html.dark .dp-txt {
  color: #8899bb;
}
html.dark .dp-txt b {
  color: #bfcfe8;
}
html.dark .dp-time {
  color: #5a7099;
}
html.dark .dp-time a {
  color: #60a5fa;
}
html.dark .dp-av.sys {
  background: #1a2236;
  color: #8899bb;
}
html.dark .dp-load-wrap {
  background: #0f1525;
  border-top-color: #1e2d4a;
}
html.dark .dp-load-btn {
  color: #60a5fa;
}
html.dark .dp-load-btn.loading {
  color: #5a7099;
}
html.dark .dp-footer-btn {
  background: #0f1525;
  border-top-color: #1e2d4a;
  color: #60a5fa;
}
html.dark .dp-footer-btn:hover {
  background: #112240;
}
html.dark .notif-badge {
  border-color: #131828;
}

.dp-list::-webkit-scrollbar {
  width: 4px;
}
.dp-list::-webkit-scrollbar-thumb {
  background: var(--gray-200, #e2e8f0);
  border-radius: 4px;
}
html.dark .dp-list::-webkit-scrollbar-thumb {
  background: #1e2d4a;
}