/* SeriFi Line System - Main Stylesheet */
/* Color Palette: Black & Gold Luxury */

:root {
  --gold-primary:    #C9A84C;
  --gold-light:      #F0C040;
  --gold-bright:     #FFD700;
  --gold-dark:       #8B6914;
  --gold-gradient:   linear-gradient(135deg, #C9A84C 0%, #F0C040 40%, #C9A84C 60%, #8B6914 100%);
  --gold-shine:      linear-gradient(135deg, #8B6914 0%, #C9A84C 30%, #FFD700 50%, #C9A84C 70%, #8B6914 100%);

  --black-bg:        #0A0A0A;
  --black-card:      #111111;
  --black-surface:   #181818;
  --black-hover:     #222222;
  --black-border:    #2A2A2A;
  --black-input:     #151515;

  --text-gold:       #C9A84C;
  --text-light:      #E8E8E8;
  --text-muted:      #777777;
  --text-dim:        #555555;

  --blue-accent:     #1E3A5F;
  --sapphire:        #0F2D5E;
  --danger:          #C0392B;
  --success:         #27AE60;
  --warning:         #F39C12;

  --sidebar-w:       340px;
  --topbar-h:        60px;
  --radius:          12px;
  --radius-sm:       8px;
  --shadow-gold:     0 4px 24px rgba(201,168,76,0.18);
  --shadow-dark:     0 4px 20px rgba(0,0,0,0.6);
  --transition:      all 0.22s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: 'Kanit', 'Prompt', 'Noto Sans Thai', sans-serif;
  background: var(--black-bg);
  color: var(--text-light);
  overflow: hidden;
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--black-surface); }
::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-primary); }

/* === GOLD TEXT GRADIENT === */
.text-gold {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === GOLD BORDER === */
.border-gold { border: 1px solid var(--gold-primary) !important; }

/* ===========================
   AUTH PAGES (Login/Register)
   =========================== */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black-bg);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(201,168,76,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(201,168,76,0.04) 0%, transparent 40%);
  overflow: auto;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-top: 2px solid var(--gold-primary);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--shadow-dark), 0 0 60px rgba(201,168,76,0.08);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.auth-logo img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(201,168,76,0.5));
}

.auth-logo-text h1 {
  font-size: 22px;
  font-weight: 700;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  letter-spacing: 2px;
}

.auth-logo-text span {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.auth-card h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 6px;
}

.auth-card p.subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Form controls */
.form-group { margin-bottom: 16px; }

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 6px;
}

.form-control, .form-select {
  width: 100%;
  background: var(--black-input) !important;
  border: 1px solid var(--black-border) !important;
  color: var(--text-light) !important;
  border-radius: var(--radius-sm) !important;
  padding: 10px 14px !important;
  font-size: 14px !important;
  font-family: inherit !important;
  transition: var(--transition) !important;
}

.form-control:focus, .form-select:focus {
  border-color: var(--gold-primary) !important;
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12) !important;
  outline: none !important;
  background: var(--black-surface) !important;
}

.form-control::placeholder { color: var(--text-dim) !important; }

/* Buttons */
.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 20px;
  background: var(--gold-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: #0A0A0A;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-family: inherit;
}

.btn-gold:hover {
  background: var(--gold-shine);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201,168,76,0.35);
  color: #0A0A0A;
}

.btn-gold:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--black-border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  text-decoration: none;
}

.btn-ghost:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
}

.btn-danger {
  background: var(--danger);
  border: none;
  color: #fff;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.btn-danger:hover { background: #a93226; }

.btn-success {
  background: var(--success);
  border: none;
  color: #fff;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.auth-divider {
  text-align: center;
  margin: 20px 0;
  position: relative;
  font-size: 12px;
  color: var(--text-dim);
}

.auth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: var(--black-border);
}

.auth-divider span {
  background: var(--black-card);
  padding: 0 12px;
  position: relative;
}

.auth-link { color: var(--gold-primary); text-decoration: none; font-size: 13px; }
.auth-link:hover { color: var(--gold-light); text-decoration: underline; }

.alert-gold {
  background: rgba(201,168,76,0.08);
  border: 1px solid rgba(201,168,76,0.25);
  border-left: 3px solid var(--gold-primary);
  color: var(--gold-light);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.alert-danger {
  background: rgba(192,57,43,0.1);
  border: 1px solid rgba(192,57,43,0.3);
  border-left: 3px solid var(--danger);
  color: #e74c3c;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.alert-success {
  background: rgba(39,174,96,0.1);
  border: 1px solid rgba(39,174,96,0.3);
  border-left: 3px solid var(--success);
  color: #2ecc71;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

/* ===========================
   MAIN APP LAYOUT
   =========================== */
.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* === SIDEBAR === */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--black-card);
  border-right: 1px solid var(--black-border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
  z-index: 10;
}

/* Sidebar Top Bar */
.sidebar-topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--black-border);
  background: var(--black-surface);
  gap: 10px;
  flex-shrink: 0;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: 1;
}

.logo-link img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 0 6px rgba(201,168,76,0.4));
}

.logo-link .brand-name {
  font-size: 18px;
  font-weight: 800;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
}

.sidebar-actions { display: flex; gap: 4px; }

.icon-btn {
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 16px;
  text-decoration: none;
}

.icon-btn:hover {
  background: var(--black-hover);
  border-color: var(--gold-dark);
  color: var(--gold-primary);
}

/* Sidebar Tabs */
.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--black-border);
  background: var(--black-surface);
  flex-shrink: 0;
}

.sidebar-tab {
  flex: 1;
  padding: 10px 4px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-family: inherit;
}

.sidebar-tab i { font-size: 18px; }

.sidebar-tab.active {
  color: var(--gold-primary);
  border-bottom-color: var(--gold-primary);
}

.sidebar-tab:hover:not(.active) {
  color: var(--text-light);
  background: var(--black-hover);
}

/* Search */
.sidebar-search {
  padding: 12px;
  border-bottom: 1px solid var(--black-border);
  flex-shrink: 0;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-wrap i {
  position: absolute;
  left: 10px;
  color: var(--text-dim);
  font-size: 14px;
}

.search-input-wrap input {
  width: 100%;
  background: var(--black-input);
  border: 1px solid var(--black-border);
  border-radius: 20px;
  padding: 8px 14px 8px 34px;
  color: var(--text-light);
  font-size: 13px;
  font-family: inherit;
  transition: var(--transition);
}

.search-input-wrap input:focus {
  outline: none;
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.1);
}

/* Chat List */
.chat-list {
  flex: 1;
  overflow-y: auto;
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.03);
  position: relative;
  text-decoration: none;
  color: inherit;
}

.chat-item:hover, .chat-item.active {
  background: var(--black-hover);
}

.chat-item.active {
  border-left: 3px solid var(--gold-primary);
  background: rgba(201,168,76,0.05);
}

.chat-avatar {
  position: relative;
  flex-shrink: 0;
}

.avatar-img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--black-surface);
  border: 2px solid var(--black-border);
}

.avatar-initials {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gold-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: var(--black-bg);
  border: 2px solid var(--gold-primary);
  flex-shrink: 0;
}

.online-dot {
  position: absolute;
  bottom: 1px;
  right: 1px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--success);
  border: 2px solid var(--black-card);
}

.online-dot.away { background: var(--warning); }
.online-dot.busy { background: var(--danger); }
.online-dot.offline { background: var(--text-dim); }

.chat-info { flex: 1; min-width: 0; }

.chat-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-preview {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.chat-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

.chat-time { font-size: 11px; color: var(--text-dim); }

.unread-badge {
  background: var(--gold-gradient);
  color: var(--black-bg);
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* Sidebar footer */
.sidebar-footer {
  border-top: 1px solid var(--black-border);
  padding: 12px 16px;
  background: var(--black-surface);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.my-avatar { cursor: pointer; }

.sidebar-footer .user-info { flex: 1; min-width: 0; }
.sidebar-footer .user-name { font-size: 13px; font-weight: 600; color: var(--text-light); }
.sidebar-footer .user-id { font-size: 11px; color: var(--text-muted); }

/* ===========================
   MAIN CONTENT / CHAT AREA
   =========================== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--black-bg);
}

/* Chat header */
.chat-header {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid var(--black-border);
  background: var(--black-card);
  gap: 14px;
  flex-shrink: 0;
}

.chat-header .chat-avatar { cursor: pointer; }
.chat-header .chat-name { font-size: 16px; font-weight: 700; color: var(--text-light); }
.chat-header .chat-status { font-size: 12px; color: var(--text-muted); }
.chat-header-actions { margin-left: auto; display: flex; gap: 4px; }

/* Messages area */
.messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.messages-date-divider {
  text-align: center;
  margin: 16px 0;
  position: relative;
}

.messages-date-divider span {
  background: var(--black-bg);
  padding: 4px 14px;
  font-size: 11px;
  color: var(--text-dim);
  border: 1px solid var(--black-border);
  border-radius: 12px;
}

.msg-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 75%;
  margin-bottom: 4px;
}

.msg-row.me {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.msg-row.them { align-self: flex-start; }

.msg-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
  max-width: 100%;
  position: relative;
}

.msg-row.me .msg-bubble {
  background: var(--gold-gradient);
  color: #0A0A0A;
  border-bottom-right-radius: 4px;
}

.msg-row.them .msg-bubble {
  background: var(--black-surface);
  color: var(--text-light);
  border: 1px solid var(--black-border);
  border-bottom-left-radius: 4px;
}

.msg-time {
  font-size: 10px;
  color: var(--text-dim);
  flex-shrink: 0;
  margin-bottom: 2px;
}

.msg-sender-name {
  font-size: 11px;
  color: var(--gold-primary);
  margin-bottom: 2px;
  margin-left: 46px;
}

/* Message input */
.msg-input-area {
  border-top: 1px solid var(--black-border);
  background: var(--black-card);
  padding: 12px 20px;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}

.msg-input-wrap {
  flex: 1;
  background: var(--black-input);
  border: 1px solid var(--black-border);
  border-radius: 24px;
  display: flex;
  align-items: flex-end;
  padding: 8px 14px;
  gap: 8px;
  transition: var(--transition);
}

.msg-input-wrap:focus-within {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 2px rgba(201,168,76,0.1);
}

.msg-textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-light);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  max-height: 120px;
  line-height: 1.4;
}

.msg-textarea::placeholder { color: var(--text-dim); }

.msg-attach-btn, .msg-emoji-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 2px;
  transition: var(--transition);
  line-height: 1;
}

.msg-attach-btn:hover, .msg-emoji-btn:hover { color: var(--gold-primary); }

.send-btn {
  width: 42px;
  height: 42px;
  background: var(--gold-gradient);
  border: none;
  border-radius: 50%;
  color: #0A0A0A;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.send-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(201,168,76,0.4);
}

/* === WELCOME SCREEN === */
.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-muted);
}

.welcome-screen img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  opacity: 0.4;
  filter: grayscale(0.3);
}

.welcome-screen h3 {
  font-size: 20px;
  color: var(--text-dim);
}

.welcome-screen p { font-size: 13px; }

/* ===========================
   ADMIN PANEL
   =========================== */
.admin-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.admin-sidebar {
  width: 260px;
  background: var(--black-card);
  border-right: 1px solid var(--black-border);
  display: flex;
  flex-direction: column;
}

.admin-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--black-border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-brand img { width: 40px; height: 40px; object-fit: contain; }
.admin-brand .name { font-size: 18px; font-weight: 800; letter-spacing: 2px; }
.admin-brand .subtitle { font-size: 10px; color: var(--text-muted); letter-spacing: 1px; }

.admin-nav { flex: 1; padding: 12px 0; overflow-y: auto; }

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  padding: 12px 20px 6px;
  text-transform: uppercase;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.admin-nav-link i { width: 18px; text-align: center; font-size: 16px; }

.admin-nav-link:hover {
  background: var(--black-hover);
  color: var(--text-light);
}

.admin-nav-link.active {
  background: rgba(201,168,76,0.08);
  color: var(--gold-primary);
  border-left-color: var(--gold-primary);
}

.admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.admin-topbar {
  height: 60px;
  border-bottom: 1px solid var(--black-border);
  background: var(--black-card);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  flex-shrink: 0;
}

.admin-topbar h1 { font-size: 17px; font-weight: 600; flex: 1; }

.admin-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Stat Cards */
.stat-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--gold-dark);
  box-shadow: var(--shadow-gold);
}

.stat-icon {
  width: 50px;
  height: 50px;
  background: var(--gold-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--black-bg);
  flex-shrink: 0;
}

.stat-value { font-size: 26px; font-weight: 800; color: var(--text-light); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* Data Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table thead tr {
  background: var(--black-surface);
  border-bottom: 2px solid var(--gold-dark);
}

.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--gold-primary);
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--black-border);
  transition: var(--transition);
}

.data-table tbody tr:hover { background: var(--black-hover); }

.data-table td { padding: 12px 14px; color: var(--text-light); vertical-align: middle; }

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-pending { background: rgba(243,156,18,0.15); color: var(--warning); }
.badge-active  { background: rgba(39,174,96,0.15);  color: var(--success); }
.badge-suspended { background: rgba(192,57,43,0.15); color: var(--danger); }
.badge-admin   { background: rgba(201,168,76,0.15); color: var(--gold-primary); }
.badge-superadmin { background: var(--gold-gradient); color: var(--black-bg); }

/* Card */
.serifi-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.serifi-card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--black-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.serifi-card-header h5 {
  font-size: 15px;
  font-weight: 600;
  flex: 1;
}

.serifi-card-body { padding: 20px; }

/* Modal */
.modal-serifi .modal-content {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-top: 2px solid var(--gold-primary);
  color: var(--text-light);
}

.modal-serifi .modal-header {
  border-bottom: 1px solid var(--black-border);
  background: var(--black-surface);
}

.modal-serifi .modal-footer { border-top: 1px solid var(--black-border); }
.modal-serifi .btn-close { filter: invert(1); }

/* ===========================
   PROFILE PANEL
   =========================== */
.profile-panel {
  width: 320px;
  background: var(--black-card);
  border-left: 1px solid var(--black-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.profile-cover {
  height: 100px;
  background: var(--gold-gradient);
  opacity: 0.3;
}

.profile-header-section {
  padding: 0 20px 20px;
  text-align: center;
  margin-top: -40px;
}

.profile-avatar-lg {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--gold-primary);
  object-fit: cover;
  background: var(--black-surface);
}

.profile-avatar-initials-lg {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gold-dark);
  border: 3px solid var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--black-bg);
  margin: 0 auto;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 768px) {
  :root { --sidebar-w: 100%; }
  .app-layout { position: relative; }
  .sidebar {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 20;
    transform: translateX(0);
    transition: transform 0.3s ease;
  }
  .sidebar.hidden { transform: translateX(-100%); }
  .main-content {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .main-content.active { transform: translateX(0); }
  .profile-panel { display: none; }
  .msg-row { max-width: 90%; }
  .admin-sidebar { width: 220px; }
}

@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .admin-sidebar { display: none; }
  .admin-main { width: 100%; }
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg-row { animation: fadeIn 0.2s ease; }

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,168,76,0.4); }
  50%       { box-shadow: 0 0 0 8px rgba(201,168,76,0); }
}

.online-dot { animation: pulse-gold 2.5s infinite; }
.online-dot.offline { animation: none; }

/* Back to serifi.info link */
.back-to-site {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  transition: var(--transition);
}

.back-to-site:hover { color: var(--gold-primary); }

/* ID display */
.member-id-display {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--gold-primary);
  background: rgba(201,168,76,0.08);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(201,168,76,0.2);
  letter-spacing: 1px;
}