/* ============================================================
   BEATLINK ADMIN — Design System
   Dark Studio · Inspired by Linear / Vercel / Stripe
   ============================================================ */

/* ── Tokens — Dark Mode (default) ── */
:root,
html[data-theme="dark"] {
  --bl-bg:          #080b10;
  --bl-surface:     #0d1117;
  --bl-elevated:    #161c24;
  --bl-overlay:     #1f2737;

  --bl-border-sub:  rgba(255,255,255,0.06);
  --bl-border:      rgba(255,255,255,0.10);
  --bl-border-str:  rgba(255,255,255,0.18);

  --bl-text:        #f0f6fc;
  --bl-text-2:      #8b949e;
  --bl-text-3:      #6e7681;
  --bl-text-dis:    #3d444d;

  --bl-green:       #1DB954;
  --bl-green-h:     #1ed760;
  --bl-green-muted: rgba(29,185,84,0.12);
  --bl-green-ring:  rgba(29,185,84,0.30);

  --bl-success:  #238636;
  --bl-warn:     #d29922;
  --bl-danger:   #da3633;
  --bl-info:     #388bfd;

  --bl-live:     #ff4500;
  --bl-public:   #1DB954;

  --bl-sidebar-w:     220px;
  --bl-sidebar-w-col: 64px;
  --bl-session-bar-h: 48px;

  --bl-r-sm: 6px; --bl-r: 8px; --bl-r-lg: 12px; --bl-r-xl: 16px;

  --bl-shadow-card:  0 1px 0 rgba(255,255,255,0.04), 0 0 0 1px rgba(255,255,255,0.08);
  --bl-shadow-float: 0 16px 48px rgba(0,0,0,0.60), 0 0 0 1px rgba(255,255,255,0.10);

  /* Page-specific legacy aliases (estadísticas, perfil) */
  --page-bg:      var(--bl-bg);
  --page-panel:   var(--bl-surface);
  --page-border:  var(--bl-border);
  --page-text:    var(--bl-text);
  --page-muted:   var(--bl-text-3);
  --page-input-bg:var(--bl-elevated);
  --page-blue:    #388bfd;
  --page-blue2:   #1DA1FF;
  --page-shadow:  0 4px 20px rgba(0,0,0,0.40);
  --page-radius:  12px;
  --page-good:    #34c759;
  --page-warn:    #d29922;
  --page-danger:  #f87171;
  --page-badge-bg:rgba(29,185,84,0.12);
  --page-badge-c: var(--bl-green);
}

/* ── Tokens — Light Mode ── */
html[data-theme="light"] {
  --bl-bg:          #f4f6f9;
  --bl-surface:     #ffffff;
  --bl-elevated:    #f0f3f7;
  --bl-overlay:     #e8edf5;

  --bl-border-sub:  rgba(0,0,0,0.06);
  --bl-border:      rgba(0,0,0,0.10);
  --bl-border-str:  rgba(0,0,0,0.20);

  --bl-text:        #0d1117;
  --bl-text-2:      #42526e;
  --bl-text-3:      #6b7280;
  --bl-text-dis:    #9ca3af;

  --bl-green:       #18a34a;
  --bl-green-h:     #1DB954;
  --bl-green-muted: rgba(24,163,74,0.10);
  --bl-green-ring:  rgba(24,163,74,0.25);

  --bl-success:  #16a34a;
  --bl-warn:     #d97706;
  --bl-danger:   #dc2626;
  --bl-info:     #2563eb;

  --bl-live:     #ea580c;
  --bl-public:   #16a34a;

  --bl-shadow-card:  0 1px 3px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.06);
  --bl-shadow-float: 0 12px 40px rgba(0,0,0,0.14), 0 0 0 1px rgba(0,0,0,0.07);

  /* Legacy aliases */
  --page-bg:      #f4f6f9;
  --page-panel:   #ffffff;
  --page-border:  rgba(0,0,0,0.10);
  --page-text:    #0d1117;
  --page-muted:   #6b7280;
  --page-input-bg:#ffffff;
  --page-blue:    #2563eb;
  --page-blue2:   #1D8FD1;
  --page-shadow:  0 4px 16px rgba(0,0,0,0.08);
  --page-radius:  12px;
  --page-good:    #16a34a;
  --page-warn:    #d97706;
  --page-danger:  #dc2626;
  --page-badge-bg:rgba(24,163,74,0.10);
  --page-badge-c: #16a34a;
}

/* ── Light mode overrides for components ── */
html[data-theme="light"] body { background: var(--bl-bg); color: var(--bl-text); }
html[data-theme="light"] .bl-sidebar {
  background: #ffffff;
  border-right-color: rgba(0,0,0,0.08);
  box-shadow: 2px 0 8px rgba(0,0,0,0.06);
}
html[data-theme="light"] .bl-sidebar-logo { border-bottom-color: rgba(0,0,0,0.06); }
html[data-theme="light"] .bl-nav-item { color: var(--bl-text-2); }
html[data-theme="light"] .bl-nav-item:hover { background: var(--bl-overlay); color: var(--bl-text); }
html[data-theme="light"] .bl-nav-item.active { background: var(--bl-green-muted); color: var(--bl-green); }
html[data-theme="light"] .bl-nav-divider { background: rgba(0,0,0,0.06); }
html[data-theme="light"] .bl-sidebar-user { border-top-color: rgba(0,0,0,0.06); }
html[data-theme="light"] .bl-session-bar {
  background: linear-gradient(90deg,#ffffff 0%, rgba(24,163,74,0.03) 100%);
  border-bottom-color: rgba(0,0,0,0.07);
}
html[data-theme="light"] .bl-card { background: #fff; border-color: rgba(0,0,0,0.08); }
html[data-theme="light"] .bl-card-header { border-bottom-color: rgba(0,0,0,0.06); }
html[data-theme="light"] .bl-input {
  background: #ffffff; border-color: rgba(0,0,0,0.14); color: var(--bl-text);
}
html[data-theme="light"] .bl-input:focus { border-color: var(--bl-green); }
html[data-theme="light"] .bl-btn { background: #ffffff; border-color: rgba(0,0,0,0.14); color: var(--bl-text-2); }
html[data-theme="light"] .bl-btn:hover { background: var(--bl-elevated); }
html[data-theme="light"] .bl-bar-btn { background: #f4f6f9; border-color: rgba(0,0,0,0.12); color: var(--bl-text-2); }
html[data-theme="light"] .bl-bar-btn:hover { background: var(--bl-overlay); }
html[data-theme="light"] .bl-table thead th { background: rgba(0,0,0,0.03); }
html[data-theme="light"] .bl-table tbody tr:hover { background: rgba(0,0,0,0.02); }
html[data-theme="light"] .bl-table tbody td { border-bottom-color: rgba(0,0,0,0.05); color: var(--bl-text); }
html[data-theme="light"] .bl-dropdown-menu { background: #fff; border-color: rgba(0,0,0,0.10); }
html[data-theme="light"] .bl-dropdown-item { color: var(--bl-text-2); }
html[data-theme="light"] .bl-dropdown-item:hover { background: var(--bl-elevated); }
html[data-theme="light"] .bl-activity-card { background: #fff; }
html[data-theme="light"] .bl-session-card { background: #fff; }
html[data-theme="light"] .bl-stat-card { background: #fff; }

/* ── Theme toggle button ── */
.bl-theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: var(--bl-r);
  background: none; border: 1px solid var(--bl-border);
  color: var(--bl-text-2); cursor: pointer;
  transition: background .15s, color .15s;
  font-size: 15px; flex-shrink: 0;
}
.bl-theme-toggle:hover { background: var(--bl-overlay); color: var(--bl-text); }

/* ── Reset base ── */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; padding: 0; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--bl-text);
  background: var(--bl-bg);
  -webkit-font-smoothing: antialiased;
}

/* ── Layout shell ── */
.bl-app {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */
.bl-sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--bl-sidebar-w);
  background: var(--bl-surface);
  border-right: 1px solid var(--bl-border-sub);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: width .2s ease;
  overflow: visible;
}
.bl-sidebar.collapsed { width: var(--bl-sidebar-w-col); }

/* Logo area */
.bl-sidebar-logo {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--bl-text);
}
/* Logo — expande al ancho disponible (sidebar - padding) manteniendo proporciones */
.bl-sidebar-logo img {
  display: block;
  width: calc(var(--bl-sidebar-w) - 32px); /* 220px - 2×16px padding */
  max-width: 188px;
  height: auto;
  object-fit: contain;
  flex-shrink: 0;
}
/* Collapsed: icono cuadrado centrado */
.bl-sidebar.collapsed .bl-sidebar-logo img {
  width: calc(var(--bl-sidebar-w-col) - 20px); /* 64px - 2×10px */
  max-width: 44px;
  height: auto;
  object-fit: contain;
}
.bl-sidebar-logo .bl-logo-text {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.2px;
  white-space: nowrap;
}
.bl-sidebar.collapsed .bl-logo-text { display: none; }

/* Nav */
.bl-sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  overflow-x: hidden;
}
.bl-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--bl-r);
  color: var(--bl-text-2);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: background .15s, color .15s;
  position: relative;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.bl-nav-item:hover {
  background: var(--bl-overlay);
  color: var(--bl-text);
}
.bl-nav-item.active {
  background: var(--bl-green-muted);
  color: var(--bl-green);
}
.bl-nav-item .bl-nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.bl-nav-item .bl-nav-label { flex: 1; }
.bl-nav-item .bl-nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bl-green);
  box-shadow: 0 0 6px var(--bl-green);
  flex-shrink: 0;
}
.bl-nav-divider {
  height: 1px;
  background: var(--bl-border-sub);
  margin: 6px 4px;
}
.bl-sidebar.collapsed .bl-sidebar-logo { padding: 0 10px; justify-content: center; }
.bl-sidebar.collapsed .bl-nav-label,
.bl-sidebar.collapsed .bl-nav-dot { display: none; }
.bl-sidebar.collapsed .bl-nav-item { justify-content: center; padding: 10px; }

/* Sidebar user area */
.bl-sidebar-user {
  border-top: 1px solid var(--bl-border-sub);
  padding: 10px 8px;
  flex-shrink: 0;
}
.bl-user-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--bl-r);
  color: var(--bl-text-2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.bl-user-btn:hover { background: var(--bl-overlay); color: var(--bl-text); }
.bl-user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--bl-green-muted);
  border: 1px solid var(--bl-green-ring);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
  color: var(--bl-green);
  flex-shrink: 0;
}
.bl-user-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bl-sidebar.collapsed .bl-user-name { display: none; }
.bl-sidebar.collapsed .bl-user-btn { justify-content: center; }

/* Collapse toggle */
.bl-sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 4px 10px 8px;
  flex-shrink: 0;
}
.bl-sidebar-toggle button {
  background: none;
  border: none;
  color: var(--bl-text-3);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: var(--bl-r-sm);
  font-size: 12px;
  transition: color .15s, background .15s;
  display: flex; align-items: center;
}
.bl-sidebar-toggle button:hover { color: var(--bl-text); background: var(--bl-overlay); }
.bl-sidebar.collapsed .bl-sidebar-toggle { justify-content: center; }

/* ── Content area ── */
.bl-content-area {
  margin-left: var(--bl-sidebar-w);
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left .2s ease;
}
.bl-sidebar.collapsed ~ .bl-content-area {
  margin-left: var(--bl-sidebar-w-col);
}

/* ── Session bar ── */
.bl-session-bar {
  height: var(--bl-session-bar-h);
  background: linear-gradient(90deg, var(--bl-surface) 0%, rgba(29,185,84,0.03) 100%);
  border-bottom: 1px solid var(--bl-border-sub);
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 90;
  flex-shrink: 0;
}
.bl-session-bar-left {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.bl-session-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--bl-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}
.bl-session-meta {
  font-size: 12px;
  color: var(--bl-text-3);
  white-space: nowrap;
}
.bl-session-no-session {
  font-size: 13px;
  color: var(--bl-text-3);
}
.bl-session-bar-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* Status chips */
.bl-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: var(--bl-r-sm);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
}
.bl-chip-green {
  background: var(--bl-green-muted);
  color: var(--bl-green);
  border-color: rgba(29,185,84,0.20);
}
.bl-chip-red {
  background: rgba(255,69,0,0.12);
  color: #ff6b35;
  border-color: rgba(255,69,0,0.25);
}
.bl-chip-gray {
  background: rgba(255,255,255,0.05);
  color: var(--bl-text-3);
  border-color: var(--bl-border-sub);
}
.bl-chip-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.bl-chip-dot.pulse {
  animation: bl-pulse 1.5s infinite;
}
@keyframes bl-pulse {
  0%,100%{ opacity: 1; }
  50%{ opacity: .35; }
}

/* Session bar buttons */
.bl-bar-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: var(--bl-r-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--bl-border);
  background: var(--bl-elevated);
  color: var(--bl-text-2);
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.bl-bar-btn:hover { background: var(--bl-overlay); color: var(--bl-text); border-color: var(--bl-border-str); }
.bl-bar-btn.primary {
  background: var(--bl-green-muted);
  color: var(--bl-green);
  border-color: rgba(29,185,84,0.25);
}
.bl-bar-btn.primary:hover { background: rgba(29,185,84,0.20); }
.bl-bar-btn.danger {
  background: rgba(218,54,51,0.10);
  color: #f87171;
  border-color: rgba(218,54,51,0.25);
}
.bl-bar-btn.danger:hover { background: rgba(218,54,51,0.18); }
.bl-bar-btn:disabled, .bl-bar-btn[disabled] {
  opacity: .4; pointer-events: none; cursor: not-allowed;
}
.bl-bar-btn.disabled {
  opacity: .3; pointer-events: none; cursor: not-allowed;
}
.bl-bar-divider {
  width: 1px;
  height: 20px;
  background: var(--bl-border-sub);
  margin: 0 4px;
}

/* ── Main content ── */
.bl-main {
  flex: 1;
  padding: 24px;
  min-width: 0;
}
.bl-page-header {
  margin-bottom: 20px;
}
.bl-page-title {
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 700;
  color: var(--bl-text);
  letter-spacing: -.3px;
}
.bl-page-sub {
  margin: 0;
  font-size: 13px;
  color: var(--bl-text-3);
}

/* ── Cards ── */
.bl-card {
  background: var(--bl-surface);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  box-shadow: var(--bl-shadow-card);
  overflow: hidden;
}
.bl-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--bl-border-sub);
}
.bl-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--bl-text);
  letter-spacing: .1px;
}
.bl-card-body { padding: 14px 16px; }

/* ── Buttons ── */
.bl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--bl-r);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--bl-border);
  background: var(--bl-elevated);
  color: var(--bl-text-2);
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s;
  white-space: nowrap;
  line-height: 1.4;
}
.bl-btn:hover { background: var(--bl-overlay); color: var(--bl-text); border-color: var(--bl-border-str); }
.bl-btn.primary {
  background: var(--bl-green);
  color: #062210;
  border-color: transparent;
  font-weight: 700;
}
.bl-btn.primary:hover { background: var(--bl-green-h); }
.bl-btn.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--bl-text-3);
}
.bl-btn.ghost:hover { background: var(--bl-overlay); color: var(--bl-text); border-color: transparent; }
.bl-btn.danger {
  background: rgba(218,54,51,0.10);
  color: #f87171;
  border-color: rgba(218,54,51,0.25);
}
.bl-btn.danger:hover { background: rgba(218,54,51,0.20); }
.bl-btn.sm { padding: 5px 10px; font-size: 12px; }
.bl-btn.lg { padding: 10px 18px; font-size: 14px; }
.bl-btn:disabled, .bl-btn[disabled] { opacity: .4; pointer-events: none; }

/* ── Forms ── */
.bl-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--bl-text-2);
  margin-bottom: 5px;
  letter-spacing: .2px;
  text-transform: uppercase;
}
.bl-input {
  width: 100%;
  padding: 8px 11px;
  border-radius: var(--bl-r);
  border: 1px solid var(--bl-border);
  background: var(--bl-elevated);
  color: var(--bl-text);
  font-size: 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.bl-input:focus {
  border-color: var(--bl-green);
  box-shadow: 0 0 0 3px var(--bl-green-ring);
}
.bl-input::placeholder { color: var(--bl-text-dis); }
.bl-input[type="date"] { color-scheme: dark; }
select.bl-input option { background: var(--bl-elevated); }
textarea.bl-input { resize: vertical; min-height: 70px; line-height: 1.5; }

/* ── Table ── */
.bl-table-wrap {
  overflow: auto;
  border-radius: var(--bl-r-lg);
  border: 1px solid var(--bl-border);
}
.bl-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}
.bl-table thead th {
  position: sticky;
  top: 0;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
  color: var(--bl-text-3);
  font-weight: 700;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--bl-border);
  white-space: nowrap;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.bl-table tbody tr { transition: background .1s; }
.bl-table tbody tr:hover { background: var(--bl-elevated); }
.bl-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--bl-border-sub);
  color: var(--bl-text);
  vertical-align: middle;
}
.bl-table tbody tr:last-child td { border-bottom: 0; }

/* ── Dropdown menu ── */
.bl-dropdown {
  position: relative;
  display: inline-block;
}
.bl-dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--bl-elevated);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  box-shadow: var(--bl-shadow-float);
  min-width: 200px;
  z-index: 200;
  overflow: hidden;
  animation: bl-dd-in .15s ease;
}
@keyframes bl-dd-in {
  from { opacity: 0; transform: translateY(-6px) scale(.98); }
  to   { opacity: 1; transform: none; }
}
.bl-dropdown-menu.open { display: block; }
.bl-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  color: var(--bl-text-2);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background .1s, color .1s;
}
.bl-dropdown-item:hover { background: var(--bl-overlay); color: var(--bl-text); }
.bl-dropdown-item.danger:hover { background: rgba(218,54,51,0.10); color: #f87171; }
.bl-dropdown-divider { height: 1px; background: var(--bl-border-sub); }

/* ── Badge/status pills ── */
.bl-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid transparent;
}
.bl-badge-green { background: var(--bl-green-muted); color: var(--bl-green); border-color: rgba(29,185,84,0.20); }
.bl-badge-gray  { background: rgba(255,255,255,0.06); color: var(--bl-text-3); border-color: var(--bl-border-sub); }
.bl-badge-amber { background: rgba(210,153,34,0.12); color: #d29922; border-color: rgba(210,153,34,0.25); }
.bl-badge-red   { background: rgba(218,54,51,0.10); color: #f87171; border-color: rgba(218,54,51,0.25); }

/* ── Activity cards ── */
.bl-activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.bl-activity-card {
  background: var(--bl-surface);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .2s, box-shadow .2s, transform .2s;
  position: relative;
  overflow: hidden;
}
.bl-activity-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--bl-green-ring), transparent);
  opacity: 0;
  transition: opacity .2s;
}
.bl-activity-card:hover {
  border-color: var(--bl-border-str);
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
  transform: translateY(-2px);
}
.bl-activity-card:hover::before { opacity: 1; }
.bl-activity-icon {
  font-size: 28px;
  line-height: 1;
  width: 52px; height: 52px;
  background: var(--bl-elevated);
  border-radius: var(--bl-r);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--bl-border-sub);
  transition: transform .2s, background .2s;
}
.bl-activity-card:hover .bl-activity-icon {
  transform: scale(1.08);
  background: var(--bl-green-muted);
  border-color: var(--bl-green-ring);
}
.bl-activity-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--bl-text);
  margin: 0;
}
.bl-activity-desc {
  font-size: 12.5px;
  color: var(--bl-text-3);
  margin: 0;
  flex: 1;
  line-height: 1.45;
}
.bl-activity-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

/* ── Session cards ── */
.bl-session-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.bl-session-card {
  background: var(--bl-surface);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
  text-decoration: none;
}
.bl-session-card:hover {
  border-color: var(--bl-border-str);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}
.bl-session-card.active-card {
  border-color: rgba(29,185,84,0.35);
  box-shadow: 0 0 0 3px rgba(29,185,84,0.08);
}
.bl-session-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--bl-text);
  margin: 0;
}
.bl-session-card-meta {
  font-size: 12px;
  color: var(--bl-text-3);
}
.bl-session-card-actions {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

/* ── Stats ── */
.bl-stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.bl-stat-card {
  background: var(--bl-surface);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  padding: 16px;
}
.bl-stat-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--bl-text-3);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 6px;
}
.bl-stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--bl-text);
  line-height: 1;
  letter-spacing: -.5px;
}
.bl-stat-sub {
  font-size: 12px;
  color: var(--bl-text-3);
  margin-top: 4px;
}

/* ── Scrollbar ── */
* { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,.18) transparent; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.18); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.28); }

/* ── Utility ── */
.bl-flex { display: flex; }
.bl-flex-center { display: flex; align-items: center; }
.bl-flex-between { display: flex; align-items: center; justify-content: space-between; }
.bl-gap-1 { gap: 4px; }
.bl-gap-2 { gap: 8px; }
.bl-gap-3 { gap: 12px; }
.bl-gap-4 { gap: 16px; }
.bl-mt-1 { margin-top: 4px; }
.bl-mt-2 { margin-top: 8px; }
.bl-mt-3 { margin-top: 12px; }
.bl-mt-4 { margin-top: 16px; }
.bl-mt-6 { margin-top: 24px; }
.bl-mb-1 { margin-bottom: 4px; }
.bl-mb-2 { margin-bottom: 8px; }
.bl-mb-3 { margin-bottom: 12px; }
.bl-mb-4 { margin-bottom: 16px; }
.bl-mb-6 { margin-bottom: 24px; }
.bl-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bl-muted { color: var(--bl-text-3); }
.bl-text-sm { font-size: 12px; }
.bl-fw-7 { font-weight: 700; }
.bl-mono { font-family: "JetBrains Mono", "Fira Code", monospace; font-size: 12px; }
.bl-w-full { width: 100%; }

/* ── Toast ── */
#bl-toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
}
.bl-toast {
  background: var(--bl-elevated);
  border: 1px solid var(--bl-border);
  border-radius: var(--bl-r-lg);
  padding: 10px 14px;
  color: var(--bl-text);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--bl-shadow-float);
  pointer-events: auto;
  animation: bl-toast-in .2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 340px;
}
.bl-toast.success { border-color: rgba(29,185,84,.3); }
.bl-toast.error   { border-color: rgba(218,54,51,.3); }
@keyframes bl-toast-in {
  from { opacity: 0; transform: translateX(12px); }
  to   { opacity: 1; transform: none; }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .bl-sidebar {
    transform: translateX(-100%);
    transition: transform .2s ease, width .2s ease;
  }
  .bl-sidebar.mobile-open { transform: translateX(0); }
  .bl-content-area { margin-left: 0 !important; }
  .bl-session-bar { padding: 0 12px; }
  .bl-session-name { max-width: 160px; }
  .bl-main { padding: 16px 12px; }

  .bl-mob-hide { display: none !important; }
  .bl-mob-menu-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border-radius: var(--bl-r);
    border: 1px solid var(--bl-border);
    background: var(--bl-elevated);
    color: var(--bl-text-2);
    cursor: pointer;
  }
}
@media (min-width: 769px) {
  .bl-mob-menu-btn { display: none; }
}

/* ── Global dark-mode safety net: prevent light-text-on-dark-bg when pages use .btn ── */
html[data-theme="dark"] .btn {
  color: var(--bl-text) !important;
  background: var(--bl-elevated) !important;
  border-color: var(--bl-border) !important;
}
html[data-theme="dark"] .btn.primary,
html[data-theme="dark"] .btn[style*="background:#1DB954"] {
  background: var(--bl-green) !important;
  color: #062210 !important;
  border-color: transparent !important;
}
html[data-theme="dark"] .btn.ghost {
  background: transparent !important;
  color: var(--bl-text-2) !important;
}
/* Inputs en dark: asegurar contraste */
html[data-theme="dark"] input[type="text"],
html[data-theme="dark"] input[type="email"],
html[data-theme="dark"] input[type="tel"],
html[data-theme="dark"] input[type="number"],
html[data-theme="dark"] input[type="date"],
html[data-theme="dark"] select,
html[data-theme="dark"] textarea {
  background: var(--bl-elevated) !important;
  color: var(--bl-text) !important;
  border-color: var(--bl-border) !important;
}
html[data-theme="dark"] input::placeholder { color: var(--bl-text-dis) !important; }
/* Light mode overrides for perfil/estadisticas generic buttons */
html[data-theme="light"] .btn {
  background: #fff;
  color: #0d1117;
  border-color: rgba(0,0,0,0.15);
}
html[data-theme="light"] .btn.primary { background: var(--page-blue); color: #fff; border-color: transparent; }
html[data-theme="light"] .btn.ghost   { background: transparent; color: var(--bl-text-2); }