@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Reset & Tokens ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-base:       #0d0914;
  --bg-surface:    #151022;
  --bg-elevated:   #1f1833;
  --bg-card:       rgba(31, 24, 51, 0.85);
  --border:        rgba(139, 92, 246, 0.18);
  --border-hover:  rgba(139, 92, 246, 0.45);
  --accent:        #8b5cf6;
  --accent-glow:   rgba(139, 92, 246, 0.35);
  --accent-2:      #a78bfa;
  --success:       #10b981;
  --danger:        #ef4444;
  --warning:       #f59e0b;
  --text-primary:  #e2e8f0;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     18px;
  --shadow-sm:     0 2px 8px rgba(0,0,0,.4);
  --shadow-md:     0 8px 32px rgba(0,0,0,.55);
  --shadow-lg:     0 16px 64px rgba(0,0,0,.7);
  --font:          'Inter', system-ui, sans-serif;
  --transition:    0.18s cubic-bezier(.4,0,.2,1);
}

html, body {
  height: 100%;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  overflow: hidden;
}

/* ── Scrollbar ─────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Login Screen ──────────────────────────────────────────────────── */
#login-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,.18) 0%, var(--bg-base) 70%);
  z-index: 1000;
  transition: opacity .4s, visibility .4s;
}
#login-screen.hidden { opacity: 0; visibility: hidden; }

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  width: 380px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), 0 0 80px var(--accent-glow);
  display: flex; flex-direction: column; gap: 24px;
  animation: floatIn .5s ease both;
}
.login-card .logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; letter-spacing: -0.5px;
}
.login-card .logo .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s ease infinite;
}
.login-card h2 { font-size: 15px; font-weight: 400; color: var(--text-secondary); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; font-weight: 500; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; }
.field input {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.field input::placeholder { color: var(--text-muted); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 12px;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }

#login-error {
  color: var(--danger);
  font-size: 13px;
  text-align: center;
  min-height: 20px;
}

/* ── App Shell ─────────────────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-rows: 54px 1fr;
  grid-template-columns: 280px 1fr;
  height: 100vh;
  opacity: 0; visibility: hidden;
  transition: opacity .4s, visibility .4s;
}
#app.visible { opacity: 1; visibility: visible; }

/* ── Topbar ────────────────────────────────────────────────────────── */
#topbar {
  grid-column: 1 / -1;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 20px; gap: 14px;
  position: relative; z-index: 10;
}
#topbar .logo { font-size: 16px; font-weight: 700; letter-spacing: -0.5px; display: flex; align-items: center; gap: 8px; }
#topbar .logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse 2s ease infinite; }
#topbar .sep { flex: 1; }
#connection-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-secondary);
}
#connection-status .indicator { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); transition: background .3s; }
#connection-status.connected .indicator { background: var(--success); box-shadow: 0 0 8px var(--success); }
#connection-status.disconnected .indicator { background: var(--danger); }
#connection-status.connecting .indicator { background: var(--warning); animation: pulse 1s ease infinite; }

#btn-logout {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.25);
  border-radius: var(--radius-sm);
  color: var(--danger);
  cursor: pointer;
  font-family: var(--font);
  font-size: 12px; font-weight: 500;
  padding: 6px 14px;
  transition: background var(--transition);
}
#btn-logout:hover { background: rgba(239,68,68,.22); }

/* ── Sidebar (lista de agentes) ─────────────────────────────────────── */
#sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.sidebar-header {
  padding: 16px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.sidebar-header h3 { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .8px; color: var(--text-secondary); }
.agent-count {
  background: var(--accent);
  border-radius: 99px;
  color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 2px 8px;
  min-width: 22px; text-align: center;
}

/* ── Code Connect Section ────────────────────────────────────────────── */
#code-connect-section {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(59,130,246,.06) 0%, transparent 100%);
}
.code-section-label {
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .8px;
  color: var(--accent);
  margin-bottom: 8px;
}
.code-input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
}
#code-input {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 15px; font-weight: 700;
  letter-spacing: 1px;
  outline: none;
  padding: 8px;
  text-align: center;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}
#code-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
#code-input::placeholder { font-size: 12px; letter-spacing: 1px; color: var(--text-muted); font-weight: 400; }
.btn-code {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  font-family: var(--font);
  font-size: 12px; font-weight: 600;
  padding: 8px 12px;
  transition: opacity var(--transition), transform var(--transition);
  white-space: nowrap;
  box-shadow: 0 3px 12px var(--accent-glow);
}
.btn-code:hover  { opacity: .88; transform: translateY(-1px); }
.btn-code:active { transform: translateY(0); }
.btn-code:disabled { opacity: .4; cursor: not-allowed; transform: none; }
.code-error {
  font-size: 12px; color: var(--danger);
  margin-top: 7px; min-height: 16px;
  transition: opacity .2s;
}

#agent-search {
  background: rgba(255,255,255,.04);
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 13px;
  outline: none;
  padding: 10px 16px;
  width: 100%;
}
#agent-search::placeholder { color: var(--text-muted); }

#agent-list {
  flex: 1; overflow-y: auto;
  display: flex; flex-direction: column; gap: 0;
}

.agent-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,.04);
  transition: background var(--transition);
  position: relative;
}
.agent-item:hover { background: rgba(59,130,246,.08); }
.agent-item.active { background: rgba(59,130,246,.15); }
.agent-item.active::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--accent); border-radius: 0 3px 3px 0;
}
.agent-item .avatar {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; flex-shrink: 0;
  box-shadow: 0 2px 8px var(--accent-glow);
}
.agent-item .info { flex: 1; min-width: 0; }
.agent-item .info .name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.agent-item .info .hw { font-size: 11px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.agent-status { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 6px var(--success); flex-shrink: 0; }
.agent-status.offline { background: var(--text-muted); box-shadow: none; }

#sidebar-empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  display: none;
}

/* ── Viewer Panel ──────────────────────────────────────────────────── */
#viewer-panel {
  display: flex; flex-direction: column;
  background: var(--bg-base);
  overflow: hidden;
}

#viewer-topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  min-height: 52px;
}
#viewer-topbar .agent-name { font-weight: 600; font-size: 15px; }
#viewer-topbar .agent-hw   { font-size: 12px; color: var(--text-muted); }
#viewer-topbar .spacer { flex: 1; }
.btn-icon {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px; font-weight: 500;
  padding: 7px 14px;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.btn-icon:hover { background: rgba(59,130,246,.15); border-color: var(--border-hover); color: var(--text-primary); }
.btn-icon.danger:hover { background: rgba(239,68,68,.15); border-color: rgba(239,68,68,.35); color: var(--danger); }

#viewer-container {
  flex: 1; display: flex; align-items: center; justify-content: center;
  background: #060810;
  position: relative; overflow: hidden;
  padding: 8px;
}

#viewer-grid {
  display: grid;
  width: 100%;
  height: 100%;
  gap: 8px;
  box-sizing: border-box;
}

#viewer-grid[data-count="0"] { display: none; }
#viewer-grid[data-count="1"] { grid-template-columns: 1fr; grid-template-rows: 1fr; }
#viewer-grid[data-count="2"] { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr; }
#viewer-grid[data-count="3"] { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }
#viewer-grid[data-count="3"] .grid-tile:last-child { grid-column: span 2; }
#viewer-grid[data-count="4"] { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; }

/* ── Grid Tile ──────────────────────────────────────────────────────── */
.grid-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-width: 0; min-height: 0;
  cursor: pointer;
}

.grid-tile:hover { border-color: var(--border-hover); }

.grid-tile.focused {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow), 0 4px 20px rgba(59, 130, 246, 0.25);
}

.grid-tile.focused .tile-header {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.2) 0%, var(--bg-elevated) 100%);
}

.grid-tile.focused .focus-badge {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 8px var(--accent-glow);
}

.grid-tile.connection-failed { border-color: var(--danger); }

/* Tile Header */
.tile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  user-select: none;
  min-height: 36px;
  flex-shrink: 0;
}

.tile-info {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.tile-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
  flex-shrink: 0;
}

.tile-hostname {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.focus-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
  transition: all var(--transition);
}

.btn-tile-disconnect {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: 4px;
  color: var(--danger);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  transition: background var(--transition);
}
.btn-tile-disconnect:hover { background: rgba(239, 68, 68, 0.28); }

/* Tile Body */
.tile-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: #000;
  overflow: hidden;
  min-height: 0;
}

.tile-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
  cursor: default !important;
  user-select: none;
}

.tile-video.active { display: block; }

.tile-overlay {
  position: absolute; inset: 0;
  display: none; align-items: center; justify-content: center;
  background: rgba(6, 8, 16, 0.85);
  z-index: 5; flex-direction: column; gap: 12px;
  color: var(--text-secondary);
  font-size: 13px;
}
.tile-overlay.active { display: flex; }

/* Cursor estándar nativo */
#custom-cursor {
  display: none !important;
}

#viewer-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; color: var(--text-muted); text-align: center; padding: 40px;
}
#viewer-placeholder .icon { font-size: 56px; opacity: .2; }
#viewer-placeholder h3 { font-size: 18px; font-weight: 600; color: var(--text-secondary); }
#viewer-placeholder p { font-size: 14px; max-width: 320px; }

/* Connecting overlay */
#connecting-overlay {
  position: absolute; inset: 0;
  display: none; align-items: center; justify-content: center;
  background: rgba(6,8,16,.85);
  z-index: 10; flex-direction: column; gap: 16px;
}
#connecting-overlay.active { display: flex; }
.spinner {
  width: 42px; height: 42px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ── Status Bar ────────────────────────────────────────────────────── */
#statusbar {
  grid-column: 1 / -1;
  /* hidden inside #app grid but referenced for future use */
}

/* ── Stats Bar ─────────────────────────────────────────────────────── */
#stats-bar {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex; gap: 24px; padding: 6px 20px; align-items: center;
}
.stat { font-size: 11px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.stat .val { color: var(--text-secondary); font-weight: 500; }

/* ── Keyboard Indicator ─────────────────────────────────────────────── */
#kbd-indicator {
  position: fixed; bottom: 54px; right: 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 12px; color: var(--text-secondary);
  opacity: 0; transition: opacity .3s;
  z-index: 20;
  pointer-events: none;
}
#kbd-indicator.visible { opacity: 1; }

/* ── Animations ─────────────────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .35; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes floatIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── OPERATIK Branding v2.0.1 ────────────────────────────────────────── */
.v-tag {
  font-size: 11px;
  background: rgba(249, 115, 22, 0.2);
  color: #f97316;
  border: 1px solid rgba(249, 115, 22, 0.4);
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  font-weight: 600;
}
.v-tag-sub {
  font-size: 10px;
  color: #f97316;
  font-weight: 700;
  margin-left: 4px;
}
.brand-footer-badge {
  margin-top: 18px;
  text-align: center;
  font-size: 11px;
  color: #94a3b8;
  border-top: 1px solid rgba(249, 115, 22, 0.2);
  padding-top: 12px;
}
.brand-footer-badge strong {
  color: #f97316;
  letter-spacing: 1px;
}

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  #app { grid-template-columns: 1fr; }
  #sidebar { display: none; }
}