/* =====================================================================
   AURA — Global Styles
   ===================================================================== */

:root {
  --bg:           #0f172a;
  --surface:      #1e293b;
  --surface-2:    #263245;
  --border:       rgba(148, 163, 184, 0.12);
  --text:         #e2e8f0;
  --text-muted:   #94a3b8;
  --primary:      #2dd4bf;
  --primary-dim:  rgba(45, 212, 191, 0.15);
  --error:        #f87171;
  --success:      #4ade80;
  --radius-sm:    0.375rem;
  --radius-md:    0.5rem;
  --radius-lg:    0.75rem;
  --transition:   150ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg:           #f8fafc;
  --surface:      #ffffff;
  --surface-2:    #f1f5f9;
  --border:       rgba(15, 23, 42, 0.1);
  --text:         #0f172a;
  --text-muted:   #64748b;
  --primary:      #0d9488;
  --primary-dim:  rgba(13, 148, 136, 0.12);
  --error:        #dc2626;
  --success:      #16a34a;
}

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

html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.9375rem;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.6;
}

button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input, textarea { font: inherit; color: inherit; }

/* ------------------------------------------------------------------ */
/* Login                                                                */
/* ------------------------------------------------------------------ */

.login-screen {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  background: var(--bg);
  padding: 1.5rem;
}

.login-card {
  width: 100%;
  max-width: 22rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.brand-lockup {
  text-align: center;
  margin-bottom: 0.25rem;
}

.brand-word {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--primary);
}

.brand-lockup p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Auth mode tabs */
.auth-tabs {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.auth-tab {
  flex: 1;
  padding: 0.45rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  transition: background var(--transition), color var(--transition);
  text-align: center;
}

.auth-tab.active {
  background: var(--primary-dim);
  color: var(--primary);
}

.auth-tab:not(.active):hover {
  background: var(--surface-2);
  color: var(--text);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}

.field input {
  padding: 0.55rem 0.75rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9375rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.error-text {
  font-size: 0.8125rem;
  color: var(--error);
  padding: 0.4rem 0.6rem;
  background: rgba(248, 113, 113, 0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.auth-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.25rem;
}

.link-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--primary);
  font-size: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-button:hover { opacity: 0.8; }

/* ------------------------------------------------------------------ */
/* Buttons                                                              */
/* ------------------------------------------------------------------ */

.primary-button {
  padding: 0.6rem 1.25rem;
  background: var(--primary);
  color: #0f172a;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: opacity var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.primary-button:hover:not(:disabled) { opacity: 0.85; }
.primary-button:active:not(:disabled) { transform: scale(0.98); }
.primary-button:disabled { opacity: 0.4; cursor: not-allowed; }

.ghost-button {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: background var(--transition), color var(--transition);
}

.ghost-button:hover { background: var(--surface-2); color: var(--text); }

/* ------------------------------------------------------------------ */
/* App Shell                                                            */
/* ------------------------------------------------------------------ */

.app-shell {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  height: 3.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  gap: 1rem;
}

.brand-block {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.brand-block .brand-word {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--primary);
}

.brand-block span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-pill {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  background: var(--primary-dim);
  color: var(--primary);
  border-radius: var(--radius-sm);
}

/* ------------------------------------------------------------------ */
/* Layout                                                               */
/* ------------------------------------------------------------------ */

.layout {
  display: grid;
  grid-template-columns: 16rem 1fr 16rem;
  flex: 1;
  overflow: hidden;
}

.panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.right-panel { border-right: none; border-left: 1px solid var(--border); }
.center-panel { border-right: none; }

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.panel-heading h2 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.panel-heading span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ------------------------------------------------------------------ */
/* Agent List                                                           */
/* ------------------------------------------------------------------ */

.agent-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.4rem;
}

.agent-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  text-align: left;
  transition: background var(--transition);
}

.agent-row:hover { background: var(--surface-2); }
.agent-row.selected { background: var(--primary-dim); color: var(--primary); }

.agent-dot, .health-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-ready  { background: var(--success); }
.status-error  { background: var(--error); }
.status-idle   { background: var(--text-muted); }
.status-active { background: var(--primary); }

.agent-info {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.agent-info-header {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-bottom: 0.4rem;
}

.agent-info-header strong { font-size: 0.875rem; }
.agent-info-header span   { font-size: 0.75rem; color: var(--text-muted); }
.agent-info p             { font-size: 0.75rem; color: var(--text-muted); line-height: 1.5; }

.connection-card {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ------------------------------------------------------------------ */
/* Chat                                                                 */
/* ------------------------------------------------------------------ */

.chat-feed {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-message { display: flex; }
.chat-message.user { justify-content: flex-end; }

.message-shell { max-width: 80%; display: flex; flex-direction: column; gap: 0.3rem; }
.chat-message.user .message-shell { align-items: flex-end; }

.user-bubble {
  background: var(--primary);
  color: #0f172a;
  padding: 0.55rem 0.9rem;
  border-radius: 1rem 1rem 0.25rem 1rem;
  font-size: 0.9rem;
}

.user-bubble p { max-width: 100%; text-wrap: pretty; }

.markdown {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.65rem 0.9rem;
  border-radius: 0.25rem 1rem 1rem 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

.markdown p  { margin-bottom: 0.5rem; }
.markdown p:last-child { margin-bottom: 0; }
.markdown code {
  background: var(--surface-2);
  padding: 0.1em 0.35em;
  border-radius: 0.25rem;
  font-size: 0.85em;
  font-family: 'Fira Code', 'Cascadia Code', monospace;
}
.markdown pre {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  overflow-x: auto;
  margin: 0.5rem 0;
}
.markdown pre code { background: none; padding: 0; }

.thinking {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.4rem 0.6rem;
}

.cursor {
  display: inline-block;
  animation: blink 0.9s step-end infinite;
  color: var(--primary);
  margin-left: 2px;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.message-footer {
  display: flex;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  padding: 0 0.25rem;
}

.tools-block { margin-top: 0.25rem; }

.tools-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 0.2rem 0;
  transition: color var(--transition);
}

.tools-toggle:hover { color: var(--text); }

.tools-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.35rem;
}

.tool-row {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
}

.tool-row strong { color: var(--primary); }
.tool-row span   { color: var(--text-muted); }

.skeleton-row {
  height: 2rem;
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
  margin: 0 1rem;
}

@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ------------------------------------------------------------------ */
/* Composer                                                             */
/* ------------------------------------------------------------------ */

.composer-frame {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.composer {
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
}

.composer textarea {
  flex: 1;
  resize: none;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  max-height: 140px;
  overflow-y: auto;
}

.composer textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.send-button {
  padding: 0.55rem 0.75rem;
  flex-shrink: 0;
  height: 2.35rem;
}

/* ------------------------------------------------------------------ */
/* Right Panel — Feed / Stats / Health                                  */
/* ------------------------------------------------------------------ */

.feed-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.feed-row {
  display: grid;
  grid-template-columns: 1.5rem 1fr auto;
  gap: 0.4rem;
  align-items: start;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: 0.75rem;
}

.feed-icon { font-size: 1rem; line-height: 1; }
.feed-row strong { font-size: 0.75rem; }
.feed-row p      { color: var(--text-muted); font-size: 0.7rem; margin-top: 0.1rem; }
.feed-row time   { color: var(--text-muted); font-size: 0.7rem; white-space: nowrap; }

.stats-card, .health-card {
  padding: 0.65rem 1rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.stat-row, .health-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
}

.stat-row span, .health-row span   { color: var(--text-muted); }
.stat-row strong, .health-row strong { font-weight: 600; }

.health-row { gap: 0.4rem; justify-content: flex-start; }
.health-row span   { flex: 1; }
.health-row strong { margin-left: auto; }

.muted { font-size: 0.75rem; color: var(--text-muted); padding: 0.75rem; text-align: center; }

/* ------------------------------------------------------------------ */
/* Scrollbars                                                           */
/* ------------------------------------------------------------------ */

::-webkit-scrollbar       { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ------------------------------------------------------------------ */
/* Responsive                                                           */
/* ------------------------------------------------------------------ */

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .left-panel, .right-panel { display: none; }
}