:root {
  --color-primary: #0F172A;
  --color-on-primary: #FFFFFF;
  --color-secondary: #1E293B;
  --color-accent: #22C55E;
  --color-accent-hover: #16A34A;
  --color-background: #020617;
  --color-foreground: #F8FAFC;
  --color-muted: #1A1E2F;
  --color-muted-text: #94A3B8;
  --color-border: #334155;
  --color-destructive: #EF4444;
  --color-ring: #22C55E;
  --sidebar-width: 260px;
  --radius: 12px;
  --shadow-glow: 0 0 24px rgba(34, 197, 94, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: "Fira Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

code, .prompt-textarea, .metric-value {
  font-family: "Fira Code", ui-monospace, monospace;
}

button, input, textarea {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, #0B1220 0%, #020617 100%);
  border-right: 1px solid var(--color-border);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 0 8px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-glow);
}

.brand-icon svg { width: 20px; height: 20px; }

.brand-title {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-sub {
  color: var(--color-muted-text);
  font-size: 12px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--color-muted-text);
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
  text-align: left;
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.nav-item:hover,
.nav-item:focus-visible {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-foreground);
  outline: none;
}

.nav-item.active {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.25);
  color: var(--color-foreground);
}

.sidebar-footer { margin-top: auto; padding: 0 8px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--color-muted);
  border: 1px solid var(--color-border);
  color: var(--color-muted-text);
  font-size: 12px;
}

.status-pill.ok { color: #86EFAC; border-color: rgba(34, 197, 94, 0.35); }
.status-pill.error { color: #FCA5A5; border-color: rgba(239, 68, 68, 0.35); }
.status-pill.dirty { color: #FDE68A; border-color: rgba(250, 204, 21, 0.35); }

.main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 28px 32px 0;
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.topbar-desc {
  margin: 6px 0 0;
  color: var(--color-muted-text);
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.content {
  padding: 24px 32px 40px;
}

.panel { display: none; }
.panel.active { display: block; }

.card {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.55) 0%, rgba(15, 23, 42, 0.85) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-glow);
}

.card-head h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.card-head p {
  margin: 0 0 20px;
  color: var(--color-muted-text);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field { display: flex; flex-direction: column; gap: 8px; }
.field-full { grid-column: 1 / -1; }

.field-label {
  font-size: 13px;
  font-weight: 600;
  color: #CBD5E1;
}

.field-hint {
  font-size: 12px;
  color: var(--color-muted-text);
}

input[type="text"],
input[type="password"],
input[type="number"],
textarea {
  width: 100%;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: rgba(2, 6, 23, 0.65);
  color: var(--color-foreground);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

input:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}

.input-wrap {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.input-wrap input { flex: 1; }

.icon-btn {
  width: 42px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-secondary);
  color: var(--color-muted-text);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: color 180ms ease, border-color 180ms ease;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  color: var(--color-foreground);
  border-color: #475569;
  outline: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 600;
  transition: background 180ms ease, border-color 180ms ease, transform 120ms ease;
}

.btn svg { width: 16px; height: 16px; }

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: #052E16;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-hover);
  outline: none;
}

.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-foreground);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(255, 255, 255, 0.04);
  outline: none;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.metrics-row-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-value-sm {
  font-size: 16px;
  line-height: 1.3;
  word-break: break-word;
}

.metric {
  padding: 16px;
  border-radius: 10px;
  background: rgba(2, 6, 23, 0.45);
  border: 1px solid var(--color-border);
}

.metric-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(34, 197, 94, 0.25);
}

.metric-label {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-muted-text);
}

.models-section {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.models-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
}

.prompt-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.prompt-tab {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(2, 6, 23, 0.45);
  color: var(--color-muted-text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 180ms ease;
}

.prompt-tab.active {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.35);
  color: var(--color-foreground);
}

.prompt-editor { display: flex; flex-direction: column; gap: 10px; }

.prompt-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.prompt-name { font-weight: 600; }

.prompt-chars {
  font-size: 12px;
  color: var(--color-muted-text);
}

.prompt-textarea {
  min-height: 360px;
  resize: vertical;
  line-height: 1.45;
  tab-size: 2;
}

.rag-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.category-chip {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(2, 6, 23, 0.45);
  font-size: 12px;
  color: var(--color-muted-text);
}

.upload-zone {
  border: 1px dashed var(--color-border);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  background: rgba(2, 6, 23, 0.35);
  transition: border-color 180ms ease, background 180ms ease;
}

.upload-zone.dragover {
  border-color: var(--color-accent);
  background: rgba(34, 197, 94, 0.06);
}

.upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--color-secondary);
  color: var(--color-accent);
}

.upload-icon svg { width: 22px; height: 22px; }

.upload-title {
  margin: 0 0 6px;
  font-weight: 600;
}

.upload-sub {
  margin: 0 0 16px;
  color: var(--color-muted-text);
  font-size: 13px;
}

.upload-file {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--color-accent);
  min-height: 18px;
}

.upload-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.upload-progress {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted-text);
}

.upload-progress.hidden { display: none; }

.upload-progress-bar {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), #86EFAC, var(--color-accent));
  background-size: 200% 100%;
  animation: progress-slide 1.2s linear infinite;
}

@keyframes progress-slide {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

.hidden { display: none !important; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(34, 197, 94, 0.08), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(59, 130, 246, 0.06), transparent 45%),
    var(--color-background);
}

.login-card {
  width: min(420px, 100%);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, #0B1220 0%, #020617 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.login-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
  padding: 0;
}

.login-brand-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-brand-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
  display: block;
}

.login-brand-text {
  align-self: flex-start;
  text-align: left;
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0;
  align-items: stretch;
}

.sidebar-brand-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.sidebar-brand-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
  display: block;
}

.sidebar-brand-text {
  align-self: flex-start;
  text-align: left;
}

.sidebar-brand-text .brand-title {
  font-size: 15px;
  line-height: 1.35;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.btn-full { width: 100%; justify-content: center; }

.login-error {
  margin: 0;
  font-size: 13px;
  color: var(--color-destructive);
}

.user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  padding: 0 4px;
}

.user-name {
  font-size: 13px;
  color: var(--color-muted-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
}

.nav-item.hidden { display: none; }

.users-subtitle {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 600;
}

.users-create {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.users-create-grid { margin-bottom: 12px; }

.users-perms,
.user-row-perms {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.perm-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: rgba(15, 23, 42, 0.6);
  font-size: 13px;
  color: var(--color-muted-text);
  cursor: pointer;
  user-select: none;
}

.perm-chip input { accent-color: var(--color-accent); }

.perm-chip-sm { font-size: 12px; padding: 4px 8px; }

.users-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.user-row {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.35);
}

.user-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.user-row-name { font-size: 15px; }

.user-row-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.user-password-field { margin: 0; }

.users-empty {
  padding: 20px;
  text-align: center;
  color: var(--color-muted-text);
  font-size: 14px;
}

.logs-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 12px;
}

.logs-field { min-width: 120px; margin: 0; }
.logs-field-grow { flex: 1 1 220px; }

.logs-autorefresh {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  color: var(--color-muted-text);
  font-size: 13px;
  user-select: none;
}

.logs-clear-btn { color: var(--color-destructive); }

.logs-meta {
  font-size: 12px;
  color: var(--color-muted-text);
  margin-bottom: 10px;
}

.logs-view {
  max-height: min(70vh, 720px);
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: rgba(2, 6, 23, 0.65);
  padding: 12px;
  font-family: "Fira Code", ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.45;
}

.logs-line {
  padding: 2px 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.35);
  word-break: break-word;
}

.logs-line:last-child { border-bottom: none; }

.logs-ts {
  color: #64748B;
  margin-right: 8px;
}

.logs-logger {
  color: #94A3B8;
  margin-right: 8px;
}

.logs-msg { color: #E2E8F0; }

.logs-line.logs-info .logs-msg { color: #E2E8F0; }
.logs-line.logs-warning .logs-msg { color: #FBBF24; }
.logs-line.logs-error .logs-msg { color: #F87171; }
.logs-line.logs-debug .logs-msg { color: #93C5FD; }

.logs-empty {
  padding: 24px;
  text-align: center;
  color: var(--color-muted-text);
}

.logs-error { color: var(--color-destructive); }

.toast-container {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.toast {
  min-width: 280px;
  max-width: 420px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: #0B1220;
  color: var(--color-foreground);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  animation: toast-in 220ms ease;
}

.toast.success { border-color: rgba(34, 197, 94, 0.35); }
.toast.error { border-color: rgba(239, 68, 68, 0.35); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 960px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
  }
  .nav-item { white-space: nowrap; }
  .sidebar-footer { display: none; }
  .topbar, .content { padding-left: 20px; padding-right: 20px; }
  .field-grid, .metrics-row, .metrics-row-3 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}