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

/* ── Nucleotto brand tokens ── */
:root {
  --accent:        #4f8ef7;
  --accent-purple: #7b5cf7;
  --accent-teal:   #00d4aa;
  --font-sans:     'Inter', system-ui, sans-serif;
  --font-display:  'Space Grotesk', system-ui, sans-serif;
}

/* ── Dark theme overrides ── */
.dark {
  --background:     #0a0a0a !important;
  --surface:        #111111 !important;
  --surface-hover:  #1a1a1a !important;
  --border:         rgba(255,255,255,0.07) !important;
  --text-primary:   #f0f0f0 !important;
  --text-secondary: #9ca3af !important;
}

/* ── Global ── */
* { box-sizing: border-box; }

body {
  font-family: var(--font-sans) !important;
  -webkit-font-smoothing: antialiased;
  background-color: #0a0a0a !important;
}

/* ── App shell ── */
#root, .MuiBox-root {
  background-color: #0a0a0a !important;
}

/* ── Header / navbar ── */
header, nav, .MuiAppBar-root {
  background-color: #111111 !important;
  border-bottom: 1px solid rgba(255,255,255,0.07) !important;
  box-shadow: none !important;
}

/* App title */
header h1, header .MuiTypography-root {
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  letter-spacing: -0.02em !important;
  color: #f0f0f0 !important;
}

/* ── Sidebar ── */
.MuiDrawer-paper, aside {
  background-color: #0d0d0d !important;
  border-right: 1px solid rgba(255,255,255,0.07) !important;
}

/* ── Chat container ── */
.MuiContainer-root {
  background-color: #0a0a0a !important;
}

/* ── Message bubbles ── */
/* User messages */
[class*="user"] .MuiPaper-root,
[data-role="user"] .MuiPaper-root {
  background: linear-gradient(135deg, #4f8ef7 0%, #7b5cf7 100%) !important;
  color: #ffffff !important;
  border-radius: 16px 16px 4px 16px !important;
  box-shadow: 0 2px 12px rgba(79,142,247,0.25) !important;
}

/* Assistant messages */
[class*="assistant"] .MuiPaper-root,
[data-role="assistant"] .MuiPaper-root {
  background-color: #161616 !important;
  border: 1px solid rgba(255,255,255,0.07) !important;
  border-radius: 16px 16px 16px 4px !important;
  color: #f0f0f0 !important;
}

/* ── Message text ── */
.MuiTypography-root {
  font-family: var(--font-sans) !important;
  line-height: 1.65 !important;
}

/* ── Code blocks ── */
pre, code {
  background-color: #1a1a1a !important;
  border: 1px solid rgba(255,255,255,0.08) !important;
  border-radius: 8px !important;
  font-size: 0.875rem !important;
}

/* ── Input area ── */
.MuiInputBase-root, textarea, [contenteditable] {
  background-color: #161616 !important;
  border: 1px solid rgba(255,255,255,0.1) !important;
  border-radius: 12px !important;
  color: #f0f0f0 !important;
  font-family: var(--font-sans) !important;
  transition: border-color 0.2s ease !important;
}

.MuiInputBase-root:focus-within, textarea:focus {
  border-color: #4f8ef7 !important;
  box-shadow: 0 0 0 3px rgba(79,142,247,0.15) !important;
}

/* Input placeholder */
textarea::placeholder, .MuiInputBase-input::placeholder {
  color: #6b7280 !important;
}

/* ── Send button ── */
button[type="submit"], [aria-label*="send"], [aria-label*="Send"] {
  background: linear-gradient(135deg, #4f8ef7 0%, #7b5cf7 100%) !important;
  border-radius: 10px !important;
  box-shadow: 0 2px 8px rgba(79,142,247,0.3) !important;
  transition: opacity 0.2s ease, transform 0.1s ease !important;
}

button[type="submit"]:hover {
  opacity: 0.9 !important;
  transform: scale(1.02) !important;
}

/* ── Buttons general ── */
.MuiButton-root {
  border-radius: 8px !important;
  font-family: var(--font-sans) !important;
  font-weight: 500 !important;
  text-transform: none !important;
}

.MuiButton-contained {
  background: linear-gradient(135deg, #4f8ef7 0%, #7b5cf7 100%) !important;
  box-shadow: 0 2px 8px rgba(79,142,247,0.3) !important;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0a0a0a; }
::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Chips / tags ── */
.MuiChip-root {
  background-color: rgba(79,142,247,0.12) !important;
  border: 1px solid rgba(79,142,247,0.25) !important;
  color: #4f8ef7 !important;
  border-radius: 6px !important;
}

/* ── Loading / streaming indicator ── */
@keyframes pulse-accent {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.MuiCircularProgress-root {
  color: #4f8ef7 !important;
}

/* ── Dividers ── */
.MuiDivider-root {
  border-color: rgba(255,255,255,0.07) !important;
}

/* ── Dot-grid background (subtle) ── */
main {
  background-image: radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px) !important;
  background-size: 28px 28px !important;
}

/* ── Login page: replace Chainlit logo with Otto logo ── */
/* Hide the default Chainlit SVG logo on login */
.login-container img[src*="chainlit"],
.login-container svg,
form img[src*="chainlit"],
form svg[class*="chainlit"],
[class*="login"] svg,
[class*="Login"] svg {
  display: none !important;
}

/* Inject Otto logo above the login form */
form::before,
.login-container form::before {
  content: '';
  display: block;
  width: 140px;
  height: 48px;
  margin: 0 auto 24px;
  background: url('/public/logo_dark.png') center/contain no-repeat;
}

/* Login page background */
[class*="login"],
[class*="Login"],
.login-container {
  background-color: #0a0a0a !important;
}

/* Login card */
[class*="login"] form,
[class*="Login"] form,
.login-container form {
  background-color: #111111 !important;
  border: 1px solid rgba(255,255,255,0.07) !important;
  border-radius: 16px !important;
}

/* Login input fields */
[class*="login"] input,
[class*="Login"] input {
  background-color: #161616 !important;
  border: 1px solid rgba(255,255,255,0.1) !important;
  color: #f0f0f0 !important;
  border-radius: 8px !important;
}

/* Login submit button */
[class*="login"] button[type="submit"],
[class*="Login"] button[type="submit"] {
  background: linear-gradient(135deg, #4f8ef7 0%, #7b5cf7 100%) !important;
  border-radius: 8px !important;
}