/* =====================================================
   STUDY BUDDY – style.css
   Modern Dark Theme with glassmorphism
   ===================================================== */

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

:root {
  /* Brand palette */
  --primary:        #6C63FF;
  --primary-light:  #8B85FF;
  --primary-dark:   #4B44D6;
  --accent:         #00D2FF;
  --accent-2:       #FF6B9D;
  --success:        #00E5A0;
  --warning:        #FFD166;
  --error:          #FF5A5F;

  /* Background layers */
  --bg-base:        #0A0A14;
  --bg-surface:     #111125;
  --bg-card:        rgba(255,255,255,0.04);
  --bg-input:       rgba(255,255,255,0.06);
  --bg-hover:       rgba(255,255,255,0.08);

  /* Text */
  --text-primary:   #F0F0FF;
  --text-secondary: #9B9BC4;
  --text-muted:     #5C5C8A;

  /* Borders */
  --border:         rgba(108,99,255,0.18);
  --border-light:   rgba(255,255,255,0.07);

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:  0 8px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.6);
  --glow:       0 0 24px rgba(108,99,255,0.35);

  /* Layout */
  --sidebar-w:  270px;
  --topbar-h:   64px;
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  /* Transitions */
  --ease:       cubic-bezier(0.4, 0, 0.2, 1);
  --dur:        0.22s;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  height: 100dvh;
  overflow: hidden;
  position: relative;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(108,99,255,0.35); border-radius: 99px; }

/* =====================================================
   BACKGROUND BLOBS
   ===================================================== */
.bg-blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  animation: floatBlob 10s ease-in-out infinite alternate;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #6C63FF 0%, transparent 70%);
  top: -180px; left: -150px;
  animation-delay: 0s;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #00D2FF 0%, transparent 70%);
  bottom: -150px; right: -100px;
  animation-delay: -4s;
}
.blob-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #FF6B9D 0%, transparent 70%);
  top: 50%; left: 40%;
  animation-delay: -7s;
}
@keyframes floatBlob {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(30px,20px) scale(1.1); }
}

/* =====================================================
   MODAL
   ===================================================== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s var(--ease);
}
.modal-overlay.hidden { display: none; }

.modal-box {
  background: linear-gradient(145deg, #1A1A35, #111128);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  max-width: 420px; width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg), var(--glow);
  animation: slideUp 0.35s var(--ease);
}
.modal-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}
.modal-box h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.modal-box p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}
.modal-box p a {
  color: var(--accent);
  text-decoration: none;
}
.modal-box p a:hover { text-decoration: underline; }

.modal-input-wrap {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.modal-input-wrap input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--dur) var(--ease);
}
.modal-input-wrap input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.2);
}
.modal-input-wrap button {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 0 0.8rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.modal-input-wrap button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.modal-hint {
  font-size: 0.75rem !important;
  color: var(--text-muted) !important;
  margin-bottom: 1.5rem !important;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.8rem 2rem;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), filter var(--dur) var(--ease);
  box-shadow: 0 4px 20px rgba(108,99,255,0.45);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(108,99,255,0.6);
  filter: brightness(1.1);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline-sm {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-outline-sm:hover {
  background: var(--bg-hover);
  border-color: var(--primary);
  color: var(--text-primary);
}

/* =====================================================
   LAYOUT
   ===================================================== */
.app-wrapper {
  display: flex;
  height: 100dvh;
  position: relative;
  z-index: 1;
}

/* =====================================================
   SIDEBAR
   ===================================================== */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: rgba(17,17,37,0.85);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0;
  transition: transform var(--dur) var(--ease), width var(--dur) var(--ease);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-header {
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 1.25rem;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.sidebar-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
  box-shadow: 0 0 14px rgba(108,99,255,0.5);
}
.logo-name {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}
.logo-tagline {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.sidebar-section {
  padding: 0 1rem;
  margin-bottom: 1.5rem;
}
.sidebar-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  padding: 0 0.25rem;
}

.sidebar-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  padding: 0.65rem 0.9rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  margin-bottom: 0.3rem;
  transition: all var(--dur) var(--ease);
}
.sidebar-btn .btn-icon { font-size: 1rem; }
.sidebar-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}
.sidebar-btn.active {
  background: rgba(108,99,255,0.18);
  border-color: rgba(108,99,255,0.4);
  color: var(--primary-light);
}

.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.topic-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 99px;
  color: var(--text-secondary);
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.topic-chip:hover {
  background: rgba(108,99,255,0.15);
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-1px);
}

.sidebar-footer {
  margin-top: auto;
  padding: 1rem 1.25rem 0.5rem;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.8;
}
.sidebar-footer strong { color: var(--text-secondary); }

/* =====================================================
   CHAT MAIN
   ===================================================== */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100dvh;
}

/* ---- Top Bar ---- */
.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1.25rem;
  background: rgba(17,17,37,0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}

.icon-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease);
}
.icon-btn:hover { background: var(--bg-hover); }
.hamburger {
  display: block;
  width: 20px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: background var(--dur) var(--ease);
}
.icon-btn:hover .hamburger { background: var(--text-primary); }

.topbar-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 1;
}
.topbar-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary);
}
.topbar-name {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
}
.topbar-status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.status-dot {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 6px var(--success);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

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

/* =====================================================
   CHAT BODY
   ===================================================== */
.chat-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  scroll-behavior: smooth;
}

/* ---- Welcome Screen ---- */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  padding: 2rem 0;
  animation: fadeInUp 0.5s var(--ease);
}
.welcome-screen.hidden { display: none; }

.welcome-avatar-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 1.5rem;
}
.welcome-avatar {
  width: 100px; height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary);
  box-shadow: 0 0 32px rgba(108,99,255,0.5);
  position: relative; z-index: 1;
}
.pulse-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(108,99,255,0.4);
  animation: ringPulse 2.5s ease-out infinite;
}
@keyframes ringPulse {
  0%   { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

.welcome-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #fff, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.welcome-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.quick-questions-grid { width: 100%; }
.quick-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 1rem;
  text-align: left;
  letter-spacing: 0.03em;
}
.quick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}
.quick-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all var(--dur) var(--ease);
  backdrop-filter: blur(8px);
}
.quick-card:hover {
  background: rgba(108,99,255,0.12);
  border-color: rgba(108,99,255,0.4);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.2);
}
.qcard-icon { font-size: 1.4rem; }
.qcard-text {
  font-size: 0.825rem;
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.4;
}
.quick-card:hover .qcard-text { color: var(--text-primary); }

/* =====================================================
   MESSAGES
   ===================================================== */
.messages-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

/* --- Message Bubble --- */
.message-row {
  display: flex;
  align-items: flex-end;
  gap: 0.7rem;
  animation: fadeInUp 0.3s var(--ease);
}
.message-row.user { flex-direction: row-reverse; }

.msg-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid transparent;
}
.message-row.ai .msg-avatar {
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(108,99,255,0.4);
}
.message-row.user .msg-avatar {
  border-color: var(--accent-2);
  background: linear-gradient(135deg, var(--accent-2), #c94b8c);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}

.bubble {
  max-width: 72%;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  line-height: 1.7;
  position: relative;
  word-break: break-word;
}

/* AI bubble */
.message-row.ai .bubble {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-light);
  border-bottom-left-radius: 4px;
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

/* User bubble */
.message-row.user .bubble {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-bottom-right-radius: 4px;
  color: #fff;
  box-shadow: 0 4px 16px rgba(108,99,255,0.35);
}

/* Timestamp */
.bubble-time {
  display: block;
  font-size: 0.65rem;
  color: rgba(255,255,255,0.35);
  margin-top: 0.4rem;
  text-align: right;
}
.message-row.ai .bubble-time { text-align: left; }

/* Markdown-like formatting in bubbles */
.bubble strong { font-weight: 600; }
.bubble em { font-style: italic; }
.bubble code {
  background: rgba(255,255,255,0.1);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.85em;
}
.bubble pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  overflow-x: auto;
  margin: 0.6rem 0;
}
.bubble pre code {
  background: none;
  padding: 0;
  font-size: 0.82em;
}
.bubble ul, .bubble ol {
  padding-left: 1.4rem;
  margin: 0.4rem 0;
}
.bubble li { margin-bottom: 0.2rem; }
.bubble h1, .bubble h2, .bubble h3 {
  font-family: 'Outfit', sans-serif;
  margin: 0.8rem 0 0.4rem;
  color: var(--primary-light);
}
.bubble h1 { font-size: 1.1rem; }
.bubble h2 { font-size: 1rem; }
.bubble h3 { font-size: 0.95rem; }
.bubble p { margin-bottom: 0.5rem; }
.bubble p:last-child { margin-bottom: 0; }
.bubble hr {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 0.75rem 0;
}
.bubble blockquote {
  border-left: 3px solid var(--primary);
  padding-left: 0.75rem;
  color: var(--text-secondary);
  font-style: italic;
  margin: 0.5rem 0;
}

/* --- Loading Indicator --- */
.loading-row {
  display: flex;
  align-items: flex-end;
  gap: 0.7rem;
  animation: fadeInUp 0.3s var(--ease);
}
.loading-bubble {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  border-bottom-left-radius: 4px;
  padding: 0.9rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(8px);
}
.loading-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-style: italic;
}
.dots {
  display: flex;
  gap: 4px;
}
.dot {
  width: 6px; height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: dotBounce 1.4s ease-in-out infinite;
}
.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.5; }
  40%            { transform: translateY(-6px); opacity: 1; }
}

/* Error message */
.error-bubble {
  background: rgba(255,90,95,0.1);
  border: 1px solid rgba(255,90,95,0.3);
  border-radius: var(--radius-md);
  padding: 0.8rem 1rem;
  color: #FF9A9E;
  font-size: 0.85rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  max-width: 72%;
}

/* =====================================================
   CHAT INPUT AREA
   ===================================================== */
.chat-input-area {
  padding: 1rem 1.25rem;
  background: rgba(17,17,37,0.7);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
}

.input-container {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.5rem 0.5rem 1.1rem;
  max-width: 800px;
  margin: 0 auto;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input-container:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.2), var(--glow);
}

#user-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  line-height: 1.6;
  resize: none;
  max-height: 160px;
  overflow-y: auto;
  padding: 0.4rem 0;
}
#user-input::placeholder { color: var(--text-muted); }

.send-btn {
  width: 42px; height: 42px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--dur) var(--ease);
  box-shadow: 0 4px 14px rgba(108,99,255,0.4);
}
.send-btn:hover:not(:disabled) {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(108,99,255,0.6);
}
.send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  box-shadow: none;
}
.send-btn:active:not(:disabled) { transform: scale(0.96); }

.input-hint {
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    z-index: 100;
    transform: translateX(-100%);
    width: 280px;
  }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }

  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99;
  }
  .sidebar-overlay.active { display: block; }

  .welcome-title { font-size: 1.5rem; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .bubble { max-width: 85%; }
}

@media (max-width: 480px) {
  .quick-grid { grid-template-columns: 1fr 1fr; }
  .welcome-subtitle { font-size: 0.85rem; }
  .topbar { padding: 0 1rem; }
  .chat-body { padding: 1rem; }
  .chat-input-area { padding: 0.75rem 1rem; }
  .bubble { max-width: 90%; font-size: 0.85rem; }
  #new-chat-topbar { display: none; }
}