bugfix speech-to-text and implement avatar and personal greeting

frontend/css/style.css

@@ -687,6 +687,155 @@ tr:hover td {
   color: #fff;
 }
 
+.toast-info {
+  background: linear-gradient(135deg, rgba(96, 165, 250, 0.9), rgba(59, 130, 246, 0.9));
+  color: #fff;
+}
+
+/* ── Welcome Section ─────────────────────────────────────────────── */
+.welcome-section {
+  background: var(--gradient-card);
+  backdrop-filter: blur(var(--glass-blur));
+  -webkit-backdrop-filter: blur(var(--glass-blur));
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-lg);
+  padding: 28px 32px;
+  margin-bottom: 8px;
+  box-shadow: var(--shadow-md), var(--shadow-glow);
+  animation: messageIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
+}
+
+.welcome-row {
+  display: flex;
+  align-items: center;
+  gap: 24px;
+}
+
+.welcome-text {
+  flex: 1;
+  min-width: 0;
+}
+
+.welcome-greeting {
+  font-size: 1.4rem;
+  font-weight: 700;
+  background: var(--gradient-primary);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+  letter-spacing: -0.02em;
+  margin-bottom: 4px;
+}
+
+.welcome-subtitle {
+  color: var(--text-secondary);
+  font-size: 0.9rem;
+  margin-bottom: 8px;
+}
+
+.welcome-meta {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 0.8rem;
+  color: var(--text-muted);
+  opacity: 0;
+  transform: translateY(6px);
+  transition: opacity 0.4s ease, transform 0.4s ease;
+}
+
+.welcome-meta.visible {
+  opacity: 1;
+  transform: translateY(0);
+}
+
+.welcome-meta strong {
+  color: var(--text-secondary);
+}
+
+.meta-dot {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background: var(--success);
+  flex-shrink: 0;
+  box-shadow: 0 0 6px rgba(52, 211, 153, 0.5);
+}
+
+/* ── Avatar ───────────────────────────────────────────────────────── */
+.avatar-container {
+  position: relative;
+  width: 72px;
+  height: 72px;
+  flex-shrink: 0;
+}
+
+.avatar-ring {
+  position: absolute;
+  inset: 0;
+  border-radius: 50%;
+  border: 2px solid transparent;
+  background: var(--gradient-primary) border-box;
+  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
+  -webkit-mask-composite: xor;
+  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
+  mask-composite: exclude;
+  animation: avatarSpin 6s linear infinite;
+}
+
+.avatar-placeholder {
+  position: absolute;
+  inset: 4px;
+  border-radius: 50%;
+  background: var(--glass-bg);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 1.8rem;
+  animation: avatarBreathe 3s ease-in-out infinite;
+  box-shadow: inset 0 0 20px rgba(124, 108, 240, 0.08);
+}
+
+.avatar-pulse {
+  position: absolute;
+  inset: -4px;
+  border-radius: 50%;
+  border: 1px solid rgba(124, 108, 240, 0.15);
+  animation: avatarPulseAnim 3s ease-in-out infinite;
+}
+
+@keyframes avatarSpin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@keyframes avatarBreathe {
+
+  0%,
+  100% {
+    transform: scale(1);
+  }
+
+  50% {
+    transform: scale(1.03);
+  }
+}
+
+@keyframes avatarPulseAnim {
+
+  0%,
+  100% {
+    transform: scale(1);
+    opacity: 0.5;
+  }
+
+  50% {
+    transform: scale(1.12);
+    opacity: 0;
+  }
+}
+
 /* ── Animations ───────────────────────────────────────────────────── */
 @keyframes fadeIn {
   from {
@@ -825,6 +974,27 @@ tr:hover td {
   .hide-mobile {
     display: none !important;
   }
+
+  .welcome-section {
+    padding: 20px;
+  }
+
+  .welcome-row {
+    gap: 16px;
+  }
+
+  .avatar-container {
+    width: 56px;
+    height: 56px;
+  }
+
+  .avatar-placeholder {
+    font-size: 1.4rem;
+  }
+
+  .welcome-greeting {
+    font-size: 1.15rem;
+  }
 }
 
 /* ── Utilities ────────────────────────────────────────────────────── */