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Chatbot UI: improve conversation flow with auto-scroll and scroll-to-bottom button #699

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Chatbot UI: improve conversation flow with auto-scroll and scroll-to-bottom button #699

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164 changes: 139 additions & 25 deletions application/frontend/src/pages/chatbot/chatbot.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,11 @@

.chat-container {
margin: 3rem auto;
margin-top: 1.5rem;
max-width: 960px;
display: flex;
flex-direction: column;
position: relative;
}
.chat-container.chat-active {
height: calc(100vh - 179px);
Expand Down Expand Up @@ -50,14 +52,35 @@
Header
========================= */

h1.ui.header {
margin-bottom: 1rem !important;
/* =========================
Chatbot title
========================= */

h1.ui.header.chatbot-title {
font-weight: 600;
line-height: 1.25;

/* Fluid scaling */
font-size: clamp(1.4rem, 3vw, 2.2rem);

/* Desktop spacing */
margin-top: 2rem;
margin-bottom: 1rem !important;
}

/* Tablet & below */
@media (max-width: 768px) {
h1.ui.header {
margin-top: 1.5rem;
h1.ui.header.chatbot-title {
margin-top: 2.75rem;
margin-bottom: 0.75rem !important;
font-size: clamp(1.35rem, 4vw, 1.8rem);
}
}

/* Very small phones */
@media (max-width: 360px) {
h1.ui.header.chatbot-title {
margin-top: 3rem; /* extra breathing room */
}
}

Expand Down Expand Up @@ -222,14 +245,18 @@ h1.ui.header {
bottom: 0;
z-index: 5;

margin-top: 1.5rem;
background-color: #d3ead4;
padding: 1rem;
margin-top: 1rem;
background-color: #daebdb;
// background: transparent;
border: 1px solid rgb(190, 214, 232);
padding: 0.75rem;
border-radius: 12px;
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.chat-input .ui.input input {
height: 40px;
line-height: 40px;
border-radius: 10px !important;
}

Expand Down Expand Up @@ -275,6 +302,104 @@ h1.ui.header {
animation-delay: 0.4s;
}

/* =========================
Page layout overrides
========================= */

.chatbot-layout {
min-height: 100vh;
}

@media (max-width: 768px) {
.chatbot-layout {
min-height: auto;
padding-top: 2rem;
}
}

@media (max-width: 768px) {
.chatbot-layout.ui.grid {
align-items: flex-start !important;
}
}

/* =========================
Scroll to bottom button
========================= */

.scroll-to-bottom {
position: absolute;
bottom: 160px;
left: 50%;
transform: translateX(-50%);
z-index: 10;
width: 34px;
height: 34px;
border-radius: 50%;
border: none;
background: rgb(47, 128, 189);
color: #c5f0c9;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
border: #1976d2;
opacity: 1;
backdrop-filter: none;
transition: transform 0.2s ease;
animation: fadeIn 0.15s ease-out;
}

.scroll-to-bottom:hover {
opacity: 1;
transform: translateX(-50%) translateY(-2px);
}
.scroll-icon {
margin: 0 !important;
display: flex !important;
align-items: center;
justify-content: center;
}

@media (max-width: 768px) {
.scroll-to-bottom {
bottom: 160px;
}
}
.chat-surface {
display: flex;
flex-direction: column;
height: 100%;

background: #fcfcfa; // same palette as input
backdrop-filter: blur(6px);

border-radius: 18px;
border: 1px solid rgba(0, 0, 0, 0.05);

box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.4);

padding: 1.25rem;
}
.chat-landing-state {
text-align: center;
margin: auto;
padding: 3rem 1rem;

h2 {
font-size: 1.6rem;
font-weight: 600;
margin-bottom: 0.5rem;
}

p {
font-size: 0.95rem;
color: #555;
max-width: 480px;
margin: 0 auto;
}
}
/* =========================
Animations
========================= */
Expand Down Expand Up @@ -302,24 +427,13 @@ h1.ui.header {
transform: translateY(0);
}
}

/* =========================
Page layout overrides
========================= */

.chatbot-layout {
min-height: 100vh;
}

@media (max-width: 768px) {
.chatbot-layout {
min-height: auto;
padding-top: 2rem;
@keyframes fadeIn {
from {
opacity: 0;
transform: translateX(-50%) translateY(6px);
}
}

@media (max-width: 768px) {
.chatbot-layout.ui.grid {
align-items: flex-start !important;
to {
opacity: 0.85;
transform: translateX(-50%) translateY(0);
}
}
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