DocuChat / frontend /src /App.css
Prateet Mishra
Fix Railway deployment: add built frontend/dist, fix railway.toml
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/* ===== Color Tokens ===== */
:root {
--bg: #f0eef6;
--surface: #ffffff;
--surface-hover: #f5f3fb;
--border: #ddd8ee;
--border-light: #eae6f5;
--text: #1a1a2e;
--text-secondary: #6e6b85;
--text-tertiary: #9896b0;
--accent: #7c5cfc;
--accent-light: #ece7ff;
--accent-lighter: #f5f2ff;
--accent-dark: #6344e0;
--danger: #e04d6b;
--shadow-sm: 0 1px 4px rgba(26, 26, 46, 0.06);
--shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
--radius-sm: 8px;
--radius-md: 12px;
--radius-lg: 16px;
--radius-xl: 20px;
--radius-full: 24px;
--transition: all 0.2s ease;
/* Dark sidebar tokens */
--sidebar-bg: #1a1a2e;
--sidebar-surface: #232342;
--sidebar-border: #2d2b50;
--sidebar-text: #ffffff;
--sidebar-text-secondary: #9896b0;
--sidebar-hover: #2a2a4a;
}
/* ===== App Shell ===== */
.app {
display: flex;
flex-direction: column;
height: 100vh;
background: var(--bg);
}
.app-header {
display: flex;
align-items: baseline;
gap: 12px;
padding: 16px 28px;
border-bottom: 1px solid var(--sidebar-border);
background: var(--sidebar-bg);
}
.app-header__logo {
font-size: 20px;
font-weight: 700;
color: #ffffff;
letter-spacing: -0.02em;
}
.app-header__tagline {
font-size: 13px;
color: var(--sidebar-text-secondary);
}
.app-main {
display: flex;
flex: 1;
overflow: hidden;
}
/* Loading */
.app-loading {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
gap: 16px;
color: var(--text-secondary);
background: var(--sidebar-bg);
}
.app-loading__spinner {
width: 32px;
height: 32px;
border: 3px solid var(--border);
border-top-color: var(--accent);
border-radius: 50%;
animation: spin 0.8s linear infinite;
}
/* ===== Upload Panel (Left Sidebar) ===== */
.upload-panel {
width: 340px;
min-width: 340px;
display: flex;
flex-direction: column;
gap: 20px;
padding: 24px;
border-right: 1px solid var(--sidebar-border);
background: var(--sidebar-bg);
overflow-y: auto;
}
.upload-panel__header {
display: flex;
align-items: center;
justify-content: space-between;
}
.upload-panel__title {
font-size: 16px;
font-weight: 600;
color: var(--sidebar-text);
}
.upload-panel__badge {
font-size: 12px;
font-weight: 500;
color: var(--accent);
background: rgba(124, 92, 252, 0.15);
padding: 2px 10px;
border-radius: var(--radius-full);
}
.upload-panel__hint {
padding: 16px;
text-align: center;
color: var(--sidebar-text-secondary);
font-size: 13px;
line-height: 1.6;
}
/* ===== Upload Zone ===== */
.upload-zone {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 8px;
padding: 32px 20px;
border: 2px dashed var(--sidebar-border);
border-radius: var(--radius-lg);
cursor: pointer;
transition: var(--transition);
background: var(--sidebar-surface);
}
.upload-zone:hover {
border-color: var(--accent);
background: rgba(124, 92, 252, 0.08);
}
.upload-zone--dragging {
border-color: var(--accent);
border-style: solid;
background: rgba(124, 92, 252, 0.12);
transform: scale(1.01);
}
.upload-zone--disabled {
opacity: 0.5;
pointer-events: none;
}
.upload-zone__icon {
color: var(--accent);
opacity: 0.7;
}
.upload-zone--dragging .upload-zone__icon {
opacity: 1;
transform: translateY(-2px);
transition: var(--transition);
}
.upload-zone__text {
font-size: 14px;
font-weight: 500;
color: var(--sidebar-text);
}
.upload-zone__subtext {
font-size: 13px;
color: var(--sidebar-text-secondary);
}
.upload-zone__browse {
color: var(--accent);
font-weight: 500;
text-decoration: underline;
text-underline-offset: 2px;
}
.upload-zone__formats {
font-size: 11px;
color: var(--sidebar-text-secondary);
margin-top: 4px;
}
/* ===== File List ===== */
.file-list {
display: flex;
flex-direction: column;
gap: 8px;
}
.file-list__title {
font-size: 12px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.05em;
color: var(--sidebar-text-secondary);
margin-bottom: 4px;
}
.file-list__items {
display: flex;
flex-direction: column;
gap: 6px;
}
.file-item {
display: grid;
grid-template-columns: auto 1fr auto;
align-items: center;
gap: 10px;
padding: 10px 12px;
background: var(--sidebar-surface);
border-radius: var(--radius-md);
position: relative;
overflow: hidden;
transition: var(--transition);
}
.file-item--done {
background: rgba(124, 92, 252, 0.1);
}
.file-item--error {
background: rgba(224, 77, 107, 0.1);
}
.file-item__icon {
color: var(--sidebar-text-secondary);
display: flex;
}
.file-item--done .file-item__icon {
color: var(--accent);
}
.file-item__info {
display: flex;
flex-direction: column;
min-width: 0;
}
.file-item__name {
font-size: 13px;
font-weight: 500;
color: var(--sidebar-text);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.file-item__meta {
font-size: 11px;
color: var(--sidebar-text-secondary);
}
.file-item__status {
display: flex;
align-items: center;
gap: 4px;
}
.file-item__check {
color: var(--accent);
}
.file-item__error-icon {
color: var(--danger);
}
.file-item__progress-ring {
display: flex;
align-items: center;
gap: 4px;
}
.file-item__percent {
font-size: 11px;
color: var(--sidebar-text-secondary);
}
.file-item__progress-bar {
grid-column: 1 / -1;
height: 3px;
background: var(--sidebar-border);
border-radius: 2px;
overflow: hidden;
}
.file-item__progress-fill {
height: 100%;
background: var(--accent);
border-radius: 2px;
transition: width 0.3s ease;
}
.file-item__error {
grid-column: 1 / -1;
font-size: 12px;
color: var(--danger);
}
/* ===== Chat Panel (Right) ===== */
.chat-panel {
flex: 1;
display: flex;
flex-direction: column;
overflow: hidden;
background: var(--bg);
}
.chat-panel__header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 16px 28px;
border-bottom: 1px solid var(--border);
background: var(--surface);
}
.chat-panel__title {
font-size: 16px;
font-weight: 600;
color: var(--text);
}
.chat-panel__clear {
display: flex;
align-items: center;
gap: 6px;
padding: 6px 12px;
font-size: 13px;
font-weight: 500;
color: var(--text-secondary);
background: none;
border: 1px solid var(--border);
border-radius: var(--radius-sm);
cursor: pointer;
transition: var(--transition);
}
.chat-panel__clear:hover {
color: var(--danger);
border-color: var(--danger);
background: rgba(224, 77, 107, 0.06);
}
.chat-panel__messages {
flex: 1;
overflow-y: auto;
padding: 24px 28px;
display: flex;
flex-direction: column;
gap: 20px;
}
/* Empty state */
.chat-panel__empty {
flex: 1;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 12px;
color: var(--text-tertiary);
text-align: center;
padding: 40px;
}
.chat-panel__empty h3 {
font-size: 18px;
font-weight: 600;
color: var(--text-secondary);
}
.chat-panel__empty p {
font-size: 14px;
max-width: 400px;
line-height: 1.6;
}
/* ===== Chat Messages ===== */
.chat-message {
display: flex;
gap: 12px;
max-width: 780px;
}
.chat-message--user {
align-self: flex-end;
flex-direction: row-reverse;
}
.chat-message--assistant {
align-self: flex-start;
}
.chat-message__avatar {
width: 32px;
height: 32px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
.chat-message--user .chat-message__avatar {
background: var(--accent-light);
color: var(--accent);
}
.chat-message--assistant .chat-message__avatar {
background: var(--border-light);
color: var(--text-secondary);
}
.chat-message__body {
display: flex;
flex-direction: column;
gap: 8px;
min-width: 0;
max-width: 640px;
}
.chat-message__bubble {
padding: 12px 16px;
border-radius: var(--radius-xl);
font-size: 14px;
line-height: 1.65;
word-wrap: break-word;
}
.chat-message--user .chat-message__bubble {
background: var(--accent-light);
color: var(--text);
border-bottom-right-radius: var(--radius-sm);
}
.chat-message--assistant .chat-message__bubble {
background: var(--surface);
color: var(--text);
border-bottom-left-radius: var(--radius-sm);
border: 1px solid var(--border);
box-shadow: var(--shadow-sm);
}
/* Markdown inside assistant bubbles */
.chat-message--assistant .chat-message__bubble p {
margin-bottom: 8px;
}
.chat-message--assistant .chat-message__bubble p:last-child {
margin-bottom: 0;
}
.chat-message--assistant .chat-message__bubble code {
font-size: 13px;
background: var(--bg);
padding: 2px 6px;
border-radius: 4px;
font-family: 'SF Mono', 'Fira Code', monospace;
}
.chat-message--assistant .chat-message__bubble pre {
background: #1a1a2e;
color: #d4d0f0;
padding: 12px 16px;
border-radius: var(--radius-sm);
overflow-x: auto;
margin: 8px 0;
}
.chat-message--assistant .chat-message__bubble pre code {
background: none;
padding: 0;
color: inherit;
}
.chat-message--assistant .chat-message__bubble ul,
.chat-message--assistant .chat-message__bubble ol {
padding-left: 20px;
margin: 8px 0;
}
.chat-message--assistant .chat-message__bubble li {
margin-bottom: 4px;
}
.chat-message--assistant .chat-message__bubble strong {
font-weight: 600;
}
/* Typing indicator */
.typing-indicator {
display: flex;
gap: 4px;
padding: 4px 0;
}
.typing-indicator span {
width: 6px;
height: 6px;
border-radius: 50%;
background: var(--text-tertiary);
animation: bounce 1.2s ease-in-out infinite;
}
.typing-indicator span:nth-child(2) {
animation-delay: 0.1s;
}
.typing-indicator span:nth-child(3) {
animation-delay: 0.2s;
}
@keyframes bounce {
0%, 60%, 100% { transform: translateY(0); }
30% { transform: translateY(-6px); }
}
/* ===== Chat Input ===== */
.chat-input {
padding: 16px 28px 20px;
background: var(--surface);
border-top: 1px solid var(--border);
}
.chat-input__wrapper {
display: flex;
align-items: flex-end;
gap: 8px;
padding: 10px 14px;
background: var(--bg);
border: 1px solid var(--border);
border-radius: var(--radius-full);
transition: var(--transition);
}
.chat-input__wrapper:focus-within {
border-color: var(--accent);
box-shadow: 0 0 0 3px rgba(124, 92, 252, 0.12);
}
.chat-input__textarea {
flex: 1;
border: none;
outline: none;
background: none;
font-family: inherit;
font-size: 14px;
line-height: 1.5;
color: var(--text);
resize: none;
max-height: 160px;
padding: 2px 0;
}
.chat-input__textarea::placeholder {
color: var(--text-tertiary);
}
.chat-input__textarea:disabled {
opacity: 0.5;
}
.chat-input__send {
width: 34px;
height: 34px;
border: none;
border-radius: 50%;
background: var(--accent);
color: white;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
flex-shrink: 0;
transition: var(--transition);
}
.chat-input__send:hover:not(:disabled) {
background: var(--accent-dark);
transform: scale(1.05);
}
.chat-input__send:disabled {
opacity: 0.4;
cursor: not-allowed;
}
.chat-input__hint {
text-align: center;
font-size: 11px;
color: var(--text-tertiary);
margin-top: 8px;
}
.chat-input__hint kbd {
font-family: inherit;
font-size: 11px;
background: var(--border-light);
padding: 1px 5px;
border-radius: 3px;
border: 1px solid var(--border);
}
/* ===== Message Actions ===== */
.message-actions {
display: flex;
gap: 4px;
opacity: 0;
transition: opacity 0.15s ease;
}
.chat-message:hover .message-actions,
.message-actions:focus-within {
opacity: 1;
}
.message-action {
display: flex;
align-items: center;
gap: 4px;
padding: 4px 10px;
font-size: 12px;
font-weight: 500;
color: var(--text-secondary);
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius-sm);
cursor: pointer;
transition: var(--transition);
}
.message-action:hover {
color: var(--text);
background: var(--surface-hover);
border-color: var(--text-tertiary);
}
/* ===== Source Badges ===== */
.source-badges {
display: flex;
flex-wrap: wrap;
gap: 6px;
}
.source-badge {
display: inline-flex;
align-items: center;
gap: 5px;
padding: 4px 10px;
font-size: 12px;
font-weight: 500;
color: var(--text-secondary);
background: var(--border-light);
border: 1px solid var(--border);
border-radius: var(--radius-md);
cursor: pointer;
transition: var(--transition);
}
.source-badge:hover {
background: var(--accent-lighter);
border-color: var(--accent);
color: var(--accent);
}
.source-badge__page {
color: var(--text-tertiary);
font-size: 11px;
}
/* ===== Why Drawer ===== */
.why-drawer {
border-radius: var(--radius-md);
overflow: hidden;
}
.why-drawer__toggle {
display: flex;
align-items: center;
gap: 6px;
padding: 6px 10px;
font-size: 12px;
font-weight: 500;
color: var(--text-secondary);
background: none;
border: 1px solid var(--border);
border-radius: var(--radius-sm);
cursor: pointer;
transition: var(--transition);
width: fit-content;
}
.why-drawer__toggle:hover {
background: var(--surface-hover);
color: var(--text);
}
.why-drawer__content {
margin-top: 8px;
padding: 16px;
background: var(--surface);
border: 1px solid var(--border);
border-radius: var(--radius-md);
animation: slideDown 0.2s ease;
}
@keyframes slideDown {
from {
opacity: 0;
transform: translateY(-4px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.why-drawer__summary {
font-size: 13px;
color: var(--text-secondary);
margin-bottom: 12px;
}
.why-drawer__chunks {
display: flex;
flex-direction: column;
gap: 10px;
}
.chunk-card {
padding: 12px;
background: var(--bg);
border: 1px solid var(--border);
border-radius: var(--radius-sm);
transition: var(--transition);
}
.chunk-card--focused {
border-color: var(--accent);
background: var(--accent-lighter);
}
.chunk-card__header {
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 8px;
margin-bottom: 8px;
}
.chunk-card__id {
font-size: 11px;
font-weight: 600;
color: var(--text-tertiary);
text-transform: uppercase;
letter-spacing: 0.03em;
}
.chunk-card__source {
font-size: 12px;
font-weight: 500;
color: var(--text-secondary);
}
.chunk-card__relevance {
margin-left: auto;
font-size: 11px;
font-weight: 600;
color: var(--accent);
background: var(--accent-lighter);
padding: 2px 8px;
border-radius: var(--radius-full);
}
.chunk-card__preview {
font-size: 12px;
color: var(--text-secondary);
line-height: 1.6;
white-space: pre-wrap;
word-break: break-word;
}
.highlight {
background: #e0d4ff;
color: var(--text);
padding: 0 2px;
border-radius: 2px;
}
/* ===== Chunk Type Badges ===== */
.chunk-card__type-icon {
vertical-align: -2px;
margin-right: 3px;
}
.chunk-card__type-icon--table {
color: #7c5cfc;
}
.chunk-card__type-icon--figure {
color: #e07c3e;
}
.chunk-card__type-badge {
font-size: 10px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.04em;
padding: 2px 8px;
border-radius: var(--radius-full);
}
.chunk-card__type-badge--table {
background: rgba(124, 92, 252, 0.12);
color: #7c5cfc;
}
.chunk-card__type-badge--figure {
background: rgba(224, 124, 62, 0.12);
color: #e07c3e;
}
/* ===== Multimodal Asset Previews ===== */
.chunk-card__asset-preview {
margin: 8px 0;
border-radius: var(--radius-sm);
overflow: hidden;
border: 1px solid var(--border);
background: var(--surface);
}
.chunk-card__asset-img {
display: block;
width: 100%;
max-height: 240px;
object-fit: contain;
background: #fff;
}
/* ===== Source Badge Variants ===== */
.source-badge--table {
border-color: rgba(124, 92, 252, 0.3);
}
.source-badge--table:hover {
background: rgba(124, 92, 252, 0.1);
border-color: #7c5cfc;
color: #7c5cfc;
}
.source-badge--figure {
border-color: rgba(224, 124, 62, 0.3);
}
.source-badge--figure:hover {
background: rgba(224, 124, 62, 0.1);
border-color: #e07c3e;
color: #e07c3e;
}
/* ===== Why Drawer Stats ===== */
.why-drawer__stat {
display: inline-flex;
align-items: center;
gap: 3px;
margin-left: 8px;
font-size: 12px;
color: var(--text-tertiary);
}
/* ===== Upload Panel Limits ===== */
.upload-panel__limit-msg {
font-size: 12px;
color: var(--danger);
text-align: center;
padding: 6px 0;
}
.upload-panel__limits-info {
font-size: 11px;
color: var(--sidebar-text-secondary);
margin-top: 4px;
opacity: 0.7;
}
/* ===== Spinner Utility ===== */
@keyframes spin {
to { transform: rotate(360deg); }
}
.spin {
animation: spin 1s linear infinite;
}
/* ===== Responsive ===== */
@media (max-width: 768px) {
.app-main {
flex-direction: column;
}
.upload-panel {
width: 100%;
min-width: unset;
max-height: 280px;
border-right: none;
border-bottom: 1px solid var(--sidebar-border);
}
.chat-panel__messages {
padding: 16px;
}
.chat-input {
padding: 12px 16px 16px;
}
.chat-message__body {
max-width: calc(100vw - 80px);
}
}