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/* ======================================================================
Agent Bridge -- Light Theme Design System
Matching Google Antigravity reference: light canvas, dot-grid,
centered card, numbered tool rail, suggestion chips.
Font: DM Sans. No emojis.
====================================================================== */
*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg: #f8f9fa;
--bg-card: #ffffff;
--bg-hover: #f1f3f4;
--bg-input: #ffffff;
--bg-chip: #ffffff;
--bg-output: #f8f9fa;
--border: #dadce0;
--border-light: #e8eaed;
--border-focus: #4d90fe;
--text: #202124;
--text-secondary: #5f6368;
--text-muted: #9aa0a6;
--text-link: #1a73e8;
--accent: #1a73e8;
--accent-light: #e8f0fe;
--accent-surface: rgba(26, 115, 232, 0.08);
--success: #34a853;
--error: #ea4335;
--warning: #fbbc04;
--font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
--font-mono: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
--radius-sm: 6px;
--radius-md: 12px;
--radius-lg: 24px;
--radius-pill: 100px;
--shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
--shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
--shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
--shadow-card: 0 1px 6px rgba(0, 0, 0, 0.06), 0 2px 32px rgba(0, 0, 0, 0.04);
--grid-color: #e0e0e0;
--grid-size: 40px;
}
html,
body {
height: 100%;
font-family: var(--font);
font-size: 14px;
color: var(--text);
background: var(--bg);
-webkit-font-smoothing: antialiased;
overflow: hidden;
}
::selection {
background: var(--accent-light);
color: var(--accent);
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 3px;
}
/* --- Layout ---------------------------------------------------------- */
#app {
display: flex;
height: 100vh;
width: 100vw;
}
/* --- Dot Grid Background --------------------------------------------- */
#canvas {
flex: 1;
position: relative;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
background-color: var(--bg);
background-image: radial-gradient(circle, var(--grid-color) 1px, transparent 1px);
background-size: var(--grid-size) var(--grid-size);
overflow: hidden;
}
/* --- Status Bar ------------------------------------------------------ */
#status-bar {
position: absolute;
top: 16px;
right: 20px;
display: flex;
align-items: center;
gap: 6px;
font-size: 11px;
color: var(--text-muted);
z-index: 10;
}
#connection-indicator {
width: 7px;
height: 7px;
border-radius: 50%;
background: var(--error);
transition: background 0.3s;
}
#connection-indicator.connected {
background: var(--success);
}
#status-text {
font-weight: 500;
}
/* --- Tool Rail (Left Numbered Buttons) ------------------------------- */
#tool-rail {
display: flex;
flex-direction: column;
gap: 8px;
padding: 16px 10px;
z-index: 10;
background: transparent;
}
.rail-btn {
display: flex;
align-items: center;
justify-content: center;
width: 38px;
height: 38px;
border: 1.5px solid var(--border);
border-radius: var(--radius-md);
background: var(--bg-card);
color: var(--text-secondary);
font-family: var(--font);
font-size: 13px;
font-weight: 600;
cursor: pointer;
transition: all 0.15s ease;
box-shadow: var(--shadow);
position: relative;
}
.rail-btn:hover {
border-color: var(--accent);
color: var(--accent);
box-shadow: var(--shadow-md);
transform: translateY(-1px);
}
.rail-btn:active {
transform: scale(0.95);
}
.rail-btn.active {
border-color: var(--accent);
background: var(--accent-light);
color: var(--accent);
}
.rail-btn[title]::after {
content: attr(title);
position: absolute;
left: calc(100% + 8px);
top: 50%;
transform: translateY(-50%);
background: var(--text);
color: #fff;
font-size: 11px;
font-weight: 500;
padding: 4px 10px;
border-radius: var(--radius-sm);
white-space: nowrap;
opacity: 0;
pointer-events: none;
transition: opacity 0.15s;
}
.rail-btn:hover[title]::after {
opacity: 1;
}
/* --- Center Card ----------------------------------------------------- */
#center-card {
position: relative;
width: 100%;
max-width: 600px;
background: var(--bg-card);
border: 1px solid var(--border-light);
border-radius: 20px;
padding: 36px 40px 28px;
box-shadow: var(--shadow-card);
animation: cardIn 0.3s ease-out;
z-index: 5;
}
@keyframes cardIn {
from {
opacity: 0;
transform: translateY(12px) scale(0.98);
}
to {
opacity: 1;
transform: translateY(0) scale(1);
}
}
#card-close {
position: absolute;
top: 14px;
right: 18px;
background: none;
border: none;
font-size: 20px;
color: var(--text-muted);
cursor: pointer;
line-height: 1;
padding: 4px;
transition: color 0.15s;
}
#card-close:hover {
color: var(--text);
}
#greeting {
font-size: 22px;
font-weight: 600;
color: var(--text);
margin-bottom: 20px;
letter-spacing: -0.4px;
text-align: center;
}
/* --- Prompt Input ---------------------------------------------------- */
#prompt-container {
display: flex;
align-items: center;
gap: 8px;
background: var(--bg-input);
border: 1.5px solid var(--border);
border-radius: var(--radius-pill);
padding: 4px 6px 4px 18px;
transition: border-color 0.15s, box-shadow 0.15s;
}
#prompt-container:focus-within {
border-color: var(--border-focus);
box-shadow: 0 0 0 3px var(--accent-surface);
}
#prompt-input,
#conv-input {
flex: 1;
border: none;
outline: none;
background: transparent;
font-family: var(--font);
font-size: 14px;
color: var(--text);
padding: 10px 0;
}
#prompt-input::placeholder,
#conv-input::placeholder {
color: var(--text-muted);
}
#send-btn,
#conv-send-btn {
display: flex;
align-items: center;
justify-content: center;
width: 34px;
height: 34px;
border: none;
border-radius: 50%;
background: var(--accent);
color: #fff;
cursor: pointer;
transition: all 0.15s;
flex-shrink: 0;
}
#send-btn:hover,
#conv-send-btn:hover {
background: #1557b0;
transform: scale(1.05);
}
/* --- Icon Bar -------------------------------------------------------- */
#icon-bar {
display: flex;
align-items: center;
gap: 4px;
margin-top: 12px;
padding: 0 4px;
}
.icon-btn {
display: flex;
align-items: center;
justify-content: center;
width: 30px;
height: 30px;
border: none;
border-radius: var(--radius-sm);
background: transparent;
color: var(--text-muted);
cursor: pointer;
transition: all 0.12s;
}
.icon-btn:hover {
background: var(--bg-hover);
color: var(--text-secondary);
}
/* --- Suggestion Chips ------------------------------------------------ */
#suggestion-chips {
display: flex;
flex-wrap: wrap;
justify-content: center;
gap: 8px;
margin-top: 16px;
}
.chip {
display: inline-flex;
align-items: center;
padding: 8px 18px;
font-family: var(--font);
font-size: 13px;
font-weight: 500;
color: var(--text);
background: var(--bg-chip);
border: 1px solid var(--border);
border-radius: var(--radius-pill);
cursor: pointer;
transition: all 0.15s;
user-select: none;
}
.chip:hover {
border-color: var(--text-muted);
box-shadow: var(--shadow);
transform: translateY(-1px);
}
.chip:active {
transform: scale(0.97);
}
/* --- Bottom Links ---------------------------------------------------- */
#bottom-links {
display: flex;
justify-content: center;
gap: 20px;
margin-top: 20px;
}
.bottom-link {
display: inline-flex;
align-items: center;
gap: 6px;
font-size: 13px;
font-weight: 500;
color: var(--text-secondary);
text-decoration: none;
transition: color 0.15s;
}
.bottom-link:hover {
color: var(--accent);
}
/* --- Conversation View ----------------------------------------------- */
#conversation {
display: flex;
flex-direction: column;
width: 100%;
max-width: 780px;
height: 100%;
padding: 60px 20px 0;
}
#conversation.hidden {
display: none;
}
#messages {
flex: 1;
overflow-y: auto;
padding: 20px 0;
display: flex;
flex-direction: column;
gap: 14px;
}
.msg {
max-width: 85%;
padding: 12px 16px;
border-radius: 18px;
font-size: 14px;
line-height: 1.55;
animation: msgIn 0.2s ease-out;
}
@keyframes msgIn {
from {
opacity: 0;
transform: translateY(4px);
}
to {
opacity: 1;
transform: translateY(0);
}
}
.msg-label {
font-size: 10px;
font-weight: 600;
text-transform: uppercase;
letter-spacing: 0.5px;
margin-bottom: 4px;
}
.msg-body {
word-wrap: break-word;
white-space: pre-wrap;
}
.msg-user {
align-self: flex-end;
background: var(--accent);
color: #fff;
border-bottom-right-radius: 4px;
}
.msg-user .msg-label {
color: rgba(255, 255, 255, 0.6);
}
.msg-agent {
align-self: flex-start;
background: var(--bg-card);
border: 1px solid var(--border-light);
border-bottom-left-radius: 4px;
}
.msg-agent .msg-label {
color: var(--text-muted);
}
.msg-system {
align-self: center;
text-align: center;
font-size: 12px;
color: var(--text-muted);
padding: 6px 14px;
background: var(--accent-light);
border-radius: var(--radius-pill);
}
.msg-tool {
align-self: flex-start;
background: var(--accent-light);
border: 1px solid rgba(26, 115, 232, 0.15);
border-bottom-left-radius: 4px;
}
.msg-tool .msg-label {
color: var(--accent);
}
.msg-error {
align-self: flex-start;
background: #fce8e6;
border: 1px solid rgba(234, 67, 53, 0.15);
}
.msg-error .msg-label {
color: var(--error);
}
/* --- Conversation Input ---------------------------------------------- */
#conv-input-bar {
display: flex;
align-items: center;
gap: 8px;
padding: 12px 0 20px;
border-top: 1px solid var(--border-light);
background: transparent;
}
#conv-input {
flex: 1;
padding: 12px 18px;
border: 1.5px solid var(--border);
border-radius: var(--radius-pill);
font-family: var(--font);
font-size: 14px;
transition: border-color 0.15s, box-shadow 0.15s;
}
#conv-input:focus {
border-color: var(--border-focus);
box-shadow: 0 0 0 3px var(--accent-surface);
outline: none;
}
/* --- Output Area ----------------------------------------------------- */
#output-area {
background: var(--bg-card);
border: 1px solid var(--border-light);
border-radius: var(--radius-md);
margin-bottom: 10px;
max-height: 300px;
overflow: hidden;
display: flex;
flex-direction: column;
box-shadow: var(--shadow);
}
#output-area.hidden {
display: none;
}
#output-header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 8px 14px;
border-bottom: 1px solid var(--border-light);
font-size: 12px;
font-weight: 600;
color: var(--text-secondary);
}
#close-output {
background: none;
border: none;
font-size: 16px;
color: var(--text-muted);
cursor: pointer;
}
#output-content {
flex: 1;
overflow-y: auto;
padding: 10px 14px;
font-family: var(--font-mono);
font-size: 12px;
line-height: 1.6;
color: var(--text-secondary);
white-space: pre-wrap;
}
.progress-line {
color: var(--text-muted);
padding: 1px 0;
}
.progress-line::before {
content: '> ';
color: var(--accent);
}
.transcript-preview {
max-height: 200px;
overflow-y: auto;
padding: 8px;
background: var(--bg-output);
border-radius: var(--radius-sm);
margin-top: 6px;
border: 1px solid var(--border-light);
}
.download-link {
display: inline-flex;
align-items: center;
gap: 6px;
margin-top: 8px;
padding: 6px 14px;
font-family: var(--font);
font-size: 12px;
font-weight: 600;
color: #fff;
background: var(--accent);
border: none;
border-radius: var(--radius-sm);
cursor: pointer;
text-decoration: none;
transition: background 0.15s;
}
.download-link:hover {
background: #1557b0;
}
/* --- Spinner --------------------------------------------------------- */
.spinner {
display: inline-block;
width: 12px;
height: 12px;
border: 2px solid var(--border);
border-top-color: var(--accent);
border-radius: 50%;
animation: spin 0.6s linear infinite;
margin-right: 4px;
vertical-align: middle;
}
@keyframes spin {
to {
transform: rotate(360deg);
}
}
/* --- Settings Panel -------------------------------------------------- */
.settings-btn {
display: flex;
align-items: center;
justify-content: center;
width: 30px;
height: 30px;
border: none;
border-radius: var(--radius-sm);
background: transparent;
color: var(--text-muted);
cursor: pointer;
transition: all 0.12s;
margin-left: 4px;
}
.settings-btn:hover {
background: var(--bg-hover);
color: var(--text-secondary);
}
#settings-panel {
position: absolute;
inset: 0;
z-index: 50;
display: flex;
align-items: center;
justify-content: center;
background: rgba(0, 0, 0, 0.15);
backdrop-filter: blur(2px);
animation: fadeIn 0.15s ease-out;
}
#settings-panel.hidden {
display: none;
}
@keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
.settings-card {
width: 100%;
max-width: 480px;
background: var(--bg-card);
border: 1px solid var(--border-light);
border-radius: 16px;
box-shadow: var(--shadow-lg);
overflow: hidden;
}
.settings-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 16px 20px;
border-bottom: 1px solid var(--border-light);
}
.settings-header h2 {
font-size: 15px;
font-weight: 600;
}
.settings-header button {
background: none;
border: none;
font-size: 20px;
color: var(--text-muted);
cursor: pointer;
}
.settings-header button:hover {
color: var(--text);
}
.settings-body {
padding: 20px;
}
.settings-label {
display: block;
font-size: 12px;
font-weight: 600;
color: var(--text-secondary);
margin-bottom: 6px;
}
.settings-input-row {
display: flex;
gap: 8px;
}
.settings-input-row input {
flex: 1;
padding: 9px 14px;
border: 1.5px solid var(--border);
border-radius: var(--radius-sm);
font-family: var(--font-mono);
font-size: 12px;
color: var(--text);
background: var(--bg);
outline: none;
transition: border-color 0.15s;
}
.settings-input-row input:focus {
border-color: var(--accent);
}
.settings-hint {
font-size: 11px;
color: var(--text-muted);
margin-top: 4px;
}
.settings-divider {
height: 1px;
background: var(--border-light);
margin: 16px 0;
}
.detection-box {
display: flex;
align-items: center;
gap: 8px;
padding: 10px 14px;
background: var(--bg);
border: 1px solid var(--border-light);
border-radius: var(--radius-sm);
font-size: 13px;
}
.detect-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--text-muted);
flex-shrink: 0;
}
.detect-dot.found {
background: var(--success);
}
.detect-dot.missing {
background: var(--error);
}
.detect-details {
font-family: var(--font-mono);
font-size: 11px;
color: var(--text-muted);
margin-top: 6px;
line-height: 1.5;
}
.settings-actions {
display: flex;
gap: 8px;
margin-top: 4px;
}
.btn-primary {
padding: 8px 18px;
font-family: var(--font);
font-size: 13px;
font-weight: 600;
color: #fff;
background: var(--accent);
border: none;
border-radius: var(--radius-sm);
cursor: pointer;
transition: background 0.15s;
}
.btn-primary:hover {
background: #1557b0;
}
.btn-primary:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.btn-outline {
padding: 8px 18px;
font-family: var(--font);
font-size: 13px;
font-weight: 500;
color: var(--text-secondary);
background: var(--bg-card);
border: 1px solid var(--border);
border-radius: var(--radius-sm);
cursor: pointer;
transition: all 0.15s;
}
.btn-outline:hover {
border-color: var(--text-muted);
}
.btn-outline:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.btn-danger {
color: var(--error);
border-color: rgba(234, 67, 53, 0.3);
}
.btn-danger:hover {
border-color: var(--error);
background: #fce8e6;
}
/* --- Responsive ------------------------------------------------------ */
@media (max-width: 640px) {
#center-card {
margin: 0 12px;
padding: 28px 20px 22px;
}
#greeting {
font-size: 18px;
}
#tool-rail {
padding: 12px 6px;
}
.rail-btn {
width: 32px;
height: 32px;
font-size: 11px;
}
}