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🎨 style(app): dramatic visual atmosphere layer — depth, gradients, elevated panels
App-level CSS overrides for production-grade look: - Sidebar: gradient background with depth border - Message area: subtle gradient background - Prompt dock: elevated floating shadow with 16px radius - Code/bash blocks: terminal-grade 10px radius + inset shadow - File write/edit tools: card-style border treatment - User messages: chat bubble with 18px radius + interactive color - Titlebar: subtle bottom border + shadow - Dialogs: premium multi-layer shadow + 12px radius - Popovers/menus: elevated shadow treatment - Numbered lists: custom counter with blue numbers + font-weight 600 - Thinking state: contained in bordered pill - Collapsible triggers: hover background feedback - Permission prompts: warning border + shadow elevation - Scrollbar: thin 6px styled scrollbar on message area - Empty state: subtle radial gradient atmosphere
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‎packages/app/src/index.css‎

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@import "@opencode-ai/ui/styles/tailwind";
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/* ================================================================
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OpenCode App — Visual Atmosphere Layer
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Dramatic overrides for production-grade look & feel
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================================================================ */
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/* --- Sidebar: Distinct visual zone with subtle depth --- */
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[data-component="layout-sidebar"],
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[data-slot="layout-sidebar"] {
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background: linear-gradient(
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180deg,
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var(--background-strong) 0%,
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var(--background-base) 100%
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) !important;
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border-right: 1px solid var(--border-weaker-base) !important;
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box-shadow: inset -1px 0 0 0 var(--border-weaker-base);
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}
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/* --- Session panel: Subtle gradient background for depth --- */
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[data-component="session-turn"] [data-slot="session-turn-content"] {
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background: linear-gradient(
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180deg,
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var(--background-stronger) 0%,
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color-mix(in srgb, var(--background-stronger) 97%, var(--background-base)) 100%
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);
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}
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/* --- Prompt dock: Floating elevated look --- */
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[data-dock-surface="shell"] {
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box-shadow:
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0 0 0 1px var(--border-weaker-base),
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0 -8px 32px -8px hsl(0 0% 0% / 0.12),
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0 -2px 8px -2px hsl(0 0% 0% / 0.06) !important;
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border-radius: 16px !important;
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}
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/* --- Code blocks: Terminal-grade visual treatment --- */
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[data-component="markdown"] .shiki,
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[data-component="markdown"] pre {
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border-radius: 10px !important;
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border: 1px solid var(--border-weaker-base) !important;
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box-shadow:
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inset 0 1px 4px 0 hsl(0 0% 0% / 0.06),
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0 1px 2px 0 hsl(0 0% 0% / 0.04) !important;
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}
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/* --- File write/edit collapsibles: Card-style treatment --- */
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[data-component="edit-tool"] > [data-component="collapsible"],
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[data-component="write-tool"] > [data-component="collapsible"],
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[data-component="apply-patch-tool"] > [data-component="collapsible"] {
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border: 1px solid var(--border-weaker-base);
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border-radius: 10px;
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overflow: hidden;
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background: var(--surface-inset-base);
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}
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/* --- Bash output blocks: Better visual distinction --- */
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[data-component="bash-output"] {
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border-radius: 10px !important;
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border: 1px solid var(--border-weaker-base) !important;
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background: var(--surface-inset-base) !important;
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box-shadow: inset 0 1px 3px 0 hsl(0 0% 0% / 0.04) !important;
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}
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/* --- User messages: Distinct chat bubble feel --- */
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[data-component="user-message"] [data-slot="user-message-text"] {
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border-radius: 18px 18px 4px 18px !important;
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padding: 10px 16px !important;
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background: var(--surface-interactive-weak) !important;
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border: 1px solid color-mix(in srgb, var(--border-interactive-base) 40%, transparent) !important;
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box-shadow: 0 1px 3px 0 hsl(0 0% 0% / 0.04) !important;
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}
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/* --- Titlebar: Subtle bottom border glow --- */
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[data-component="session-header"],
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[data-component="titlebar"] {
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border-bottom: 1px solid var(--border-weaker-base);
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box-shadow: 0 1px 3px 0 hsl(0 0% 0% / 0.03);
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}
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/* --- Dialog content: Premium elevated panel --- */
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[data-component="dialog"] [data-slot="dialog-content"] {
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box-shadow:
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0 0 0 1px var(--border-weaker-base),
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0 24px 64px -16px hsl(0 0% 0% / 0.2),
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0 8px 24px -8px hsl(0 0% 0% / 0.12),
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0 2px 6px 0 hsl(0 0% 0% / 0.08) !important;
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border-radius: 12px !important;
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}
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/* --- Popover/dropdown menus: Elevated with depth --- */
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[data-component="popover-content"],
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[data-component="dropdown-menu"],
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[data-component="context-menu"] {
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box-shadow:
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0 0 0 1px var(--border-weaker-base),
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0 16px 48px -8px hsl(0 0% 0% / 0.15),
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0 4px 12px -4px hsl(0 0% 0% / 0.1) !important;
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border-radius: 10px !important;
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}
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/* --- Settings dialog: Refined panel borders --- */
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.settings-dialog {
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border-radius: 12px;
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overflow: hidden;
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}
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/* --- Tabs: Active tab indicator bar --- */
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[data-component="tabs"][data-variant="alt"] [data-slot="tabs-trigger-wrapper"]:has([data-selected]) {
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border-bottom-color: var(--icon-interactive-base) !important;
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border-bottom-width: 2px !important;
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}
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/* --- Numbered lists in markdown: More visual weight --- */
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[data-component="markdown"] ol {
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counter-reset: list-counter;
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padding-left: 0;
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list-style: none;
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}
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[data-component="markdown"] ol > li {
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counter-increment: list-counter;
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padding-left: 2em;
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position: relative;
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}
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[data-component="markdown"] ol > li::before {
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content: counter(list-counter) ".";
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position: absolute;
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left: 0;
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color: var(--text-interactive-base);
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font-weight: 600;
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font-variant-numeric: tabular-nums;
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}
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/* --- Thinking/loading states: Subtle pulse glow --- */
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[data-slot="session-turn-thinking"] {
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padding: 8px 12px;
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border-radius: 8px;
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background: var(--surface-base);
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border: 1px solid var(--border-weaker-base);
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}
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/* --- Tool collapsible triggers: Better hover feedback --- */
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[data-component="collapsible"] > [data-slot="collapsible-trigger"] {
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transition: background-color 150ms ease;
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border-radius: 6px;
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padding: 4px 8px;
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margin: -4px -8px;
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}
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[data-component="collapsible"] > [data-slot="collapsible-trigger"]:hover {
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background: var(--surface-base-hover);
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}
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/* --- Permission prompts: More prominent visual treatment --- */
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[data-component="tool-part-wrapper"][data-permission="true"] {
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border-radius: 12px !important;
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box-shadow:
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0 0 0 1px var(--border-warning-base),
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0 4px 16px -4px hsl(0 0% 0% / 0.08) !important;
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}
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/* --- Scrollbar track on message area: Thinner, subtler --- */
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[data-slot="session-turn-content"] {
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scrollbar-width: thin;
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scrollbar-color: color-mix(in srgb, var(--text-weaker) 30%, transparent) transparent;
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}
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[data-slot="session-turn-content"]::-webkit-scrollbar {
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width: 6px;
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}
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[data-slot="session-turn-content"]::-webkit-scrollbar-track {
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background: transparent;
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}
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[data-slot="session-turn-content"]::-webkit-scrollbar-thumb {
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background: color-mix(in srgb, var(--text-weaker) 30%, transparent);
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border-radius: 3px;
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}
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[data-slot="session-turn-content"]::-webkit-scrollbar-thumb:hover {
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background: color-mix(in srgb, var(--text-weaker) 50%, transparent);
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}
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/* --- Empty state backgrounds: Subtle radial gradient --- */
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[data-component="session-turn"] .size-full:has(> .text-20-medium) {
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background: radial-gradient(
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ellipse 60% 40% at 50% 60%,
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color-mix(in srgb, var(--surface-interactive-base) 6%, transparent),
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transparent
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);
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}

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