body {
    overflow: hidden;
}

.app-shell {
    display: grid;
    width: 100%;
    height: 100dvh;
    grid-template-areas:
        "header"
        "actions"
        "notice"
        "terminal"
        "composer"
        "site-footer";
    grid-template-rows: var(--header-height) var(--actions-height) auto minmax(0, 1fr) auto auto;
}

.auth-pending .app-shell {
    visibility: hidden;
}

.app-header {
    display: grid;
    align-items: center;
    grid-area: header;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: var(--space-3);
    padding: max(var(--space-2), env(safe-area-inset-top)) var(--space-4) var(--space-2);
    border-bottom: 1px solid var(--line);
    background: rgb(7 9 10 / 82%);
    backdrop-filter: blur(14px);
}

.brand-lockup {
    display: inline-flex;
    min-width: 0;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    line-height: 1;
    white-space: nowrap;
}

.brand-mark {
    display: block;
    flex: 0 0 auto;
    width: 26px;
    height: auto;
    filter: drop-shadow(0 0 8px rgb(88 227 109 / 15%));
}

.brand-lockup strong {
    flex: 0 0 auto;
    color: var(--green);
    font-size: var(--text-sm);
    letter-spacing: 0.16em;
    text-shadow: 0 0 18px rgb(88 227 109 / 18%);
}

.brand-separator {
    flex: 0 0 auto;
    color: var(--text-dim);
    font-size: var(--text-sm);
}

.brand-context {
    max-width: 22ch;
    overflow: hidden;
    color: var(--text);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.header-button {
    display: inline-flex;
    min-height: var(--control-compact);
    min-width: 0;
    align-items: center;
    justify-content: center;
    justify-self: start;
    gap: var(--space-2);
    padding-inline: var(--space-3);
    border-color: var(--line);
    background: rgb(10 13 12 / 72%);
    color: var(--text-muted);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.header-button:hover:not(:disabled) {
    background: var(--surface-soft);
    color: var(--text);
}

.header-button:active:not(:disabled) {
    transform: translateY(1px);
}

.header-button-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    fill: none;
    stroke: currentcolor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.7;
}

.header-button-label {
    min-width: 0;
}

#historyButton .header-button-icon {
    color: var(--cyan);
}

#historyButton:hover:not(:disabled),
#historyButton[aria-expanded="true"] {
    border-color: color-mix(in srgb, var(--cyan) 58%, var(--line));
}

#historyButton[aria-expanded="true"] {
    background: color-mix(in srgb, var(--cyan) 8%, var(--surface-soft));
    box-shadow: inset 0 -2px 0 color-mix(in srgb, var(--cyan) 72%, transparent);
    color: var(--text);
}

.account-button {
    max-width: 22ch;
}

.account-button .header-button-icon {
    color: var(--green);
}

.account-button:hover:not(:disabled) {
    border-color: color-mix(in srgb, var(--green) 58%, var(--line));
}

.account-button .header-button-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.header-tools {
    display: flex;
    min-width: 0;
    align-items: center;
    justify-self: end;
    gap: var(--space-3);
}

.quick-actions {
    display: grid;
    grid-area: actions;
    grid-template-columns: repeat(4, minmax(84px, 132px));
    justify-content: center;
    padding-inline: var(--space-4);
    border-bottom: 1px solid var(--line);
    background: linear-gradient(180deg, rgb(13 17 16 / 72%), rgb(7 9 10 / 40%));
}

.quick-actions > button,
.quick-actions > details > summary {
    display: inline-flex;
    min-height: 47px;
    align-items: center;
    justify-content: center;
    padding: 0 var(--space-4);
    border: 0;
    border-left: 1px solid var(--line);
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--text-sm);
    list-style: none;
}

.quick-actions > details,
.quick-actions > details > summary {
    width: 100%;
    min-width: 0;
}

.quick-actions > details:last-child > summary {
    border-right: 1px solid var(--line);
}

#newChatButton {
    color: var(--green);
    font-weight: 700;
}

#arenaButton {
    color: var(--cyan);
}

#helpButton {
    color: var(--text);
}

.quick-actions > button:hover,
.quick-actions > details > summary:hover,
.quick-actions > details[open] > summary {
    color: var(--text);
}

.command-menu {
    position: relative;
}

.command-menu summary::-webkit-details-marker {
    display: none;
}

.command-menu-panel {
    position: absolute;
    z-index: 50;
    top: calc(100% - 1px);
    right: 0;
    display: grid;
    width: min(320px, calc(100vw - 24px));
    padding: var(--space-2);
    border: 1px solid var(--line);
    background: var(--surface-raised);
    box-shadow: 0 18px 60px rgb(0 0 0 / 48%);
}

.command-menu-panel button,
.command-menu-panel a {
    display: grid;
    min-height: 56px;
    align-content: center;
    justify-items: start;
    gap: 2px;
    padding: var(--space-2) var(--space-3);
    border: 0;
    background: transparent;
    color: var(--text-muted);
    text-align: left;
    text-decoration: none;
}

.command-menu-panel button:hover:not(:disabled),
.command-menu-panel a:hover {
    background: rgb(255 255 255 / 3%);
    color: var(--text);
}

.command-menu-panel strong {
    color: inherit;
    font-size: var(--text-sm);
}

.command-menu-panel span {
    color: var(--text-dim);
    font-size: var(--text-xs);
}

#terminal {
    grid-area: terminal;
    width: 100%;
    min-height: 0;
    padding: var(--space-5) max(var(--space-5), calc((100vw - var(--content)) / 2));
    overflow-y: auto;
    scroll-padding-block: var(--space-5);
    overscroll-behavior: contain;
    scrollbar-color: var(--line-strong) transparent;
    scrollbar-gutter: stable both-edges;
    scrollbar-width: thin;
}

.terminal-welcome {
    --home-unit: clamp(0.875rem, 0.75rem + 0.2vw, 1rem);
    --home-space-xs: calc(var(--home-unit) * 0.618);
    --home-space-s: var(--home-unit);
    --home-space-m: calc(var(--home-unit) * 1.618);
    --home-space-l: calc(var(--home-unit) * 2.618);
    --home-space-xl: calc(var(--home-unit) * 4.236);
    --home-logo: 9.375rem;
    display: grid;
    width: min(100%, 72rem);
    min-height: 100%;
    margin-inline: auto;
    align-content: center;
    grid-template-areas:
        "sigil sigil"
        "manifest character"
        "disclaimer disclaimer";
    grid-template-columns: minmax(0, 1.618fr) minmax(18rem, 1fr);
    column-gap: var(--home-space-xl);
    row-gap: var(--home-space-m);
    padding-block: var(--home-space-l);
}

.welcome-heading {
    display: grid;
    grid-area: manifest;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 0;
    row-gap: var(--home-space-m);
    align-self: center;
}

.welcome-sigil {
    display: block;
    width: var(--home-logo);
    height: auto;
    grid-area: sigil;
    justify-self: center;
    margin-top: 0;
    opacity: 0.82;
    filter: drop-shadow(0 0 18px rgb(88 227 109 / 16%));
}

.welcome-quotation {
    min-width: 0;
    grid-column: 1;
    grid-row: 1;
}

.welcome-heading h1 {
    max-width: 38.2ch;
    margin-bottom: var(--home-space-s);
    color: #fff;
    font-size: clamp(1.25rem, 1.5vw, 1.618rem);
    font-style: italic;
    font-weight: 700;
    font-synthesis: weight style;
    letter-spacing: -0.018em;
    line-height: 1.5;
    text-wrap: balance;
}

.welcome-attribution {
    margin: 0 0 var(--home-space-xs);
    color: var(--text);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.5;
}

.welcome-citation {
    max-width: 72ch;
    margin: 0;
    color: var(--text-dim);
    font-size: var(--text-xs);
    line-height: 1.6;
}

.welcome-citation a {
    color: inherit;
    text-decoration-color: var(--line-strong);
    text-underline-offset: 0.2em;
}

.welcome-citation a:hover {
    color: var(--cyan);
    text-decoration-color: currentColor;
}

.welcome-lead {
    max-width: 61.8ch;
    margin: 0;
    padding-top: var(--home-space-s);
    border-top: 1px solid var(--line);
    color: var(--text-muted);
    font-size: clamp(var(--text-sm), 1.15vw, var(--text-md));
    grid-column: 1;
    grid-row: 2;
    line-height: 1.618;
}

.welcome-character {
    position: relative;
    display: grid;
    grid-area: character;
    align-self: center;
    align-content: center;
    padding: var(--home-space-l) var(--home-space-s) var(--home-space-l) var(--home-space-l);
    border-block: 1px solid color-mix(in srgb, var(--green) 18%, var(--line));
    border-left: 1px solid var(--green);
    background: linear-gradient(90deg, rgb(88 227 109 / 7%), rgb(88 227 109 / 1.5%) 61.8%, transparent);
}

.welcome-character::before {
    position: absolute;
    top: 0;
    left: -1px;
    width: 1px;
    height: 38.2%;
    background: var(--green);
    box-shadow: 0 0 21px rgb(88 227 109 / 62%);
    content: "";
}

.welcome-character strong {
    display: block;
    margin-bottom: var(--home-space-s);
    color: var(--green);
    font-size: clamp(1.25rem, 1.8vw, 1.618rem);
    letter-spacing: 0.03em;
    line-height: 1.2;
}

.welcome-character p {
    max-width: 42ch;
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: 1.618;
}

.welcome-character .welcome-hint {
    margin-top: var(--home-space-m);
    padding-top: var(--home-space-s);
    border-top: 1px solid var(--line);
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.welcome-disclaimer {
    display: grid;
    width: min(100%, 80ch);
    grid-area: disclaimer;
    grid-column: 1 / -1;
    grid-template-columns: minmax(0, 1fr);
    justify-self: center;
    gap: var(--home-space-xs);
    padding-top: var(--home-space-m);
    border-top: 1px solid var(--line);
    font-size: var(--text-xs);
}

.welcome-disclaimer strong {
    color: var(--amber);
    font-size: inherit;
    letter-spacing: 0.12em;
}

.welcome-disclaimer-copy {
    display: grid;
    max-width: none;
    gap: var(--home-space-xs);
}

.welcome-disclaimer p {
    max-width: none;
    margin: 0;
    color: var(--text-dim);
    font-size: inherit;
    line-height: 1.7;
}

.welcome-disclaimer .welcome-legal {
    color: var(--text-muted);
}

.welcome-legal a {
    color: inherit;
    text-decoration-color: var(--line-strong);
}

.welcome-legal a:hover,
.welcome-legal a:focus-visible {
    color: var(--cyan);
    text-decoration-color: currentcolor;
}

.site-footer {
    display: grid;
    grid-area: site-footer;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: var(--space-3);
    min-height: 30px;
    padding: var(--space-1) max(var(--space-3), calc((100vw - var(--content)) / 2)) max(var(--space-1), env(safe-area-inset-bottom));
    border-top: 1px solid var(--line);
    background: var(--canvas);
    color: var(--text-dim);
    font-size: var(--text-xs);
    line-height: 1.35;
}

.site-footer-ethos {
    justify-self: center;
    color: var(--text-muted);
}

.site-footer a {
    justify-self: end;
    color: var(--cyan);
    text-decoration-color: transparent;
    text-underline-offset: 0.2em;
}

.site-footer a:hover,
.site-footer a:focus-visible {
    text-decoration-color: currentColor;
}

.message {
    position: relative;
    display: grid;
    grid-template-columns: 9rem minmax(0, 1fr) auto;
    gap: var(--space-4);
    width: 100%;
    margin-bottom: var(--space-1);
    padding: var(--space-4);
    border: 0;
    border-left: 2px solid var(--line-strong);
    border-radius: var(--radius);
    background: linear-gradient(110deg, rgb(255 255 255 / 2.5%), transparent 72%);
}

.message.user {
    border-left-color: color-mix(in srgb, var(--green) 72%, var(--line));
    background: linear-gradient(110deg, rgb(88 227 109 / 6%), rgb(88 227 109 / 1%) 72%, transparent);
}

.message.assistant {
    border-left-color: color-mix(in srgb, var(--cyan) 72%, var(--line));
    background: linear-gradient(110deg, rgb(89 203 232 / 6%), rgb(89 203 232 / 1%) 72%, transparent);
}

.message.system {
    padding-block: var(--space-3);
    border-left-color: var(--line);
    background: transparent;
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.message.error {
    color: var(--red);
}

.prefix {
    overflow: hidden;
    color: var(--text-dim);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.8;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.user .prefix {
    color: var(--green);
}

.assistant .prefix {
    color: var(--cyan);
}

.error .prefix {
    color: var(--red);
}

.content {
    width: min(100%, var(--measure));
    min-width: 0;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

.assistant .content {
    line-height: 1.72;
    white-space: normal;
}

.copy-btn {
    min-height: 34px;
    padding: 0 var(--space-2);
    border-color: transparent;
    color: var(--text-dim);
    font-size: var(--text-xs);
    opacity: 0;
    transition: opacity var(--motion-fast) ease, color var(--motion-fast) ease;
}

.message:hover .copy-btn,
.copy-btn:focus-visible,
.copy-btn.copied {
    opacity: 1;
}

.copy-btn.copied {
    color: var(--green);
}

.loading-content {
    display: inline-flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    color: var(--cyan);
}

.thinking-timer-span {
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.file-attachment-info {
    margin-top: var(--space-2);
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.assistant .content > :first-child {
    margin-top: 0;
}

.assistant .content > :last-child {
    margin-bottom: 0;
}

.assistant .content pre,
.assistant .content code {
    font-family: var(--font-mono);
}

.assistant .content pre {
    max-width: 100%;
    padding: var(--space-4);
    overflow: auto;
    border-left: 2px solid var(--cyan);
    background: #050708;
}

.assistant .content :not(pre) > code {
    padding: 0.1em 0.3em;
    background: var(--surface-raised);
    color: var(--cyan);
}

.assistant .content blockquote {
    margin-inline: 0;
    padding-left: var(--space-4);
    border-left: 2px solid var(--line-strong);
    color: var(--text-muted);
}

.assistant .content table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.assistant .content th,
.assistant .content td {
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--line);
    text-align: left;
}

#inputAreaContainer {
    position: relative;
    z-index: 20;
    display: grid;
    grid-area: composer;
    row-gap: var(--space-2);
    padding: var(--space-2) max(var(--space-3), calc((100vw - var(--content)) / 2));
    border-top: 1px solid var(--line);
    background: linear-gradient(180deg, rgb(13 17 16 / 97%), rgb(7 9 10 / 99%));
    box-shadow: 0 -18px 50px rgb(0 0 0 / 26%);
}

.composer-meta {
    display: flex;
    min-height: var(--control-compact);
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: var(--text-xs);
}

#scrollToLatestButton {
    min-height: var(--control-compact);
    padding: 0 var(--space-3);
    border-color: var(--line-strong);
    color: var(--text-muted);
    font-size: inherit;
}

#inputArea {
    display: grid;
    align-items: center;
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    gap: var(--space-2);
    padding: var(--space-2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
    transition:
        border-color var(--motion-fast) ease,
        box-shadow var(--motion-standard) ease;
}

#inputArea.focused {
    border-color: color-mix(in srgb, var(--cyan) 68%, var(--line));
    box-shadow: 0 0 0 1px rgb(89 203 232 / 6%), 0 0 30px rgb(89 203 232 / 5%);
}

#inputArea:has(#uploadButton[hidden]) {
    grid-template-columns: auto minmax(0, 1fr) auto;
}

#fileInput {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
}

#prompt {
    align-self: center;
    color: var(--green);
    font-weight: 700;
}

#userInput {
    min-width: 0;
    min-height: var(--control);
    max-height: 150px;
    padding: 0.65rem 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    line-height: 1.5;
}

#userInput::placeholder {
    white-space: nowrap;
}

#userInput:focus {
    border-color: transparent;
}

#userInput:focus-visible {
    outline: 0;
}

#uploadButton,
.send-button {
    min-width: 76px;
}

.composer-attachments {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    padding: var(--space-3);
    overflow: hidden;
    border: 1px solid rgb(86 214 225 / 42%);
    border-radius: var(--radius);
    background: linear-gradient(90deg, rgb(86 214 225 / 9%), rgb(13 17 16 / 92%));
    box-shadow: inset 3px 0 0 var(--cyan);
}

.composer-attachments[hidden] {
    display: none;
}

.attachment-summary {
    flex: 1 0 100%;
    color: var(--cyan);
    font-size: var(--text-xs);
    letter-spacing: 0.035em;
}

.file-list-item {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: var(--space-2);
    max-width: min(100%, 440px);
    min-height: 38px;
    padding: 0.25rem 0.35rem 0.25rem var(--space-3);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
    color: var(--text-muted);
    font-size: var(--text-xs);
}

.file-list-item strong {
    max-width: min(28ch, 52vw);
    overflow: hidden;
    color: var(--text);
    font-size: inherit;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-list-item > span:not(.file-state-indicator) {
    color: var(--text-dim);
    white-space: nowrap;
}

.file-list-item button {
    min-height: 34px;
    padding-block: 0;
    border-color: transparent;
    color: var(--red);
    font-size: var(--text-xs);
}

.file-list-item.uploading {
    border-color: rgb(86 214 225 / 38%);
}

.file-state-indicator {
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 4px rgb(86 214 225 / 10%);
    animation: attachment-pulse 1.2s ease-in-out infinite;
}

@keyframes attachment-pulse {
    50% {
        opacity: 0.35;
        transform: scale(0.8);
    }
}

@media (prefers-reduced-motion: reduce) {
    .file-state-indicator {
        animation: none;
    }
}

.auth-gate,
.app-dialog {
    width: min(calc(100% - 32px), 620px);
    max-height: min(88dvh, 780px);
    margin: auto;
    padding: 0;
    overflow: auto;
    border: 0;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 28px 90px rgb(0 0 0 / 70%);
    container-type: inline-size;
}

.help-dialog,
.files-dialog {
    width: min(calc(100% - 32px), 760px);
}

.compact-dialog {
    width: min(calc(100% - 32px), 520px);
}

.auth-card,
.app-dialog > :not(.dialog-header) {
    margin-inline: var(--space-6);
}

.auth-card {
    padding-bottom: var(--space-6);
}

.auth-dialog-header {
    margin-inline: calc(-1 * var(--space-6));
}

.dialog-header {
    position: sticky;
    z-index: 2;
    top: 0;
    display: flex;
    min-height: var(--control-prominent);
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin: 0 0 var(--space-5);
    padding: var(--space-2) var(--space-6);
    border-bottom: 1px solid var(--line);
    background: rgb(13 16 17 / 96%);
}

.dialog-header h2,
.dialog-header span {
    margin: 0;
    font-size: var(--text-md);
    font-weight: 700;
}

.dialog-header button {
    min-height: var(--control-compact);
    padding-inline: 0;
    border-color: transparent;
}

.auth-lead {
    margin-bottom: var(--space-5);
    color: var(--text-muted);
}

.segmented-control {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: var(--space-5);
    border-bottom: 1px solid var(--line);
}

.segment {
    border: 0;
    border-bottom: 2px solid transparent;
    border-radius: 0;
}

.segment.active {
    border-bottom-color: var(--green);
    color: var(--text);
}

.check-row {
    display: grid;
    align-items: start;
    grid-template-columns: auto minmax(0, 1fr);
}

.check-row input,
.character-results input {
    width: 18px;
    min-height: 18px;
    margin-top: 2px;
    accent-color: var(--green);
}

.legal-links {
    color: var(--text-dim);
    font-size: var(--text-xs);
    line-height: 1.6;
}

.help-dialog-content {
    padding-bottom: var(--space-6);
}

.help-lead {
    max-width: 58ch;
    color: var(--text);
    font-size: var(--text-md);
    line-height: 1.65;
}

.help-dialog-content section,
.help-command-details {
    padding-block: var(--space-4);
    border-top: 1px solid var(--line);
}

.help-dialog-content h3 {
    margin: 0 0 var(--space-2);
    color: var(--green);
    font-size: var(--text-sm);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.help-dialog-content p {
    line-height: 1.65;
}

.help-command-details summary {
    min-height: var(--control);
    color: var(--cyan);
    cursor: pointer;
}

.help-command-details ul {
    display: grid;
    gap: var(--space-2);
    margin: var(--space-3) 0 0;
    padding-left: var(--space-5);
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: 1.55;
}

.support-reference {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3);
    border-left: 2px solid var(--cyan);
    background: rgb(89 203 232 / 5%);
    color: var(--text-muted);
}

.support-reference code {
    color: var(--cyan);
    font-size: var(--text-md);
    letter-spacing: 0.08em;
}

.stack-form,
.guest-account-actions,
.stored-file-list,
.conversation-list,
.archive-search-results {
    margin-bottom: var(--space-5);
}

.dialog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-block: var(--space-4);
}

.danger-zone {
    margin-block: var(--space-4) var(--space-6);
    padding-top: var(--space-3);
    border-top: 1px solid var(--line);
}

.danger-zone summary {
    display: flex;
    min-height: var(--control);
    align-items: center;
    color: var(--red);
    cursor: pointer;
}

.turnstile-slot {
    min-height: 65px;
}

.guest-verification-dialog > p,
.guest-verification-dialog > form,
.guest-verification-dialog > .form-status {
    margin-inline: var(--space-6);
}

.guest-verification-dialog > .form-status {
    margin-bottom: var(--space-5);
}

.recovery-dialog pre {
    max-height: 300px;
    padding: var(--space-4);
    overflow: auto;
    background: #050708;
    color: var(--green);
}

.new-chat-dialog {
    width: min(calc(100% - 32px), 760px);
    overflow: hidden;
}

.new-chat-form {
    display: grid;
    max-height: min(68dvh, 620px);
    grid-template-rows: auto minmax(0, 1fr) auto;
    margin-inline: var(--space-6);
    padding-bottom: var(--space-6);
    overflow: hidden;
}

.new-chat-intro {
    display: grid;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.new-chat-intro p {
    max-width: 66ch;
    margin: 0;
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.character-picker,
.arena-characters {
    display: grid;
    min-height: 0;
    align-content: start;
    gap: var(--space-2);
}

.character-picker {
    grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.arena-characters {
    grid-template-rows: auto auto auto minmax(0, 1fr) auto;
}

.picker-search {
    display: grid;
    grid-template-columns: minmax(8rem, 0.32fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-3);
}

.picker-search input {
    min-height: var(--control);
}

.picker-status,
.arena-selection-summary {
    min-height: 1.5em;
    margin: 0;
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.arena-selection-summary {
    color: var(--green);
}

.character-results {
    display: grid;
    min-height: 0;
    max-height: min(48dvh, 28rem);
    align-content: start;
    overflow-y: auto;
    border: 1px solid var(--line);
    background: var(--surface-soft);
    overscroll-behavior: contain;
    scroll-padding-block: var(--space-3);
    scrollbar-color: var(--line-strong) transparent;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
}

.character-choice {
    position: relative;
    display: grid;
    min-height: 88px;
    align-content: center;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: var(--space-3);
    row-gap: var(--space-1);
    padding: var(--space-4);
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    transition:
        background var(--motion-fast) ease,
        box-shadow var(--motion-fast) ease,
        color var(--motion-fast) ease;
}

.character-choice:last-child {
    border-bottom: 0;
}

.character-choice input {
    position: absolute;
    width: 1px;
    height: 1px;
    min-height: 1px;
    opacity: 0;
}

.character-choice-multi {
    grid-template-columns: auto auto minmax(0, 1fr);
}

.character-choice-multi input {
    position: static;
    width: 18px;
    height: 18px;
    min-height: 18px;
    grid-row: 1 / 3;
    margin: 0;
    opacity: 1;
    accent-color: var(--green);
}

.character-choice-multi .character-choice-index {
    grid-column: 2;
}

.character-choice-multi strong,
.character-choice-multi small {
    grid-column: 3;
}

.character-choice-index {
    grid-row: 1 / 3;
    color: var(--text-dim);
    font-size: var(--text-xs);
    letter-spacing: 0.08em;
}

.character-choice strong {
    color: var(--text);
    font-size: var(--text-md);
}

.character-choice small {
    max-width: 56ch;
    line-height: 1.55;
}

.character-choice:hover {
    background: rgb(255 255 255 / 3%);
}

.character-choice:has(input:checked) {
    background: linear-gradient(90deg, rgb(88 227 109 / 10%), rgb(88 227 109 / 2%) 72%, transparent);
    box-shadow: inset 2px 0 0 var(--green);
}

.character-choice:has(input:focus-visible) {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
}

.character-choice:has(input:checked) .character-choice-index,
.character-choice:has(input:checked) strong {
    color: var(--green);
}

.new-chat-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--line);
}

.new-chat-actions p {
    max-width: 48ch;
    margin: 0;
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.new-chat-actions button {
    min-width: 150px;
}

.arena-characters {
    margin: 0;
    padding: 0;
    border: 0;
}

.arena-characters legend {
    margin-bottom: var(--space-3);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

#arenaDialog {
    width: min(calc(100% - 32px), 900px);
    overflow: hidden;
}

.arena-form {
    display: grid;
    max-height: min(70dvh, 640px);
    grid-template-rows: minmax(0, 1fr) auto;
    gap: var(--space-4);
    margin-inline: var(--space-6);
    padding-bottom: var(--space-6);
    overflow: hidden;
}

.arena-form-content {
    display: grid;
    min-height: 0;
    grid-template-columns: minmax(0, 1.25fr) minmax(17rem, 0.75fr);
    gap: var(--space-5);
    overflow: hidden;
}

.arena-fields {
    display: grid;
    min-width: 0;
    align-content: start;
    gap: var(--space-4);
}

.arena-fields input[type="number"] {
    max-width: 8rem;
}

.dialog-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--line);
}

.arena-actions {
    min-height: calc(var(--control) + var(--space-4));
}

.arena-actions span {
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.arena-actions button {
    min-width: 160px;
}

.drawer-backdrop {
    position: fixed;
    z-index: 70;
    inset: 0;
    background: rgb(0 0 0 / 58%);
}

.history-drawer {
    position: fixed;
    z-index: 80;
    top: 0;
    left: 0;
    display: flex;
    width: min(440px, 100vw);
    height: 100dvh;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-5);
    overflow: hidden;
    border-right: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 18px 0 60px rgb(0 0 0 / 46%);
    transform: translateX(-102%);
    transition: transform var(--motion-standard) var(--ease-out);
}

.history-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
}

.drawer-header h2 {
    margin: 0;
}

.drawer-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--space-2);
}

.drawer-filter,
.drawer-search label {
    display: grid;
    gap: var(--space-1);
}

.drawer-filter > span,
.drawer-search label > span {
    color: var(--text-dim);
    font-size: var(--text-xs);
}

.conversation-list,
.archive-search-results {
    display: grid;
    align-content: start;
    gap: var(--space-2);
    overflow-y: auto;
}

.conversation-list {
    min-height: 0;
    flex: 1 1 auto;
    grid-auto-rows: max-content;
}

.archive-search-results {
    max-height: 30dvh;
    flex: 0 1 auto;
}

.archive-search-results:empty {
    display: none;
}

.conversation-row {
    display: grid;
    width: 100%;
    min-height: 62px;
    justify-items: start;
    gap: var(--space-1);
    padding: var(--space-3);
    background: var(--canvas);
    text-align: left;
}

.conversation-row.active {
    border-color: var(--green);
}

.conversation-entry {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: stretch;
    overflow: hidden;
    border: 1px solid var(--line);
    border-left: 2px solid transparent;
    border-radius: var(--radius);
    background: var(--canvas);
}

.conversation-entry.active {
    border-left-color: var(--green);
    background: linear-gradient(90deg, rgb(88 227 109 / 8%), var(--canvas) 72%);
}

.conversation-entry .conversation-row {
    border: 0;
    border-radius: 0;
    background: transparent;
}

.conversation-entry .conversation-actions {
    display: flex;
    align-items: center;
    padding: var(--space-2);
    border-left: 1px solid var(--line);
}

.conversation-entry .conversation-actions button {
    min-height: var(--control-compact);
}

.conversation-row strong,
.stored-file-card strong {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-actions,
.stored-file-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
}

.conversation-actions {
    grid-template-columns: auto;
    justify-content: end;
}

.archive-search-result,
.stored-file-card {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-3);
    border-left: 2px solid var(--cyan);
    background: var(--canvas);
}

.stored-file-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stored-file-actions button:first-child {
    grid-column: 1 / -1;
}

.stored-file-actions button {
    min-width: 0;
}

.stored-file-actions button.attached {
    border-color: var(--green);
    color: var(--green);
}

.file-library-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(9rem, 0.6fr);
    gap: var(--space-3);
    margin-block: var(--space-4);
}

.stored-file-list {
    display: grid;
    gap: var(--space-2);
}

.empty-state {
    display: grid;
    gap: var(--space-1);
    padding-block: var(--space-4);
}

.notification-region {
    min-width: 0;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--line);
    border-left: 2px solid var(--green);
    background: var(--surface-raised);
    color: var(--text);
    font-size: var(--text-sm);
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.app-shell > .notification-region {
    grid-area: notice;
    margin: var(--space-2) max(var(--space-3), calc((100vw - var(--content)) / 2)) 0;
    text-align: center;
}

.app-dialog > .notification-region {
    margin-block: calc(-1 * var(--space-2)) var(--space-4);
}

.history-drawer > .notification-region {
    flex: 0 0 auto;
}

.notification-region.error {
    border-left-color: var(--red);
    color: var(--red);
}

.access-gate {
    position: fixed;
    z-index: 9000;
    inset: 0;
    display: grid;
    place-items: center;
    padding: var(--space-5);
    overflow: auto;
    background:
        radial-gradient(circle at 50% 18%, rgb(88 227 109 / 10%), transparent 34%),
        var(--canvas);
}

.access-card {
    width: min(100%, 31rem);
    padding: clamp(var(--space-5), 6vw, var(--space-7));
    border: 1px solid var(--line-strong);
    border-top-color: var(--green);
    border-radius: var(--radius);
    background: rgb(13 17 16 / 96%);
    box-shadow: 0 28px 90px rgb(0 0 0 / 70%);
}

.access-kicker {
    margin-bottom: var(--space-3);
    color: var(--green);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.14em;
}

.access-form {
    display: grid;
    gap: var(--space-4);
}

.access-form .form-status {
    color: var(--red);
}

#maintenanceScreen {
    position: fixed;
    z-index: 10000;
    inset: 0;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: var(--space-3);
    padding: var(--space-5);
    background: var(--canvas);
    text-align: center;
}

.maint-title {
    color: var(--green);
    font-size: var(--text-xl);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.maint-rule,
.maint-msg {
    color: var(--text-muted);
}

@container (max-width: 560px) {
    .file-library-toolbar,
    .picker-search {
        grid-template-columns: 1fr;
    }

    .picker-search {
        gap: var(--space-1);
    }
}

@media (min-width: 721px) and (max-width: 960px) {
    .terminal-welcome {
        grid-template-areas:
            "sigil"
            "manifest"
            "character"
            "disclaimer";
        grid-template-columns: 1fr;
        row-gap: var(--home-space-l);
    }

    .welcome-character {
        width: min(61.8%, 28rem);
        justify-self: end;
    }
}

@media (max-width: 720px) {
    .app-shell {
        grid-template-rows: auto 48px auto minmax(0, 1fr) auto;
    }

    .app-header {
        grid-template-columns: var(--control) minmax(0, 1fr) var(--control);
        grid-template-rows: var(--control);
        gap: var(--space-2);
        padding: max(var(--space-2), env(safe-area-inset-top)) var(--space-3) var(--space-2);
    }

    .brand-lockup {
        grid-row: 1;
        grid-column: 2;
        justify-self: center;
    }

    .header-tools {
        display: contents;
    }

    #historyButton {
        width: var(--control);
        grid-row: 1;
        grid-column: 1;
        padding: 0;
    }

    .header-button {
        min-height: var(--control);
    }

    .account-button {
        width: var(--control);
        max-width: none;
        grid-row: 1;
        grid-column: 3;
        justify-self: end;
        padding: 0;
    }

    .header-button-label {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        clip-path: inset(50%);
        white-space: nowrap;
    }

    .quick-actions {
        justify-content: stretch;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0;
    }

    .quick-actions > button,
    .quick-actions > details > summary {
        justify-content: center;
        padding-inline: var(--space-2);
        font-size: var(--text-xs);
    }

    .command-menu-panel {
        right: var(--space-2);
    }

    #terminal {
        padding: var(--space-3) var(--space-4) var(--space-5);
    }

    .terminal-welcome {
        min-height: auto;
        grid-template-areas:
            "sigil"
            "manifest"
            "character"
            "disclaimer";
        grid-template-columns: 1fr;
        row-gap: var(--home-space-l);
        padding-block: var(--home-space-m) var(--home-space-l);
    }

    .welcome-heading {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto auto;
        column-gap: 0;
        row-gap: var(--home-space-m);
    }

    .welcome-sigil {
        width: 5.625rem;
    }

    .welcome-heading h1 {
        max-width: 30ch;
        font-size: clamp(1.05rem, 4.5vw, 1.25rem);
        line-height: 1.5;
    }

    .welcome-lead {
        max-width: 61.8ch;
    }

    .welcome-character {
        padding: var(--home-space-m) var(--home-space-s) var(--home-space-m) var(--home-space-m);
    }

    .welcome-disclaimer {
        grid-template-columns: 1fr;
        gap: var(--home-space-xs);
        padding-top: var(--home-space-m);
    }

    .site-footer {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        column-gap: var(--space-4);
        row-gap: 2px;
        padding-inline: var(--space-3);
    }

    .message {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: var(--space-2);
        padding: var(--space-4);
    }

    .prefix {
        grid-column: 1;
    }

    .content {
        grid-column: 1 / -1;
        grid-row: 2;
        width: 100%;
    }

    .copy-btn {
        grid-column: 2;
        grid-row: 1;
        min-height: var(--control);
        opacity: 0.82;
    }

    #inputAreaContainer {
        padding-inline: var(--space-3);
    }

    #inputArea {
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    #inputArea:has(#uploadButton[hidden]) {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    #prompt {
        display: none;
    }

    #uploadButton {
        min-width: 68px;
    }

    .send-button {
        min-width: 70px;
    }

    .auth-gate,
    .app-dialog {
        width: calc(100% - 16px);
        max-height: calc(100dvh - 16px);
    }

    .auth-card,
    .app-dialog > :not(.dialog-header),
    .guest-verification-dialog > p,
    .guest-verification-dialog > form,
    .guest-verification-dialog > .form-status {
        margin-inline: var(--space-4);
    }

    .auth-dialog-header {
        margin-inline: calc(-1 * var(--space-4));
    }

    .dialog-header {
        padding-inline: var(--space-4);
    }

    .dialog-header button {
        min-height: var(--control);
    }

    .new-chat-form {
        max-height: calc(100dvh - 92px);
        margin-inline: var(--space-4);
    }

    .character-choice {
        min-height: 96px;
        padding: var(--space-3);
    }

    .character-results {
        max-height: min(44dvh, 24rem);
    }

    .new-chat-actions {
        position: static;
        align-items: stretch;
        flex-direction: column;
        margin-inline: calc(-1 * var(--space-1));
        padding: var(--space-4) var(--space-1) var(--space-2);
        background: var(--surface);
        box-shadow: none;
    }

    .new-chat-actions button {
        width: 100%;
    }

    .arena-form {
        max-height: calc(100dvh - 92px);
        margin-inline: var(--space-4);
        overflow: hidden;
    }

    .arena-form-content {
        grid-template-columns: 1fr;
        gap: var(--space-4);
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-gutter: stable;
    }

    .arena-characters {
        min-height: 15rem;
    }

    .arena-actions {
        align-items: stretch;
        flex-direction: column;
        padding-bottom: var(--space-2);
        background: var(--surface);
    }

    .arena-actions button {
        width: 100%;
    }

    .history-drawer {
        padding: var(--space-4);
    }

}

@media (max-width: 360px) {
    .app-header {
        padding-inline: var(--space-2);
    }

    .brand-lockup strong,
    .brand-separator,
    .brand-context {
        font-size: var(--text-xs);
    }

    .brand-mark {
        width: 22px;
    }

    .brand-context {
        max-width: 14ch;
    }

    .quick-actions > button,
    .quick-actions > details > summary {
        padding-inline: var(--space-1);
        font-size: var(--text-xs);
    }
}

@media (max-width: 720px) and (max-height: 640px) {
    .new-chat-intro {
        gap: var(--space-1);
        margin-bottom: var(--space-3);
    }

    .new-chat-intro p {
        font-size: var(--text-xs);
        line-height: 1.5;
    }

    .picker-search {
        grid-template-columns: minmax(4rem, 0.3fr) minmax(0, 1fr);
        align-items: center;
        gap: var(--space-2);
    }

    .new-chat-actions {
        gap: var(--space-2);
        padding-top: var(--space-2);
    }

    .new-chat-actions button {
        min-height: var(--control);
    }

    .character-choice {
        min-height: 82px;
    }
}

@media (hover: none) {
    .copy-btn {
        color: var(--text-muted);
        opacity: 1;
    }
}