:root {
    color-scheme: dark;
    --ink: #11140f;
    --ink-deep: #090b08;
    --panel: #171b14;
    --panel-raised: #1d2219;
    --paper: #f4f2e8;
    --muted: #969e8e;
    --line: #32392d;
    --line-bright: #536049;
    --signal: #d7ff3f;
    --cyan: #72dfd1;
    --amber: #ffca68;
    --danger: #ff8374;
    --display: "Bahnschrift", "Aptos Display", "Segoe UI", sans-serif;
    --body: "Aptos", "Segoe UI", sans-serif;
    --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--ink-deep);
}

body {
    min-height: 100vh;
    margin: 0;
    overflow: hidden;
    color: var(--paper);
    background:
        radial-gradient(circle at 68% -10%, rgba(215, 255, 63, 0.1), transparent 31rem),
        linear-gradient(135deg, rgba(114, 223, 209, 0.025), transparent 44%),
        var(--ink);
    font: 15px/1.55 var(--body);
}

button,
textarea {
    color: inherit;
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--signal);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 12px;
    left: 12px;
    padding: 10px 14px;
    transform: translateY(-180%);
    color: var(--ink);
    background: var(--signal);
}

.skip-link:focus {
    transform: translateY(0);
}

.signal-field {
    position: fixed;
    z-index: -1;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(158, 174, 145, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(158, 174, 145, 0.045) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.signal-field span {
    position: absolute;
    top: -25vh;
    width: 1px;
    height: 28vh;
    background: linear-gradient(transparent, rgba(215, 255, 63, 0.55), transparent);
    animation: signal-drop 8s infinite linear;
}

.signal-field span:nth-child(1) { left: 18%; animation-delay: -1s; }
.signal-field span:nth-child(2) { left: 47%; animation-delay: -6s; }
.signal-field span:nth-child(3) { left: 72%; animation-delay: -3s; }
.signal-field span:nth-child(4) { left: 91%; animation-delay: -7s; }

.chat-header {
    display: grid;
    min-height: 78px;
    padding: 0 30px;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    border-bottom: 1px solid var(--line);
    background: rgba(9, 11, 8, 0.88);
    backdrop-filter: blur(18px);
}

.wordmark {
    display: flex;
    width: fit-content;
    gap: 12px;
    align-items: center;
    color: inherit;
    text-decoration: none;
    letter-spacing: 0.14em;
    font: 650 14px var(--display);
}

.wordmark-mark {
    display: grid;
    width: 39px;
    height: 39px;
    place-items: center;
    overflow: hidden;
    color: var(--ink);
    background: var(--signal);
    clip-path: polygon(0 0, 75% 0, 100% 25%, 100% 100%, 25% 100%, 0 75%);
}

.brand-emoji {
    display: inline-block;
    transform: translateY(1px);
    font-size: 21px;
    line-height: 1;
}

.header-context {
    display: flex;
    gap: 12px;
    align-items: center;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font: 9px var(--mono);
}

.header-context span {
    color: var(--muted);
}

.header-context strong {
    padding-left: 12px;
    color: var(--cyan);
    border-left: 1px solid var(--line);
    font-weight: 500;
}

.back-link {
    justify-self: end;
    color: var(--muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font: 9px var(--mono);
}

.back-link:hover {
    color: var(--paper);
}

.chat-workspace {
    display: grid;
    height: calc(100vh - 78px);
    grid-template-columns: 292px minmax(0, 1fr);
}

.history-rail {
    display: flex;
    min-height: 0;
    padding: 30px 22px 22px;
    flex-direction: column;
    border-right: 1px solid var(--line);
    background: rgba(13, 16, 11, 0.9);
}

.rail-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
}

.eyebrow {
    margin: 0;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font: 9px var(--mono);
}

.rail-heading h1 {
    margin: 6px 0 0;
    letter-spacing: -0.025em;
    font: 600 23px var(--display);
}

.icon-button,
.history-open {
    display: none;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.new-chat-button {
    display: flex;
    min-height: 46px;
    margin-top: 28px;
    padding: 0 15px;
    gap: 10px;
    align-items: center;
    color: var(--ink);
    border: 1px solid var(--signal);
    background: var(--signal);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font: 650 10px var(--mono);
}

.new-chat-button:hover {
    background: #e4ff76;
}

.history-list {
    display: grid;
    min-height: 0;
    margin: 22px -6px 0;
    padding: 0 6px;
    gap: 7px;
    overflow-y: auto;
    list-style: none;
    scrollbar-color: var(--line-bright) transparent;
}

.history-item button {
    width: 100%;
    padding: 12px;
    color: var(--muted);
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    text-align: left;
}

.history-item {
    min-width: 0;
}

.history-item button {
    min-width: 0;
    overflow: hidden;
}

.history-item button:hover,
.history-item button[aria-current="true"] {
    color: var(--paper);
    border-color: var(--line);
    background: rgba(215, 255, 63, 0.045);
}

.history-item strong,
.history-item span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.history-item strong {
    font-size: 13px;
    font-weight: 550;
}

.history-item span {
    margin-top: 4px;
    color: #6f7868;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font: 8px var(--mono);
}

.history-empty {
    margin-top: 26px;
    padding: 26px 16px;
    color: var(--muted);
    border: 1px dashed var(--line);
}

.history-empty span {
    color: #67705f;
    letter-spacing: 0.12em;
    font: 8px var(--mono);
}

.history-empty p {
    margin: 9px 0 0;
    font-size: 12px;
}

.rail-footer {
    margin-top: auto;
    padding-top: 18px;
    color: #747c6d;
    border-top: 1px solid var(--line);
    font-size: 11px;
}

.rail-footer p {
    margin: 0 0 12px;
}

.text-button {
    padding: 0;
    color: var(--muted);
    border: 0;
    border-bottom: 1px solid var(--line-bright);
    background: transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font: 8px var(--mono);
}

.text-button:hover {
    color: var(--danger);
}

.conversation-console {
    display: grid;
    min-width: 0;
    min-height: 0;
    grid-template-rows: auto auto minmax(0, 1fr) auto auto auto;
}

.console-header {
    display: grid;
    min-height: 116px;
    padding: 24px clamp(24px, 5vw, 72px);
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 30px;
    align-items: center;
    border-bottom: 1px solid var(--line);
}

.console-title h2 {
    margin: 7px 0 0;
    letter-spacing: -0.035em;
    font: 620 clamp(25px, 3vw, 38px)/1 var(--display);
}

.live-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 6px;
    border-radius: 50%;
    background: var(--muted);
}

.live-dot.is-live {
    background: var(--signal);
    box-shadow: 0 0 0 6px rgba(215, 255, 63, 0.08);
}

.domain-readout {
    display: flex;
    margin: 0;
    gap: 30px;
}

.domain-readout div {
    min-width: 120px;
}

.domain-readout dt {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font: 8px var(--mono);
}

.domain-readout dd {
    max-width: 220px;
    margin: 7px 0 0;
    overflow: hidden;
    color: var(--cyan);
    text-overflow: ellipsis;
    white-space: nowrap;
    font: 10px var(--mono);
}

.scope-banner {
    display: grid;
    min-height: 52px;
    padding: 11px clamp(24px, 5vw, 72px);
    grid-template-columns: 54px 1fr;
    gap: 14px;
    align-items: center;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
    background: rgba(114, 223, 209, 0.035);
    font-size: 12px;
}

.scope-banner.is-warning {
    color: #d8c9a7;
    background: rgba(255, 202, 104, 0.055);
}

.scope-banner.is-offline {
    color: #c2a6a0;
    background: rgba(255, 131, 116, 0.045);
}

.scope-banner p {
    margin: 0;
}

.scope-code {
    color: var(--cyan);
    letter-spacing: 0.1em;
    font: 9px var(--mono);
}

.is-warning .scope-code { color: var(--amber); }
.is-offline .scope-code { color: var(--danger); }

.transcript {
    width: min(100%, 920px);
    min-height: 0;
    margin: 0 auto;
    padding: 34px clamp(20px, 4vw, 48px) 24px;
    overflow-y: auto;
    scroll-behavior: smooth;
    scrollbar-color: var(--line-bright) transparent;
}

.message {
    display: grid;
    padding: 0 0 30px;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 20px;
    animation: message-arrive 220ms ease-out both;
}

.message + .message {
    padding-top: 30px;
    border-top: 1px solid rgba(50, 57, 45, 0.7);
}

.message-meta {
    padding-top: 4px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font: 8px/1.6 var(--mono);
}

.message-meta span,
.message-meta time {
    display: block;
}

.message-assistant .message-meta span { color: var(--signal); }
.message-user .message-meta span { color: var(--cyan); }
.message-refusal .message-meta span { color: var(--amber); }

.message-body {
    max-width: 760px;
    font-size: 16px;
}

.message-user .message-body {
    color: #d2d8ca;
}

.message-body p {
    margin: 0;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.source-ledger {
    display: grid;
    grid-column: 2;
    margin-top: 16px;
    gap: 7px;
}

.source-ledger[hidden] {
    display: none;
}

.source-heading {
    margin: 0 0 3px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font: 8px var(--mono);
}

.source-card {
    display: grid;
    padding: 11px 13px;
    grid-template-columns: 34px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    border: 1px solid var(--line);
    background: rgba(114, 223, 209, 0.025);
}

.source-id {
    color: var(--cyan);
    font: 9px var(--mono);
}

.source-card strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    font-weight: 550;
}

.source-card small {
    color: var(--muted);
    font: 8px var(--mono);
}

.source-fields {
    display: flex;
    grid-column: 2 / -1;
    gap: 5px;
    flex-wrap: wrap;
}

.source-fields span {
    padding: 3px 6px;
    color: #aab4a2;
    border: 1px solid #293024;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font: 7px var(--mono);
}

.starter-panel {
    width: min(100%, 920px);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px) 22px;
}

.starter-panel[hidden] {
    display: none;
}

.starter-grid {
    display: grid;
    margin-top: 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.starter-question {
    min-height: 75px;
    padding: 12px;
    color: #bdc6b6;
    border: 1px solid var(--line);
    background: rgba(23, 27, 20, 0.78);
    cursor: pointer;
    text-align: left;
    font-size: 11px;
}

.starter-question:hover {
    color: var(--paper);
    border-color: var(--line-bright);
    transform: translateY(-1px);
}

.status-line {
    min-height: 22px;
    padding: 0 clamp(24px, 5vw, 72px) 5px;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font: 8px var(--mono);
}

.status-line.is-active::before {
    display: inline-block;
    width: 18px;
    height: 1px;
    margin: 0 8px 3px 0;
    content: "";
    background: var(--cyan);
    animation: status-scan 900ms infinite ease-in-out;
}

.composer {
    padding: 13px clamp(24px, 5vw, 72px) 22px;
    border-top: 1px solid var(--line);
    background: rgba(9, 11, 8, 0.86);
    backdrop-filter: blur(18px);
}

.composer > label {
    display: block;
    margin-bottom: 7px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font: 8px var(--mono);
}

.composer-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 92px;
    border: 1px solid var(--line-bright);
    background: var(--panel);
}

.composer-field:focus-within {
    border-color: var(--signal);
    box-shadow: 0 0 0 1px rgba(215, 255, 63, 0.15);
}

textarea {
    width: 100%;
    max-height: 150px;
    padding: 15px 17px;
    resize: none;
    color: var(--paper);
    border: 0;
    outline: 0;
    background: transparent;
    line-height: 1.45;
}

textarea::placeholder {
    color: #6f7868;
}

textarea:disabled {
    cursor: not-allowed;
}

.send-button {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    border: 0;
    background: var(--signal);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font: 650 9px var(--mono);
}

.send-button:disabled {
    color: #62685c;
    background: #252b21;
    cursor: not-allowed;
}

.composer-note {
    display: flex;
    margin-top: 8px;
    gap: 15px;
    justify-content: space-between;
    color: #687061;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font: 7px var(--mono);
}

@keyframes signal-drop {
    from { transform: translateY(0); }
    to { transform: translateY(150vh); }
}

@keyframes message-arrive {
    from { transform: translateY(7px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes status-scan {
    0%, 100% { transform: scaleX(0.35); transform-origin: left; opacity: 0.35; }
    50% { transform: scaleX(1); transform-origin: left; opacity: 1; }
}

@media (max-width: 920px) {
    .chat-header {
        grid-template-columns: 1fr auto;
    }

    .header-context {
        display: none;
    }

    .chat-workspace {
        grid-template-columns: 1fr;
    }

    .history-rail {
        position: fixed;
        z-index: 20;
        inset: 78px auto 0 0;
        width: min(88vw, 330px);
        transform: translateX(-105%);
        box-shadow: 24px 0 80px rgba(0, 0, 0, 0.45);
        transition: transform 180ms ease-out;
    }

    body.history-visible .history-rail {
        transform: translateX(0);
    }

    body.history-visible .conversation-console::after {
        position: fixed;
        z-index: 15;
        inset: 78px 0 0;
        content: "";
        background: rgba(5, 7, 4, 0.78);
        backdrop-filter: blur(2px);
    }

    .icon-button,
    .history-open {
        display: block;
    }

    .icon-button {
        color: var(--muted);
        font-size: 25px;
    }

    .console-header {
        grid-template-columns: 28px minmax(0, 1fr) auto;
    }

    .history-open {
        padding: 0;
        color: var(--muted);
        font-size: 18px;
    }
}

@media (max-width: 680px) {
    .chat-header {
        min-height: 68px;
        padding: 0 16px;
    }

    .chat-workspace {
        height: calc(100vh - 68px);
    }

    .history-rail {
        top: 68px;
    }

    body.history-visible .conversation-console::after {
        top: 68px;
    }

    .back-link {
        font-size: 0;
    }

    .back-link span {
        font-size: 18px;
    }

    .console-header {
        min-height: 91px;
        padding: 17px 17px;
        grid-template-columns: 22px minmax(0, 1fr);
        gap: 12px;
    }

    .console-title h2 {
        font-size: 23px;
    }

    .domain-readout {
        display: none;
    }

    .scope-banner {
        padding-inline: 17px;
    }

    .transcript {
        padding: 24px 17px 18px;
    }

    .message {
        grid-template-columns: 52px minmax(0, 1fr);
        gap: 10px;
    }

    .message-body {
        font-size: 15px;
    }

    .source-card {
        grid-template-columns: 30px minmax(0, 1fr);
    }

    .source-card small {
        display: none;
    }

    .source-fields {
        grid-column: 1 / -1;
    }

    .starter-panel {
        padding-inline: 17px;
    }

    .starter-grid {
        grid-template-columns: 1fr;
    }

    .status-line {
        padding-inline: 17px;
    }

    .composer {
        padding: 11px 12px 15px;
    }

    .composer-field {
        grid-template-columns: minmax(0, 1fr) 63px;
    }

    .send-button span:first-child {
        display: none;
    }

    .composer-note span:nth-child(2) {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}