:root {
    --bg: #07111d;
    --bg-deep: #040a12;
    --panel: #0d1926;
    --panel-raised: #122131;
    --line: #293748;
    --line-gold: #80683f;
    --text: #f4f6f8;
    --muted: #aab8c9;
    --gold: #e3bd6c;
    --gold-bright: #f4d189;
    --gold-dark: #9b6d2c;
    --cyan: #45d8c0;
    --danger: #ff8d86;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
    font-family: "Segoe UI", "Microsoft YaHei UI", sans-serif;
    color-scheme: dark;
}

/* Keep the complete category tree in normal document flow. A sticky sidebar
   taller than a short browser viewport can make its last entries unreachable. */
.market-sidebar {
    position: static;
}
* {
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    min-width: 320px;
    min-height: 100%;
    background: var(--bg-deep);
    color: var(--text);
}
body {
    font-size: 16px;
    line-height: 1.55;
    background:
        radial-gradient(circle at 78% 18%, rgba(24, 61, 82, 0.35), transparent 30%),
        linear-gradient(135deg, #081522 0, #06101a 56%, #091827 100%);
}
button,
input,
select {
    font: inherit;
}
.hidden {
    display: none !important;
}
.app-shell {
    min-height: 100vh;
    overflow-x: hidden;
}
.topbar {
    height: 82px;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 0 clamp(24px, 4vw, 64px);
    border-bottom: 1px solid rgba(227, 189, 108, 0.25);
    background: rgba(5, 13, 22, 0.94);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}
.brand {
    display: flex;
    align-items: center;
    gap: 13px;
    color: var(--text);
    text-decoration: none;
    min-width: max-content;
}
.brand img {
    width: 50px;
    height: 50px;
    border-radius: 12px;
}
.brand span {
    display: flex;
    flex-direction: column;
}
.brand strong {
    font-size: 27px;
    line-height: 1;
    letter-spacing: 0.045em;
}
.brand small {
    font-size: 13px;
    color: var(--gold);
    margin-top: 6px;
}
.build-label {
    margin: 0 auto;
    color: #b9c7d8;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.04em;
}
.connection-badge {
    display: flex;
    align-items: center;
    gap: 9px;
    color: #c5d0dc;
    font-size: 14px;
    white-space: nowrap;
    padding: 9px 12px;
    border: 1px solid var(--line);
    background: #0a1520;
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--muted);
}
.connection-badge.secure .status-dot {
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(69, 216, 192, 0.75);
}
.connection-badge.preview .status-dot {
    background: var(--gold);
}
.eyebrow {
    margin: 0 0 12px;
    color: var(--gold);
    font-size: 13px;
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: 0.17em;
}
.surface {
    border: 1px solid var(--line);
    background: linear-gradient(145deg, rgba(17, 31, 45, 0.98), rgba(9, 19, 30, 0.98));
    box-shadow: var(--shadow);
}
.login-layout {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: calc(100vh - 84px);
    width: min(1600px, 100%);
    margin: auto;
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(380px, 520px);
    align-items: center;
    gap: clamp(42px, 7vw, 112px);
    padding: clamp(32px, 5.5vh, 72px) clamp(28px, 6vw, 96px);
}
.login-layout::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background: repeating-linear-gradient(
        108deg,
        transparent 0,
        transparent 104px,
        rgba(144, 174, 202, 0.055) 105px,
        transparent 106px
    );
}
.login-layout::after {
    content: "";
    position: absolute;
    right: -10%;
    bottom: -40%;
    z-index: -1;
    width: 55vw;
    height: 55vw;
    border-radius: 50%;
    border: 1px solid rgba(227, 189, 108, 0.12);
}
.hero {
    position: relative;
    min-width: 0;
}
.hero-copy {
    position: relative;
    z-index: 1;
    max-width: 850px;
}
.hero h1 {
    margin: 0;
    color: #fff;
    font-family: Impact, "Microsoft YaHei UI", sans-serif;
    font-size: clamp(54px, 5.4vw, 86px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: 0.035em;
    white-space: nowrap;
    text-shadow: 0 5px 28px rgba(0, 0, 0, 0.4);
}
.hero-lead {
    max-width: 680px;
    margin: 25px 0 34px;
    color: #c1cede;
    font-size: clamp(17px, 1.4vw, 21px);
}
.hero-emblem {
    position: absolute;
    z-index: 0;
    right: -3%;
    top: 50%;
    width: min(32vw, 430px);
    opacity: 0.075;
    filter: grayscale(0.2);
    transform: translateY(-50%) scale(1.45);
    pointer-events: none;
}
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 760px;
}
.feature-list > div {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    padding: 14px 13px;
    border-top: 1px solid rgba(227, 189, 108, 0.42);
    background: rgba(8, 18, 28, 0.55);
}
.feature-list b {
    color: var(--gold);
    font: 700 15px Georgia;
}
.feature-list span,
.feature-list strong,
.feature-list small {
    display: block;
}
.feature-list strong {
    font-size: 15px;
}
.feature-list small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 13px;
}
.login-panel {
    padding: clamp(30px, 4vw, 48px);
}
.login-panel h2,
.trade-panel h2,
.history-panel h2 {
    margin: 0;
    font:
        600 32px/1.15 Georgia,
        "Microsoft YaHei UI",
        serif;
}
.panel-intro {
    margin: 14px 0 27px;
    color: var(--muted);
    font-size: 15px;
}
.login-panel label,
.trade-form label,
.search-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin: 0 0 17px;
    color: #ced7e1;
    font-size: 14px;
    font-weight: 600;
}
input,
select {
    width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid #354659;
    border-radius: 0;
    background: #07121e;
    color: var(--text);
    outline: none;
}
input:hover,
select:hover {
    border-color: #52667b;
}
input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--gold-bright);
    outline-offset: 3px;
}
.button {
    min-height: 44px;
    padding: 10px 18px;
    border: 1px solid transparent;
    font-weight: 800;
    cursor: pointer;
    transition:
        filter 0.15s,
        transform 0.15s,
        border-color 0.15s;
}
.button:hover:not(:disabled) {
    filter: brightness(1.08);
    transform: translateY(-1px);
}
.button:disabled {
    cursor: not-allowed;
    opacity: 0.42;
    filter: grayscale(0.55);
}
.button-primary {
    color: #101316;
    background: linear-gradient(135deg, var(--gold-bright), #bd8435);
    border-color: #edc76f;
}
.button-quiet {
    color: #d9e1e9;
    background: #0b1723;
    border-color: #39485a;
}
.button-wide {
    width: 100%;
    margin-top: 8px;
}
.privacy-note {
    margin: 15px 0 0;
    color: #93a4b7;
    font-size: 14px;
}
.message {
    min-height: 24px;
    margin: 13px 0 0;
    font-weight: 700;
}
.message-error {
    color: var(--danger);
}
.message-success {
    color: var(--cyan);
}
.market-layout {
    width: min(1680px, 100%);
    margin: auto;
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 26px;
    padding: 26px clamp(22px, 3vw, 44px) 50px;
}
.market-sidebar {
    position: sticky;
    top: 108px;
    align-self: start;
    min-height: calc(100vh - 134px);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
}
.market-sidebar h2 {
    margin: 0 0 18px;
    font-size: 27px;
}
.balance-card {
    padding: 16px;
    border: 1px solid var(--line-gold);
    background: linear-gradient(120deg, rgba(227, 189, 108, 0.1), transparent);
}
.balance-card span,
.balance-card strong {
    display: block;
}
.balance-card span {
    font-size: 13px;
    color: var(--muted);
}
.balance-card strong {
    margin-top: 4px;
    color: var(--gold-bright);
    font-size: 27px;
}
.market-sidebar nav {
    display: grid;
    gap: 7px;
    margin-top: 30px;
}
.nav-button {
    padding: 13px 14px;
    border: 0;
    border-left: 3px solid transparent;
    background: transparent;
    color: var(--muted);
    text-align: left;
    font-weight: 700;
    cursor: pointer;
}
.nav-button:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.035);
}
.nav-active {
    border-left-color: var(--gold);
    color: var(--text);
    background: rgba(227, 189, 108, 0.07);
}
.market-rule {
    margin-top: auto;
    padding-top: 22px;
}
.gold-line {
    display: block;
    width: 44px;
    height: 2px;
    margin-bottom: 15px;
    background: var(--gold);
}
.market-rule p {
    margin: 7px 0 0;
    color: var(--muted);
    font-size: 14px;
}
.market-content {
    min-width: 0;
}
.market-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 26px;
    padding: 15px 0 26px;
}
.market-header h1 {
    margin: 0;
    font:
        600 clamp(39px, 4vw, 57px)/1 Georgia,
        "Microsoft YaHei UI",
        serif;
}
.market-header > div > p:last-child {
    margin: 11px 0 0;
    color: var(--muted);
    font-size: 14px;
}
.search-field {
    width: min(380px, 42%);
    margin: 0;
}
.catalog-state {
    margin-bottom: 15px;
}
.state-panel {
    display: grid;
    place-items: center;
    min-height: 220px;
    padding: 34px;
    border: 1px dashed #405165;
    background: rgba(9, 20, 31, 0.72);
    text-align: center;
}
.state-panel strong {
    font-size: 20px;
}
.state-panel p {
    margin: 8px 0 0;
    color: var(--muted);
}
.loading-bar {
    width: min(280px, 80%);
    height: 3px;
    margin-top: 24px;
    overflow: hidden;
    background: #233244;
}
.loading-bar::after {
    content: "";
    display: block;
    width: 45%;
    height: 100%;
    background: var(--gold);
    animation: loading 1.2s infinite ease-in-out;
}
@keyframes loading {
    from {
        transform: translateX(-110%);
    }
    to {
        transform: translateX(230%);
    }
}
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}
.item-card {
    display: flex;
    flex-direction: column;
    min-height: 300px;
    padding: 20px;
    border: 1px solid var(--line);
    background: linear-gradient(155deg, #0e1c29, #09141f);
    transition:
        border-color 0.18s,
        transform 0.18s;
}
.item-card:hover {
    transform: translateY(-2px);
    border-color: var(--line-gold);
}
.item-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: #aebccd;
    font-size: 13px;
}
.item-category {
    color: var(--gold);
    font-weight: 800;
}
.item-card h3 {
    margin: 11px 0 17px;
    font:
        600 21px/1.25 Georgia,
        "Microsoft YaHei UI",
        serif;
}
.price-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}
.price-block {
    padding: 11px;
    background: #07111b;
    border: 1px solid #202f40;
}
.price-block span,
.price-block strong {
    display: block;
}
.price-block span {
    color: var(--muted);
    font-size: 12px;
}
.price-block strong {
    margin-top: 3px;
    color: var(--gold-bright);
    font-size: 21px;
}
.stock-state {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 15px 0 8px;
    color: #bdc9d5;
    font-size: 13px;
}
.stock-state::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--gold);
}
.snapshot-time {
    margin: 0 0 16px;
    color: #8fa0b2;
    font-size: 12px;
}
.item-actions {
    display: flex;
    gap: 8px;
    margin-top: auto;
}
.item-actions .button {
    flex: 1;
}
.trade-panel,
.history-panel {
    margin-top: 24px;
    padding: 27px;
}
.trade-heading,
.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 20px;
}
.icon-button {
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    background: #0a1621;
    color: var(--text);
    font-size: 27px;
    line-height: 1;
    cursor: pointer;
}
.trade-form {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: end;
    gap: 13px;
    margin-top: 24px;
}
.trade-form label {
    margin: 0;
}
.trade-actions {
    display: flex;
    align-items: end;
}
.trade-actions .button {
    width: 100%;
}
.inventory-picker {
    grid-column: 1/-1;
    margin: 0;
    padding: 17px;
    border: 1px solid #3a4c60;
}
.inventory-picker legend {
    padding: 0 8px;
    color: var(--gold);
    font-weight: 800;
}
.inventory-picker > p {
    margin: 0 0 12px;
    color: var(--muted);
}
#inventory-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 8px;
}
.inventory-option {
    position: relative;
}
.inventory-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.inventory-option label {
    display: block;
    margin: 0;
    padding: 12px;
    border: 1px solid #354659;
    background: #07121d;
    cursor: pointer;
}
.inventory-option label strong,
.inventory-option label small {
    display: block;
}
.inventory-option label small {
    margin-top: 3px;
    color: var(--muted);
}
.inventory-option input:checked + label {
    border-color: var(--gold);
    background: rgba(227, 189, 108, 0.09);
}
.inventory-option input:focus-visible + label {
    outline: 3px solid var(--gold-bright);
    outline-offset: 2px;
}
.quote-result {
    margin-top: 24px;
    padding-top: 21px;
    border-top: 1px solid var(--line-gold);
}
.quote-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 9px;
}
.quote-summary > div {
    padding: 12px;
    border: 1px solid #28394b;
    background: #08131e;
}
.quote-summary span,
.quote-summary strong {
    display: block;
}
.quote-summary span {
    color: var(--muted);
    font-size: 12px;
}
.quote-summary strong {
    margin-top: 3px;
    font-size: 20px;
}
.quote-summary .quote-total {
    border-color: var(--line-gold);
}
.quote-summary .quote-total strong {
    color: var(--gold-bright);
}
.quote-impact {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    margin-top: 14px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.025);
}
.quote-impact p {
    margin: 0;
}
.quote-impact p:last-child {
    white-space: nowrap;
}
.quote-impact span {
    margin: 0 9px;
    color: var(--gold);
}
.quote-confirm {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 18px;
    margin-top: 16px;
}
.quote-confirm p {
    margin: 0;
    color: #d2dae2;
    font-weight: 700;
}
.quote-confirm.expired p {
    color: var(--danger);
}
.history-list-empty {
    padding: 40px 0;
    color: var(--muted);
    text-align: center;
}
.history-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 18px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
}
.history-row:first-child {
    margin-top: 19px;
}
.history-row span {
    color: var(--muted);
}
@media (max-width: 1050px) {
    .build-label {
        display: none;
    }
    .login-layout {
        grid-template-columns: minmax(0, 1.15fr) minmax(350px, 440px);
        gap: 36px;
        padding-inline: 34px;
    }
    .hero h1 {
        font-size: clamp(46px, 6vw, 64px);
    }
    .feature-list {
        grid-template-columns: 1fr;
    }
    .feature-list > div:nth-child(3) {
        display: none;
    }
    .market-layout {
        grid-template-columns: 220px minmax(0, 1fr);
    }
    .sidebar-account {
        min-width: 0;
        gap: 8px;
    }
    .sidebar-account img {
        width: 34px;
        height: 34px;
        flex: 0 0 auto;
    }
    .sidebar-account h2 {
        overflow: hidden;
        font-size: 20px;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .catalog-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}
@media (max-width: 760px) {
    .topbar {
        height: 72px;
        padding: 0 18px;
    }
    .brand img {
        width: 42px;
        height: 42px;
    }
    .brand strong {
        font-size: 23px;
    }
    .brand small {
        font-size: 12px;
    }
    .connection-badge {
        margin-left: auto;
    }
    .login-layout {
        min-height: calc(100vh - 72px);
        grid-template-columns: 1fr;
        padding: 32px 20px;
    }
    .hero {
        display: none;
    }
    .login-panel {
        width: min(500px, 100%);
        margin: auto;
    }
    .market-layout {
        grid-template-columns: 1fr;
        padding: 18px;
    }
    .market-sidebar {
        position: static;
        min-height: 0;
    }
    .market-sidebar nav {
        grid-template-columns: 1fr 1fr;
    }
    .market-rule {
        display: none;
    }
    .market-header {
        align-items: stretch;
        flex-direction: column;
    }
    .search-field {
        width: 100%;
    }
    .trade-form {
        grid-template-columns: 1fr 1fr;
    }
    .trade-actions {
        grid-column: 1/-1;
    }
    .quote-summary {
        grid-template-columns: 1fr 1fr;
    }
    .quote-impact {
        align-items: flex-start;
        flex-direction: column;
    }
    .history-row {
        grid-template-columns: 1fr;
    }
    .history-row span {
        display: block;
    }
}
@media (max-width: 520px) {
    .topbar {
        gap: 10px;
    }
    .brand small {
        display: none;
    }
    .connection-badge {
        padding: 7px;
    }
    .connection-badge span:last-child {
        font-size: 12px;
    }
    .market-layout {
        padding: 12px;
    }
    .market-sidebar {
        padding: 20px;
    }
    .catalog-grid {
        grid-template-columns: 1fr;
    }
    .trade-panel,
    .history-panel {
        padding: 20px;
    }
    .trade-form {
        grid-template-columns: 1fr;
    }
    .trade-actions {
        grid-column: auto;
    }
    .quote-summary {
        grid-template-columns: 1fr;
    }
    .quote-confirm {
        align-items: stretch;
        flex-direction: column;
    }
    .quote-confirm .button {
        width: 100%;
    }
}

/* Exchange terminal v4: browser-responsive header, complete taxonomy and rich local previews. */
.topbar {
    min-height: 82px;
    height: auto;
}
.top-nav {
    display: flex;
    align-self: stretch;
    align-items: stretch;
    gap: 2px;
}
.top-nav .nav-button {
    display: grid;
    place-items: center;
    min-width: 92px;
    padding: 0 14px;
    border-left: 0;
    border-bottom: 3px solid transparent;
    text-align: center;
    white-space: nowrap;
}
.top-nav .nav-active {
    border-bottom-color: var(--gold);
}
.connection-badge.online .status-dot {
    background: var(--cyan);
    box-shadow: 0 0 12px rgba(69, 216, 192, 0.75);
}
.connection-badge.offline .status-dot {
    background: #75869a;
    box-shadow: none;
}
.market-sidebar {
    min-height: 0;
}
.sidebar-filters {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}
.category-list {
    max-height: none;
    overflow: visible;
}
.item-visual {
    position: relative;
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    outline: none;
}
.item-visual:focus-visible {
    box-shadow: 0 0 0 2px var(--gold);
}
.item-preview {
    position: fixed;
    z-index: 80;
    top: 50%;
    left: clamp(292px, 23vw, 410px);
    display: none;
    grid-template-columns: minmax(260px, 430px) 220px;
    width: min(690px, calc(100vw - clamp(326px, 26vw, 450px)));
    max-height: calc(100vh - 48px);
    overflow: hidden;
    transform: translateY(-50%);
    border: 1px solid var(--line-gold);
    background: #050b12;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.72);
}
.item-visual:hover .item-preview,
.item-visual:focus .item-preview,
.item-visual:focus-within .item-preview {
    display: grid;
}
.item-preview > img {
    width: 100%;
    height: min(680px, calc(100vh - 50px));
    object-fit: contain;
    background: #03070d;
}
.preview-arcane > img {
    height: min(430px, calc(100vh - 50px));
}
.preview-detail {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
    padding: 24px 20px;
    border-left: 1px solid var(--line);
    color: var(--muted);
}
.preview-detail strong {
    color: var(--gold-bright);
    font-size: 21px;
    line-height: 1.35;
}
.preview-detail small {
    color: #c5d0dc;
}
.preview-detail span {
    padding-top: 9px;
    border-top: 1px solid var(--line);
}

@media (max-width: 1540px) {
    .topbar {
        gap: 16px;
        padding-inline: 24px;
    }
    .build-label {
        display: none;
    }
    .account-chip span {
        max-width: 150px;
    }
    .account-chip b,
    .account-chip small {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

@media (max-width: 1100px) {
    .topbar {
        flex-wrap: wrap;
        padding-block: 10px;
    }
    .top-nav {
        order: 3;
        width: 100%;
        height: 44px;
        justify-content: center;
    }
    .top-nav .nav-button {
        flex: 1 1 0;
        max-width: 220px;
    }
    .account-chip {
        margin-left: auto;
    }
    .market-layout {
        grid-template-columns: 230px minmax(0, 1fr);
    }
    .item-preview {
        left: 254px;
        width: min(650px, calc(100vw - 278px));
    }
}

@media (max-width: 900px) {
    .account-chip,
    .connection-badge {
        display: flex;
    }
    .connection-badge {
        margin-left: auto;
    }
    .account-chip {
        margin-left: 0;
    }
    .account-chip img {
        width: 36px;
        height: 36px;
    }
    .item-preview {
        left: 24px;
        width: calc(100vw - 48px);
    }
}

@media (max-width: 760px) {
    .topbar {
        min-height: 72px;
    }
    .market-sidebar > .sidebar-filters {
        display: block;
    }
    .market-sidebar > .sidebar-filters .eyebrow {
        display: block;
    }
    .category-list {
        grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    }
    .item-preview {
        grid-template-columns: minmax(0, 1fr);
        overflow: auto;
    }
    .item-preview > img,
    .preview-arcane > img {
        height: auto;
        max-height: calc(100vh - 190px);
    }
    .preview-detail {
        border-top: 1px solid var(--line);
        border-left: 0;
        padding: 15px;
    }
}

@media (max-width: 620px) {
    .connection-badge span:last-child,
    .account-chip span {
        display: none;
    }
    .topbar .button-quiet {
        padding-inline: 10px;
    }
}
@media (max-height: 620px) and (min-width: 821px) {
    .topbar {
        height: 68px;
    }
    .login-layout {
        min-height: calc(100vh - 68px);
        padding-block: 24px;
    }
    .hero h1 {
        font-size: clamp(42px, 5vw, 64px);
    }
    .hero-lead {
        margin: 16px 0 21px;
    }
    .feature-list > div {
        padding-block: 9px;
    }
    .login-panel {
        padding-block: 25px;
    }
    .panel-intro {
        margin-bottom: 17px;
    }
    .login-panel label {
        margin-top: 0;
    }
    .login-panel input {
        min-height: 40px;
    }
    .privacy-note {
        display: none;
    }
}
@media (max-height: 520px) and (min-width: 821px) {
    .topbar {
        height: 60px;
    }
    .brand img {
        width: 38px;
        height: 38px;
    }
    .brand small,
    .panel-intro,
    .privacy-note {
        display: none;
    }
    .login-layout {
        min-height: calc(100vh - 61px);
        padding-block: 12px;
    }
    .hero h1 {
        font-size: 42px;
    }
    .hero-lead {
        margin: 12px 0 16px;
        font-size: 16px;
    }
    .feature-list > div {
        padding-block: 7px;
    }
    .login-panel {
        padding: 18px 24px;
    }
    .login-panel h2 {
        font-size: 27px;
    }
    .login-panel .eyebrow {
        margin-bottom: 6px;
    }
    .login-panel label {
        gap: 3px;
        margin-bottom: 8px;
    }
    .login-panel input {
        min-height: 36px;
        padding-block: 6px;
    }
    .login-panel .button {
        min-height: 38px;
        padding-block: 7px;
    }
    .login-panel .message {
        min-height: 0;
        margin: 0;
    }
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition: none !important;
    }
}

/* Exchange terminal v3: high-density market list and local account chrome. */
.account-chip,
.sidebar-account {
    display: flex;
    align-items: center;
    gap: 10px;
}
.account-chip img,
.sidebar-account img {
    width: 42px;
    height: 42px;
    object-fit: cover;
    border: 1px solid var(--line-gold);
    background: #091522;
}
.account-chip span,
.account-chip b,
.account-chip small {
    display: block;
}
.account-chip small {
    color: var(--gold);
    font-size: 12px;
}
.sidebar-account h2 {
    margin: 0;
}
.sidebar-filters {
    margin-top: 24px;
    border-top: 1px solid var(--line);
    padding-top: 18px;
}
.sidebar-filters h3 {
    margin: 13px 0 8px;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.segmented {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
}
.segmented button,
.category-list button,
.pagination button,
.suggestions button {
    border: 1px solid var(--line);
    background: #091522;
    color: var(--muted);
    cursor: pointer;
}
.segmented button {
    padding: 7px 4px;
    font-size: 12px;
}
.category-list {
    display: grid;
    gap: 3px;
    max-height: 300px;
    overflow: auto;
}
.category-list button {
    display: flex;
    justify-content: space-between;
    padding: 7px 9px;
    text-align: left;
}
.category-list b {
    color: var(--gold);
}
.segmented .filter-active,
.category-list .filter-active {
    border-color: var(--line-gold);
    background: rgba(227, 189, 108, 0.12);
    color: var(--text);
}
.market-tools {
    position: relative;
    display: flex;
    align-items: end;
    gap: 10px;
    width: min(620px, 55%);
}
.market-tools .search-field {
    width: 100%;
}
.compact-field {
    display: grid;
    gap: 7px;
    min-width: 118px;
    color: #ced7e1;
    font-size: 14px;
    font-weight: 600;
}
.suggestions {
    position: absolute;
    z-index: 20;
    top: calc(100% + 4px);
    left: 0;
    right: 128px;
    display: grid;
    padding: 5px;
    border: 1px solid var(--line-gold);
    background: #07121e;
    box-shadow: var(--shadow);
}
.suggestions button {
    padding: 10px;
    border: 0;
    text-align: left;
}
.suggestions button:hover,
.suggestions button:focus {
    background: #142638;
    color: var(--text);
}
.catalog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
}
.market-row {
    display: grid;
    grid-template-columns: 58px minmax(220px, 1fr) 62px 190px 155px 146px;
    align-items: center;
    gap: 14px;
    min-height: 88px;
    padding: 10px 13px;
    border: 1px solid var(--line);
    background: linear-gradient(100deg, #0d1a27, #09141f);
}
.market-row:hover {
    border-color: var(--line-gold);
    background: #102131;
}
.item-image {
    width: 52px;
    height: 52px;
    object-fit: contain;
    border: 1px solid #2c3c4d;
    background: #07111c;
}
.item-identity {
    min-width: 0;
}
.item-identity h3,
.item-identity p {
    overflow: hidden;
    margin: 0;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.item-identity h3 {
    font-size: 17px;
}
.item-identity p {
    color: var(--muted);
    font-size: 12px;
}
.tag-list {
    display: flex;
    gap: 4px;
    margin-top: 6px;
    overflow: hidden;
}
.tag-list span {
    padding: 1px 5px;
    border: 1px solid #354659;
    color: #aebdcd;
    font-size: 10px;
    white-space: nowrap;
}
.owned-cell,
.row-prices > div,
.market-cell {
    display: grid;
}
.owned-cell span,
.row-prices span,
.market-cell span,
.market-cell small {
    color: var(--muted);
    font-size: 11px;
}
.owned-cell strong {
    color: var(--gold-bright);
    font-size: 22px;
}
.row-prices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
}
.row-prices strong {
    font-size: 17px;
}
.market-cell strong {
    font-size: 15px;
}
.trend-up {
    color: #ff8d86;
}
.trend-down {
    color: var(--cyan);
}
.trend-new,
.trend-flat {
    color: var(--gold);
}
.row-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.row-actions .button {
    min-height: 38px;
    padding: 7px 10px;
}
.pagination {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 18px 0;
    color: var(--muted);
}
.pagination button {
    padding: 8px 13px;
}
.page-size-field {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-right: auto;
    white-space: nowrap;
}
.page-size-field select {
    min-width: 76px;
}
.pagination button:disabled {
    opacity: 0.4;
}

@media (max-width: 1320px) {
    .market-row {
        grid-template-columns: 52px minmax(190px, 1fr) 52px 170px 135px;
    }
    .market-row .row-actions {
        grid-column: 2 / -1;
    }
    .market-tools {
        width: 58%;
    }
    .build-label {
        display: none;
    }
}
@media (max-width: 900px) {
    .account-chip,
    .connection-badge {
        display: none;
    }
    .market-tools,
    .search-field {
        width: 100%;
    }
    .market-tools {
        align-items: stretch;
        display: grid;
        grid-template-columns: minmax(0, 1fr) 148px;
    }
    .suggestions {
        right: 0;
    }
    .market-row {
        grid-template-columns: 52px 1fr 54px;
        gap: 9px;
    }
    .market-row .row-prices,
    .market-row .market-cell,
    .market-row .row-actions {
        grid-column: 1 / -1;
    }
    .market-row .row-actions {
        grid-template-columns: 1fr 1fr;
    }
    .market-header {
        align-items: stretch;
        flex-direction: column;
    }
}
@media (max-width: 760px) {
    .market-sidebar {
        display: grid;
        gap: 12px;
        padding: 16px;
    }
    .market-sidebar > div:first-child {
        display: grid;
        grid-template-columns: minmax(180px, 1fr) minmax(220px, 1fr);
        align-items: center;
        gap: 14px;
    }
    .market-sidebar > div:first-child > .eyebrow {
        display: none;
    }
    .market-sidebar nav {
        grid-template-columns: repeat(3, 1fr);
        margin-top: 0;
    }
    .market-sidebar .nav-button {
        border-bottom: 2px solid transparent;
        border-left: 0;
        text-align: center;
    }
    .market-sidebar .nav-active {
        border-bottom-color: var(--gold);
    }
    .sidebar-filters {
        display: grid;
        grid-template-columns: 230px minmax(0, 1fr);
        gap: 10px;
        margin-top: 0;
        padding-top: 10px;
    }
    .sidebar-filters h3 {
        display: none;
    }
    .category-list {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        max-height: none;
        overflow: visible;
    }
    .category-list button {
        min-width: 0;
        gap: 4px;
        overflow: hidden;
        padding: 6px 7px;
        white-space: nowrap;
    }
    .market-header {
        padding-top: 4px;
    }
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }
    .page-size-field {
        width: 100%;
        justify-content: flex-end;
    }
}
@media (max-width: 520px) {
    .market-tools,
    .sidebar-filters {
        grid-template-columns: 1fr;
    }
    .category-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Final v4 responsive precedence after the v3 density rules. */
.category-list {
    max-height: none;
    overflow: visible;
}
@media (max-width: 900px) {
    .account-chip,
    .connection-badge {
        display: flex;
    }
    .market-layout {
        grid-template-columns: 1fr;
        padding: 18px;
    }
    .market-sidebar > .sidebar-filters {
        display: block;
    }
    .category-list {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    }
}
@media (max-width: 760px) {
    .market-sidebar > .sidebar-filters {
        display: block;
    }
    .market-sidebar > .sidebar-filters .eyebrow {
        display: block;
    }
    .category-list {
        grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    }
}
@media (max-width: 620px) {
    .connection-badge span:last-child,
    .account-chip span {
        display: none;
    }
}

/* Full category list follows the page instead of becoming a clipped sticky
   column on short browser windows. */
.market-sidebar {
    position: static;
}

.daily-limits { padding: 4px 0 20px; margin-bottom: 20px; border-bottom: 1px solid rgba(190, 158, 92, .22); }
.daily-limits h2 { font-size: 15px; margin: 0 0 16px; }
.quota-row { display: grid; gap: 5px; margin: 13px 0; }
.quota-row > span, .quota-note { color: #9ba6ad; font-size: 12px; }
.quota-row strong { font-variant-numeric: tabular-nums; font-size: 23px; color: #e2c78a; }
.quota-row small { font-size: 11px; font-weight: 400; color: #9ba6ad; }
.quota-reset { margin: 17px 0 5px; font-size: 12px; }
.quota-reset time { color: #e2c78a; font-variant-numeric: tabular-nums; margin-left: 6px; }
.quota-note { line-height: 1.5; margin: 0; }

.account-dropdown { position: relative; display: block; padding: 0; }
.account-dropdown.hidden { display: none; }
.account-dropdown summary { display: flex; align-items: center; gap: 10px; cursor: pointer; list-style: none; padding: 8px 12px; }
.account-dropdown summary::-webkit-details-marker { display: none; }
.account-menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 40; width: 230px; padding: 8px; background: #151d25; border: 1px solid #52606a; border-radius: 12px; box-shadow: 0 12px 40px #0008; }
.account-menu button { display: flex; justify-content: space-between; width: 100%; padding: 13px; border: 0; border-radius: 6px; background: transparent; color: #e4e9eb; cursor: pointer; text-align: left; }
.account-menu button:hover, .account-menu button:focus-visible { background: #293642; }
.account-menu small { color: #e2c78a; }
.account-menu .hidden { display: none; }
.account-danger { color: #ffb0a6 !important; }
.account-dialog { width: min(520px, calc(100vw - 32px)); max-height: calc(100vh - 48px); overflow: auto; background: #151d25; color: #e4e9eb; border: 1px solid #697073; border-radius: 16px; padding: 26px; }
.account-dialog::backdrop { background: #000b; }
.account-dialog-heading, .account-dialog-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.account-dialog-heading h2 { margin: 0; }
.account-dialog-heading button { border: 0; color: #e4e9eb; background: transparent; font-size: 28px; cursor: pointer; }
.account-dialog p { color: #b6c1c8; font-size: 14px; line-height: 1.8; }
.account-dialog label { display: grid; gap: 8px; margin-top: 16px; font-size: 14px; }
.account-dialog label.hidden { display: none; }
.account-dialog input { width: 100%; padding: 12px; border: 1px solid #586570; border-radius: 8px; background: #0c141c; color: #eef2f4; }
.account-dialog #account-error { color: #ffb0a6; min-height: 24px; }
.account-dialog-actions { justify-content: flex-end; }
.account-dialog .button.account-danger { background: #a83535; border-color: #dc7373; color: #fff !important; }