:root {
    --bg: #0f1115;
    --surface: #171a20;
    --surface-2: #1d2129;
    --surface-3: #232832;
    --border: #303743;
    --border-strong: #46505f;
    --text: #edf0f4;
    --text-soft: #aeb6c2;
    --muted: #7f8997;
    --accent: #8cb6d8;
    --accent-strong: #b8d8f0;
    --danger: #df8e8e;
    --radius: 12px;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.24);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    padding: 30px;
    color: var(--text);
    background:
        radial-gradient(circle at 14% 0%, rgba(140, 182, 216, 0.08), transparent 28rem),
        var(--bg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

button,
input,
select {
    font: inherit;
}

button {
    min-height: 38px;
    padding: 8px 13px;
    color: #10141a;
    background: var(--accent-strong);
    border: 1px solid var(--accent-strong);
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

button:hover:not(:disabled) {
    transform: translateY(-1px);
    background: #d0e7f8;
}

button:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

button.secondary {
    color: var(--text);
    background: transparent;
    border-color: var(--border-strong);
}

button.secondary:hover:not(:disabled) {
    background: var(--surface-3);
    border-color: #627083;
}

input,
select {
    min-height: 38px;
    padding: 8px 10px;
    color: var(--text);
    background: #11141a;
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
}

input:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(140, 182, 216, 0.12);
}

.container {
    width: min(1500px, 100%);
    margin: 0 auto;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
    padding: 0 2px 18px;
    border-bottom: 1px solid var(--border);
}

header h1,
.section-header h2,
.sidebar-card h2,
.dataset-info h2 {
    margin: 0;
    letter-spacing: -0.035em;
}

header h1 {
    margin-top: 2px;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.header-buttons,
.upload-actions,
.control-buttons,
.search-controls,
.dialog-actions {
    display: flex;
    align-items: center;
    gap: 9px;
}

.label {
    margin: 0 0 5px;
    color: var(--muted);
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 0.69rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.muted,
.small {
    color: var(--text-soft);
}

.small {
    font-size: 0.82rem;
}

.card {
    background: linear-gradient(180deg, rgba(255,255,255,0.012), rgba(255,255,255,0)), var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.upload-section {
    max-width: 760px;
    margin: 8vh auto 0;
}

.drop-zone {
    padding: 70px 34px;
    text-align: center;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    transition: border-color 140ms ease, background 140ms ease;
}

.drop-zone.dragging {
    background: rgba(140, 182, 216, 0.08);
    border-color: var(--accent);
}

.drop-zone h2 {
    margin: 0 0 8px;
    font-size: clamp(1.6rem, 3vw, 2.35rem);
    letter-spacing: -0.04em;
}

.drop-zone > p {
    margin: 0 auto 24px;
    color: var(--text-soft);
}

.drop-zone .small {
    margin: 18px 0 0;
}

.upload-actions {
    justify-content: center;
    flex-wrap: wrap;
}

#workspace {
    display: block;
}

#workspace[hidden],
#uploadSection[hidden] {
    display: none;
}

.dataset-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 16px;
    padding: 20px 22px;
}

.dataset-info h2 {
    font-size: 1.35rem;
}

.dataset-info p {
    margin-bottom: 0;
}

.metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.metric {
    min-width: 105px;
    padding: 10px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 9px;
}

.metric strong,
.metric span {
    display: block;
}

.metric strong {
    font-size: 1.05rem;
}

.metric span {
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 16px;
    padding: 14px;
}

.search-controls {
    min-width: 0;
    flex: 1;
}

.search-controls select {
    width: 180px;
}

.search-controls input {
    width: min(620px, 100%);
    flex: 1;
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 16px;
    align-items: start;
}

.table-section {
    min-width: 0;
    overflow: hidden;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 20px 14px;
}

.section-header h2 {
    font-size: 1.2rem;
}

.table-container {
    width: 100%;
    overflow: auto;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    font-size: 0.82rem;
}

th,
td {
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid #282e38;
}

th {
    position: sticky;
    top: 0;
    z-index: 2;
    color: #dfe5ec;
    background: #171b22;
    white-space: nowrap;
}

tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.012);
}

tbody tr:hover {
    background: rgba(140, 182, 216, 0.07);
}

th button {
    min-height: 0;
    padding: 0;
    color: inherit;
    background: transparent;
    border: 0;
    border-radius: 0;
    font-weight: 800;
}

th button:hover:not(:disabled) {
    transform: none;
    color: var(--accent-strong);
    background: transparent;
}

.actions {
    white-space: nowrap;
}

.action-button {
    min-height: 30px;
    margin-right: 4px;
    padding: 4px 7px;
    font-size: 0.74rem;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 18px 16px;
    color: var(--text-soft);
}

aside {
    display: grid;
    gap: 16px;
}

.sidebar-card {
    padding: 18px;
    box-shadow: none;
}

.sidebar-card h2 {
    margin-bottom: 12px;
    font-size: 1.16rem;
}

.sidebar-card label,
.profile-field-label {
    display: grid;
    gap: 6px;
    margin: 12px 0;
    color: var(--text-soft);
    font-size: 0.79rem;
    font-weight: 650;
}

.sidebar-card select,
.sidebar-card input,
.sidebar-card button {
    width: 100%;
}

#statistics,
#benchmarkResults {
    margin-top: 14px;
}

.stat {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    padding: 8px 0;
    border-bottom: 1px solid #2b313b;
}

.stat:last-child {
    border-bottom: 0;
}

.stat strong {
    color: var(--text);
}

dialog {
    width: min(680px, calc(100vw - 30px));
    max-height: 86vh;
    overflow: auto;
    padding: 0;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.7);
}

#recordForm {
    padding: 20px;
}

.dialog-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.dialog-header h2 {
    margin: 0;
}

.icon-button {
    min-width: 38px;
    padding: 5px;
    color: var(--text);
    background: transparent;
    border-color: var(--border);
    font-size: 1.2rem;
}

#recordFields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px;
    padding: 18px 0;
}

#recordFields label {
    display: grid;
    gap: 6px;
    color: var(--text-soft);
    font-size: 0.79rem;
}

#recordFields input {
    width: 100%;
}

.dialog-actions {
    justify-content: flex-end;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.toast {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 1000;
    max-width: 420px;
    padding: 12px 14px;
    color: #0f151a;
    background: #b8d8f0;
    border-radius: 9px;
    box-shadow: var(--shadow);
    font-weight: 700;
}

.toast.error {
    background: var(--danger);
}

@media (max-width: 1040px) {
    body {
        padding: 20px;
    }

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

    aside {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    body {
        padding: 14px;
    }

    header,
    .dataset-info,
    .controls {
        align-items: stretch;
        flex-direction: column;
    }

    .header-buttons,
    .control-buttons {
        flex-wrap: wrap;
    }

    .search-controls {
        flex-direction: column;
    }

    .search-controls select,
    .search-controls input {
        width: 100%;
    }

    aside {
        grid-template-columns: 1fr;
    }

    #recordFields {
        grid-template-columns: 1fr;
    }

    .drop-zone {
        padding: 48px 20px;
    }
}


.profile-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.profile-stat {
    padding: 10px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.profile-stat span,
.profile-stat strong {
    display: block;
}

.profile-stat span {
    margin-bottom: 3px;
    color: var(--muted);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.profile-stat strong {
    color: var(--text);
    font-size: 0.96rem;
}

.numeric-profile {
    margin-top: 8px;
}