:root {
    --bg: #f6f3ee;
    --paper: #fbf9f4;
    --paper-soft: rgba(255, 253, 248, 0.78);
    --ink: #171513;
    --muted: #6a6259;
    --faint: #948b80;
    --line: rgba(29, 26, 22, 0.12);
    --line-strong: rgba(29, 26, 22, 0.2);
    --accent: #8f5f4d;
    --accent-soft: rgba(143, 95, 77, 0.13);
    --green: #5e8f7a;
    --rust: #b76155;
    --amber: #b68b43;
    --blue: #607d96;
    --slate: #6e7281;
    --violet: #8a749c;
    --shadow: 0 28px 80px rgba(36, 30, 24, 0.08);
}

[data-theme="dark"] {
    --bg: #111315;
    --paper: #181b1f;
    --paper-soft: rgba(27, 30, 34, 0.84);
    --ink: #eee8dd;
    --muted: #b9b0a3;
    --faint: #8f877b;
    --line: rgba(255, 255, 255, 0.09);
    --line-strong: rgba(255, 255, 255, 0.18);
    --accent: #d0aa82;
    --accent-soft: rgba(208, 170, 130, 0.12);
    --green: #79aa94;
    --rust: #cf8177;
    --amber: #cfaa66;
    --blue: #83a2bb;
    --slate: #9ba0ad;
    --violet: #ae96bf;
    --shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background:
        radial-gradient(circle at top, rgba(143, 95, 77, 0.08), transparent 34%),
        linear-gradient(180deg, var(--bg) 0%, var(--paper) 100%);
    font-family: Inter, "Helvetica Neue", "Segoe UI", Arial, sans-serif;
}

[data-theme="dark"] body {
    background:
        radial-gradient(circle at top, rgba(208, 170, 130, 0.09), transparent 34%),
        linear-gradient(180deg, #101214 0%, #090a0c 100%);
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

.atlas-shell {
    width: min(1440px, 100%);
    margin: 0 auto;
    padding: 18px 28px 36px;
}

.top-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 40px;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 650;
}

.nav-home,
.nav-links a,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
}

.nav-home:hover,
.nav-links a:hover {
    color: var(--ink);
}

.nav-home::before {
    content: "⌂";
    margin-right: 8px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.theme-toggle {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper-soft);
    color: var(--ink);
    padding: 0 12px;
    cursor: pointer;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.5fr);
    gap: 32px;
    align-items: end;
    padding: 18px 0 28px;
    border-top: 1px solid var(--line);
}

.kicker,
.panel-label,
.controls span,
.detail-label,
.metric-label {
    margin: 0;
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 750;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

h1 {
    margin: 8px 0 6px;
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: clamp(3rem, 7vw, 5.7rem);
    line-height: 0.94;
    letter-spacing: -0.045em;
}

.subtitle {
    margin: 0;
    max-width: 62ch;
    color: var(--muted);
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: clamp(1.05rem, 1.4vw, 1.35rem);
}

.stat-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.stat {
    padding: 14px 12px;
    border-right: 1px solid var(--line);
}

.stat:nth-child(2n) {
    border-right: 0;
}

.stat strong {
    display: block;
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.6rem;
    line-height: 1;
}

.stat span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.78rem;
}

.controls {
    display: grid;
    grid-template-columns: minmax(220px, 1.4fr) repeat(5, minmax(132px, 1fr));
    gap: 10px;
    align-items: end;
    padding: 14px 0 18px;
    border-top: 1px solid var(--line);
}

.controls label {
    display: grid;
    gap: 7px;
}

.controls input,
.controls select {
    width: 100%;
    min-height: 40px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper-soft);
    color: var(--ink);
    padding: 0 12px;
    outline: none;
}

.controls input:focus,
.controls select:focus,
.review-field:focus,
.note-field:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(310px, 380px);
    gap: 20px;
    align-items: start;
}

.atlas-panel,
.inspector {
    border: 1px solid var(--line);
    background: var(--paper-soft);
    box-shadow: var(--shadow);
}

.atlas-panel {
    min-width: 0;
    padding: 22px;
}

.panel-head {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
}

.panel-head h2 {
    margin: 6px 0 0;
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: clamp(1.55rem, 2.6vw, 2.4rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
}

.panel-meta,
.result-head p:last-child {
    margin: 0;
    color: var(--muted);
    font-size: 0.86rem;
    white-space: nowrap;
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    min-height: 30px;
    margin-bottom: 12px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--muted);
    font-size: 0.82rem;
}

.legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.atlas-stage {
    position: relative;
    min-height: 520px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

#topic-atlas {
    display: block;
    width: 100%;
    height: auto;
    min-height: 520px;
}

.lane-line {
    stroke: var(--line);
    stroke-width: 1;
}

.lane-label {
    fill: var(--muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.repost-node {
    cursor: pointer;
    stroke: var(--paper);
    stroke-width: 1.6;
    opacity: 0.78;
    transition: opacity 140ms ease, r 140ms ease, stroke-width 140ms ease;
}

.repost-node:hover,
.repost-node.active {
    opacity: 1;
    stroke: var(--ink);
    stroke-width: 2.4;
}

.repost-node.dimmed {
    opacity: 0.2;
}

.empty-state {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    text-align: center;
    color: var(--muted);
}

.empty-state p {
    margin: 0 0 4px;
    color: var(--ink);
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.6rem;
}

.result-list-shell {
    padding-top: 18px;
}

.result-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.result-list {
    display: grid;
    max-height: 360px;
    overflow: auto;
    border-top: 1px solid var(--line);
}

.result-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: transparent;
    color: var(--ink);
    padding: 12px 2px;
    text-align: left;
    cursor: pointer;
}

.result-row:hover,
.result-row.active {
    background: var(--accent-soft);
}

.result-title {
    display: block;
    overflow: hidden;
    color: var(--ink);
    font-size: 0.94rem;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-meta {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.79rem;
}

.result-chip {
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    padding: 4px 8px;
    font-size: 0.72rem;
    white-space: nowrap;
}

.inspector {
    position: sticky;
    top: 16px;
    min-height: 620px;
    padding: 22px;
}

.empty-inspector {
    display: grid;
    min-height: 240px;
    align-content: center;
    color: var(--muted);
}

.empty-inspector p {
    margin: 0 0 6px;
    color: var(--ink);
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.5rem;
    line-height: 1.1;
}

.detail-header {
    display: grid;
    gap: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}

.detail-title {
    margin: 0;
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.8rem;
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.detail-author {
    color: var(--muted);
    font-size: 0.92rem;
}

.detail-text {
    margin: 16px 0;
    color: var(--ink);
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.03rem;
    line-height: 1.48;
    white-space: pre-wrap;
}

.detail-links,
.review-grid,
.metric-grid {
    display: grid;
    gap: 10px;
    margin-top: 16px;
}

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

.detail-link,
.bookmark-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    color: var(--ink);
    padding: 0 12px;
    cursor: pointer;
    font-size: 0.86rem;
    font-weight: 700;
}

.detail-link:hover,
.bookmark-button:hover,
.bookmark-button.active {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    padding-top: 16px;
}

.metric strong {
    display: block;
    margin-top: 4px;
    font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
    font-size: 1.25rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 14px;
}

.tag {
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    padding: 4px 8px;
    font-size: 0.73rem;
}

.review-grid {
    border-top: 1px solid var(--line);
    padding-top: 16px;
}

.review-row {
    display: grid;
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
}

.review-field,
.note-field {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    color: var(--ink);
    padding: 9px 10px;
    outline: none;
}

.note-field {
    min-height: 96px;
    resize: vertical;
    line-height: 1.45;
}

@media (max-width: 1120px) {
    .controls {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .search-field {
        grid-column: 1 / -1;
    }

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

    .inspector {
        position: static;
        min-height: 0;
    }
}

@media (max-width: 740px) {
    .atlas-shell {
        padding: 12px 14px 28px;
    }

    .top-nav,
    .nav-links,
    .hero,
    .panel-head,
    .result-head {
        display: grid;
    }

    .nav-links {
        grid-template-columns: repeat(3, auto);
        justify-content: start;
        gap: 12px;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .stat-strip,
    .controls {
        grid-template-columns: 1fr;
    }

    .stat,
    .stat:nth-child(2n) {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

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

    .atlas-panel,
    .inspector {
        padding: 16px;
    }

    .atlas-stage {
        min-height: 400px;
    }

    #topic-atlas {
        min-height: 400px;
    }

    .detail-links,
    .metric-grid,
    .review-row {
        grid-template-columns: 1fr;
    }
}