:root {
    --accent-color: #1a6b8a;
    --accent-dark: #124e66;
    --nice-gray: rgb(236, 240, 243);
    --main-width: 960px;
    font-size: 1.05em;
    font-family: "Noto Sans Display", "Segoe UI", Arial, sans-serif;
    color: #1a1a1a;
    line-height: 1.65;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0 1em;
    background: #ffffff;
}

main {
    max-width: var(--main-width);
    margin: 0 auto;
    padding: 2em 0 4em;
}

/* ── typography ── */

h1 {
    font-size: 2em;
    font-weight: 700;
    line-height: 1.25;
    text-align: center;
    margin: 1em 0 0.3em;
}

h2 {
    font-size: 1.4em;
    font-weight: 700;
    margin-top: 2em;
}

h3 {
    font-size: 1.15em;
    font-weight: 700;
    margin-top: 1.5em;
}

h4 {
    font-size: 1.0em;
    font-weight: 700;
    margin-top: 1.2em;
    color: var(--accent-dark);
}

p {
    margin: 0.75em 0;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ── layout helpers ── */

.centered {
    text-align: center;
}

.text-sm {
    font-size: 0.85em;
}

/* full-bleed banded section heading */
.banded {
    width: 100vw;
    position: relative;
    left: calc(-50vw + 50%);
    padding: 0.6em 1em;
    text-align: center;
    background-color: var(--nice-gray);
    margin: 2em 0 1em;
    font-size: 1.25em;
}

/* ── venue / conference badge ── */
/* .venue {
    text-align: center;
    font-style: ;
    color: var(--accent-color);
    margin: 0.2em 0 0.8em;
    font-size: 1em;
    letter-spacing: 0.01em;
} */
.venue {
    text-align: center;
    color: #2563eb;
    margin: 0.2em 0 0.8em;
    font-size: 1.1em;
    font-weight: 400;
    font-family: sans-serif;
    letter-spacing: 0.015em;
}

/* ── authors ── */
.authors {
    text-align: center;
    margin: 0.5em 0;
    font-size: 0.95em;
    line-height: 1.8;
}

.affiliations {
    text-align: center;
    color: #555;
    font-size: 0.875em;
    margin: 0.3em 0 1em;
    line-height: 1.7;
}

.equal-contrib {
    text-align: center;
    font-size: 0.8em;
    color: #777;
    margin-bottom: 1.2em;
}

/* ── pill buttons ── */
.button-row {
    text-align: center;
    margin: 1.4em 0 0.5em;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6em;
}

.pill-button {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    padding: 0.45em 1.1em;
    border-radius: 9999px;
    background-color: #1a1a1a;
    color: #ffffff !important;
    font-size: 0.9em;
    font-weight: 600;
    text-decoration: none !important;
    transition: background-color 0.15s;
}

.pill-button:hover {
    background-color: var(--accent-dark);
    text-decoration: none;
}

.pill-button img,
.pill-button svg {
    height: 1.1em;
    width: auto;
    filter: invert(1);
    vertical-align: middle;
}

.pill-button.disabled {
    background-color: #888;
    cursor: default;
    pointer-events: none;
}

/* ── teaser / figure ── */
figure {
    margin: 1.5em 0;
    text-align: center;
}

figure img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

figcaption {
    font-size: 0.875em;
    color: #444;
    margin-top: 0.5em;
    text-align: left;
    line-height: 1.5;
}

/* ── contributions / research-question list ── */
.contributions,
.rq-list {
    padding-left: 1.4em;
}

.contributions li,
.rq-list li {
    margin: 0.6em 0;
}

/* ── inline citation placeholder ── */
.cite {
    font-size: 0.85em;
    color: var(--accent-color);
}

/* ── method components grid ── */
.components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(17ch, 1fr));
    gap: 1em;
    margin: 1em 0;
}

.component-card {
    background: var(--nice-gray);
    border-radius: 6px;
    padding: 0.9em 1em;
}

.component-card h4 {
    margin: 0 0 0.3em;
    font-size: 0.95em;
    color: var(--accent-dark);
}

.component-card p {
    margin: 0;
    font-size: 0.85em;
    color: #333;
}

/* ── figure row (side-by-side figures) ── */
.figure-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1em;
    margin: 1em 0;
}

.figure-row-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

/* narrower row — centers a pair of figures at ~75% of text width */
.figure-row-sm {
    max-width: 75%;
    margin-left: auto;
    margin-right: auto;
}

/* cyano t-SNE (square) + qualitative time-series: 40/60 split */
.figure-row-cyano-qual {
    grid-template-columns: 2fr 3fr;
    align-items: start;
}

.figure-row figure {
    margin: 0;
}

.figure-half {
    margin: 0;
}

.fig-caption-main {
    text-align: center;
    font-size: 0.875em;
    color: #444;
    margin-top: 0;
    margin-bottom: 1em;
}

/* slightly reduced figure — ~65% of text width, centered */
.figure-reduced {
    margin: 1.2em auto;
    text-align: center;
    max-width: 80%;
}

.figure-reduced img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.figure-reduced figcaption {
    font-size: 0.875em;
    color: #444;
    margin-top: 0.5em;
    text-align: left;
    line-height: 1.5;
}

/* narrow centered figure (roughly half text-width) */
.figure-narrow {
    margin: 1.5em auto;
    text-align: center;
    max-width: 52%;
}

.figure-narrow img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.figure-narrow figcaption {
    font-size: 0.875em;
    color: #444;
    margin-top: 0.5em;
    text-align: left;
    line-height: 1.5;
}

/* ── references list ── */
.references {
    padding-left: 1.4em;
    font-size: 0.9em;
    line-height: 1.65;
}

.references li {
    margin: 0.75em 0;
}

@media (max-width: 600px) {
    .figure-row { grid-template-columns: 1fr; }
    .figure-row-3 { grid-template-columns: 1fr; }
}

/* ── results table ── */
table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.88em;
    margin: 1em 0;
    display: inline-block;
    overflow-x: auto;
    white-space: nowrap;
    max-width: 100%;
}

thead th {
    background: var(--nice-gray);
    padding: 0.5em 0.75em;
    text-align: left;
    border-bottom: 2px solid #ccc;
}

tbody td {
    padding: 0.4em 0.75em;
    border-bottom: 1px solid #e5e5e5;
}

tbody tr:hover {
    background-color: var(--nice-gray);
}

tbody tr.highlight {
    font-weight: 700;
    background: #e8f4f8;
}

/* ── BibTeX block ── */
pre.bibtex {
    background: #f5f5f5;
    border-radius: 4px;
    padding: 0.9em 1em;
    font-size: 0.85em;
    overflow-x: auto;
    white-space: pre;
    line-height: 1.4;
    border-left: 3px solid var(--accent-color);
}

/* ── divider ── */
hr {
    border: none;
    border-top: 1px solid #ddd;
    margin: 2em 0;
}

/* ── responsive ── */
@media (max-width: 600px) {
    h1 { font-size: 1.45em; }
    .components { grid-template-columns: 1fr; }
    .pill-button { font-size: 0.82em; padding: 0.4em 0.9em; }
}