:root {
    --grey: #444;
    --grey-light: #6b7280;
    --border: #e2e5ea;
    --surface: #f7f8fa;
    --background: #fff;
    --card: #fff;
    --header-bg: rgba(255, 255, 255, 0.85);
    --disabled: #b7bcc4;
    --navy-dark: #0d2438;
    --navy: #1d4e6e;
    --solid-navy: #1d4e6e;
    --accent: #2774ae; /* UCLA blue */
    --max-width: 1120px;
}

html[data-theme="dark"] {
    --grey: #d4dbe3;
    --grey-light: #9daaba;
    --border: #2d3a47;
    --surface: #151f29;
    --background: #0b1219;
    --card: #101923;
    --header-bg: rgba(11, 18, 25, 0.9);
    --disabled: #667482;
    --navy-dark: #f1f5f9;
    --navy: #9bd3f5;
    --accent: #66b8ec;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

html {
    background: var(--background);
}

body {
    font-family: 'Source Sans Pro', sans-serif;
    font-size: 17px;
    font-weight: 300;
    letter-spacing: 0.2px;
    color: var(--grey);
    line-height: 1.65;
    background: var(--background);
    transition: background-color 0.2s ease, color 0.2s ease;
}

p {
    margin: 0 0 1em 0;
}

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

a:hover {
    text-decoration: underline;
}

h1, h2 {
    font-weight: 600;
    color: var(--navy-dark);
    letter-spacing: 0.2px;
}

b, strong {
    font-weight: 600;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/**************************************************/

#header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: var(--header-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    height: 60px;
    flex-wrap: wrap;
}

.nav a, .nav .nav-disabled {
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--grey);
    transition: color 0.2s ease;
}

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

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-left: auto;
    padding: 6px 11px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--grey);
    font: inherit;
    font-size: 0.82em;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.theme-toggle-icon {
    font-size: 1.1em;
    line-height: 1;
}

.nav-disabled {
    color: var(--disabled);
    cursor: default;
}

/**************************************************/

.hero {
    display: flex;
    align-items: flex-start;
    gap: 48px;
    padding: 72px 0 48px 0;
}

.avatar-placeholder {
    flex: 0 0 auto;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: var(--solid-navy);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4em;
    font-weight: 600;
    letter-spacing: 0.05em;
    overflow: hidden;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 12%;
    display: block;
}

.hero-content {
    flex: 1 1 auto;
    min-width: 0;
}

.hero h1 {
    font-size: 2.4em;
    margin: 0 0 8px 0;
    line-height: 1.15;
}

.role {
    font-size: 1.1em;
    color: var(--navy);
    font-weight: 400;
    margin: 0 0 4px 0;
}

.sub-role {
    font-size: 0.95em;
    color: var(--grey-light);
    margin: 0 0 20px 0;
}

.tagline {
    font-size: 1.2em;
    font-style: italic;
    color: var(--navy-dark);
    border-left: 3px solid var(--accent);
    padding-left: 14px;
    margin: 0 0 28px 0;
}

.contact-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.pill {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.9em;
    color: var(--navy);
}

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

.pill.nav-disabled {
    color: var(--disabled);
    border-color: var(--border);
}

.pill.nav-disabled:hover {
    background: none;
    border-color: var(--border);
}

/**************************************************/

.divider {
    max-width: var(--max-width);
    margin: 0 auto;
    border-bottom: 1px solid var(--border);
}

.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 56px 24px;
}

.section h2 {
    font-size: 1.15em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 24px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

.placeholder-note {
    color: var(--grey-light);
    font-style: italic;
}

/**************************************************/
/* Publications, Service, Honors: subtle subheadings, compact lists */

.pub-subheading {
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--grey-light);
    font-weight: 600;
    margin: 28px 0 12px 0;
}

.pub-subheading:first-of-type {
    margin-top: 0;
}

.pub-list {
    list-style: none;
    counter-reset: pub-counter;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.pub-list li {
    counter-increment: pub-counter;
    position: relative;
    padding-left: 26px;
    font-size: 0.92em;
    line-height: 1.6;
    color: var(--grey);
}

.pub-list li::before {
    content: counter(pub-counter) ".";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--grey-light);
    font-weight: 600;
    font-size: 0.9em;
}

.pub-venue {
    color: var(--navy);
    font-weight: 500;
}

.pub-link {
    font-size: 0.85em;
    color: var(--accent);
    margin-left: 2px;
}

.pub-link.disabled {
    color: var(--disabled);
    cursor: default;
}

.pub-scholar {
    margin: 24px 0 0 0;
    font-size: 0.92em;
}

.simple-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.simple-list li {
    position: relative;
    padding-left: 18px;
    font-size: 0.92em;
    color: var(--grey);
}

.simple-list li::before {
    content: "\2022";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/**************************************************/
/* Education: compact 3-column timeline */

.section-compact {
    padding: 32px 24px;
}

.education-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--border);
}

.edu-row {
    display: grid;
    grid-template-columns: 1.3fr 1.7fr auto;
    align-items: baseline;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.edu-institution {
    font-weight: 600;
    color: var(--navy-dark);
    font-size: 0.95em;
}

.edu-institution a {
    color: var(--accent);
}

.edu-degree {
    color: var(--grey);
    font-size: 0.9em;
}

.edu-year {
    color: var(--navy);
    font-size: 0.85em;
    font-weight: 600;
    text-align: right;
    white-space: nowrap;
}

/**************************************************/
/* Shared card elements: badges, tags, buttons, image placeholders */

.badge {
    display: inline-block;
    font-size: 0.68em;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
    white-space: nowrap;
}

.badge-ongoing {
    color: var(--navy);
    border: 1px solid var(--accent);
    background: var(--card);
}

.badge-accepted {
    color: #fff;
    background: var(--solid-navy);
}

.badge-course {
    color: var(--grey-light);
    border: 1px solid var(--border);
    background: var(--surface);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.tag {
    font-size: 0.72em;
    color: var(--grey-light);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2px 9px;
    border-radius: 999px;
}

.highlight-line {
    font-size: 0.85em;
    color: var(--grey-light);
    margin-top: 4px;
}

.highlight-line strong {
    color: var(--navy);
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.btn-link {
    font-size: 0.85em;
    padding: 5px 14px;
    border: 1px solid var(--accent);
    border-radius: 4px;
    color: var(--accent);
    transition: background 0.2s ease;
}

a.btn-link:hover {
    background: var(--surface);
    text-decoration: none;
}

.btn-link.disabled {
    color: var(--disabled);
    border-color: var(--border);
    cursor: default;
}

.img-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--grey-light);
    font-size: 0.8em;
    text-align: center;
}

/* Real project/research figures: natural aspect ratio, no cropping, no fixed height */
.card-image {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
}

/**************************************************/
/* Current Research: large horizontal feature cards */

.feature-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.feature-card {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
}

.feature-media {
    flex: 0 0 320px;
}

/* Widen the media column for extra-wide/short figures (e.g. wide banner diagrams) */
.feature-media.is-wide {
    flex: 0 0 480px;
}

/* Only the "coming soon" mock box needs a fixed height; real images (.card-image) size naturally */
.feature-media .img-placeholder {
    aspect-ratio: auto;
    height: 240px;
}

.feature-body {
    flex: 1;
    min-width: 0;
}

.feature-heading {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
}

.feature-heading h3 {
    margin: 0;
    font-size: 1.25em;
    font-weight: 600;
    color: var(--navy-dark);
}

/**************************************************/
/* Selected Robotics & Learning Projects: compact grid */

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
}

.project-column {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.project-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    overflow: hidden;
}

.project-card .img-placeholder {
    aspect-ratio: 16 / 9;
    border-radius: 0;
    border-width: 0 0 1px 0;
}

/* Real project figures: edge-to-edge, natural aspect ratio, no cropping */
.project-card .card-image {
    border: none;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
}

.project-card-body {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.project-card-body h3 {
    margin: 0;
    font-size: 1.05em;
    font-weight: 600;
    color: var(--navy-dark);
}

.status-line {
    font-size: 0.72em;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--grey-light);
    margin: 0;
}

.project-card-body p {
    font-size: 0.92em;
    margin: 0;
}

.stat-compare {
    margin-top: 8px;
    border-top: 1px solid var(--border);
    padding-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.85em;
}

.stat-label {
    color: var(--grey-light);
}

.stat-value {
    font-weight: 600;
    color: var(--grey);
}

.stat-value.stat-highlight {
    color: var(--navy);
}

/**************************************************/

.footer {
    padding: 32px 24px 48px 24px;
    color: var(--grey-light);
    font-size: 0.85em;
}

.footer p {
    margin: 0;
}

/**************************************************/

@media (max-width: 700px) {
    .hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 48px 0 32px 0;
    }

    .hero-content {
        width: 100%;
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2em;
        overflow-wrap: anywhere;
    }

    .contact-row {
        justify-content: center;
    }

    .tagline {
        text-align: left;
    }

    .nav {
        justify-content: center;
        gap: 10px 14px;
        height: auto;
        padding: 12px 0;
    }

    .nav a,
    .nav .nav-disabled {
        font-size: 0.82em;
    }

    .theme-toggle {
        margin-left: 0;
    }

    .section {
        padding: 40px 24px;
    }

    .section-compact {
        padding: 28px 24px;
    }

    .edu-row {
        grid-template-columns: 1fr;
        gap: 2px;
        padding: 12px 0;
    }

    .edu-year {
        text-align: left;
        color: var(--grey-light);
    }
}

@media (max-width: 800px) {
    .feature-card {
        flex-direction: column;
    }

    .feature-media,
    .feature-media.is-wide {
        flex: none;
    }

    .feature-media .img-placeholder {
        height: 180px;
    }

    .project-grid {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .project-column {
        display: contents;
    }

    .project-card-adaptive {
        order: 1;
    }

    .project-card-vlaps {
        order: 2;
    }

    .project-card-emg {
        order: 3;
    }

    .project-card-obca {
        order: 4;
    }

    .twocol-grid {
        flex-direction: column;
    }

    .stage-row {
        flex-direction: column;
    }

    .figure-pair {
        flex-direction: column;
    }
}

/**************************************************/
/* Research project pages (e.g. projects/paying-for-space.html) */

.research-main .section {
    max-width: 1180px;
}

/* Denser rhythm for long, sectioned project pages. */
.research-main.compact-sections .research-section {
    padding-top: 32px;
    padding-bottom: 32px;
}

.research-main.compact-sections .research-section > .research-figure {
    margin-top: 20px;
    margin-bottom: 20px;
}

/* ISRO experience page */
.isro-hero-section {
    padding-top: 48px;
    padding-bottom: 36px;
}

.isro-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.65fr);
    gap: 48px;
    align-items: center;
}

.isro-hero-copy h1 {
    margin: 10px 0 16px;
    font-size: 2em;
    line-height: 1.25;
}

.isro-hero-lead {
    color: var(--navy);
    font-size: 1.16em;
    font-weight: 400;
    line-height: 1.5;
}

.isro-portrait {
    margin: 0;
    max-width: 390px;
    justify-self: end;
}

.isro-figure-wide {
    max-width: 1060px;
}

.isro-sequence-intro {
    margin-bottom: 20px;
}

.isro-content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.7fr);
    gap: 34px;
    align-items: center;
    margin: 20px 0 30px;
}

.isro-content-grid .research-figure {
    margin: 0 auto;
}

.isro-technical-list {
    margin: 14px 0 26px;
    padding-left: 28px;
}

.isro-technical-list li {
    margin-bottom: 9px;
    padding-left: 4px;
}

.research-figure.isro-flow-figure {
    max-width: 1000px;
    margin-top: 20px;
    margin-bottom: 34px;
}

.isro-component-figure .card-image,
.isro-flow-figure .card-image,
.isro-equation-wide .card-image {
    display: block;
    width: 100%;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.research-figure.isro-equation-wide {
    max-width: 820px;
}

.isro-base-equations.figure-pair {
    justify-content: center;
}

.isro-base-equations.figure-pair .research-figure {
    flex: 0 1 450px;
    max-width: 450px;
}

.isro-base-equations.figure-pair .research-figure.isro-tgo-figure {
    flex-basis: 450px;
    max-width: 450px;
}

.isro-tgo-figure .card-image {
    max-width: 390px;
    margin: 0 auto;
}

.research-figure.isro-equation-compact {
    max-width: 610px;
}

.research-figure.isro-levelset-figure {
    max-width: 520px;
}

.research-figure.isro-projection-figure {
    max-width: 760px;
}

.research-figure.isro-robustness-figure {
    max-width: 400px;
    margin-top: 20px;
    margin-bottom: 26px;
}

.research-figure.isro-classifier-figure {
    max-width: 500px;
}

.isro-guidance-key {
    display: grid;
    gap: 5px;
    margin-top: 10px;
    color: var(--grey-light);
    font-size: 0.8em;
    line-height: 1.25;
}

.isro-guidance-key span {
    display: grid;
    grid-template-columns: 30px 1fr;
    gap: 5px;
}

.isro-guidance-key strong {
    color: var(--accent);
}

.isro-base-equations .equation-figure .card-image,
.isro-equation-wide.equation-figure .card-image {
    border: 0;
}

.caption-nowrap {
    white-space: nowrap;
    font-size: 0.8em;
}

.isro-story-grid,
.isro-analysis-grid {
    margin-top: 28px;
    align-items: center;
}

.isro-story-grid h3,
.isro-analysis-grid h3,
.research-section > h3 {
    color: var(--navy-dark);
    margin: 18px 0 10px;
}

.isro-equation-pair {
    align-items: center;
    margin: 24px 0 30px;
}

.isro-equation-pair .research-figure:first-child {
    flex: 0.8;
}

.isro-equation-pair .research-figure:last-child {
    flex: 1.2;
}

.equation-figure .card-image {
    background: #fff;
    padding: 18px;
    box-sizing: border-box;
}

.isro-opening-figures,
.isro-results-pair {
    margin: 24px 0 30px;
    align-items: center;
}

.isro-opening-figures .card-image {
    max-height: 420px;
    object-fit: contain;
    background: #000;
}

.isro-gnc-flow .stage-card {
    text-align: left;
}

.isro-gnc-foundation,
.isro-boundary-pair {
    margin: 24px 0 30px;
    align-items: center;
}

.isro-gnc-foundation .card-image,
.isro-boundary-pair .card-image {
    max-height: 390px;
    object-fit: contain;
    background: #fff;
}

.slosh-model-pair .research-figure:first-child {
    flex: 0 1 300px;
    max-width: 300px;
}

.slosh-model-pair {
    justify-content: center;
}

.slosh-model-pair .research-figure:last-child {
    flex: 0 1 480px;
    max-width: 480px;
}

.slosh-equation-figure {
    margin: 22px auto 28px;
    max-width: 520px;
}

.slosh-equation-figure .card-image {
    display: block;
    max-width: 370px;
    margin: 0 auto;
}

.isro-mission-row {
    align-items: stretch;
}

.isro-mission-row .stage-card h3 {
    color: var(--navy-dark);
    margin: 2px 0 8px;
}

.isro-publication-list li {
    margin-bottom: 16px;
}

.equal-contribution-note {
    margin-top: 8px;
    color: var(--grey-light);
    font-size: 0.88em;
}

/* Ongoing quadruped soccer research */
.soccer-hero-section {
    padding-top: 48px;
    padding-bottom: 32px;
}

.soccer-hero-section h1 {
    max-width: 920px;
    margin: 8px 0 10px;
    color: var(--navy-dark);
    font-size: 2em;
    line-height: 1.22;
}

.soccer-status-row {
    margin-top: 14px;
}

.soccer-placeholder {
    background: linear-gradient(135deg, var(--surface), var(--card));
}

.feature-media .soccer-card-video {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.soccer-video-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 900px;
    aspect-ratio: 16 / 9;
    margin: 22px auto 0;
    border: 1px dashed var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--grey-light);
    text-align: center;
}

.soccer-training-video {
    display: block;
    width: 100%;
    height: auto;
    max-width: 900px;
    margin: 22px auto 0;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.research-figure.soccer-training-plot {
    max-width: 398px;
    margin: 22px auto 4px;
}

.soccer-training-crop {
    width: 100%;
    aspect-ratio: 398 / 260;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
}

.soccer-training-crop img {
    display: block;
    width: 100%;
    height: auto;
    margin-top: -10.05%;
}

.soccer-training-note {
    max-width: 680px;
    margin: 18px auto 0;
    color: var(--grey-light);
    font-size: 0.86em;
}

.self-play-ladder,
.risk-learning-flow,
.tail-risk-flow {
    margin: 24px auto;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}

.self-play-ladder {
    max-width: 500px;
}

.risk-learning-flow {
    max-width: 680px;
}

.tail-risk-flow {
    max-width: 520px;
}

.risk-outcome-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
}

.risk-tail-column {
    display: grid;
    gap: 4px;
}

.risk-tail-node {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--surface) 78%, var(--accent) 22%);
}

.soccer-compare-node {
    border-style: dashed;
    color: var(--accent);
    font-weight: 600;
}

.soccer-primary-section {
    margin-top: 32px;
    margin-bottom: 32px;
    padding: 38px 32px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: 12px;
    background: linear-gradient(135deg, var(--surface), var(--card));
}

.preliminary-label {
    color: var(--navy-dark);
    font-weight: 600;
}

.soccer-performance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin: 26px 0 30px;
}

.soccer-video-figure {
    margin: 0;
}

.soccer-video-figure .soccer-training-video {
    margin: 8px 0 0;
}

.soccer-video-label {
    color: var(--navy-dark);
    font-size: 0.9em;
    font-weight: 600;
    text-align: center;
}

.soccer-evaluation-note {
    margin-top: 8px;
    color: var(--navy-dark);
    font-weight: 400;
}

.soccer-results-wrap {
    margin: 12px 0 20px;
}

.soccer-results-table {
    min-width: 690px;
}

.soccer-results-table th,
.soccer-results-table td {
    white-space: nowrap;
}

.table-scroll-hint {
    display: none;
    margin: 0 0 6px;
    color: var(--grey-light);
    font-size: 0.78em;
    font-style: italic;
}

.soccer-architecture {
    max-width: 760px;
    margin: 26px auto 6px;
    padding: 26px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}

.soccer-diagram-node {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--navy-dark);
    text-align: center;
    line-height: 1.3;
}

.soccer-diagram-node span {
    display: block;
    margin-top: 3px;
    color: var(--grey-light);
    font-size: 0.78em;
}

.soccer-diagram-primary {
    border-color: var(--accent);
    box-shadow: inset 3px 0 0 var(--accent);
}

.soccer-diagram-arrow {
    padding: 4px;
    color: var(--accent);
    font-size: 1.35em;
    font-weight: 700;
    text-align: center;
}

.soccer-branch-arrow {
    letter-spacing: 2.5em;
    text-indent: 2.5em;
}

.soccer-question-list li {
    margin-bottom: 9px;
}

.soccer-ongoing-callout {
    border-left: 4px solid var(--accent);
}

.soccer-ongoing-callout p {
    margin: 0;
}

.soccer-back-row {
    margin-top: 20px;
}

@media (max-width: 800px) {
    .isro-hero-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .isro-portrait {
        justify-self: center;
        max-width: 420px;
    }

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

    .soccer-hero-section h1 {
        font-size: 1.65em;
    }

    .soccer-architecture {
        padding: 18px;
    }

    .soccer-performance-grid {
        grid-template-columns: 1fr;
    }

    .soccer-primary-section {
        padding: 30px 20px;
    }

    .self-play-ladder,
    .risk-learning-flow,
    .tail-risk-flow {
        padding: 18px;
    }

    .table-scroll-hint {
        display: block;
    }

    .caption-nowrap {
        white-space: normal;
    }
}

.research-abstract {
    max-width: 880px;
    margin: 0 auto;
}

.research-section h2 {
    margin-bottom: 16px;
}

.research-figure {
    max-width: 880px;
    margin: 28px auto;
}

.research-figure.figure-narrow {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.research-figure.figure-xs {
    max-width: 340px;
    margin-left: auto;
    margin-right: auto;
}

.research-figure.figure-medium {
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

.figure-caption {
    font-size: 0.85em;
    color: var(--grey-light);
    font-style: italic;
    text-align: center;
    margin: 10px 0 0 0;
}

.twocol-grid {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.twocol-text,
.twocol-figure {
    flex: 1;
    min-width: 0;
}

.twocol-figure .research-figure {
    margin: 0;
}

.figure-pair {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.figure-pair .research-figure {
    flex: 1 1 320px;
    min-width: 0;
    margin: 0;
}

.stage-row {
    display: flex;
    gap: 20px;
    margin: 24px 0 32px 0;
}

.stage-card {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.stage-number {
    font-size: 0.72em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 8px;
}

.stage-card p {
    margin: 0;
    font-size: 0.92em;
    color: var(--grey);
}

.callout {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
}

.callout h3 {
    margin: 0 0 12px 0;
    font-size: 1em;
    color: var(--navy-dark);
}

.callout ul {
    margin: 0;
    padding-left: 20px;
}

.callout li {
    margin-bottom: 8px;
    font-size: 0.92em;
    color: var(--grey);
}

.callout li:last-child {
    margin-bottom: 0;
}

.results-table-wrap {
    overflow-x: auto;
    margin: 16px 0;
}

.results-table {
    border-collapse: collapse;
    font-size: 0.9em;
    min-width: 420px;
    width: 100%;
}

.results-table caption {
    caption-side: bottom;
    text-align: left;
    color: var(--grey-light);
    font-size: 0.85em;
    padding-top: 8px;
}

.results-table th {
    text-align: right;
    padding: 8px 16px;
    border-bottom: 2px solid var(--accent);
}

.results-table th:first-child,
.results-table td:first-child {
    text-align: left;
    padding-left: 0;
}

.results-table td {
    text-align: right;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
}

.results-table tr:last-child td {
    border-bottom: none;
}

.results-table .highlight {
    font-weight: 600;
    color: var(--navy);
}

/* Keep project-page figures and text within the viewport on phones. */
@media (max-width: 800px) {
    .research-main .twocol-grid,
    .research-main .figure-pair {
        flex-direction: column;
    }

    .research-main .twocol-text,
    .research-main .twocol-figure,
    .research-main .figure-pair .research-figure {
        flex: none;
        width: 100%;
    }
}