@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;600;650;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root {
    --ink: #101e2d;
    --navy: #081824;
    --mint: #65efd3;
    --muted: #6d7880;
    --line: #dbe2e5;
    --soft: #f3f6f6
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px
}

body {
    margin: 0;
    color: var(--ink);
    font-family: 'DM Sans', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.65
}

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

button {
    font: inherit;
    cursor: pointer
}

button, a, summary {
    -webkit-tap-highlight-color: transparent
}

a:focus-visible, button:focus-visible, summary:focus-visible {
    outline: 3px solid #149c85;
    outline-offset: 5px
}

h1, h2, h3, p {
    margin: 0
}

h1, h2, h3, .brand {
    font-family: 'Space Grotesk', Arial, sans-serif
}

h2 {
    font-size: clamp(32px,3.8vw,52px);
    line-height: 1.13;
    letter-spacing: -2px;
    font-weight: 500
}

h3 {
    font-weight: 500;
    line-height: 1.25
}

p {
    color: var(--muted)
}

em {
    font-style: normal;
    color: var(--mint)
}

header {
    height: 94px;
    padding: 0 4.5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--navy);
    color: white;
    position: relative;
    z-index: 10
}

.brand {
    font-size: 35px;
    font-weight: 700;
    letter-spacing: -2px;
    display: flex;
    align-items: center;
    gap: 9px;
    line-height: 1
}

.brand>span {
    color: var(--mint);
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -1px
}

.brand small {
    font: 9px/1.4 'DM Sans', Arial;
    letter-spacing: 1px;
    margin-left: 10px;
    padding-left: 16px;
    border-left: 1px solid #64717a
}

nav {
    display: flex;
    align-items: center;
    gap: 25px;
    font-size: 14px
}

nav a:hover {
    color: var(--mint)
}

.nav-cta {
    border: 1px solid #77858a;
    padding: 10px 16px
}

.hero {
    background: var(--navy);
    color: white;
    min-height: 740px;
    position: relative;
    overflow: hidden
}

.hero video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover
}

.hero-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,rgba(4,17,28,.96),rgba(4,17,28,.7) 40%,rgba(4,17,28,.16)), linear-gradient(0deg,#081824,transparent 60%)
}

.hero-content {
    position: relative;
    padding: 68px 6.5% 170px
}

.eyebrow, .section-label {
    font-size: 12px;
    letter-spacing: 2px;
    font-weight: 600
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #d8ebe6
}

.tiny-line {
    width: 26px;
    height: 2px;
    background: var(--mint)
}

h1 {
    font-size: clamp(55px,6.5vw,94px);
    font-weight: 500;
    line-height: 1.015;
    letter-spacing: -4px;
    margin: 28px 0
}

.hero-content p {
    color: #dce3e7;
    line-height: 1.5;
    font-size: 19px
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-top: 34px
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    background: var(--mint);
    color: var(--navy);
    padding: 15px 23px;
    font-size: 14px;
    font-weight: 600;
    transition: .2s
}

.button:hover {
    background: #99f6e3;
    transform: translateY(-2px)
}

.text-link {
    font-size: 14px;
    border-bottom: 1px solid #84949a;
    padding-bottom: 6px
}

.hero-bottom {
    position: absolute;
    bottom: 0;
    left: 6.5%;
    right: 6.5%;
    border-top: 1px solid #66788066;
    display: grid;
    grid-template-columns: 1fr 1fr 1.2fr;
    padding: 25px 0 28px;
    gap: 30px
}

.hero-bottom small {
    display: block;
    color: var(--mint);
    font-size: 11px;
    letter-spacing: 2px
}

.hero-bottom strong {
    display: block;
    font-size: 21px;
    font-weight: 500
}

.hero-bottom span {
    font-size: 12px;
    color: #b9c6ce
}

.hero-bottom>a {
    align-self: center;
    justify-self: end;
    font-size: 14px
}

.hero-bottom>a span {
    margin-left: 30px;
    font-size: 24px;
    color: var(--mint)
}

.video-caption {
    position: absolute;
    right: 6.5%;
    bottom: 180px;
    font-size: 10px;
    letter-spacing: 2px;
    text-align: right
}

.video-caption span {
    display: block;
    letter-spacing: 0;
    font-size: 12px;
    color: #c6d1d5
}

.video-control {
    position: absolute;
    right: 6.5%;
    bottom: 240px;
    background: #ffffff15;
    border: 1px solid #ffffff65;
    border-radius: 50%;
    width: 42px;
    height: 42px;
    color: white
}

.section-nav {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    padding: 0 6.5%;
    border-bottom: 1px solid var(--line)
}

.section-nav a {
    padding: 24px 0;
    font-size: 14px
}

.section-nav a:hover {
    color: #137d69
}

.section {
    padding: 90px 6.5%;
    scroll-margin-top: 10px
}

.section-label {
    margin-bottom: 24px;
    color: #537079
}

.about {
    display: grid;
    grid-template-columns: 1fr 2.25fr;
    gap: 55px
}

.about .section-label {
    padding-top: 10px
}

.muted {
    color: #89949a
}

.about-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 35px;
    margin-top: 30px
}

.signature {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-top: 30px;
    font-size: 14px
}

.signature>span {
    border: 1px solid var(--line);
    border-radius: 50%;
    padding: 12px;
    font-family: Georgia;
    font-style: italic
}

.signature small {
    display: block;
    color: var(--muted);
    font-size: 12px
}

.topics {
    background: var(--soft)
}

.section-heading {
    display: flex;
    justify-content: space-between;
    gap: 35px;
    align-items: end;
    margin-bottom: 42px
}

.section-heading>p {
    font-size: 14px;
    max-width: 420px
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 0;
    border-top: 1px solid #cbd6d9
}

.topic-grid article {
    padding: 30px 30px 0 0
}

.topic-grid article+article {
    padding-left: 30px;
    border-left: 1px solid #cbd6d9
}

.topic-num {
    font-size: 13px;
    color: #4c8f84
}

.topic-grid h3 {
    font-size: 23px;
    margin: 24px 0
}

.topic-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
    color: #65727c;
    font-size: 14px
}

.topic-grid li {
    margin: 10px 0
}

.speaker-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px
}

.speaker-grid article {
    background: var(--navy);
    padding: 32px 36px;
    color: white
}

.speaker-grid article+article {
    background: #143d45
}

.speaker-top {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    letter-spacing: 2px;
    color: #8de7d8
}

.speaker-top span+span {
    font-size: 24px
}

.speaker-grid h3 {
    font-size: 36px;
    margin: 45px 0 18px;
    letter-spacing: -1px
}

.speaker-grid p {
    color: #bdcbd0;
    font-size: 14px;
    margin-bottom: 32px
}

.status {
    display: inline-block;
    border: 1px solid #72918980;
    color: #c6e6df;
    font-size: 12px;
    letter-spacing: .5px;
    padding: 6px 12px
}

.status.light {
    color: #527168;
    border-color: #b9cfc8;
    background: #f2f8f6
}

.committee {
    padding-top: 25px
}

.tabs {
    display: flex;
    gap: 28px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 20px
}

.tabs button {
    background: none;
    border: 0;
    border-bottom: 2px solid transparent;
    padding: 16px 0;
    color: #708087;
    font-size: 14px;
    text-align: left
}

.tabs button[aria-selected=true] {
    border-bottom-color: #178e78;
    color: var(--ink)
}

.tabs span {
    font-size: 11px;
    margin-left: 10px;
    color: #809596
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 0 28px
}

.person {
    padding: 26px 0;
    border-bottom: 1px solid var(--line)
}

.person h3 {
    font-size: 17px;
    margin-bottom: 7px
}

.person p {
    font-size: 13px
}

.person small {
    color: #0f8b76;
    font-size: 12px
}

.dates {
    background: var(--navy);
    color: white;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px
}

.dates .section-label {
    color: #9cbbb9
}

.dates p {
    color: #a7b8bf;
    font-size: 14px;
    margin-top: 25px
}

.date-list>div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid #34464f;
    padding: 19px 0;
    font-size: 14px
}

.date-list small {
    color: var(--mint);
    white-space: nowrap;
    font-size: 12px
}

.steps {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 40px
}

.steps article {
    border-top: 1px solid var(--line);
    padding-top: 22px
}

.steps span {
    color: #258c7d;
    font-size: 13px
}

.steps h3 {
    font-size: 22px;
    margin: 20px 0 12px
}

.steps p {
    font-size: 14px
}

.resource-row {
    margin-top: 42px;
    padding: 25px 0;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px
}

.resource-row h3 {
    font-size: 19px
}

.resource-row p {
    font-size: 14px;
    margin-top: 7px
}

.resource-row a {
    white-space: nowrap;
    font-size: 14px;
    border-bottom: 1px solid #425f65
}

.soft {
    background: var(--soft)
}

.compact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    padding-top: 65px;
    padding-bottom: 65px
}

.compact p {
    margin-bottom: 20px
}

.registration-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 20px
}

.registration-grid article {
    border: 1px solid var(--line);
    padding: 30px
}

.registration-grid article>span {
    font-size: 11px;
    letter-spacing: 2px;
    color: #4b8177
}

.registration-grid h3 {
    font-size: 30px;
    margin: 22px 0
}

.registration-grid p {
    font-size: 14px
}

.registration-grid article>div {
    margin-top: 32px;
    border-top: 1px solid var(--line);
    padding-top: 18px;
    font-size: 13px
}

.small-note {
    font-size: 13px;
    margin-top: 22px
}

.venue {
    background: #103b43;
    color: white;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 100px
}

.venue-title h2 {
    font-size: clamp(65px,7vw,105px);
    letter-spacing: -4px
}

.venue .section-label {
    color: #aed0ce
}

.venue-title>span {
    font-size: 12px;
    letter-spacing: 2px;
    display: block;
    margin-top: 40px;
    color: #a6c5c3
}

.venue-info h3 {
    font-size: 34px;
    margin: 25px 0
}

.venue-info p {
    font-size: 14px;
    color: #b6cfce
}

details {
    border-bottom: 1px solid #ffffff30;
    padding: 20px 0
}

summary {
    cursor: pointer;
    font-size: 15px
}

details p {
    margin-top: 15px
}

.dark {
    background: var(--ink);
    color: white
}

.sponsor-tiers {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 32px 0;
    margin-top: 32px;
    color: #76888e;
    font-family: 'Space Grotesk', Arial;
    font-size: 22px
}

.archive-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    border-top: 1px solid var(--line);
    padding: 20px 0;
    align-items: center
}

.archive-row strong {
    font-family: 'Space Grotesk', Arial;
    font-size: 25px;
    font-weight: 500
}

.archive-row a {
    font-size: 14px
}

.archive-row a:last-child {
    text-align: right
}

footer {
    background: var(--navy);
    color: white;
    padding: 60px 6.5% 20px
}

.footer-main {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 60px
}

.footer-main .brand {
    align-self: start;
    flex-wrap: wrap
}

.footer-main .brand small {
    display: block;
    width: 100%;
    border: 0;
    padding: 0;
    margin: 5px 0;
    letter-spacing: 2px;
    font-size: 10px
}

.footer-main h3 {
    font-size: 22px;
    margin-bottom: 20px
}

.footer-main a:not(.brand) {
    display: block;
    font-size: 14px;
    margin-bottom: 8px
}

.footer-main>div>span {
    font-size: 11px;
    letter-spacing: 2px;
    color: #93b2b5
}

.footer-main p {
    font-size: 13px;
    color: #a9babf;
    margin: 12px 0
}

.footer-bottom {
    border-top: 1px solid #ffffff25;
    margin-top: 50px;
    padding-top: 20px;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    color: #90a5ad
}

#menu-toggle {
    display: none
}

.skip {
    position: absolute;
    top: -80px;
    z-index: 100;
    background: white;
    padding: 15px
}

.skip:focus {
    top: 0
}

@media(min-width:1600px) {
    .section, footer {
        padding-left: max(6.5%,calc((100vw - 1400px)/2));
        padding-right: max(6.5%,calc((100vw - 1400px)/2))
    }
}

@media(max-width:1100px) {
    nav {
        gap: 16px;
        font-size: 12px
    }
    .brand small {
        display: none
    }
    .hero {
        min-height: 760px
    }
    .about {
        grid-template-columns: 1fr;
        gap: 0
    }
    .dates {
        gap: 40px
    }
    .venue {
        gap: 50px
    }
}

@media(max-width:760px) {
    header {
        height: 78px;
        padding: 0 6%
    }
    .brand {
        font-size: 30px
    }
    #menu-toggle {
        display: block;
        background: none;
        border: 1px solid #5f737b;
        color: white;
        font-size: 14px;
        padding: 6px 12px
    }
    nav {
        display: none;
        position: absolute;
        top: 78px;
        left: 0;
        right: 0;
        padding: 24px 6%;
        background: var(--navy);
        font-size: 16px;
        box-shadow: 0 20px 30px #0005
    }
    nav.open {
        display: flex;
        flex-direction: column;
        align-items: stretch
    }
    .hero {
        min-height: 840px
    }
    .hero-content {
        padding: 45px 6% 285px
    }
    h1 {
        font-size: clamp(46px,10.5vw,76px);
        letter-spacing: -2.5px
    }
    .eyebrow {
        font-size: 10px;
        letter-spacing: 1.4px
    }
    .hero-content p {
        font-size: 17px
    }
    .hero-actions {
        gap: 18px;
        flex-wrap: wrap
    }
    .hero-bottom {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        padding: 22px 0
    }
    .hero-bottom strong {
        font-size: 18px
    }
    .hero-bottom span {
        font-size: 11px
    }
    .hero-bottom>a {
        grid-column: 1/-1;
        justify-self: start
    }
    .video-caption {
        display: none
    }
    .video-control {
        bottom: 245px
    }
    .section-nav {
        grid-template-columns: 1fr 1fr;
        gap: 0 15px
    }
    .section-nav a {
        font-size: 12px;
        padding: 17px 0
    }
    .section {
        padding: 58px 6%
    }
    h2 {
        letter-spacing: -1px
    }
    .section-heading {
        display: block;
        margin-bottom: 30px
    }
    .section-heading>p, .section-heading>.button, .section-heading>.status {
        margin-top: 24px
    }
    .about-columns, .speaker-grid, .committee-grid, .dates, .steps, .compact, .registration-grid, .venue, .footer-main {
        grid-template-columns: 1fr;
        gap: 25px
    }
    .topic-grid {
        grid-template-columns: 1fr
    }
    .topic-grid article, .topic-grid article+article {
        border-left: 0;
        border-bottom: 1px solid var(--line);
        padding: 25px 0
    }
    .topic-grid h3 {
        margin: 12px 0
    }
    .speaker-grid h3 {
        font-size: 30px
    }
    .tabs {
        gap: 18px;
        overflow: auto
    }
    .tabs button {
        min-width: 145px;
        font-size: 12px
    }
    .tabs span {
        margin-left: 2px
    }
    .person {
        padding: 18px 0
    }
    .date-list>div {
        font-size: 13px
    }
    .resource-row {
        align-items: start;
        flex-direction: column
    }
    .venue-title h2 {
        font-size: 70px
    }
    .venue-title>span {
        margin-top: 20px
    }
    .sponsor-tiers {
        flex-wrap: wrap;
        font-size: 19px;
        justify-content: start;
        gap: 16px 30px
    }
    .archive-row {
        grid-template-columns: .8fr 1fr 1fr;
        gap: 10px
    }
    .archive-row strong {
        font-size: 22px
    }
    .archive-row a {
        font-size: 12px
    }
    .footer-main {
        gap: 35px
    }
    .footer-bottom {
        gap: 25px;
        align-items: start
    }
    .footer-bottom a {
        white-space: nowrap
    }
    .section-label {
        font-size: 11px
    }
    .dates h2 {
        font-size: 38px
    }
}

@media(prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto
    }
    * {
        transition: none!important
    }
}

/* AMC 2027: cinematic manufacturing, vivid and clearly separated chapters */
:root {
    --ink: #11182c;
    --navy: #080e1c;
    --mint: #ff714a;
    --muted: #637080;
    --soft: #edf1fa;
    --line: #d7deeb
}

header {
    background: #080e1c;
    height: 90px;
    border-bottom: 1px solid #ffffff1a
}

.brand>span {
    color: #ff825b
}

.nav-cta {
    background: #f96c43;
    color: #11182c;
    border: 0;
    font-weight: 700
}

.hero {
    min-height: 780px;
    background: #080e1c
}

.hero-art {
    position: absolute;
    inset: 0;
    background: url('assets/manufacturing.webp') 58% 50%/cover no-repeat;
    animation: hero-drift 16s ease-in-out infinite alternate
}

.hero-shade {
    background: linear-gradient(90deg,#070e1aeb,transparent 80%), linear-gradient(0deg,#080e1c,transparent 32%)
}

.hero-content {
    padding-top: 110px;
    padding-bottom: 200px;
    max-width: 1100px;
    z-index: 1
}

.hero h1 {
    font-size: clamp(62px,7.5vw,108px);
    line-height: 1;
    letter-spacing: -5px
}

.hero h1 em {
    color: #ff865f
}

.hero-content p {
    font-size: 20px;
    color: #e0e7f5
}

.eyebrow {
    color: #c2d2ef
}

.tiny-line {
    background: #ff825b
}

.button {
    background: #ff754b;
    color: #131827;
    padding: 17px 26px
}

.button:hover {
    background: #ff9b78;
    box-shadow: 0 10px 30px #ff754b30
}

.hero-side-label {
    position: absolute;
    right: 28px;
    top: 45%;
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: 3px;
    color: #d8e4fc99
}

.hero-bottom {
    z-index: 2;
    grid-template-columns: 1fr 1fr 1fr
}

.hero-bottom small {
    color: #ff956c
}

.hero-bottom strong {
    font-size: 23px
}

.hero-bottom>a span {
    color: #ff825b
}

.motion-control, .replay-intro {
    position: absolute;
    z-index: 3;
    bottom: 160px;
    right: 6.5%;
    background: #07101fb0;
    color: #dde7fc;
    border: 1px solid #ffffff40;
    font-size: 12px;
    padding: 8px 12px
}

.motion-control {
    right: calc(6.5% + 180px)
}

.section-nav {
    background: #213ecc;
    color: white;
    border: 0;
    gap: 25px
}

.section-nav a {
    font-size: 14px;
    padding: 23px 0;
    transition: color .25s
}

.section-nav a:hover {
    color: #ffcfb0
}

.theme-ribbon {
    overflow: hidden;
    background: #ff754b;
    color: #161d36;
    padding: 16px 0
}

.theme-ribbon>div {
    width: max-content;
    font-family: 'Space Grotesk', Arial;
    font-size: 17px;
    letter-spacing: 2px;
    animation: ribbon 24s linear infinite
}

.theme-ribbon b {
    padding: 0 38px;
    font-size: 23px;
    font-weight: 400
}

.section {
    padding-top: 105px;
    padding-bottom: 105px;
    position: relative
}

.section h2 {
    font-size: clamp(36px,4.1vw,60px);
    letter-spacing: -2.5px
}

.section-label {
    font-size: 12px;
    letter-spacing: 2.5px
}

.about {
    background: #fff;
    grid-template-columns: 1fr 2.5fr
}

.about>.section-label {
    color: #2448cb
}

.about .muted {
    color: #294dcc
}

.about-columns p {
    font-size: 16px
}

.community-film {
    height: 260px;
    position: relative;
    margin-top: 35px;
    overflow: hidden;
    background: #0a122a
}

.community-film video {
    width: 100%;
    height: 100%;
    object-fit: cover
}

.community-film>span {
    position: absolute;
    bottom: 18px;
    left: 20px;
    color: white;
    background: #0a122ab0;
    padding: 5px 10px;
    letter-spacing: 1px;
    font-size: 11px
}

.film-control {
    position: absolute;
    right: 20px;
    bottom: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid #ffffff70;
    background: #ffffff;
    color: #142757;
    font-size: 20px
}

.topics {
    background: #223ed0;
    color: white;
    border-top: 8px solid #a5baff
}

.topics .section-label {
    color: #bfcdff
}

.topics p, .topics li {
    color: #e1e8ff
}

.topic-grid {
    border-color: #ffffff40;
    gap: 18px;
    border-top: 0
}

.topic-grid article, .topic-grid article+article {
    border: 1px solid #ffffff40;
    background: #142bb35e;
    padding: 32px;
    transition: background .3s, transform .3s
}

.topic-grid article:hover {
    background: #344fe1;
    transform: translateY(-7px)
}

.topic-grid h3 {
    font-size: 26px
}

.topic-num {
    color: #ffd099;
    font-size: 16px
}

.topic-grid li {
    font-size: 15px;
    margin: 12px 0
}

.speakers {
    background: #0a1020;
    color: white;
    border-top: 8px solid #ff754b
}

.speakers .section-label {
    color: #ff9a73
}

.speakers em {
    color: #ff8a61
}

.speakers .section-heading p {
    color: #a6b5d0
}

.sample-notice {
    border-left: 3px solid #ff8a61;
    background: #ffffff08;
    padding: 16px 20px;
    font-size: 14px;
    color: #c5cfdf;
    max-width: 900px;
    line-height: 1.6
}

.speaker-group-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin: 40px 0 24px
}

.speaker-group-heading h3 {
    font-size: 27px
}

.speaker-group-heading>span {
    font-size: 11px;
    letter-spacing: 1.5px;
    color: #9cabca
}

.portrait-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 22px
}

.portrait-card {
    min-width: 0;
    transition: transform .35s
}

.portrait-card:hover {
    transform: translateY(-8px)
}

.portrait {
    height: 310px;
    position: relative;
    background: linear-gradient(135deg,#364fb2,#142453);
    overflow: hidden;
    border-radius: 100px 0 0 0
}

.portrait-card:nth-child(2) .portrait {
    background: linear-gradient(135deg,#cc623f,#603849)
}

.portrait-card:nth-child(3) .portrait {
    background: linear-gradient(135deg,#298d8b,#134d62)
}

.portrait-card:nth-child(4) .portrait {
    background: linear-gradient(135deg,#7855b5,#2c2559)
}

.portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform .7s
}

.portrait-card:hover img {
    transform: scale(1.06)
}

.portrait>span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #0a1020d9;
    color: #ffbc9d;
    font-size: 9px;
    letter-spacing: 1px;
    padding: 9px 12px
}

.portrait-info {
    padding: 20px 0;
    border-bottom: 1px solid #ffffff24;
    min-height: 116px
}

.portrait-info h3 {
    font-size: 21px;
    line-height: 1.3
}

.portrait-info p {
    font-size: 13px;
    color: #9facbf;
    margin-top: 7px
}

.invited-heading {
    margin-top: 60px
}

.invited-grid .portrait {
    height: 250px;
    border-radius: 0 0 60px 0
}

.committee {
    background: #e9edf7;
    border-top: 8px solid #859dde
}

.committee .section-label {
    color: #3c5598
}

.tabs button[aria-selected=true] {
    border-bottom-color: #2343cc;
    color: #1c39b5
}

.tabs button {
    font-size: 14px
}

.person {
    border-color: #c9d2e5
}

.person h3 {
    font-size: 19px
}

.person p {
    font-size: 14px;
    color: #566377
}

.person small {
    color: #2749b0
}

.dates {
    background: #fa754b;
    color: #1b2136;
    border-top: 8px solid #f1b097;
    gap: 70px
}

.dates em {
    color: #fff
}

.dates .section-label {
    color: #532b2c
}

.dates p {
    color: #4d3435;
    font-size: 16px
}

.date-list>div {
    border-color: #8c402b55;
    font-size: 15px
}

.date-list small {
    color: #402d38;
    background: #ffffff38;
    padding: 4px 9px;
    font-size: 12px
}

#submission {
    background: #fff
}

.steps {
    gap: 24px
}

.steps article {
    padding: 30px;
    background: #f0f3fa;
    border-top: 4px solid #3c5bd6
}

.steps article:nth-child(2) {
    border-color: #fb805a
}

.steps article:nth-child(3) {
    border-color: #2e969b
}

.steps span {
    font-size: 32px;
    font-family: 'Space Grotesk', Arial;
    color: #3b5bd3
}

.steps h3 {
    font-size: 23px
}

.steps p {
    font-size: 15px
}

.compact {
    background: #132966;
    color: white;
    border-top: 6px solid #3f60c2
}

.compact p {
    color: #c1cde9
}

.compact .section-label {
    color: #a6bdff
}

.compact .status.light {
    background: transparent;
    color: #cad7ff;
    border-color: #687bad
}

#registration {
    background: #eef2fb
}

.registration-grid {
    gap: 25px
}

.registration-grid article {
    background: white;
    border: 0;
    border-top: 5px solid #3652d1;
    padding: 35px;
    box-shadow: 0 15px 35px #15245708;
    transition: transform .3s
}

.registration-grid article:nth-child(2) {
    background: #233ecd;
    color: white;
    border-color: #829fff
}

.registration-grid article:nth-child(2) p, .registration-grid article:nth-child(2)>span {
    color: #d3dcff
}

.registration-grid article:nth-child(3) {
    border-color: #fa8059
}

.registration-grid article:hover {
    transform: translateY(-7px)
}

.registration-grid article>span {
    color: #455e9c
}

.venue {
    background: linear-gradient(120deg,#102a6e,#20578e);
    color: white;
    border-top: 8px solid #45b5c4
}

.venue-title h2 {
    font-size: clamp(75px,8vw,120px)
}

.venue-title h2 em {
    color: #7de8e3
}

.venue .section-label {
    color: #b2e6f0
}

.venue-info p {
    color: #d0e0f2
}

.venue-info .status {
    border-color: #76b0c3;
    color: #c1eef3
}

#sponsors {
    background: #fff;
    border-bottom: 6px solid #f98055
}

.button.dark {
    background: #243fcc;
    color: white
}

.sponsor-tiers {
    border-color: #d5ddec
}

.sponsor-tiers span {
    color: #3b5199
}

#archive {
    background: #0b1429;
    color: #f0f4ff
}

.archive-row {
    border-color: #ffffff28
}

.archive-row a {
    color: #b6c8e8
}

.archive-row strong {
    color: #ff9d73
}

.archive-row:hover {
    background: #ffffff06
}

.resource-row {
    border-color: #ffffff30
}

#archive p {
    color: #a8b7d0
}

#archive .section-label {
    color: #9eaed3
}

.resource-row a {
    color: #2e51c3
}

footer {
    background: #070c17;
    border-top: 1px solid #ffffff1c
}

.signature>span {
    color: #3150ba;
    border-color: #c9d4f1
}

.intro[hidden] {
    display: none
}

.intro {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: #050a15;
    color: white;
    overflow: hidden;
    transition: opacity .75s, visibility .75s
}

.intro.exit {
    opacity: 0;
    visibility: hidden;
    pointer-events: none
}

.intro-art {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    transform: scale(1.08);
    animation: intro-camera 5s ease-out both
}

.intro-slice {
    flex: 1;
    background-image: url('assets/manufacturing.webp');
    background-size: 100vw 100vh;
    background-position: center var(--pos);
    opacity: 0;
    animation: slice-arrive 1.2s cubic-bezier(.2,.8,.2,1) forwards;
    animation-delay: calc((11 - var(--i)) * .13s)
}

.intro-vignette {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,#060b17d9,transparent 95%), linear-gradient(0deg,#060b17bb,transparent 35%)
}

.intro-top, .intro-bottom {
    position: absolute;
    left: 6%;
    right: 6%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    font-size: 12px;
    letter-spacing: 2px
}

.intro-top {
    top: 35px
}

.intro-top>span {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 4px
}

.intro-top button {
    background: transparent;
    border: 1px solid #ffffff60;
    color: white;
    padding: 10px 18px;
    font-size: 13px
}

.intro-copy {
    position: absolute;
    left: 8%;
    top: 30%
}

.intro-kicker {
    font-size: 12px;
    letter-spacing: 4px;
    color: #ffc2a5
}

.intro-copy h2 {
    font-size: clamp(55px,8vw,120px);
    letter-spacing: -4px;
    line-height: 1.05;
    margin: 24px 0;
    animation: intro-words 1.3s .4s both
}

.intro-copy p {
    color: #c6d4ed;
    font-size: 17px
}

.intro-location {
    display: block;
    color: #ffb289;
    font-size: 12px;
    letter-spacing: 3px;
    margin-top: 24px
}

.intro-bottom {
    bottom: 35px;
    font-size: 10px
}

.intro-progress {
    height: 2px;
    background: #ffffff25;
    flex: 1;
    max-width: 350px;
    overflow: hidden
}

.intro-progress::after {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: #ff855b;
    transform-origin: left;
    animation: intro-progress 5s linear both
}

.motion-paused *, .motion-paused *::before, .motion-paused *::after {
    animation-play-state: paused!important
}

.reveal-ready {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity .8s, transform .8s
}

.reveal-ready.is-visible, .motion-paused .reveal-ready {
    opacity: 1;
    transform: none
}

.intro-open {
    overflow: hidden
}

@keyframes hero-drift {
    from {
        transform: scale(1)
    }
    to {
        transform: scale(1.06)
    }
}

@keyframes ribbon {
    to {
        transform: translateX(-50%)
    }
}

@keyframes slice-arrive {
    from {
        opacity: 0;
        transform: translateX(8%);
        filter: brightness(2)
    }
    to {
        opacity: 1;
        transform: none;
        filter: brightness(1)
    }
}

@keyframes intro-camera {
    from {
        transform: scale(1.15)
    }
    to {
        transform: scale(1)
    }
}

@keyframes intro-words {
    from {
        opacity: 0;
        transform: translateY(30px)
    }
    to {
        opacity: 1;
        transform: none
    }
}

@keyframes intro-progress {
    from {
        transform: scaleX(0)
    }
    to {
        transform: scaleX(1)
    }
}

@media(max-width:1100px) {
    .hero h1 {
        font-size: 80px
    }
    .portrait {
        height: 240px
    }
    .portrait-info h3 {
        font-size: 18px
    }
    .portrait-grid {
        gap: 16px
    }
    .topic-grid article, .topic-grid article+article {
        padding: 24px
    }
    .hero-content {
        max-width: 850px
    }
    .intro-art {
        background-position: 60% center
    }
}

@media(max-width:760px) {
    header {
        height: 78px
    }
    .hero {
        min-height: 820px
    }
    .hero-content {
        padding-top: 90px;
        padding-bottom: 300px
    }
    .hero h1 {
        font-size: clamp(49px,11vw,78px);
        letter-spacing: -2.5px
    }
    .hero-art {
        background-position: 64% center
    }
    .hero-shade {
        background: linear-gradient(90deg,#070e1aca,#070e1a50), linear-gradient(0deg,#080e1c,transparent 60%)
    }
    .hero-side-label {
        display: none
    }
    .hero-bottom {
        grid-template-columns: 1fr 1fr
    }
    .hero-bottom strong {
        font-size: 19px
    }
    .motion-control, .replay-intro {
        bottom: 245px;
        font-size: 11px
    }
    .motion-control {
        right: auto;
        left: 6%
    }
    .section {
        padding-top: 65px;
        padding-bottom: 65px
    }
    .section h2 {
        font-size: 37px;
        letter-spacing: -1.5px
    }
    .section-nav {
        gap: 0 15px
    }
    .section-nav a {
        font-size: 12px
    }
    .about {
        grid-template-columns: 1fr
    }
    .community-film {
        height: 220px
    }
    .topic-grid {
        gap: 16px
    }
    .topic-grid article, .topic-grid article+article {
        border: 1px solid #ffffff40;
        padding: 25px
    }
    .portrait-grid {
        grid-template-columns: 1fr 1fr;
        gap: 22px 14px
    }
    .portrait {
        height: 230px;
        border-radius: 65px 0 0 0
    }
    .portrait-info h3 {
        font-size: 18px
    }
    .portrait-info p {
        font-size: 12px
    }
    .portrait>span {
        font-size: 8px;
        letter-spacing: .2px
    }
    .invited-grid .portrait {
        height: 200px
    }
    .speaker-group-heading {
        align-items: start;
        flex-direction: column;
        gap: 10px
    }
    .sample-notice {
        font-size: 13px
    }
    .dates {
        gap: 25px
    }
    .date-list>div {
        font-size: 13px
    }
    .date-list small {
        font-size: 10px
    }
    .venue-title h2 {
        font-size: 80px
    }
    .intro-copy {
        left: 7%;
        right: 6%;
        top: 30%
    }
    .intro-copy h2 {
        font-size: 64px;
        letter-spacing: -3px
    }
    .intro-copy p {
        font-size: 14px;
        max-width: 250px
    }
    .intro-kicker {
        font-size: 10px;
        letter-spacing: 2px
    }
    .intro-bottom {
        gap: 15px;
        font-size: 8px;
        letter-spacing: 1px
    }
    .intro-location {
        font-size: 10px
    }
    .intro-slice {
        background-size: auto 100vh
    }
    .theme-ribbon>div {
        font-size: 14px
    }
    .theme-ribbon b {
        padding: 0 20px
    }
}

@media(prefers-reduced-motion:reduce) {
    .hero-art, .theme-ribbon>div {
        animation: none
    }
    .intro {
        display: none
    }
    .reveal-ready {
        opacity: 1;
        transform: none
    }
    .portrait-card:hover, .registration-grid article:hover, .topic-grid article:hover {
        transform: none
    }
    .portrait-card:hover img {
        transform: none
    }
}

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #080e1cf5;
    backdrop-filter: blur(14px)
}

html {
    scroll-padding-top: 110px
}

.committee-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px
}

.committee-columns h3, .advisory-heading {
    font-size: 25px;
    color: #233c91;
    border-bottom: 3px solid #8fa2d3;
    padding-bottom: 20px
}

.committee-columns .person h3, .advisory-grid .person h3 {
    font-size: 18px;
    border: 0;
    padding: 0
}

.person a {
    color: #243f9e
}

.person a:hover {
    text-decoration: underline
}

.advisory-heading {
    margin-top: 45px
}

.advisory-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 0 25px
}

.submission-flow {
    border: 1px solid #d9e1ee;
    padding: 30px;
    background: #f5f7fc
}

.flow-path+ .flow-path {
    border-top: 1px solid #ccd6e9;
    margin-top: 28px;
    padding-top: 28px
}

.flow-path h3 {
    color: #2348b4;
    margin-bottom: 18px
}

.flow-path>div {
    display: flex;
    gap: 20px;
    align-items: center
}

.flow-path span {
    flex: 1;
    background: white;
    padding: 20px;
    border-left: 3px solid #3454d0;
    font-size: 15px
}

.flow-path:nth-child(2) span {
    border-color: #f77c54
}

.flow-path small {
    display: block;
    font-size: 12px;
    color: #637080;
    margin-top: 10px
}

.document-library {
    margin-top: 35px
}

.document-library h3 {
    font-size: 25px;
    margin-bottom: 20px
}

.download-row {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 0;
    border-bottom: 1px solid #cbd5e8;
    flex-wrap: wrap
}

.download-row strong {
    flex: 1
}

.download-row a, .speaker-actions a, .speaker-actions button {
    font: 14px 'DM Sans', Arial;
    border: 1px solid #8396bd;
    padding: 8px 12px;
    background: transparent;
    color: inherit;
    cursor: pointer
}

.speaker-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 15px
}

.speaker-actions a, .speaker-actions button {
    font-size: 12px;
    color: #d4e3ff;
    border-color: #5a6c8a
}

.registration-grid article:nth-child(1) {
    background: #153c6b;
    color: white;
    border-color: #3c97d1
}

.registration-grid article:nth-child(2) {
    background: #2539a5;
    color: white;
    border-color: #7c99ff
}

.registration-grid article:nth-child(3) {
    background: #a94526;
    color: white;
    border-color: #ffab79
}

.registration-grid article p, .registration-grid article>span {
    color: #e5edff!important
}

.registration-grid ul {
    padding-left: 18px;
    font-size: 15px;
    line-height: 1.9;
    margin-top: 22px
}

.registration-grid article>div {
    border-color: #ffffff55
}

.registration-grid h3 {
    font-size: 29px
}

#bio-dialog {
    width: min(600px,90vw);
    border: 0;
    padding: 40px;
    border-radius: 10px;
    color: #142039;
    box-shadow: 0 20px 100px #0008
}

#bio-dialog::backdrop {
    background: #030c23bb
}

#bio-dialog h2 {
    font-size: 28px;
    margin-bottom: 20px
}

#bio-dialog p {
    white-space: pre-wrap
}

#bio-close {
    float: right;
    background: none;
    border: 0;
    font-size: 28px
}

.program-embed {
    width: 100%;
    height: 600px;
    border: 1px solid #607ba8;
    margin-top: 20px
}

#program:has(.program-embed) {
    display: block
}

#program-files {
    margin-top: 20px
}

@media(max-width:760px) {
    html {
        scroll-padding-top: 90px
    }
    .committee-columns, .advisory-grid {
        grid-template-columns: 1fr
    }
    .flow-path>div {
        flex-direction: column;
        align-items: stretch
    }
    .flow-path b {
        text-align: center;
        transform: rotate(90deg)
    }
    .submission-flow {
        padding: 20px
    }
    .program-embed {
        height: 420px
    }
}

.welcome-letter {
    max-width: 790px;
    margin-top: 30px
}

.welcome-letter p {
    font-size: 16px;
    line-height: 1.85;
    color: #526174;
    margin: 0 0 18px
}

.welcome-letter p:first-child {
    color: #172c51;
    font-weight: 600
}

.committee-tabs {
    margin-top: 10px
}

.committee-grid .person {
    min-width: 0
}

.chair-label {
    display: block;
    color: #2948b2;
    margin-top: 8px;
    font-size: 12px
}

.announcement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px
}

.speaker-announcement {
    position: relative;
    overflow: hidden;
    border: 1px solid #40517c;
    background: linear-gradient(125deg,#182b68,#101d3b);
    padding: 38px
}

.speaker-announcement:nth-child(2) {
    background: linear-gradient(125deg,#462743,#1d1b38);
    border-color: #78506c
}

.announcement-label {
    font-size: 12px;
    letter-spacing: 2.5px;
    color: #c4d1ff
}

.announcement-index {
    position: absolute;
    right: 20px;
    top: 0;
    font-size: 155px;
    line-height: 1.2;
    font-family: 'Space Grotesk', Arial;
    color: #ffffff05;
    pointer-events: none
}

.speaker-announcement h3 {
    position: relative;
    font-size: clamp(40px,4.8vw,66px);
    letter-spacing: -2px;
    line-height: 1.08;
    margin: 55px 0 24px
}

.speaker-announcement h3 em {
    color: #96b4ff
}

.speaker-announcement:nth-child(2) h3 em {
    color: #ffa587
}

.speaker-announcement p {
    color: #b4c0d6;
    max-width: 330px;
    font-size: 15px
}

.announcement-bottom {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    border-top: 1px solid #ffffff25;
    padding-top: 20px;
    margin-top: 45px;
    font-size: 11px;
    letter-spacing: 1.5px;
    color: #b6c4dc
}

.bronze-sponsors {
    padding: 35px 0 10px
}

.bronze-sponsors h3 {
    font-size: 24px;
    color: #955b36;
    margin-bottom: 25px
}

.sponsor-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 290px;
    max-width: 100%;
    height: 155px;
    padding: 25px;
    border: 1px solid #dccbbc;
    background: white;
    border-top: 4px solid #ab784e
}

.sponsor-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain
}

@media(max-width:760px) {
    .announcement-grid {
        grid-template-columns: 1fr
    }
    .speaker-announcement {
        padding: 28px
    }
    .speaker-announcement h3 {
        font-size: 48px
    }
    .committee-tabs button {
        font-size: 12px;
        min-width: 150px
    }
    .welcome-letter p {
        font-size: 16px
    }
}

/* AMC 2027 logo assets */
.brand-logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    line-height: 0;
}

.brand-logo img {
    display: block;
    width: auto;
    height: 48px;
    max-width: 320px;
    object-fit: contain;
}

.footer-main .brand-logo {
    align-self: start;
}

.footer-main .brand-logo img {
    height: 56px;
    max-width: 340px;
}

@media (max-width: 1100px) {
    .brand-logo img {
        height: 44px;
        max-width: 280px;
    }
}

@media (max-width: 760px) {
    .brand-logo img {
        height: 36px;
        max-width: 220px;
    }
    .footer-main .brand-logo img {
        height: 44px;
        max-width: 260px;
    }
}