@import url(
    'https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap'
);


/* =========================================================
   VARIABLES
========================================================= */

:root {

    --bg: #0b1426;

    --bg-light: #111d32;

    --card: #17243a;

    --card-hover: #1d2b43;

    --border: #2b3b55;

    --text: #f5f6fa;

    --text-soft: #cbd3df;

    --text-muted: #9ba8bb;

    --purple: #716cff;

    --purple-light: #9b98ff;

    --blue: #69a9ff;

    --cyan: #5dd6d0;

    --gold: #ffc857;

    --serif:
        "Times New Roman",
        Times,
        Georgia,
        serif;

    --sans:
        "Inter",
        Arial,
        sans-serif;

    --max-width: 1250px;

}


/* =========================================================
   RESET
========================================================= */

* {
    box-sizing: border-box;
}


html {
    scroll-behavior: smooth;
}


body {

    margin: 0;

    background: var(--bg);

    color: var(--text);

    font-family: var(--sans);

    line-height: 1.65;

    -webkit-font-smoothing: antialiased;

}


a {
    color: inherit;
}


/* =========================================================
   HERO
========================================================= */

.hero {

    min-height: 600px;

    display: flex;

    align-items: flex-start;

    justify-content: center;

    text-align: center;

    padding: 65px 30px 105px;

    background:

        radial-gradient(
            circle at 50% 0%,
            rgba(113, 108, 255, .17),
            transparent 42%
        ),

        radial-gradient(
            circle at 15% 70%,
            rgba(93, 214, 208, .05),
            transparent 30%
        ),

        var(--bg);

}


.hero-inner {

    width: 100%;

    max-width: 1180px;

    margin: 0 auto;

}


/* =========================================================
   CONFERENCE LABEL
========================================================= */

.conference-label {

    color: var(--purple-light);

    font-family: var(--sans);

    font-size: 1.38rem;

    font-weight: 700;

    letter-spacing: .07em;

    text-transform: uppercase;

    margin-bottom: 24px;

}


/* =========================================================
   TITLE
========================================================= */

.hero h1 {

    margin: 0 auto;

    max-width: 1180px;

    font-family: var(--serif);

    font-size: clamp(
        3.3rem,
        5.7vw,
        5.25rem
    );

    line-height: 1.04;

    letter-spacing: -.032em;

    font-weight: 700;

    color: #ffffff;

}


.hero h1 span {

    display: block;

    margin-top: 10px;

    background:

        linear-gradient(
            90deg,
            #efefff 0%,
            #c3baff 48%,
            #7fb8ff 100%
        );

    -webkit-background-clip: text;

    background-clip: text;

    -webkit-text-fill-color: transparent;

}


/* =========================================================
   SUBTITLE
========================================================= */

.subtitle {

    margin: 34px auto 0;

    max-width: 820px;

    color: #d2d8e3;

    font-family: var(--sans);

    font-size: 1.25rem;

    line-height: 1.5;

    font-weight: 400;

    letter-spacing: .005em;

}


/* =========================================================
   SLIDES
========================================================= */

.hero-links {

    display: flex;

    justify-content: center;

    align-items: center;

    margin-top: 31px;

}


.hero-link {

    display: inline-flex;

    align-items: center;

    gap: 12px;

    color: var(--gold);

    text-decoration: none;

    font-size: 1.55rem;

    line-height: 1;

    font-weight: 500;

    transition:
        color .2s ease,
        transform .2s ease;

}


.hero-link:hover {

    color: #ffe29a;

    transform: translateY(-2px);

}


/* NeurIPS-style PDF icon */

.slides-document-icon {

    position: relative;

    width: 23px;

    height: 29px;

    display: inline-flex;

    align-items: flex-end;

    justify-content: center;

    padding-bottom: 2px;

    border: 2px solid var(--gold);

    border-radius: 2px;

    color: var(--gold);

    font-size: 12px;

    font-weight: 800;

    line-height: 1;

}


.slides-fold {

    position: absolute;

    top: -2px;

    right: -2px;

    width: 9px;

    height: 9px;

    background: var(--bg);

    border-left: 2px solid var(--gold);

    border-bottom: 2px solid var(--gold);

}


.slides-letter {

    position: relative;

    z-index: 2;

}


/* =========================================================
   EVENT INFORMATION
========================================================= */

.event-section {

    width: min(
        var(--max-width),
        calc(100% - 60px)
    );

    margin: -48px auto 0;

    position: relative;

    z-index: 2;

}


.event-grid {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 22px;

}


.event-card {

    position: relative;

    overflow: hidden;

    min-height: 130px;

    display: flex;

    align-items: center;

    gap: 23px;

    padding: 29px 30px;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 15px;

}


.event-card::after {

    content: "";

    position: absolute;

    width: 120px;

    height: 120px;

    right: -45px;

    bottom: -55px;

    border-radius: 50%;

    background:

        radial-gradient(
            circle,
            rgba(113,108,255,.17),
            transparent 70%
        );

    pointer-events: none;

}


.event-card:nth-child(2)::after {

    background:

        radial-gradient(
            circle,
            rgba(105,169,255,.15),
            transparent 70%
        );

}


.event-card:nth-child(3)::after {

    background:

        radial-gradient(
            circle,
            rgba(93,214,208,.14),
            transparent 70%
        );

}


.event-icon {

    position: relative;

    z-index: 1;

    width: 50px;

    height: 50px;

    flex: 0 0 50px;

    display: flex;

    align-items: center;

    justify-content: center;

    color: var(--purple-light);

    border: 2px solid var(--purple);

    border-radius: 12px;

    font-size: 1.15rem;

    font-weight: 700;

}


.event-card:nth-child(2) .event-icon {

    color: var(--blue);

    border-color: var(--blue);

}


.event-card:nth-child(3) .event-icon {

    color: var(--cyan);

    border-color: var(--cyan);

}


.event-label {

    position: relative;

    z-index: 1;

    margin-bottom: 3px;

    color: var(--text-muted);

    font-size: .72rem;

    font-weight: 700;

    letter-spacing: .1em;

    text-transform: uppercase;

}


.event-value {

    position: relative;

    z-index: 1;

    color: var(--text);

    font-size: 1rem;

    font-weight: 600;

    line-height: 1.45;

}


/* =========================================================
   GENERAL CONTENT
========================================================= */

.content-section {

    width: min(
        var(--max-width),
        calc(100% - 60px)
    );

    margin: 105px auto 0;

}


.section-heading,
.agenda-title {

    display: flex;

    align-items: center;

    gap: 20px;

    margin-bottom: 35px;

}


.section-number {

    width: 48px;

    height: 48px;

    display: flex;

    align-items: center;

    justify-content: center;

    flex: 0 0 48px;

    background:

        linear-gradient(
            135deg,
            var(--purple),
            #5651d5
        );

    border-radius: 50%;

    color: white;

    font-size: .78rem;

    font-weight: 800;

}


.section-label {

    color: var(--purple-light);

    font-size: .7rem;

    font-weight: 800;

    letter-spacing: .14em;

    margin-bottom: 3px;

}


.section-heading h2,
.agenda-title h2 {

    margin: 0;

    font-family: var(--serif);

    font-size: 2.35rem;

    line-height: 1.15;

    letter-spacing: -.015em;

    font-weight: 700;

}


/* =========================================================
   ABSTRACT
========================================================= */

.abstract-card {

    padding: 42px 48px;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 16px;

    box-shadow:
        0 20px 50px rgba(0,0,0,.12);

}


.abstract-card p {

    margin: 0 0 22px;

    color: var(--text-soft);

    font-family: var(--serif);

    font-size: 1rem;

    line-height: 1.9;

}


.abstract-card p:last-child {
    margin-bottom: 0;
}


.abstract-card strong {
    color: #ffffff;
}


/* =========================================================
   AGENDA
========================================================= */

.agenda-section {

    width: 100%;

    margin-top: 105px;

    padding: 90px 0 100px;

    background:

        radial-gradient(
            circle at 50% 30%,
            rgba(113,108,255,.08),
            transparent 45%
        ),

        var(--bg-light);

    border-top: 1px solid var(--border);

    border-bottom: 1px solid var(--border);

}


.agenda-container {

    width: min(
        var(--max-width),
        calc(100% - 60px)
    );

    margin: auto;

}


.agenda-title {

    margin-bottom: 40px;

}


.agenda-card {

    position: relative;

    padding: 15px 38px;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 16px;

    overflow: hidden;

}


.agenda-card::before {

    content: "";

    position: absolute;

    left: 62px;

    top: 40px;

    bottom: 40px;

    width: 2px;

    background:

        linear-gradient(
            to bottom,
            var(--purple),
            #3c5575
        );

}


.agenda-item {

    position: relative;

    display: grid;

    grid-template-columns:
        55px 1fr;

    gap: 28px;

    padding: 28px 0;

}


.agenda-item:not(:last-child) {

    border-bottom:
        1px solid
        rgba(255,255,255,.07);

}


.agenda-marker {

    position: relative;

    z-index: 2;

    width: 45px;

    height: 45px;

    display: flex;

    align-items: center;

    justify-content: center;

    border-radius: 50%;

    background:

        linear-gradient(
            135deg,
            #6d68ff,
            #504bd0
        );

    border: 5px solid var(--card);

    color: white;

    font-size: .72rem;

    font-weight: 800;

    box-shadow:
        0 0 0 1px
        rgba(124,124,255,.25);

}


.agenda-item:nth-child(2)
.agenda-marker {

    background:

        linear-gradient(
            135deg,
            #8275ff,
            #6257db
        );

}


.agenda-item:nth-child(3)
.agenda-marker {

    background:

        linear-gradient(
            135deg,
            #40c9c3,
            #279b98
        );

}


.agenda-content {

    padding-top: 4px;

}


.agenda-heading {

    display: flex;

    align-items: flex-start;

    justify-content: space-between;

    gap: 30px;

}


.agenda-heading h3 {

    margin: 0;

    max-width: 850px;

    color: #ffffff;

    font-family: var(--serif);

    font-size: 1.35rem;

    line-height: 1.35;

}


.agenda-time {

    flex: 0 0 auto;

    color: #aeb7c6;

    font-size: .82rem;

    font-weight: 600;

    padding-top: 4px;

}


.agenda-content p {

    max-width: 900px;

    margin: 10px 0 0;

    color: var(--text-muted);

    font-size: .86rem;

    line-height: 1.72;

}


/* =========================================================
   SPEAKERS
========================================================= */

.speakers-section {

    padding-bottom: 115px;

}


.speaker-grid {

    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 24px;

    align-items: stretch;

}


.speaker-card {

    display: flex;

    flex-direction: column;

    height: 100%;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 16px;

    overflow: hidden;

    transition:
        transform .25s ease,
        background .25s ease,
        border-color .25s ease;

}


.speaker-card:hover {

    transform: translateY(-5px);

    background: var(--card-hover);

    border-color: #40506b;

}


.speaker-photo {

    height: 245px;

    flex: 0 0 245px;

    display: flex;

    align-items: center;

    justify-content: center;

    background:

        radial-gradient(
            circle,
            rgba(124,124,255,.15),
            transparent 65%
        );

}


.speaker-photo img {

    width: 165px;

    height: 165px;

    object-fit: cover;

    border-radius: 50%;

    border: 6px solid #394a64;

    box-shadow:
        0 0 0 2px
        rgba(124,124,255,.18);

}


.speaker-info {

    display: flex;

    flex-direction: column;

    flex: 1;

    padding: 29px 30px 30px;

}


.speaker-main {

    flex: 1;

}


.speaker-info h3 {

    min-height: 34px;

    margin: 0;

    color: #ffffff;

    font-family: var(--serif);

    font-size: 1.42rem;

    line-height: 1.25;

    font-weight: 700;

}


.speaker-role {

    min-height: 27px;

    margin-top: 7px;

    color: var(--purple-light);

    font-size: .85rem;

    font-weight: 700;

}


.speaker-affiliation {

    min-height: 70px;

    margin-top: 16px;

    padding-top: 16px;

    border-top: 1px solid var(--border);

    color: var(--text-soft);

    font-size: .81rem;

    line-height: 1.55;

}


.speaker-info p {

    margin: 13px 0 0;

    color: #a9b7ca;

    font-size: .84rem;

    line-height: 1.72;

}


.profile-link {

    display: inline-flex;

    align-items: center;

    align-self: flex-start;

    min-height: 26px;

    margin-top: 25px;

    color: var(--gold);

    text-decoration: none;

    font-size: .82rem;

    font-weight: 700;

}


.profile-link:hover {

    color: #ffe09a;

    text-decoration: underline;

}


/* =========================================================
   CLOSING CTA
========================================================= */

.conference-cta {

    width: 100%;

    min-height: 380px;

    display: flex;

    align-items: center;

    justify-content: center;

    padding: 80px 30px;

    text-align: center;

    background:

        radial-gradient(
            circle at 50% 35%,
            rgba(113,108,255,.10),
            transparent 38%
        ),

        var(--bg-light);

    border-top: 1px solid var(--border);

}


.conference-cta-inner {

    max-width: 760px;

    margin: auto;

}


.conference-cta-inner h2 {

    margin: 0;

    color: #ffffff;

    font-family: var(--sans);

    font-size: 2rem;

    line-height: 1.2;

    font-weight: 700;

}


.conference-cta-inner p {

    margin: 24px auto 0;

    max-width: 650px;

    color: var(--text-soft);

    font-size: 1.08rem;

    line-height: 1.65;

}


.conference-button {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 9px;

    margin-top: 34px;

    padding: 15px 27px;

    background:

        linear-gradient(
            135deg,
            #6258f5,
            #4f46df
        );

    border: 1px solid
        rgba(255,255,255,.08);

    border-radius: 9px;

    color: #ffffff;

    text-decoration: none;

    font-size: 1rem;

    font-weight: 700;

    box-shadow:
        0 12px 30px
        rgba(38,32,150,.22);

    transition:
        transform .2s ease,
        box-shadow .2s ease,
        background .2s ease;

}


.conference-button:hover {

    transform: translateY(-2px);

    background:

        linear-gradient(
            135deg,
            #7167ff,
            #5c52eb
        );

    box-shadow:
        0 16px 36px
        rgba(38,32,150,.28);

}


/* =========================================================
   FOOTER
========================================================= */

footer {

    background: var(--bg-light);

    border-top: 1px solid var(--border);

}


.footer-inner {

    width: min(
        var(--max-width),
        calc(100% - 60px)
    );

    min-height: 95px;

    margin: 0 auto;

    display: flex;

    align-items: center;

    justify-content: center;

    text-align: center;

}


.footer-inner p {

    margin: 0;

    color: var(--text-muted);

    font-size: .8rem;

}


/* =========================================================
   TABLET
========================================================= */

@media (max-width: 900px) {


    .hero {

        min-height: 560px;

    }


    .event-grid {

        grid-template-columns: 1fr;

    }


    .speaker-grid {

        grid-template-columns: 1fr;

    }


    .speaker-card {

        width: 100%;

        max-width: 680px;

        margin: auto;

    }


    .speaker-affiliation {

        min-height: 0;

    }


    .speaker-info h3,
    .speaker-role {

        min-height: 0;

    }

}


/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 700px) {


    .hero {

        min-height: auto;

        padding: 55px 20px 105px;

    }


    .conference-label {

        font-size: 1rem;

        margin-bottom: 19px;

    }


    .hero h1 {

        font-size: 2.65rem;

        line-height: 1.07;

    }


    .hero h1 span {

        margin-top: 7px;

    }


    .subtitle {

        margin-top: 25px;

        font-size: 1rem;

    }


    .hero-links {

        margin-top: 27px;

    }


    .hero-link {

        font-size: 1.25rem;

    }


    .slides-document-icon {

        width: 20px;

        height: 25px;

    }


    .event-section {

        margin-top: -40px;

    }


    .event-section,
    .content-section,
    .agenda-container,
    .footer-inner {

        width: calc(100% - 30px);

    }


    .content-section {

        margin-top: 75px;

    }


    .section-heading,
    .agenda-title {

        gap: 15px;

    }


    .section-number {

        width: 42px;

        height: 42px;

        flex-basis: 42px;

    }


    .section-heading h2,
    .agenda-title h2 {

        font-size: 1.9rem;

    }


    .abstract-card {

        padding: 28px 23px;

    }


    .abstract-card p {

        font-size: .91rem;

    }


    .agenda-section {

        margin-top: 75px;

        padding: 70px 0;

    }


    .agenda-card {

        padding: 12px 22px;

    }


    .agenda-card::before {

        left: 45px;

    }


    .agenda-item {

        grid-template-columns:
            45px 1fr;

        gap: 18px;

        padding: 25px 0;

    }


    .agenda-marker {

        width: 38px;

        height: 38px;

        font-size: .65rem;

    }


    .agenda-heading {

        display: block;

    }


    .agenda-heading h3 {

        font-size: 1.1rem;

    }


    .agenda-time {

        display: block;

        margin-top: 8px;

        font-size: .76rem;

    }


    .agenda-content p {

        font-size: .82rem;

    }


    .speaker-photo {

        height: 215px;

        flex-basis: 215px;

    }


    .speaker-photo img {

        width: 145px;

        height: 145px;

    }


    .speaker-info {

        padding: 25px;

    }


    .conference-cta {

        min-height: 340px;

        padding: 65px 25px;

    }


    .conference-cta-inner h2 {

        font-size: 1.75rem;

    }


    .conference-cta-inner p {

        font-size: .95rem;

    }


    .footer-inner {

        min-height: 85px;

    }

}