/* ==========================================================================
   ATMAE 2027 — conference template
   Layout and palette follow the approved ATMAE 2027 mock-up:
   banner (logo row + title) → nav bar → welcome → keynotes → info panels →
   organizers / publishers → single-line footer.
   ========================================================================== */

:root {
    --brand: #1f3fd0;
    --brand-dark: #16309e;
    --navy: #0d2760;
    --navy-deep: #071b45;
    --nav-ink: #21409a;
    --soft: #eef2fe;
    --ink: #17233a;
    --body: #4a5670;
    --muted: #7b8699;
    --line: #e4e8f4;
    --bg: #f7f8fd;
    --white: #fff;
    --radius: 10px;
    --radius-lg: 14px;
    --wrap: min(1600px, calc(100% - 88px));
    /* swap these two lines to change the whole site's typography */
    --font-body: Barlow, "Segoe UI", Arial, sans-serif;
    --font-display: "Barlow Condensed", Barlow, "Arial Narrow", sans-serif;
    --shadow-sm: 0 2px 8px rgba(13, 39, 96, .06);
    --shadow: 0 8px 24px rgba(13, 39, 96, .1);
    --shadow-lg: 0 16px 40px rgba(13, 39, 96, .15);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    margin: 0;
    background: var(--bg);
    color: var(--body);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
main { flex: 1 0 auto; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
h1, h2, h3, h4 { color: var(--ink); font-weight: 700; letter-spacing: 0; }
.container { width: var(--wrap); margin-inline: auto; }
.icon {
    width: 19px; height: 19px;
    flex: 0 0 auto;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --------------------------------------------------------------- buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 40px;
    padding: 8px 19px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    transition: background .2s, color .2s, border-color .2s;
}
.btn-navy { background: var(--navy); border-color: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--brand); border-color: var(--brand); }
.btn-outline { border-color: var(--brand); color: var(--brand); background: var(--white); }
.btn-outline:hover { background: var(--soft); }
.btn-sm { min-height: 34px; padding: 6px 15px; font-size: 14px; }
.link-more {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--brand);
    font-size: 14.5px;
    font-weight: 600;
}
.link-more:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- banner */
.hero {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: #06183a;
}
.hero-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.1s ease;
}
.hero-slide.active { opacity: 1; z-index: 1; }
/* stand-in until Hoang Thang delivers plain background art */
.hero-slide-placeholder { background: linear-gradient(115deg, #dceafe 0%, #a9c8f5 45%, #14418c 100%); }
/* the real photos behind the slider swing from very bright (Golden Bridge
   clouds) to near-black (night sky) — a flat dark scrim keeps contrast for
   the white text steady no matter which one is showing */
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(5, 18, 46, .58) 0%, rgba(5, 18, 46, .72) 100%);
    pointer-events: none;
}
.hero.banner-active::after { background: rgba(255, 255, 255, .08); }
.hero.banner-active .hero-organizers-label,
.hero.banner-active .hero-eyebrow,
.hero.banner-active .hero-sub { color: #102b60; }
.hero.banner-active .hero-organizers-label::before,
.hero.banner-active .hero-organizers-label::after { background: #102b60; opacity: .42; }

.hero-overlay { position: relative; z-index: 2; padding: 30px 0 38px; text-align: center; }

.hero-partners {
    width: min(100%, 1014px);
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    gap: clamp(32px, 4vw, 56px);
    margin: 0 auto 24px;
}
.hero-organizers { margin-bottom: 24px; }
.hero-partner-group { min-width: 0; margin-bottom: 0; }
.hero-organizers-label {
    position: relative;
    display: inline-block;
    margin-bottom: 12px;
    padding: 0 18px;
    color: var(--white);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .17em;
    text-transform: uppercase;
}
.hero-organizers-label::before, .hero-organizers-label::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 64px;
    height: 1px;
    background: var(--white);
    opacity: .45;
}
.hero-organizers-label::before { right: 100%; }
.hero-organizers-label::after { left: 100%; }

.hero-logos {
    width: min(100%, 1014px);
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    justify-content: center;
    gap: 16px;
    margin-inline: auto;
}
.hero-logos-organizers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.hero-logos-cooperators { grid-template-columns: minmax(0, 180px); }
.hero-logos > * {
    width: 100%;
    min-width: 0;
    height: 76px;
    display: grid;
    place-items: center;
    gap: 4px;
    padding: 8px 13px;
    border: 1px solid rgba(16, 54, 111, .28);
    border-radius: 9px;
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 4px 14px rgba(3, 14, 40, .16);
}
.hero-logos img { max-height: 52px; max-width: min(100%, 150px); width: auto; object-fit: contain; }
.hero-logos > .pending img { max-height: 34px; max-width: min(100%, 148px); }
.hero-logo-wordmark {
    grid-template-columns: 46px 1fr;
    align-items: center;
    text-align: left;
}
.hero-logo-wordmark img { width: 44px; height: 44px; }
.hero-logo-wordmark strong {
    color: #102b60;
    font-family: Arial, sans-serif;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.22;
    text-transform: uppercase;
}
.hero-logo-dut { grid-template-columns: 48px 1fr; }
.hero-logo-dut img { width: 46px; height: 46px; }
.hero-logos .pending small {
    color: #b45309;
    font-size: 10px;
    font-weight: 700;
    font-style: italic;
    line-height: 1.2;
}
.hero-logos .pending.indexed small { color: #102b60; font-style: normal; }

.hero-eyebrow {
    margin: 0 0 8px;
    color: rgba(255, 255, 255, .85);
    font-size: clamp(15px, 1.3vw, 19px);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.hero-sub {
    max-width: 1040px;
    margin: 0 auto;
    color: var(--white);
    font-family: var(--font-display);
    font-size: clamp(29px, 3.2vw, 46px);
    font-weight: 600;
    line-height: 1.04;
    letter-spacing: .015em;
    text-transform: uppercase;
}
.hero-sub span, .hero-sub b { display: block; }
.hero-sub b { font-weight: 800; }
.hero h1 {
    margin: 10px 0 0;
    background: linear-gradient(180deg, #65c8ef 0%, #1d77bd 58%, #0b4b8e 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-family: var(--font-display);
    font-size: clamp(64px, 8vw, 112px);
    font-weight: 700;
    line-height: 1.02;
}
.hero-meta {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px 22px;
    margin-top: 20px;
    padding: 12px 38px;
    clip-path: polygon(0% 50%, 3% 0%, 97% 0%, 100% 50%, 97% 100%, 3% 100%);
    background: var(--navy);
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta i { width: 1px; height: 18px; background: rgba(255, 255, 255, .3); }

/* ------------------------------------------------------------------- nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    transition: box-shadow .25s;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.navbar {
    width: var(--wrap);
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 68px;
}
.nav-brand { display: none; }
.main-nav { display: flex; align-items: stretch; align-self: stretch; flex: 1 1 auto; justify-content: flex-end; }
.nav-item { position: relative; display: flex; align-items: stretch; }
.nav-item > button, .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 26px;
    border: 0;
    background: none;
    color: var(--nav-ink);
    font-size: 17.5px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: color .18s;
}
.nav-item > button::after, .nav-link::after {
    content: "";
    position: absolute;
    left: 26px;
    right: 26px;
    bottom: 12px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
    transform: scaleX(0);
    transition: transform .2s;
}
.nav-item > button:hover, .nav-link:hover,
.nav-item.current > button, .nav-link.current { color: var(--brand); }
.nav-item:hover > button::after, .nav-link:hover::after,
.nav-item.current > button::after, .nav-link.current::after { transform: scaleX(1); }
.nav-cta { flex: 0 0 auto; margin-left: 14px; align-self: center; }

.dropdown {
    visibility: hidden;
    opacity: 0;
    transform: translateY(6px);
    position: absolute;
    top: 100%;
    left: 8px;
    min-width: 248px;
    padding: 7px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: .18s ease;
}
.has-menu::before { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 12px; }
.has-menu:hover .dropdown, .has-menu:focus-within .dropdown { visibility: visible; opacity: 1; transform: none; }
.dropdown a {
    display: block;
    padding: 9px 13px;
    border-radius: 7px;
    color: #33445c;
    font-size: 15px;
    font-weight: 500;
}
.dropdown a:hover { background: var(--soft); color: var(--brand); }
.dropdown a.active { background: var(--brand); color: var(--white); }

/* nested links for the three publication-specific author guides */
.dropdown-submenu { position: relative; }
.dropdown-submenu::after {
    content: "";
    position: absolute;
    top: 0;
    left: 100%;
    width: 10px;
    height: 100%;
}
.dropdown-submenu > .dropdown-parent {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}
.dropdown-submenu > .dropdown-parent::after {
    content: "›";
    color: var(--muted);
    font-size: 20px;
    line-height: 1;
}
.submenu {
    visibility: hidden;
    opacity: 0;
    transform: translateX(6px);
    position: absolute;
    top: -7px;
    left: calc(100% + 8px);
    min-width: 230px;
    padding: 7px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: .18s ease;
}
.dropdown-submenu:hover > .submenu,
.dropdown-submenu:focus-within > .submenu { visibility: visible; opacity: 1; transform: none; }

.menu-toggle { display: none; padding: 8px; border: 0; background: none; color: var(--navy); cursor: pointer; }
.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 5px 0;
    background: currentColor;
    transition: transform .25s, opacity .2s;
}
body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.menu-toggle b { display: none; }

/* -------------------------------------------------------------- sections */
.section { padding: 34px 0 0; }
.section:last-child { padding-bottom: 34px; }
.heading-c { margin: 0 0 20px; text-align: center; }
.heading-c h2 {
    display: inline-block;
    margin: 0;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    font-size: clamp(24px, 3.2vw, 34px);
}

/* grid/flex children default to min-width:auto, which lets wide content
   (tables, iframes, long strings) push the whole page sideways */
.panel-grid > *, .duo-grid > *, .speaker-grid > *, .committee-tables > *,
.welcome-card > *, .venue-row > *, .reach-row > *, .instruction-block > *,
.sponsor-intro > *, .sponsor-package > *, .sponsor-entry > *,
.instruction-columns > *, .index-grid > * { min-width: 0; }

.card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------- welcome */
.welcome-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 34px;
    align-items: start;
    padding: 26px 30px;
}
.welcome-card h2 {
    display: inline-block;
    margin: 0 0 14px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    font-size: clamp(24px, 3vw, 33px);
}
.welcome-card p { margin: 0 0 18px; text-align: justify; }
.welcome-card img {
    width: 100%;
    aspect-ratio: 2.2 / 1;
    min-height: 200px;
    object-fit: cover;
    object-position: center top;
    border-radius: var(--radius);
}

/* ------------------------------------------------------------ news popup */
.news-nav-trigger { border: 0; background: none; font-family: inherit; cursor: pointer; }
.news-unread-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin: 0 0 13px 6px;
    flex: 0 0 auto;
    border: 2px solid var(--white);
    border-radius: 50%;
    background: #e11d2e;
    box-sizing: content-box;
    box-shadow: 0 1px 4px rgba(145, 0, 18, .35);
}
.news-popover[hidden] { display: none; }
.news-popover {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 80;
    width: min(460px, calc(100vw - 28px));
    max-height: min(540px, calc(100vh - 92px));
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: 0 18px 45px rgba(0, 20, 55, .24);
    transition: width .2s ease;
}
.news-popover.showing-detail { width: min(680px, calc(100vw - 28px)); }
.news-popover-header {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #0c4b92, #078fc3);
    color: var(--white);
}
.news-popover-header span { color: rgba(255,255,255,.75); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.news-popover-header h2 { margin: 2px 0 0; color: var(--white); font-family: var(--font-display); font-size: 29px; text-transform: uppercase; }
.news-popover-close {
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    border: 1px solid rgba(255,255,255,.42);
    border-radius: 50%;
    background: rgba(255,255,255,.12);
    color: var(--white);
    font-size: 27px;
    line-height: 1;
    cursor: pointer;
}
.news-popover-close:hover { background: rgba(255,255,255,.22); }
.news-popover-list {
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.news-popover-list[hidden], .news-popover-detail[hidden] { display: none; }
.news-popover-item {
    display: grid;
    grid-template-columns: 145px 1fr;
    gap: 20px;
    width: 100%;
    align-items: start;
    padding: 21px 24px;
    border: 0;
    border-top: 1px solid var(--line);
    background: var(--white);
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    transition: background .18s;
}
.news-popover-item:first-child { border-top: 0; }
.news-popover-item:hover { background: var(--soft); }
.news-popover-item time { color: #d5232f; font-size: 13.5px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; }
.news-popover-item span { color: var(--ink); font-size: 17px; font-weight: 600; line-height: 1.45; }
.news-popover-detail {
    min-height: 0;
    padding: 22px 26px 26px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.news-popover-back {
    margin: 0 0 18px;
    padding: 0;
    border: 0;
    background: none;
    color: var(--brand);
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}
.news-popover-back:hover { text-decoration: underline; }
.news-popover-detail > time {
    display: block;
    margin-bottom: 8px;
    color: #d5232f;
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: .03em;
}
.news-popover-detail h3 {
    margin: 0 0 18px;
    color: var(--ink);
    font-size: 24px;
    line-height: 1.25;
}
.news-popover-copy p { margin: 0 0 14px; color: var(--muted); line-height: 1.65; }
.news-popover-copy p:last-child { margin-bottom: 0; }
.news-popover-copy strong { color: var(--ink); }

/* -------------------------------------------------------------- keynotes */
.speaker-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.speaker-card {
    display: flex;
    gap: 20px;
    padding: 18px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow .22s;
}
.speaker-card:hover { box-shadow: var(--shadow); }
.speaker-photo { width: 160px; flex: 0 0 160px; align-self: flex-start; border-radius: var(--radius); overflow: hidden; background: var(--soft); }
.speaker-photo img { width: 100%; height: 190px; object-fit: cover; object-position: center top; }
.speaker-info { display: flex; flex-direction: column; justify-content: center; min-width: 0; }
.speaker-info span { color: var(--brand); font-size: 14px; font-weight: 600; }
.speaker-info h3 { margin: 7px 0 9px; font-size: 22px; line-height: 1.28; }
.speaker-info p { margin: 0; color: var(--body); font-size: 15.5px; line-height: 1.5; }
.speaker-links { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; margin-top: 10px; }
.speaker-info .link-more { margin-top: 0; }

/* ---------------------------------------------------------- info panels  */
.panel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; align-items: stretch; }
.panel {
    display: flex;
    flex-direction: column;
    padding: 18px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.panel h3 {
    display: inline-block;
    align-self: flex-start;
    margin: 0 0 14px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    font-size: 19px;
}
.panel > p { margin: 0 0 16px; font-size: 14.5px; line-height: 1.65; }
.panel .btn, .panel .link-more { margin-top: auto; align-self: flex-start; }

/* important dates */
.date-list { list-style: none; margin: 0; padding: 0 0 0 16px; }
.date-list li { position: relative; padding: 0 0 16px; }
.date-list li:last-child { padding-bottom: 0; }
.date-list li::before {
    content: "";
    position: absolute;
    left: -16px;
    top: 8px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--brand);
}
.date-list li:not(:last-child)::after {
    content: "";
    position: absolute;
    left: -12.5px;
    top: 17px;
    bottom: 2px;
    width: 1px;
    background: var(--line);
}
.date-list time { display: block; color: var(--ink); font-size: 14.5px; font-weight: 700; }
.date-list p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.45; }

/* program rows */
.program-rows { display: grid; gap: 10px; margin-bottom: 16px; }
.program-row {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 11px 12px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.row-ico {
    width: 34px; height: 34px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--white);
    border: 1px solid var(--line);
    color: var(--brand);
}
.program-row b { display: block; color: var(--ink); font-size: 14.5px; font-weight: 600; }
.program-row small { color: var(--muted); font-size: 13px; }

/* topics */
.topic-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.topic-list li { display: flex; gap: 11px; }
.topic-list b {
    flex: 0 0 auto;
    width: 26px; height: 26px;
    display: grid;
    place-items: center;
    border-radius: 7px;
    background: var(--soft);
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
}
.topic-list span { color: var(--body); font-size: 14px; line-height: 1.45; }

/* venue */
.venue-panel b { display: block; color: var(--ink); font-size: 15px; line-height: 1.5; }
.venue-panel p { margin: 10px 0 14px; color: var(--muted); font-size: 13.5px; line-height: 1.5; }
.venue-panel > a {
    display: block;
    width: 100%;
    flex: 1 1 150px;
    min-height: 150px;
    margin-top: 0;
    overflow: hidden;
    border-radius: 8px;
}
.venue-panel img {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 150px;
    object-fit: cover;
    object-position: center;
}

/* -------------------------------------------------- organizers/publishers */
.duo-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 20px; align-items: stretch; }
.duo-card { padding: 22px 24px 26px; }
.duo-card .heading-c { margin-bottom: 24px; }

.org-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px 26px;
}
.org-item { width: 150px; text-align: center; }
.org-box {
    width: 62px; height: 62px;
    margin: 0 auto 9px;
    display: grid;
    place-items: center;
    padding: 7px;
    border-radius: var(--radius);
    background: var(--white);
    border: 1.5px dashed var(--line);
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.3;
}
.org-box.filled { border-style: solid; border-color: var(--line); }
.org-box img { max-height: 46px; max-width: 48px; width: auto; object-fit: contain; }
.org-item small { display: block; color: var(--ink); font-size: 12.5px; font-weight: 700; line-height: 1.4; }

.publisher-list { display: grid; gap: 14px; }
.publisher-box {
    min-height: 62px;
    display: grid;
    place-items: center;
    padding: 12px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    text-align: center;
}
.publisher-box img { max-height: 42px; max-width: 260px; width: auto; object-fit: contain; }
.publisher-box b { color: var(--navy); font-size: 24px; letter-spacing: -.01em; }
.publisher-box small { display: block; color: var(--muted); font-size: 12.5px; font-weight: 500; }
.publisher-box.pending { gap: 6px; }
.publisher-box.pending small { color: #b45309; font-style: italic; font-weight: 600; }
.publisher-box.pending.indexed small { color: var(--muted); font-style: normal; }
.jst-mark { display: flex; align-items: center; justify-content: center; gap: 12px; text-align: left; }
.jst-mark img { max-height: 44px; max-width: 44px; flex: 0 0 auto; }
.jst-mark small { font-size: 11.5px; }

/* ---------------------------------------------------------------- footer */
.site-footer { margin-top: 34px; background: var(--navy); color: rgba(255, 255, 255, .8); }
.site-footer .container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 26px;
    padding: 13px 0;
    font-size: 14.5px;
}
.site-footer span { display: inline-flex; align-items: center; gap: 8px; }
.site-footer i { width: 1px; height: 16px; background: rgba(255, 255, 255, .3); }
.site-footer a:hover { color: #a9c6ff; }

.to-top {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 40;
    width: 40px; height: 40px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 50%;
    background: var(--brand);
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    opacity: 0;
    transform: translateY(14px);
    pointer-events: none;
    transition: .22s;
}
.to-top.visible { opacity: 1; transform: none; pointer-events: auto; cursor: pointer; }

/* =============================================================== subpages */
.page-hero {
    position: relative;
    padding: 30px 0;
    background: linear-gradient(105deg, #061733 0%, #0d2f74 55%, #1546a8 100%);
    color: var(--white);
    overflow: hidden;
}
.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(45% 100% at 90% 50%, rgba(96, 170, 255, .28), transparent 72%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .page-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, .88);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .06em;
}
.page-hero .page-brand img { height: 30px; width: auto; padding: 3px; border-radius: 6px; background: var(--white); }
.page-hero h1 {
    margin: 0;
    color: var(--white);
    font-family: var(--font-display);
    font-size: clamp(30px, 4.5vw, 46px);
    font-weight: 700;
    line-height: 1.14;
}
.page-hero .page-hero-ghost {
    position: absolute;
    right: 2%;
    bottom: -18px;
    z-index: 1;
    color: rgba(255, 255, 255, .06);
    font-family: var(--font-display);
    font-size: 80px;
    font-weight: 800;
    letter-spacing: -.035em;
    line-height: 1;
    white-space: nowrap;
}

.inner-section { padding: 30px 0 40px; }
.inner-container { width: var(--wrap); }
.inner-section > .container > *:first-child { margin-top: 0; }
.inner-section h2 { font-size: clamp(24px, 3vw, 31px); }
.inner-section p, .inner-section li { color: var(--body); }
.inner-section a { color: var(--brand); }
.red-line { width: 58px; height: 3px; margin: 12px 0 18px; border-radius: 2px; background: var(--brand); }

/* committee */
.committee-section { padding-top: 30px; }
.honor-section { margin-bottom: 40px; }
.committee-group-title {
    display: table;
    margin: 0 auto 20px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    text-align: center;
}
.committee-chair-grid { display: grid; gap: 20px; max-width: 1180px; margin-inline: auto; }
.committee-chair-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.committee-chair-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 780px; }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.honor-card {
    display: block;
    padding: 16px 16px 20px;
    text-align: center;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow .22s, transform .22s;
}
a.honor-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.honor-card img { width: 100%; aspect-ratio: 1; object-fit: cover; object-position: center top; border-radius: var(--radius); margin-bottom: 14px; }
.honor-role { display: block; margin-bottom: 6px; color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.honor-card h3 { margin: 0 0 6px; font-size: 16px; line-height: 1.3; }
.honor-card p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.4; }
.committee-tables { display: grid; gap: 24px; }
.committee-table-section {
    min-width: 0;
    padding: 22px 24px 26px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.committee-table-section h2 {
    display: inline-block;
    margin: 0 0 18px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    font-size: 25px;
}
.committee-table-wrap { overflow-x: auto; }
.committee-data-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    color: var(--ink);
    font-size: 15.5px;
    line-height: 1.5;
}
.committee-data-table th, .committee-data-table td {
    padding: 9px 13px;
    border: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}
.committee-data-table th { background: var(--soft); color: var(--navy); font-size: 14.5px; font-weight: 700; }
.committee-data-table tbody tr:nth-child(even) { background: #fafbff; }
.committee-data-table th:first-child, .committee-data-table td:first-child { width: 52px; }
.committee-data-table th:nth-child(2) { width: 28%; }
.committee-data-table th:nth-child(3) { width: 44%; }
.committee-data-table th:nth-child(4) { width: 22%; }
.committee-members-table th:nth-child(2) { width: 32%; }
.committee-members-table th:nth-child(3) { width: auto; }
.program-committee-document > h2 { display: table; }
.program-committee-document > h2:not(:first-child) { margin-top: 28px; }
.program-committee-document .committee-entry { margin: 0 0 14px; color: var(--ink); font-size: 16px; line-height: 1.6; }
.committee-profile-links { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: -7px 0 18px; }
.author-checklist-table th:nth-child(2) { width: auto; }
.author-checklist-table th:nth-child(3), .author-checklist-table td:nth-child(3) { width: 76px; text-align: center; }

/* keynote detail */
.speaker-page { padding-top: 30px; }
.speaker-page .inner-container { display: flex; flex-direction: column; }
.speaker-page #bahman-shabani { order: 3; }
.speaker-page #bui-van-ga { order: 4; }
.speaker-detail { display: grid; grid-template-columns: 240px 1fr; gap: 28px; margin: 0 0 38px; align-items: start; scroll-margin-top: 88px; }
.speaker-bio-card {
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.speaker-bio-card > img { width: 100%; height: 240px; object-fit: cover; object-position: center top; }
.speaker-bio-card > div { padding: 16px; text-align: center; }
.speaker-bio-card h2 { margin: 0 0 6px; font-size: 22px; }
.speaker-bio-card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }
.speaker-article > h3 {
    margin: 0 0 20px;
    padding: 13px 17px;
    border-radius: var(--radius);
    background: linear-gradient(105deg, #0d2f74, #2044c9);
    color: var(--white);
    font-size: 23px;
    line-height: 1.4;
}
.speaker-article h4 { margin: 0 0 4px; font-size: 16.5px; }
.speaker-article p { margin: 0 0 12px; font-size: 16px; line-height: 1.75; }

/* program */
.program-document { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.program-document iframe { display: block; width: 100%; height: 720px; border: 0; }

/* venue page */
.venue-page { padding-top: 30px; }
.venue-row { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.venue-gallery img { width: 100%; height: auto; margin: 0 0 14px; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.venue-copy h2, .reach-copy h2 { margin: 0; font-size: 22px; line-height: 1.45; }
.venue-copy p, .reach-copy p { font-size: 16px; line-height: 1.8; text-align: justify; }
.venue-title { text-align: center; padding: 34px 0 26px; }
.venue-title span, .reach-copy > span {
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
}
.venue-title h2 { margin: 5px 0; font-size: 27px; }
.venue-title .red-line { margin: 12px auto 0; }
.reach-row { grid-template-columns: 1.15fr .85fr; align-items: center; }
.reach-row iframe { width: 100%; height: 380px; border: 0; border-radius: var(--radius); }

/* author instructions */
.instruction-block {
    display: grid;
    grid-template-columns: 1.45fr .55fr;
    gap: 42px;
    padding: 18px 0 38px;
    border-bottom: 1px solid var(--line);
}
.instruction-block.alt { display: block; }
.instruction-block > img { width: 100%; max-height: 400px; object-fit: contain; }
.instructions-page h2, .publication-page h2, .cfp-page h2 {
    display: inline-block;
    margin: 0 0 16px;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--brand);
    color: var(--brand);
    font-size: 27px;
}
.instructions-page p, .instructions-page li { font-size: 16px; line-height: 1.8; }
.instructions-page a, .publication-page a { color: var(--brand); font-weight: 600; }
.submission-links { columns: 2; }
.instruction-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; padding-top: 36px; }

/* publication-specific submission guides */
.submission-chooser-intro { max-width: 850px; margin: 0 auto 28px; text-align: center; }
.submission-chooser-intro p { margin: 0; color: var(--body); font-size: 17px; line-height: 1.75; }
.submission-option-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.submission-option-card {
    display: flex;
    flex-direction: column;
    padding: 26px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.submission-option-card:hover { transform: translateY(-3px); border-color: #b7c8e8; box-shadow: var(--shadow); }
.submission-option-card .option-label { color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.submission-option-card h2 { margin: 8px 0 10px; padding: 0; border: 0; color: var(--navy); font-size: 25px; }
.submission-option-card p { margin: 0 0 20px; color: var(--body); font-size: 15px; line-height: 1.65; }
.submission-option-card .option-meta { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.submission-option-card .link-more { margin-top: 14px; }
.submission-deadline-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 32px;
    margin-top: 26px;
    padding: 18px 22px;
    background: var(--navy);
    border-radius: var(--radius-lg);
    color: var(--white);
}
.submission-deadline-strip span { font-size: 14px; }
.submission-deadline-strip b { margin-right: 5px; }
.cmt-acknowledgment {
    margin-top: 22px;
    padding: 20px 24px;
    border: 1px solid var(--line);
    border-left: 4px solid var(--brand);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}
.cmt-acknowledgment h2 {
    margin: 0 0 8px;
    color: var(--brand);
    font-size: 15px;
    letter-spacing: .05em;
}
.cmt-acknowledgment p { margin: 0; color: var(--body); line-height: 1.65; }

.submission-guide-page { background: #f5f8fc; }
.submission-guide-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
}
.submission-guide-sidebar { position: sticky; top: 92px; display: grid; gap: 18px; }
.guide-side-card {
    padding: 22px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.guide-side-title { margin: 0 0 14px; color: var(--brand); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.guide-facts { margin: 0; }
.guide-facts div { padding: 11px 0; border-top: 1px solid var(--line); }
.guide-facts div:first-child { padding-top: 0; border-top: 0; }
.guide-facts span { display: block; color: var(--muted); font-size: 12px; }
.guide-facts strong { display: block; margin-top: 3px; color: var(--ink); font-size: 14px; font-weight: 600; line-height: 1.45; }
.guide-submit { width: 100%; margin-top: 15px; color: var(--white) !important; text-align: center; }
.guide-submit:hover, .guide-submit:focus, .guide-submit:visited { color: var(--white) !important; }
.guide-anchor-list { display: grid; gap: 8px; }
.guide-anchor-list a { color: var(--body); font-size: 14px; }
.guide-anchor-list a:hover { color: var(--brand); }
.submission-guide-main { display: grid; gap: 18px; }
.guide-intro {
    padding: 24px 28px;
    background: linear-gradient(120deg, #092451, #17499f);
    border-radius: var(--radius-lg);
    color: var(--white);
}
.guide-intro .eyebrow { margin: 0 0 7px; color: #9fc8ff; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.guide-intro h2 { margin: 0; color: var(--white); font-size: 27px; line-height: 1.25; }
.guide-intro p { margin: 12px 0 0; color: rgba(255,255,255,.84); font-size: 15.5px; line-height: 1.7; }
.guide-intro .guide-issn,
.guide-intro .guide-issn a,
.guide-intro a[x-apple-data-detectors],
.guide-intro a[href^="tel:"] {
    color: rgba(255,255,255,.84) !important;
    -webkit-text-fill-color: rgba(255,255,255,.84) !important;
    text-decoration: none !important;
}
.guide-step {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 18px;
    padding: 25px 28px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 90px;
}
.guide-step-number {
    width: 48px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 22px;
    background: #e8f1ff;
    color: var(--brand);
    font-size: 10px;
    font-weight: 700;
    line-height: 1.05;
    text-align: center;
}
.guide-step h2 { margin: 0 0 10px; color: var(--navy); font-size: 24px; }
.guide-step p { margin: 0 0 11px; color: var(--body); font-size: 15.5px; line-height: 1.7; }
.guide-step p:last-child { margin-bottom: 0; }
.guide-step ul { margin: 8px 0 12px; padding-left: 21px; }
.guide-step li { margin: 5px 0; color: var(--body); font-size: 15px; line-height: 1.55; }
.guide-step a, .guide-facts a { color: var(--brand); font-weight: 600; }
.guide-step a:hover, .guide-facts a:hover { text-decoration: underline; }
.guide-paper-type-card {
    max-width: 360px;
    margin-top: 18px;
    padding: 18px 20px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.guide-paper-type-card > span { display: inline-flex; padding: 4px 9px; border-radius: 5px; background: var(--navy); color: var(--white); font-size: 11px; font-weight: 700; }
.guide-paper-type-card > b { display: block; margin-top: 11px; color: var(--navy); font-size: 20px; }
.guide-paper-type-card > p { margin: 3px 0 12px; font-size: 14px; }
.guide-paper-type-card > strong { display: block; margin-top: 10px; color: var(--brand); font-size: 12px; letter-spacing: .1em; }
.guide-paper-type-card > p + strong { margin-top: 0; }
.guide-format-table { margin-top: 12px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.guide-format-row { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 14px 18px; border-top: 1px solid var(--line); }
.guide-format-row:first-child { border-top: 0; }
.guide-format-row b { color: var(--muted); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.guide-format-row span { color: var(--body); font-size: 14.5px; line-height: 1.55; }
.integrity-note { margin-top: 15px; padding: 16px 18px; background: #f0f9f5; border-left: 4px solid #16a36a; border-radius: 0 var(--radius) var(--radius) 0; }
.integrity-note b { display: block; margin-bottom: 4px; color: #0d5e42; }
.integrity-note p { font-size: 14px; }
.registration-note { margin-top: 15px; padding: 15px 18px; background: var(--soft); border: 1px solid #d5e2f8; border-radius: var(--radius); color: var(--ink); font-size: 14.5px; line-height: 1.6; }
.guide-publication-label { margin-top: 16px; color: var(--brand); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-align: right; }

@media (max-width: 1000px) {
    .dropdown-submenu::after { display: none; }
    .dropdown-submenu > .dropdown-parent::after { content: ""; }
    .submenu {
        position: static;
        visibility: visible;
        opacity: 1;
        transform: none;
        display: block;
        min-width: 0;
        padding: 0 0 3px 18px;
        border: 0;
        box-shadow: none;
    }
    .submenu a { position: relative; font-size: 14px; }
    .submenu a::before { content: "—"; margin-right: 7px; color: var(--muted); }
    .news-unread-dot { margin: 0 8px 0 auto; border-color: var(--white); }
    .news-popover {
        position: static;
        width: 100%;
        max-height: min(440px, calc(100vh - 150px));
        margin-bottom: 10px;
        border-radius: var(--radius);
        box-shadow: var(--shadow-sm);
    }
    .news-popover.showing-detail { width: 100%; }
    .submission-guide-layout { grid-template-columns: 1fr; }
    .submission-guide-sidebar { position: static; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .submission-option-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .news-popover-header { padding: 17px 18px; }
    .news-popover-header h2 { font-size: 25px; }
    .news-popover-item { grid-template-columns: 1fr; gap: 6px; padding: 18px; }
    .news-popover-detail { padding: 18px; }
    .news-popover-detail h3 { font-size: 21px; }
    .submission-guide-sidebar { grid-template-columns: 1fr; }
    .guide-side-card.on-this-page { display: none; }
    .guide-intro, .guide-step { padding: 21px 18px; }
    .guide-step { grid-template-columns: 38px 1fr; gap: 12px; }
    .guide-step-number { width: 40px; height: 38px; font-size: 9px; }
    .guide-step h2 { font-size: 21px; }
    .guide-format-row { grid-template-columns: 1fr; gap: 5px; padding: 13px 15px; }
}

/* call for papers */
.cfp-document {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 48px 58px 56px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    color: var(--ink);
}
.cfp-document p {
    margin: 0 0 18px;
    font-size: 17px;
    line-height: 1.7;
    text-align: left;
}
.cfp-document .cfp-document-title,
.cfp-document .cfp-section-title {
    display: block;
    margin: 0 0 18px;
    padding: 0;
    border: 0;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 28px;
    line-height: 1.25;
    text-align: left;
}
.cfp-document .cfp-conference-name { margin-bottom: 8px; }
.cfp-document .cfp-conference-code { margin-bottom: 18px; }
.cfp-document .cfp-meta { margin-bottom: 26px; }
.cfp-document .cfp-section-title { margin-top: 30px; }
.cfp-topic {
    display: block;
    margin: 0 0 20px;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}
.cfp-topic h3 {
    margin: 0 0 3px;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.5;
    font-weight: 700;
}
.cfp-topic p { margin: 0; }
.cfp-poster {
    width: 100%;
    max-width: 1180px;
    margin: 38px auto 0;
}
.cfp-poster img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}
.clone-button {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 7px 15px;
    border-radius: 8px;
    background: var(--navy);
    color: var(--white) !important;
    font-size: 15px;
    font-weight: 600;
}
.clone-button:hover { background: var(--brand); }

/* publication */
.publication-page { min-height: 480px; }
.publication-intro { max-width: none; font-size: 16.5px; line-height: 1.8; }
.index-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 30px 0; }
.index-grid > div {
    height: 92px;
    padding: 14px;
    display: grid;
    place-items: center;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.index-grid img { max-height: 54px; max-width: 150px; }
.editors {
    margin-top: 38px;
    padding: 14px 20px;
    border-left: 4px solid var(--brand);
    border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--white);
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.editors h2 { margin: 0 0 4px; border: 0; padding: 0; font-size: 21px; }
.editors p { margin: 0; }

/* sponsors */
.sponsor-page p, .sponsor-list-page p { font-size: 16.5px; line-height: 1.8; }
.sponsor-list-page p { text-align: justify; }
.sponsor-intro, .sponsor-package { display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: center; margin-bottom: 40px; }
.sponsor-package { grid-template-columns: .7fr 1.3fr; }
.sponsor-intro img, .sponsor-package img { width: 100%; max-height: 480px; object-fit: contain; }
.sponsor-vertical { width: 100%; max-width: none; margin: 0; }
.sponsor-copy p { margin: 0 0 20px; }
.sponsor-benefits { margin: 24px 0 34px; }
.sponsor-benefits img { display: block; width: 100%; height: auto; border-radius: var(--radius); }
.sponsor-contact {
    padding: 18px 22px;
    border: 1px solid var(--line);
    border-left: 4px solid var(--brand);
    border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--white);
}
.sponsor-contact h3 { margin: 0 0 8px; color: var(--navy); }
.sponsor-contact p { margin: 0; }
.sponsor-contact a { color: var(--brand); font-weight: 600; }
.sponsor-level { margin: 8px 0 26px; color: var(--brand); font-size: 28px; text-align: center; }
.sponsor-entry {
    display: grid;
    grid-template-columns: 32% 1fr;
    gap: 34px;
    padding: 0 0 38px;
    margin: 0 0 38px;
    border-bottom: 1px solid var(--line);
}
.sponsor-entry aside {
    min-height: 150px;
    padding: 18px;
    display: grid;
    place-items: center;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}
.sponsor-entry aside img { max-height: 130px; width: 100%; object-fit: contain; }
.sponsor-entry h3 { margin: 0 0 10px; font-size: 22px; }

/* registration */
.registration-page { background: #f5f8fc; }
.registration-shell { display: grid; min-width: 0; gap: 22px; }
.registration-intro {
    margin: 0;
    color: var(--navy) !important;
    font-size: 18px;
    font-weight: 500;
    line-height: 1.6;
}
.registration-block { display: grid; min-width: 0; gap: 14px; }
.registration-band {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0;
    padding: 0 18px 0 0;
    min-height: 46px;
    border-radius: 22px 8px 8px 22px;
    background: linear-gradient(90deg, #e9f4ff, #dceeff);
    color: var(--navy);
    font-size: 20px !important;
    font-weight: 700;
    letter-spacing: .01em;
    text-transform: uppercase;
}
.registration-band > span {
    display: grid;
    place-items: center;
    align-self: stretch;
    width: 46px;
    flex: 0 0 46px;
    border-radius: 50%;
    background: #126df4;
    color: var(--white);
    font-size: 27px;
    font-weight: 500;
}
.registration-table-wrap {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    border-radius: 8px;
    -webkit-overflow-scrolling: touch;
}
.registration-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    color: var(--navy);
    font-size: 15.5px;
    line-height: 1.35;
}
.registration-table th,
.registration-table td { padding: 10px 14px; border: 1px solid #98bce9; }
.registration-table thead th {
    background: linear-gradient(180deg, #dcebfb, #c9e1f8);
    color: var(--navy);
    font-weight: 700;
    text-align: center;
}
.registration-table tbody td { font-weight: 500; }
.registration-fee-table th:first-child,
.registration-fee-table td:first-child { width: 62px; text-align: center; }
.registration-fee-table th:nth-child(2) { width: 55%; }
.registration-fee-table td:nth-child(n+3),
.registration-companion-table td { text-align: center; font-weight: 700; }
.registration-discount {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0;
    padding: 12px 20px;
    border-radius: 7px;
    background: linear-gradient(90deg, #fff8d9, #fff3b8);
    color: #151515 !important;
    font-size: 17px;
}
.registration-discount > span { color: #f2bf00; font-size: 33px; line-height: 1; }
.registration-includes h3 { margin: 0 0 4px; color: #111; font-size: 17px; }
.registration-includes ul,
.registration-notes ul { margin: 0; padding: 0; list-style: none; }
.registration-includes li,
.registration-notes li {
    position: relative;
    padding-left: 24px;
    color: var(--navy);
    font-size: 16px;
    line-height: 1.45;
}
.registration-includes li::before,
.registration-notes li::before {
    content: "";
    position: absolute;
    left: 5px;
    top: .62em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #1378f3;
}
.registration-notice {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
    padding: 16px 20px;
    border-radius: 9px;
    background: linear-gradient(90deg, #edf7ff, #e5f2fd);
}
.registration-notice-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #1455df;
    color: var(--white);
}
.registration-notice-icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.registration-notice h2 { margin: 0; color: var(--navy); font-size: 21px; }
.registration-notice p { margin: 2px 0 0; color: var(--navy); font-size: 15.5px; line-height: 1.5; }
.registration-form-links { display: flex; flex-wrap: wrap; gap: 12px 32px; margin-top: 10px; }
.registration-form-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 8px 16px;
    border: 1px solid #a5c7ec;
    border-radius: 8px;
    background: var(--white);
    color: var(--brand);
    font-size: 18px;
    font-weight: 600;
}
.registration-form-link:hover,
.registration-form-link:focus {
    border-color: var(--brand);
    background: var(--brand);
    color: var(--white);
}
.registration-deadline { background: linear-gradient(90deg, #fff0f1, #ffe9ec); }
.registration-deadline .registration-notice-icon { border-radius: 9px; background: #f01625; }
.registration-deadline h2,
.registration-deadline b { color: #e31322; }
.registration-notes .registration-notice-icon { background: #1474e9; }
.registration-payment { background: linear-gradient(90deg, #eaf6ff, #e0effb); }
.registration-payment .registration-notice-icon { border-radius: 7px; background: transparent; color: #1769da; }
.registration-payment > div { min-width: 0; }
.registration-bank-table { min-width: 940px; margin-top: 12px; font-size: 14px; }
.registration-bank-table th:first-child { width: 190px; text-align: left; }
.registration-bank-table tbody th { background: #edf5fc; font-weight: 600; }
.registration-payment-subject { margin-top: 10px !important; }


/* ============================================================ responsive */
@media (max-width: 1680px) {
    .speaker-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1500px) {
    .nav-item > button, .nav-link { padding: 0 13px; font-size: 15px; }
    .nav-item > button::after, .nav-link::after { left: 13px; right: 13px; }
    .nav-cta { margin-left: 5px; padding-inline: 13px; }
}

@media (max-width: 1180px) {
    .nav-item > button, .nav-link { padding: 0 14px; font-size: 15px; }
    .nav-item > button::after, .nav-link::after { left: 14px; right: 14px; }
    .panel-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1000px) {
    .navbar { min-height: 64px; }
    .nav-brand {
        display: flex;
        align-items: center;
        gap: 9px;
        color: var(--navy);
        font-family: var(--font-display);
        font-size: 24px;
        font-weight: 700;
    }
    .nav-brand img { height: 34px; width: auto; }
    .menu-toggle { display: block; margin-left: auto; order: 2; }
    .nav-cta { display: none; }
    /* the header sits below the banner on the home page, so pin it to the
       viewport while the drawer is open — otherwise the drawer opens 64px
       from the top of the screen while the toggle is far further down */
    body.menu-open .site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 70; }
    .main-nav {
        position: fixed;
        inset: 64px 0 0;
        display: block;
        padding: 14px 18px 40px;
        background: var(--white);
        overflow-y: auto;
        transform: translateX(-100%);
        transition: transform .28s;
    }
    .main-nav.open { transform: none; }
    .nav-item { display: block; border-bottom: 1px solid var(--line); }
    .nav-link { display: flex; border-bottom: 1px solid var(--line); }
    .nav-item > button, .nav-link { width: 100%; min-height: 50px; padding: 0 4px; justify-content: space-between; }
    .nav-item > button::after, .nav-link::after { display: none; }
    /* chevron on the three items that expand */
    .has-menu > button::before {
        content: "";
        order: 2;
        width: 8px;
        height: 8px;
        margin-right: 6px;
        border-right: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: rotate(45deg) translate(-2px, -2px);
        transition: transform .2s;
    }
    .nav-item.expanded > button::before { transform: rotate(-135deg) translate(-1px, -1px); }
    .dropdown {
        position: static;
        display: none;
        visibility: visible;
        opacity: 1;
        transform: none;
        min-width: 0;
        padding: 4px 0 10px;
        border: 0;
        box-shadow: none;
    }
    .nav-item.expanded .dropdown { display: block; }
    .dropdown a { margin-bottom: 4px; background: var(--bg); }
    .main-nav .nav-cta { display: inline-flex; width: 100%; margin: 16px 0 0; }
    .duo-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
    :root { --wrap: calc(100% - 32px); }
    .hero-overlay { padding: 30px 0 34px; }
    .hero-logos { gap: 8px; }
    .hero-logos > * { width: 100%; min-width: 0; height: 68px; padding: 6px; overflow: hidden; }
    .hero-logos img { max-height: 40px; max-width: min(100%, 92px); }
    .hero-logo-wordmark,
    .hero-logo-dut { grid-template-columns: 30px minmax(0, 1fr); }
    .hero-logo-wordmark img,
    .hero-logo-dut img { width: 29px; height: 29px; }
    .hero-logo-wordmark strong {
        min-width: 0;
        font-size: clamp(5.8px, .86vw, 7.4px);
        line-height: 1.08;
        overflow-wrap: anywhere;
    }
    .hero-logos > .pending img { max-width: min(100%, 86px); max-height: 27px; }
    .hero-logos .pending small { font-size: 7px; }
    .welcome-card { grid-template-columns: 1fr; gap: 24px; padding: 22px; }
    .welcome-card img { aspect-ratio: 16 / 9; }
    .speaker-grid { grid-template-columns: 1fr; }
    .honor-grid { grid-template-columns: 1fr 1fr; }
    .panel-grid { grid-template-columns: 1fr 1fr; }
    .venue-row, .reach-row, .instruction-block, .sponsor-intro, .sponsor-package, .sponsor-entry {
        grid-template-columns: 1fr;
        gap: 26px;
    }
    .speaker-detail { grid-template-columns: 200px 1fr; gap: 22px; }
    .index-grid { grid-template-columns: repeat(2, 1fr); }
    .instruction-columns { grid-template-columns: 1fr; }
    .registration-fee-table { min-width: 760px; }
    .registration-companion-table { min-width: 620px; }
}

@media (max-width: 620px) {
    :root { --wrap: calc(100% - 26px); }
    .main-nav { inset: 64px 0 0; }
    .nav-brand { font-size: 21px; }
    .nav-brand img { height: 30px; }
    .hero-overlay { padding: 24px 0 28px; }
    .hero-partners { grid-template-columns: 1fr; gap: 14px; margin-bottom: 16px; }
    .hero-organizers { margin-bottom: 16px; }
    .hero-partner-group { margin-bottom: 0; }
    .hero-organizers-label { font-size: 10.5px; margin-bottom: 10px; }
    .hero-organizers-label::before, .hero-organizers-label::after { width: 24px; }
    .hero-logos {
        width: min(100%, 340px);
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        margin-inline: auto;
    }
    .hero-logos > * { width: 100%; min-width: 0; height: 62px; gap: 3px; padding: 6px 8px; font-size: 10px; }
    .hero-logos > :last-child { grid-column: 1 / -1; width: calc(50% - 4px); justify-self: center; }
    .hero-partners .hero-logos > :last-child { grid-column: auto; width: 100%; justify-self: stretch; }
    .hero-logos-organizers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hero-logos-cooperators { grid-template-columns: minmax(0, 180px); }
    .hero-logos img { max-height: 32px; max-width: 108px; }
    .hero-logo-wordmark { grid-template-columns: 31px minmax(0, 1fr); }
    .hero-logo-wordmark img, .hero-logo-dut img { width: 30px; height: 30px; }
    .hero-logo-wordmark strong { min-width: 0; font-size: 6.5px; line-height: 1.15; overflow-wrap: anywhere; }
    .hero-logos > .pending img { max-height: 26px; }
    .hero-logos .pending small { font-size: 7.5px; }
    .hero-eyebrow { font-size: 12px; }
    .hero-sub { max-width: 100%; font-size: clamp(24px, 7.4vw, 30px); line-height: 1.08; }
    .hero h1 { font-size: clamp(54px, 16vw, 68px); }
    .hero-meta { max-width: 100%; gap: 6px 14px; padding: 10px 22px; font-size: 12px; }
    .hero-meta i { display: none; }
    .honor-grid { grid-template-columns: 1fr; }
    .committee-chair-grid-3, .committee-chair-grid-2 { grid-template-columns: 1fr; }
    .panel-grid { grid-template-columns: 1fr; }
    .page-hero { padding: 22px 0; }
    .page-hero .page-hero-ghost { font-size: 42px; bottom: -10px; }
    .inner-section { padding: 24px 0 34px; }
    .cfp-document { padding: 28px 22px 34px; }
    .cfp-document p { font-size: 16px; line-height: 1.65; }
    .cfp-document .cfp-document-title,
    .cfp-document .cfp-section-title { font-size: 24px; }
    .committee-table-section { padding: 18px 15px 22px; }
    .speaker-detail { grid-template-columns: 1fr; }
    .speaker-bio-card { max-width: 270px; }
    .speaker-article > h3 { font-size: 18px; }
    .index-grid { grid-template-columns: 1fr; }
    .submission-links { columns: 1; }
    .committee-data-table { min-width: 560px; font-size: 14px; }
    .committee-data-table th { font-size: 13px; }
    .committee-data-table th, .committee-data-table td { padding: 8px 9px; }
    .org-item { width: 128px; }
    /* justify needs a wide measure; at ~300px it opens rivers between words */
    .welcome-card p, .venue-copy p, .reach-copy p, .sponsor-list-page p { text-align: left; }
    .duo-card .heading-c h2 { font-size: 22px; }
    .speaker-card { gap: 14px; padding: 14px; }
    .speaker-photo { width: 118px; flex: 0 0 118px; }
    .speaker-photo img { height: 142px; }
    .speaker-info h3 { font-size: 19px; }
    .speaker-info p { font-size: 14px; }
    .registration-shell { gap: 18px; }
    .registration-intro { font-size: 16px; }
    .registration-band {
        min-height: 42px;
        padding-right: 12px;
        border-radius: 21px 7px 7px 21px;
        font-size: 16px !important;
        line-height: 1.2;
    }
    .registration-band > span { width: 42px; flex-basis: 42px; font-size: 23px; }
    .registration-table { font-size: 14px; }
    .registration-discount { align-items: flex-start; padding: 12px 14px; font-size: 15px; line-height: 1.45; }
    .registration-discount > span { font-size: 27px; }
    .registration-notice { grid-template-columns: 36px minmax(0, 1fr); gap: 11px; padding: 15px 13px; }
    .registration-notice-icon { width: 34px; height: 34px; }
    .registration-notice-icon svg { width: 20px; height: 20px; }
    .registration-notice h2 { font-size: 19px; }
    .registration-form-links { display: grid; gap: 9px; }
    .registration-form-link { width: 100%; justify-content: space-between; font-size: 16px; }
    .registration-includes li, .registration-notes li { font-size: 15px; }
    .registration-page .registration-table-wrap { overflow: visible; }
    .registration-fee-table,
    .registration-companion-table,
    .registration-bank-table { min-width: 0; border-collapse: separate; background: transparent; }
    .registration-fee-table thead,
    .registration-companion-table thead,
    .registration-bank-table thead { display: none; }
    .registration-fee-table tbody,
    .registration-companion-table tbody,
    .registration-bank-table tbody { display: grid; gap: 10px; }
    .registration-fee-table tbody tr,
    .registration-companion-table tbody tr,
    .registration-bank-table tbody tr {
        display: grid;
        overflow: hidden;
        border: 1px solid #a8c7eb;
        border-radius: 8px;
        background: var(--white);
    }
    .registration-fee-table tbody tr { grid-template-columns: 42px 1fr 1fr; }
    .registration-fee-table td,
    .registration-companion-table td,
    .registration-bank-table td,
    .registration-bank-table tbody th { width: auto !important; border: 0; }
    .registration-fee-table td:first-child {
        grid-row: 1 / 3;
        display: grid;
        place-items: center;
        background: #e6f1fc;
        font-size: 18px;
        font-weight: 700;
    }
    .registration-fee-table td:nth-child(2) {
        grid-column: 2 / 4;
        border-bottom: 1px solid #d7e5f5;
        font-weight: 600;
    }
    .registration-fee-table td:nth-child(n+3),
    .registration-companion-table td:nth-child(n+2) { text-align: left; }
    .registration-fee-table td[data-currency]::before,
    .registration-companion-table td[data-currency]::before,
    .registration-bank-table td[data-currency]::before {
        content: attr(data-currency);
        display: block;
        margin-bottom: 3px;
        color: var(--muted);
        font-size: 10px;
        font-weight: 700;
        letter-spacing: .08em;
        text-transform: uppercase;
    }
    .registration-companion-table tbody tr { grid-template-columns: 1fr 1fr; }
    .registration-companion-table td:first-child {
        grid-column: 1 / -1;
        border-bottom: 1px solid #d7e5f5;
        font-weight: 600;
    }
    .registration-bank-table { margin-top: 10px; }
    .registration-bank-table tbody th {
        padding: 10px 12px;
        border-bottom: 1px solid #c6daf1;
        background: #dcecfb;
        color: var(--navy);
        font-size: 15px;
        text-align: left;
    }
    .registration-bank-table td { padding: 10px 12px; border-bottom: 1px solid #e0eaf5; }
    .registration-bank-table td:last-child { border-bottom: 0; }
}

/* Keep the five-card organizer row fluid on tablets and small laptops too.
   The wordmarks need to shrink with their cards, not overflow them. */
@media (min-width: 621px) and (max-width: 1100px) {
    .hero-logos { gap: 8px; }
    .hero-logos > * { min-width: 0; height: 68px; padding: 6px; overflow: hidden; }
    .hero-logos img { max-width: min(100%, 92px); max-height: 40px; }
    .hero-logo-wordmark,
    .hero-logo-dut { grid-template-columns: 30px minmax(0, 1fr); }
    .hero-logo-wordmark img,
    .hero-logo-dut img { width: 29px; height: 29px; }
    .hero-logo-wordmark strong {
        min-width: 0;
        font-size: clamp(5.8px, .68vw, 7.4px);
        line-height: 1.08;
        overflow-wrap: anywhere;
    }
    .hero-logos > .pending img { max-width: min(100%, 86px); max-height: 27px; }
    .hero-logos .pending small { font-size: 7px; }
}

/* Phones in landscape have enough horizontal space for one logo row, but
   very little vertical space. Keep every organizer card inside the banner
   and let all five cards share the available width instead of overflowing. */
@media (orientation: landscape) and (max-width: 980px) and (max-height: 560px) {
    :root { --wrap: calc(100% - 20px); }
    .hero-overlay { padding: 14px 0 18px; }
    .hero-organizers { margin-bottom: 12px; }
    .hero-organizers-label { margin-bottom: 7px; font-size: 9px; }
    .hero-organizers-label::before, .hero-organizers-label::after { width: 28px; }
    .hero-logos {
        width: min(100%, 780px);
        display: flex;
        flex-wrap: nowrap;
        gap: 6px;
        margin-inline: auto;
    }
    .hero-logos > *,
    .hero-logos > :last-child {
        flex: 1 1 0;
        width: auto;
        min-width: 0;
        height: 56px;
        padding: 5px 6px;
    }
    .hero-logos > :last-child { justify-self: auto; }
    .hero-logos img { max-width: 94px; max-height: 34px; }
    .hero-logo-wordmark,
    .hero-logo-dut { grid-template-columns: 28px minmax(0, 1fr); }
    .hero-logo-wordmark img,
    .hero-logo-dut img { width: 27px; height: 27px; }
    .hero-logo-wordmark strong { min-width: 0; font-size: 5.8px; line-height: 1.08; }
    .hero-logos > .pending img { max-width: 90px; max-height: 23px; }
    .hero-logos .pending small { font-size: 6.5px; }
    .hero-eyebrow { margin-bottom: 4px; font-size: 10px; }
    .hero-sub { font-size: clamp(20px, 3.5vw, 28px); line-height: 1; }
    .hero h1 { margin-top: 5px; font-size: clamp(46px, 8vw, 66px); }
    .hero-meta { margin-top: 8px; padding: 7px 22px; font-size: 11px; }
}