/* iSSG 2026 visual system
   Lightweight override layer: preserves the existing MVC, Firestore models and CMS. */

:root {
  --issg-cyan: #03e4fb;
  --issg-blue: #04539b;
  --issg-graphite: #4b5569;
  --issg-ink: #0e1724;
  --issg-paper: #f5f8fb;
  --issg-line: #dbe5ee;
  --issg-dark: #0e1724;
  --issg-accent-dark: #04539b;
  --issg-muted: #5a6b7f;
  --issg-silver: #dbe5ee;
  --issg-background: #f5f8fb;
  --issg-background-gray: #edf4f9;
  --issg-sage: #dffaff;
  --font-body: "Acumin Variable Concept", "Segoe UI", Arial, sans-serif;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --shadow-soft: 0 18px 55px rgba(14, 23, 36, 0.09);
  --shadow-lift: 0 26px 70px rgba(14, 23, 36, 0.16);
}

body {
  color: var(--issg-ink);
  background: var(--issg-paper);
  line-height: 1.6;
  letter-spacing: 0;
}

h1,
h2,
h3,
h4 {
  letter-spacing: -0.035em;
}

.container {
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.container--5xl,
.container--6xl,
.container--7xl {
  max-width: 86rem;
}

.h-2xl {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 0.98;
}

.h-xl {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.02;
}

.eyebrow {
  color: var(--issg-blue);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
}

/* Header */
.navbar {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(14, 23, 36, 0.08);
  backdrop-filter: blur(18px);
}

.navbar__bar {
  min-height: 78px;
  padding-inline: 0;
}

.navbar__inner {
  max-width: 90rem;
  padding-inline: clamp(1rem, 4vw, 3rem);
  gap: clamp(1rem, 2vw, 2.25rem);
}

.navbar__brand {
  flex: 0 1 auto;
}

.navbar__logo {
  width: clamp(152px, 16vw, 218px);
  height: 52px;
  object-fit: contain;
  object-position: left center;
}

.navbar__name {
  display: none !important;
}

.navbar__links {
  margin-left: auto;
  gap: 0.1rem;
}

.navbar__link {
  color: #405064;
  padding: 0.65rem 0.8rem;
  border: 0;
  font-size: 0.84rem;
  letter-spacing: 0;
}

.navbar__link:hover,
.navbar__link.is-active {
  color: var(--issg-blue);
}

.navbar__link.is-active::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--issg-cyan);
  margin-left: 0.15rem;
}

.navbar__menu {
  top: calc(100% + 0.55rem);
  border: 1px solid var(--issg-line);
  border-radius: 1rem;
  box-shadow: var(--shadow-soft);
  padding: 0.5rem;
}

.navbar__menu a {
  border-radius: 0.65rem;
  color: var(--issg-ink);
}

.navbar__menu a:hover {
  background: #edfaff;
  color: var(--issg-blue);
}

.navbar__right {
  margin-left: 0;
}

.navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 42px;
  padding: 0 1rem;
  border-radius: 999px;
  color: #fff;
  background: var(--issg-blue);
  font-size: 0.82rem;
  font-weight: 700;
  transition: transform 0.2s, background 0.2s;
}

.navbar__cta:hover {
  background: #03457f;
  transform: translateY(-1px);
}

.navbar__toggle {
  color: var(--issg-ink);
  margin: 0 0 0 auto;
  order: 2;
}

.navbar__toggle:hover {
  background: #edf4f9;
}

.navbar__mobile {
  background: #fff;
  border-top: 1px solid var(--issg-line);
  padding: 0.5rem 1.25rem 1rem;
  box-shadow: 0 20px 35px rgba(14, 23, 36, 0.1);
  max-height: min(70vh, 520px);
  overflow-y: auto;
}

.navbar__mobile a {
  color: #34465a;
  padding: 0.62rem 0.5rem;
}

.navbar__mobile a:hover,
.navbar__mobile a.is-active {
  color: var(--issg-blue);
}

.navbar__mobile-sub {
  border-left-color: var(--issg-line);
  margin-bottom: 0.15rem;
}

@media (max-width: 47.99em) {
  .navbar__brand {
    order: 1;
  }
  .navbar__right {
    display: none;
  }
  .navbar__inner {
    justify-content: space-between;
  }
}

/* Final hero: full image directly below navigation, minimal overlay copy. */
.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(520px, 72vh, 760px);
  padding: 0;
  background: var(--issg-ink);
}

.hero__slides {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.hero__scrim {
  display: block;
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 23, 36, 0.82) 0%, rgba(14, 23, 36, 0.28) 58%, rgba(14, 23, 36, 0.08) 100%);
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  width: 100%;
  min-height: clamp(520px, 72vh, 760px);
  padding-block: 0 clamp(3.5rem, 8vw, 6rem);
}

.hero__copy {
  width: 100%;
  max-width: 44rem;
  margin: 0;
  padding: 0;
  text-align: left;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.hero__kicker,
.hero__lead,
.hero__actions .btn:nth-child(2) {
  display: none;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 {
    max-width: 42rem;
    margin: 0 0 1.5rem;
    color: #fff;
    background: none;
    -webkit-background-clip: border-box;
    background-clip: border-box;
    -webkit-text-fill-color: #fff;
    font-size: clamp(2.8rem, 6vw, 5.7rem);
    line-height: 0.94;
  }
}

.hero__actions {
  justify-content: flex-start;
}

.hero .btn--pill-light {
  min-height: 44px;
  padding: 0 1.25rem;
}

.hero__dots {
  z-index: 3;
  left: 50%;
  right: auto;
  bottom: 1.5rem;
  transform: translateX(-50%);
}

@media (max-width: 47.99em) {
  .hero,
  .hero__inner {
    min-height: 560px;
  }

  .hero__inner {
    padding-block: 0 4.5rem;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 12vw, 4rem);
  }
}

@media (min-width: 62em) {
  .focus__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .focus-card,
  .focus-card:first-child,
  .focus-card:nth-child(6) {
    grid-column: span 1;
  }
}

/* Hero correction: concise introduction first, strong imagery underneath. */
.hero {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 0;
  padding: 0 0 clamp(1.5rem, 4vw, 3rem);
  background: #fff;
}

.hero::before {
  display: none;
}

.hero__inner {
  order: 1;
  display: block;
  width: 100%;
  min-height: 0;
  padding-block: clamp(3.5rem, 7vw, 6rem) clamp(2rem, 4vw, 3rem);
}

.hero__copy {
  width: 100%;
  max-width: 58rem;
  margin-inline: auto;
  padding: 0;
  text-align: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero__kicker {
  margin: 0 auto 1rem;
}

.hero h1 {
  max-width: 50rem;
  margin: 0 auto 1rem;
  font-size: clamp(2.7rem, 5.5vw, 5rem);
  line-height: 0.98;
}

.hero__lead {
  max-width: 42rem;
  margin: 0 auto 1.75rem;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.55;
}

.hero__actions {
  justify-content: center;
}

.hero__slides {
  position: relative;
  order: 2;
  inset: auto;
  width: calc(100% - clamp(2rem, 8vw, 7rem));
  max-width: 86rem;
  height: clamp(360px, 50vw, 610px);
  margin-inline: auto;
  border-radius: clamp(1rem, 2vw, 1.75rem);
  box-shadow: 0 20px 55px rgba(14, 23, 36, 0.12);
}

.hero__dots {
  left: 50%;
  right: auto;
  bottom: clamp(2.6rem, 5vw, 4.3rem);
  transform: translateX(-50%);
}

@media (max-width: 47.99em) {
  .hero {
    min-height: 0;
    padding-bottom: 1rem;
  }

  .hero__inner {
    padding-block: 2.75rem 1.75rem;
  }

  .hero__copy {
    padding-inline: 0;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 11vw, 3.5rem);
  }

  .hero__lead {
    font-size: 0.98rem;
  }

  .hero__slides {
    position: relative;
    inset: auto;
    width: calc(100% - 2rem);
    height: clamp(270px, 76vw, 390px);
  }

  .hero__dots {
    right: auto;
    bottom: 2rem;
  }
}

/* White-first iSSG finish: retain the official gradient without grey bands. */
:root {
  --issg-paper: #ffffff;
  --issg-line: #d9eef8;
  --issg-background: #ffffff;
  --issg-background-gray: #f4fcff;
}

body,
.band--white,
.band--tint,
.band--blue,
.focus,
.featured,
.home-contact,
.team-contact,
.research-page,
.news-page {
  background: #fff;
}

.hero {
  background:
    radial-gradient(circle at 12% 12%, rgba(3, 228, 251, 0.11), transparent 27%),
    radial-gradient(circle at 92% 88%, rgba(4, 83, 155, 0.07), transparent 25%),
    #fff;
}

.hero__copy,
.research-head,
.about-hero,
.team-banner,
.recent,
.stats {
  background-color: #fff;
}

.stats,
.recent,
.latest,
.focus,
.featured,
.home-contact,
.team-contact {
  border-color: var(--issg-line);
}

.focus,
.featured,
.home-contact,
.team-contact {
  border-top: 1px solid var(--issg-line);
}

.input,
.textarea,
.home-contact .form-card .input,
.home-contact .form-card .textarea,
.team-contact .form-card .input,
.team-contact .form-card .textarea {
  background: #fff;
  border-color: var(--issg-line);
}

.about-hero,
.team-banner {
  background:
    url("/images/brand/issg-mark-primary.png") 92% center / 360px no-repeat,
    #fff;
}

.research-head {
  background:
    radial-gradient(circle at 88% 30%, rgba(3, 228, 251, 0.13), transparent 27%),
    #fff;
}

.stat:hover,
.recent .pub-row,
.event-item__date,
.pub-item,
.project-card,
.mini-card,
.academic-block,
.person-card,
.news-card,
.calendar,
.event-item {
  background-color: #fff;
}

.btn--solid,
.navbar__cta,
.hero .btn--pill-light,
.chip.is-active,
.calendar__day.has-events {
  background: linear-gradient(100deg, var(--issg-cyan) 0%, var(--issg-blue) 82%);
}

.btn--solid:hover,
.navbar__cta:hover,
.hero .btn--pill-light:hover {
  background: linear-gradient(100deg, #00cbe3 0%, #03457f 82%);
}

.mini-card::before,
.about-section > h2::after {
  background: linear-gradient(180deg, var(--issg-cyan), var(--issg-blue));
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1,
  .about-hero h1,
  .team-banner h1,
  .research-head h1 {
    color: transparent;
    background: linear-gradient(100deg, var(--issg-cyan) 0%, var(--issg-blue) 72%);
    -webkit-background-clip: text;
    background-clip: text;
  }
}

@media (max-width: 47.99em) {
  .about-hero,
  .team-banner {
    background: #fff;
  }
}

/* Buttons and inputs */
.btn {
  border-radius: 999px;
  font-size: 0.9rem;
  min-height: 44px;
  padding-inline: 1.25rem;
}

.btn--solid {
  background: var(--issg-blue);
}

.btn--solid:hover {
  background: #03457f;
  transform: translateY(-2px);
}

.btn--outline {
  background: #fff;
  border-color: var(--issg-line);
}

.btn--outline:hover {
  border-color: var(--issg-blue);
  color: var(--issg-blue);
  background: #fff;
}

.btn--pill-light {
  color: var(--issg-blue);
  box-shadow: none;
}

.btn--pill-ghost {
  border-width: 1px;
}

.input,
.textarea {
  background: #f4f7fa;
  border: 1px solid transparent;
  border-radius: 0.8rem;
}

.input {
  height: 3rem;
}

.input:focus,
.textarea:focus {
  border-color: var(--issg-cyan);
  box-shadow: 0 0 0 4px rgba(3, 228, 251, 0.14);
}

.form-card {
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 1.5rem;
  box-shadow: var(--shadow-soft);
}

/* Home hero */
.circuit {
  display: none;
}

.home {
  overflow: hidden;
}

.hero {
  min-height: clamp(590px, 76vh, 790px);
  background: var(--issg-ink);
}

.hero__track img {
  filter: saturate(0.9) contrast(1.04);
}

.hero__scrim {
  background:
    linear-gradient(90deg, rgba(14, 23, 36, 0.96) 0%, rgba(4, 83, 155, 0.74) 46%, rgba(4, 83, 155, 0.14) 100%),
    linear-gradient(0deg, rgba(14, 23, 36, 0.25), transparent 45%);
}

.hero__inner {
  padding-block: clamp(5.5rem, 12vw, 8rem);
}

.hero__copy {
  max-width: 48rem;
}

.hero__kicker {
  width: fit-content;
  margin-bottom: 1.35rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.17em;
}

.hero h1 {
  max-width: 46rem;
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.93;
  letter-spacing: -0.055em;
}

.hero__lead {
  max-width: 39rem;
  margin-bottom: 2rem;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.55;
}

.hero__actions {
  gap: 0.7rem;
}

.hero__dots {
  bottom: 1.5rem;
}

.hero__dots button {
  height: 4px;
  width: 28px;
  border-radius: 10px;
}

.hero__dots button.is-active {
  width: 52px;
  background: var(--issg-cyan);
}

/* Home bands */
.band--white,
.band--tint,
.band--blue {
  background: #fff;
}

.latest {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--issg-line);
}

.latest__grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.latest__item {
  min-height: 100px;
  padding: 0.75rem 1.25rem;
  border-right: 1px solid var(--issg-line);
  border-radius: 0;
}

.latest__item:last-child {
  border-right: 0;
}

.latest__thumb {
  width: 88px;
  height: 68px;
  border-radius: 0.75rem;
}

.latest__title {
  font-size: 0.9rem;
}

.stats {
  background: linear-gradient(100deg, #0e1724 0%, #04539b 100%);
}

.stats__row {
  min-height: 168px;
}

.stat {
  min-width: 220px;
  padding: 2rem;
}

.stat__value {
  font-size: clamp(2.8rem, 5vw, 4.6rem);
  letter-spacing: -0.06em;
}

.stat__label {
  color: rgba(255, 255, 255, 0.72);
}

.focus {
  padding-block: clamp(4.5rem, 8vw, 7rem);
  background: var(--issg-paper);
}

.focus__head {
  margin-bottom: 2.5rem;
}

.focus__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.focus-card {
  height: 230px;
  border-radius: 1.25rem;
  box-shadow: 0 10px 30px rgba(14, 23, 36, 0.08);
}

.focus-card::after {
  background: linear-gradient(to top, rgba(14, 23, 36, 0.92), rgba(4, 83, 155, 0.16) 72%);
}

.focus-card__body {
  padding: 1.25rem;
}

.focus-card__number {
  color: var(--issg-cyan);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
}

.focus-card__title {
  font-size: 1.12rem;
}

.focus-card__desc {
  line-height: 1.5;
}

@media (min-width: 62em) {
  .focus__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .focus-card {
    grid-column: span 3;
    height: 290px;
  }
  .focus-card:first-child,
  .focus-card:nth-child(6) {
    grid-column: span 6;
  }
}

.home-about {
  padding-block: clamp(4.5rem, 8vw, 7rem);
}

.home-about__grid {
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: center;
}

.home-about__col > p {
  color: #526579;
  line-height: 1.75;
}

.mini-card {
  position: relative;
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--issg-line);
  border-radius: 1rem;
  overflow: hidden;
}

.mini-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(var(--issg-cyan), var(--issg-blue));
}

.featured {
  padding-block: clamp(4.5rem, 8vw, 7rem);
  background: var(--issg-paper);
}

.project-card {
  max-width: none;
  border: 1px solid var(--issg-line);
  border-radius: 1.25rem;
  box-shadow: none;
}

.project-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-lift);
  border-color: transparent;
}

.project-card__media {
  height: 230px;
}

.project-card__body {
  padding: 1.5rem;
}

.recent {
  padding-block: clamp(4rem, 7vw, 6.5rem);
  background: var(--issg-ink);
  color: #fff;
}

.recent__head h2,
.recent .btn--link {
  color: #fff;
}

.recent__head p,
.recent .pub-row__authors {
  color: rgba(255, 255, 255, 0.6);
}

.pub-row {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.pub-row:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(3, 228, 251, 0.55);
}

.recent .pub-row__title,
.recent .pub-row__link {
  color: #fff;
}

.pub-row__icon {
  background: rgba(3, 228, 251, 0.12);
  color: var(--issg-cyan);
}

.home-contact,
.team-contact {
  padding-block: clamp(4.5rem, 8vw, 7rem);
  background: linear-gradient(135deg, #eaf7fb, #f7fafc 60%);
}

.home-contact__head {
  margin-bottom: 3.5rem;
}

.home-contact .form-card,
.team-contact .form-card {
  background: var(--issg-blue);
  color: #fff;
  border: 0;
}

.home-contact .form-card .input,
.home-contact .form-card .textarea,
.team-contact .form-card .input,
.team-contact .form-card .textarea {
  background: rgba(255, 255, 255, 0.94);
  color: var(--issg-ink);
}

.home-contact .form-card .btn,
.team-contact .form-card .btn {
  background: var(--issg-ink);
}

.contact-item__icon {
  background: #fff;
  color: var(--issg-blue);
  box-shadow: 0 8px 25px rgba(4, 83, 155, 0.1);
}

/* About */
.about-hero,
.team-banner {
  position: relative;
  padding-block: clamp(5rem, 9vw, 8rem);
  background:
    linear-gradient(105deg, rgba(14, 23, 36, 0.98), rgba(4, 83, 155, 0.88)),
    url("/images/brand/issg-mark-white.png") 92% center / 410px no-repeat;
}

.about-hero::before {
  background: radial-gradient(circle at 80% 50%, rgba(3, 228, 251, 0.2), transparent 38%);
}

.about-hero h1,
.team-banner h1 {
  max-width: 60rem;
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  line-height: 0.98;
}

.about-hero__tagline {
  color: rgba(255, 255, 255, 0.72);
}

.about-body {
  padding-block: clamp(4rem, 7vw, 6.5rem);
}

.about-stack {
  gap: clamp(3.5rem, 7vw, 6rem);
}

.mv-card {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-radius: 1.25rem;
  box-shadow: none;
}

.mv-card--mission {
  background: var(--issg-blue);
}

.mv-card--vision {
  background: #e5faff;
}

.about-section > h2 {
  border: 0;
  padding: 0;
  font-size: clamp(1.75rem, 3vw, 2.6rem);
}

.academic-block {
  padding: 1.7rem;
  border: 1px solid var(--issg-line);
  border-top: 0;
  border-radius: 1.15rem;
  box-shadow: none;
}

.academic-block:hover {
  border-color: rgba(4, 83, 155, 0.35);
  box-shadow: var(--shadow-soft);
}

.about-capabilities {
  background: #eaf7fb;
  border-left-color: var(--issg-cyan);
}

.about-contact-card {
  background: linear-gradient(135deg, var(--issg-blue), #063b6a);
}

/* Research */
.research-page,
.news-page {
  padding-block: clamp(2rem, 5vw, 4rem) clamp(4rem, 8vw, 7rem);
}

.research-head {
  margin-bottom: 4rem;
  padding: clamp(2rem, 5vw, 4.5rem);
  border-radius: 1.5rem;
  color: #fff;
  background: linear-gradient(115deg, var(--issg-ink), var(--issg-blue));
  overflow: hidden;
}

.research-head h1,
.research-head p {
  color: #fff;
}

.research-head p {
  max-width: 46rem;
  opacity: 0.72;
}

.research-bar h2,
.research-subhead,
.pub-year > h2 {
  color: var(--issg-ink);
}

.project-list {
  gap: 0.9rem;
}

.project-row {
  min-height: 125px;
  border-color: var(--issg-line);
  border-radius: 1rem;
}

.project-row:hover {
  border-color: rgba(4, 83, 155, 0.3);
  box-shadow: var(--shadow-soft);
}

.project-row__body {
  padding: 1.5rem;
}

.project-row__media {
  width: 190px;
}

.pub-year > h2 {
  border-color: var(--issg-cyan);
}

.pub-item {
  padding: 1.25rem;
  background: #fff;
  border: 1px solid var(--issg-line);
  border-radius: 1rem;
}

.pub-item__icon {
  background: #e5faff;
  color: var(--issg-blue);
}

.pub-item__rule {
  display: none;
}

/* Team */
.team-banner__grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
}

.team-banner__lead {
  padding-left: 2rem;
  border-left: 2px solid var(--issg-cyan);
}

.team-roster {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.team-tabs {
  justify-content: flex-start;
  border-bottom-color: var(--issg-line);
}

.team-tab {
  background: transparent;
  border-radius: 999px;
  border: 1px solid var(--issg-line);
  margin-bottom: 0.75rem;
  padding: 0.65rem 1rem;
}

.team-tab.is-active {
  margin-bottom: 0.75rem;
  padding-bottom: 0.65rem;
  color: #fff;
  background: var(--issg-blue);
  border-color: var(--issg-blue);
}

.team-tab.is-active .team-tab__count {
  background: rgba(255, 255, 255, 0.17);
  color: #fff;
}

.person-card {
  min-height: 160px;
  border-color: var(--issg-line);
  border-radius: 1rem;
}

.person-card__body {
  padding: 1.25rem;
}

.person-card__name {
  font-size: 1rem;
}

.person-card__photo {
  width: 132px;
}

/* News and events */
.news-grid {
  gap: 1.25rem;
}

.news-card,
.event-item,
.calendar {
  border: 1px solid var(--issg-line);
  border-radius: 1.15rem;
  box-shadow: none;
}

.news-card:hover,
.event-item:hover {
  box-shadow: var(--shadow-soft);
}

.news-card__media {
  height: 230px;
}

.news-card__date,
.chip.is-active,
.calendar__day.has-events {
  background: var(--issg-blue);
  color: #fff;
}

.event-item__date {
  background: #e5faff;
}

.event-item__month,
.event-item__day {
  color: var(--issg-blue);
}

/* Project details */
.project-hero {
  height: clamp(380px, 58vh, 650px);
}

.project-hero::after {
  height: 75%;
  background: linear-gradient(to top, rgba(14, 23, 36, 0.95), transparent);
}

.project-hero__caption h1 {
  max-width: 64rem;
  font-size: clamp(2.4rem, 5vw, 5rem);
  line-height: 0.98;
}

.project-body {
  padding-block: clamp(3rem, 6vw, 5.5rem);
}

.detail-section h2 {
  color: var(--issg-blue);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}

.detail-section p {
  text-align: left;
  color: #42556a;
}

/* Footer */
.footer {
  background: var(--issg-ink);
}

.footer__grid {
  gap: 2.5rem;
  padding-block: 3.5rem 2.5rem;
}

.footer__logo {
  width: 210px;
  height: auto;
  margin-bottom: 0.85rem;
}

.footer__blurb {
  max-width: 19rem;
  line-height: 1.6;
}

.footer__col {
  gap: 0.6rem;
}

.footer__heading {
  color: var(--issg-cyan);
  letter-spacing: 0.14em;
}

.footer__divider {
  font-size: 0;
}

.footer__divider span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--issg-cyan);
}

.footer__legal {
  padding-block: 1rem 1.5rem;
}

/* Responsive */
@media (max-width: 61.99em) {
  .latest__grid {
    grid-template-columns: 1fr;
  }
  .latest__item {
    border-right: 0;
    border-bottom: 1px solid var(--issg-line);
  }
  .latest__item:last-child {
    border-bottom: 0;
  }
  .team-banner__grid {
    grid-template-columns: 1fr;
  }
  .team-banner__lead {
    padding-left: 0;
    border-left: 0;
    max-width: 42rem;
  }
}

@media (max-width: 47.99em) {
  .hero {
    min-height: 620px;
  }
  .hero__scrim {
    background: linear-gradient(90deg, rgba(14, 23, 36, 0.94), rgba(4, 83, 155, 0.55));
  }
  .hero h1 {
    font-size: clamp(2.65rem, 13vw, 4.2rem);
  }
  .focus-card {
    height: 210px;
  }
  .focus-card__desc {
    display: none;
  }
  .stats__row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
  .stat {
    min-width: 0;
    padding: 1.5rem 0.5rem;
  }
  .stat__value {
    font-size: 2.35rem;
  }
  .stat__label {
    font-size: 0.58rem;
  }
  .featured__head,
  .recent__head {
    align-items: flex-start;
  }
  .project-row__media {
    width: 105px;
  }
  .person-card__photo {
    width: 100px;
  }
  .about-hero,
  .team-banner {
    background: linear-gradient(115deg, var(--issg-ink), var(--issg-blue));
  }
}

@media (max-width: 29.99em) {
  .focus__grid {
    grid-template-columns: 1fr;
  }
  .focus-card {
    height: 230px;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .stats__row {
    grid-template-columns: 1fr;
  }
  .stat {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Marconi-inspired restraint pass
   Neutral surfaces carry the site; iSSG blue is reserved for emphasis. */

.hero {
  min-height: clamp(600px, 76vh, 760px);
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background:
    radial-gradient(circle at 15% 15%, rgba(3, 228, 251, 0.08), transparent 26%),
    #f4f7f9;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(30deg, transparent 49.7%, rgba(4, 83, 155, 0.16) 50%, transparent 50.3%),
    linear-gradient(150deg, transparent 49.7%, rgba(4, 83, 155, 0.12) 50%, transparent 50.3%);
  background-size: 180px 150px;
}

.hero__slides {
  inset: clamp(2.5rem, 6vw, 5rem) clamp(1.5rem, 5vw, 4rem) clamp(2.5rem, 6vw, 5rem) 55%;
  border-radius: 1.5rem;
  box-shadow: 0 24px 60px rgba(14, 23, 36, 0.14);
}

.hero__track img {
  filter: saturate(0.82) contrast(1.02);
}

.hero__scrim {
  display: none;
}

.hero__inner {
  display: flex;
  align-items: center;
  min-height: 100%;
  padding-block: 3rem;
}

.hero__copy {
  width: 50%;
  max-width: 40rem;
  padding: clamp(2rem, 5vw, 4.5rem);
  border: 1px solid rgba(14, 23, 36, 0.07);
  border-radius: 1.5rem 0 0 1.5rem;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 18px 48px rgba(14, 23, 36, 0.08);
}

.hero__kicker {
  color: var(--issg-blue);
  background: #e7faff;
  border-color: transparent;
}

.hero h1 {
  color: var(--issg-blue);
  font-size: clamp(3rem, 5.5vw, 5.35rem);
}

.hero__lead {
  color: #4f6072;
}

.hero .btn--pill-light {
  color: #fff;
  background: var(--issg-blue);
}

.hero .btn--pill-light:hover {
  color: #fff;
  background: #03457f;
}

.hero .btn--pill-ghost {
  color: var(--issg-ink);
  background: #fff;
  border-color: var(--issg-line);
}

.hero .btn--pill-ghost:hover {
  color: var(--issg-blue);
  border-color: var(--issg-blue);
  background: #fff;
}

.hero__dots {
  left: auto;
  right: clamp(2.5rem, 6vw, 5rem);
  transform: none;
}

.hero__dots button {
  background: rgba(255, 255, 255, 0.62);
}

.hero__dots button.is-active {
  background: var(--issg-cyan);
}

.stats {
  background: #edf2f6;
  border-block: 1px solid var(--issg-line);
}

.stat__value {
  color: var(--issg-blue);
}

.stat__label {
  color: #5a6b7f;
}

.stat:hover {
  background: #fff;
}

.stats__divider {
  background: #ced9e2;
}

.focus,
.featured,
.home-contact,
.team-contact {
  background: #f4f7f9;
}

.mini-card::before,
.about-section > h2::after {
  background: var(--issg-blue);
}

.recent {
  color: var(--issg-ink);
  background: #fff;
  border-block: 1px solid var(--issg-line);
}

.recent__head h2,
.recent .btn--link,
.recent .pub-row__title,
.recent .pub-row__link {
  color: var(--issg-ink);
}

.recent__head p,
.recent .pub-row__authors {
  color: #657487;
}

.recent .pub-row {
  background: #f7f9fb;
  border-color: var(--issg-line);
}

.recent .pub-row:hover {
  background: #fff;
  border-color: rgba(4, 83, 155, 0.3);
}

.recent .pub-row__icon {
  background: #e7faff;
  color: var(--issg-blue);
}

.home-contact .form-card,
.team-contact .form-card {
  color: var(--issg-ink);
  background: #fff;
  border: 1px solid var(--issg-line);
}

.home-contact .form-card .input,
.home-contact .form-card .textarea,
.team-contact .form-card .input,
.team-contact .form-card .textarea {
  background: #f4f7f9;
}

.home-contact .form-card .btn,
.team-contact .form-card .btn {
  background: var(--issg-blue);
}

.about-hero,
.team-banner {
  color: var(--issg-ink);
  background:
    url("/images/brand/issg-mark-primary.png") 92% center / 360px no-repeat,
    #f0f4f7;
  border-bottom: 1px solid var(--issg-line);
}

.about-hero::before {
  background: radial-gradient(circle at 84% 45%, rgba(3, 228, 251, 0.1), transparent 32%);
}

.about-hero h1,
.team-banner h1 {
  color: var(--issg-blue);
}

.about-hero__kicker {
  color: var(--issg-blue);
}

.about-hero__tagline,
.team-banner__lead {
  color: #536477;
}

.team-banner__lead {
  border-left-color: var(--issg-blue);
}

.mv-card--mission {
  background: var(--issg-blue);
}

.research-head {
  color: var(--issg-ink);
  background:
    radial-gradient(circle at 88% 30%, rgba(3, 228, 251, 0.13), transparent 26%),
    #fff;
  border: 1px solid var(--issg-line);
  box-shadow: 0 16px 45px rgba(14, 23, 36, 0.06);
}

.research-head h1 {
  color: var(--issg-blue);
}

.research-head p {
  color: #596a7e;
  opacity: 1;
}

.about-contact-card {
  background: var(--issg-ink);
}

@media (max-width: 61.99em) {
  .hero {
    min-height: 820px;
    align-items: flex-start;
  }

  .hero__inner {
    align-items: flex-start;
  }

  .hero__copy {
    width: 100%;
    max-width: none;
    padding: 2rem;
    border-radius: 1.25rem;
  }

  .hero__slides {
    inset: 51% 1.25rem 1.25rem;
  }

  .hero__dots {
    right: 2rem;
  }
}

@media (max-width: 47.99em) {
  .about-hero,
  .team-banner {
    background: #f0f4f7;
  }

  .hero {
    min-height: 860px;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 12vw, 4rem);
  }

  .hero__slides {
    inset: 55% 1rem 1rem;
  }
}

/* Shared page introductions: a calm, centered title area rather than cards or
   competing banners. */
.page-intro {
  position: relative;
  margin: 0;
  padding: clamp(2.5rem, 5vw, 4rem) 1.5rem;
  overflow: hidden;
  color: var(--issg-ink);
  text-align: center;
  background: #f4f7f9;
  border: 0;
  border-bottom: 1px solid var(--issg-line);
  border-radius: 0;
  box-shadow: none;
}

.page-intro::before {
  display: none;
}

.page-intro .container,
.page-intro__stack,
.page-intro .team-banner__grid {
  display: block;
  max-width: 48rem;
  margin-inline: auto;
}

.page-intro h1,
.page-intro .h-2xl {
  margin: 0;
  color: var(--issg-blue);
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  background: none;
  -webkit-text-fill-color: currentColor;
}

.page-intro p,
.page-intro .about-hero__tagline,
.page-intro .team-banner__lead {
  max-width: 42rem;
  margin: 1.25rem auto 0;
  padding: 0;
  color: #536477;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-weight: 400;
  line-height: 1.6;
  border: 0;
}

.page-intro .about-hero__kicker {
  margin: 0 auto 1rem;
  color: #536477;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.page-intro--news {
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.research-page > .container > .page-intro {
  width: calc(100% + 3rem);
  max-width: none;
  margin: clamp(0rem, 0vw, 0rem) -1.5rem clamp(2.5rem, 5vw, 4.5rem);
}

@media (max-width: 47.99em) {
  .page-intro {
    padding-block: 2.5rem;
  }

  .research-page > .container > .page-intro {
    width: calc(100% + 2rem);
    margin-inline: -1rem;
  }
}

/* One calm surface across the public site. Content cards remain white so
   fields, results and linked items are still easy to scan. */
:root {
  --issg-paper: #f4f7f9;
  --issg-background: #f4f7f9;
  --issg-background-gray: #edf2f6;
}

body,
.home,
.band--white,
.band--tint,
.band--blue,
.latest,
.stats,
.focus,
.home-about,
.featured,
.recent,
.home-contact,
.team-contact,
.about-page,
.about-body,
.team-roster,
.research-page,
.news-page,
.project-body {
  background: #f4f7f9;
}

.research-page,
.news-page {
  padding-top: 0;
}

/* Homepage sections should flow together without horizontal divider rules. */
.home .latest,
.home .stats,
.home .focus,
.home .home-about,
.home .featured,
.home .recent,
.home .home-contact {
  border-top: 0;
  border-bottom: 0;
  border-block: 0;
}

/* Homepage hero: let the research photography lead. Copy sits in its own band
   so it never obscures the subject of the image. */
.hero {
  --hero-image-height: clamp(390px, 56vw, 620px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 0;
  padding: 0;
  background: linear-gradient(105deg, var(--issg-ink), var(--issg-blue));
}

.hero__media {
  position: relative;
  order: 1;
  width: 100%;
  height: var(--hero-image-height);
  overflow: hidden;
  background: #eef2f5 url("/images/hero-loading.webp") center center / cover no-repeat;
}

.hero::before {
  display: none;
}

.hero__slides {
  position: absolute;
  inset: 0;
  width: 100%;
  max-width: none;
  height: 100%;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.hero__track img {
  filter: brightness(0.8) saturate(0.82) contrast(1.03);
}

.hero__scrim {
  display: none;
}

.hero__inner {
  order: 2;
  display: block;
  min-height: 0;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.hero__copy {
  width: 100%;
  max-width: 68rem;
  padding: 0;
  color: #fff;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.hero__kicker,
.hero__lead {
  display: block;
}

.hero__actions .btn:nth-child(2) {
  display: inline-flex;
}

.hero__kicker {
  margin-bottom: 1rem;
  color: var(--issg-cyan);
  background: transparent;
}

.hero h1 {
  max-width: 44rem;
  margin-bottom: 1.25rem;
  color: #fff;
  font-size: clamp(2.5rem, 5vw, 4.65rem);
  line-height: 1.03;
  letter-spacing: -0.025em;
  word-spacing: 0.03em;
  text-shadow: none;
  -webkit-text-fill-color: #fff;
}

.hero__lead {
  max-width: 40rem;
  margin-bottom: 1.75rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.65;
  letter-spacing: 0;
  word-spacing: normal;
  text-shadow: none;
}

.hero .btn--pill-light {
  color: var(--issg-ink);
  background: #fff;
}

.hero .btn--pill-ghost {
  color: #fff;
  background: rgba(4, 83, 155, 0.34);
  border-color: rgba(255, 255, 255, 0.78);
}

.hero__dots {
  right: auto;
  top: auto;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
}

.hero__dots button {
  background: rgba(255, 255, 255, 0.48);
}

.hero__dots button.is-active {
  background: #fff;
}

@media (max-width: 47.99em) {
  .hero {
    --hero-image-height: clamp(280px, 76vw, 390px);
  }

  .hero__inner {
    padding-block: 2.25rem 2.75rem;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 11vw, 3.5rem);
  }

  .hero__actions {
    justify-content: flex-start;
  }
}

/* Desktop hero: make the research photography the stage. The layered blue
   light, technical grid and deep scrim add depth while keeping copy legible. */
@media (min-width: 62em) {
  .hero {
    --hero-image-height: clamp(480px, 52vw, 700px);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: 0;
    padding: 0;
    background: linear-gradient(105deg, var(--issg-ink), var(--issg-blue));
  }

  .hero::before {
    display: none;
  }

  .hero__slides {
    position: absolute;
    z-index: 0;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .hero__track img {
    filter: brightness(0.82) saturate(0.92) contrast(1.04);
  }

  .hero__scrim {
    display: none;
  }

  .hero__inner {
    position: relative;
    z-index: 1;
    order: 2;
    display: block;
    min-height: 0;
    padding-block: clamp(3.5rem, 6vw, 5rem);
  }

  .hero__copy {
    width: 100%;
    max-width: 68rem;
    margin: 0;
    padding: 0;
    color: #fff;
    text-align: left;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .hero h1 {
    max-width: 50rem;
    margin: 0 0 1.5rem;
    color: #fff;
    font-size: clamp(3.5rem, 5.5vw, 5.4rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
    text-shadow: none;
    -webkit-text-fill-color: #fff;
  }

  .hero__lead {
    max-width: 39rem;
    margin: 0 0 2rem;
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  }

  .hero__actions {
    justify-content: flex-start;
  }

  .hero__dots {
    z-index: 2;
    top: auto;
    right: auto;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
  }

  .hero__dots button.is-active {
    background: var(--issg-cyan);
  }
}

/* Still loading states and no decorative vertical separators. */
.latest__item {
  border-right: 0;
}

.stats__divider,
.event-item__divider {
  display: none !important;
}