/* CSIT solutions — applied research portfolio. */

.solutions-page {
  background: var(--off-white);
  color: var(--deep-green);
}

.solutions-page main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  display: block;
  overflow: clip;
}

/* Hero: preserve the original off-white / deep-green palette. */
.solution-hero {
  width: 100%;
  height: min(700px, calc(100svh - 104px));
  min-height: 560px;
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  background: var(--off-white);
  color: var(--deep-green);
}

.solution-hero-marker {
  position: absolute;
  right: -0.08em;
  bottom: -0.22em;
  color: rgba(31, 58, 61, 0.045);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: clamp(13rem, 29vw, 34rem);
  font-weight: 500;
  letter-spacing: -0.12em;
  line-height: 0.72;
  pointer-events: none;
}

.solution-hero-ticker {
  width: 100%;
  margin: 0;
  padding: 18px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  -webkit-mask-image: none;
  mask-image: none;
  overflow: hidden;
  z-index: 2;
}

.solution-hero-ticker .ticker-track {
  min-width: max-content;
  animation: solution-ticker-scroll 26s linear infinite;
}

.solution-hero-ticker.reverse .ticker-track {
  animation-direction: reverse;
}

.solution-hero-ticker .ticker-text {
  color: var(--deep-green);
  font-size: clamp(0.66rem, 0.72vw, 0.78rem);
  font-weight: 500;
  letter-spacing: 0.18em;
}

@keyframes solution-ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.solution-hero-inner {
  width: 100%;
  min-height: 0;
  padding: clamp(54px, 6vw, 96px) max(4.5vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(380px, 0.82fr);
  align-items: center;
  gap: clamp(70px, 9vw, 180px);
  z-index: 1;
}

.solution-kicker,
.solution-browser-kicker {
  margin: 0 0 24px;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.solution-hero h1 {
  margin: 0;
  color: var(--deep-green);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(4.5rem, 9.5vw, 10rem);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.8;
}

.solution-hero-copy {
  max-width: 690px;
  justify-self: end;
}

.solution-hero-copy > p {
  margin: 0;
  color: rgba(31, 58, 61, 0.78);
  font-size: clamp(1.12rem, 1.52vw, 1.55rem);
  line-height: 1.5;
}

.solution-hero-facts {
  margin: clamp(34px, 4vw, 56px) 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(31, 58, 61, 0.22);
}

.solution-hero-facts div {
  padding: 18px 18px 0 0;
}

.solution-hero-facts div + div {
  padding-left: 18px;
  border-left: 1px solid rgba(31, 58, 61, 0.22);
}

.solution-hero-facts dt {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.59rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.solution-hero-facts dd {
  margin: 0;
  color: var(--deep-green);
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  font-weight: 500;
}

/* Portfolio browser. */
.solution-browser {
  width: 100%;
  margin: 0;
  padding: clamp(92px, 8vw, 142px) max(4.5vw, 64px) clamp(110px, 10vw, 176px);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: #edf1f0;
  color: var(--deep-green);
}

.solution-browser-heading {
  margin-bottom: clamp(58px, 6vw, 94px);
  padding-bottom: 32px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.6fr);
  align-items: end;
  gap: clamp(50px, 7vw, 130px);
  border-bottom: 1px solid rgba(31, 58, 61, 0.25);
}

.solution-browser-kicker {
  margin-bottom: 22px;
}

.solution-browser-heading h2 {
  max-width: 980px;
  margin: 0;
  color: var(--deep-green);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(3rem, 5.8vw, 6.6rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.92;
}

.solution-browser-heading > p {
  max-width: 540px;
  margin: 0 0 8px;
  color: rgba(31, 58, 61, 0.68);
  font-size: clamp(1rem, 1.05vw, 1.15rem);
  line-height: 1.65;
}

.solution-tools {
  width: 100%;
  margin-bottom: 48px;
  display: grid;
  grid-template-columns: minmax(300px, 1.2fr) minmax(220px, 0.58fr) minmax(220px, 0.58fr) auto;
  align-items: stretch;
  border-top: 1px solid rgba(31, 58, 61, 0.28);
  border-bottom: 1px solid rgba(31, 58, 61, 0.28);
  background: #dce5e2;
}

.solution-search,
.solution-filter {
  min-width: 0;
  min-height: 112px;
  margin: 0;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid rgba(31, 58, 61, 0.22);
}

.solution-search > span:first-child,
.solution-filter > span {
  margin-bottom: 12px;
  color: rgba(31, 58, 61, 0.62);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.solution-search-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(31, 58, 61, 0.44);
}

.solution-search input,
.solution-filter select {
  width: 100%;
  min-width: 0;
  padding: 8px 0 11px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--deep-green);
  font: 500 0.93rem/1.2 "Space Grotesk", system-ui, sans-serif;
}

.solution-search input::placeholder {
  color: rgba(31, 58, 61, 0.48);
}

.solution-search-field:focus-within,
.solution-filter select:focus {
  border-color: var(--deep-green);
  box-shadow: 0 2px 0 var(--deep-green);
}

.solution-search-field > b {
  font-size: 1.25rem;
  font-weight: 400;
}

.solution-filter select {
  padding-right: 22px;
  border-bottom: 1px solid rgba(31, 58, 61, 0.44);
  cursor: pointer;
}

.solution-clear {
  min-width: 132px;
  min-height: 112px;
  padding: 20px;
  border: 0;
  border-radius: 0;
  background: var(--deep-green);
  color: var(--off-white);
  font: 600 0.65rem/1.2 "IBM Plex Sans", sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 170ms ease, color 170ms ease;
}

.solution-clear:hover,
.solution-clear:focus-visible {
  background: var(--accent);
  color: var(--deep-green);
}

.solution-clear[hidden] {
  display: none;
}

.solution-results-head {
  scroll-margin-top: 150px;
  min-height: 66px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(31, 58, 61, 0.26);
  border-bottom: 1px solid rgba(31, 58, 61, 0.26);
  color: rgba(31, 58, 61, 0.62);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.solution-results-head p {
  margin: 0;
}

.solutions-page .solutions-list {
  counter-reset: solution;
  display: block;
}

.solutions-page .solution-item {
  counter-increment: solution;
  display: block;
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(31, 58, 61, 0.22);
  background: transparent;
}

.solutions-page .solution-item.is-hidden {
  display: none;
}

.solutions-page .solution-head {
  min-height: 190px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 64px minmax(220px, 0.34fr) minmax(360px, 1fr) 170px;
  grid-template-rows: auto 1fr;
  align-items: start;
  column-gap: clamp(24px, 3vw, 52px);
  background: transparent;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.solutions-page .solution-item:not(.is-open) .solution-head:hover,
.solutions-page .solution-item:not(.is-open) .solution-head:focus-within {
  background: #dce5e2;
}

.solutions-page .solution-head:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.solutions-page .solution-number {
  grid-column: 1;
  grid-row: 1 / -1;
  padding-left: 14px;
  color: rgba(31, 58, 61, 0.48);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.solutions-page .solution-type {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.solutions-page .solution-head h2 {
  grid-column: 2;
  grid-row: 2;
  align-self: start;
  margin: 16px 0 0;
  color: var(--deep-green);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.45rem, 2.15vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.solutions-page .solution-desc {
  grid-column: 3;
  grid-row: 1 / -1;
  max-width: 780px;
  margin: 0;
  color: rgba(31, 58, 61, 0.7);
  font-size: clamp(0.98rem, 1.05vw, 1.12rem);
  line-height: 1.65;
}

.solutions-page .solution-disclosure {
  grid-column: 4;
  grid-row: 1 / -1;
  align-self: stretch;
  min-height: 80px;
  padding: 20px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid rgba(31, 58, 61, 0.3);
  border-radius: 0;
  background: transparent;
  color: var(--deep-green);
  font: 600 0.64rem/1.2 "IBM Plex Sans", sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
  transition: background-color 170ms ease, color 170ms ease;
}

.solutions-page .solution-disclosure b {
  font: 400 1.25rem/1 "Space Grotesk", sans-serif;
}

.solutions-page .solution-head:hover .solution-disclosure,
.solutions-page .solution-head:focus-visible .solution-disclosure,
.solutions-page .solution-item.is-open .solution-disclosure {
  background: var(--deep-green);
  color: var(--off-white);
}

.solutions-page .solution-item.is-open .solution-head {
  background: var(--accent);
}

.solutions-page .solution-item.is-open .solution-type {
  color: var(--deep-green);
}

.solutions-page .solution-meta-block {
  margin: 0;
  padding: clamp(42px, 5vw, 76px);
  display: grid;
  gap: clamp(38px, 5vw, 72px);
  border: 0;
  border-radius: 0;
  background: var(--deep-green);
  color: var(--off-white);
}

.solutions-page .solution-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid rgba(245, 247, 247, 0.2);
  border-bottom: 1px solid rgba(245, 247, 247, 0.2);
}

.solutions-page .solution-meta {
  min-width: 0;
  padding: 26px clamp(18px, 2.5vw, 38px) 28px 0;
  display: block;
}

.solutions-page .solution-meta + .solution-meta {
  padding-left: clamp(18px, 2.5vw, 38px);
  border-left: 1px solid rgba(245, 247, 247, 0.2);
}

.solutions-page .solution-meta h3,
.solutions-page .solution-demo h3 {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.solutions-page .solution-meta h3:not(:first-child) {
  margin-top: 26px;
}

.solutions-page .solution-meta p,
.solutions-page .solution-meta a {
  margin: 0;
  color: rgba(245, 247, 247, 0.82);
  font-size: 0.95rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.solutions-page .solution-meta a {
  text-decoration-color: rgba(104, 211, 163, 0.6);
  text-underline-offset: 4px;
}

.solutions-page .solution-meta a:hover,
.solutions-page .solution-meta a:focus-visible {
  color: var(--accent);
}

.solutions-page .solution-publications {
  margin: 0;
  padding: 0;
  list-style: none;
}

.solutions-page .solution-publications li {
  position: relative;
  padding: 0 0 16px 18px;
  color: rgba(245, 247, 247, 0.82);
  font-size: 0.95rem;
  line-height: 1.55;
}

.solutions-page .solution-publications li::before {
  content: "";
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.solutions-page .solution-demo {
  max-width: none;
  max-height: none;
  margin: 0;
  display: grid;
  gap: 18px;
  overflow: visible;
  opacity: 1;
}

.solutions-page .solution-media-frame,
.solutions-page .solution-demo-embed,
.solutions-page .solution-demo-featured,
.solutions-page .solution-demo-small {
  position: relative;
  width: 100%;
  max-width: 1120px;
  height: auto;
  padding: 0 !important;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(245, 247, 247, 0.22);
  border-radius: 0;
  background: #0f1f22;
}

.solutions-page .solution-demo-pair {
  width: 100%;
  max-width: 1120px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.solutions-page .solution-media-frame iframe,
.solutions-page .solution-media-frame video,
.solutions-page .solution-media-frame img,
.solutions-page .solution-demo-embed iframe,
.solutions-page .solution-demo-featured iframe,
.solutions-page .solution-demo-featured img,
.solutions-page .solution-demo-small iframe {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  max-width: none !important;
  height: 100% !important;
  border: 0 !important;
  border-radius: 0;
  object-fit: cover;
}

.solutions-page .solution-preview-image img {
  object-fit: contain;
}

.solutions-page .solution-demo-toggle {
  display: none;
}

.solution-empty {
  min-height: 340px;
  padding: 72px 24px;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
  border-bottom: 1px solid rgba(31, 58, 61, 0.22);
}

.solution-empty span {
  margin-bottom: 22px;
  color: var(--accent);
  font: 600 0.68rem/1 "IBM Plex Sans", sans-serif;
  letter-spacing: 0.14em;
}

.solution-empty h3 {
  margin: 0;
  color: var(--deep-green);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.solution-empty p {
  margin: 14px 0 0;
  color: rgba(31, 58, 61, 0.66);
}

.solution-pagination {
  min-height: 104px;
  display: grid;
  grid-template-columns: minmax(150px, 1fr) auto minmax(150px, 1fr);
  align-items: stretch;
  border-bottom: 1px solid rgba(31, 58, 61, 0.24);
  background: #dce5e2;
}

.solution-pagination[hidden] {
  display: none;
}

.solution-pagination button {
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--deep-green);
  font: 600 0.68rem/1.2 "IBM Plex Sans", sans-serif;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 170ms ease, color 170ms ease;
}

.solution-pagination button:last-child {
  justify-content: flex-end;
}

.solution-pagination button:hover:not(:disabled),
.solution-pagination button:focus-visible:not(:disabled) {
  background: var(--deep-green);
  color: var(--off-white);
}

.solution-pagination button:disabled {
  opacity: 0.34;
  cursor: default;
}

.solution-pagination button b {
  font-size: 1rem;
  font-weight: 400;
}

.solution-pagination > span {
  min-width: 110px;
  display: grid;
  place-items: center;
  border-right: 1px solid rgba(31, 58, 61, 0.2);
  border-left: 1px solid rgba(31, 58, 61, 0.2);
  color: rgba(31, 58, 61, 0.66);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.solutions-page main + .site-footer.csit-footer {
  margin-top: 0;
  border-top: 0;
}

.solutions-page :is(a, button, input, select):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

@media (max-width: 1200px) {
  .solution-tools {
    grid-template-columns: minmax(280px, 1fr) minmax(210px, 0.6fr) minmax(210px, 0.6fr);
  }

  .solution-clear {
    min-height: 58px;
    grid-column: 1 / -1;
  }

  .solutions-page .solution-head {
    grid-template-columns: 52px minmax(220px, 0.45fr) minmax(320px, 1fr) 145px;
    column-gap: 24px;
  }
}

@media (max-width: 900px) {
  .solution-hero {
    height: auto;
    min-height: 640px;
  }

  .solution-hero-inner {
    padding: 64px 6vw;
    grid-template-columns: 1fr;
    align-content: center;
    gap: 52px;
  }

  .solution-hero-copy {
    max-width: 720px;
    justify-self: start;
  }

  .solution-browser {
    padding-inline: 6vw;
  }

  .solution-browser-heading {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 28px;
  }

  .solution-tools {
    grid-template-columns: 1fr 1fr;
  }

  .solution-search {
    grid-column: 1 / -1;
    border-right: 0;
    border-bottom: 1px solid rgba(31, 58, 61, 0.22);
  }

  .solutions-page .solution-head {
    grid-template-columns: 48px minmax(0, 1fr) 132px;
    grid-template-rows: auto auto auto;
    min-height: 0;
  }

  .solutions-page .solution-number {
    grid-column: 1;
  }

  .solutions-page .solution-type,
  .solutions-page .solution-head h2 {
    grid-column: 2;
  }

  .solutions-page .solution-desc {
    grid-column: 2;
    grid-row: 3;
    margin-top: 22px;
  }

  .solutions-page .solution-disclosure {
    grid-column: 3;
    grid-row: 1 / -1;
  }
}

@media (max-width: 680px) {
  .solution-hero {
    min-height: min(720px, calc(100svh - 82px));
  }

  .solution-hero-marker {
    right: -0.16em;
    font-size: 13rem;
  }

  .solution-hero-ticker {
    padding: 14px 0;
  }

  .solution-hero-inner {
    padding: 46px 20px;
    gap: 36px;
  }

  .solution-kicker {
    margin-bottom: 18px;
    font-size: 0.61rem;
  }

  .solution-hero h1 {
    font-size: clamp(3.2rem, 16.5vw, 4.4rem);
    line-height: 0.86;
  }

  .solution-hero-copy > p {
    font-size: 1rem;
  }

  .solution-hero-facts {
    margin-top: 28px;
  }

  .solution-hero-facts div {
    padding-right: 9px;
  }

  .solution-hero-facts div + div {
    padding-left: 9px;
  }

  .solution-hero-facts dt {
    font-size: 0.49rem;
    letter-spacing: 0.07em;
  }

  .solution-browser {
    padding: 78px 20px 96px;
  }

  .solution-browser-heading {
    margin-bottom: 46px;
    padding-bottom: 24px;
  }

  .solution-browser-heading h2 {
    font-size: clamp(2.8rem, 15vw, 4.5rem);
  }

  .solution-tools {
    margin-bottom: 34px;
    grid-template-columns: 1fr;
  }

  .solution-search,
  .solution-filter {
    min-height: 0;
    padding: 20px;
    grid-column: 1;
    border-right: 0;
    border-bottom: 1px solid rgba(31, 58, 61, 0.22);
  }

  .solution-clear {
    min-height: 54px;
    grid-column: 1;
  }

  .solution-results-head {
    padding-inline: 12px;
  }

  .solution-results-head > p:last-child {
    display: none;
  }

  .solutions-page .solution-head {
    padding: 24px 0 0;
    grid-template-columns: 42px minmax(0, 1fr);
    grid-template-rows: auto auto auto auto;
    column-gap: 12px;
  }

  .solutions-page .solution-number {
    padding-left: 8px;
  }

  .solutions-page .solution-type,
  .solutions-page .solution-head h2,
  .solutions-page .solution-desc {
    grid-column: 2;
  }

  .solutions-page .solution-head h2 {
    margin-top: 12px;
    font-size: 1.55rem;
  }

  .solutions-page .solution-desc {
    margin: 18px 12px 24px 0;
  }

  .solutions-page .solution-disclosure {
    min-height: 58px;
    padding: 14px 12px;
    grid-column: 1 / -1;
    grid-row: 4;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
  }

  .solutions-page .solution-meta-block {
    padding: 38px 20px 46px;
  }

  .solutions-page .solution-meta-grid {
    grid-template-columns: 1fr;
  }

  .solutions-page .solution-meta,
  .solutions-page .solution-meta + .solution-meta {
    padding: 22px 0;
    border-left: 0;
  }

  .solutions-page .solution-meta + .solution-meta {
    border-top: 1px solid rgba(245, 247, 247, 0.2);
  }

  .solutions-page .solution-demo-pair {
    grid-template-columns: 1fr;
  }

  .solution-pagination {
    min-height: 80px;
    grid-template-columns: 1fr auto 1fr;
  }

  .solution-pagination button {
    padding: 0 14px;
  }

  .solution-pagination button span {
    display: none;
  }

  .solution-pagination > span {
    min-width: 82px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .solution-hero-ticker .ticker-track {
    animation-play-state: paused;
  }

  .solutions-page .solution-head,
  .solutions-page .solution-disclosure {
    transition: none;
  }
}