:root {
  --ivory: #f5f0e8;
  --taupe: #d7ccc0;
  --taupe-deep: #c4b29f;
  --text: #575757;
  --text-strong: #4e4e4e;
  --text-soft: rgba(82, 82, 82, 0.96);
  --line: rgba(100, 100, 100, 0.16);
  --glass: rgba(255, 255, 255, 0.16);
  --glass-strong: rgba(255, 255, 255, 0.24);
  --shadow: 0 30px 80px rgba(95, 77, 58, 0.14);
  --radius-xl: 42px;
  --radius-lg: 28px;
  --radius-md: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.85), transparent 28%),
    linear-gradient(180deg, #f8f4ed 0%, var(--ivory) 100%);
  color: var(--text);
  font-family: "Manrope", "Avenir Next", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.page-shell {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px 10px;
  backdrop-filter: blur(12px);
}

.topbar__mark,
.topbar__nav a,
.topbar__trigger {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.topbar__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(100, 100, 100, 0.15);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar__item {
  position: relative;
  display: flex;
  align-items: center;
}

.topbar__item > a,
.topbar__trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.topbar__trigger {
  color: inherit;
  line-height: 1;
}

.topbar__item--menu > .topbar__trigger::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1px solid rgba(100, 100, 100, 0.5);
  border-bottom: 1px solid rgba(100, 100, 100, 0.5);
  transform: translateY(-1px) rotate(45deg);
}

.topbar__submenu {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 220px;
  padding: 12px;
  display: grid;
  gap: 6px;
  border-radius: 18px;
  background: rgba(250, 246, 240, 0.88);
  border: 1px solid rgba(100, 100, 100, 0.12);
  box-shadow: 0 18px 40px rgba(95, 77, 58, 0.12);
  backdrop-filter: blur(14px);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.topbar__submenu::before,
.slide-nav__menu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 100%;
  height: 14px;
}

.topbar__submenu a {
  padding: 8px 10px;
  border-radius: 12px;
  letter-spacing: 0.04em;
  text-transform: none;
  font-size: 0.84rem;
  color: var(--text-soft);
}

.topbar__submenu a:hover,
.topbar__submenu a:focus-visible {
  background: rgba(255, 255, 255, 0.52);
  outline: none;
}

.topbar__item--menu:hover .topbar__submenu,
.topbar__item--menu:focus-within .topbar__submenu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.panel {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 26px 0;
}

.panel--short {
  min-height: 72svh;
}

.panel__surface {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: min(84svh, 860px);
  padding: clamp(28px, 4vw, 54px);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.06) 40%, transparent 68%),
    linear-gradient(160deg, #e0d6cb 0%, var(--taupe) 46%, var(--taupe-deep) 100%);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.panel__surface::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: calc(var(--radius-xl) - 10px);
  pointer-events: none;
}

.slide-nav {
  position: fixed;
  right: 34px;
  bottom: 28px;
  z-index: 12;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(248, 243, 236, 0.72);
  border: 1px solid rgba(100, 100, 100, 0.12);
  box-shadow: 0 14px 30px rgba(95, 77, 58, 0.1);
  backdrop-filter: blur(16px);
}

.slide-nav__button {
  border: 0;
  background: rgba(255, 255, 255, 0.56);
  color: var(--text-soft);
  padding: 10px 16px;
  border-radius: 999px;
  font: inherit;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background 180ms ease,
    opacity 180ms ease,
    transform 180ms ease;
}

.slide-nav__button:hover,
.slide-nav__button:focus-visible {
  background: rgba(255, 255, 255, 0.84);
  outline: none;
  transform: translateY(-1px);
}

.slide-nav__button:disabled {
  opacity: 0.42;
  cursor: default;
  transform: none;
}

.slide-nav__status {
  display: grid;
  gap: 2px;
  min-width: 124px;
  padding: 0 8px;
}

.slide-nav__status--menu {
  position: relative;
  padding: 0;
  min-width: 140px;
}

.slide-nav__status-button {
  padding: 10px 10px 8px;
  display: grid;
  gap: 2px;
  text-align: left;
}

.slide-nav__eyebrow {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.68rem;
  color: rgba(100, 100, 100, 0.62);
}

.slide-nav__label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-soft);
}

.slide-nav__menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 4px);
  min-width: 210px;
  padding: 12px;
  display: grid;
  gap: 6px;
  border-radius: 18px;
  background: rgba(250, 246, 240, 0.9);
  border: 1px solid rgba(100, 100, 100, 0.12);
  box-shadow: 0 18px 40px rgba(95, 77, 58, 0.12);
  backdrop-filter: blur(14px);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.slide-nav__menu a {
  padding: 8px 10px;
  border-radius: 12px;
  letter-spacing: 0.04em;
  font-size: 0.84rem;
  color: var(--text-soft);
}

.slide-nav__menu a:hover,
.slide-nav__menu a:focus-visible {
  background: rgba(255, 255, 255, 0.52);
  outline: none;
}

.slide-nav__status--menu:hover .slide-nav__menu,
.slide-nav__status--menu:focus-within .slide-nav__menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.panel__surface--hero::after {
  content: "";
  position: absolute;
  inset: auto auto -10% -8%;
  width: 52%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.28), transparent 65%);
  filter: blur(12px);
}

.hero-grid {
  position: relative;
  z-index: 1;
  min-height: min(72svh, 760px);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
}

.hero-copy {
  align-self: end;
  padding: 0 0 8vh 0;
}

.hero-copy--wide {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 18px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: rgba(100, 100, 100, 0.68);
}

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

h1 {
  font-size: clamp(4rem, 9vw, 8.4rem);
  line-height: 0.94;
  letter-spacing: -0.06em;
  font-weight: 700;
  color: var(--text-strong);
}

h2 {
  font-size: clamp(2.4rem, 4vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
  font-weight: 700;
  color: var(--text-strong);
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text-strong);
}

.card-title-soft {
  font-size: 1.22rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.section-heading p,
.glass-card p,
.contact-row a,
.flow__node {
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  line-height: 1.65;
  font-weight: 400;
  color: var(--text-soft);
}

.hero-copy__intro {
  max-width: 760px;
  margin-top: 20px;
  font-size: clamp(1.05rem, 1.45vw, 1.28rem);
  line-height: 1.8;
  font-weight: 400;
  color: var(--text-soft);
}

.agenda-card {
  align-self: center;
  justify-self: end;
  width: min(100%, 430px);
  padding: 28px;
}

.summary-card {
  width: 100%;
  max-width: none;
  margin-top: 0;
}

.agenda-timeline {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: 18px;
}

.agenda-timeline::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: rgba(255, 255, 255, 0.3);
}

.agenda-item {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  align-items: start;
}

.agenda-item__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.26);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-strong);
}

.agenda-item h3 {
  font-size: 1.08rem;
  margin-bottom: 6px;
}

.agenda-item p {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--text-soft);
}

.glass-card,
.flow__node {
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.glass-card__tag {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: rgba(88, 88, 88, 0.8);
}

.detail-list {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  color: var(--text-soft);
}

.detail-list li {
  font-size: 1rem;
  line-height: 1.55;
}

.section-heading {
  display: grid;
  gap: 16px;
  max-width: 720px;
}

.section-heading p {
  max-width: 620px;
}

.diagram-grid,
.systems-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 52px;
}

.systems-layout--balanced {
  align-items: start;
}

.systems-layout--architecture {
  grid-template-columns: 1fr 1fr;
}

.systems-layout--etl {
  grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
  align-items: start;
  gap: 24px;
  margin-top: 18px;
}

.problem-grid {
  position: relative;
  align-items: stretch;
}

.problem-row-bands {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: repeat(4, minmax(132px, 1fr));
  gap: 18px;
  pointer-events: none;
}

.problem-row-band {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.glass-card {
  position: relative;
  z-index: 1;
  padding: 26px;
  border-radius: var(--radius-lg);
}

.glass-card--feature {
  min-height: 320px;
  display: grid;
  align-content: start;
  gap: 14px;
}

.glass-card--compact {
  min-height: 0;
}

.glass-stack--stretch,
.glass-card--stretch {
  height: 100%;
}

.glass-stack--stretch {
  align-self: stretch;
}

.about-stack {
  grid-template-rows: 1.5fr auto;
}

.flow {
  position: relative;
  display: grid;
  align-content: center;
  gap: 18px;
}

.flow__node {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-radius: 999px;
}

.flow__node span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
  font-size: 0.86rem;
  font-weight: 600;
}

.flow__arrow {
  height: 38px;
  margin-left: 18px;
  border-left: 1px solid rgba(255, 255, 255, 0.34);
  position: relative;
}

.flow__arrow::after {
  content: "";
  position: absolute;
  left: -4px;
  bottom: 0;
  width: 8px;
  height: 8px;
  border-right: 1px solid rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.34);
  transform: rotate(45deg);
}

.glass-stack {
  display: grid;
  gap: 18px;
}

.problem-stack {
  grid-template-rows: repeat(4, minmax(132px, 1fr));
}

.problem-stack .glass-card {
  height: auto;
  min-height: 0;
  align-self: center;
  width: calc(100% - 28px);
  justify-self: center;
}

.problem-details {
  align-content: start;
  padding-left: 36px;
}

.problem-details .glass-card {
  border-left: 0;
}

.problem-grid .glass-stack:first-of-type .glass-card {
  justify-self: stretch;
}

.problem-grid .glass-stack:first-of-type {
  padding-right: 36px;
}

.glass-stack--wide {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 52px;
}

.wireframe {
  position: relative;
  min-height: 380px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.wireframe--large {
  margin-top: 52px;
  min-height: 460px;
}

.wireframe__box {
  position: absolute;
  width: 38%;
  height: 88px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.14);
}

.wireframe__box--wide {
  width: 52%;
  top: 14%;
  left: 10%;
}

.wireframe__box:not(.wireframe__box--wide):first-of-type {
  bottom: 18%;
  left: 10%;
}

.wireframe__box:last-of-type {
  bottom: 18%;
  right: 10%;
}

.wireframe__connector {
  position: absolute;
  border-top: 1px solid rgba(255, 255, 255, 0.36);
}

.wireframe__connector--a {
  top: 36%;
  left: 36%;
  width: 1px;
  height: 20%;
  border-top: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.36);
}

.wireframe__connector--b {
  bottom: 30%;
  left: 29%;
  width: 42%;
}

.architecture-diagram {
  position: relative;
  min-height: 470px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.architecture-node,
.architecture-zone {
  position: absolute;
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(16px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.24);
}

.architecture-node__tag {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: rgba(88, 88, 88, 0.78);
}

.architecture-node p,
.architecture-zone p {
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text-soft);
}

.architecture-node__icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.22);
  position: relative;
}

.architecture-node__icon--events::before,
.architecture-node__icon--queue::before,
.architecture-node__icon--compute::before,
.architecture-node__icon--bucket::before,
.architecture-node__icon--service::before {
  content: "";
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  margin: 9px auto;
}

.architecture-node__icon--events::before {
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255,255,255,0.95) 0 22%, transparent 24%),
    radial-gradient(circle at 80% 30%, rgba(255,255,255,0.95) 0 18%, transparent 20%),
    radial-gradient(circle at 35% 78%, rgba(255,255,255,0.95) 0 16%, transparent 18%);
}

.architecture-node__icon--queue::before {
  border-radius: 4px;
  border: 2px solid rgba(255,255,255,0.9);
  box-shadow: 0 5px 0 -3px rgba(255,255,255,0.9), 0 -5px 0 -3px rgba(255,255,255,0.9);
}

.architecture-node__icon--compute::before {
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.75));
  box-shadow: 0 6px 0 -3px rgba(255,255,255,0.9);
}

.architecture-node__icon--bucket::before {
  width: 20px;
  height: 16px;
  margin: 10px auto;
  border-radius: 50% 50% 32% 32% / 35% 35% 65% 65%;
  border: 2px solid rgba(255,255,255,0.92);
}

.architecture-node__icon--service::before {
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.92);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,0.18);
}

.architecture-node--sources {
  top: 28px;
  left: 24px;
  width: 170px;
  min-height: 84px;
}

.architecture-node--ingestion {
  top: 28px;
  left: 228px;
  width: 170px;
  min-height: 84px;
}

.architecture-node--compute {
  top: 28px;
  left: 432px;
  width: 170px;
  min-height: 96px;
}

.architecture-zone {
  width: 170px;
  min-height: 96px;
}

.architecture-zone--raw {
  bottom: 24px;
  left: 432px;
}

.architecture-zone--core {
  bottom: 24px;
  left: 228px;
}

.architecture-zone--agg {
  bottom: 24px;
  left: 24px;
}

.architecture-node--consumption {
  top: 236px;
  left: 214px;
  width: 176px;
  opacity: 0;
  pointer-events: none;
}

.architecture-arrow {
  position: absolute;
  height: 2px;
  background: rgba(255, 255, 255, 0.46);
}

.architecture-arrow::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-top: 2px solid rgba(255, 255, 255, 0.46);
  border-right: 2px solid rgba(255, 255, 255, 0.46);
}

.architecture-arrow--sources {
  top: 82px;
  left: 194px;
  width: 34px;
}

.architecture-arrow--sources::after,
.architecture-arrow--ingestion::after {
  right: 0;
  top: -4px;
  transform: rotate(45deg);
}

.architecture-arrow--ingestion {
  top: 82px;
  left: 398px;
  width: 34px;
}

.architecture-arrow--down {
  top: 175px;
  left: 516px;
  width: 2px;
  height: 140px;
}

.architecture-arrow--down::after {
  left: -5px;
  bottom: 0;
  width: 10px;
  height: 10px;
  border-top: 0;
  border-right: 2px solid rgba(255, 255, 255, 0.46);
  border-bottom: 2px solid rgba(255, 255, 255, 0.46);
  transform: rotate(45deg);
}

.architecture-arrow--raw-to-core {
  top: 394px;
  left: 398px;
  width: 34px;
}

.architecture-arrow--core-to-agg {
  top: 394px;
  left: 194px;
  width: 34px;
}

.architecture-arrow--agg-to-consume {
  top: 304px;
  left: 390px;
  width: 0;
  display: none;
}

.architecture-arrow--raw-to-core::after,
.architecture-arrow--core-to-agg::after {
  left: 0;
  top: -5px;
  border-top: 0;
  border-right: 0;
  border-left: 2px solid rgba(255, 255, 255, 0.46);
  border-bottom: 2px solid rgba(255, 255, 255, 0.46);
  transform: rotate(45deg);
}

.wireframe__box--labeled {
  display: grid;
  place-items: center;
}

.wireframe__box--labeled span {
  font-size: 1rem;
  line-height: 1.4;
  color: var(--text-soft);
}

.etl-panel {
  position: relative;
  min-height: 508px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.etl-cascade {
  position: relative;
  min-height: 464px;
  margin-top: 0;
}

.etl-cascade__stage {
  position: absolute;
  display: grid;
  place-items: center;
  min-height: 86px;
  padding: 0 28px;
  width: 42%;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.etl-cascade__stage span {
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text-soft);
  text-align: center;
}

.etl-cascade__stage--1 {
  top: 0;
  left: 0;
  width: 46%;
}

.etl-cascade__stage--2 {
  top: 64px;
  left: 10%;
  width: 46%;
}

.etl-cascade__stage--3 {
  top: 128px;
  left: 20%;
}

.etl-cascade__stage--4 {
  top: 192px;
  left: 30%;
}

.etl-cascade__stage--5 {
  top: 256px;
  left: 40%;
}

.etl-cascade__stage--6 {
  top: 320px;
  left: 50%;
}

.etl-cascade__stage--7 {
  top: 384px;
  left: 58%;
}

.systems-layout--etl .glass-card--stretch {
  min-height: 508px;
  display: grid;
  align-content: start;
}

@media (max-width: 1200px) {
  .architecture-diagram {
    min-height: auto;
    display: grid;
    gap: 10px;
  }

  .architecture-node,
  .architecture-zone,
  .architecture-arrow {
    position: relative;
    top: auto;
    right: auto;
    left: auto;
    width: 100%;
    height: auto;
    opacity: 1;
    pointer-events: auto;
  }

  .architecture-arrow {
    width: 1px;
    height: 24px;
    justify-self: center;
    background: rgba(255, 255, 255, 0.28);
  }

  .architecture-arrow::after {
    left: -4px;
    right: auto;
    top: auto;
    bottom: 0;
    border-top: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transform: rotate(45deg);
  }

  .systems-layout--etl {
    grid-template-columns: 1fr;
  }

  .etl-cascade {
    min-height: auto;
    display: grid;
    gap: 12px;
  }

  .etl-cascade__stage {
    position: relative;
    top: auto;
    left: auto;
    width: 100%;
  }

}

.panel__surface--footer {
  min-height: 56svh;
  display: grid;
  align-content: space-between;
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  padding-top: 40px;
  align-items: center;
}

.contact-section {
  margin-top: 110px;
  padding-top: 8px;
}

.contact-section--compact {
  margin-top: 0;
  padding-top: 0;
}

.contact-section__divider {
  width: 100%;
  height: 1px;
  margin-bottom: 28px;
  background: linear-gradient(
    90deg,
    rgba(100, 100, 100, 0),
    rgba(100, 100, 100, 0.28) 18%,
    rgba(100, 100, 100, 0.28) 82%,
    rgba(100, 100, 100, 0)
  );
}

.contact-row__prompt {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(100, 100, 100, 0.68);
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 52px;
}

.summary-layout {
  margin-top: 0;
}

.summary-shell {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 0.9fr);
  gap: 28px;
  align-items: start;
}

.summary-main {
  min-width: 0;
}

.section-heading--summary h2 {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  letter-spacing: -0.04em;
  font-weight: 600;
}

.section-heading--summary {
  margin-bottom: 24px;
}

.summary-question-panel {
  min-height: 100%;
  display: grid;
  align-items: center;
  padding: 8px 0 8px 28px;
}

.impact-card {
  min-height: 240px;
  display: grid;
  align-content: start;
  gap: 12px;
}

.impact-card h3 {
  font-size: clamp(2.4rem, 4vw, 4.6rem);
  line-height: 1;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .topbar__nav {
    gap: 16px;
  }

  .topbar__submenu {
    left: auto;
    right: 0;
  }

  .hero-grid,
  .diagram-grid,
  .systems-layout,
  .glass-stack--wide,
  .impact-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-bottom: 0;
  }

  .agenda-card {
    justify-self: stretch;
    width: 100%;
  }

  .problem-details .glass-card::before,
  .problem-details .glass-card::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 14px;
  }

  .topbar {
    align-items: flex-start;
    gap: 14px;
    flex-direction: column;
  }

  .topbar__nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .topbar__submenu {
    position: static;
    min-width: 0;
    margin-top: 8px;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.28);
    backdrop-filter: none;
    box-shadow: none;
  }

  .topbar__submenu::before,
  .slide-nav__menu::before {
    display: none;
  }

  .slide-nav {
    right: 14px;
    bottom: 14px;
    left: 14px;
    justify-content: space-between;
    padding: 10px;
  }

  .slide-nav__status {
    min-width: 0;
    flex: 1;
  }

  .slide-nav__menu {
    right: 0;
    left: 0;
    bottom: calc(100% + 10px);
    min-width: 0;
  }

  .panel {
    min-height: auto;
  }

  .panel__surface {
    min-height: auto;
    border-radius: 28px;
    padding: 24px;
  }

  .hero-grid {
    min-height: auto;
  }

  h1 {
    font-size: clamp(3.2rem, 17vw, 5rem);
  }

  h2 {
    font-size: clamp(2.1rem, 11vw, 3.2rem);
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}