/* =============================================================
   Rhein-Ruhr-Center for Sustainable Metallurgy and Critical Elements
   Light positive gray-green-blue scientific palette
   ============================================================= */

:root,
[data-theme='light'] {
  /* surfaces — light positive gray-green-blue */
  --color-bg: #f6fbf8;
  --color-surface: #ffffff;
  --color-surface-2: #edf7f4;
  --color-surface-offset: #def0eb;
  --color-border: #c4ded8;
  --color-divider: #d8ebe6;

  /* text — blue graphite */
  --color-text: #20353a;
  --color-text-muted: #5d7073;
  --color-text-faint: #8da09f;
  --color-text-inverse: #f7fcfa;

  /* primary — restrained blue-green */
  --color-primary: #2f8190;
  --color-primary-hover: #236775;
  --color-primary-soft: #d9f0ec;

  /* accents (used sparingly in viz) */
  --accent-plasma: #a9d6e5;     /* light blue */
  --accent-teal: #75bdb4;       /* fresh teal */
  --accent-copper: #88c8a5;     /* soft green */
  --accent-oxide: #8ab7c8;      /* blue-gray */

  /* shadows */
  --shadow-sm: 0 1px 2px rgba(32, 53, 58, 0.04);
  --shadow-md: 0 6px 18px rgba(32, 53, 58, 0.07);
  --shadow-lg: 0 18px 50px rgba(32, 53, 58, 0.1);

  /* type scale — fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.25rem);
  --text-hero: clamp(2.5rem, 1rem + 5.4vw, 5.5rem);

  /* spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 22px;

  --content-default: 1180px;
  --content-narrow: 760px;

  /* fonts */
  --font-display: 'Calibri Light', Calibri, 'Segoe UI Light', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Calibri Light', Calibri, 'Segoe UI Light', 'Segoe UI', Arial, sans-serif;
  --font-mono: 'Calibri Light', Calibri, 'Segoe UI Light', 'Segoe UI', Arial, sans-serif;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme='dark'] {
  --color-bg: #152326;
  --color-surface: #1d3034;
  --color-surface-2: #243b40;
  --color-surface-offset: #2d474c;
  --color-border: #416166;
  --color-divider: #345157;

  --color-text: #e8f0ee;
  --color-text-muted: #a9b9b8;
  --color-text-faint: #728789;
  --color-text-inverse: #142023;

  --color-primary: #9bd6cf;
  --color-primary-hover: #c3ebe7;
  --color-primary-soft: #244346;

  --accent-plasma: #a9d6e5;
  --accent-teal: #9bd6cf;
  --accent-copper: #a8d8b7;
  --accent-oxide: #a6c8d5;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.55);
}

/* prefers-color-scheme fallback when no manual theme set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #152326;
    --color-surface: #1d3034;
    --color-surface-2: #243b40;
    --color-surface-offset: #2d474c;
    --color-border: #416166;
    --color-text: #e8f0ee;
    --color-text-muted: #a9b9b8;
    --color-text-faint: #728789;
    --color-primary: #9bd6cf;
    --color-primary-hover: #c3ebe7;
    --accent-plasma: #a9d6e5;
    --accent-teal: #9bd6cf;
    --accent-copper: #a8d8b7;
    --accent-oxide: #a6c8d5;
  }
}

/* =====  Base  ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  letter-spacing: -0.004em;
}
img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}
ul[role='list'] {
  list-style: none;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
h1,
h2,
h3,
h4 {
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
p,
li {
  text-wrap: pretty;
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding: 8px 12px;
  z-index: 100;
}
.skip:focus {
  left: 12px;
  top: 12px;
}

.container {
  width: min(100% - 2.5rem, var(--content-default));
  margin-inline: auto;
}

/* =====  Header  ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.header.is-scrolled {
  border-color: var(--color-border);
}
.header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-4) 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}
.brand:hover {
  color: var(--color-text);
  text-decoration: none;
}
.brand__mark {
  color: var(--color-primary);
  flex-shrink: 0;
}
.brand__name {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand__line1 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 300;
  font-size: 15px;
  color: var(--color-text);
}
.brand__line2 {
  color: var(--color-text-muted);
  font-size: 11.5px;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  gap: var(--space-6);
  margin-left: auto;
  font-size: 14px;
}
.nav a {
  color: var(--color-text-muted);
  font-weight: 500;
}
.nav a:hover {
  color: var(--color-text);
  text-decoration: none;
}
.header__actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: inline-grid;
  place-items: center;
  color: var(--color-text-muted);
  background: transparent;
}
.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}
.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.menu-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--color-text);
}

/* =====  Buttons  ===== */
.btn {
  --pad-y: 0.75rem;
  --pad-x: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: var(--pad-y) var(--pad-x);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.005em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--sm {
  --pad-y: 0.5rem;
  --pad-x: 0.9rem;
  font-size: 13.5px;
}
.btn--primary {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-color: var(--color-text);
}
.btn--primary:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
  text-decoration: none;
}

/* =====  Hero  ===== */
.hero {
  position: relative;
  padding: clamp(var(--space-10), 0vw, var(--space-16)) 0 var(--space-12);
  overflow: hidden;
  border-bottom: 1px solid var(--color-divider);
}
.hero__bg {
  position: absolute;
  inset: 0;
  color: var(--color-text);
  opacity: 0.95;
  pointer-events: none;
}
.hero__bg svg {
  width: 100%;
  height: 100%;
}
.hero__inner {
  position: relative;
  z-index: 2;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-surface) 70%, transparent);
}
.eyebrow__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 25%, transparent);
}
.hero__title {
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-hero);
  letter-spacing: -0.03em;
  line-height: 1.02;
  color: var(--color-text);
  max-width: 20ch;
}
.hero__title em {
  font-style: normal;
  color: var(--color-primary);
  font-weight: 300;
}
.hero__subtitle {
  margin-top: var(--space-5);
  max-width: 34ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 1.05rem + 1.6vw, 2.6rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--color-text-muted);
}
.hero__subtitle em {
  font-style: normal;
  color: var(--color-primary);
}
.hero__lede {
  margin-top: var(--space-8);
  max-width: 62ch;
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  line-height: 1.55;
}
.hero__cta {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.hero__chips {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-width: 72rem;
}
.hero__chips li {
  display: flex;
}
.hero__chips a {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-surface) 65%, transparent);
  text-decoration: none;
  transition:
    color var(--transition),
    border-color var(--transition),
    background var(--transition),
    transform var(--transition);
}
.hero__chips a:hover {
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--color-primary) 35%, var(--color-border));
  background: color-mix(in srgb, var(--color-primary-soft) 55%, var(--color-surface));
  text-decoration: none;
  transform: translateY(-1px);
}
.hero__strip {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 32px;
  margin-top: var(--space-4);
  color: var(--color-primary);
}

/* =====  Sections  ===== */
.section {
  padding-block: clamp(var(--space-8), 0vw, var(--space-12));
  position: relative;
}
.section--bordered {
  border-bottom: 1px solid var(--color-divider);
}
.section--alt {
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-divider);
}
.section--cta {
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding-block: clamp(var(--space-10), 4vw, var(--space-16));
}
.section--cta .section__kicker {
  color: color-mix(in srgb, var(--color-text-inverse) 70%, transparent);
}
.section--cta .section__title {
  color: var(--color-text-inverse);
}
.section--cta .section__intro {
  color: color-mix(in srgb, var(--color-text-inverse) 78%, transparent);
}

.section__head {
  max-width: 920px;
  margin-bottom: var(--space-6);
}

#challenges.section {
  padding-top: var(--space-8);
}
.section__kicker {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--color-text);
  max-width: 24ch;
}
.section__intro {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.55;
}

.grid--two {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-12);
  align-items: start;
}
.grid--two .section__title {
  font-size: var(--text-xl);
}
.prose p + p {
  margin-top: var(--space-4);
}

/* =====  KPI strip  ===== */
.kpis {
  margin-top: var(--space-12);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.kpi {
  padding: var(--space-6) var(--space-5);
  border-right: 1px solid var(--color-divider);
}
.kpi:last-child {
  border-right: 0;
}
.kpi__value {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 1.5rem + 1.5vw, 2.75rem);
  letter-spacing: -0.03em;
  color: var(--color-primary);
  line-height: 1;
  font-feature-settings: 'tnum';
}
.kpi__label {
  margin-top: var(--space-3);
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.kpi__label a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-text-faint);
}
.kpi__label a:hover {
  color: var(--color-primary);
}

/* =====  Cards  ===== */
.grid--cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.card p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* =====  Platform diagram  ===== */
.platform {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
.platform__diagram {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: var(--color-text);
  position: sticky;
  top: 96px;
}
.platform__diagram svg {
  width: 100%;
  height: auto;
}
.platform__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.platform__list li {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.platform__list header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.platform__list h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  padding: 2px 6px;
  text-transform: uppercase;
}
.platform__list p {
  color: var(--color-text-muted);
  font-size: 15px;
}

.methods {
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}
.methods__title {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.methods__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.methods__list li {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 6px 10px;
  border-radius: 4px;
  letter-spacing: 0.01em;
}
.methods__note {
  margin-top: var(--space-5);
  max-width: 92ch;
  color: var(--color-text-muted);
  font-size: 14.5px;
  line-height: 1.65;
}
.methods__note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* =====  Models  ===== */
.grid--models {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.model {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.model__type {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}
.model__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--color-text);
}
.model > p {
  color: var(--color-text-muted);
}
.model ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px dashed var(--color-divider);
}
.model ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  color: var(--color-text);
}
.model ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}

/* =====  Sprints  ===== */
.grid--sprints {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}
.sprint {
  padding: var(--space-6);
  border-right: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.sprint:nth-child(3n) {
  border-right: 0;
}
.sprint:nth-last-child(-n + 3) {
  border-bottom: 0;
}
.sprint__tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.sprint h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}
.sprint p {
  color: var(--color-text-muted);
  font-size: 15px;
}
.sprint__meta {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-primary) !important;
  letter-spacing: 0.04em;
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-divider);
}

/* =====  Periodic tile grid  ===== */
.periodic {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
}
.ptile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
  cursor: default;
}
.ptile:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}
.ptile__sym {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1;
}
.ptile__name {
  font-size: 13.5px;
  color: var(--color-text);
  margin-top: 4px;
}
.ptile__tag {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}
.ptile--bulk {
  border-color: color-mix(in srgb, var(--accent-copper) 30%, var(--color-border));
}
.ptile--bulk .ptile__tag {
  color: var(--accent-copper);
}
.ptile--battery {
  border-color: color-mix(in srgb, var(--accent-teal) 30%, var(--color-border));
}
.ptile--battery .ptile__tag {
  color: var(--accent-teal);
}
.ptile--magnet {
  border-color: color-mix(in srgb, var(--accent-plasma) 30%, var(--color-border));
}
.ptile--magnet .ptile__tag {
  color: var(--accent-plasma);
}
.ptile--strategic .ptile__tag {
  color: var(--color-text-muted);
}
.periodic__caption {
  margin-top: var(--space-6);
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 70ch;
}

/* =====  Evidence  ===== */
.grid--evidence {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.evidence {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.evidence:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.evidence__source {
  font-family: var(--font-mono);
  font-size: var(--source-text-size, 0.78rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.evidence h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}
.evidence p {
  color: var(--color-text-muted);
  font-size: 15px;
  flex: 1;
}
.evidence a {
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14.5px;
  color: var(--color-primary);
}

/* =====  CTA  ===== */
.cta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.cta__panel {
  background: color-mix(in srgb, var(--color-text-inverse) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-text-inverse) 18%, transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}
.cta__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text-inverse) 65%, transparent);
  margin-bottom: var(--space-3);
}
.cta__email {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--color-text-inverse);
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 6px;
  word-break: break-word;
}
.cta__email span {
  display: block;
  font-size: 0.8em;
  color: color-mix(in srgb, var(--color-text-inverse) 78%, transparent);
}
.cta__email--secondary {
  margin-top: var(--space-5);
}
.cta__email:hover {
  color: var(--color-primary);
  text-decoration-color: var(--color-primary);
}
.cta__list {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.cta__list li {
  font-size: 14.5px;
  color: color-mix(in srgb, var(--color-text-inverse) 80%, transparent);
  position: relative;
  padding-left: 18px;
}
.cta__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}
.cta .btn--primary {
  margin-top: var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}
.cta .btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* =====  Footer  ===== */
.footer {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-16) 0 var(--space-8);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer__brand {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-primary);
}
.footer__brand p {
  color: var(--color-text);
  font-family: var(--font-display);
  font-style: normal;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.footer__head {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.footer__cols ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer__cols li,
.footer__cols a {
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
}
.footer__cols a:hover {
  color: var(--color-primary);
}
.footer__base {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer__note {
  max-width: 60ch;
}

/* =====  Challenge cards (landing)  ===== */
.grid--challenges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.challenge-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  color: var(--color-text);
  text-decoration: none;
  position: relative;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
  min-height: 240px;
}
.challenge-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  text-decoration: none;
}
.challenge-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
}
.challenge-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-xl);
  letter-spacing: -0.025em;
  color: var(--color-text);
  max-width: 22ch;
}
.challenge-card p {
  font-size: 15.5px;
  color: var(--color-text-muted);
  line-height: 1.55;
}
.challenge-card__arrow {
  margin-top: auto;
  font-size: 22px;
  color: var(--color-primary);
  align-self: flex-end;
  transition: transform var(--transition);
}
.challenge-card:hover .challenge-card__arrow {
  transform: translateX(4px);
}

/* =====  Capability cards (landing)  ===== */
.grid--capabilities {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-4);
}
.grid--capabilities .cap-card {
  grid-column: span 2;
}
.grid--capabilities .cap-card:nth-child(4) {
  grid-column: 2 / span 2;
}
.grid--capabilities .cap-card:nth-child(5) {
  grid-column: 4 / span 2;
}
.cap-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: var(--color-text);
  text-decoration: none;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.cap-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  text-decoration: none;
}
.cap-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.cap-card__icon svg {
  width: 100%;
  height: 100%;
}
.cap-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.cap-card p {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.55;
  flex: 1;
}
.cap-card__arrow {
  margin-top: var(--space-3);
  font-size: 18px;
  color: var(--color-primary);
  align-self: flex-end;
  transition: transform var(--transition);
}
.cap-card:hover .cap-card__arrow {
  transform: translateX(3px);
}
.capabilities__note {
  margin-top: var(--space-10);
  max-width: 72ch;
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* =====  Sub-page layout (challenges / capabilities)  ===== */
.subpage-hero {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0 var(--space-12);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--color-primary);
}
.breadcrumb__sep {
  margin-inline: var(--space-2);
  color: var(--color-text-faint);
}
.subpage-hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 1.3rem + 2.5vw, 3.25rem);
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--color-text);
  max-width: 22ch;
}
.subpage-hero__title em {
  font-style: normal;
  color: var(--color-primary);
}
.subpage-hero__lede {
  margin-top: var(--space-5);
  max-width: 60ch;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.subpage-hero__kicker {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.prose-block {
  max-width: 70ch;
}
.prose-block > * + * {
  margin-top: var(--space-4);
}
.prose-block h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
  margin-top: var(--space-8);
}
.prose-block p {
  color: var(--color-text-muted);
  line-height: 1.65;
}
.prose-block ul {
  padding-left: var(--space-5);
  color: var(--color-text-muted);
}
.prose-block ul li {
  margin-top: var(--space-2);
  line-height: 1.55;
}

.workflow-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-8);
  align-items: start;
  margin-top: var(--space-10);
}
.workflow-grid--reverse {
  grid-template-columns: 0.95fr 1.05fr;
}
.workflow-figure {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.workflow-figure img {
  width: 100%;
  height: auto;
  display: block;
}
.workflow-figure figcaption {
  padding: var(--space-5) var(--space-6);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
  background: color-mix(in srgb, var(--color-surface-2) 70%, var(--color-surface));
}
.workflow-panel {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.workflow-panel--full {
  margin-top: var(--space-10);
}
.workflow-panel__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.workflow-panel h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--color-text);
}
.workflow-panel p + p {
  margin-top: var(--space-4);
}
.workflow-panel p {
  color: var(--color-text-muted);
  line-height: 1.65;
}
.workflow-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.workflow-cards--two {
  grid-template-columns: repeat(2, 1fr);
}
.workflow-cards--stack {
  grid-template-columns: 1fr;
}
.workflow-card {
  padding: var(--space-5);
  background: color-mix(in srgb, var(--color-surface-2) 70%, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.workflow-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
}
.workflow-card p {
  margin-top: var(--space-3);
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.usecase-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

/* =====  Micromechanics & multiphysics page  ===== */
.subpage-hero--seamless {
  border-bottom: 0;
  padding-bottom: var(--space-5);
}

.mp-section--tight {
  padding-block: var(--space-3);
}

.mp-intro-figure {
  max-width: 860px;
  margin-inline: auto;
}
.mp-intro-figure__layout {
  display: grid;
  grid-template-columns: minmax(0, 580px) minmax(210px, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-12));
  align-items: stretch;
}
.mp-intro-figure .mp-figure__btn {
  align-self: start;
}
.mp-intro-captions {
  position: relative;
  min-height: 100%;
}
.mp-intro-caption {
  position: absolute;
  left: 0;
  transform: translateY(-50%);
}
.mp-intro-caption--microstructure {
  top: 16.8%;
}
.mp-intro-caption--strain {
  top: 50%;
}
.mp-intro-caption--stress {
  top: 83.6%;
}
.mp-intro-caption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0 0 4px;
}
.mp-intro-caption span {
  display: block;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0;
}
@media (max-width: 640px) {
  .mp-intro-figure__layout {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .mp-intro-captions {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .mp-intro-caption {
    position: static;
    transform: none;
  }
}


.mp-section {
  padding-block: clamp(var(--space-6), 3vw, var(--space-10));
}
.mp-section + .mp-section {
  border-top: 1px solid var(--color-divider);
}

.mp-intro {
  max-width: 64ch;
  margin: 0 auto var(--space-8);
  text-align: center;
}
.mp-lead {
  max-width: 62ch;
  margin: 0 0 clamp(var(--space-6), 3vw, var(--space-10));
}
.mp-lead .section__kicker {
  display: block;
  margin-bottom: var(--space-3);
}
.mp-lead__text {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--color-text);
}
.mp-intro .section__kicker,
.mp-row__text .section__kicker {
  display: block;
  margin-bottom: var(--space-3);
}

/* Floating figures: no card, no border. White-background images feather into
   the page via a radial mask so they sit cleanly in both light and dark mode. */
.mp-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.mp-figure img {
  width: 100%;
  height: auto;
  display: block;
  background: #fff;
  border-radius: var(--radius-md);
}
.mp-figure figcaption:not(.mp-source) {
  font-size: var(--text-sm, 0.92rem);
  color: var(--color-text-muted);
  line-height: 1.55;
}
.mp-source {
  font-family: var(--font-mono, inherit);
  font-size: var(--source-text-size, 0.78rem);
  letter-spacing: 0.01em;
  color: var(--color-text-faint);
  line-height: 1.5;
  margin-top: var(--space-2);
}
.mp-source a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-divider);
  text-underline-offset: 2px;
  transition: color var(--transition), text-decoration-color var(--transition);
}
.mp-source a:hover {
  color: var(--color-primary);
  text-decoration-color: var(--color-primary);
}


/* Click-to-zoom figure with uniform top/bottom crop on the source image */
.mp-figure__btn {
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.mp-figure__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -20px rgba(0, 0, 0, 0.35);
}
.mp-figure__btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}
.mp-figure__crop {
  display: block;
  width: 100%;
  background: #fff;
}
.mp-figure__crop img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0;
}

/* Lightbox overlay */
.mp-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 20, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: clamp(var(--space-4), 4vw, var(--space-10));
  cursor: zoom-out;
  animation: mpLightboxIn 160ms ease-out;
}
.mp-lightbox[hidden] { display: none; }
.mp-lightbox__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6);
}
.mp-lightbox__close {
  position: absolute;
  top: clamp(var(--space-3), 2vw, var(--space-6));
  right: clamp(var(--space-3), 2vw, var(--space-6));
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition);
}
.mp-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.22);
}
@keyframes mpLightboxIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Constrain low-resolution images so artifacts are less prominent */
.mp-figure--compact {
  max-width: 360px;
  margin-inline: auto;
}

/* Zoom button variant that displays its image at natural aspect ratio
   (no cropping). Used outside the 3-up overview row. */
.mp-figure__btn--free {
  aspect-ratio: auto;
  background: #fff;
}
.mp-figure__btn--free img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0;
}

.mp-source--list {
  list-style: none;
  padding: 0;
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.mp-source--list li {
  padding-left: 0;
}

/* Alternating text + image rows */
.mp-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(var(--space-8), 4vw, var(--space-12));
}
.mp-stack > .mp-row + .mp-row {
  padding-top: clamp(var(--space-8), 4vw, var(--space-12));
  border-top: 1px solid var(--color-divider);
}
.mp-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: center;
}
.mp-row--reverse .mp-row__text {
  order: 2;
}
.mp-row__text {
  max-width: 46ch;
}
.mp-row__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw, 1.95rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.mp-row__text p {
  color: var(--color-text-muted);
  line-height: 1.65;
}
.mp-row__text p + p {
  margin-top: var(--space-4);
}


/* Cross-reference chips (challenge ↔ capability) */
.crossref {
  margin-top: var(--space-12);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.crossref__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.crossref__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.crossref__chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition);
}
.crossref__chip:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-text);
  text-decoration: none;
}
.crossref__chip::after {
  content: '→';
  color: var(--color-primary);
  font-size: 14px;
}

/* Sprint list inside sub-pages reuses .grid--sprints */
.capability-sprint {
  margin-top: var(--space-12);
}
.capability-sprint .section__kicker {
  margin-bottom: var(--space-5);
}
.grid--sprints--solo {
  grid-template-columns: 1fr;
}

/* =====  Responsive  ===== */
@media (max-width: 1024px) {
  .grid--cards,
  .grid--evidence,
  .grid--sprints {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--sprints .sprint {
    border-right: 1px solid var(--color-divider);
  }
  .grid--sprints .sprint:nth-child(2n) {
    border-right: 0;
  }
  .grid--sprints .sprint:nth-last-child(-n + 3) {
    border-bottom: 1px solid var(--color-divider);
  }
  .grid--sprints .sprint:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .periodic {
    grid-template-columns: repeat(4, 1fr);
  }
  .grid--challenges {
    grid-template-columns: 1fr;
  }
  .grid--capabilities {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--capabilities .cap-card,
  .grid--capabilities .cap-card:nth-child(4),
  .grid--capabilities .cap-card:nth-child(5) {
    grid-column: auto;
  }
  .platform {
    grid-template-columns: 1fr;
  }
  .platform__diagram {
    position: static;
  }
  .grid--two {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .mp-row,
  .mp-row--reverse {
    grid-template-columns: 1fr;
  }
  .mp-row--reverse .mp-row__text {
    order: 0;
  }
  .workflow-grid,
  .workflow-grid--reverse {
    grid-template-columns: 1fr;
  }
  .usecase-gallery {
    grid-template-columns: 1fr;
  }
  .workflow-cards,
  .workflow-cards--two {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .header__inner {
    gap: var(--space-3);
  }
  .menu-toggle {
    display: inline-flex;
  }
  .header__actions {
    margin-left: auto;
  }
  .header.menu-open .nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-5);
    flex-direction: column;
    gap: var(--space-4);
  }
  .grid--cards,
  .grid--evidence,
  .grid--sprints,
  .grid--models,
  .grid--capabilities {
    grid-template-columns: 1fr;
  }
  .workflow-cards,
  .workflow-cards--two {
    grid-template-columns: 1fr;
  }
  .usecase-gallery {
    grid-template-columns: 1fr;
  }
  .mp-intro {
    text-align: left;
  }
  .grid--sprints {
    border-radius: var(--radius-lg);
  }
  .grid--sprints .sprint {
    border-right: 0 !important;
    border-bottom: 1px solid var(--color-divider) !important;
  }
  .grid--sprints .sprint:last-child {
    border-bottom: 0 !important;
  }
  .periodic {
    grid-template-columns: repeat(3, 1fr);
  }
  .kpis {
    grid-template-columns: repeat(2, 1fr);
  }
  .kpi {
    border-bottom: 1px solid var(--color-divider);
  }
  .kpi:nth-child(2n) {
    border-right: 0;
  }
  .kpi:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .cta {
    grid-template-columns: 1fr;
  }
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .footer__cols {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
  .brand__name {
    display: flex;
  }
  .brand__line1 {
    font-size: 13.5px;
  }
  .brand__line2 {
    display: none;
  }
  .hero__chips a {
    min-height: 0;
    font-size: 11px;
  }
  .footer__head {
    font-size: 12px;
  }
  .footer__cols li,
  .footer__cols a {
    font-size: 14.5px;
    line-height: 1.45;
  }
  .footer__base {
    font-size: 13.5px;
  }
}

@media (max-width: 460px) {
  .periodic {
    grid-template-columns: repeat(2, 1fr);
  }
  .header__inner {
    padding: 0.875rem 0;
  }
  .brand {
    gap: 0.625rem;
  }
  .brand__mark {
    width: 28px;
    height: 28px;
  }
  .brand__line1 {
    font-size: 12.5px;
  }
  .footer__cols {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}