/* ==========================================================================
   Arctic RISE — stylesheet
   --------------------------------------------------------------------------
   1. Settings (colours, fonts, hero image)   ← most edits happen here
   2. Base
   3. Layout helpers
   4. Header & navigation
   5. Hero
   6. Hero illustration (platforms, paths, labels)
   7. Content sections
   8. Footer
   9. Responsive adjustments
   10. Reduced motion
   ========================================================================== */


/* 1. SETTINGS ============================================================== */
:root {
  /* Hero background photograph — replace the file or change this path */
  --hero-image: url("../assets/hero-landscape.jpg");
  --hero-position: center bottom;

  /* Colours */
  --navy-950: #08162a;
  --navy-900: #0b1d33;
  --navy-800: #13294a;
  --blue-700: #234d78;
  --blue-600: #2f5d8a;
  --blue-400: #7c9fc2;
  --blue-200: #c9d8e8;
  --ice-100:  #eef3f8;
  --ice-50:   #f6f9fb;
  --white:    #ffffff;
  --ink:      #15202f;
  --muted:    #4c5a6c;
  --line:     #dbe3ec;

  /* Illustration colours */
  --obs-icon:   #ffffff;
  --obs-insitu: #e4eef7;
  --obs-beam:   #bfe0f2;

  /* Typography */
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Charter", "Georgia", "Times New Roman", serif;

  /* Spacing & sizing */
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-space: clamp(4.5rem, 9vw, 7.5rem);
  --header-h: 72px;
  --radius: 4px;
}


/* 2. BASE ================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.2;
  color: var(--navy-900);
}

h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}

h4 {
  font-size: 1rem;
  font-weight: 600;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--blue-600); text-underline-offset: 0.18em; }
a:hover { color: var(--navy-900); }

ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
  border-radius: 2px;
}

[id] { scroll-margin-top: calc(var(--header-h) + 8px); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -100px;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--white);
  color: var(--navy-900);
  font-weight: 600;
  border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }


/* 3. LAYOUT HELPERS ======================================================== */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: var(--section-space) 0; }
.section--tint { background: var(--ice-50); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { margin-bottom: clamp(2rem, 4vw, 3rem); max-width: 46rem; }
.section-head--wide { max-width: 56rem; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-600);
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
}

.lead {
  font-size: clamp(1.15rem, 1.6vw, 1.3rem);
  line-height: 1.6;
  color: var(--navy-800);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.prose { color: var(--muted); }
.prose em { font-style: normal; font-weight: 500; color: var(--ink); }

.small-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.75rem;
}


/* 4. HEADER & NAVIGATION =================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  color: var(--white);
  transition: background-color 0.25s ease, box-shadow 0.25s ease, color 0.25s ease;
}

/* Solid header once the page has scrolled (class added by js/main.js) */
.site-header.is-scrolled,
.site-header.menu-open {
  background: rgba(255, 255, 255, 0.97);
  color: var(--navy-900);
  box-shadow: 0 1px 0 var(--line);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
  line-height: 1;
}
.wordmark:hover { color: inherit; }
.wordmark__text { font-weight: 400; }
.wordmark__text strong { font-weight: 700; letter-spacing: 0.08em; }
.wordmark__mark { width: 14px; height: 22px; flex: none; }
.wordmark__mark line { stroke: currentColor; stroke-width: 1.4; opacity: 0.6; }
.wordmark__mark circle { fill: currentColor; }

.site-nav ul { display: flex; gap: clamp(1rem, 2.4vw, 2.25rem); }

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 0.4rem 0;
  color: inherit;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.88;
}
.site-nav a:hover { opacity: 1; color: inherit; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.site-nav a:hover::after,
.site-nav a[aria-current="true"]::after { transform: scaleX(1); }
.site-nav a[aria-current="true"] { opacity: 1; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 22px; height: 1.5px;
  margin: 0 auto;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before,
.nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-7px) rotate(-45deg); }


/* 5. HERO ================================================================== */
.hero {
  --hero-h: max(640px, min(92svh, 920px));
  position: relative;
  min-height: var(--hero-h);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--navy-900);
  isolation: isolate;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-color: var(--navy-800);
  background-image: var(--hero-image);
  background-size: cover;
  background-position: var(--hero-position);
}

/* Dark translucent overlay for legible text: darker behind the text column
   and under the header, lighter over the landscape. */
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(8, 22, 42, 0.78) 0%, rgba(8, 22, 42, 0.5) 40%, rgba(8, 22, 42, 0.18) 75%, rgba(8, 22, 42, 0.12) 100%),
    linear-gradient(180deg, rgba(8, 22, 42, 0.45) 0%, rgba(8, 22, 42, 0) 22%);
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-h) + 2rem);
  padding-bottom: 4rem;
}
.hero__content > * { max-width: min(35rem, 44vw); }

.hero__affil {
  margin: -0.75rem 0 1.75rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
}
.hero__affil a { color: var(--white); text-decoration-color: rgba(255, 255, 255, 0.45); }
.hero__affil a:hover { color: var(--white); text-decoration-color: var(--white); }

.hero__eyebrow {
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--blue-200);
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.3rem, 4.6vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--white);
  text-wrap: balance;
}

.hero__lead {
  margin: 1.5rem 0 2rem;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  color: var(--white);
  font-weight: 500;
  font-size: 0.98rem;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.hero__cta:hover { color: var(--white); background: rgba(255, 255, 255, 0.12); border-color: var(--white); }
.hero__cta:focus-visible { outline-color: var(--white); }
.hero__cta span { transition: transform 0.2s ease; }
.hero__cta:hover span { transform: translateX(3px); }

.hero__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 2.75rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.82);
}
.hero__legend li { display: inline-flex; align-items: center; gap: 0.5rem; }
.hero__legend svg { width: 28px; height: 8px; overflow: visible; }


/* 6. HERO ILLUSTRATION ===================================================== */
/* The box keeps the 800 × 900 proportions of the SVG viewBox, so the
   percentage label positions line up with the SVG drawing. */
.hero__illustration {
  position: absolute;
  z-index: 1;
  right: max(0px, calc((100vw - var(--container)) / 2 - 2rem));
  bottom: 0;
  width: min(58vw, calc((var(--hero-h) - var(--header-h) - 16px) * 0.889));
  aspect-ratio: 8 / 9;
  margin: 0;
  pointer-events: none;
}

.obs-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.obs-svg .icon,
.obs-svg .icon * {
  fill: none;
  stroke: var(--obs-icon);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.obs-svg .icon .panel { fill: rgba(255, 255, 255, 0.14); }
.obs-svg .icon--fill { fill: var(--obs-icon); stroke: none; }
.obs-svg .icon ellipse { fill: rgba(255, 255, 255, 0.16); }

/* In-situ sampling paths: solid */
.path-insitu {
  fill: none;
  stroke: var(--obs-insitu);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.85;
}
.path-insitu--tether { stroke-width: 1.2; }

/* Sampling markers */
.marker { fill: var(--obs-insitu); stroke: rgba(8, 22, 42, 0.35); stroke-width: 1; }

/* Remote-sensing beams: dashed (colour comes from the fade gradients in the SVG) */
.beam {
  fill: none;
  stroke-width: 1.5;
  stroke-dasharray: 5 6;
  stroke-linecap: round;
}
.beam--legend { stroke: var(--obs-beam); }

/* Labels */
.platform-labels { position: absolute; inset: 0; }

.platform-label {
  position: absolute;
  left: var(--x);
  top: var(--y);
  padding: 0.28em 0.6em;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--white);
  background: rgba(8, 22, 42, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 3px;
}
.platform-label[data-align="left"]  { transform: translate(-100%, -50%); text-align: right; }
.platform-label[data-align="right"] { transform: translate(0, -50%); }
.platform-label[data-align="above"] { transform: translate(-50%, -100%); text-align: center; }
.platform-label[data-align="below"] { transform: translate(-50%, 0); text-align: center; }
.label-short { display: none; }


/* 7. CONTENT SECTIONS ====================================================== */

/* Partners strip (directly below the hero) */
.partners {
  padding: clamp(1.75rem, 3.5vw, 2.5rem) 0;
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.partners__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 3rem;
}
.partners__text { max-width: 40rem; font-size: 0.95rem; color: var(--muted); }
.partners__text a { color: var(--navy-800); }
.partners__logos { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 2.5rem); flex: none; }
.partner { display: block; text-decoration: none; }
.partner img { display: block; height: 48px; width: auto; }
.partner--tall img { height: 64px; }  /* upright logos such as IASC */
/* Text stand-in until a logo image is added */
.partner--text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--navy-800);
}
.partner--text:hover { color: var(--blue-600); }

/* Research priority + key documents (end of "Why" section) */
.priority {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: clamp(2rem, 4vw, 2.75rem);
  border-top: 1px solid var(--line);
}
.priority .subhead--flush { margin-top: 0; }
.priority__text { color: var(--muted); }
.priority__text em { font-style: italic; color: var(--ink); }
.doc-links { display: grid; gap: 0.75rem; }
.doc-links a {
  display: block;
  position: relative;
  padding: 1rem 2.75rem 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ice-50);
  text-decoration: none;
  transition: border-color 0.2s ease;
}
.doc-links a:hover { border-color: var(--blue-400); }
.doc-links a::after {
  content: "↗";
  position: absolute;
  right: 1.1rem; top: 1rem;
  color: var(--blue-600);
}
.doc-links__title { display: block; font-weight: 600; color: var(--navy-900); line-height: 1.4; font-size: 0.97rem; }
.doc-links__meta { display: block; margin-top: 0.3rem; font-size: 0.82rem; color: var(--muted); }


/* Why profiles matter */
.lead--narrow { max-width: 46rem; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 2.25rem clamp(1.25rem, 2.4vw, 2.25rem);
  margin-top: clamp(3rem, 6vw, 4.5rem);
}
.feature { padding-top: 1.25rem; border-top: 1px solid var(--navy-900); }
.feature h3 { margin-bottom: 0.6rem; }
.feature p { color: var(--muted); font-size: 0.98rem; }

/* About */
.subhead {
  margin: clamp(3rem, 6vw, 4.5rem) 0 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--white);
}
.platform-grid li {
  padding: 1.5rem 1.5rem 1.6rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.platform-grid h4 { margin-bottom: 0.4rem; }
.platform-grid p { font-size: 0.95rem; color: var(--muted); }

/* About: lead and themes on the left, text on the right (stacks in reading order on small screens) */
.split--about { grid-template-areas: "lead prose" "themes prose"; row-gap: 0; }
.split--about > .lead { grid-area: lead; }
.split--about > .prose { grid-area: prose; }
.split--about > .about-themes { grid-area: themes; }

/* Key themes & badge */
.subhead--tight { margin: 2.25rem 0 0.75rem; }
.theme-list { border-top: 1px solid var(--line); }
.theme-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--navy-800);
  font-size: 0.97rem;
}

.about-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}
.badge { display: block; flex: none; margin-bottom: clamp(2rem, 4vw, 3rem); }
.badge img {
  display: block;
  width: clamp(110px, 12vw, 150px);
  height: auto;
  border-radius: 50%;
}

/* Vision (dark band) */
.section--dark { background: var(--navy-900); color: rgba(255, 255, 255, 0.86); }
.section--dark h2,
.section--dark h3 { color: var(--white); }
.section--dark .eyebrow { color: var(--blue-200); }

.statement {
  max-width: 52rem;
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.3vw, 1.75rem);
  line-height: 1.45;
  color: var(--white);
}

.vision-points {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.75rem);
  margin-top: clamp(2.5rem, 5vw, 4rem);
}
.vision-points li { padding-top: 1.25rem; border-top: 1px solid rgba(255, 255, 255, 0.25); }
.vision-points h3 { margin-bottom: 0.5rem; }
.vision-points p { font-size: 0.95rem; color: rgba(255, 255, 255, 0.76); }

.vision-close {
  max-width: 46rem;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  color: rgba(255, 255, 255, 0.86);
}

.ipy-callout {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-left: 3px solid var(--blue-400);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  max-width: 52rem;
}
.ipy-callout h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.ipy-callout p { color: rgba(255, 255, 255, 0.8); }

/* Activities */
.card-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.25rem;
  counter-reset: activity;
}
.card {
  position: relative;
  padding: 1.6rem 1.5rem 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  counter-increment: activity;
  transition: border-color 0.2s ease;
}
.card:hover { border-color: var(--blue-400); }
.card::before {
  content: counter(activity, decimal-leading-zero);
  display: block;
  margin-bottom: 1.4rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--blue-600);
}
.card h3 { margin-bottom: 0.55rem; }
.card p { font-size: 0.95rem; color: var(--muted); }

/* Contact */
.contact { max-width: 46rem; text-align: center; }
.contact .eyebrow { justify-content: center; }
.contact .eyebrow::after { content: ""; width: 1.75rem; height: 1px; background: currentColor; }
.contact h2 { margin-bottom: 1.25rem; }
.contact__action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  margin-top: 2rem;
}
.contact__action[hidden] { display: none; }
.contact__address { color: var(--muted); font-size: 0.95rem; }

.affiliation {
  margin: clamp(2.5rem, 5vw, 3rem) auto 0;
  padding-top: 1.75rem;
  max-width: 30rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius);
  background: var(--navy-900);
  color: var(--white);
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.2s ease;
}
.button:hover { background: var(--blue-700); color: var(--white); }

/* Projects (main page) */
.project-card {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.project-card__tag {
  margin-bottom: 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-600);
}
.project-card h3 { font-family: var(--font-serif); font-weight: 400; font-size: 1.9rem; margin-bottom: 0.35rem; }
.project-card__full { margin-bottom: 1rem; font-weight: 500; color: var(--navy-800); }
.project-card p { color: var(--muted); }
.project-card .facts { margin: 0; }
.project-card .button { margin-top: 1.5rem; }

/* Project pages */
.hero--page { --hero-h: max(520px, min(70svh, 680px)); }
.hero--page .hero__content > * { max-width: min(46rem, 62vw); }
.hero--page .hero__title { font-size: clamp(2.6rem, 5.4vw, 4.4rem); }
.hero__subtitle {
  margin-top: 0.9rem;
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.35;
  color: rgba(255, 255, 255, 0.92);
}
.breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.8);
}
.breadcrumb a { color: var(--white); text-decoration-color: rgba(255, 255, 255, 0.45); }
.breadcrumb a:hover { color: var(--white); text-decoration-color: var(--white); }

/* Key facts (definition list) */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1.25rem 2rem;
  margin: 0;
}
.facts div { padding-top: 0.9rem; border-top: 1px solid var(--line); }
.facts dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.facts dd { margin: 0.35rem 0 0; color: var(--navy-900); font-weight: 500; line-height: 1.45; }
.facts-band { padding: clamp(2rem, 4vw, 2.75rem) 0; border-bottom: 1px solid var(--line); }

/* Concept figure */
.figure {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ice-50);
}
.figure svg { display: block; width: 100%; height: auto; }
.figure figcaption { margin-top: 1rem; font-size: 0.9rem; color: var(--muted); max-width: 52rem; }
.fig-text { font-family: var(--font-sans); fill: var(--navy-800); }
.fig-text--muted { fill: var(--muted); }

/* Numbered objectives */
.objectives { counter-reset: obj; display: grid; gap: 1rem; max-width: 52rem; }
.objectives li {
  counter-increment: obj;
  position: relative;
  padding: 1.1rem 1.25rem 1.1rem 4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.objectives li::before {
  content: counter(obj, decimal-leading-zero);
  position: absolute;
  left: 1.25rem; top: 1.05rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--blue-600);
}

/* Timeline */
.timeline { border-left: 1px solid var(--blue-400); margin-left: 0.4rem; max-width: 52rem; }
.timeline li { position: relative; padding: 0 0 1.5rem 1.75rem; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -0.4rem; top: 0.4rem;
  width: 0.8rem; height: 0.8rem;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--blue-600);
}
.timeline__when { display: block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-600); }
.timeline__what { display: block; margin-top: 0.2rem; color: var(--ink); }

/* Simple bulleted list for outcomes */
.ticks { display: grid; gap: 0.6rem; }
.ticks li { position: relative; padding-left: 1.5rem; color: var(--muted); }
.ticks li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 0.65rem; height: 1px;
  background: var(--blue-600);
}

/* People */
.people { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.25rem; }
.people li { padding: 1.25rem 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.people strong { display: block; color: var(--navy-900); }
.people span { display: block; margin-top: 0.25rem; font-size: 0.93rem; color: var(--muted); }

/* References */
.refs { display: grid; gap: 0.6rem; font-size: 0.9rem; color: var(--muted); max-width: 60rem; }
.refs a { word-break: break-word; }


/* 8. FOOTER ================================================================ */
.site-footer {
  padding: 3.5rem 0;
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem 3rem;
}
.site-footer__about { max-width: 30rem; }
.site-footer__affil a { color: inherit; }
.site-footer__affil a:hover { color: var(--white); }
.site-footer__affil { margin-top: 0.75rem; font-size: 0.82rem; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255, 255, 255, 0.6); }
.wordmark--footer { margin-bottom: 1rem; color: var(--white); }
.site-footer__note { margin-top: 0.5rem; font-size: 0.8rem; color: rgba(255, 255, 255, 0.55); }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1.75rem; }
.site-footer__nav a { color: rgba(255, 255, 255, 0.82); text-decoration: none; }
.site-footer__nav a:hover { color: var(--white); text-decoration: underline; }
.site-footer :focus-visible { outline-color: var(--white); }


/* 9. RESPONSIVE ============================================================ */

/* Tablet landscape and below: smaller labels, three-column grids */
@media (max-width: 1180px) {
  .platform-label { font-size: 0.7rem; }
  .feature-grid,
  .card-grid,
  .vision-points { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Tablet portrait & phones: stack hero text above the illustration */
@media (max-width: 959px) {
  :root { --header-h: 64px; }

  .nav-toggle { display: block; }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px -16px rgba(8, 22, 42, 0.35);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
  }
  .site-nav a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
    color: var(--navy-900);
    font-size: 1rem;
  }
  .site-nav li:last-child a { border-bottom: 0; }
  .site-nav a::after { display: none; }
  .site-nav a[aria-current="true"] { color: var(--blue-600); }

  .hero {
    display: block;
    min-height: 0;
  }
  .hero__overlay {
    background:
      linear-gradient(180deg, rgba(8, 22, 42, 0.8) 0%, rgba(8, 22, 42, 0.55) 45%, rgba(8, 22, 42, 0.2) 100%);
  }
  .hero__content { padding-bottom: 0.5rem; }
  .hero__content > * { max-width: 36rem; }
  .hero__legend { margin-top: 2rem; }

  .hero__illustration {
    position: relative;
    right: auto;
    width: min(100%, 600px);
    /* pull up: the top of the drawing is open sky */
    margin: -10% auto 0;
  }

  /* Small-screen label overrides */
  .platform-label {
    left: var(--mx, var(--x));
    top: var(--my, var(--y));
  }
  .platform-label[data-m-align="left"]  { transform: translate(-100%, -50%); text-align: right; }
  .platform-label[data-m-align="right"] { transform: translate(0, -50%); text-align: left; }
  .platform-label[data-m-align="above"] { transform: translate(-50%, -100%); text-align: center; }
  .platform-label[data-m-align="below"] { transform: translate(-50%, 0); text-align: center; }

  .split { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 1fr; }
  .hero--page .hero__content > * { max-width: 40rem; }
  .hero--page .hero__content { padding-bottom: 7.5rem; }
  .figure { overflow-x: auto; }
  .figure svg { min-width: 620px; }
  .priority { grid-template-columns: 1fr; }
  .partners__inner { flex-direction: column; align-items: flex-start; }
  .split--about { grid-template-areas: "lead" "prose" "themes"; row-gap: 1.5rem; }
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vision-points { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .badge img { width: 88px; }
  .about-head { align-items: flex-start; }
}

/* Phones */
@media (max-width: 600px) {
  body { font-size: 1rem; }
  .platform-label { font-size: 0.66rem; padding: 0.22em 0.45em; letter-spacing: 0.01em; }
  .label-full { display: none; }
  .label-short { display: inline; }
  .obs-svg .marker { transform-box: fill-box; transform-origin: center; transform: scale(1.25); }
  .platform-grid,
  .feature-grid,
  .card-grid { grid-template-columns: 1fr; }
  .site-footer__inner { flex-direction: column; }
}


/* 10. REDUCED MOTION ======================================================= */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}