/* =========================================================
   STAND-UP Doctoral Focal Award - Prototype stylesheet
   TwoFifths Design, May 2026
   Design tokens and shared primitives
   ========================================================= */

:root {
  /* Brand palette */
  --su-navy-900: #0f1a30;
  --su-navy-800: #142345;
  --su-navy-700: #1b2a4a;
  --su-navy-600: #2a3c66;
  --su-navy-500: #3a4f80;
  --su-green-700: #246b3d;
  --su-green-600: #2d8a4e;
  --su-green-500: #3aa861;
  --su-green-100: #e8f4ed;

  --su-ink: #14213d;
  --su-text: #2c3a5a;
  --su-muted: #5a6478;
  --su-border: #e3e6ec;
  --su-paper: #ffffff;
  --su-paper-warm: #f7f8fb;
  --su-paper-tinted: #eef1f6;
  --su-amber-500: #d39a1c;
  --su-amber-100: #fff4d6;

  /* Typography */
  --su-ff-display: "Space Grotesk", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --su-ff-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Type scale, fluid */
  --su-fs-display: clamp(2.6rem, 5vw + 1rem, 5.4rem);
  --su-fs-h1: clamp(2.2rem, 3vw + 1rem, 3.8rem);
  --su-fs-h2: clamp(1.7rem, 2vw + 0.8rem, 2.6rem);
  --su-fs-h3: clamp(1.25rem, 1vw + 0.7rem, 1.6rem);
  --su-fs-h4: 1.125rem;
  --su-fs-lead: clamp(1.05rem, 0.4vw + 0.95rem, 1.25rem);
  --su-fs-body: 1rem;
  --su-fs-small: 0.875rem;
  --su-fs-xsmall: 0.78rem;
  --su-fs-stat: clamp(2.6rem, 4vw + 1rem, 4.6rem);

  /* Spacing */
  --su-sp-1: 0.25rem;
  --su-sp-2: 0.5rem;
  --su-sp-3: 0.75rem;
  --su-sp-4: 1rem;
  --su-sp-5: 1.5rem;
  --su-sp-6: 2rem;
  --su-sp-7: 3rem;
  --su-sp-8: 4rem;
  --su-sp-9: 6rem;
  --su-sp-10: 8rem;

  /* Layout */
  --su-radius-sm: 6px;
  --su-radius: 12px;
  --su-radius-lg: 20px;
  --su-radius-pill: 999px;
  --su-shadow-sm: 0 1px 2px rgba(15, 26, 48, 0.06), 0 1px 3px rgba(15, 26, 48, 0.05);
  --su-shadow-md: 0 4px 16px rgba(15, 26, 48, 0.08), 0 1px 3px rgba(15, 26, 48, 0.04);
  --su-shadow-lg: 0 20px 50px rgba(15, 26, 48, 0.18), 0 4px 12px rgba(15, 26, 48, 0.08);

  --su-container: 1600px;
  --su-container-wide: 1400px;
  --su-container-narrow: 880px;
  --su-content: 1080px;
  --su-text-max: 70ch;

  --su-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--su-ff-body);
  font-size: var(--su-fs-body);
  line-height: 1.6;
  color: var(--su-text);
  background: var(--su-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: var(--su-green-700); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; transition: color 0.2s var(--su-ease); }
a:hover { color: var(--su-green-600); }
a:focus-visible { outline: 3px solid var(--su-green-500); outline-offset: 2px; border-radius: 2px; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--su-ff-display);
  color: var(--su-ink);
  margin: 0 0 var(--su-sp-4);
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 600;
}

h1 { font-size: var(--su-fs-h1); }
h2 { font-size: var(--su-fs-h2); }
h3 { font-size: var(--su-fs-h3); }
h4 { font-size: var(--su-fs-h4); }

p { margin: 0 0 var(--su-sp-4); }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.25rem; margin: 0 0 var(--su-sp-4); }
li + li { margin-top: var(--su-sp-2); }

hr { border: 0; border-top: 1px solid var(--su-border); margin: var(--su-sp-7) 0; }

:focus { outline: none; }
:focus-visible { outline: 3px solid var(--su-green-500); outline-offset: 2px; border-radius: 4px; }

.su-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--su-ink);
  color: #fff;
  padding: var(--su-sp-3) var(--su-sp-4);
  z-index: 9999;
  border-radius: 0 0 var(--su-radius) 0;
  text-decoration: none;
}
.su-skip-link:focus { left: 0; }

.su-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ---------- Layout primitives ---------- */

.su-container { width: 100%; max-width: var(--su-container); margin-inline: auto; padding-inline: var(--su-sp-5); }
@media (min-width: 768px) { .su-container { padding-inline: var(--su-sp-6); } }
@media (min-width: 1280px) { .su-container { padding-inline: var(--su-sp-7); } }
.su-container--wide { max-width: var(--su-container-wide); }
.su-container--content { max-width: var(--su-content); }
.su-container--narrow { max-width: var(--su-container-narrow); }

.su-section { padding-block: var(--su-sp-8); }
@media (min-width: 768px) { .su-section { padding-block: var(--su-sp-9); } }
@media (min-width: 1024px) { .su-section { padding-block: var(--su-sp-10); } }

.su-section--tight { padding-block: var(--su-sp-7); }
@media (min-width: 768px) { .su-section--tight { padding-block: var(--su-sp-8); } }

.su-section--paper { background: var(--su-paper); }
.su-section--warm { background: var(--su-paper-warm); }
.su-section--tinted { background: var(--su-paper-tinted); }
.su-section--ink {
  background: var(--su-navy-800);
  color: #d7dbe7;
}
.su-section--ink h1, .su-section--ink h2, .su-section--ink h3, .su-section--ink h4 { color: #fff; }
.su-section--ink a { color: var(--su-green-500); }
.su-section--ink a:hover { color: #fff; }

.su-grid { display: grid; gap: var(--su-sp-5); }
@media (min-width: 768px) { .su-grid { gap: var(--su-sp-6); } }

.su-grid--2 { grid-template-columns: 1fr; }
@media (min-width: 768px) { .su-grid--2 { grid-template-columns: repeat(2, 1fr); } }

.su-grid--3 { grid-template-columns: 1fr; }
@media (min-width: 600px) { .su-grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-grid--3 { grid-template-columns: repeat(3, 1fr); } }

.su-grid--4 { grid-template-columns: 1fr; }
@media (min-width: 600px) { .su-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-grid--4 { grid-template-columns: repeat(4, 1fr); } }

.su-split { display: grid; gap: var(--su-sp-6); grid-template-columns: 1fr; }
@media (min-width: 900px) { .su-split { grid-template-columns: 1fr 1fr; align-items: center; gap: var(--su-sp-8); } }
@media (min-width: 1280px) { .su-split { gap: var(--su-sp-9); } }
.su-split--1-2 { grid-template-columns: 1fr; }
@media (min-width: 900px) { .su-split--1-2 { grid-template-columns: 1fr 1.5fr; } }
@media (min-width: 1280px) { .su-split--1-2 { grid-template-columns: 1fr 2fr; } }

.su-split--2-1 { grid-template-columns: 1fr; }
@media (min-width: 900px) { .su-split--2-1 { grid-template-columns: 1.7fr 1fr; align-items: flex-start; } }
@media (min-width: 1280px) { .su-split--2-1 { grid-template-columns: 2fr 1fr; } }

/* Body text in wide splits stays readable */
.su-split > * > p,
.su-split > * > ul,
.su-split > * > ol { max-width: var(--su-text-max); }
.su-split > * > .su-lead { max-width: 60ch; }

/* ---------- Buttons ---------- */

.su-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--su-sp-2);
  padding: 0.95rem 1.6rem;
  font-family: var(--su-ff-body);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--su-radius-pill);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s var(--su-ease);
  white-space: nowrap;
}

.su-btn--primary {
  background: var(--su-green-600);
  color: #fff;
  border-color: var(--su-green-600);
}
.su-btn--primary:hover { background: var(--su-green-700); border-color: var(--su-green-700); color: #fff; }

.su-btn--secondary {
  background: var(--su-navy-700);
  color: #fff;
  border-color: var(--su-navy-700);
}
.su-btn--secondary:hover { background: var(--su-navy-800); border-color: var(--su-navy-800); color: #fff; }

.su-btn--ghost {
  background: transparent;
  color: var(--su-ink);
  border-color: var(--su-ink);
}
.su-btn--ghost:hover { background: var(--su-ink); color: #fff; }

.su-btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.su-btn--ghost-light:hover { background: #fff; color: var(--su-ink); border-color: #fff; }

.su-btn--sm { padding: 0.6rem 1.1rem; font-size: var(--su-fs-small); }

.su-btn .su-btn__arrow { transition: transform 0.2s var(--su-ease); }
.su-btn:hover .su-btn__arrow { transform: translateX(4px); }

/* ---------- Eyebrow / labels ---------- */

.su-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--su-sp-2);
  font-family: var(--su-ff-body);
  font-size: var(--su-fs-xsmall);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--su-green-700);
  margin-bottom: var(--su-sp-4);
}
.su-section--ink .su-eyebrow { color: var(--su-green-500); }
.su-eyebrow::before { content: ""; width: 1.5rem; height: 2px; background: currentColor; }

/* ---------- Lead / large copy ---------- */

.su-lead { font-size: var(--su-fs-lead); line-height: 1.55; color: var(--su-text); max-width: 60ch; }
.su-section--ink .su-lead { color: #c8ceda; }

/* ---------- Placeholder badge (content still to come from client) ---------- */

.su-placeholder {
  display: inline-flex;
  align-items: center;
  gap: var(--su-sp-2);
  padding: 0.3rem 0.75rem;
  background: var(--su-amber-100);
  color: #7a5a05;
  border: 1px solid #f0d68b;
  border-radius: var(--su-radius-pill);
  font-size: var(--su-fs-xsmall);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.su-placeholder::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.su-placeholder-block {
  border: 2px dashed #f0d68b;
  background: var(--su-amber-100);
  color: #5b4406;
  padding: var(--su-sp-5);
  border-radius: var(--su-radius);
}
.su-placeholder-block h4 { color: #5b4406; margin-bottom: var(--su-sp-2); }
.su-placeholder-block p { color: #6b5004; margin-bottom: 0; }

.su-placeholder-block--ink {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.85);
}
.su-placeholder-block--ink h4 { color: #fff; }
.su-placeholder-block--ink p { color: rgba(255, 255, 255, 0.78); }

/* ---------- Header / navigation ---------- */

.su-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--su-border);
}
.su-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--su-sp-5);
  padding-block: var(--su-sp-3);
  min-height: 64px;
}
.su-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--su-sp-3);
  text-decoration: none;
  color: var(--su-ink);
  line-height: 1;
}
.su-header__brand:hover { color: var(--su-ink); }
.su-header__logo {
  width: auto;
  height: 38px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}
.su-header__brand-text {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  line-height: 1.1;
}
.su-header__brand-name {
  font-family: var(--su-ff-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--su-ink);
  letter-spacing: -0.005em;
  line-height: 1.1;
}
.su-header__brand-sub {
  font-size: 0.72rem;
  color: var(--su-muted);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.2;
  white-space: nowrap;
}

.su-nav { display: none; }
.su-nav__list { display: flex; align-items: center; gap: var(--su-sp-5); list-style: none; margin: 0; padding: 0; }
.su-nav__list li { margin: 0; }
.su-nav__link {
  position: relative;
  display: inline-block;
  padding: 0;
  color: var(--su-ink);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  line-height: 1;
  transition: color 0.15s var(--su-ease);
}
.su-nav__link:hover { color: var(--su-green-700); background: transparent; }
.su-nav__link[aria-current="page"] {
  color: var(--su-navy-700);
  font-weight: 600;
}
.su-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--su-green-600);
  border-radius: 2px;
}

.su-header__cta {
  display: none;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem 0.55rem 1.1rem;
  background: var(--su-navy-700);
  color: #fff;
  border: 1.5px solid var(--su-navy-700);
  border-radius: var(--su-radius-pill);
  font-family: var(--su-ff-body);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.005em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s var(--su-ease), border-color 0.18s var(--su-ease), transform 0.18s var(--su-ease);
}
.su-header__cta:hover {
  background: var(--su-navy-800);
  border-color: var(--su-navy-800);
  color: #fff;
}
.su-header__cta-arrow {
  display: inline-flex;
  width: 14px;
  height: 14px;
  transition: transform 0.18s var(--su-ease);
}
.su-header__cta:hover .su-header__cta-arrow { transform: translateX(3px); }

.su-burger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--su-border);
  background: var(--su-paper);
  border-radius: var(--su-radius-sm);
  cursor: pointer;
  color: var(--su-ink);
}
.su-burger:hover { background: var(--su-paper-warm); }
.su-burger svg { width: 22px; height: 22px; }
.su-burger__close { display: none; }
.su-burger[aria-expanded="true"] .su-burger__open { display: none; }
.su-burger[aria-expanded="true"] .su-burger__close { display: block; }

@media (min-width: 1024px) {
  .su-nav { display: block; }
  .su-header__cta { display: inline-flex; }
  .su-burger { display: none; }
}
@media (min-width: 1280px) {
  .su-nav__list { gap: var(--su-sp-6); }
}

/* Mobile drawer */
.su-drawer {
  position: fixed;
  inset: 65px 0 0 0;
  background: var(--su-paper);
  border-top: 1px solid var(--su-border);
  padding: var(--su-sp-5);
  z-index: 99;
  overflow-y: auto;
  display: none;
}
.su-drawer[data-open="true"] { display: block; }
.su-drawer__list { list-style: none; padding: 0; margin: 0; }
.su-drawer__list li + li { margin-top: 0; border-top: 1px solid var(--su-border); }
.su-drawer__link {
  display: block;
  padding: var(--su-sp-4) var(--su-sp-2);
  color: var(--su-ink);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
}
.su-drawer__link:hover { color: var(--su-green-700); }
.su-drawer__link[aria-current="page"] { color: var(--su-green-700); font-weight: 600; }
.su-drawer__cta { margin-top: var(--su-sp-5); display: flex; flex-direction: column; gap: var(--su-sp-3); }

@media (min-width: 1024px) {
  .su-drawer { display: none !important; }
}

/* ---------- Hero ---------- */

.su-hero {
  position: relative;
  color: #fff;
  overflow: hidden;
  background: var(--su-navy-900);
}
.su-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.su-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.su-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 26, 48, 0.45) 0%, rgba(15, 26, 48, 0.85) 75%, rgba(15, 26, 48, 0.95) 100%);
}
.su-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: var(--su-sp-9) var(--su-sp-9);
  min-height: 80vh;
  display: flex;
  align-items: center;
}
@media (min-width: 768px) { .su-hero__inner { padding-block: var(--su-sp-10); min-height: 86vh; } }

.su-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--su-sp-7);
  width: 100%;
}
@media (min-width: 1024px) {
  .su-hero__grid { grid-template-columns: 1.5fr 1fr; align-items: end; gap: var(--su-sp-9); }
}
@media (min-width: 1400px) {
  .su-hero__grid { grid-template-columns: 1.7fr 1fr; gap: var(--su-sp-10); }
}

.su-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--su-sp-3);
  padding: 0.45rem 0.9rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--su-radius-pill);
  font-size: var(--su-fs-xsmall);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #d7e5dc;
  margin-bottom: var(--su-sp-5);
}
.su-hero__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--su-green-500);
  box-shadow: 0 0 0 4px rgba(58, 168, 97, 0.25);
}

.su-hero__title {
  font-size: var(--su-fs-display);
  color: #fff;
  margin-bottom: var(--su-sp-5);
  letter-spacing: -0.025em;
  font-weight: 600;
  max-width: 18ch;
}
.su-hero__title strong { color: var(--su-green-500); font-weight: 600; }

.su-hero__lead {
  font-size: var(--su-fs-lead);
  color: rgba(255, 255, 255, 0.85);
  max-width: 56ch;
  margin-bottom: var(--su-sp-6);
}

.su-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--su-sp-3);
  margin-bottom: var(--su-sp-7);
}

.su-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--su-sp-6);
  padding-top: var(--su-sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.su-hero__meta-item { color: rgba(255, 255, 255, 0.75); font-size: var(--su-fs-small); }
.su-hero__meta-item strong { display: block; color: #fff; font-family: var(--su-ff-display); font-size: 1.4rem; font-weight: 600; line-height: 1.1; margin-bottom: 2px; }

/* ---------- Stats panel ---------- */

.su-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--su-sp-5);
}
@media (min-width: 600px) { .su-stats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-stats { grid-template-columns: repeat(4, 1fr); } }

.su-stat {
  padding: var(--su-sp-5);
  background: var(--su-paper);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  display: flex;
  flex-direction: column;
  gap: var(--su-sp-2);
}
.su-stat__num {
  font-family: var(--su-ff-display);
  font-size: var(--su-fs-stat);
  font-weight: 600;
  color: var(--su-navy-700);
  line-height: 1;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
}
.su-stat__value { font-variant-numeric: tabular-nums; }
.su-stat__suffix { font-size: 0.6em; margin-left: 0.05em; letter-spacing: 0; }
.su-stat__num--text { font-size: clamp(1.6rem, 2vw + 0.6rem, 2.4rem); }
.su-stat__label { font-size: var(--su-fs-small); color: var(--su-muted); line-height: 1.4; }

.su-section--ink .su-stat {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
}
.su-section--ink .su-stat__num { color: var(--su-green-500); }
.su-section--ink .su-stat__label { color: rgba(255, 255, 255, 0.7); }

/* ---------- Cards ---------- */

.su-card {
  background: var(--su-paper);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s var(--su-ease), box-shadow 0.2s var(--su-ease), border-color 0.2s var(--su-ease);
}
.su-card:hover { transform: translateY(-3px); box-shadow: var(--su-shadow-md); border-color: #c8d1de; }
.su-card__media { position: relative; aspect-ratio: 4 / 3; background: var(--su-navy-700); overflow: hidden; }
.su-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s var(--su-ease); }
.su-card:hover .su-card__media img { transform: scale(1.04); }
.su-card__body { padding: var(--su-sp-5); display: flex; flex-direction: column; gap: var(--su-sp-3); flex: 1; }
.su-card__tag { font-size: var(--su-fs-xsmall); letter-spacing: 0.1em; text-transform: uppercase; color: var(--su-green-700); font-weight: 600; }
.su-card__title { font-size: 1.2rem; line-height: 1.25; margin: 0; }
.su-card__title a { color: var(--su-ink); text-decoration: none; }
.su-card__title a:hover { color: var(--su-green-700); }
.su-card__desc { color: var(--su-muted); font-size: 0.95rem; margin: 0; flex: 1; }
.su-card__meta { display: flex; flex-wrap: wrap; gap: var(--su-sp-2); font-size: var(--su-fs-xsmall); color: var(--su-muted); margin-top: auto; padding-top: var(--su-sp-3); border-top: 1px solid var(--su-border); }
.su-card__meta-item { display: inline-flex; align-items: center; gap: 4px; }
.su-card__cta {
  margin-top: var(--su-sp-3);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--su-green-700);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}
.su-card__cta::after { content: "→"; transition: transform 0.2s var(--su-ease); }
.su-card:hover .su-card__cta::after { transform: translateX(4px); }

/* Theme card (no image, icon-led) */
.su-theme {
  padding: var(--su-sp-6);
  background: var(--su-paper);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  transition: transform 0.2s var(--su-ease), border-color 0.2s var(--su-ease), background 0.2s var(--su-ease);
  display: flex;
  flex-direction: column;
  gap: var(--su-sp-3);
}
.su-theme:hover { transform: translateY(-3px); border-color: var(--su-green-500); }
.su-theme__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--su-green-100);
  color: var(--su-green-700);
  display: grid;
  place-items: center;
  margin-bottom: var(--su-sp-2);
}
.su-theme__icon svg { width: 24px; height: 24px; }
.su-theme__title { font-size: 1.1rem; margin: 0; color: var(--su-ink); }
.su-theme__desc { color: var(--su-muted); font-size: 0.95rem; margin: 0; }

.su-section--ink .su-theme {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
}
.su-section--ink .su-theme__title { color: #fff; }
.su-section--ink .su-theme__desc { color: rgba(255, 255, 255, 0.75); }
.su-section--ink .su-theme__icon { background: rgba(58, 168, 97, 0.18); color: var(--su-green-500); }

/* ---------- Logo strip ---------- */

.su-logos {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--su-sp-5);
  align-items: center;
}
@media (min-width: 600px) { .su-logos { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 960px) { .su-logos { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1200px) { .su-logos { grid-template-columns: repeat(7, 1fr); gap: var(--su-sp-6); } }

.su-logo {
  display: grid;
  place-items: center;
  padding: var(--su-sp-4);
  background: var(--su-paper);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  min-height: 96px;
  transition: border-color 0.2s var(--su-ease), background 0.2s var(--su-ease);
}
.su-logo:hover { border-color: #c8d1de; background: var(--su-paper-warm); }
.su-logo img { max-height: 56px; max-width: 80%; width: auto; object-fit: contain; filter: grayscale(20%); transition: filter 0.2s var(--su-ease); }
.su-logo:hover img { filter: grayscale(0%); }

/* ---------- Accordion ---------- */

.su-accordion { border-top: 1px solid var(--su-border); }
.su-accordion__item { border-bottom: 1px solid var(--su-border); }
.su-accordion__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--su-sp-5) 0;
  background: transparent;
  border: 0;
  text-align: left;
  font-family: var(--su-ff-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--su-ink);
  cursor: pointer;
  gap: var(--su-sp-4);
  transition: color 0.2s var(--su-ease);
}
.su-accordion__btn:hover { color: var(--su-green-700); }
.su-accordion__icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--su-paper-warm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background 0.2s var(--su-ease), transform 0.2s var(--su-ease);
}
.su-accordion__btn[aria-expanded="true"] .su-accordion__icon { background: var(--su-green-600); color: #fff; transform: rotate(45deg); }
.su-accordion__icon::before, .su-accordion__icon::after { content: ""; position: absolute; background: currentColor; }
.su-accordion__icon { position: relative; color: var(--su-ink); }
.su-accordion__icon::before { width: 12px; height: 2px; }
.su-accordion__icon::after { width: 2px; height: 12px; }
.su-accordion__btn[aria-expanded="true"] .su-accordion__icon::after { display: none; }
.su-accordion__panel {
  padding: 0 0 var(--su-sp-5);
  color: var(--su-text);
  max-width: 70ch;
}
.su-accordion__panel[hidden] { display: none; }

/* ---------- Footer ---------- */

.su-footer {
  background: var(--su-navy-900);
  color: #b3bccc;
  padding-top: var(--su-sp-9);
  padding-bottom: var(--su-sp-6);
  font-size: 0.93rem;
}
.su-footer h4 {
  color: #fff;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--su-ff-body);
  margin-bottom: var(--su-sp-4);
  font-weight: 600;
}
.su-footer a { color: #d7dbe7; text-decoration: none; }
.su-footer a:hover { color: var(--su-green-500); }
.su-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--su-sp-7);
}
@media (min-width: 600px) { .su-footer__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--su-sp-8); } }
.su-footer__brand-text { color: #aab3c5; max-width: 36ch; margin-top: var(--su-sp-4); }
.su-footer__list { list-style: none; padding: 0; margin: 0; }
.su-footer__list li + li { margin-top: var(--su-sp-3); }
.su-footer__bottom {
  margin-top: var(--su-sp-8);
  padding-top: var(--su-sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--su-sp-3);
  font-size: 0.83rem;
  color: #8590a5;
}
.su-footer__bottom-links { display: flex; gap: var(--su-sp-5); flex-wrap: wrap; }

.su-footer__partners {
  display: flex;
  flex-wrap: wrap;
  gap: var(--su-sp-3);
  align-items: center;
  margin-top: var(--su-sp-5);
}
.su-footer__partner-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: var(--su-radius-sm);
  padding: 8px 14px;
  height: 56px;
  min-width: 80px;
}
.su-footer__partner-chip--wide { padding: 8px 18px; }
.su-footer__partner-chip img {
  height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* ---------- CTA block ---------- */

.su-cta {
  background: linear-gradient(135deg, var(--su-navy-800) 0%, var(--su-navy-700) 100%);
  color: #fff;
  padding: var(--su-sp-7);
  border-radius: var(--su-radius-lg);
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .su-cta { padding: var(--su-sp-8); } }
.su-cta::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -15%;
  width: 60%;
  height: 160%;
  background: radial-gradient(ellipse at center, rgba(58, 168, 97, 0.25) 0%, transparent 60%);
  pointer-events: none;
}
.su-cta__inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: flex-start; gap: var(--su-sp-5); }
@media (min-width: 768px) { .su-cta__inner { flex-direction: row; align-items: center; justify-content: space-between; gap: var(--su-sp-7); } }
.su-cta h2 { color: #fff; margin-bottom: var(--su-sp-3); }
.su-cta p { color: rgba(255, 255, 255, 0.85); margin-bottom: 0; max-width: 50ch; }

/* ---------- Page header (interior pages) ---------- */

.su-page-header {
  position: relative;
  background: var(--su-navy-800);
  color: #fff;
  padding-block: var(--su-sp-8);
  overflow: hidden;
}
@media (min-width: 768px) { .su-page-header { padding-block: var(--su-sp-9); } }
.su-page-header__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.su-page-header__media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.su-page-header__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, var(--su-navy-900) 35%, rgba(15, 26, 48, 0.6) 100%);
}
.su-page-header__inner { position: relative; z-index: 1; }
.su-page-header__crumb {
  font-size: var(--su-fs-xsmall);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--su-sp-4);
}
.su-page-header__crumb a { color: rgba(255, 255, 255, 0.85); text-decoration: none; }
.su-page-header__crumb a:hover { color: #fff; }
.su-page-header h1 { color: #fff; margin-bottom: var(--su-sp-4); max-width: 22ch; }
.su-page-header p { color: rgba(255, 255, 255, 0.85); max-width: 65ch; font-size: var(--su-fs-lead); }
.su-page-header__inner { max-width: var(--su-content); }

/* ---------- Sticky sub-nav (used on multi-section pages) ---------- */

.su-subnav {
  position: sticky;
  top: 64px;
  z-index: 50;
  background: var(--su-paper);
  border-bottom: 1px solid var(--su-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
@media (min-width: 1024px) { .su-subnav { top: 73px; } }
.su-subnav__list {
  display: flex;
  align-items: center;
  justify-content: safe center;
  gap: var(--su-sp-3);
  list-style: none;
  margin: 0;
  padding: var(--su-sp-3) var(--su-sp-5);
  white-space: nowrap;
}
.su-subnav__list li { margin: 0; }
.su-subnav__link {
  display: inline-block;
  padding: var(--su-sp-2) var(--su-sp-4);
  color: var(--su-text);
  text-decoration: none;
  font-size: var(--su-fs-small);
  font-weight: 500;
  border-radius: var(--su-radius-pill);
  transition: background 0.2s var(--su-ease), color 0.2s var(--su-ease);
}
.su-subnav__link:hover { background: var(--su-paper-warm); color: var(--su-ink); }
.su-subnav__link.is-active { background: var(--su-ink); color: #fff; }

/* ---------- Image + text block ---------- */

.su-feature__media {
  border-radius: var(--su-radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--su-navy-700);
}
.su-feature__media img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Section header (eyebrow + h2 + lead) ---------- */

.su-section-header { margin-bottom: var(--su-sp-7); max-width: 70ch; }
.su-section-header--center { margin-inline: auto; text-align: center; }
.su-section-header--center .su-eyebrow { justify-content: center; }
.su-section-header h2 { margin-bottom: var(--su-sp-4); max-width: 24ch; }
.su-section-header--center h2 { margin-inline: auto; }
.su-section-header p { color: var(--su-muted); font-size: var(--su-fs-lead); max-width: 65ch; }
.su-section-header--center p { margin-inline: auto; }
.su-section--ink .su-section-header p { color: rgba(255, 255, 255, 0.78); }

/* ---------- Filter bar (used on PhD opportunities) ---------- */

.su-filter {
  display: flex;
  flex-direction: column;
  gap: var(--su-sp-4);
  padding: var(--su-sp-5);
  background: var(--su-paper-warm);
  border-radius: var(--su-radius);
  border: 1px solid var(--su-border);
  margin-bottom: var(--su-sp-6);
}
@media (min-width: 768px) { .su-filter { flex-direction: row; flex-wrap: wrap; align-items: center; gap: var(--su-sp-5); } }
.su-filter__group { display: flex; flex-direction: column; gap: var(--su-sp-2); flex: 1; min-width: 0; }
.su-filter__label { font-size: var(--su-fs-xsmall); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--su-muted); }
.su-filter__select, .su-filter__search {
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius-sm);
  background: var(--su-paper);
  font-family: var(--su-ff-body);
  font-size: 0.95rem;
  color: var(--su-ink);
}
.su-filter__select:focus-visible, .su-filter__search:focus-visible { border-color: var(--su-green-500); }
.su-filter__count { font-size: var(--su-fs-small); color: var(--su-muted); white-space: nowrap; }

/* ---------- Forms ---------- */

.su-form { display: flex; flex-direction: column; gap: var(--su-sp-5); }
.su-form__row { display: grid; gap: var(--su-sp-4); }
@media (min-width: 600px) { .su-form__row--2 { grid-template-columns: 1fr 1fr; } }
.su-field { display: flex; flex-direction: column; gap: var(--su-sp-2); }
.su-field label { font-size: var(--su-fs-small); font-weight: 600; color: var(--su-ink); }
.su-field input, .su-field select, .su-field textarea {
  padding: 0.85rem 1rem;
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius-sm);
  background: var(--su-paper);
  font-family: var(--su-ff-body);
  font-size: 1rem;
  color: var(--su-ink);
  width: 100%;
}
.su-field input:focus-visible, .su-field select:focus-visible, .su-field textarea:focus-visible { border-color: var(--su-green-500); outline: 3px solid rgba(58, 168, 97, 0.18); outline-offset: 0; }
.su-field textarea { min-height: 140px; resize: vertical; }
.su-field__help { font-size: var(--su-fs-small); color: var(--su-muted); }

/* ---------- Process steps ---------- */

.su-steps { display: grid; gap: var(--su-sp-5); grid-template-columns: 1fr; counter-reset: step; }
@media (min-width: 600px) { .su-steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-steps { grid-template-columns: repeat(4, 1fr); } }
.su-step { background: var(--su-paper); border: 1px solid var(--su-border); border-radius: var(--su-radius); padding: var(--su-sp-5); display: flex; flex-direction: column; gap: var(--su-sp-3); counter-increment: step; position: relative; }
.su-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--su-ff-display);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--su-green-600);
  letter-spacing: -0.02em;
}
.su-step h3 { font-size: 1.15rem; margin: 0; color: var(--su-ink); }
.su-step p { font-size: 0.95rem; color: var(--su-muted); margin: 0; }

/* ---------- News tiles ---------- */

.su-news { display: grid; gap: var(--su-sp-5); grid-template-columns: 1fr; }
@media (min-width: 600px) { .su-news { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .su-news { grid-template-columns: repeat(3, 1fr); } }
.su-news__item { background: var(--su-paper); border: 1px solid var(--su-border); border-radius: var(--su-radius); overflow: hidden; transition: transform 0.2s var(--su-ease), box-shadow 0.2s var(--su-ease); }
.su-news__item:hover { transform: translateY(-3px); box-shadow: var(--su-shadow-md); }
.su-news__media { aspect-ratio: 16 / 10; background: var(--su-navy-700); overflow: hidden; }
.su-news__media img { width: 100%; height: 100%; object-fit: cover; }
.su-news__body { padding: var(--su-sp-5); }
.su-news__date { font-size: var(--su-fs-xsmall); letter-spacing: 0.1em; text-transform: uppercase; color: var(--su-muted); margin-bottom: var(--su-sp-3); }
.su-news__cat { color: var(--su-green-700); font-weight: 600; }
.su-news__title { font-size: 1.15rem; line-height: 1.3; margin-bottom: var(--su-sp-3); }
.su-news__title a { color: var(--su-ink); text-decoration: none; }
.su-news__title a:hover { color: var(--su-green-700); }

/* ---------- Utility ---------- */

.su-mt-0 { margin-top: 0 !important; }
.su-mt-4 { margin-top: var(--su-sp-4); }
.su-mt-5 { margin-top: var(--su-sp-5); }
.su-mt-6 { margin-top: var(--su-sp-6); }
.su-mt-7 { margin-top: var(--su-sp-7); }
.su-mb-0 { margin-bottom: 0 !important; }
.su-mb-4 { margin-bottom: var(--su-sp-4); }
.su-mb-5 { margin-bottom: var(--su-sp-5); }
.su-mb-6 { margin-bottom: var(--su-sp-6); }
.su-text-center { text-align: center; }
.su-flex-wrap { display: flex; flex-wrap: wrap; gap: var(--su-sp-3); }
.su-section--no-top { padding-top: 0; }
.su-section--no-bottom { padding-bottom: 0; }
.su-section-header--between { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--su-sp-4); flex-wrap: wrap; max-width: none; }
.su-section-header--between h2 { margin: 0; max-width: none; }

[hidden] { display: none !important; }

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