/* ── Reset & tokens ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f0f0f0;
  --gray-200: #e0e0e0;
  --gray-400: #9a9a9a;
  --gray-600: #5a5a5a;
  --gray-800: #2a2a2a;

  --bg: var(--white);
  --bg-alt: var(--gray-50);
  --text: var(--black);
  --text-muted: var(--gray-600);
  --border: var(--gray-200);

  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --max-width: 1120px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.35s var(--ease);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Skip link ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--black);
  color: var(--white);
  font-weight: 600;
  border-radius: 0 0 4px 4px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ── Scroll progress ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--black);
  z-index: 200;
  transition: width 0.1s linear;
}

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.nav {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.nav-logo:hover {
  opacity: 0.6;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: var(--gray-50);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--black);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  position: relative;
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0.25rem;
  left: 0.85rem;
  right: 0.85rem;
  height: 1px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--black);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

/* ── Navigation panel (outside header to avoid mobile clipping) ── */
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 140;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}

.nav-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  z-index: 150;
}

/* Desktop: inline links in header row */
@media (min-width: 769px) {
  .mobile-nav {
    top: 0;
    right: max(1.5rem, calc((100vw - var(--max-width)) / 2 + 1.5rem));
    height: var(--header-h);
    display: flex;
    align-items: center;
  }

  .mobile-nav .nav-links {
    flex-direction: row;
    gap: 0.25rem;
  }

  .nav-backdrop {
    display: none;
  }
}

/* Mobile: slide-in drawer */
@media (max-width: 768px) {
  .mobile-nav {
    top: var(--header-h);
    right: 0;
    bottom: 0;
    width: min(320px, 88vw);
    pointer-events: none;
    visibility: hidden;
  }

  .mobile-nav.open {
    pointer-events: auto;
    visibility: visible;
  }

  .mobile-nav .nav-links {
    flex-direction: column;
    gap: 0;
    height: 100%;
    width: 100%;
    padding: 1.5rem 1.25rem 2rem;
    background: var(--white);
    border-left: 1px solid var(--border);
    box-shadow: -12px 0 40px rgba(0, 0, 0, 0.12);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
  }

  .mobile-nav.open .nav-links {
    transform: translateX(0);
  }

  .mobile-nav .nav-links a {
    padding: 1rem 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }

  .mobile-nav .nav-links a::after {
    display: none;
  }
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) 1.5rem 5rem;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 40%);
  pointer-events: none;
}

.hero-layout {
  position: relative;
  display: grid;
  gap: 3rem;
  align-items: center;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (min-width: 900px) {
  .hero-layout {
    grid-template-columns: minmax(260px, 340px) 1fr;
    gap: 4rem;
    text-align: left;
  }
}

.hero-portrait {
  margin: 0 auto;
  max-width: 320px;
}

@media (min-width: 900px) {
  .hero-portrait {
    margin: 0;
    max-width: none;
  }
}

.hero-portrait-frame {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  transition: transform var(--transition), box-shadow var(--transition);
}

.hero-portrait-frame::before {
  content: "";
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

.hero-portrait-frame:hover {
  transform: translateY(-6px);
  box-shadow: 16px 16px 0 rgba(255, 255, 255, 0.08);
}

.hero-portrait img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
}

.hero-inner {
  position: relative;
  max-width: 640px;
}

@media (min-width: 900px) {
  .hero-inner {
    max-width: none;
  }

  .hero-roles {
    justify-content: flex-start;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .hero-label {
    text-align: left;
  }
}

@media (max-width: 899px) {
  .hero-layout {
    text-align: center;
  }
}

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-credentials {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.35rem;
}

.hero-subtitle {
  font-size: 0.9rem;
  color: var(--gray-400);
  margin-bottom: 2.5rem;
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.role-card {
  text-align: left;
  padding: 1.25rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  min-width: 260px;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.role-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.04);
}

.role-title {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 0.35rem;
}

.role-org {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--gray-100);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

/* ── Sections ── */
.section {
  padding: 5.5rem 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  margin-bottom: 3rem;
}

.section-number {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gray-400);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-desc {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 520px;
}

.section-desc-light {
  color: rgba(255, 255, 255, 0.55);
}

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── About ── */
.about-grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

.about-text .lead {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 1.25rem;
  font-family: var(--font-serif);
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about-aside {
  border: 1px solid var(--border);
  padding: 1.75rem;
  background: var(--bg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.about-aside:hover {
  box-shadow: 8px 8px 0 var(--black);
  transform: translate(-4px, -4px);
}

.about-aside h3 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.about-aside ul {
  list-style: none;
}

.about-aside li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.about-aside li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.aside-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 0.25rem;
}

.aside-value {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.45;
}

/* ── Role cards ── */
.roles-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .roles-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .roles-grid .role-card:last-child {
    grid-column: 1 / -1;
    max-width: 560px;
    justify-self: center;
    width: 100%;
  }
}

.role-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.role-card:hover {
  transform: translateY(-3px);
  border-color: var(--black);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.role-card-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
  background: var(--black);
  border-radius: 50%;
}

.role-card-body {
  flex: 1;
  min-width: 0;
}

.role-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.role-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.role-card:hover .role-card-number {
  background: var(--gray-800);
}

/* ── Achievements ── */
.achievements-grid {
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 640px) {
  .achievements-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.achievement-card {
  background: var(--bg);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: background var(--transition), transform var(--transition);
}

.achievement-card:hover {
  background: var(--gray-50);
  transform: scale(1.01);
  z-index: 1;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.achievement-year {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  height: 3rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: 1px solid var(--black);
  border-radius: 50%;
}

.achievement-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ── Vision ── */
.vision-quote {
  position: relative;
  max-width: 800px;
  padding: 3rem 2.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
  transition: box-shadow var(--transition);
}

.vision-quote:hover {
  box-shadow: 12px 12px 0 var(--black);
}

.quote-mark {
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 1;
  color: var(--gray-200);
  pointer-events: none;
}

.vision-quote p {
  position: relative;
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  line-height: 1.8;
  color: var(--text);
  font-style: italic;
}

/* ── Organizations ── */
.orgs-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .orgs-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.org-block {
  border: 1px solid var(--border);
  padding: 2rem;
  background: var(--bg);
  transition: border-color var(--transition);
}

.org-block:hover {
  border-color: var(--black);
}

.org-block h3 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--black);
}

.org-block ul {
  list-style: none;
}

.org-block li {
  padding: 0.65rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s var(--ease);
}

.org-block li:hover {
  color: var(--black);
  padding-left: 0.5rem;
}

.org-block li:last-child {
  border-bottom: none;
}

/* ── Contact ── */
.section-contact {
  background: var(--black);
  color: var(--white);
}

.section-contact .section-title {
  color: var(--white);
}

.contact-grid {
  display: grid;
  gap: 1px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-item {
  display: block;
  position: relative;
  padding: 2rem 1.75rem;
  background: var(--black);
  transition: background var(--transition), transform var(--transition);
  overflow: hidden;
}

a.contact-item {
  cursor: pointer;
}

a.contact-item:hover {
  background: var(--white);
  color: var(--black);
}

a.contact-item:hover .contact-label {
  color: var(--gray-600);
}

a.contact-item:hover .contact-arrow {
  opacity: 1;
  transform: translateX(0);
}

.contact-icon {
  display: block;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.contact-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.4;
  word-break: break-word;
}

.contact-arrow {
  position: absolute;
  top: 2rem;
  right: 1.75rem;
  font-size: 1.25rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.3s, transform 0.3s var(--ease);
}

/* ── Footer ── */
.site-footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.back-to-top {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  background: var(--black);
  color: var(--white);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s, transform 0.3s var(--ease), background 0.2s;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--gray-800);
}

/* ── Focus styles ── */
:focus-visible {
  outline: 2px solid var(--black);
  outline-offset: 3px;
}

.section-contact :focus-visible {
  outline-color: var(--white);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .hero-roles {
    flex-direction: column;
    align-items: center;
  }

  .role-card {
    width: 100%;
    max-width: 320px;
  }

  .achievement-card:hover {
    transform: none;
    box-shadow: none;
  }

  .about-aside:hover {
    box-shadow: none;
    transform: none;
  }

  .vision-quote:hover {
    box-shadow: none;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}