:root {
  --bg: #122c4c;
  --bg-deep: #0b1d33;
  --card: #173a5e;
  --card-border: rgb(255 255 255 / 10%);
  --text: #fff;
  --text-muted: rgb(255 255 255 / 72%);
  --text-faint: rgb(255 255 255 / 50%);
  --accent-sky: #7fb6e0;
  --accent-blue: #2082c3;
  --accent-red: #d11920;
  --accent-yellow: #fcbb1b;
  --radius: 16px;
  --wrap: 72rem;
  --header-h: 4rem;
  --btn-cta-blue: #1a6a9c;
  --font-sans: system-ui, "Segoe UI", roboto, sans-serif;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(38rem circle at 88% -8%, rgb(127 182 224 / 20%), transparent 62%),
    radial-gradient(30rem circle at -8% 46%, rgb(209 25 32 / 12%), transparent 60%),
    radial-gradient(26rem circle at 100% 100%, rgb(32 130 195 / 16%), transparent 60%),
    linear-gradient(rgb(255 255 255 / 5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 5%) 1px, transparent 1px);
  background-position: 0 0, 0 0, 0 0, 0 0, 0 0;
  background-size: auto, auto, auto, 42px 42px, 42px 42px;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

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

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: var(--accent-sky);
}

/* header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 60px;
  background-color: rgb(11 29 51 / 80%);
  backdrop-filter: blur(12px);
  transition: background-color 0.25s ease;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-red), var(--accent-yellow), var(--accent-sky));
  opacity: 0.4;
}

.header-grid {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}

.brand-icon {
  display: flex;
  align-items: center;
  line-height: 0;
  flex-shrink: 0;
}

.brand-icon img {
  height: 40px;
  width: auto;
  transition: transform 0.25s ease;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-icon:hover img,
.brand-icon:focus-visible img {
  transform: rotate(-8deg) scale(1.1);
}

.site-nav {
  display: none;
  gap: 1.75rem;
}

.site-nav a {
  position: relative;
  padding-bottom: 0.35rem;
  color: rgb(255 255 255 / 75%);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-nav a {
  padding: 14px 20px;
  color: rgb(255 255 255 / 75%);
  text-decoration: none;
  font-size: 17px;
  font-weight: 500;
  border-bottom: 1px solid rgb(255 255 255 / 10%);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-red), var(--accent-yellow), var(--accent-sky));
  transition: left 0.25s ease, right 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  left: 0;
  right: 0;
}

.mobile-nav a:hover,
.mobile-nav a:focus-visible {
  color: var(--text);
}

/* mobile menu */

.mobile-menu {
  flex-shrink: 0;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgb(255 255 255 / 18%);
  background: rgb(255 255 255 / 6%);
  cursor: pointer;
  list-style: none;
}

.menu-toggle::-webkit-details-marker {
  display: none;
}

.hamburger {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background: rgb(255 255 255 / 85%);
  border-radius: 2px;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: rgb(255 255 255 / 85%);
  border-radius: 2px;
  transition: transform 0.25s ease, top 0.25s ease;
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  top: 7px;
}

.mobile-menu[open] .hamburger {
  background: transparent;
}

.mobile-menu[open] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu[open] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-panel {
  position: absolute;
  top: 100%;
  left: 16px;
  right: 16px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 14px;
  background: rgb(11 29 51 / 94%);
  backdrop-filter: blur(16px);
  border: 1px solid rgb(255 255 255 / 14%);
  box-shadow: 0 24px 48px rgb(0 0 0 / 45%);
  animation: panel-in 0.25s ease both;
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-sky));
  color: #08111d;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: linear-gradient(135deg, var(--accent-sky), var(--accent-blue));
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: rgb(255 255 255 / 30%);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

.btn-cta {
  position: relative;
  overflow: hidden;
  padding: 0.6rem 1.3rem;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-cta-blue) 0%, var(--btn-cta-blue) 75%, var(--accent-sky) 100%);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-cta::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 45%;
  height: 100%;
  background: linear-gradient(115deg, transparent, rgb(255 255 255 / 55%), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s ease;
}

.btn-cta:hover,
.btn-cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgb(127 182 224 / 35%);
}

.btn-cta:hover::after,
.btn-cta:focus-visible::after {
  left: 130%;
}

.mobile-panel .btn-cta {
  margin: 8px 20px 20px;
}

/* header responsive visibility: after .btn/.btn-cta so display wins the tie */

.site-nav,
.header-cta {
  display: none;
}

@media (width >= 64em) {
  .header-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    column-gap: 1rem;
    padding: 0 1.5rem;
  }

  .site-header {
    height: var(--header-h);
  }

  .brand-icon {
    grid-column: 1;
    justify-self: start;
  }

  .brand-icon img {
    height: 60px;
  }

  .site-nav {
    display: flex;
    grid-column: 2;
    justify-self: center;
  }

  .header-cta {
    display: inline-flex;
    grid-column: 3;
    justify-self: end;
  }

  .mobile-menu {
    display: none;
  }
}

/* main / sections */

.section {
  padding: 5rem 0;
  position: relative;
}

.section-alt {
  border-block: 1px solid var(--card-border);
}

.section-warm {
  background-image:
    radial-gradient(40rem circle at 12% 0%, rgb(209 25 32 / 10%), transparent 60%),
    radial-gradient(30rem circle at 100% 100%, rgb(252 187 27 / 9%), transparent 60%);
}

.section-cool {
  background-image: radial-gradient(40rem circle at 88% 10%, rgb(127 182 224 / 12%), transparent 60%);
}

.section h2 {
  font-size: 1.9rem;
  margin-bottom: 2.5rem;
}

.flag-divider {
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--accent-red),
    var(--accent-yellow),
    #fff,
    var(--accent-sky),
    var(--accent-blue)
  );
  opacity: 0.5;
}

/* hero */

.hero {
  padding: 4.5rem 0 5rem;
}

.hero-brand {
  text-align: center;
  margin-bottom: 3rem;
}

.hero-logo {
  display: block;
  width: min(560px, 92vw);
  height: auto;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.pill {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgb(127 182 224 / 12%);
  border: 1px solid rgb(127 182 224 / 30%);
  color: var(--accent-sky);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.75rem;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.grad {
  background: linear-gradient(90deg, var(--accent-red), var(--accent-yellow), var(--accent-sky));
  background-clip: text;
  color: transparent;
}

.lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 34rem;
  margin-bottom: 2rem;
}

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

/* orbit */

.hero-visual {
  display: flex;
  justify-content: center;
}

.orbit {
  --r-outer: 96px;
  --r-inner: 60px;
  --chip-o-w: 80px;
  --chip-o-h: 36px;
  --chip-i-w: 66px;
  --chip-i-h: 30px;
  --f-size: 56px;

  position: relative;
  width: 230px;
  height: 230px;
}

.ring-track {
  position: absolute;
  top: 50%;
  left: 50%;
  pointer-events: none;
  border-radius: 50%;
  border: 1px dashed rgb(255 255 255 / 12%);
  transform: translate(-50%, -50%);
}

.ring-track-outer {
  width: calc(var(--r-outer) * 2);
  height: calc(var(--r-outer) * 2);
}

.ring-track-inner {
  width: calc(var(--r-inner) * 2);
  height: calc(var(--r-inner) * 2);
}

.ring {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.ring-outer {
  animation: spin-cw 45s linear infinite;
}

.ring-inner {
  animation: spin-ccw 30s linear infinite;
}

@keyframes spin-cw {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spin-ccw {
  to {
    transform: rotate(-360deg);
  }
}

.chip {
  position: absolute;
  top: 50%;
  left: 50%;
}

.ring-outer .chip {
  width: var(--chip-o-w);
  height: var(--chip-o-h);
  margin: calc(var(--chip-o-h) / -2) 0 0 calc(var(--chip-o-w) / -2);
}

.ring-inner .chip {
  width: var(--chip-i-w);
  height: var(--chip-i-h);
  margin: calc(var(--chip-i-h) / -2) 0 0 calc(var(--chip-i-w) / -2);
}

.chip-o1 {
  transform: rotate(0deg) translate(0, calc(-1 * var(--r-outer))) rotate(0deg);
  animation: orbit-o1 45s linear infinite;
}

.chip-o2 {
  transform: rotate(90deg) translate(0, calc(-1 * var(--r-outer))) rotate(-90deg);
  animation: orbit-o2 45s linear infinite;
}

.chip-o3 {
  transform: rotate(180deg) translate(0, calc(-1 * var(--r-outer))) rotate(-180deg);
  animation: orbit-o3 45s linear infinite;
}

.chip-o4 {
  transform: rotate(270deg) translate(0, calc(-1 * var(--r-outer))) rotate(-270deg);
  animation: orbit-o4 45s linear infinite;
}

.chip-i1 {
  transform: rotate(45deg) translate(0, calc(-1 * var(--r-inner))) rotate(-45deg);
  animation: orbit-i1 30s linear infinite;
}

.chip-i2 {
  transform: rotate(135deg) translate(0, calc(-1 * var(--r-inner))) rotate(-135deg);
  animation: orbit-i2 30s linear infinite;
}

.chip-i3 {
  transform: rotate(225deg) translate(0, calc(-1 * var(--r-inner))) rotate(-225deg);
  animation: orbit-i3 30s linear infinite;
}

.chip-i4 {
  transform: rotate(315deg) translate(0, calc(-1 * var(--r-inner))) rotate(-315deg);
  animation: orbit-i4 30s linear infinite;
}

@keyframes orbit-o1 {
  from {
    transform: rotate(0deg) translate(0, calc(-1 * var(--r-outer))) rotate(0deg);
  }

  to {
    transform: rotate(0deg) translate(0, calc(-1 * var(--r-outer))) rotate(-360deg);
  }
}

@keyframes orbit-o2 {
  from {
    transform: rotate(90deg) translate(0, calc(-1 * var(--r-outer))) rotate(-90deg);
  }

  to {
    transform: rotate(90deg) translate(0, calc(-1 * var(--r-outer))) rotate(-450deg);
  }
}

@keyframes orbit-o3 {
  from {
    transform: rotate(180deg) translate(0, calc(-1 * var(--r-outer))) rotate(-180deg);
  }

  to {
    transform: rotate(180deg) translate(0, calc(-1 * var(--r-outer))) rotate(-540deg);
  }
}

@keyframes orbit-o4 {
  from {
    transform: rotate(270deg) translate(0, calc(-1 * var(--r-outer))) rotate(-270deg);
  }

  to {
    transform: rotate(270deg) translate(0, calc(-1 * var(--r-outer))) rotate(-630deg);
  }
}

@keyframes orbit-i1 {
  from {
    transform: rotate(45deg) translate(0, calc(-1 * var(--r-inner))) rotate(-45deg);
  }

  to {
    transform: rotate(45deg) translate(0, calc(-1 * var(--r-inner))) rotate(315deg);
  }
}

@keyframes orbit-i2 {
  from {
    transform: rotate(135deg) translate(0, calc(-1 * var(--r-inner))) rotate(-135deg);
  }

  to {
    transform: rotate(135deg) translate(0, calc(-1 * var(--r-inner))) rotate(225deg);
  }
}

@keyframes orbit-i3 {
  from {
    transform: rotate(225deg) translate(0, calc(-1 * var(--r-inner))) rotate(-225deg);
  }

  to {
    transform: rotate(225deg) translate(0, calc(-1 * var(--r-inner))) rotate(135deg);
  }
}

@keyframes orbit-i4 {
  from {
    transform: rotate(315deg) translate(0, calc(-1 * var(--r-inner))) rotate(-315deg);
  }

  to {
    transform: rotate(315deg) translate(0, calc(-1 * var(--r-inner))) rotate(45deg);
  }
}

.chip-face {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  pointer-events: auto;
  width: 100%;
  height: 100%;
  padding: 0 0.6rem;
  border-radius: 12px;
  border: 1px solid rgb(255 255 255 / 22%);
  box-shadow: 0 8px 18px rgb(0 0 0 / 35%), inset 0 1px 0 rgb(255 255 255 / 25%);
  backdrop-filter: blur(6px);
  color: var(--text);
  font-size: 0.68rem;
  font-weight: 600;
  white-space: nowrap;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.chip-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ring-outer .chip-face {
  opacity: 0.96;
}

.ring-inner .chip-face {
  opacity: 0.72;
  font-size: 0.62rem;
}

.chip-face svg {
  width: 1rem;
  height: 1rem;
  flex: none;
}

.chip-face .flag {
  font-size: 0.95rem;
  line-height: 1;
}

.chip-face:hover {
  transform: scale(1.15);
  z-index: 5;
}

.face-red {
  background: linear-gradient(135deg, rgb(209 25 32 / 40%), rgb(209 25 32 / 10%));
}

.face-red:hover {
  box-shadow: 0 0 26px rgb(209 25 32 / 55%), inset 0 1px 0 rgb(255 255 255 / 30%);
}

.face-yellow {
  background: linear-gradient(135deg, rgb(252 187 27 / 40%), rgb(252 187 27 / 10%));
}

.face-yellow:hover {
  box-shadow: 0 0 26px rgb(252 187 27 / 55%), inset 0 1px 0 rgb(255 255 255 / 30%);
}

.face-sky {
  background: linear-gradient(135deg, rgb(127 182 224 / 40%), rgb(127 182 224 / 10%));
}

.face-sky:hover {
  box-shadow: 0 0 26px rgb(127 182 224 / 55%), inset 0 1px 0 rgb(255 255 255 / 30%);
}

.face-blue {
  background: linear-gradient(135deg, rgb(32 130 195 / 40%), rgb(32 130 195 / 10%));
}

.face-blue:hover {
  box-shadow: 0 0 26px rgb(32 130 195 / 55%), inset 0 1px 0 rgb(255 255 255 / 30%);
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  transform: translate(-50%, -50%);
}

.orbit-f {
  display: block;
  width: var(--f-size);
  height: auto;
  filter: drop-shadow(0 6px 16px rgb(0 0 0 / 45%));
  animation: orbit-float 4s ease-in-out infinite;
}

@keyframes orbit-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

.orbit:hover .ring-outer,
.orbit:hover .ring-inner,
.orbit:hover .chip-o1,
.orbit:hover .chip-o2,
.orbit:hover .chip-o3,
.orbit:hover .chip-o4,
.orbit:hover .chip-i1,
.orbit:hover .chip-i2,
.orbit:hover .chip-i3,
.orbit:hover .chip-i4,
.orbit:hover .orbit-f {
  animation-play-state: paused;
}

/* scroll reveal */

.section,
.card,
.member {
  animation: reveal-up 0.6s ease both;
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .ring-outer,
  .ring-inner,
  .chip-o1,
  .chip-o2,
  .chip-o3,
  .chip-o4,
  .chip-i1,
  .chip-i2,
  .chip-i3,
  .chip-i4,
  .orbit-f,
  .section,
  .card,
  .member,
  .mobile-panel {
    animation: none;
  }
}

/* cards */

.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:nth-child(2) {
  animation-delay: 0.1s;
}

.card:nth-child(3) {
  animation-delay: 0.2s;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1.1rem;
  border-radius: 10px;
}

.card-icon svg {
  width: 1.3rem;
  height: 1.3rem;
}

.card-red::before {
  background: var(--accent-red);
}

.card-red .card-icon {
  background: rgb(209 25 32 / 16%);
  color: var(--accent-red);
}

.card-red:hover {
  box-shadow: 0 16px 34px rgb(209 25 32 / 22%);
}

.card-yellow::before {
  background: var(--accent-yellow);
}

.card-yellow .card-icon {
  background: rgb(252 187 27 / 16%);
  color: var(--accent-yellow);
}

.card-yellow:hover {
  box-shadow: 0 16px 34px rgb(252 187 27 / 20%);
}

.card-sky::before {
  background: var(--accent-sky);
}

.card-sky .card-icon {
  background: rgb(127 182 224 / 16%);
  color: var(--accent-sky);
}

.card-sky:hover {
  box-shadow: 0 16px 34px rgb(127 182 224 / 22%);
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-muted);
}

/* team */

.team {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.member {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.member:nth-child(2) {
  animation-delay: 0.1s;
}

.member:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 34px rgb(0 0 0 / 30%);
}

.avatar {
  width: 5rem;
  height: 5rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgb(255 255 255 / 20%);
}

.member h3 {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.role {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.cv-link {
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.cv-link:hover,
.cv-link:focus-visible {
  text-decoration: underline;
}

/* contact */

.contact-wrap {
  text-align: center;
  max-width: 34rem;
}

.contact-wrap p {
  color: var(--text-muted);
  margin: 1rem 0 2rem;
}

/* footer */

.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 2.5rem 0;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.footer-wrap p {
  margin: 0;
}

/* responsive */

@media (width >= 30em) {
  .orbit {
    --r-outer: 130px;
    --r-inner: 80px;
    --chip-o-w: 92px;
    --chip-o-h: 40px;
    --chip-i-w: 76px;
    --chip-i-h: 34px;
    --f-size: 68px;

    width: 300px;
    height: 300px;
  }
}

@media (width >= 56.25em) {
  .hero-grid {
    grid-template-columns: 1.1fr 1fr;
  }

  .hero h1 {
    font-size: 3.25rem;
  }

  .hero-brand {
    margin-bottom: 3.5rem;
  }

  .orbit {
    --r-outer: 152px;
    --r-inner: 94px;
    --chip-o-w: 108px;
    --chip-o-h: 46px;
    --chip-i-w: 88px;
    --chip-i-h: 38px;
    --f-size: 84px;

    width: 360px;
    height: 360px;
  }
}