:root {
  --bg: #07100d;
  --panel: #0e1d17;
  --panel2: #10231b;
  --text: #eef8f3;
  --muted: #a7bbb1;
  --line: rgba(255, 255, 255, 0.11);
  --green: #4fe0a2;
  --green2: #2bc98a;
  --mint: #cbf7e4;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius: 28px;
  --max: 1160px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Arial,
    sans-serif;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% -10%, rgba(79, 224, 162, 0.12), transparent 30%),
    radial-gradient(circle at 100% 18%, rgba(22, 185, 120, 0.08), transparent 28%),
    linear-gradient(180deg, #07100d 0%, #08120f 48%, #07100d 100%);
}
a {
  color: inherit;
}
.container {
  width: min(var(--max), calc(100% - 32px));
  margin: auto;
}
button,
input,
select,
textarea {
  font: inherit;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 16, 13, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  font-weight: 950;
  text-decoration: none;
  letter-spacing: -0.04em;
  white-space: nowrap;
}
.brand b {
  color: var(--green);
}
.links {
  display: flex;
  gap: 18px;
  margin-left: auto;
}
.links a {
  text-decoration: none;
  color: #fff;
  font-size: 0.92rem;
  font-weight: 800;
}
.links a:hover {
  color: var(--green);
}
.lang-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.lang {
  appearance: none;
  border: 1px solid var(--line);
  background: #101d18;
  color: #fff;
  border-radius: 999px;
  padding: 10px 34px 10px 14px;
  font-weight: 850;
  cursor: pointer;
}
.lang-note {
  font-size: 0.8rem;
  line-height: 1.25;
  color: #fff;
  font-weight: 800;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.hero {
  padding: 58px 0 34px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}
.box {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, #102119, #0a1712);
  box-shadow: var(--shadow);
}
.hero-main {
  padding: 52px;
  min-height: 510px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.kicker,
.eyebrow {
  color: var(--green);
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.79rem;
}
.kicker {
  display: inline-flex;
  width: max-content;
  padding: 8px 12px;
  border: 1px solid rgba(79, 224, 162, 0.22);
  background: rgba(79, 224, 162, 0.08);
  border-radius: 999px;
  color: var(--mint);
}
h1 {
  font-size: clamp(3rem, 7vw, 6.4rem);
  line-height: 0.94;
  letter-spacing: -0.06em;
  margin: 22px 0 20px;
}
h2 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
  margin: 0;
}
h3 {
  margin: 0 0 8px;
}
.accent {
  color: var(--green);
}
.lead,
.muted {
  color: var(--muted);
}
.lead {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  max-width: 700px;
  margin: 0;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 18px;
  border-radius: 15px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 950;
  cursor: pointer;
  transition: 0.18s ease;
}
.btn:hover {
  transform: translateY(-2px);
}
.primary {
  background: linear-gradient(135deg, var(--green), #35ca8c);
  color: #062016;
}
.secondary {
  background: #111f19;
  border-color: var(--line);
  color: #f4faf7;
}
.ghost {
  background: transparent;
  border-color: rgba(79, 224, 162, 0.28);
  color: var(--mint);
}
.hero-side {
  padding: 28px;
}
.hero-side h3 {
  font-size: 1.45rem;
}
.hero-side p {
  margin-top: 8px;
}
.mini-stack {
  display: grid;
  gap: 11px;
  margin-top: 24px;
}
.mini {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.025);
}
.ico {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: #152820;
  font-size: 1.2rem;
}
.mini strong {
  display: block;
}
.mini small {
  color: #8fa39a;
}
section {
  scroll-margin-top: 88px;
}
.section {
  padding: 44px 0;
}
.section-head {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
}
.section-head p {
  margin: 0;
  color: var(--muted);
}
.choice-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  gap: 16px;
}
.choice {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, #0f1e18, #0a1612);
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.choice.featured {
  border-color: rgba(79, 224, 162, 0.32);
  box-shadow:
    0 0 0 1px rgba(79, 224, 162, 0.06),
    0 25px 70px rgba(0, 0, 0, 0.24);
}
.choice p {
  color: var(--muted);
}
.badge {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(79, 224, 162, 0.1);
  border: 1px solid rgba(79, 224, 162, 0.18);
  color: var(--mint);
  font-size: 0.76rem;
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 15px;
}
.steps {
  display: grid;
  gap: 10px;
  margin: 20px 0;
}
.step {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.022);
}
.step-num {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: rgba(79, 224, 162, 0.11);
  color: var(--green);
  display: grid;
  place-items: center;
  font-weight: 950;
}
.step strong {
  display: block;
}
.step span {
  color: var(--muted);
  font-size: 0.91rem;
}
.sponsor {
  margin: 18px 0;
  padding: 16px;
  border-radius: 17px;
  background: rgba(79, 224, 162, 0.075);
  border: 1px solid rgba(79, 224, 162, 0.17);
  display: grid;
  gap: 7px;
}
.sponsor-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}
.sponsor-row b {
  color: var(--green);
}
.sponsor-row code {
  color: #fff;
  font-family: inherit;
  font-weight: 900;
}
.copy-status {
  min-height: 24px;
  margin-top: 8px;
  color: var(--green);
  font-size: 0.88rem;
  font-weight: 850;
}
.note {
  font-size: 0.82rem;
  color: #8ea198;
  margin-top: 13px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #0d1b16;
  padding: 22px;
}
.card p {
  margin: 0;
  color: var(--muted);
}
.lead-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 22px;
  border: 1px solid rgba(79, 224, 162, 0.2);
  border-radius: 30px;
  background: linear-gradient(135deg, #103827, #0b1c16 62%, #0e2a20);
  padding: clamp(26px, 4vw, 42px);
  box-shadow: var(--shadow);
}
.lead-panel p {
  color: #b8cbc2;
}
.form {
  display: grid;
  gap: 12px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
label {
  font-size: 0.84rem;
  font-weight: 850;
  color: #dceae3;
}
.field {
  width: 100%;
  border: 1px solid var(--line);
  background: #0a1712;
  color: #fff;
  border-radius: 13px;
  padding: 13px 14px;
  outline: none;
}
.field:focus {
  border-color: rgba(79, 224, 162, 0.45);
  box-shadow: 0 0 0 3px rgba(79, 224, 162, 0.08);
}
textarea.field {
  min-height: 88px;
  resize: vertical;
}
.check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: #aebfb7;
  font-size: 0.82rem;
}
.check input {
  margin-top: 4px;
}
.honeypot {
  position: absolute !important;
  left: -9999px !important;
}
.social {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 16px;
}
.social-card {
  padding: 30px;
}
.handle {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 950;
  letter-spacing: -0.05em;
  line-height: 1;
  margin: 10px 0 14px;
}
details {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #0d1a15;
  padding: 0 18px;
  margin-bottom: 9px;
}
summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 900;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
summary:after {
  content: '+';
  color: var(--green);
  font-size: 1.3rem;
}
details[open] summary:after {
  content: '–';
}
details p {
  margin: 0;
  padding: 0 0 18px;
  color: var(--muted);
}
.trustline {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.trustpill {
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(79, 224, 162, 0.17);
  background: rgba(79, 224, 162, 0.055);
  color: #bfe9d6;
  font-size: 0.78rem;
  font-weight: 850;
}
.microcopy {
  margin-top: 10px;
  color: #91a69c;
  font-size: 0.8rem;
}
.sticky-cta {
  display: none;
}
.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.footer-links a {
  color: #a9bbb2;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--green);
}
.source-note {
  font-size: 0.78rem;
  color: #8fa39a;
  margin-top: 4px;
}
.plan-block {
  margin: 20px 0 18px;
  padding: 16px;
  border: 1px solid rgba(79, 224, 162, 0.17);
  border-radius: 18px;
  background: rgba(79, 224, 162, 0.045);
}
.plan-label {
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 10px;
}
.plan-wrap {
  overflow-x: auto;
  border-radius: 13px;
  border: 1px solid var(--line);
}
.plan-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 430px;
  background: #0a1712;
}
.plan-table th,
.plan-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}
.plan-table th {
  background: #12251d;
  color: #dff8ec;
  font-weight: 950;
}
.plan-table tr:last-child td {
  border-bottom: 0;
}
.plan-table td:last-child {
  font-weight: 950;
  color: var(--green);
  white-space: nowrap;
}
.plan-source {
  font-size: 0.76rem;
  color: #8ea198;
  margin-top: 10px;
  line-height: 1.5;
}
.team-spotlight {
  margin-top: 24px;
}
.team-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 26px;
  overflow: hidden;
  background: linear-gradient(180deg, #0d1b16, #09130f);
  box-shadow: var(--shadow);
}
.team-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.team-figure figcaption {
  padding: 14px 18px;
  color: #cfe3da;
  font-weight: 850;
  letter-spacing: -0.02em;
}
footer {
  padding: 32px 0 90px;
  color: #84988f;
  font-size: 0.83rem;
}
.footer {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.legal {
  margin-top: 8px;
}
@media (max-width: 900px) {
  .nav {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    padding: 9px 0 8px;
  }
  .lang-wrap {
    margin-left: auto;
  }
  .lang {
    margin-left: 0;
  }
  .links {
    display: flex;
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 14px;
    overflow-x: auto;
    padding: 3px 0 2px;
    scrollbar-width: none;
  }
  .links::-webkit-scrollbar {
    display: none;
  }
  .links a {
    white-space: nowrap;
    font-size: 0.82rem;
  }
  .hero-grid,
  .choice-grid,
  .lead-panel,
  .social {
    grid-template-columns: 1fr;
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .hero-main {
    padding: 38px;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 620px) {
  .container {
    width: min(100% - 22px, var(--max));
  }
  .nav {
    height: 66px;
  }
  .brand {
    font-size: 0.96rem;
  }
  .hero {
    padding-top: 28px;
  }
  .hero-main {
    padding: 28px 22px;
    border-radius: 25px;
  }
  .hero-side,
  .choice,
  .lead-panel,
  .social-card {
    border-radius: 25px;
  }
  .actions .btn,
  .choice .btn {
    width: 100%;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .sponsor-row {
    flex-direction: column;
    gap: 2px;
  }
}
@media (max-width: 620px) {
  .sticky-cta {
    display: block;
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 70;
    text-decoration: none;
    text-align: center;
    padding: 14px 16px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--green), #35ca8c);
    color: #062016;
    font-weight: 950;
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.48);
    border: 1px solid rgba(255, 255, 255, 0.12);
  }
  body {
    padding-bottom: 72px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn {
    transition: none;
  }
  .btn:hover {
    transform: none;
  }
}
/* Challenge homepage: permanent, wrapping navigation keeps Bioniq.GO visible. */
.nav {
  height: auto;
  min-height: 88px;
  flex-wrap: wrap;
  padding: 14px 0;
  gap: 16px;
}
.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.15;
  letter-spacing: -0.035em;
  font-size: 1.6rem;
}
.brand b {
  color: var(--text);
}
.brand small {
  color: #fff;
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  font-weight: 700;
  text-transform: uppercase;
}
.links {
  align-items: center;
  flex-wrap: wrap;
  overflow: visible;
  gap: 8px 18px;
}
.links a {
  padding: 8px 0;
  white-space: nowrap;
  line-height: 1.4;
}
.links a[aria-current='page'] {
  color: var(--green);
  border-bottom: 2px solid var(--green);
}
.links .bioniq-link {
  color: #fff;
}
.hero {
  padding: 46px 0 22px;
}
.hero-grid {
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 40px;
}
.hero-main {
  padding: 18px 0;
  min-height: 0;
}
.hero h1 {
  font-size: clamp(2.6rem, 4.6vw, 4.9rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
  margin: 20px 0;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.hero .kicker {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  max-width: 100%;
  width: auto;
  color: var(--green);
  font-size: 0.8rem;
}
.hero .lead {
  font-size: clamp(1.05rem, 1.7vw, 1.2rem);
  line-height: 1.6;
}
.challenge-actions {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 12px;
  max-width: 820px;
  margin: 28px auto 0;
}
.challenge-actions .btn {
  min-height: 56px;
  padding: 16px 22px;
  text-align: center;
  line-height: 1.4;
  font-size: 1rem;
  overflow-wrap: anywhere;
}
.challenge-actions .secondary {
  background: transparent;
  border-color: rgba(203, 247, 228, 0.7);
  color: var(--text);
}
.hero-photo {
  margin: 0;
  border-radius: 28px;
  overflow: hidden;
  background: #123124;
  box-shadow: var(--shadow);
}
.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1/1.06;
  object-fit: cover;
}
.challenge-benefits {
  padding: 16px 0 42px;
}
.challenge-benefits h2 {
  font-size: clamp(1.8rem, 3.1vw, 2.8rem);
  margin-bottom: 22px;
}
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.benefit {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  padding: 22px 18px;
  border: 1px solid rgba(79, 224, 162, 0.19);
  border-radius: 20px;
  background: rgba(16, 45, 32, 0.45);
  line-height: 1.4;
  font-weight: 650;
}
.benefit svg {
  flex: none;
  width: 38px;
  height: 38px;
  color: #a7ecb8;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.benefit span {
  overflow-wrap: anywhere;
}
a:focus-visible,
button:focus-visible,
select:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 5px;
}
@media (max-width: 1000px) {
  .nav {
    gap: 10px 16px;
  }
  .lang-wrap {
    margin-left: auto;
  }
  .links {
    order: 3;
    width: 100%;
    margin-left: 0;
    border-top: 1px solid var(--line);
    justify-content: space-between;
    padding: 6px 0 0;
    gap: 6px 18px;
  }
  .hero-grid {
    gap: 24px;
  }
  .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 760px) {
  .container {
    width: min(var(--max), calc(100% - 36px));
  }
  .hero {
    padding-top: 26px;
  }
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .hero-main {
    padding: 0;
  }
  .hero h1 {
    font-size: clamp(2.65rem, 8.5vw, 4.8rem);
    line-height: 1.04;
  }
  .hero-photo img {
    aspect-ratio: 1.95/1;
  }
  .hero-photo {
    border-radius: 22px;
  }
  .challenge-actions {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 24px;
  }
  .challenge-actions .btn {
    font-size: 0.98rem;
    padding: 15px 14px;
  }
  .challenge-benefits {
    padding-top: 16px;
  }
  .benefit {
    padding: 18px 14px;
    gap: 12px;
    font-size: 0.94rem;
    align-items: flex-start;
  }
  .benefit svg {
    width: 32px;
    height: 32px;
  }
  .brand {
    font-size: 1.35rem;
  }
  .links a {
    font-size: 0.79rem;
  }
  .links {
    gap: 4px 12px;
  }
  .lang {
    padding: 8px 12px;
  }
  .sticky-cta {
    display: none;
  }
  body {
    padding-bottom: 0;
  }
  section {
    scroll-margin-top: 158px;
  }
}
@media (max-width: 380px) {
  .container {
    width: calc(100% - 28px);
  }
  .brand {
    font-size: 1.17rem;
  }
  .hero h1 {
    font-size: 2.45rem;
  }
  .links {
    gap: 4px 8px;
  }
  .links a {
    font-size: 0.72rem;
  }
  .benefit {
    flex-direction: column;
    font-size: 0.9rem;
  }
}
.links .shop-link {
  padding: 7px 10px;
  border: 1px solid #4fc28a;
  border-radius: 10px;
  background: #236c45;
  color: #fff;
  font-weight: 850;
}
.links .shop-link:hover,
.links .shop-link:focus-visible {
  background: #2c8053;
  border-color: #71dfa7;
  color: #fff;
}
.shop-link[hidden] {
  display: none !important;
}
/* Understated contact line in the homepage footer only. */
.footer-advisor {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 18px;
  margin: 20px 0 0;
  padding: 17px 0 0;
  border-top: 1px solid var(--line);
  font-style: normal;
  font-size: 0.8rem;
  line-height: 1.7;
  color: #9bb6a8;
}
.footer-advisor strong {
  font-weight: 750;
  color: #e4f3ea;
}
.footer-advisor a {
  color: #a9d4bc;
  text-decoration: none;
  text-underline-offset: 3px;
}
.footer-advisor a:hover,
.footer-advisor a:focus-visible {
  color: var(--green);
  text-decoration: underline;
}
@media (max-width: 700px) {
  .footer-advisor {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-top: 15px;
  }
}