:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #15171d;
  --muted: #5f6673;
  --line: #dde2ea;
  --brand: #111827;
  --accent: #16a34a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.65;
}

a {
  color: var(--brand);
}

.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.topbar__inner,
.page,
.footer__inner {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar__inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand__mark {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-weight: 900;
}

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

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

.page {
  padding: 42px 0 56px;
}

.document {
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.1;
}

.updated {
  margin: 0 0 30px;
  color: var(--muted);
  font-size: 14px;
}

h2 {
  margin: 30px 0 10px;
  font-size: 22px;
  line-height: 1.25;
}

p,
li {
  color: var(--muted);
}

ul {
  padding-left: 22px;
}

.notice {
  margin: 26px 0;
  padding: 18px;
  border-left: 4px solid var(--accent);
  background: #f0fdf4;
  color: #166534;
}

.footer {
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.footer a {
  color: var(--muted);
}

@media (max-width: 720px) {
  .topbar__inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .document {
    padding: 26px 20px;
  }
}

/* Landing page */
.challenge-page {
  margin: 0;
  background: #050505;
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.35;
}

.challenge-page * {
  box-sizing: border-box;
}

.challenge-wrap {
  width: min(1040px, calc(100% - 30px));
  margin: 0 auto;
  text-align: center;
}

.challenge-hero {
  padding: 38px 0 72px;
  background:
    radial-gradient(circle at 50% 17%, rgba(255, 136, 0, 0.34), transparent 26%),
    radial-gradient(circle at 50% 68%, rgba(255, 198, 0, 0.14), transparent 24%),
    #050505;
}

.challenge-audience {
  max-width: 940px;
  margin: 0 auto 28px;
  color: #fff;
  font-size: clamp(24px, 4.6vw, 48px);
  font-weight: 900;
  line-height: 1.05;
}

.challenge-countdown {
  max-width: 720px;
  margin: 0 auto 28px;
}

.challenge-countdown h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 900;
  line-height: 1.08;
}

.challenge-countdown__numbers {
  margin: 16px auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.challenge-countdown__numbers span {
  min-height: 92px;
  display: grid;
  place-items: center;
  padding: 10px 6px;
  border: 2px solid #ff7a00;
  border-radius: 8px;
  background: #101010;
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
}

.challenge-countdown__numbers strong {
  color: #ffb000;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 0.95;
}

.challenge-logo {
  width: min(520px, 92%);
  height: auto;
  display: block;
  margin: 20px auto 22px;
  filter: drop-shadow(0 28px 38px rgba(255, 102, 0, 0.28));
}

.challenge-hero h1 {
  max-width: 1000px;
  margin: 0 auto;
  color: #fff;
  font-size: clamp(34px, 6.8vw, 78px);
  font-weight: 900;
  line-height: 0.98;
}

.challenge-subtitle {
  max-width: 920px;
  margin: 20px auto 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(20px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.15;
}

.challenge-info {
  margin: 30px auto 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.challenge-info h3 {
  min-height: 86px;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 16px;
  border: 2px solid rgba(255, 122, 0, 0.7);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: clamp(18px, 2.6vw, 28px);
  font-weight: 900;
}

.challenge-cta {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  border-radius: 8px;
  background: linear-gradient(180deg, #ffc400 0%, #ff7900 100%);
  color: #101010;
  font-size: 18px;
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
  box-shadow: 0 18px 35px rgba(255, 122, 0, 0.3);
}

.challenge-section {
  padding: 72px 0;
}

.challenge-section--orange {
  background: linear-gradient(180deg, #ff7a00 0%, #d84c00 100%);
}

.challenge-section--dark {
  background: #111;
}

.challenge-section--black {
  background: #050505;
}

.challenge-section--light {
  background: #f8f8f8;
  color: #101010;
}

.challenge-section--offer {
  background:
    radial-gradient(circle at 50% 10%, rgba(255, 176, 0, 0.22), transparent 28%),
    #050505;
}

.challenge-section--final {
  background:
    linear-gradient(180deg, rgba(255, 122, 0, 0.28), rgba(5, 5, 5, 0.96)),
    #050505;
}

.challenge-section h2 {
  max-width: 980px;
  margin: 0 auto 26px;
  color: inherit;
  font-size: clamp(32px, 5.8vw, 66px);
  font-weight: 900;
  line-height: 1.02;
}

.challenge-targets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.challenge-targets h3 {
  min-height: 126px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 22px;
  border: 2px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.18);
  color: #fff;
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 900;
  line-height: 1.08;
}

.challenge-copy h2 {
  margin-bottom: 24px;
}

.challenge-comparison {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.challenge-comparison article {
  padding: 28px;
  border: 2px solid #ff7a00;
  border-radius: 8px;
  background: #121212;
}

.challenge-comparison span {
  display: block;
  margin-bottom: 14px;
  color: #ffb000;
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 900;
}

.challenge-comparison p,
.challenge-pillars p,
.challenge-faq p,
.challenge-safe {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
}

.challenge-pillars {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.challenge-pillars article {
  padding: 24px;
  border-radius: 8px;
  background: #050505;
  color: #fff;
}

.challenge-pillars img {
  width: min(230px, 90%);
  height: auto;
  display: block;
  margin: 0 auto 18px;
}

.challenge-pillars h2 {
  margin-bottom: 12px;
  color: #ffb000;
  font-size: clamp(26px, 3.6vw, 40px);
}

.challenge-pillars h3 {
  margin: 0 0 12px;
  color: #fff;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.05;
}

.challenge-list-section h2,
.challenge-faq h2 {
  color: #101010;
}

.challenge-list-section ul,
.challenge-two-columns ul,
.challenge-included {
  width: min(880px, 100%);
  margin: 30px auto;
  padding: 0;
  list-style: none;
  text-align: left;
}

.challenge-list-section li,
.challenge-two-columns li,
.challenge-included li {
  position: relative;
  padding: 16px 0 16px 38px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.14);
  color: inherit;
  font-size: clamp(19px, 2.8vw, 28px);
  font-weight: 900;
}

.challenge-list-section li::before,
.challenge-two-columns li::before,
.challenge-included li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ff7a00;
}

.challenge-two-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.challenge-two-columns h2 {
  color: #fff;
  font-size: clamp(30px, 4.8vw, 54px);
}

.challenge-two-columns li {
  border-bottom-color: rgba(255, 255, 255, 0.16);
}

.challenge-logo--offer {
  margin-top: 0;
}

.challenge-info--offer {
  max-width: 940px;
}

.challenge-included {
  color: #fff;
}

.challenge-included li {
  border-bottom-color: rgba(255, 255, 255, 0.18);
}

.challenge-price {
  margin: 34px auto 20px !important;
  color: #ffb000 !important;
  font-size: clamp(62px, 10vw, 118px) !important;
}

.challenge-cta--big {
  min-height: 68px;
  padding: 0 34px;
  font-size: clamp(18px, 2.4vw, 24px);
}

.challenge-safe {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.82);
  text-transform: lowercase;
}

.challenge-faq {
  text-align: left;
}

.challenge-faq h2 {
  text-align: center;
}

.challenge-faq h3 {
  margin: 28px 0 8px;
  color: #101010;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 900;
}

.challenge-faq p {
  color: #2f2f2f;
}

.challenge-footer {
  padding: 34px 18px 42px;
  background: #050505;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  text-align: center;
}

.challenge-footer p {
  margin: 8px 0;
}

.challenge-footer a {
  display: inline-block;
  margin: 5px 8px;
  color: rgba(255, 255, 255, 0.76);
}

@media (max-width: 860px) {
  .challenge-info,
  .challenge-targets,
  .challenge-comparison,
  .challenge-pillars,
  .challenge-two-columns {
    grid-template-columns: 1fr;
  }

  .challenge-section {
    padding: 56px 0;
  }
}

@media (max-width: 560px) {
  .challenge-countdown__numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 7px;
  }

  .challenge-countdown__numbers span {
    min-height: 70px;
    font-size: 10px;
  }

  .challenge-cta {
    width: 100%;
    padding: 0 14px;
    font-size: 14px;
    text-align: center;
  }

  .challenge-targets h3 {
    min-height: auto;
  }
}