.rs-landing {
  --rs-ink: #10201c;
  --rs-muted: #60716c;
  --rs-line: #d8e8e1;
  --rs-mist: #effaf6;
  --rs-mint: #dff7ef;
  --rs-aqua: #50d6c3;
  --rs-green: #0f7d63;
  --rs-green-dark: #075642;
  --rs-lime: #c9f36a;
  --rs-shadow: 0 26px 80px rgba(7, 86, 66, 0.14);
  color: var(--rs-ink);
  font-family: "Inter", Arial, sans-serif;
  background: radial-gradient(circle at 50% 0%, rgba(80, 214, 195, 0.28), transparent 34rem), linear-gradient(180deg, #f7fffb 0%, #ffffff 22rem);
}

.rs-landing * { box-sizing: border-box; }
.rs-landing a { color: inherit; text-decoration: none; }
.rs-landing h1, .rs-landing h2, .rs-landing h3, .rs-landing p { margin-top: 0; }

.rs-site-header {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(1120px, calc(100% - 32px));
  min-height: 64px;
  margin: 14px auto 0;
  padding: 10px 12px;
  border: 1px solid rgba(216, 232, 225, 0.86);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 16px 44px rgba(16, 32, 28, 0.08);
  backdrop-filter: blur(18px);
}

.rs-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-left: 8px;
  font-weight: 900;
  white-space: nowrap;
}

.rs-brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--rs-green), var(--rs-aqua));
  font-size: .78rem;
}

.rs-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #45635a;
  font-size: .92rem;
  font-weight: 700;
}

.rs-nav a {
  padding: 10px 12px;
  border-radius: 999px;
}

.rs-nav a:hover {
  background: var(--rs-mist);
  color: var(--rs-green-dark);
}

.rs-header-cta {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  color: #fff;
  background: var(--rs-green-dark);
  font-size: .92rem;
  font-weight: 800;
  white-space: nowrap;
}

.rs-hero {
  display: grid;
  justify-items: center;
  gap: 42px;
  padding: clamp(58px, 8vw, 92px) clamp(18px, 5vw, 64px) clamp(54px, 7vw, 90px);
  text-align: center;
}

.rs-hero-copy { width: min(100%, 980px); }

.rs-eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  margin: 0 0 18px;
  padding: 0 14px;
  border: 1px solid rgba(15, 125, 99, .18);
  border-radius: 999px;
  color: var(--rs-green-dark);
  background: rgba(223, 247, 239, .72);
  font-size: .76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.rs-landing h1 {
  max-width: 980px;
  margin: 0 auto 24px;
  font-size: clamp(3rem, 7vw, 6.9rem);
  line-height: .94;
  letter-spacing: 0;
}

.rs-landing h2 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4.5vw, 4.55rem);
  line-height: 1;
  letter-spacing: 0;
}

.rs-landing h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.25;
}

.rs-lead {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
  color: #435750;
  font-size: clamp(1.05rem, 1.6vw, 1.32rem);
  line-height: 1.7;
}

.rs-hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.rs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.rs-btn:hover { transform: translateY(-1px); }

.rs-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--rs-green-dark), var(--rs-green));
  box-shadow: 0 18px 38px rgba(7, 86, 66, .22);
}

.rs-secondary {
  color: var(--rs-green-dark);
  background: #fff;
  border: 1px solid var(--rs-line);
}

.rs-trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

.rs-trust-row span {
  padding: 9px 13px;
  border: 1px solid rgba(15, 125, 99, .14);
  border-radius: 999px;
  background: rgba(255, 255, 255, .76);
  color: #45635a;
  font-size: .88rem;
  font-weight: 800;
}

.rs-course-preview {
  width: min(1120px, 100%);
  overflow: hidden;
  border: 1px solid rgba(216, 232, 225, .9);
  border-radius: 28px;
  background: rgba(255, 255, 255, .84);
  box-shadow: var(--rs-shadow);
  text-align: left;
}

.rs-preview-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 20px;
  border-bottom: 1px solid var(--rs-line);
  background: rgba(247, 255, 251, .72);
}

.rs-preview-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #b5d3c9;
}

.rs-preview-topbar strong {
  margin-left: 8px;
  color: #45635a;
  font-size: .9rem;
}

.rs-preview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
  padding: 18px;
}

.rs-video-frame {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(7, 86, 66, .9), rgba(80, 214, 195, .34)), url("https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?auto=format&fit=crop&w=1600&q=82") center/cover;
}

.rs-video-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(7, 48, 39, .88) 100%);
}

.rs-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 18px 44px rgba(0, 0, 0, .18);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.rs-play-button span {
  width: 0;
  height: 0;
  margin-left: 5px;
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  border-left: 20px solid var(--rs-green);
}

.rs-video-caption {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  z-index: 2;
  color: #fff;
}

.rs-video-caption strong {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--rs-green-dark);
  background: var(--rs-lime);
  font-size: .8rem;
  font-weight: 900;
}

.rs-video-caption p {
  max-width: 520px;
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 3.2rem);
  font-weight: 900;
  line-height: 1.02;
}

.rs-lesson-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.rs-lesson {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  min-height: 82px;
  padding: 14px;
  border: 1px solid var(--rs-line);
  border-radius: 18px;
  background: #fff;
}

.rs-lesson.rs-active {
  border-color: rgba(15, 125, 99, .32);
  background: var(--rs-mist);
}

.rs-lesson span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--rs-green-dark);
  background: var(--rs-mint);
  font-size: .82rem;
  font-weight: 900;
}

.rs-lesson p {
  margin: 0;
  color: #294039;
  font-weight: 800;
  line-height: 1.35;
}

.rs-preview-footer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rs-line);
  border-top: 1px solid var(--rs-line);
}

.rs-preview-footer div {
  padding: 22px;
  background: rgba(247, 255, 251, .9);
}

.rs-preview-footer strong,
.rs-preview-footer span {
  display: block;
}

.rs-preview-footer strong {
  margin-bottom: 6px;
  font-size: 1.15rem;
}

.rs-preview-footer span {
  color: var(--rs-muted);
  line-height: 1.45;
}

.rs-audience-band {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 12px;
  border: 1px solid var(--rs-line);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(7, 86, 66, .08);
}

.rs-audience-band a {
  padding: 13px 16px;
  border-radius: 999px;
  color: #36534b;
  background: var(--rs-mist);
  font-weight: 800;
}

.rs-section {
  padding: clamp(76px, 9vw, 132px) clamp(18px, 5vw, 64px);
}

.rs-section-heading {
  max-width: 870px;
  margin-bottom: 34px;
}

.rs-section-heading.rs-centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.rs-section-heading > p:not(.rs-eyebrow) {
  max-width: 740px;
  margin: 20px auto 0;
  color: var(--rs-muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

.rs-intro-section { padding-bottom: clamp(46px, 6vw, 80px); }
.rs-cards-section { background: linear-gradient(180deg, #fff 0%, var(--rs-mist) 100%); }

.rs-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.rs-feature-card {
  min-height: 282px;
  padding: 26px;
  border: 1px solid rgba(216, 232, 225, .92);
  border-radius: 24px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 16px 44px rgba(7, 86, 66, .06);
}

.rs-feature-card p,
.rs-process-grid p,
.rs-community-copy p,
.rs-checkout-copy p,
.rs-faq-list p,
.rs-price-box li,
.rs-price-box small {
  color: var(--rs-muted);
  line-height: 1.65;
}

.rs-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 48px;
  border-radius: 50%;
  color: var(--rs-green-dark);
  background: var(--rs-mint);
  font-size: .78rem;
  font-weight: 900;
}

.rs-process-section { background: #fff; }

.rs-process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  width: min(980px, 100%);
  margin: 0 auto;
}

.rs-process-grid div {
  padding: 28px;
  border-radius: 24px;
  background: var(--rs-mist);
}

.rs-process-grid span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 46px;
  border-radius: 50%;
  color: #fff;
  background: var(--rs-green);
  font-weight: 900;
}

.rs-community-section {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: clamp(34px, 6vw, 84px);
  align-items: center;
  color: #fff;
  background: radial-gradient(circle at 85% 12%, rgba(80, 214, 195, .28), transparent 26rem), linear-gradient(135deg, #073d30, #0d6f57);
}

.rs-community-section .rs-eyebrow {
  border-color: rgba(255, 255, 255, .18);
  color: #fff;
  background: rgba(255, 255, 255, .12);
}

.rs-community-copy p { max-width: 680px; color: rgba(255, 255, 255, .76); }

.rs-community-panel {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 28px;
  background: rgba(255, 255, 255, .09);
  box-shadow: 0 26px 80px rgba(0, 0, 0, .16);
}

.rs-message {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .12);
}

.rs-message.rs-reply {
  margin-left: clamp(0px, 5vw, 66px);
  background: #fff;
  color: var(--rs-ink);
}

.rs-message span {
  display: block;
  margin-bottom: 8px;
  color: var(--rs-lime);
  font-size: .76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.rs-message.rs-reply span { color: var(--rs-green); }
.rs-message p { margin: 0; line-height: 1.6; }

.rs-checkout-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(310px, 430px);
  gap: clamp(32px, 7vw, 100px);
  align-items: center;
  background: linear-gradient(180deg, #fff 0%, var(--rs-mint) 100%);
}

.rs-checkout-copy { max-width: 760px; }

.rs-price-box {
  padding: 30px;
  border: 1px solid rgba(216, 232, 225, .95);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--rs-shadow);
}

.rs-badge {
  display: inline-flex;
  margin-bottom: 20px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--rs-green-dark);
  background: var(--rs-mint);
  font-size: .8rem;
  font-weight: 900;
}

.rs-price {
  margin: 4px 0 18px;
  font-size: 2.35rem;
  font-weight: 900;
}

.rs-price-box ul {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.rs-price-box li {
  position: relative;
  padding-left: 24px;
}

.rs-price-box li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--rs-green);
}

.rs-full { width: 100%; }
.rs-price-box small { display: block; margin-top: 14px; text-align: center; }
.rs-faq-section { background: #fff; }

.rs-faq-list {
  display: grid;
  gap: 10px;
  max-width: 920px;
  margin: 0 auto;
}

.rs-faq-list details {
  border: 1px solid var(--rs-line);
  border-radius: 20px;
  background: #fff;
}

.rs-faq-list summary {
  padding: 22px;
  font-weight: 900;
  cursor: pointer;
}

.rs-faq-list details p {
  margin: 0;
  padding: 0 22px 22px;
}

.rs-site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 5vw, 64px);
  border-top: 1px solid var(--rs-line);
  color: #45635a;
  font-size: .92rem;
}

.rs-site-footer span {
  font-weight: 900;
  color: var(--rs-ink);
}

.rs-site-footer div {
  display: flex;
  gap: 18px;
}

@media (max-width: 1060px) {
  .rs-preview-grid,
  .rs-community-section,
  .rs-checkout-section {
    grid-template-columns: 1fr;
  }

  .rs-lesson-list { grid-template-columns: repeat(2, 1fr); }
  .rs-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .rs-preview-footer, .rs-process-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .rs-site-header {
    position: static;
    align-items: stretch;
    flex-direction: column;
    border-radius: 24px;
  }

  .rs-brand {
    justify-content: center;
    padding-left: 0;
  }

  .rs-nav {
    justify-content: center;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .rs-header-cta { justify-content: center; }

  .rs-landing h1 { font-size: clamp(2.55rem, 13vw, 4rem); }
  .rs-landing h2 { font-size: clamp(2rem, 9vw, 3.15rem); }
  .rs-hero-actions, .rs-btn { width: 100%; }
  .rs-course-preview { border-radius: 22px; }
  .rs-preview-grid { padding: 12px; }
  .rs-video-frame { min-height: 330px; }
  .rs-lesson-list, .rs-feature-grid { grid-template-columns: 1fr; }
  .rs-feature-card { min-height: auto; }
  .rs-icon, .rs-process-grid span { margin-bottom: 28px; }
  .rs-message.rs-reply { margin-left: 0; }
  .rs-site-footer { flex-direction: column; }
}