:root {
  --ink: #111827;
  --muted: #5b6472;
  --paper: #f6f5ef;
  --panel: #ffffff;
  --line: #d8d5ca;
  --green: #1f7a5c;
  --gold: #c2922e;
  --blue: #2468a2;
  --red: #b2483e;
  --shadow: 0 24px 70px rgba(17, 24, 39, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(246, 245, 239, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand,
.site-nav,
.hero-actions,
.signup-row,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  min-width: 220px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: #fff;
  background: var(--ink);
  border-radius: 7px;
  font-size: 0.82rem;
  letter-spacing: 0;
}

.site-nav {
  gap: 20px;
  color: #354152;
  font-size: 0.95rem;
}

.site-nav a,
.site-footer a {
  text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover {
  text-decoration: underline;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  gap: clamp(32px, 6vw, 84px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(54px, 8vw, 112px) clamp(20px, 5vw, 72px) clamp(42px, 6vw, 80px);
  background:
    linear-gradient(120deg, rgba(31, 122, 92, 0.12), transparent 28%),
    linear-gradient(310deg, rgba(36, 104, 162, 0.16), transparent 34%),
    var(--paper);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 7.2vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 720px;
  margin-bottom: 28px;
  color: #354152;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: var(--ink);
}

.button.secondary {
  color: var(--ink);
  background: transparent;
}

.helper {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.system-board {
  border: 1px solid rgba(17, 24, 39, 0.18);
  border-radius: 8px;
  background: #101820;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.board-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  color: #dce6ea;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.board-top span {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--red);
}

.board-top span:nth-child(2) {
  background: var(--gold);
}

.board-top span:nth-child(3) {
  background: var(--green);
}

.board-top strong {
  margin-left: 8px;
  font-size: 0.88rem;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.12);
}

.board-grid article {
  min-height: 170px;
  padding: 22px;
  background: #16222c;
}

.board-grid small {
  color: #82d8be;
  font-weight: 900;
}

.board-grid h2 {
  margin: 12px 0 8px;
  color: #fff;
  font-size: 1.15rem;
}

.board-grid p {
  margin: 0;
  color: #b8c6cc;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink);
  color: #fff;
}

.trust-strip span {
  min-height: 86px;
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #17202b;
  font-weight: 800;
}

.section,
.checklist-band,
.youtube-section,
.legal-page {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 790px;
  margin-bottom: 34px;
}

.section-heading h2,
.checklist-band h2,
.youtube-section h2,
.legal-page h1 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  letter-spacing: 0;
}

.section-heading p,
.checklist-band p,
.youtube-section p,
.legal-page p {
  color: #354152;
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature-grid h3 {
  margin-bottom: 10px;
  font-size: 1.24rem;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
}

.checklist-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 28px;
  align-items: center;
  background: #e8ece2;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signup {
  padding: 24px;
  border: 1px solid #cbd2c1;
  border-radius: 8px;
  background: #fff;
}

.signup label {
  display: block;
  margin-bottom: 10px;
  color: #354152;
  font-weight: 800;
}

.signup-row {
  gap: 8px;
}

.signup input {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid #cbd2c1;
  border-radius: 7px;
  color: #596372;
  background: #f5f6f2;
  font: inherit;
}

.signup button {
  min-height: 46px;
  padding: 0 14px;
  border: 0;
  border-radius: 7px;
  color: #fff;
  background: var(--green);
  font-weight: 800;
  white-space: nowrap;
}

.signup :disabled {
  cursor: not-allowed;
}

.signup p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.youtube-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.youtube-section > div {
  max-width: 760px;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px 28px;
  align-items: center;
  padding: 28px clamp(20px, 5vw, 72px);
  color: #d5dbe2;
  background: var(--ink);
}

.site-footer p,
.site-footer small {
  margin: 0;
}

.site-footer nav {
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer small {
  grid-column: 1 / -1;
  color: #9da7b5;
}

.legal-page {
  max-width: 900px;
  min-height: 62vh;
}

.resource-page {
  padding: clamp(46px, 7vw, 84px) clamp(20px, 5vw, 72px);
}

.resource-hero {
  max-width: 920px;
  margin-bottom: 32px;
}

.resource-hero h1 {
  margin-bottom: 18px;
}

.resource-hero p {
  max-width: 760px;
  color: #354152;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.resource-rule {
  max-width: 920px;
  margin-bottom: 24px;
  padding: 20px 22px;
  border-left: 5px solid var(--green);
  background: #fff;
}

.resource-rule strong {
  display: block;
  margin-bottom: 6px;
}

.resource-rule p {
  margin: 0;
  color: #354152;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.checklist-grid article {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.checklist-grid span {
  color: var(--green);
  font-weight: 900;
}

.checklist-grid h2 {
  margin: 10px 0 10px;
  font-size: 1.28rem;
}

.checklist-grid p,
.checklist-grid li {
  color: #354152;
}

.checklist-grid ul {
  margin: 14px 0 0;
  padding-left: 20px;
}

.scorecard-section {
  max-width: 900px;
  margin-top: 34px;
}

.scorecard-section h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.scorecard {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.scorecard div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 0.45fr);
  gap: 16px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.scorecard div:first-child {
  border-top: 0;
}

.scorecard span {
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero,
  .checklist-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .checklist-grid {
    grid-template-columns: 1fr;
  }

  .trust-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-header,
  .youtube-section,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header,
  .site-nav,
  .brand {
    width: 100%;
  }

  .site-nav {
    justify-content: space-between;
    gap: 10px;
  }

  .brand {
    min-width: 0;
  }

  h1 {
    font-size: 3.15rem;
  }

  .board-grid,
  .feature-grid,
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .board-grid article {
    min-height: 136px;
  }

  .signup-row {
    align-items: stretch;
    flex-direction: column;
  }

  .scorecard div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: flex;
  }
}