:root {
  --bg: #071214;
  --bg-2: #0d2424;
  --paper: #f0eadc;
  --paper-soft: rgba(240, 234, 220, 0.72);
  --ink: #f7f2e8;
  --muted: rgba(247, 242, 232, 0.72);
  --muted-2: rgba(247, 242, 232, 0.54);
  --line: rgba(240, 234, 220, 0.16);
  --line-strong: rgba(240, 234, 220, 0.28);
  --accent: #9ee8c3;
  --accent-2: #5bb7a8;
  --amber: #f2c876;
  --danger: #fb8f75;
  --shadow: 0 36px 100px rgba(0, 0, 0, 0.44);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 16% 8%, rgba(158, 232, 195, 0.20), transparent 28rem),
    radial-gradient(circle at 78% 22%, rgba(91, 183, 168, 0.18), transparent 26rem),
    linear-gradient(135deg, var(--bg) 0%, #0a191c 46%, #0d2722 100%);
  color: var(--ink);
  font-family: Optima, Avenir Next, Segoe UI, ui-sans-serif, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.11;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 10%, black, transparent 72%);
}

main { overflow: hidden; }

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 92vh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
  padding: 72px 0 44px;
}

.brand-mark,
.section-kicker {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-mark span {
  color: var(--paper);
  letter-spacing: 0.18em;
}

h1, h2, h3 {
  font-family: Georgia, 'Iowan Old Style', 'Palatino Linotype', ui-serif, serif;
  font-weight: 650;
  letter-spacing: -0.045em;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(3.2rem, 7vw, 7.8rem);
  line-height: 0.91;
}

.hero__lead {
  max-width: 740px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.32rem);
  line-height: 1.72;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button,
.submit-button {
  appearance: none;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 760;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.submit-button:hover { transform: translateY(-2px); }
.button--primary,
.submit-button {
  background: var(--accent);
  color: #071214;
  border-color: transparent;
}
.button--ghost { background: rgba(240, 234, 220, 0.06); }

.trust-line {
  margin: 22px 0 0;
  color: var(--muted-2);
  font-size: 0.92rem;
  line-height: 1.6;
}

.hero__artifact {
  min-height: 610px;
  position: relative;
  border: 1px solid var(--line);
  border-radius: 44px;
  background:
    linear-gradient(160deg, rgba(240, 234, 220, 0.10), rgba(240, 234, 220, 0.025)),
    radial-gradient(circle at 50% 35%, rgba(158, 232, 195, 0.24), transparent 18rem);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__artifact::before {
  content: '';
  position: absolute;
  inset: 12%;
  border: 1px dashed rgba(240, 234, 220, 0.16);
  border-radius: 50%;
  transform: rotate(-14deg);
}
.orbit {
  position: absolute;
  border: 1px solid rgba(158, 232, 195, 0.24);
  border-radius: 50%;
  transform: rotate(22deg);
}
.orbit--one { inset: 19% 14%; }
.orbit--two { inset: 31% 25%; opacity: 0.72; }

.signal-card {
  position: absolute;
  width: min(78%, 350px);
  padding: 18px 20px;
  border: 1px solid rgba(240, 234, 220, 0.16);
  border-radius: 24px;
  background: rgba(7, 18, 20, 0.62);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 80px rgba(0,0,0,0.28);
}
.signal-card span {
  display: block;
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.signal-card strong { display: block; margin-top: 8px; line-height: 1.35; }
.signal-card--top { top: 14%; left: 10%; }
.signal-card--mid { top: 42%; right: 8%; }
.signal-card--low { left: 13%; bottom: 15%; }

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(60px, 10vw, 120px) 0;
}
.section--narrow { width: min(980px, calc(100% - 40px)); }
.section h2 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4.2rem);
  line-height: 1.02;
}
.section p { color: var(--muted); line-height: 1.72; }

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 34px;
}
.principles > div,
.loop-grid > div,
.signup-form,
.report-card {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(240, 234, 220, 0.065);
  box-shadow: 0 18px 70px rgba(0,0,0,0.18);
}
.principles > div { padding: 24px; }
.principles span,
.loop-grid span {
  color: var(--accent);
  font-weight: 760;
}
.principles strong { display: block; margin-top: 18px; font-size: 1.08rem; }
.principles p { margin-bottom: 0; }

.sample {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: clamp(26px, 5vw, 64px);
  align-items: start;
}
.sample__intro p { font-size: 1.05rem; }
.report-card {
  padding: clamp(24px, 4vw, 42px);
  background:
    linear-gradient(155deg, rgba(240, 234, 220, 0.15), rgba(240, 234, 220, 0.055)),
    rgba(7, 18, 20, 0.5);
}
.report-card__topline {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted-2);
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.report-card h2 { margin-top: 32px; font-size: clamp(2rem, 4vw, 4.6rem); }
.report-lead { font-size: 1.14rem; }
.report-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
}
.report-grid div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(7, 18, 20, 0.36);
}
.report-grid strong { color: var(--accent); }
.report-grid p { margin-bottom: 0; font-size: 0.94rem; }

.loop-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 26px;
}
.loop-grid > div { padding: 24px; }
.loop-grid h3 { margin: 18px 0 0; font-size: 1.35rem; line-height: 1.1; }
.loop-grid p { margin-bottom: 0; font-size: 0.95rem; }

.form-section { padding-top: 24px; padding-bottom: 120px; }
.signup-form {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 52px);
}
.signup-form h2 { margin-bottom: 16px; }
.form-note { max-width: 720px; }
fieldset {
  margin: 30px 0 0;
  padding: 0;
  border: 0;
}
legend,
.field-label {
  display: block;
  margin-bottom: 12px;
  color: var(--paper);
  font-weight: 760;
  font-size: 1.02rem;
}
.field-help {
  margin-top: -4px;
  margin-bottom: 14px;
  color: var(--muted-2);
  font-size: 0.92rem;
}
.choice-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.choice-list--two { grid-template-columns: repeat(2, 1fr); }
.choice {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  min-height: 52px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(7, 18, 20, 0.33);
  color: var(--muted);
  line-height: 1.45;
}
.choice input { margin-top: 3px; accent-color: var(--accent); }
.choice:has(input:checked) {
  border-color: rgba(158, 232, 195, 0.72);
  background: rgba(158, 232, 195, 0.10);
  color: var(--paper);
}
textarea,
input[type='text'] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(7, 18, 20, 0.38);
  color: var(--paper);
  font: inherit;
  line-height: 1.5;
  padding: 15px 16px;
  outline: none;
}
textarea:focus,
input[type='text']:focus { border-color: rgba(158, 232, 195, 0.76); }
textarea::placeholder,
input::placeholder { color: rgba(247, 242, 232, 0.38); }
.choice--contact { margin-top: 28px; }
.consent { margin-top: 20px; }
.submit-button { margin-top: 26px; min-width: 210px; }

.thanks {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px;
}
.thanks > div {
  width: min(720px, 100%);
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 36px;
  background: rgba(240, 234, 220, 0.07);
  box-shadow: var(--shadow);
}
.thanks h1 { font-size: clamp(2.6rem, 7vw, 5.8rem); }
.thanks p:not(.brand-mark) { color: var(--muted); line-height: 1.7; }

@media (max-width: 920px) {
  .hero,
  .sample { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 48px; }
  .hero__artifact { min-height: 460px; }
  .principles,
  .report-grid,
  .loop-grid { grid-template-columns: 1fr; }
  .choice-list,
  .choice-list--two { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .hero,
  .section { width: min(100% - 28px, 1180px); }
  h1 { font-size: clamp(3rem, 16vw, 4.7rem); }
  .hero__actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .report-card__topline { flex-direction: column; }
  .hero__artifact { min-height: 390px; border-radius: 30px; }
  .signal-card { width: 84%; }
}