:root {
  --paper: #f5f3ed;
  --paper-deep: #ece9df;
  --white: #ffffff;
  --navy: #10243b;
  --navy-deep: #0a1a2d;
  --ink: #172536;
  --body: #4e5c69;
  --muted: #72808c;
  --green: #2d6759;
  --green-dark: #245447;
  --green-pale: #e8f1ed;
  --line: #dce1df;
  --shadow: 0 24px 60px rgba(16, 36, 59, 0.12);
}

.concept-page {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.concept-page a {
  color: inherit;
}

.concept-page :focus-visible {
  outline: 3px solid rgba(45, 103, 89, 0.38);
  outline-offset: 4px;
}

.concept-page .skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  border-radius: 6px;
  color: var(--white);
  background: var(--navy-deep);
  text-decoration: none;
  white-space: nowrap;
}

.concept-page .skip-link:focus {
  width: auto;
  height: auto;
  padding: 10px 14px;
  margin: 0;
  overflow: visible;
  clip: auto;
  clip-path: none;
}

.concept-page .container {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.concept-page .site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 0;
  border-bottom: 1px solid rgba(16, 36, 59, 0.09);
  background: rgba(245, 243, 237, 0.92);
  backdrop-filter: blur(16px);
}

.concept-page .nav-wrap {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.concept-page .brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  color: var(--navy);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.concept-page .brand-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  padding: 9px;
  border-radius: 50%;
  background: var(--green);
}

.concept-page .brand-mark span {
  display: block;
  width: 3px;
  border-radius: 999px;
  background: var(--white);
}

.concept-page .brand-mark span:nth-child(1) { height: 8px; }
.concept-page .brand-mark span:nth-child(2) { height: 13px; }
.concept-page .brand-mark span:nth-child(3) { height: 10px; }

.concept-page .site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--body);
  font-size: 0.86rem;
  font-weight: 650;
}

.concept-page .site-nav a {
  text-decoration: none;
}

.concept-page .site-nav a:hover {
  color: var(--green);
}

.concept-page .page-name {
  padding: 7px 11px;
  border: 1px solid rgba(45, 103, 89, 0.14);
  border-radius: 99px;
  color: var(--green-dark);
  background: var(--green-pale);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.concept-page main {
  display: block;
}

.concept-page #main-content,
.concept-page #signup,
.concept-page #plan,
.concept-page #venue-signup {
  scroll-margin-top: 74px;
}

.concept-page section {
  padding: 96px 0;
}

.concept-page .hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 118px;
  border-bottom: 1px solid rgba(16, 36, 59, 0.06);
  background: var(--paper);
  text-align: left;
}

.concept-page .hero::after {
  position: absolute;
  z-index: 0;
  top: -430px;
  right: -260px;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(45, 103, 89, 0.13);
  border-radius: 50%;
  background: rgba(232, 241, 237, 0.34);
  box-shadow: 0 0 0 100px rgba(45, 103, 89, 0.024), 0 0 0 200px rgba(45, 103, 89, 0.014);
  content: "";
  pointer-events: none;
}

.concept-page .hero > .container {
  position: relative;
  z-index: 1;
}

.concept-page .eyebrow {
  display: block;
  margin: 0 0 20px;
  color: var(--green);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.concept-page h1,
.concept-page h2,
.concept-page h3 {
  color: var(--navy);
  letter-spacing: -0.04em;
}

.concept-page h1 {
  max-width: 900px;
  margin: 0 0 27px;
  font-size: clamp(3.15rem, 6vw, 5.35rem);
  font-weight: 650;
  line-height: 1.04;
}

.concept-page h2,
.concept-page .section-heading h2,
.concept-page .signup h2,
.concept-page .venue h2 {
  margin: 0 0 18px;
  color: var(--navy);
  font-size: clamp(2.2rem, 4vw, 3.7rem);
  font-weight: 650;
  line-height: 1.1;
}

.concept-page h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.2;
}

.concept-page .hero > .container > p,
.concept-page .hero-text {
  max-width: 720px;
  margin: 0 0 34px;
  color: var(--body);
  font-size: 1.14rem;
  line-height: 1.72;
}

.concept-page .button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--white);
  background: var(--green);
  box-shadow: 0 12px 26px rgba(45, 103, 89, 0.18);
  font: inherit;
  font-size: 0.91rem;
  font-weight: 690;
  line-height: 1;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.concept-page .button:hover {
  background: var(--green-dark);
  box-shadow: 0 16px 30px rgba(45, 103, 89, 0.23);
  transform: translateY(-2px);
}

.concept-page .soft,
.concept-page .dark-section,
.concept-page .signup {
  background: var(--paper-deep);
}

.concept-page .content {
  max-width: 780px;
  margin: 0 auto;
}

.concept-page .content p,
.concept-page .section-heading p,
.concept-page .signup > .container > p,
.concept-page .venue p {
  color: var(--body);
  font-size: 1.04rem;
  line-height: 1.72;
}

.concept-page .content p {
  margin: 0 0 17px;
}

.concept-page .features,
.concept-page .audience,
.concept-page .questions,
.concept-page .options,
.concept-page .plan-factors {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: none;
  margin: 48px 0 0;
}

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

.concept-page .feature,
.concept-page .audience-card,
.concept-page .question-card,
.concept-page .option,
.concept-page .plan-factor {
  padding: 29px;
  border: 1px solid rgba(16, 36, 59, 0.09);
  border-radius: 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.76);
}

.concept-page .feature-number {
  margin-bottom: 38px;
  color: var(--green);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.concept-page .feature p,
.concept-page .audience-card p,
.concept-page .question-card span,
.concept-page .option span,
.concept-page .plan-factor p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.concept-page .option strong,
.concept-page .plan-factor strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
}

.concept-page .section-heading {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}

.concept-page .example,
.concept-page .venue {
  max-width: 780px;
  margin: 46px auto 0;
  padding: 34px;
  border: 1px solid rgba(16, 36, 59, 0.09);
  border-radius: 11px;
  background: var(--white);
  box-shadow: 0 18px 40px rgba(16, 36, 59, 0.07);
}

.concept-page .example-label,
.concept-page .result-label,
.concept-page .investigation-title {
  color: var(--green);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.concept-page .result {
  padding: 20px;
  border-radius: 8px;
  background: var(--green-pale);
}

.concept-page .result p {
  margin: 0;
  color: var(--body);
}

.concept-page .investigation {
  max-width: 900px;
  margin: 62px 0 0;
  padding: 31px;
  border-radius: 12px;
  color: #edf2f4;
  background: var(--navy-deep);
  box-shadow: var(--shadow);
}

.concept-page .investigation-title,
.concept-page .investigation .status,
.concept-page .investigation .result-label {
  color: #9dc8bb;
}

.concept-page .investigation-result {
  background: rgba(255, 255, 255, 0.08);
}

.concept-page .investigation .result-title {
  color: var(--white);
}

.concept-page .investigation .result-text {
  color: #c0cad0;
}

.concept-page .signup {
  text-align: center;
}

.concept-page .concept-action {
  max-width: 700px;
  margin: 34px auto 0;
  padding: 34px;
  border: 1px solid rgba(45, 103, 89, 0.15);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.78);
}

.concept-page .concept-action strong {
  display: block;
  margin-bottom: 7px;
  color: var(--navy);
  font-size: 1.08rem;
}

.concept-page .concept-action p {
  margin: 0 auto 22px;
  color: var(--body);
}

.concept-page .site-footer {
  padding: 37px 0;
  border: 0;
  color: #9ba8b1;
  background: var(--navy-deep);
  text-align: left;
}

.concept-page .footer-wrap {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.concept-page .brand-footer {
  color: var(--white);
}

.concept-page .brand-footer .brand-mark {
  width: 30px;
  height: 30px;
  padding: 8px;
}

.concept-page .site-footer p {
  margin: 0;
  font-size: 0.78rem;
}

.concept-page .copyright {
  justify-self: end;
}

@media (max-width: 850px) {
  .concept-page .features,
  .concept-page .audience,
  .concept-page .options,
  .concept-page .plan-factors {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .concept-page .footer-wrap {
    grid-template-columns: 1fr;
  }

  .concept-page .copyright {
    justify-self: start;
  }
}

@media (max-width: 650px) {
  .concept-page .container {
    width: min(100% - 32px, 1180px);
  }

  .concept-page .nav-wrap {
    min-height: 68px;
  }

  .concept-page .site-nav > a {
    display: none;
  }

  .concept-page .page-name {
    max-width: 145px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .concept-page .hero {
    padding: 76px 0 84px;
  }

  .concept-page h1 {
    font-size: clamp(2.65rem, 13vw, 4.1rem);
  }

  .concept-page h2,
  .concept-page .section-heading h2,
  .concept-page .signup h2,
  .concept-page .venue h2 {
    font-size: clamp(2rem, 9vw, 3rem);
  }

  .concept-page section {
    padding: 76px 0;
  }

  .concept-page .features,
  .concept-page .audience,
  .concept-page .questions,
  .concept-page .options,
  .concept-page .plan-factors {
    grid-template-columns: 1fr;
  }

  .concept-page .example,
  .concept-page .venue,
  .concept-page .concept-action,
  .concept-page .investigation {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .concept-page .button {
    transition: none;
  }
}