:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --panel: #ffffff;
  --ink: #15171a;
  --muted: #5d6570;
  --line: #dfe3dc;
  --blue: #1264d8;
  --green: #1c7c54;
  --rose: #b6425d;
  --soft-blue: #eef5ff;
  --soft-green: #eef8f2;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(21, 23, 26, 0.08);
  background: rgba(247, 248, 245, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

nav a:hover {
  color: var(--ink);
}

.hero {
  min-height: min(760px, calc(100svh - 64px));
  display: flex;
  align-items: center;
  padding: clamp(44px, 8vw, 104px) clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(247, 248, 245, 0.99) 0%, rgba(247, 248, 245, 0.94) 52%, rgba(247, 248, 245, 0.65) 100%),
    url("assets/listenara-icon.png") right clamp(22px, 9vw, 132px) center / min(42vw, 500px) auto no-repeat,
    var(--bg);
}

.hero-copy {
  width: 100%;
  max-width: 720px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
li,
span,
strong {
  letter-spacing: 0;
  overflow-wrap: break-word;
}

h1 {
  margin: 0;
  font-size: clamp(54px, 10vw, 112px);
  line-height: 0.96;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.06;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.2;
}

.lede {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
}

.hero-note {
  max-width: 560px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 19px);
  font-weight: 650;
}

.actions,
.product-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.actions {
  margin-top: 30px;
}

.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

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

.button.disabled {
  background: #eef0ed;
  border-color: var(--line);
  color: var(--muted);
  cursor: not-allowed;
}

.button:focus-visible,
.agreement input:focus-visible {
  outline: 3px solid rgba(18, 100, 216, 0.28);
  outline-offset: 2px;
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.signal-band div {
  display: grid;
  gap: 4px;
  min-width: 0;
  min-height: 112px;
  padding: 24px clamp(18px, 4vw, 56px);
  border-right: 1px solid var(--line);
}

.signal-band div:last-child {
  border-right: 0;
}

.signal-band strong {
  font-size: 18px;
}

.signal-band span,
.copy,
.section p,
.page p,
.plain-list,
.step-list {
  color: var(--muted);
}

.section,
.page {
  padding: clamp(42px, 7vw, 94px) clamp(18px, 5vw, 72px);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(250px, 0.82fr) minmax(300px, 1.18fr);
  gap: clamp(24px, 5vw, 80px);
  min-width: 0;
  border-bottom: 1px solid var(--line);
}

.two-column > *,
.release-panel > * {
  min-width: 0;
}

.accent-section {
  background: linear-gradient(90deg, var(--soft-green), rgba(247, 248, 245, 0.2));
}

.copy {
  width: 100%;
  max-width: 760px;
  min-width: 0;
  font-size: 18px;
}

.copy p:first-child,
.copy .step-list:first-child {
  margin-top: 0;
}

.step-list {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding-left: 22px;
  font-size: 18px;
}

.step-list strong {
  color: var(--ink);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-grid article {
  min-width: 0;
  min-height: 230px;
  padding: clamp(24px, 4vw, 42px);
  background: var(--bg);
}

.release-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.release-panel div {
  max-width: 780px;
}

.page {
  width: 100%;
  max-width: 960px;
  min-height: calc(100svh - 152px);
}

.page h1 {
  font-size: clamp(44px, 8vw, 82px);
}

.plain-list {
  display: grid;
  gap: 8px;
  margin: 22px 0;
  padding-left: 22px;
  font-size: 18px;
}

.support-box {
  margin-top: 28px;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.support-box h2 {
  font-size: 22px;
  line-height: 1.2;
}

.support-box h2,
.support-box p:last-child,
.support-box .plain-list:last-child {
  margin-bottom: 0;
}

.agreement {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 18px;
  color: var(--ink);
  font-weight: 650;
}

.agreement input {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--blue);
  flex: 0 0 auto;
}

.launch-note {
  color: var(--rose);
  font-weight: 650;
}

.paypal-button-container {
  max-width: 420px;
  min-height: 54px;
  margin-top: 18px;
}

.paypal-button-container[hidden] {
  display: none;
}

.checkout-status {
  min-height: 24px;
  margin: 14px 0 0;
  font-weight: 650;
}

.checkout-status[data-tone="success"] {
  color: var(--green);
}

.checkout-status[data-tone="error"] {
  color: var(--rose);
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  background: rgba(21, 23, 26, 0.07);
  color: var(--ink);
  overflow-wrap: anywhere;
}

.support-box .button {
  margin-top: 6px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding: 22px clamp(18px, 5vw, 72px);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero,
  .two-column,
  .signal-band,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(247, 248, 245, 0.98) 0%, rgba(247, 248, 245, 0.92) 100%),
      url("assets/listenara-icon.png") right -54px top 36px / 220px auto no-repeat,
      var(--bg);
  }

  .signal-band div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature-grid article {
    min-height: auto;
  }

  .release-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  footer {
    flex-direction: column;
  }

  nav {
    gap: 12px;
  }

  .hero {
    padding-top: 34px;
    background:
      linear-gradient(180deg, rgba(247, 248, 245, 0.99) 0%, rgba(247, 248, 245, 0.96) 100%),
      url("assets/listenara-icon.png") right -52px top 46px / 176px auto no-repeat,
      var(--bg);
  }

  h1 {
    font-size: clamp(46px, 16vw, 70px);
  }

  .page h1 {
    font-size: clamp(36px, 10vw, 44px);
  }

  h2 {
    font-size: clamp(28px, 10vw, 42px);
  }

  .hero-copy,
  .copy,
  .two-column > *,
  .release-panel > *,
  .page > p,
  .page > h1,
  .page > .eyebrow,
  .support-box {
    width: 100%;
    max-width: 520px;
  }

  .hero-note {
    max-width: 520px;
  }

  .lede,
  .copy,
  .plain-list,
  .step-list {
    font-size: 17px;
  }

  .actions {
    width: 100%;
  }

  .button {
    max-width: 100%;
  }
}

@media (max-width: 500px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}