:root {
  --ink: #080b10;
  --soft-ink: #27313f;
  --muted: #667085;
  --line: #e3e8ef;
  --paper: #f7f9fc;
  --white: #ffffff;
  --blue: #1877ff;
  --blue-dark: #0b4ac6;
  --cyan: #2fb7ff;
  --green: #20b486;
  --shadow: 0 24px 70px rgba(15, 23, 42, .11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .86), rgba(247, 249, 252, .98)),
    radial-gradient(circle at 20% 10%, rgba(24, 119, 255, .10), transparent 32%),
    var(--paper);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 78px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(227, 232, 239, .78);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(18px);
}

.brand img {
  width: 154px;
  height: auto;
  display: block;
}

.nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
}

.nav a {
  padding: 9px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.nav a:hover {
  background: #edf5ff;
  color: var(--blue-dark);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 750;
  font-size: 14px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.header-cta {
  color: var(--white);
  background: var(--ink);
}

.button.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  box-shadow: 0 15px 34px rgba(24, 119, 255, .24);
}

.button.secondary {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--soft-ink);
}

.button:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(340px, .97fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(100vh - 78px);
  padding: clamp(48px, 7vw, 92px) clamp(18px, 4vw, 56px) 44px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 24px;
  font-size: clamp(46px, 7vw, 94px);
  line-height: .94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4.4vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.15;
}

.hero-text {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.sound-stage {
  position: relative;
  padding: 16px;
  border: 1px solid rgba(186, 200, 216, .88);
  border-radius: 28px;
  background: rgba(255, 255, 255, .74);
  box-shadow: var(--shadow);
}

.wave-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.video-frame {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  border-radius: 20px;
  background:
    linear-gradient(155deg, rgba(4, 9, 18, .96), rgba(18, 44, 80, .88) 52%, rgba(244, 248, 255, .9)),
    linear-gradient(90deg, transparent 0 46%, rgba(255, 255, 255, .22) 46% 47%, transparent 47%);
}

.video-frame::before {
  content: "";
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 24px;
}

.street-line {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 23%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .82), transparent);
}

.pulse {
  position: absolute;
  border-radius: 999px;
  border: 1px solid rgba(47, 183, 255, .55);
  background: rgba(47, 183, 255, .10);
}

.p1 {
  width: 180px;
  height: 180px;
  left: 12%;
  top: 20%;
}

.p2 {
  width: 250px;
  height: 250px;
  right: -4%;
  bottom: 3%;
}

.cue-card {
  position: absolute;
  left: 24px;
  bottom: 24px;
  width: min(260px, calc(100% - 48px));
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 16px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(16px);
}

.cue-card span {
  display: block;
  margin-bottom: 7px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
}

.wave-panel {
  margin-top: 14px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
}

.wave-row {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 148px;
  height: 52px;
}

.wave-row i {
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--cyan), var(--blue-dark));
}

.wave-row i:nth-child(1) { height: 12px; }
.wave-row i:nth-child(2) { height: 28px; }
.wave-row i:nth-child(3) { height: 44px; }
.wave-row i:nth-child(4) { height: 22px; }
.wave-row i:nth-child(5) { height: 50px; }
.wave-row i:nth-child(6) { height: 33px; }
.wave-row i:nth-child(7) { height: 18px; }
.wave-row i:nth-child(8) { height: 42px; }
.wave-row i:nth-child(9) { height: 24px; }
.wave-row i:nth-child(10) { height: 48px; }
.wave-row i:nth-child(11) { height: 30px; }
.wave-row i:nth-child(12) { height: 16px; }

.wave-panel strong,
.wave-panel span {
  display: block;
}

.wave-panel span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0 clamp(18px, 4vw, 56px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--line);
}

.signal-strip div {
  padding: 24px;
  background: rgba(255, 255, 255, .86);
}

.signal-strip strong,
.signal-strip span {
  display: block;
}

.signal-strip strong {
  margin-bottom: 8px;
  font-size: 18px;
}

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

.section,
.objectives,
.faq,
.contact,
.feature-grid,
.waitlist {
  margin: 0 auto;
  padding: clamp(74px, 9vw, 124px) clamp(18px, 4vw, 56px);
  max-width: 1400px;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, .75fr);
  gap: clamp(30px, 7vw, 96px);
  align-items: start;
}

.section-copy p,
.promise p,
.waitlist p,
.contact p,
.timeline p,
.feature-card p,
.faq p {
  color: var(--muted);
  line-height: 1.65;
}

.section-copy p {
  font-size: 18px;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr .9fr;
  gap: 16px;
  padding-top: 0;
}

.feature-card {
  min-height: 270px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 18px 50px rgba(15, 23, 42, .06);
}

.feature-card.tall {
  grid-row: span 2;
  min-height: 556px;
}

.feature-card.blue {
  color: var(--white);
  border-color: transparent;
  background:
    radial-gradient(circle at 80% 10%, rgba(255, 255, 255, .24), transparent 34%),
    linear-gradient(135deg, #091522, #0c63e7);
}

.feature-card.blue p,
.feature-card.blue .number {
  color: rgba(255, 255, 255, .76);
}

.number {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--blue-dark);
  font-weight: 800;
}

.mini-browser {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 34px;
}

.mini-browser div {
  min-height: 94px;
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(24, 119, 255, .12), transparent),
    repeating-linear-gradient(90deg, #0f172a 0 5px, transparent 5px 11px),
    #eef6ff;
  background-position: center;
}

.promise {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1fr);
  gap: clamp(30px, 7vw, 86px);
  align-items: center;
}

.promise-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 420px;
  border-radius: 28px;
  background: #090d14;
  box-shadow: var(--shadow);
}

.promise-visual span {
  width: 18px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff, #32b7ff 38%, #124dcb);
}

.promise-visual span:nth-child(1) { height: 84px; }
.promise-visual span:nth-child(2) { height: 188px; }
.promise-visual span:nth-child(3) { height: 300px; }
.promise-visual span:nth-child(4) { height: 142px; }
.promise-visual span:nth-child(5) { height: 230px; }

.objectives-head,
.faq-head {
  max-width: 720px;
  margin-bottom: 36px;
}

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

.timeline div {
  padding: 28px 22px 0 0;
  border-right: 1px solid var(--line);
}

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

.timeline span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.timeline strong {
  display: block;
  margin-bottom: 10px;
  font-size: 20px;
}

.waitlist {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(340px, .7fr);
  gap: clamp(30px, 7vw, 92px);
  align-items: center;
  margin-top: 24px;
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, .88), rgba(236, 246, 255, .88)),
    radial-gradient(circle at 10% 15%, rgba(24, 119, 255, .18), transparent 32%);
}

.signup-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 20px 54px rgba(15, 23, 42, .08);
}

label {
  display: grid;
  gap: 8px;
  color: var(--soft-ink);
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fbfdff;
  color: var(--ink);
  font: inherit;
}

input:focus,
select:focus {
  outline: 3px solid rgba(24, 119, 255, .14);
  border-color: var(--blue);
}

.signup-form .button {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.legal-note {
  margin: 2px 0 0;
  padding-top: 4px;
  color: #7b8492;
  font-size: 12px;
  line-height: 1.55;
}

.faq {
  display: grid;
  grid-template-columns: minmax(0, .75fr) minmax(360px, 1fr);
  gap: clamp(30px, 7vw, 86px);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 15px 38px rgba(15, 23, 42, .05);
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  color: var(--ink);
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 22px 22px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .52fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.privacy {
  display: grid;
  grid-template-columns: minmax(0, .55fr) minmax(360px, 1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
  margin: 0 auto;
  padding: clamp(56px, 7vw, 90px) clamp(18px, 4vw, 56px);
  max-width: 1400px;
}

.privacy-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 15px 38px rgba(15, 23, 42, .05);
}

.privacy-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.privacy-card p + p {
  margin-top: 14px;
}

.privacy-card a,
.footer a {
  color: var(--blue-dark);
  font-weight: 750;
}

.contact-card {
  display: grid;
  gap: 9px;
  padding: 28px;
  border-radius: 24px;
  color: var(--white);
  background: #090d14;
  box-shadow: var(--shadow);
}

.contact-card span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.contact-card strong {
  overflow-wrap: anywhere;
  font-size: 24px;
}

.contact-card small {
  color: rgba(255, 255, 255, .68);
  line-height: 1.5;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .hero,
  .two-col,
  .promise,
  .waitlist,
  .faq,
  .contact,
  .privacy {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

  .feature-card.tall {
    grid-row: auto;
    min-height: 360px;
  }

  .timeline div:nth-child(2) {
    border-right: 0;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 68px;
    gap: 12px;
  }

  .brand img {
    width: 114px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 13px;
  }

  h1 {
    font-size: 43px;
  }

  .hero {
    padding-top: 42px;
  }

  .video-frame {
    min-height: 330px;
  }

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

  .feature-grid,
  .timeline,
  .signal-strip {
    grid-template-columns: 1fr;
  }

  .timeline div,
  .timeline div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding-bottom: 22px;
  }

  .timeline div:last-child {
    border-bottom: 0;
  }

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