:root {
  --accent: #ffcf01;
  --text-light: #ffffff;
  --bg-green: #40b16d;
  --bg-deep: #07242e;
  --card-dark: #0f3947;
  --card-soft: rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.18);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  --radius: 18px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--text-light);
  background: linear-gradient(150deg, var(--bg-deep) 0%, #103845 45%, var(--bg-green) 100%);
  min-height: 100vh;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-shell {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(7, 36, 46, 0.72);
  border-bottom: 1px solid var(--line-soft);
}

.top-nav .site-shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: var(--bg-deep);
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: 0.2s ease;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  border-color: var(--accent);
  background: rgba(255, 207, 1, 0.12);
  outline: none;
}

.hero {
  padding: 76px 0 44px;
  position: relative;
  overflow: clip;
}

.hero::before {
  content: "";
  position: absolute;
  right: -110px;
  top: -40px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 207, 1, 0.8) 0 18%, transparent 18% 32%, rgba(255, 207, 1, 0.5) 32% 38%, transparent 38% 54%, rgba(255, 255, 255, 0.25) 54% 58%, transparent 58%);
  filter: blur(0.5px);
  opacity: 0.5;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 30px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 207, 1, 0.16);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.1;
}

.subtitle {
  margin: 0 0 18px;
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: rgba(255, 255, 255, 0.88);
}

.hero p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.9);
}

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

.whisper-wave {
  margin-top: 16px;
  width: min(640px, 100%);
  height: auto;
}

.whisper-wave path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 7;
}

.whisper-wave path:first-child {
  stroke: rgba(255, 207, 1, 0.95);
}

.whisper-wave path:last-child {
  stroke: rgba(255, 255, 255, 0.45);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 10px 18px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.button-primary {
  background: var(--accent);
  color: var(--bg-deep);
}

.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.button-secondary {
  border-color: var(--line-soft);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.1);
}

.phone-fan {
  display: grid;
  grid-template-columns: repeat(3, minmax(88px, 1fr));
  gap: 12px;
}

.phone-frame {
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  padding: 8px;
  box-shadow: var(--shadow);
}

.phone-frame img {
  width: 100%;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  border-radius: 18px;
  display: block;
}

.section {
  padding: 22px 0 18px;
}

.section h2 {
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  margin: 0 0 8px;
}

.section-orbit {
  display: block;
  width: min(920px, 100%);
  margin-bottom: 8px;
}

.section-orbit path {
  fill: none;
  stroke: rgba(255, 207, 1, 0.55);
  stroke-width: 3;
  stroke-dasharray: 5 8;
}

.lead {
  max-width: 760px;
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.9);
}

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

.rhythm-card {
  background: linear-gradient(170deg, var(--card-soft), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px;
}

.rhythm-label {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 207, 1, 0.14);
  color: var(--accent);
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.signal-band {
  margin: 22px 0 8px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(7, 36, 46, 0.3);
}

.signal-title {
  margin: 0;
  padding: 14px 18px;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--line-soft);
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.signal-row div {
  padding: 14px;
  border-right: 1px solid var(--line-soft);
}

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

.signal-row strong {
  display: block;
  color: var(--accent);
}

.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.panel {
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.05);
  padding: 16px;
}

.panel ul {
  margin: 10px 0 0 18px;
  padding: 0;
}

.cta {
  margin: 24px 0 36px;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: linear-gradient(150deg, rgba(255, 207, 1, 0.18), rgba(255, 207, 1, 0.06));
  padding: 18px;
}

.cta p {
  margin: 0 0 12px;
}

.footer {
  border-top: 1px solid var(--line-soft);
  margin-top: 28px;
}

.footer .site-shell {
  padding: 18px 0 26px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.92);
}

.legal-shell {
  width: min(900px, 92vw);
  margin: 30px auto 34px;
}

.legal-header {
  margin-bottom: 16px;
}

.legal-header h1 {
  margin-bottom: 6px;
}

.doc {
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 18px;
}

.doc h2 {
  margin-top: 18px;
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.doc p {
  margin: 0 0 10px;
}

.doc ul {
  margin: 0 0 12px 20px;
  padding: 0;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.contact-item {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  padding: 12px;
}

.contact-item strong {
  display: block;
  color: var(--accent);
}

.contact-form {
  display: grid;
  gap: 10px;
}

.contact-form label {
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  margin-top: 5px;
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line-soft);
  background: rgba(7, 36, 46, 0.45);
  color: var(--text-light);
  padding: 10px 12px;
  font: inherit;
}

.contact-form textarea {
  min-height: 128px;
  resize: vertical;
}

@media (max-width: 920px) {
  .hero-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .phone-fan {
    grid-template-columns: repeat(3, minmax(85px, 1fr));
  }

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

  .signal-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .top-nav .site-shell {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    padding-top: 52px;
  }

  .phone-fan {
    grid-template-columns: repeat(2, minmax(85px, 1fr));
  }

  .signal-row {
    grid-template-columns: 1fr;
  }
}