:root {
  color-scheme: light;
  --bg: #f6f8f9;
  --ink: #0d171d;
  --muted: #52636c;
  --hero: #071015;
  --hero-ink: #f3fbff;
  --hero-muted: #c1d4dc;
  --panel: #ffffff;
  --panel-2: #edf8f5;
  --line: rgba(13, 23, 29, 0.14);
  --line-dark: rgba(255, 255, 255, 0.16);
  --red: #f91648;
  --cyan: #12a98d;
  --gold: #9a6a05;
  --shadow: 0 18px 48px rgba(13, 23, 29, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 32px;
  background: rgba(7, 16, 21, 0.86);
  border-bottom: 1px solid var(--line-dark);
  color: var(--hero-ink);
  backdrop-filter: blur(14px);
}

.brand {
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand span {
  color: var(--red);
}

nav {
  display: flex;
  gap: 20px;
  color: var(--hero-muted);
  font-size: 0.94rem;
}

nav a {
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: 84svh;
  display: grid;
  align-items: center;
  padding: 104px 32px 58px;
  overflow: hidden;
  color: var(--hero-ink);
}

#signal-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: var(--hero);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 16, 21, 0.97) 0%, rgba(7, 16, 21, 0.72) 48%, rgba(7, 16, 21, 0.22) 100%),
    linear-gradient(0deg, rgba(7, 16, 21, 0.92) 0%, rgba(7, 16, 21, 0) 34%);
  pointer-events: none;
}

.hero__content,
.hero__panel {
  position: relative;
  z-index: 2;
}

.hero__content {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #63e6d2;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(3.1rem, 8vw, 7.4rem);
  line-height: 0.9;
}

h2 {
  margin: 0;
  max-width: 1020px;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1;
}

h3 {
  margin: 0;
  font-size: 1.22rem;
  line-height: 1.18;
}

.hero__lead {
  max-width: 750px;
  margin: 24px 0 0;
  color: #d6e8ee;
  font-size: clamp(1.05rem, 2vw, 1.34rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 900;
  text-align: center;
}

.button--primary {
  background: var(--red);
  border-color: var(--red);
  color: white;
}

.button--ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line-dark);
  color: var(--hero-ink);
}

.button--light {
  background: white;
  color: var(--ink);
}

.hero__promises {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  color: var(--hero-muted);
}

.hero__promises li {
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
}

.hero__panel {
  align-self: end;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 760px;
  margin-top: 38px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.hero__panel div {
  padding: 18px;
  background: rgba(14, 29, 37, 0.84);
}

.hero__panel strong {
  display: block;
  font-size: 2rem;
}

.hero__panel span {
  color: var(--hero-muted);
  font-size: 0.88rem;
}

.section {
  padding: 86px 32px;
}

.section--tight {
  padding-top: 72px;
}

.section--alt,
.section--split,
.faq {
  background: #eaf0f2;
}

.section__head {
  max-width: 980px;
  margin-bottom: 34px;
}

.section__head p,
.section--split p,
.contact p {
  color: var(--muted);
  max-width: 790px;
}

.pain-grid,
.comparison-grid,
.guard-grid,
.faq-list,
.radar-grid,
.mvp-grid,
.product-grid {
  display: grid;
  gap: 14px;
}

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

.comparison-grid,
.guard-grid,
.faq-list,
.radar-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mvp-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pain-grid article,
.comparison-grid article,
.guard-grid article,
.faq-list article,
.radar-grid article,
.mvp-card,
.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.pain-grid article {
  min-height: 245px;
  padding: 20px;
}

.pain-grid span,
.radar-grid span,
.mvp-card span,
.product-card > span {
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.pain-grid p,
.faq-list p,
.radar-grid p,
.mvp-card p,
.product-card p,
.product-points,
.comparison-grid span,
.guard-grid span {
  color: var(--muted);
}

.comparison-grid article,
.guard-grid article,
.radar-grid article {
  display: grid;
  gap: 10px;
  padding: 20px;
}

.comparison-grid strong,
.guard-grid strong {
  font-size: 1.05rem;
}

.radar {
  background: #f8fbfb;
}

.radar-grid article {
  min-height: 250px;
}

.mvp-board {
  margin-top: 36px;
  padding: 28px;
  border: 1px solid rgba(18, 169, 141, 0.28);
  border-radius: 8px;
  background: #0d171d;
  color: var(--hero-ink);
}

.mvp-board__head {
  max-width: 890px;
  margin-bottom: 24px;
}

.mvp-board__head .eyebrow {
  color: #63e6d2;
}

.mvp-board__head p {
  color: var(--hero-muted);
}

.mvp-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
  box-shadow: none;
}

.mvp-card--priority {
  background: rgba(99, 230, 210, 0.11);
  border-color: rgba(99, 230, 210, 0.38);
}

.mvp-card span {
  color: #ffc86b;
}

.mvp-card p {
  margin: 0;
  color: var(--hero-muted);
}

.mvp-card strong {
  margin-top: auto;
  color: var(--hero-ink);
}

.product-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
}

.product-card--featured {
  background: var(--panel-2);
  border-color: rgba(18, 169, 141, 0.42);
}

.product-card p {
  margin: 0;
}

.product-points {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
}

dl {
  display: grid;
  gap: 8px;
  margin: auto 0 0;
}

dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  font-weight: 900;
  text-align: right;
}

.section--split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 40px;
  align-items: start;
}

.steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

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

.faq-list article {
  padding: 20px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, auto);
  gap: 24px;
  align-items: center;
  background: var(--hero);
  color: var(--hero-ink);
}

.contact .eyebrow {
  color: #63e6d2;
}

.contact p {
  color: var(--hero-muted);
}

.contact__box {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 32px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: white;
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 900;
}

@media (max-width: 1100px) {
  .pain-grid,
  .comparison-grid,
  .guard-grid,
  .faq-list,
  .radar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  .site-header {
    position: sticky;
    padding: 0 18px;
  }

  nav {
    gap: 12px;
    font-size: 0.84rem;
  }

  .hero {
    min-height: 82svh;
    padding: 70px 18px 42px;
  }

  .hero__panel,
  .mvp-grid,
  .product-grid,
  .section--split,
  .contact {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 18px;
  }

  .steps li {
    grid-template-columns: 1fr;
  }

  .contact__box,
  .site-footer {
    justify-content: flex-start;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 18px;
    gap: 8px;
  }

  nav {
    flex-wrap: wrap;
  }

  .pain-grid,
  .comparison-grid,
  .guard-grid,
  .faq-list,
  .radar-grid,
  .mvp-grid {
    grid-template-columns: 1fr;
  }

  .hero__panel {
    display: none;
  }

  .button {
    width: 100%;
  }
}