:root {
  --bg: #050608;
  --panel: #10141b;
  --panel-soft: #151b24;
  --text: #f7f7f8;
  --muted: #b9c0cb;
  --red: #b61227;
  --red-bright: #ef334f;
  --blue: #4cc9ff;
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 75% 8%, rgba(76, 201, 255, 0.16), transparent 34rem),
    radial-gradient(circle at 12% 18%, rgba(182, 18, 39, 0.22), transparent 30rem),
    linear-gradient(135deg, #050608 0%, #0b0d12 48%, #050608 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 6, 8, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 9.5rem;
  border-radius: 999px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2vw, 1.3rem);
  color: var(--muted);
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
}

nav a:hover,
.nav-warning {
  color: var(--text);
}

.nav-warning {
  border: 1px solid rgba(239, 51, 79, 0.45);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: rgba(182, 18, 39, 0.16);
}

.section-pad {
  padding: clamp(4rem, 8vw, 7.5rem) clamp(1rem, 5vw, 5.5rem);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 12ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3.4rem, 9vw, 7.6rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.15rem, 5vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.35rem;
  line-height: 1.2;
}

.subheadline {
  max-width: 45rem;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.cta-row,
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: linear-gradient(135deg, var(--red-bright), var(--red));
  box-shadow: 0 16px 42px rgba(182, 18, 39, 0.34);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.trust-strip span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.8rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.hero-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: linear-gradient(160deg, rgba(21, 27, 36, 0.9), rgba(9, 11, 16, 0.95));
  box-shadow: var(--shadow);
  max-width: 34rem;
  justify-self: center;
}

.hero-card > img {
  width: 100%;
  max-height: 34rem;
  object-fit: contain;
  opacity: 0.88;
  padding: 1rem;
}

.pulse-ring {
  position: absolute;
  inset: auto 17% 35% auto;
  width: 8rem;
  height: 8rem;
  border: 1px solid rgba(239, 51, 79, 0.55);
  border-radius: 999px;
  box-shadow: 0 0 54px rgba(239, 51, 79, 0.5), inset 0 0 48px rgba(239, 51, 79, 0.2);
}

.hero-note {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: grid;
  gap: 0.2rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.2rem;
  padding: 1rem;
  background: rgba(5, 6, 8, 0.72);
  backdrop-filter: blur(14px);
}

.hero-note span,
.section-intro p,
.split p,
.glass-card p,
.dosage-card p,
.kit-card p,
.warning-panel p,
.site-footer p {
  color: var(--muted);
}

.section-intro {
  max-width: 62rem;
  margin-bottom: 2rem;
}

.section-intro.narrow {
  max-width: 54rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 22rem));
  justify-content: center;
  gap: 1rem;
}

.glass-card,
.dosage-card,
.kit-card,
.warning-panel,
.info-box {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(21, 27, 36, 0.82), rgba(10, 12, 17, 0.92));
  box-shadow: var(--shadow);
}

.glass-card {
  overflow: hidden;
  border-radius: 1.5rem;
}

.glass-card img {
  width: 100%;
  height: 14rem;
  object-fit: contain;
  padding: 0.9rem;
  background: #07090d;
}

.glass-card h3,
.glass-card p {
  padding-inline: 1.2rem;
}

.glass-card h3 {
  padding-top: 1.2rem;
}

.glass-card p {
  padding-bottom: 1.3rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.split.reverse {
  grid-template-columns: minmax(18rem, 0.9fr) minmax(0, 1fr);
}

.check-list,
.kit-list {
  display: grid;
  gap: 0.8rem;
  margin: 1.4rem 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.kit-list li {
  position: relative;
  padding-left: 2rem;
  color: var(--muted);
}

.check-list li::before,
.kit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: var(--red-bright);
  box-shadow: 0 0 20px rgba(239, 51, 79, 0.65);
}

.check-list.blue li::before {
  background: var(--blue);
  box-shadow: 0 0 20px rgba(76, 201, 255, 0.65);
}

.info-box {
  border-left: 4px solid var(--red-bright);
  border-radius: 1rem;
  padding: 1rem;
  color: var(--muted);
}

.info-box strong,
.check-list strong {
  color: var(--text);
}

.visual-stack {
  position: relative;
}

.feature-image,
.water-visual,
.dosage-card,
.kit-card {
  border-radius: 1.6rem;
}

.feature-image {
  width: min(100%, 23rem);
  margin-inline: auto;
  border: 1px solid var(--line);
  background: white;
  box-shadow: var(--shadow);
}

.small-float {
  position: absolute;
  right: -1rem;
  bottom: -3.2rem;
  width: min(58%, 18rem);
  border: 8px solid #0d1016;
}

.water-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(76, 201, 255, 0.24);
  background: rgba(76, 201, 255, 0.05);
  box-shadow: 0 24px 80px rgba(76, 201, 255, 0.12);
}

.water-visual img {
  width: 100%;
  max-height: 25rem;
  object-fit: contain;
  padding: 1rem;
  filter: saturate(0.86) brightness(0.82);
}

.blue-glow {
  position: absolute;
  inset: 12% 8% 8%;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(76, 201, 255, 0.33), transparent 64%);
  mix-blend-mode: screen;
}

.inline-product {
  max-width: 16rem;
  margin-top: 1rem;
  border-radius: 1rem;
}

.dosage-card {
  display: grid;
  grid-template-columns: minmax(12rem, 0.33fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1rem, 3vw, 2rem);
}

.dosage-card img {
  width: 100%;
  max-height: 21rem;
  object-fit: contain;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.dosage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.dosage-grid > div {
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.dosage-label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kit-card {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(18rem, 0.85fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding: clamp(1.25rem, 4vw, 3rem);
  background:
    radial-gradient(circle at 82% 20%, rgba(182, 18, 39, 0.22), transparent 22rem),
    linear-gradient(160deg, rgba(21, 27, 36, 0.92), rgba(8, 10, 14, 0.94));
}

.kit-card img {
  width: 100%;
  max-width: 36rem;
  justify-self: center;
  border-radius: 1.2rem;
  background: white;
}

.slogan {
  color: var(--text) !important;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  font-weight: 900;
  line-height: 1.08;
}

.safety {
  padding-top: 0;
}

.warning-panel {
  border-color: rgba(239, 51, 79, 0.55);
  border-radius: 1.5rem;
  padding: clamp(1.25rem, 4vw, 3rem);
  background:
    linear-gradient(90deg, rgba(182, 18, 39, 0.26), rgba(21, 27, 36, 0.9)),
    var(--panel);
}

.warning-panel h2 {
  max-width: 58rem;
  color: #fff;
  font-size: clamp(1.9rem, 4.4vw, 3.9rem);
}

.warning-panel a {
  color: var(--blue);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem clamp(1rem, 5vw, 5.5rem);
  border-top: 1px solid var(--line);
  background: #030406;
}

.site-footer div {
  max-width: 72rem;
}

.site-footer span {
  color: var(--muted);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand img {
    width: 7.5rem;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .hero,
  .split,
  .split.reverse,
  .dosage-card,
  .kit-card,
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-card > img {
    min-height: 22rem;
  }

  .small-float {
    position: static;
    width: 100%;
    margin-top: 1rem;
  }

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

  .site-footer span {
    white-space: normal;
  }
}

@media (max-width: 560px) {
  .section-pad {
    padding-inline: 1rem;
  }

  h1 {
    font-size: 3.2rem;
  }

  .cta-row .button {
    width: 100%;
  }
}