:root {
  --bg: #050b14;
  --bg-2: #0a1220;
  --ink: #f4f7fb;
  --muted: #9aa6b8;
  --line: rgba(255, 255, 255, 0.1);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.07);
  --mint: #00e6a8;
  --mint-2: #00c892;
  --mint-dim: rgba(0, 230, 168, 0.14);
  --blue-glow: #1d6bff;
  --radius: 22px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --header-h: 76px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  line-height: 1.55;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: var(--header-h);
  padding: 0.85rem clamp(1rem, 3vw, 2rem);
  background: rgba(5, 11, 20, 0.55);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  justify-self: start;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--mint), #007a58);
  position: relative;
  box-shadow: 0 0 24px rgba(0, 230, 168, 0.35);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 9px 8px 8px 14px;
  border-right: 2.5px solid #04110c;
  border-bottom: 2.5px solid #04110c;
  transform: rotate(45deg);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-name span {
  color: var(--mint);
  font-weight: 600;
}

.nav-pill {
  display: none;
  align-items: center;
  gap: 0.2rem;
  padding: 0.35rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-pill a {
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.nav-pill a:hover { color: var(--ink); }
.nav-pill a.is-active {
  background: var(--mint);
  color: #04110c;
  font-weight: 600;
}

.header-cta {
  justify-self: end;
  display: none;
}

.nav-toggle {
  justify-self: end;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

body.nav-open .nav-pill {
  display: flex;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 1rem;
  right: 1rem;
  flex-direction: column;
  border-radius: 18px;
  padding: 0.6rem;
  background: rgba(10, 18, 32, 0.96);
  z-index: 70;
}

body.nav-open .nav-pill a {
  width: 100%;
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 46px;
  padding: 0.7rem 1.25rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn:hover { transform: translateY(-1px); }
.btn-pill { border-radius: 999px; }
.btn-lg { min-height: 56px; padding: 0.9rem 1.7rem; font-size: 1.02rem; }

.btn-primary {
  background: var(--mint);
  color: #04110c;
  box-shadow: 0 0 0 1px rgba(0, 230, 168, 0.2), 0 10px 40px rgba(0, 230, 168, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 0 0 1px rgba(0, 230, 168, 0.35), 0 14px 48px rgba(0, 230, 168, 0.4);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: rgba(0, 230, 168, 0.45);
  color: var(--mint);
}

.plan .btn,
.plan-hit .btn { width: 100%; }

/* Hero — centered Payon style */
.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  place-items: center;
  text-align: center;
  padding: clamp(3rem, 10vw, 6rem) 1.25rem 4rem;
  overflow: hidden;
}

.hero-sky {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,0.55), transparent),
    radial-gradient(1px 1px at 28% 42%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 65% 22%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 78% 48%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1.2px 1.2px at 42% 12%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1px 1px at 90% 30%, rgba(255,255,255,0.3), transparent);
  opacity: 0.7;
  animation: twinkle 6s ease-in-out infinite alternate;
}

.horizon {
  position: absolute;
  left: 50%;
  bottom: -18%;
  width: 140%;
  height: 70%;
  transform: translateX(-50%);
  border-radius: 50%;
  border-top: 2px solid rgba(70, 140, 255, 0.55);
  box-shadow:
    0 0 60px 8px rgba(29, 107, 255, 0.35),
    0 -20px 100px 20px rgba(29, 107, 255, 0.18);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(29, 107, 255, 0.22), transparent 55%);
}

.horizon-glow {
  position: absolute;
  left: 50%;
  bottom: 8%;
  width: 70%;
  height: 180px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(0, 230, 168, 0.12), transparent 70%);
  filter: blur(20px);
}

@keyframes twinkle {
  from { opacity: 0.45; }
  to { opacity: 0.85; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 1.25rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.hero h1 span {
  color: var(--mint);
  text-shadow: 0 0 40px rgba(0, 230, 168, 0.35);
}

.lede {
  margin: 1.25rem auto 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  font-weight: 400;
}

.hero .btn { margin-top: 2rem; }

/* Trust bar */
.trust {
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 2.5rem;
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}

.trust > p {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.trust ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem 2rem;
}

.trust li {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: rgba(244, 247, 251, 0.55);
  letter-spacing: -0.02em;
}

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 4vw, 2.5rem);
}

.section-head {
  max-width: 620px;
  margin-bottom: 2rem;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2,
.calc-copy h2,
.contact-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4.2vw, 2.7rem);
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.section-head p,
.calc-copy p,
.contact-panel > p:not(.eyebrow) {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
}

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.steps li {
  padding: 1.45rem 1.35rem 1.55rem;
  animation: rise 0.7s ease both;
  animation-delay: calc(var(--i) * 0.12s);
}

.steps span {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--mint);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

.steps h3 {
  margin: 0.55rem 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.steps p {
  margin: 0;
  color: var(--muted);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* Devices */
.device-rail {
  display: grid;
  gap: 1rem;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 1fr);
  overflow-x: auto;
  padding-bottom: 0.4rem;
  scroll-snap-type: x mandatory;
}

.rail-card {
  scroll-snap-align: start;
  padding: 1.25rem;
  min-height: 210px;
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
}

.rail-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 230, 168, 0.35);
}

.rail-card.accent {
  background: linear-gradient(165deg, rgba(0, 230, 168, 0.16), rgba(255, 255, 255, 0.03));
  border-color: rgba(0, 230, 168, 0.35);
  box-shadow: 0 0 40px rgba(0, 230, 168, 0.08);
}

.rail-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.chip {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: var(--mint-dim);
  color: var(--mint);
}

.rail-top b {
  color: var(--mint);
  font-family: var(--font-display);
}

.rail-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.price {
  margin: 0.4rem 0 1rem;
  color: var(--muted);
  font-weight: 500;
}

.meter {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.meter i {
  display: block;
  height: 100%;
  width: var(--w);
  background: linear-gradient(90deg, var(--mint), #3b82f6);
  border-radius: inherit;
}

.meta {
  margin: 0.7rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

/* Calc */
.calc { padding-top: 0; }

.calc-panel {
  display: grid;
  gap: 1.75rem;
  padding: clamp(1.4rem, 4vw, 2.25rem);
}

.calc-form {
  display: grid;
  gap: 1.25rem;
}

.calc-form label {
  display: grid;
  gap: 0.55rem;
}

.calc-form label span {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--muted);
}

.calc-form input[type="range"] {
  width: 100%;
  accent-color: var(--mint);
}

.calc-form output {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--mint);
}

.calc-result {
  display: grid;
  gap: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.calc-result > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.calc-result span { color: var(--muted); }
.calc-result strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

/* Plans */
.plan-grid {
  display: grid;
  gap: 1rem;
}

.plan {
  position: relative;
  padding: 1.45rem 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  transition: transform 0.25s, border-color 0.25s;
}

.plan:hover { transform: translateY(-3px); }

.plan-hit {
  background: linear-gradient(165deg, rgba(0, 230, 168, 0.16), rgba(255, 255, 255, 0.03));
  border-color: rgba(0, 230, 168, 0.4);
  box-shadow: 0 0 50px rgba(0, 230, 168, 0.1);
}

.plan-premier {
  border-color: rgba(255, 255, 255, 0.2);
}

.plan-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  margin: 0;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--mint);
  color: #04110c;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
}

.plan h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.plan-price {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
}

.plan-price small {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
}

.plan-sub {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.plan-sub b { color: var(--mint); font-weight: 600; }

.plan ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
  flex: 1;
}

.plan li {
  font-size: 0.95rem;
  color: var(--muted);
  padding-left: 1.1rem;
  position: relative;
}

.plan li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px rgba(0, 230, 168, 0.6);
}

.plan li b { color: var(--ink); font-weight: 600; }

/* Referral */
.referral-wrap {
  padding: clamp(1.4rem, 4vw, 2.25rem);
}

.path-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.path {
  padding: 1.2rem 1.15rem;
  border-radius: 16px;
  background: rgba(0, 230, 168, 0.05);
  border: 1px solid rgba(0, 230, 168, 0.15);
}

.path span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mint);
}

.path h3 {
  margin: 0.45rem 0 0.35rem;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.path p {
  margin: 0;
  color: var(--muted);
}

.path-or {
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.78rem;
  align-self: center;
}

/* Contact */
.contact-panel {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 3.5rem) 1.25rem;
  background:
    radial-gradient(500px 220px at 50% 0%, rgba(0, 230, 168, 0.12), transparent 70%),
    var(--glass);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

/* Footer */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

/* Reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (min-width: 960px) {
  .site-header {
    grid-template-columns: 1fr auto 1fr;
  }

  .nav-pill { display: flex; }
  .nav-toggle { display: none; }
  .header-cta { display: inline-flex; }

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

  .device-rail {
    grid-auto-flow: unset;
    grid-template-columns: repeat(4, 1fr);
    overflow: visible;
  }

  .calc-panel {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

  .plan-grid {
    grid-template-columns: repeat(4, 1fr);
    align-items: stretch;
  }

  .plan-hit {
    transform: scale(1.04);
  }

  .plan-hit:hover {
    transform: scale(1.04) translateY(-3px);
  }

  .path-grid {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }

  .path-or {
    display: grid;
    place-items: center;
  }
}

@media (max-width: 959px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .stars, .steps li { animation: none !important; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}