:root {
  --bg: #0a0d0b;
  --bg-deep: #050706;
  --panel: rgba(255, 255, 255, 0.025);
  --panel-soft: rgba(255, 255, 255, 0.045);
  --green: #39ff88;
  --green-deep: #16c784;
  --green-glow: rgba(57, 255, 136, 0.16);
  --text: #f3f1ea;
  --text-soft: #d6dcd6;
  --muted: #8e958f;
  --hair: rgba(255, 255, 255, 0.08);
  --hair-strong: rgba(255, 255, 255, 0.14);
  --max: 1200px;
  --max-narrow: 920px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Manrope", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 500;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-touching-carousel {
  overflow: hidden;
}

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

code {
  color: var(--green);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  padding: 0.08em 0.32em;
  background: rgba(57, 255, 136, 0.08);
  border-radius: 2px;
}

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

/* ===== HEADER ===== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  padding: 10px clamp(18px, 4vw, 44px);
  background: rgba(5, 7, 6, 0.78);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid var(--hair);
}

.brand img {
  width: 108px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.nav-links a {
  position: relative;
  transition: color 200ms ease;
}

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

.nav-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--bg-deep);
  background: var(--green);
  padding: 9px 14px 9px 16px;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: -0.005em;
  border-radius: 999px;
  transition: transform 180ms ease, box-shadow 180ms ease;
  box-shadow: 0 0 0 0 rgba(57, 255, 136, 0);
}

.nav-cta em {
  font-style: normal;
  font-weight: 800;
  font-size: 12px;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.18);
  color: var(--bg-deep);
  border-radius: 999px;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -10px rgba(57, 255, 136, 0.55);
}

/* ===== TYPOGRAPHY ===== */

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

h1 {
  font-family: "Manrope", sans-serif;
  font-size: clamp(46px, 7.4vw, 104px);
  font-weight: 800;
  line-height: 0.94;
  letter-spacing: -0.045em;
  margin: 0 0 28px;
  color: var(--text);
}

h2 {
  font-family: "Manrope", sans-serif;
  font-size: clamp(36px, 5.6vw, 76px);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.04em;
  margin: 0 0 28px;
  color: var(--text);
}

h3 {
  font-family: "Manrope", sans-serif;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

p {
  font-size: 18px;
  line-height: 1.55;
  color: var(--text-soft);
}

.accent,
.accent-text {
  color: var(--green);
}

.section-label,
.hero-kicker {
  display: inline-block;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 22px;
  position: relative;
  padding-left: 18px;
}

.section-label::before,
.hero-kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 1px;
  background: var(--green);
}

/* ===== HERO ===== */

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  align-items: end;
  gap: clamp(28px, 5vw, 80px);
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(60px, 8vw, 110px) clamp(20px, 4vw, 44px) 0;
  text-align: left;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(57, 255, 136, 0.07), transparent 50%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: auto, 86px 86px, 86px 86px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
  opacity: 0.85;
}

.hero-kicker {
  margin-bottom: 24px;
}

.hero-content {
  position: relative;
  z-index: 4;
  padding-bottom: clamp(48px, 6vw, 80px);
}

.hero h1 {
  max-width: 12ch;
}

.hero-subtitle {
  max-width: 54ch;
  color: var(--text-soft);
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.5;
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-points i {
  width: 5px;
  height: 5px;
  background: var(--green);
  border-radius: 999px;
  flex: 0 0 auto;
}

.hero-visual {
  position: relative;
  align-self: end;
  justify-self: center;
  width: min(520px, 100%);
  margin-bottom: 0;
}

.hero-visual img {
  width: 100%;
  display: block;
  -webkit-mask-image: linear-gradient(to bottom, black 78%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 78%, transparent 100%);
  filter:
    drop-shadow(0 24px 50px rgba(0, 0, 0, 0.5))
    drop-shadow(0 18px 60px rgba(57, 255, 136, 0.12));
}

/* ===== BUTTONS ===== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  font-family: "Manrope", sans-serif;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.01em;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
  cursor: pointer;
}

.button.primary {
  background: var(--green);
  color: var(--bg-deep);
  box-shadow: 0 0 0 0 rgba(57, 255, 136, 0);
}

.button.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 38px -12px rgba(57, 255, 136, 0.5);
}

.button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--hair-strong);
}

.button.ghost:hover {
  border-color: var(--green);
  color: var(--green);
}

.button.big {
  min-height: 64px;
  padding-inline: 36px;
  font-size: 16px;
}

/* ===== SECTIONS ===== */

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 11vw, 150px) clamp(20px, 4vw, 44px);
  border-top: 1px solid var(--hair);
  position: relative;
}

.demo {
  border-top: 0;
  padding-top: clamp(64px, 9vw, 120px);
}

.lead {
  max-width: 60ch;
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--text-soft);
  line-height: 1.5;
}

/* ===== DEMO ===== */

.demo-frame {
  max-width: 880px;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.demo-frame h2 {
  max-width: 16ch;
}

.carousel-shell {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 52px;
  gap: 22px;
  align-items: center;
  max-width: 760px;
  margin: 0 auto;
}

.sales-carousel {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-deep);
  border: 1px solid var(--hair-strong);
  border-radius: 14px;
  box-shadow:
    0 40px 90px -30px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(57, 255, 136, 0.05);
  touch-action: pan-y;
  user-select: none;
}

.sales-slide {
  position: absolute;
  inset: 0;
  display: none;
}

.sales-slide.current {
  display: flex;
}

.sales-slide.image-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-control {
  width: 52px;
  height: 52px;
  border: 1px solid var(--hair-strong);
  background: transparent;
  color: var(--text);
  font-size: 28px;
  line-height: 1;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.carousel-control:hover {
  border-color: var(--green);
  color: var(--green);
  background: rgba(57, 255, 136, 0.06);
}

.swipe-hint {
  display: none;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin: 16px 0 0;
  text-align: center;
  text-transform: uppercase;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
}

.carousel-dots button {
  width: 28px;
  height: 3px;
  border: 0;
  background: var(--hair-strong);
  cursor: pointer;
  border-radius: 999px;
  transition: background 180ms ease;
}

.carousel-dots button.active {
  background: var(--green);
}

.demo-cta {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

/* ===== THESIS ===== */

.thesis h2 {
  max-width: 18ch;
}

.thesis-body {
  max-width: 64ch;
  margin-top: 12px;
}

.thesis-body p {
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.5;
  margin-bottom: 22px;
}

.thesis-body p:last-child {
  margin-bottom: 0;
}

.accent-text {
  color: var(--green);
  font-weight: 700;
}

/* ===== PAIN ===== */

.pain h2 {
  max-width: 12ch;
}

.pain-body {
  max-width: 62ch;
}

.pain-body p {
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.55;
  color: var(--text-soft);
}

/* ===== HOW ===== */

.how h2 {
  max-width: 18ch;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.how-step {
  padding: 30px 28px 32px;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: 14px;
  transition: border-color 220ms ease, transform 220ms ease, background 220ms ease;
}

.how-step:hover {
  border-color: rgba(57, 255, 136, 0.32);
  background: var(--panel-soft);
  transform: translateY(-2px);
}

.how-num {
  font-family: "Manrope", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--green);
  margin-bottom: 16px;
}

.how-step h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.how-step p {
  font-size: 16px;
  color: var(--text-soft);
  line-height: 1.55;
}

.how-cta {
  display: flex;
  justify-content: flex-start;
  margin-top: 40px;
}

/* ===== INCLUDED ===== */

.included h2 {
  max-width: 16ch;
}

.check-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  max-width: 720px;
}

.check-list li {
  position: relative;
  padding: 22px 22px 22px 44px;
  border-top: 1px solid var(--hair);
  font-size: 18px;
  color: var(--text-soft);
  line-height: 1.45;
}

.check-list li:last-child {
  border-bottom: 1px solid var(--hair);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 12px;
  height: 12px;
  background: var(--green);
  border-radius: 2px;
  box-shadow: 0 0 0 4px rgba(57, 255, 136, 0.12);
}

/* ===== AUDIENCE ===== */

.audience h2 {
  max-width: 18ch;
}

.audience-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  max-width: 720px;
}

.audience-list li {
  position: relative;
  padding: 22px 22px 22px 44px;
  border-top: 1px solid var(--hair);
  font-size: 18px;
  color: var(--text-soft);
  line-height: 1.45;
}

.audience-list li:last-child {
  border-bottom: 1px solid var(--hair);
}

.audience-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 22px;
  color: var(--green);
  font-weight: 700;
  font-size: 18px;
}

/* ===== PRICING ===== */

.pricing {
  padding-top: clamp(90px, 11vw, 150px);
}

.price-box {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  padding: clamp(40px, 6vw, 72px);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(57, 255, 136, 0.08), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--hair-strong);
  border-radius: 22px;
  overflow: hidden;
}

.price-box::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--green);
}

.price-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price-meta .section-label {
  margin-bottom: 4px;
}

.anchor {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.5;
  text-decoration: line-through;
  text-decoration-color: rgba(255, 255, 255, 0.32);
  max-width: 28ch;
}

.price-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.price-tag {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 14px;
}

.price-currency {
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 700;
  color: var(--text-soft);
  letter-spacing: -0.02em;
}

.price-amount {
  font-size: clamp(86px, 11vw, 144px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.price-detail {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  flex-basis: 100%;
  margin-top: -4px;
}

.price-line {
  font-size: 17px;
  color: var(--text-soft);
  margin: 0 0 24px;
  max-width: 42ch;
}

.price-main .button.big {
  margin-bottom: 24px;
}

.guarantee {
  display: grid;
  gap: 6px;
  padding-top: 22px;
  border-top: 1px solid var(--hair);
  width: 100%;
}

.guarantee strong {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--green);
  text-transform: uppercase;
}

.guarantee span {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.5;
}

/* ===== FAQ ===== */

.faq h2 {
  max-width: 16ch;
}

.faq-list {
  display: grid;
  gap: 0;
  max-width: 820px;
  margin-top: 12px;
  border-top: 1px solid var(--hair);
}

.faq-list details {
  border-bottom: 1px solid var(--hair);
  padding: 22px 0;
  background: transparent;
  border-radius: 0;
}

.faq-list summary {
  cursor: pointer;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
  list-style: none;
  position: relative;
  padding-right: 36px;
  line-height: 1.35;
  transition: color 180ms ease;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 400;
  color: var(--green);
  line-height: 1;
  transition: transform 220ms ease;
}

.faq-list details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-list summary:hover {
  color: var(--green);
}

.faq-list details p {
  margin: 14px 0 4px;
  color: var(--text-soft);
  font-size: 17px;
  max-width: 62ch;
  line-height: 1.55;
}

/* ===== FINAL CTA ===== */

.final-cta {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(100px, 13vw, 180px) clamp(20px, 4vw, 44px);
  border-top: 1px solid var(--hair);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(57, 255, 136, 0.14), transparent 60%);
}

.final-cta h2 {
  max-width: 14ch;
  margin: 0 auto 22px;
  text-align: center;
}

.final-cta p {
  max-width: 56ch;
  margin: 0 auto 32px;
  text-align: center;
  font-size: clamp(17px, 1.5vw, 20px);
}

.final-cta .button {
  display: flex;
  width: fit-content;
  margin: 0 auto;
}

/* ===== FOOTER ===== */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px clamp(18px, 4vw, 44px);
  border-top: 1px solid var(--hair);
  color: var(--muted);
  font-size: 13px;
}

.site-footer img {
  width: 100px;
  opacity: 0.7;
}

/* ===== REVEAL ===== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== TABLET ===== */

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

  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: left;
    padding-top: clamp(40px, 7vw, 80px);
  }

  .hero-content {
    padding-bottom: clamp(24px, 4vw, 40px);
  }

  .hero-visual {
    width: min(480px, 86vw);
    justify-self: center;
    margin-top: 4px;
  }

  .hero-actions,
  .hero-points {
    justify-content: flex-start;
  }

  .how-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .price-box {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .price-meta .anchor {
    max-width: 100%;
  }
}

/* ===== MOBILE ===== */

@media (max-width: 640px) {
  .site-header {
    padding: 10px 16px;
  }

  .brand img {
    width: 92px;
  }

  .nav-cta {
    padding: 8px 10px 8px 12px;
    font-size: 12px;
  }

  .nav-cta em {
    font-size: 11px;
    padding: 2px 7px;
  }

  .hero {
    padding: 32px 18px 0;
    gap: 14px;
  }

  .hero-content {
    padding-bottom: 20px;
  }

  h1 {
    font-size: clamp(40px, 11vw, 60px);
    letter-spacing: -0.04em;
    margin-bottom: 20px;
  }

  h2 {
    font-size: clamp(32px, 9vw, 48px);
    letter-spacing: -0.035em;
    margin-bottom: 20px;
  }

  .hero h1 {
    max-width: 100%;
  }

  .hero-subtitle {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 26px;
  }

  .hero-actions {
    width: 100%;
    margin-bottom: 22px;
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .button {
    width: 100%;
    max-width: 360px;
    min-height: 52px;
    font-size: 15px;
  }

  .hero-actions .button.ghost {
    display: none;
  }

  .hero-points {
    gap: 14px;
    font-size: 12px;
  }

  .hero-visual {
    width: min(380px, 84vw);
    margin: 0 auto;
  }

  .section {
    padding: 64px 18px;
  }

  .section-label {
    font-size: 11px;
    letter-spacing: 0.12em;
  }

  .thesis-body p,
  .pain-body p {
    font-size: 18px;
  }

  .lead {
    font-size: 17px;
  }

  .carousel-shell {
    grid-template-columns: 1fr;
    max-width: min(calc(100% - 96px), 306px);
    overflow: visible;
  }

  .carousel-control {
    position: absolute;
    top: 50%;
    z-index: 4;
    width: 36px;
    height: 50px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--green);
    font-size: 38px;
    line-height: 1;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.82);
  }

  .carousel-control:hover {
    background: transparent;
  }

  .carousel-control.prev {
    left: 0;
    transform: translate(-125%, -50%);
  }

  .carousel-control.next {
    right: 0;
    transform: translate(125%, -50%);
  }

  .sales-carousel {
    width: 100%;
    border-radius: 12px;
  }

  .swipe-hint {
    display: block;
  }

  .carousel-dots {
    gap: 6px;
    margin-top: 14px;
  }

  .carousel-dots button {
    width: 22px;
    height: 4px;
  }

  .demo-cta {
    margin-top: 24px;
  }

  .demo-cta .button,
  .how-cta .button,
  .final-cta .button {
    width: min(100%, 320px);
  }

  .how-step {
    padding: 24px 22px 26px;
  }

  .how-step h3 {
    font-size: 20px;
  }

  .how-cta {
    margin-top: 28px;
  }

  .check-list li,
  .audience-list li {
    padding: 18px 18px 18px 40px;
    font-size: 16px;
  }

  .check-list li::before {
    top: 24px;
    width: 10px;
    height: 10px;
  }

  .audience-list li::before {
    top: 18px;
  }

  .price-box {
    padding: 30px 22px;
    border-radius: 18px;
  }

  .price-tag {
    gap: 6px 8px;
  }

  .price-amount {
    font-size: clamp(72px, 22vw, 110px);
  }

  .price-detail {
    font-size: 14px;
  }

  .price-line {
    font-size: 16px;
  }

  .faq-list summary {
    font-size: 17px;
  }

  .faq-list details p {
    font-size: 16px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .site-footer img {
    width: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}