:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-strong: #f4f4f4;
  --text: #121212;
  --muted: #4f4f4f;
  --border: rgba(18, 18, 18, 0.12);
  --border-strong: rgba(18, 18, 18, 0.24);
  --shadow: 0 18px 40px rgba(18, 18, 18, 0.05);
  --radius-lg: 28px;
  --container: min(1120px, calc(100vw - 32px));
  --transition: 220ms ease;
  --gradient-pointer-x: 52%;
  --gradient-pointer-y: 50%;
  --gradient-scroll-shift: 0px;
  --bg-gradient-x: 50%;
  --bg-gradient-y: 16%;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 18, 18, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 18, 18, 0.028) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 92%);
}

body::after {
  content: "";
  position: fixed;
  inset: -14vh -10vw auto;
  height: 88vh;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at var(--bg-gradient-x) var(--bg-gradient-y),
      rgba(255, 191, 31, 0.2) 0%,
      rgba(255, 132, 43, 0.16) 18%,
      rgba(255, 75, 99, 0.13) 34%,
      rgba(244, 27, 161, 0.12) 50%,
      rgba(138, 44, 255, 0.12) 66%,
      rgba(255, 255, 255, 0) 78%);
  filter: blur(26px);
  opacity: 0.95;
  transform: translate3d(0, 0, 0);
}

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

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

button,
input {
  font: inherit;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  padding: 48px 0;
}


.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(18, 18, 18, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: var(--text);
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 16px 0 0 rgba(18, 18, 18, 0.24);
}

.nav-cta,
.sticky-cta,
.lead-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  background: var(--text);
  color: #fff;
  transition:
    transform var(--transition),
    opacity var(--transition),
    box-shadow var(--transition),
    background-color var(--transition);
}

.nav-cta {
  min-height: 46px;
  padding: 0 18px;
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-cta:hover,
.sticky-cta:hover,
.lead-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(18, 18, 18, 0.16);
}

.sticky-cta {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 25;
  min-height: 52px;
  padding: 0 18px;
  font-size: 0.95rem;
  font-weight: 700;
}

.hero {
  padding-top: 32px;
}

.hero-video-shell {
  margin-bottom: 80px;
}

.hero-grid {
  display: grid;
  gap: 28px;
}

.hero-main {
  display: grid;
  gap: 18px;
}

.hero-points-shell {
  margin-top: 24px;
}

.hero-points {
  display: grid;
  gap: 14px;
}

.hero-form-card {
  margin-top: 6px;
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

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

h1,
h2 {
  letter-spacing: -0.06em;
  line-height: 0.98;
}

h1 {
  max-width: 12ch;
  margin-bottom: 18px;
  font-size: clamp(3rem, 10vw, 4.8rem);
}

h2 {
  max-width: 14ch;
  margin-bottom: 18px;
  font-size: clamp(2rem, 6.2vw, 4rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  letter-spacing: -0.04em;
}

.hero-text,
.card-text,
.section-intro>p:last-child,
.feature-card p,
.info-card p,
.benefit-item p,
.authority-copy p,
.comparison-column li,
.video-help {
  color: var(--muted);
  font-size: 1rem;
}

.hero-text {
  max-width: 60ch;
  margin-bottom: 0;
  font-size: 1.08rem;
}

.gradient-ink {
  color: #ff4b63;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .gradient-ink {
    background-image: linear-gradient(112deg,
        #ffbf1f 0%,
        #ff842b 22%,
        #ff4b63 48%,
        #f41ba1 72%,
        #8a2cff 100%);
    background-size: 180% 180%;
    background-position:
      var(--gradient-pointer-x) calc(var(--gradient-pointer-y) + var(--gradient-scroll-shift));
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    will-change: background-position;
    transition: background-position 160ms ease-out;
  }
}

.point,
.info-card,
.feature-card,
.comparison-column,
.benefits-shell,
.form-card,
.final-shell {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.point {
  min-height: 142px;
  padding: 24px 28px;
  border-radius: 30px;
  box-shadow: 0 20px 38px rgba(18, 18, 18, 0.04);
}

.point strong,
.benefit-item strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.08rem;
  letter-spacing: -0.03em;
}

.point span {
  display: block;
  font-size: 1rem;
  color: #303030;
}

.form-card {
  padding: 28px;
}

.card-label {
  margin-bottom: 10px;
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.form-card h2 {
  max-width: 12ch;
  margin-bottom: 14px;
  font-size: clamp(1.9rem, 6vw, 3rem);
}

.lead-form {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.lead-form input {
  min-height: 56px;
  padding: 0 18px;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  background: #ffffff;
  color: var(--text);
  outline: none;
  transition:
    border-color var(--transition),
    transform var(--transition),
    background-color var(--transition);
}

.lead-form input::placeholder {
  color: rgba(18, 18, 18, 0.42);
}

.lead-form input:focus {
  transform: translateY(-1px);
  border-color: var(--text);
  background: #fff;
}

.lead-form button {
  min-height: 58px;
  padding: 0 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  cursor: pointer;
}

.lead-form button:disabled {
  cursor: progress;
  opacity: 0.78;
}

.microcopy,
.form-message,
.video-help {
  margin: 0;
  font-size: 0.92rem;
}

.microcopy {
  color: var(--muted);
}

.form-message {
  min-height: 1.4em;
  font-weight: 600;
}


.form-message.is-error,
.video-help.is-error {
  color: #8b1010;
}

.form-message.is-success,
.video-help.is-success {
  color: #0d5b32;
}

.video-card {
  display: grid;
  gap: 20px;
  justify-items: center;
}

.video-gate {
  position: relative;
  width: 100%;
  max-width: 1180px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 0;
  border-radius: 32px;
  background: #121212;
  color: #ffffff;
  cursor: pointer;
  box-shadow: 0 30px 65px rgba(18, 18, 18, 0.16);
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.video-gate:hover,
.video-gate:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 34px 78px rgba(18, 18, 18, 0.2);
}

.video-gate:focus-visible {
  outline: 3px solid rgba(18, 18, 18, 0.16);
  outline-offset: 4px;
}

.video-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.video-poster {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 18px;
  min-height: 100%;
  padding: clamp(48px, 7vw, 90px) clamp(24px, 4vw, 52px);
  text-align: center;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.video-poster.has-thumbnail {
  position: relative;
}

.video-poster.has-thumbnail > * {
  position: relative;
  z-index: 1;
}

.video-poster strong {
  max-width: 9.6ch;
  font-size: clamp(2.2rem, 5vw, 4.3rem);
  letter-spacing: -0.07em;
  line-height: 0.94;
}

.video-poster span:last-child {
  max-width: 28ch;
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  color: rgba(255, 255, 255, 0.74);
}

.youtube-play-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(84px, 10vw, 108px);
  height: clamp(60px, 7vw, 76px);
  border-radius: 18px;
  background: rgba(255, 0, 0, 0.92);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.youtube-play-triangle {
  width: 0;
  height: 0;
  margin-left: 5px;
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  border-left: 22px solid #ffffff;
}

.video-gate.is-unlocked {
  background: #000000;
}

.video-gate.is-empty .video-poster span:last-child {
  color: rgba(255, 255, 255, 0.68);
}

.video-frame,
.video-frame iframe {
  width: 100%;
  height: 100%;
  min-height: 100%;
  border: 0;
}

.video-help {
  width: 100%;
  max-width: 1180px;
  text-align: left;
}

.learning-visual-shell {
  margin-bottom: 28px;
}

.learning-visual {
  display: grid;
  gap: 16px;
}

.learning-visual-card {
  min-height: 180px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 32px;
  background:
    linear-gradient(135deg, #ffffff 0%, #f4f4f4 100%);
  box-shadow: 0 20px 38px rgba(18, 18, 18, 0.05);
}

.learning-visual-card-dark {
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.14), transparent 28%),
    #121212;
}

.learning-visual-card-light {
  background:
    linear-gradient(135deg, #f7f7f7 0%, #ececec 100%);
}

.learning-line,
.learning-dot {
  display: inline-block;
}

.learning-line {
  width: 100%;
  height: 14px;
  border-radius: 999px;
  background: rgba(18, 18, 18, 0.14);
  margin-bottom: 14px;
}

.learning-line.short {
  width: 60%;
}

.learning-dot {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(18, 18, 18, 0.14);
}

.learning-dot.large {
  width: 88px;
  height: 88px;
  margin-bottom: 18px;
}

.learning-visual-card-dark .learning-line,
.learning-visual-card-dark .learning-dot {
  background: rgba(255, 255, 255, 0.22);
}

.section-intro {
  margin-bottom: 36px;
}

.section-intro h2 {
  max-width: 13ch;
}

.section-intro-center {
  max-width: 980px;
  text-align: center;
}

.section-intro-center h2,
.section-intro-center p {
  max-width: none;
}

.cards-grid {
  display: grid;
  gap: 18px;
}

.info-card,
.feature-card {
  padding: 24px;
  transition:
    transform var(--transition),
    border-color var(--transition),
    background-color var(--transition);
}

.info-card:hover,
.feature-card:hover,
.comparison-column:hover {
  transform: translateY(-4px);
  border-color: rgba(18, 18, 18, 0.25);
}

.card-index {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.split-section {
  display: grid;
  gap: 22px;
}

.comparison {
  display: grid;
  gap: 18px;
}

.comparison-column {
  padding: 24px;
}

.comparison-column-dark {
  background: #121212;
  color: #ffffff;
}

.comparison-column-dark li,
.comparison-column-dark .comparison-label {
  color: rgba(255, 255, 255, 0.82);
}

.comparison-label {
  margin-bottom: 20px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.comparison-column ul {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.benefits-shell,
.final-shell {
  padding: 28px;
}

.final-shell {
  background: #121212;
  border-color: #121212;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.final-shell::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto;
  height: 72%;
  pointer-events: none;
  background:
    radial-gradient(circle at calc(var(--gradient-pointer-x) + 6%) 0%,
      rgba(255, 191, 31, 0.26) 0%,
      rgba(255, 75, 99, 0.22) 34%,
      rgba(138, 44, 255, 0.18) 56%,
      rgba(18, 18, 18, 0) 76%);
  opacity: 0.95;
}

.final-shell .eyebrow,
.final-shell .section-intro>p:last-child,
.final-shell .microcopy {
  color: rgba(255, 255, 255, 0.74);
}

.final-shell .form-message.is-success {
  color: #c8ffd6;
}

.final-shell .form-message.is-error {
  color: #ffd1d1;
}

.benefits-grid {
  display: grid;
  gap: 18px;
}

.benefit-item {
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.authority {
  display: grid;
  gap: 24px;
}

.authority-copy {
  display: grid;
  justify-content: center;
  text-align: center;
  gap: 10px;
}

.final-cta {
  padding-bottom: 64px;
}

.final-form {
  margin-top: 28px;
}

.site-footer {
  padding: 22px 0 48px;
}

.footer-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

.reveal-delay {
  transition-delay: 120ms;
}

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

@media (hover: none),
(pointer: coarse) {
  .gradient-ink {
    transition: background-position 260ms ease-out;
  }

  .youtube-play-chip {
    width: clamp(64px, 9vw, 108px);
    height: clamp(46px, 7vw, 76px);
  }

  .video-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    min-height: 25px;
    padding: 0 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }
}

@media (min-width: 720px) {
  .nav {
    justify-content: space-between;
  }

  .section {
    padding: 80px 0;
  }

  .hero-grid,
  .split-section,
  .authority,
  .final-shell {
    grid-template-columns: 1.02fr 0.98fr;
    align-items: start;
  }

  .hero-points,
  .learning-visual {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .cards-grid.two-up,
  .benefits-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .form-card,
  .benefits-shell,
  .final-shell {
    padding: 34px;
  }

  .sticky-cta {
    right: 24px;
    bottom: 24px;
  }
}

@media (min-width: 1100px) {
  .hero {
    padding-top: 78px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.86fr);
    gap: 40px;
  }

  .section-intro {
    max-width: 62ch;
  }

  .section-intro-center {
    max-width: 980px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

}