/* Matematizar landing page — static, host-ready CSS */

:root {
  --bg: #040812;
  --bg-2: #061321;
  --bg-3: #0a1b31;
  --surface: rgba(14, 22, 38, 0.72);
  --surface-strong: rgba(17, 27, 47, 0.92);
  --surface-soft: rgba(20, 34, 58, 0.56);
  --line: rgba(130, 174, 222, 0.18);
  --line-strong: rgba(44, 217, 255, 0.44);
  --text: #f3f8ff;
  --muted: #a8b6ca;
  --muted-2: #76859a;
  --blue: #198bff;
  --blue-2: #3bbcff;
  --cyan: #28d8ea;
  --green: #22d38f;
  --gold: #ffc461;
  --violet: #9b6cff;
  --danger: #ff5d7d;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
  --radius: 18px;
  --radius-lg: 24px;
  --max: 1180px;
  --nav-h: 78px;
  --section-gap: 92px;
  --section-pad-y: calc(var(--section-gap) / 2);
  --reveal-distance: 72px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: #040812;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 22px);
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  max-width: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Inter, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 7%, rgba(36, 165, 255, .20), transparent 32rem),
    radial-gradient(circle at 82% 12%, rgba(40, 216, 234, .16), transparent 30rem),
    radial-gradient(circle at 50% 52%, rgba(48, 82, 255, .10), transparent 36rem),
    linear-gradient(180deg, #030711 0%, #061120 40%, #040812 100%);
  overflow-x: hidden;
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at 50% 10%, black 0%, transparent 75%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 8, 18, 0) 0%, rgba(4, 8, 18, .48) 100%);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.section-pad {
  padding: var(--section-pad-y) 0;
  position: relative;
}

.skip-link {
  position: fixed;
  left: 18px;
  top: 18px;
  transform: translateY(-140%);
  z-index: 999;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--cyan);
  color: #04101d;
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(4, 8, 18, .72);
  backdrop-filter: blur(22px) saturate(150%);
  border-bottom-color: rgba(148, 185, 230, .15);
}

.nav {
  display: grid;
  grid-template-columns: 230px 1fr auto;
  align-items: center;
  gap: 26px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: var(--text);
  font-weight: 850;
  letter-spacing: 0;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
}

.brand span {
  font-size: 1.02rem;
}

.nav-menu {
  display: flex;
  justify-content: center;
  gap: 34px;
  font-size: 14px;
  font-weight: 650;
  color: rgba(239, 247, 255, .78);
}

.nav-menu a {
  transition: color .2s var(--ease);
}

.nav-menu a:hover {
  color: #fff;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  color: #05111f;
  font-size: 14px;
  font-weight: 850;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 12px 30px rgba(25, 139, 255, .35), inset 0 1px 0 rgba(255, 255, 255, .38);
}

.nav-toggle {
  display: none;
}

/* General typography */
.eyebrow,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  padding: 8px 12px;
  width: fit-content;
  border: 1px solid rgba(44, 217, 255, .22);
  border-radius: 999px;
  background: rgba(24, 139, 255, .10);
  color: #87e8ff;
  font-weight: 760;
  font-size: 13px;
  letter-spacing: 0;
}

.tag {
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 11px;
}

.eyebrow-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 22px rgba(44, 217, 255, .95);
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 5.2vw, 4.75rem);
  line-height: .96;
  letter-spacing: 0;
  max-width: 680px;
}

h1 span {
  color: transparent;
  background: linear-gradient(135deg, #e9f6ff 0%, #47c7ff 38%, #178bff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

h2 {
  font-size: clamp(2.2rem, 4.2vw, 4.7rem);
  line-height: .98;
  letter-spacing: 0;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.18rem;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-lead,
.section-heading p,
.hero-subtitle {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  max-width: 700px;
}

.section-heading.center {
  text-align: center;
  display: grid;
  justify-items: center;
  margin-bottom: 42px;
}

.section-heading:not(.center) p:not(.tag) {
  margin-bottom: 28px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 15px;
  font-weight: 850;
  letter-spacing: 0;
  white-space: nowrap;
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  border: 1px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #04111f;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 18px 44px rgba(25, 139, 255, .34), inset 0 1px 0 rgba(255, 255, 255, .42);
}

.btn-primary:hover {
  box-shadow: 0 24px 58px rgba(25, 139, 255, .44), inset 0 1px 0 rgba(255, 255, 255, .42);
}

.btn-secondary {
  color: #eaf6ff;
  border-color: rgba(169, 202, 242, .28);
  background: rgba(255, 255, 255, .035);
}

.btn-secondary:hover {
  border-color: rgba(44, 217, 255, .58);
  background: rgba(40, 216, 234, .07);
}

/* Shared section components */
.check-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  color: #cfe0f2;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #061120;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 0 20px rgba(44, 217, 255, .22);
}

/* Hero */
.hero {
  min-height: auto;
  display: grid;
  align-items: center;
  padding-top: 54px;
  padding-bottom: 150px;
}

.hero-bg {
  position: absolute;
  inset: -80px 0 auto;
  height: 920px;
  background:
    radial-gradient(circle at 70% 22%, rgba(27, 137, 255, .20), transparent 34rem),
    radial-gradient(circle at 92% 54%, rgba(40, 216, 234, .10), transparent 22rem);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(560px, 1.1fr);
  gap: 44px;
  align-items: center;
  position: relative;
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.hero-mobile-brand,
.hero-mobile-note {
  display: none;
}

.hero-subtitle {
  max-width: 580px;
  margin-bottom: 28px;
}

.hero-points {
  display: grid;
  gap: 8px;
  max-width: 590px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  color: #cfe0f2;
  font-size: .98rem;
}

.hero-points li {
  position: relative;
  padding-left: 22px;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(44, 217, 255, .55);
}

.availability {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  margin-bottom: 25px;
  font-size: .98rem;
}

.availability-icons {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #dff8ff;
}

.availability-icon {
  width: 17px;
  height: 17px;
  opacity: .92;
  filter: invert(1) drop-shadow(0 0 12px rgba(44, 217, 255, .28));
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}

.free-note {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #c6d3e4;
  margin: 0;
}

.free-note.hero-mobile-note {
  display: none;
}

.free-note strong {
  color: #ffffff;
}

/* Problem and track */
.problem-section,
.friction-section,
.diagnostic-section,
.authority-section,
.faq-section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
}

.problem-grid,
.authority-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 46px;
  align-items: start;
}

.problem-copy,
.authority-copy {
  color: #c9d7e8;
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
}

.problem-copy p,
.authority-copy p {
  margin-bottom: 18px;
}

.track-section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
}

.track-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(320px, .68fr);
  gap: 42px;
  align-items: center;
}

.track-panel {
  padding: 28px;
  border: 1px solid rgba(130, 174, 222, .18);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(18, 32, 54, .78), rgba(8, 16, 29, .76));
  box-shadow: 0 26px 70px rgba(0, 0, 0, .30);
}

.track-stat {
  display: grid;
  gap: 4px;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(130, 174, 222, .14);
}

.track-stat strong {
  color: #ffffff;
  font-size: clamp(3.4rem, 7vw, 6rem);
  line-height: .9;
  font-weight: 950;
}

.track-stat span {
  color: #8adfff;
  font-weight: 800;
}

/* Friction */
.friction-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.friction-card {
  padding: 24px;
  border: 1px solid rgba(130, 174, 222, .16);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 80% 0%, rgba(44, 217, 255, .10), transparent 15rem),
    rgba(10, 18, 32, .72);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .24);
}

.friction-card h3 {
  margin-bottom: 12px;
}

.friction-card p {
  margin: 0;
  color: var(--muted);
  font-size: .96rem;
}

/* Escada */
.section-card-wrap {
  padding-top: var(--section-pad-y);
}

@media (min-width: 861px) {
  .section-card-wrap {
    margin-top: 0;
  }
}

.escada-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 400px) 1fr;
  gap: 30px;
  align-items: center;
  border: 1px solid rgba(44, 217, 255, .20);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 58px);
  background:
    radial-gradient(circle at 85% 0%, rgba(40, 216, 234, .16), transparent 33rem),
    radial-gradient(circle at 35% 90%, rgba(27, 137, 255, .13), transparent 28rem),
    linear-gradient(180deg, rgba(19, 36, 62, .78), rgba(7, 14, 26, .74));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.escada-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, .12), transparent 26%, transparent 68%, rgba(40, 216, 234, .10));
  opacity: .5;
}

.escada-copy {
  position: relative;
  z-index: 2;
}

.escada-copy .section-lead {
  color: #f2f8ff;
  font-weight: 800;
  font-size: clamp(1.5rem, 2.4vw, 2.25rem);
  line-height: 1.1;
  margin-bottom: 16px;
}

.escada-copy p:not(.tag):not(.section-lead) {
  color: var(--muted);
  font-size: 1.02rem;
}

.escada-illustration {
  position: relative;
  z-index: 2;
  margin: 0;
  align-self: center;
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(5, 11, 21, .28);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .30);
}

.escada-illustration picture {
  display: block;
}

.escada-illustration img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
}

/* Method */
.method-section {
  padding-top: var(--section-pad-y);
}

.method-section .section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.cycle-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.cycle-strip span {
  display: grid;
  place-items: center;
  min-height: 74px;
  padding: 12px;
  border: 1px solid rgba(44, 217, 255, .24);
  border-radius: 16px;
  color: #e7f6ff;
  font-weight: 850;
  text-align: center;
  background: rgba(18, 33, 56, .72);
}

.ladder-example {
  display: grid;
  grid-template-columns: minmax(230px, .52fr) 1fr;
  gap: 24px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid rgba(130, 174, 222, .18);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 95% 8%, rgba(25, 139, 255, .14), transparent 24rem),
    rgba(8, 16, 29, .76);
}

.ladder-example h3 {
  font-size: clamp(1.5rem, 2.6vw, 2.35rem);
}

.ladder-example ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ladder;
}

.ladder-example li {
  position: relative;
  min-height: 68px;
  padding: 14px 16px 14px 58px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  background: rgba(255, 255, 255, .04);
  counter-increment: ladder;
}

.ladder-example li::before {
  content: counter(ladder);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #061120;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
}

.ladder-example strong,
.ladder-example span {
  display: block;
}

.ladder-example span {
  color: var(--muted);
  font-size: .94rem;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.feature-card {
  min-height: 540px;
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 24px;
  background:
    radial-gradient(circle at 70% 0%, rgba(25, 139, 255, .11), transparent 18rem),
    rgba(11, 18, 32, .72);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .04);
  overflow: hidden;
}

.study-grid .feature-card {
  min-height: 500px;
}

.ai-mini-card {
  margin-top: 18px;
  padding: 22px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(23, 48, 82, .72), rgba(5, 11, 21, .68));
  border: 1px solid rgba(44, 217, 255, .20);
}

.ai-mini-card span {
  display: block;
  color: #8adfff;
  font-weight: 750;
  font-size: .9rem;
  margin-bottom: 16px;
}

.ai-mini-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.22rem;
}

.ai-mini-card p {
  color: var(--muted);
  margin: 0;
}

.feature-top {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  margin-bottom: 22px;
}

.feature-top h3 {
  margin-bottom: 7px;
}

.feature-top p {
  margin: 0;
  color: var(--muted);
  font-size: .98rem;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  font-size: 22px;
  font-weight: 900;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .06);
}

.feature-icon-blue {
  color: #52c8ff;
  box-shadow: 0 0 32px rgba(25, 139, 255, .16);
}

.feature-icon-green {
  color: #32eaa3;
  box-shadow: 0 0 32px rgba(34, 211, 143, .16);
}

.feature-icon-gold {
  color: #ffc461;
  box-shadow: 0 0 32px rgba(255, 196, 97, .16);
}

.feature-icon-violet {
  color: #c18cff;
  box-shadow: 0 0 32px rgba(155, 108, 255, .16);
}

.feature-phone {
  position: relative;
  width: min(188px, 70%);
  aspect-ratio: 648 / 1440;
  height: auto;
  margin: 8px auto 0;
  padding: 8px;
  border-radius: 34px;
  background: #050a12;
  box-shadow: 0 22px 60px rgba(0, 0, 0, .42), 0 0 0 1px rgba(255, 255, 255, .12);
  overflow: hidden;
}

.feature-phone::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 50%;
  width: 68px;
  height: 17px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: #040812;
  z-index: 2;
}

.feature-phone img {
  width: 100%;
  height: 100%;
  border-radius: 27px;
  object-fit: cover;
  object-position: top center;
}

/* Diagnostic */
.diagnostic-grid {
  display: grid;
  grid-template-columns: .74fr 1.26fr;
  gap: 40px;
  align-items: center;
}

.analytics-panel {
  padding: 26px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 78% 20%, rgba(40, 216, 234, .13), transparent 20rem),
    rgba(8, 16, 29, .82);
  border: 1px solid rgba(130, 174, 222, .18);
  box-shadow: var(--shadow);
}

.panel-header,
.metrics,
.analytics-body,
.chips {
  position: relative;
  z-index: 2;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
  color: #eef8ff;
  font-weight: 850;
}

.panel-header small {
  color: var(--muted-2);
  font-weight: 650;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.metrics div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .08);
}

.metrics span {
  display: block;
  color: var(--muted-2);
  font-size: .78rem;
  margin-bottom: 4px;
}

.metrics strong {
  font-size: 1.28rem;
}

.analytics-body {
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  gap: 14px;
}

.bar-panel,
.donut-panel {
  padding: 20px;
  border-radius: 20px;
  background: rgba(0, 0, 0, .18);
  border: 1px solid rgba(255, 255, 255, .08);
}

.bar-panel h3,
.donut-panel h3 {
  font-size: 1rem;
  margin-bottom: 18px;
}

.bar-row {
  display: grid;
  grid-template-columns: 140px 1fr 44px;
  gap: 12px;
  align-items: center;
  color: #cbd8e8;
  font-size: .9rem;
  margin-bottom: 13px;
}

.bar-row b {
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, .10);
}

.bar-row i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  box-shadow: 0 0 18px rgba(25, 139, 255, .35);
}

.bar-row strong {
  text-align: right;
  font-size: .86rem;
}

.donut-panel {
  display: grid;
  justify-items: center;
}

.donut {
  width: 146px;
  height: 146px;
  border-radius: 50%;
  background: conic-gradient(var(--cyan) 0 48%, var(--gold) 48% 73%, var(--blue) 73% 100%);
  position: relative;
  margin: 8px 0 20px;
}

.donut::before {
  content: "";
  position: absolute;
  inset: 28px;
  border-radius: inherit;
  background: #08101d;
}

.legend {
  display: grid;
  gap: 8px;
  justify-items: start;
  width: 100%;
  color: var(--muted);
  font-size: .85rem;
}

.legend span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend b {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-a {
  background: var(--cyan);
}

.legend-b {
  background: var(--gold);
}

.legend-c {
  background: var(--blue);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chips span {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(44, 217, 255, .18);
  background: rgba(25, 139, 255, .08);
  color: #c7edff;
  font-size: .84rem;
}

/* Access */
.access-section {
  padding-top: var(--section-pad-y);
}

.access-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 470px));
  justify-content: center;
  gap: 24px;
}

.access-card {
  position: relative;
  padding: 34px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(17, 31, 53, .80), rgba(8, 16, 29, .78));
  border: 1px solid rgba(130, 174, 222, .20);
  box-shadow: 0 26px 70px rgba(0, 0, 0, .30);
}

.access-card--featured {
  border-color: rgba(44, 217, 255, .60);
  box-shadow: 0 0 0 1px rgba(44, 217, 255, .14), 0 32px 86px rgba(25, 139, 255, .16);
}

.best-value {
  position: absolute;
  top: -14px;
  right: 28px;
  margin: 0;
  padding: 8px 14px;
  border-radius: 999px;
  color: #04101d;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  font-size: .78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.access-price {
  margin: -8px 0 22px;
  color: #dcecff;
  font-size: 1.03rem;
}

.access-price strong {
  color: #fff;
}

.access-card h3 {
  color: #bfefff;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  margin-bottom: 22px;
}

.access-card ul {
  display: grid;
  gap: 13px;
  list-style: none;
  padding: 0;
  margin: 0;
  color: #d2dfed;
}

.access-card li {
  position: relative;
  padding-left: 29px;
}

.access-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 900;
}

/* Proof and FAQ */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.proof-grid div,
.faq-item {
  border: 1px solid rgba(130, 174, 222, .16);
  border-radius: var(--radius);
  background: rgba(10, 18, 32, .70);
}

.proof-grid div {
  padding: 18px;
}

.proof-grid strong,
.proof-grid span {
  display: block;
}

.proof-grid strong {
  color: #8adfff;
  font-size: 1.45rem;
  line-height: 1;
  margin-bottom: 8px;
}

.proof-grid span {
  color: var(--muted);
  font-size: .9rem;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.faq-item {
  padding: 24px;
}

.faq-item h3 {
  margin-bottom: 10px;
}

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

/* Final CTA and footer */
.final-cta {
  padding-top: var(--section-pad-y);
}

.final-cta-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: clamp(28px, 4vw, 48px);
  border-radius: 30px;
  border: 1px solid rgba(44, 217, 255, .38);
  background:
    radial-gradient(circle at 100% 0%, rgba(44, 217, 255, .20), transparent 26rem),
    radial-gradient(circle at 0% 100%, rgba(25, 139, 255, .16), transparent 26rem),
    rgba(12, 22, 39, .82);
  box-shadow: 0 0 0 1px rgba(25, 139, 255, .10), 0 36px 100px rgba(0, 0, 0, .40);
  overflow: hidden;
}

.final-cta-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 28px var(--cyan);
}

.final-cta h2 {
  max-width: 650px;
  margin-bottom: 14px;
}

.final-cta p:not(.tag) {
  max-width: 580px;
  color: var(--muted);
  font-size: 1.18rem;
}

.store-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.store-button {
  min-width: 218px;
  display: inline-flex;
  align-items: center;
  gap: 13px;
  padding: 16px 18px;
  border-radius: 16px;
  color: #ecf8ff;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(180, 216, 255, .22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07);
  transition: transform .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.store-button:hover {
  transform: translateY(-2px);
  border-color: rgba(44, 217, 255, .54);
  background: rgba(44, 217, 255, .08);
}

.store-button img {
  width: 25px;
  height: 25px;
  filter: invert(1);
}

.store-button span {
  display: grid;
  font-size: .9rem;
  line-height: 1.1;
  color: #b7c8da;
}

.store-button strong {
  color: #ffffff;
  font-size: 1.05rem;
}

.footer {
  padding: 64px 0 34px;
  border-top: 1px solid rgba(130, 174, 222, .12);
  background: rgba(0, 0, 0, .22);
}

.footer-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 50px;
  align-items: start;
}

.footer-brand img {
  width: 46px;
  height: 46px;
}

.footer p {
  color: var(--muted);
  max-width: 360px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-links h3 {
  font-size: .92rem;
  color: #f4f9ff;
  margin-bottom: 12px;
}

.footer-links a {
  display: block;
  color: var(--muted);
  margin: 9px 0;
  font-size: .94rem;
  transition: color .2s var(--ease);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 44px;
  padding-top: 22px;
  color: var(--muted-2);
  font-size: .9rem;
  border-top: 1px solid rgba(130, 174, 222, .10);
}

/* Animation */
[data-animate] {
  opacity: 0;
  transform: translateY(var(--reveal-distance));
  transition: opacity .7s ease-out, transform .7s ease-out;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.skip-reveal-animations [data-animate] {
  opacity: 1;
  transform: none;
  transition: none;
}

/* Responsive */
@media (max-width: 1120px) {

  .hero-grid,
  .problem-grid,
  .track-grid,
  .diagnostic-grid,
  .authority-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .escada-card,
  .ladder-example {
    grid-template-columns: 1fr;
  }

  .final-cta-card {
    grid-template-columns: 1fr;
  }

  .store-buttons {
    justify-content: flex-start;
  }
}

@media (max-width: 860px) {
  :root {
    --nav-h: 72px;
    --section-gap: 72px;
  }

  .hero-grid {
    gap: 10px;
  }

  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .section-pad {
    padding: var(--section-pad-y) 0;
  }

  .nav {
    grid-template-columns: 1fr auto auto;
    gap: 12px;
  }

  .brand img {
    width: 42px;
    height: 42px;
  }

  .brand span {
    font-size: .98rem;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(180, 216, 255, .20);
    border-radius: 13px;
    color: #fff;
    background: rgba(255, 255, 255, .04);
  }

  .nav-toggle span:not(.sr-only) {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: #fff;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-h);
    left: 14px;
    right: 14px;
    display: grid;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(180, 216, 255, .18);
    border-radius: 22px;
    background: rgba(6, 13, 24, .94);
    backdrop-filter: blur(22px);
    box-shadow: 0 26px 70px rgba(0, 0, 0, .42);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity .25s var(--ease), transform .25s var(--ease);
  }

  .nav-menu.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-menu a {
    padding: 15px 14px;
    border-radius: 14px;
  }

  .nav-menu a:hover {
    background: rgba(44, 217, 255, .08);
  }

  .nav-cta {
    min-height: 38px;
    padding-inline: 14px;
  }

  .hero {
    min-height: auto;
    padding-top: 46px;
    padding-bottom: 72px;
  }

  h1 {
    max-width: 760px;
    font-size: clamp(3.05rem, 10vw, 5rem);
  }

  .features-grid,
  .access-grid,
  .faq-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .analytics-body {
    grid-template-columns: 1fr;
  }

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

  .escada-card {
    overflow: visible;
  }

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

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

@media (min-width: 601px) and (max-width: 860px) {
  .hero {
    padding-bottom: 20px;
  }
}

@media (max-width: 600px) {
  :root {
    --section-gap: 56px;
    --reveal-distance: 56px;
  }

  .site-header {
    display: none;
  }

  html {
    scroll-padding-top: 16px;
  }

  .section-pad {
    padding: var(--section-pad-y) 0;
  }

  .nav-cta {
    display: none;
  }

  .nav {
    grid-template-columns: 1fr auto;
  }

  .hero {
    overflow: visible;
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .hero .eyebrow {
    display: none;
  }

  .hero-mobile-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: #fff;
    font-weight: 850;
    font-size: 1.03rem;
  }

  .hero-mobile-brand img {
    width: 34px;
    height: 34px;
    border-radius: 10px;
  }

  .hero-copy {
    width: 100%;
    max-width: 430px;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(1.88rem, 8.55vw, 3.05rem);
    line-height: .98;
    letter-spacing: 0;
  }

  .hero-subtitle {
    margin-bottom: 22px;
  }

  .hero-points {
    margin-bottom: 18px;
    font-size: .92rem;
  }

  .availability {
    align-items: center;
    margin-bottom: 18px;
    font-size: .94rem;
  }

  .hero-actions {
    display: grid;
  }

  .hero .btn-secondary,
  .hero-copy>.free-note,
  .hero-mobile-note {
    display: none;
  }

  .section-heading.center {
    text-align: left;
    justify-items: start;
  }

  .btn {
    width: 100%;
  }

  .feature-card {
    min-height: auto;
    padding: 20px;
  }

  .study-grid .feature-card {
    min-height: auto;
  }

  .feature-top {
    grid-template-columns: 46px 1fr;
  }

  .feature-icon {
    width: 46px;
    height: 46px;
  }

  .feature-phone {
    width: min(300px, 80%);
    margin-top: 2px;
  }

  .friction-grid,
  .cycle-strip,
  .proof-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .cycle-strip span {
    min-height: 58px;
  }

  .ladder-example {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .metrics,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 108px 1fr 40px;
    font-size: .8rem;
  }

  .access-grid {
    gap: 18px;
  }

  .access-card,
  .analytics-panel {
    padding: 22px;
  }

  .store-buttons,
  .store-button {
    width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}