:root {
  --bg: #fff;
  --surface: #f6f6f8;
  --surface-2: #eeeef3;
  --ink: #0f172a;
  --muted: #667085;
  --line: #d9dce4;
  --purple: #7c3aed;
  --purple-dark: #5b21b6;
  --radius: 22px;
  --max: 1180px;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}

/* =========================================================
   Reset / Base
   ========================================================= */

* {
  box-sizing: border-box;
  user-select: none;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
a {
  touch-action: manipulation;
}

button {
  font: inherit;
}

/* =========================================================
   Layout
   ========================================================= */

.container {
  width: min(calc(100% - 36px), var(--max));
  margin-inline: auto;
}

.section {
  padding: 76px 0;
}

/* =========================================================
   Accessibility
   ========================================================= */

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 9999;
  padding: 10px 14px;
  background: #000;
  color: #fff;
  border-radius: 10px;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: none;
}

.button:focus-visible,
.text-link:focus-visible,
.desktop-nav a:focus-visible,
.mobile-nav a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.35);
  outline-offset: 4px;
}

/* =========================================================
   Header / Navigation
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(217, 220, 228, 0.75);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand img {
  width: 118px;
  height: auto;
}

.desktop-nav,
.desktop-cta {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-button,
.menu-button {
  min-width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.lang-button {
  font-size: 0.78rem;
  font-weight: 800;
}

.mobile-nav {
  padding: 8px 18px 20px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.mobile-nav a:not(.button) {
  display: block;
  padding: 13px 4px;
  font-weight: 650;
}

.mobile-nav .button {
  margin-top: 8px;
}

/* =========================================================
   Buttons
   ========================================================= */

.button {
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 750;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

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

.button svg,
.text-link svg {
  width: 18px;
}

.button-primary {
  background: var(--purple);
  color: #fff;
}

.button-primary:hover {
  background: var(--purple-dark);
}

.button-dark {
  background: #0b1020;
  color: #fff;
}

.button-light {
  background: #fff;
  color: #0f172a;
}

.button-outline-light {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff;
}

.button-small {
  min-height: 44px;
  padding: 0 16px;
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  padding-top: 56px;
  overflow: hidden;
}

.hero-title {
    pointer-events: none;
}

.hero-grid {
  display: grid;
  gap: 46px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--purple);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.split-heading h2,
.control-copy h2,
.brand-panel h2,
.final-panel h2 {
  margin: 0;
  line-height: 1.03;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.hero h1 {
  max-width: 870px;
  font-size: clamp(2.65rem, 10vw, 5.3rem);
}

.hero-lead {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
  margin-top: 30px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 750;
}

.hero-note {
  max-width: 560px;
  margin-top: 28px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-note svg {
  width: 19px;
  flex: none;
  margin-top: 2px;
}

.hero-visual {
  position: relative;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.visual-backdrop {
  position: absolute;
  width: 88%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #eee9ff;
  filter: blur(2px);
  opacity: 0.85;
}

.devices {
  position: relative;
  width: 118%;
  max-width: none;
  transform: translateX(-4%);
  filter: drop-shadow(0 30px 35px rgba(15, 23, 42, 0.13));
}

/* =========================================================
   Problem / Benefits
   ========================================================= */

.problem {
  background: #0c1120;
  color: #fff;
}

.split-heading {
  display: grid;
  gap: 20px;
}

.split-heading .section-kicker {
  color: #a78bfa;
}

.split-heading h2,
.section-heading h2,
.control-copy h2,
.brand-panel h2 {
  font-size: clamp(2rem, 7vw, 3.9rem);
}

.split-heading p:not(.section-kicker) {
  max-width: 620px;
  color: #b7bfce;
  font-size: 1.06rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 50px;
  background: #303747;
  border: 1px solid #303747;
  border-radius: var(--radius);
}

.square-begin {
    border-radius: var(--radius) 0 0 var(--radius);
}

.square-end {
    border-radius: 0 var(--radius) var(--radius) 0;
}

.stat {
  padding: 28px;
  background: #0c1120;
}

.stat svg {
  width: 25px;
  height: 25px;
  margin-bottom: 32px;
  color: #a78bfa;
}

.stat strong {
  display: block;
  font-size: 1.18rem;
}

.stat p {
  margin: 7px 0 0;
  color: #9da6b6;
}

/* =========================================================
   How it works
   ========================================================= */

.section-heading {
  max-width: 820px;
  margin-bottom: 44px;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.step-number {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.step svg {
  width: 24px;
  margin-bottom: 14px;
  color: var(--purple);
}

.step h3 {
  margin: 0 0 6px;
  font-size: 1.2rem;
}

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

/* =========================================================
   Control / Dashboard
   ========================================================= */

.control {
  background: var(--surface);
}

.control-card {
  align-self: center;
}

.control-dashboard {
  width: 100%;
}

.control-dashboard-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  filter: drop-shadow(0 24px 40px rgba(15, 23, 42, 0.12));
}

.control-grid {
  display: grid;
  gap: 42px;
}

.control-copy > p:not(.section-kicker) {
  color: var(--muted);
  font-size: 1.06rem;
}

.check-list {
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 15px;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.check-list svg {
  width: 20px;
  flex: none;
  margin-top: 2px;
  color: var(--purple);
}

.control-card {
  align-self: center;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
}

/* =========================================================
   Audience
   ========================================================= */

.audience-grid {
  display: grid;
  gap: 12px;
}

.audience-item {
  min-height: 160px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.audience-item svg {
  width: 28px;
  color: var(--purple);
}

.audience-item h3 {
  margin: 28px 0 0;
  font-size: 1.1rem;
}

/* =========================================================
   Brand
   ========================================================= */

.brand-section {
  padding-top: 20px;
}

.brand-panel {
  padding: 34px;
  display: grid;
  align-items: center;
  gap: 28px;
  background: #f1edff;
  border-radius: 28px;
}

.brand-panel img {
  width: 82px;
  border-radius: 20px;
}

.brand-panel p:not(.section-kicker) {
  max-width: 680px;
  color: #4f5869;
}

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

.faq-grid {
  display: grid;
  gap: 20px;
}

.accordion {
  border-top: 1px solid var(--line);
}

details {
  border-bottom: 1px solid var(--line);
}

summary {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-weight: 750;
  list-style: none;
  cursor: pointer;
}

summary::-webkit-details-marker {
  display: none;
}

summary svg {
  width: 20px;
  transition: transform 0.2s ease;
}

details[open] summary svg {
  transform: rotate(45deg);
}

details p {
  max-width: 700px;
  margin: -6px 0 24px;
  color: var(--muted);
}

/* =========================================================
   Final CTA
   ========================================================= */

.final-cta {
  padding-top: 30px;
}

.final-panel {
  position: relative;
  overflow: hidden;
  padding: 38px 26px;
  background: #0c1120;
  color: #fff;
  border-radius: 30px;
}

.final-panel::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 280px;
  height: 280px;
  background: #6d28d9;
  border-radius: 50%;
  opacity: 0.2;
}

.final-panel img {
  position: relative;
  z-index: 1;
  width: 150px;
  margin-bottom: 34px;
}

.final-panel h2 {
  position: relative;
  z-index: 1;
  max-width: 900px;
  font-size: clamp(2.2rem, 9vw, 4.8rem);
}

.final-panel p {
  position: relative;
  z-index: 1;
  max-width: 600px;
  color: #b8c0cf;
  font-size: 1.06rem;
}

.final-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

/* =========================================================
   Footer
   ========================================================= */

.site-footer {
  padding: 48px 0 26px;
}

.footer-grid {
  display: grid;
  align-items: center;
  gap: 20px;
}

.footer-brand img {
  width: 125px;
}

.footer-grid p {
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  font-weight: 650;
}

.footer-links svg {
  width: 18px;
}

.footer-bottom {
  margin-top: 30px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.84rem;
  border-top: 1px solid var(--line);
}

/* =========================================================
   GSAP
   ========================================================= */

.reveal {
  will-change: transform, opacity;
}

/* =========================================================
   Demo selector modal
   ========================================================= */

.demo-modal,
.device-warning {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 18px;
}

.demo-modal[hidden],
.device-warning[hidden] {
  display: none;
}

.demo-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 12, 24, 0.64);
  backdrop-filter: blur(8px);
}

.demo-dialog,
.warning-dialog {
  position: relative;
  width: min(100%, 650px);
  padding: 30px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: 0 32px 90px rgba(15, 23, 42, 0.28);
}

.demo-dialog h2,
.warning-dialog h2 {
  margin: 0;
  font-size: clamp(1.8rem, 6vw, 2.7rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.demo-dialog > p:not(.section-kicker),
.warning-dialog p {
  margin: 14px 0 0;
  color: var(--muted);
}

.demo-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
}

.demo-options {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.demo-option {
  display: grid;
  grid-template-columns: 52px 1fr 20px;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.demo-option:hover {
  transform: translateY(-2px);
  border-color: #b9a2f8;
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.08);
}

.demo-option-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: #f1edff;
  color: var(--purple);
  border-radius: 14px;
}

.demo-option-icon svg {
  width: 24px;
}

.demo-option strong,
.demo-option small {
  display: block;
}

.demo-option strong {
  font-size: 1rem;
}

.demo-option small {
  margin-top: 3px;
  color: var(--muted);
  line-height: 1.45;
}

.demo-option > svg {
  width: 18px;
  color: var(--muted);
}

/* =========================================================
   Device warning
   ========================================================= */

.warning-dialog {
  width: min(100%, 500px);
  text-align: center;
}

.warning-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  background: #f1edff;
  color: var(--purple);
  border-radius: 18px;
}

.warning-icon svg {
  width: 29px;
  height: 29px;
}

.warning-actions {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.warning-cancel {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  cursor: pointer;
}

body.modal-open {
  overflow: hidden;
}

/* =========================================================
   Tablet — 700px+
   ========================================================= */

@media (min-width: 700px) {
  .container {
    width: min(calc(100% - 64px), var(--max));
  }

  .section {
    padding: 100px 0;
  }

  .hero-actions,
  .final-actions {
    flex-direction: row;
    align-items: center;
  }

  .hero-actions .text-link {
    justify-content: flex-start;
  }

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

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

  .brand-panel {
    grid-template-columns: 110px 1fr;
    padding: 50px;
  }

  .final-panel {
    padding: 60px;
  }

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

  .footer-grid p {
    margin: 0;
  }
}

/* =========================================================
   Demo modal — 600px+
   ========================================================= */

@media (min-width: 600px) {
  .demo-dialog {
    padding: 40px;
  }

  .demo-options {
    grid-template-columns: 1fr 1fr;
  }

  .demo-option {
    grid-template-columns: 52px 1fr;
    align-items: start;
  }

  .demo-option > svg {
    display: none;
  }

  .warning-dialog {
    padding: 40px;
  }

  .warning-actions {
    grid-template-columns: 1fr 1fr;
  }
}

/* =========================================================
   Desktop — 960px+
   ========================================================= */

@media (min-width: 960px) {
  .site-header .nav-wrap {
    min-height: 82px;
  }

  .brand img {
    width: 130px;
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 30px;
  }

  .desktop-nav a {
    color: #3f4756;
    font-size: 0.9rem;
    font-weight: 650;
  }

  .desktop-cta {
    display: inline-flex;
  }

  .menu-button {
    display: none;
  }

  .hero {
    padding: 90px 0 105px;
  }

  .hero-grid {
    grid-template-columns:
      minmax(0, 0.95fr)
      minmax(500px, 1.05fr);
    align-items: center;
    gap: 20px;
  }

  .hero h1 {
    font-size: clamp(3.5rem, 5.6vw, 5.25rem);
  }

  .hero-visual {
    min-height: 500px;
  }

  .devices {
    width: 122%;
    transform: translateX(0);
  }

  .split-heading {
    grid-template-columns: 0.72fr 1.28fr;
    align-items: start;
    gap: 80px;
  }

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

  .stat {
    min-height: 250px;
  }

  .steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
  }

  .step {
    min-height: 300px;
    padding: 26px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 0;
    border-right: 1px solid var(--line);
  }

  .step:last-child {
    border-right: 0;
  }

  .step-number {
    margin-bottom: 65px;
  }

  .control-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 80px;
  }

  .control-card {
    padding: 26px;
  }

  .mini-body {
    min-height: 370px;
  }

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

  .audience-item {
    min-height: 210px;
  }

  .faq-grid {
    grid-template-columns: 0.75fr 1.25fr;
    gap: 90px;
  }

  .final-panel {
    padding: 80px;
  }

  .final-panel img {
    width: 180px;
  }
}

/* =========================================================
   Reduced motion
   ========================================================= */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    will-change: auto;
  }

  .demo-option {
    transition: none;
  }
}