/* Variables */
:root {
  --color-bg: #070B14;
  --color-surface: #101827;
  --color-surface-hover: #162238;
  --color-primary: #8B5CF6;
  --color-primary-hover: #A78BFA;
  --color-primary-soft: rgba(139, 92, 246, 0.12);
  --color-primary-pale: #DDD6FE;
  --color-border: rgba(255, 255, 255, 0.12);
  --color-text: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-button-text: #FFFFFF;
  --container-width: 1180px;
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow-soft: 0 28px 90px rgba(0, 0, 0, 0.38);
  --shadow-glow: 0 0 0 1px rgba(139, 92, 246, 0.18), 0 24px 80px rgba(139, 92, 246, 0.24);
}

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

html {
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
}

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

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

/* Base */
body {
  min-height: 100vh;
  color: var(--color-text);
  background:
    radial-gradient(circle at 14% 0%, rgba(139, 92, 246, 0.24), transparent 34%),
    radial-gradient(circle at 84% 10%, rgba(196, 181, 253, 0.14), transparent 30%),
    radial-gradient(circle at 50% 58%, rgba(52, 211, 153, 0.07), transparent 34%),
    linear-gradient(180deg, #070B14 0%, #0B1020 46%, #070B14 100%);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  opacity: 0.34;
  pointer-events: none;
}

::selection {
  color: var(--color-text);
  background: rgba(139, 92, 246, 0.4);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(196, 181, 253, 0.9);
  outline-offset: 4px;
}

h1,
h2,
h3 {
  color: var(--color-text);
  line-height: 1.13;
}

p {
  color: var(--color-text-secondary);
}

p a,
.faq-item a {
  color: var(--color-primary-hover);
  font-weight: 700;
  transition: color 180ms ease;
}

p a:hover,
.faq-item a:hover {
  color: var(--color-primary-pale);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  color: var(--color-primary-pale);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

/* Layout */
.section {
  padding: 92px 0;
}

.section-muted {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: rgba(16, 24, 39, 0.48);
}

.section-heading {
  max-width: 800px;
  margin: 0 auto 36px;
  text-align: center;
}

.section-heading-left {
  margin: 0;
  text-align: left;
}

.section-heading h2,
.platform-card h2 {
  margin-top: 10px;
  font-size: 42px;
}

.section-heading p,
.platform-card p,
.text-stack p {
  margin-top: 14px;
  font-size: 18px;
}

.split-grid,
.platform-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: stretch;
}

.text-stack {
  display: grid;
  gap: 16px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(7, 11, 20, 0.86);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-link {
  flex: 0 0 auto;
}

.header-logo {
  width: 150px;
  height: auto;
}

.header-cta {
  flex: 0 0 auto;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.main-nav a {
  min-height: 40px;
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--color-text-secondary);
  transition: color 180ms ease, background-color 180ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-text);
  background: var(--color-primary-soft);
}

/* Hero */
.hero-section {
  padding: 78px 0 74px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 44px;
  align-items: center;
}

.hero-copy h1 {
  max-width: 840px;
  margin-top: 14px;
  font-size: 58px;
  line-height: 1.03;
}

.hero-text {
  max-width: 700px;
  margin-top: 22px;
  font-size: 20px;
}

.hero-badges,
.feature-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-badges span,
.feature-cloud span {
  min-height: 40px;
  padding: 9px 14px;
  border: 1px solid rgba(196, 181, 253, 0.22);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(255, 255, 255, 0.035));
  color: var(--color-text-secondary);
}

.hero-actions,
.inline-actions,
.section-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.cta-notes {
  display: grid;
  gap: 4px;
  margin-top: 14px;
  font-size: 14px;
}

.cta-notes p {
  color: var(--color-text-muted);
}

.device-panel {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid rgba(196, 181, 253, 0.22);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(16, 24, 39, 0.98), rgba(22, 34, 56, 0.78)) padding-box,
    linear-gradient(135deg, rgba(139, 92, 246, 0.76), rgba(196, 181, 253, 0.12), rgba(52, 211, 153, 0.24)) border-box;
  box-shadow: var(--shadow-soft);
}

.device-panel::before {
  position: absolute;
  width: 260px;
  height: 260px;
  right: -80px;
  top: -90px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.22);
  content: "";
  filter: blur(14px);
}

.panel-top {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-secondary);
  font-weight: 700;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary-hover);
  box-shadow: 0 0 0 7px var(--color-primary-soft);
}

.device-stack {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(4, 64px);
  gap: 12px;
  margin: 34px 0;
}

.device-card {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--color-text);
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.desktop {
  grid-column: 1 / 5;
  grid-row: 1 / 3;
}

.phone {
  grid-column: 5 / 7;
  grid-row: 1 / 4;
}

.tablet {
  grid-column: 1 / 3;
  grid-row: 3 / 5;
}

.laptop {
  grid-column: 3 / 5;
  grid-row: 3 / 5;
}

.tv {
  grid-column: 5 / 7;
  grid-row: 4 / 5;
}

.panel-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.panel-stats article {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  background: rgba(7, 11, 20, 0.36);
}

.panel-stats strong {
  display: block;
  color: var(--color-primary-pale);
  font-size: 23px;
  line-height: 1.1;
}

.panel-stats span {
  display: block;
  margin-top: 6px;
  color: var(--color-text-muted);
  font-size: 13px;
}

/* Sections */
.platform-section {
  position: relative;
}

.platform-section::before {
  position: absolute;
  width: 280px;
  height: 280px;
  left: -120px;
  top: 40px;
  border-radius: 50%;
  background: rgba(139, 92, 246, 0.08);
  content: "";
  filter: blur(6px);
  pointer-events: none;
}

.premium-section {
  background:
    radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.18), transparent 34%),
    rgba(7, 11, 20, 0.4);
}

/* Cards */
.cards-grid {
  display: grid;
  gap: 20px;
}

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

.platform-card,
.steps-card,
.benefit-card,
.faq-item {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(196, 181, 253, 0.18);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(16, 24, 39, 0.94), rgba(22, 34, 56, 0.74)) padding-box,
    linear-gradient(135deg, rgba(139, 92, 246, 0.38), rgba(255, 255, 255, 0.06), rgba(196, 181, 253, 0.16)) border-box;
  box-shadow: 0 16px 54px rgba(0, 0, 0, 0.24);
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.platform-card,
.steps-card,
.benefit-card,
.faq-item {
  padding: 28px;
}

.platform-card:hover,
.steps-card:hover,
.benefit-card:hover,
.faq-item:hover {
  border-color: rgba(167, 139, 250, 0.52);
  background-color: var(--color-surface-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.steps-card h3,
.benefit-card h3,
.faq-item h3 {
  font-size: 20px;
}

.steps-card ol,
.feature-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  list-style: none;
}

.steps-card li,
.feature-list li {
  position: relative;
  padding-left: 28px;
  color: var(--color-text-secondary);
}

.steps-card li::before,
.feature-list li::before {
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary-hover);
  box-shadow: 0 0 0 5px var(--color-primary-soft);
  content: "";
}

.benefit-card p,
.faq-item p {
  margin-top: 10px;
}

.feature-cloud {
  justify-content: center;
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
}

/* Buttons */
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 12px 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  background: linear-gradient(135deg, var(--color-primary), #7C3AED);
  color: var(--color-button-text);
  box-shadow: 0 14px 38px rgba(139, 92, 246, 0.28);
}

.button-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary));
  box-shadow: var(--shadow-glow);
}

.button-secondary {
  border-color: rgba(196, 181, 253, 0.3);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: rgba(167, 139, 250, 0.72);
  background: var(--color-primary-soft);
}

/* FAQ */
.faq-list {
  display: grid;
  max-width: 880px;
  margin: 0 auto;
  gap: 14px;
}

/* Footer */
.site-footer {
  padding: 46px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(5, 8, 15, 0.86);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.8fr 0.8fr auto;
  gap: 32px;
  align-items: start;
}

.footer-brand img {
  width: 168px;
  height: auto;
}

.footer-brand p {
  max-width: 380px;
  margin-top: 16px;
  color: var(--color-text-muted);
}

.footer-nav {
  display: grid;
  gap: 10px;
}

.footer-nav h3 {
  margin-bottom: 2px;
  font-size: 16px;
}

.footer-nav a {
  color: var(--color-text-secondary);
  transition: color 180ms ease;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--color-primary-hover);
}

.footer-year {
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 1080px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 14px 24px;
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero-grid,
  .split-grid,
  .platform-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 720px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 68px 0;
  }

  .hero-section {
    padding: 54px 0;
  }

  .hero-copy h1 {
    font-size: 36px;
  }

  .section-heading h2,
  .platform-card h2 {
    font-size: 30px;
  }

  .hero-text,
  .section-heading p,
  .platform-card p,
  .text-stack p {
    font-size: 16px;
  }

  .header-logo {
    width: 132px;
  }

  .header-cta {
    display: none;
  }

  .hero-actions,
  .inline-actions,
  .section-cta {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .device-stack {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .device-card,
  .desktop,
  .phone,
  .tablet,
  .laptop,
  .tv {
    grid-column: auto;
    grid-row: auto;
    min-height: 58px;
  }

  .panel-stats,
  .benefits-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .hero-copy h1 {
    font-size: 31px;
  }

  .section-heading h2,
  .platform-card h2 {
    font-size: 27px;
  }

  .device-panel,
  .platform-card,
  .steps-card,
  .benefit-card,
  .faq-item {
    padding: 20px;
  }
}