/* Variables */
:root {
  --color-bg: #070B14;
  --color-surface: #101827;
  --color-surface-hover: #162238;
  --color-primary: #EAB308;
  --color-primary-hover: #F5C542;
  --color-primary-soft: rgba(234, 179, 8, 0.12);
  --color-border: rgba(255, 255, 255, 0.12);
  --color-text: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-dark-text: #161106;
  --container-width: 1180px;
  --shadow-soft: 0 24px 70px rgba(0, 0, 0, 0.38);
  --shadow-glow: 0 0 0 1px rgba(234, 179, 8, 0.18), 0 24px 90px rgba(234, 179, 8, 0.18);
}

/* 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 20% 0%, rgba(234, 179, 8, 0.18), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(248, 215, 107, 0.1), transparent 28%),
    linear-gradient(180deg, #070B14 0%, #0A111F 48%, #070B14 100%);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  content: "";
  opacity: 0.36;
  pointer-events: none;
}

::selection {
  color: var(--color-text);
  background: rgba(234, 179, 8, 0.35);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(245, 197, 66, 0.84);
  outline-offset: 4px;
}

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

.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, 0.44);
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 36px;
  text-align: center;
}

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

.section-heading h2,
.platforms-grid h2,
.comparison-grid h2 {
  margin-top: 8px;
  font-size: 42px;
  line-height: 1.16;
  letter-spacing: 0;
}

.section-heading p,
.section-copy,
.text-stack p {
  color: var(--color-text-secondary);
  font-size: 18px;
}

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

.split-grid,
.platforms-grid,
.comparison-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.text-stack {
  display: grid;
  gap: 18px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(7, 11, 20, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

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

.header-logo {
  width: 148px;
  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 160ms ease, background-color 160ms ease;
}

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

.footer-nav a,
.faq-item a {
  color: var(--color-primary-hover);
  transition: color 160ms ease;
}

/* Hero */
.hero {
  min-height: 720px;
  padding: 100px 0 86px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 58px;
  align-items: center;
}

.hero-content h1 {
  max-width: 760px;
  margin-top: 14px;
  font-size: 56px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-text {
  max-width: 660px;
  margin-top: 22px;
  color: var(--color-text-secondary);
  font-size: 20px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-badges span {
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(234, 179, 8, 0.3);
  border-radius: 999px;
  color: var(--color-primary-hover);
  background: var(--color-primary-soft);
  font-size: 13px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.cta-note {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  position: absolute;
  inset: 10% 5%;
  z-index: -1;
  border-radius: 34px;
  background: rgba(234, 179, 8, 0.2);
  box-shadow: 0 0 90px rgba(234, 179, 8, 0.24);
  content: "";
  filter: blur(30px);
}

.premium-panel {
  padding: 26px;
  border: 1px solid rgba(234, 179, 8, 0.28);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(16, 24, 39, 0.96), rgba(7, 11, 20, 0.96));
  box-shadow: var(--shadow-glow);
}

.panel-top {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding-bottom: 20px;
  color: var(--color-text-secondary);
  font-size: 15px;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 22px rgba(234, 179, 8, 0.95);
}

.device-ring {
  position: relative;
  min-height: 290px;
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background:
    radial-gradient(circle at center, rgba(234, 179, 8, 0.2), transparent 34%),
    rgba(255, 255, 255, 0.025);
}

.device-ring::before,
.device-ring::after {
  position: absolute;
  inset: 42px;
  border: 1px solid rgba(234, 179, 8, 0.22);
  border-radius: 50%;
  content: "";
}

.device-ring::after {
  inset: 78px;
  border-color: rgba(255, 255, 255, 0.12);
}

.ring-core,
.ring-node {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(234, 179, 8, 0.34);
  box-shadow: var(--shadow-soft);
}

.ring-core {
  top: 50%;
  left: 50%;
  width: 92px;
  height: 92px;
  border-radius: 24px;
  color: var(--color-dark-text);
  background: linear-gradient(135deg, #F8D76B, #EAB308);
  font-size: 19px;
  font-weight: 900;
  transform: translate(-50%, -50%);
}

.ring-node {
  min-width: 84px;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--color-text);
  background: #101827;
  font-size: 13px;
  font-weight: 700;
}

.node-one {
  top: 34px;
  left: 30px;
}

.node-two {
  top: 42px;
  right: 24px;
}

.node-three {
  right: 42px;
  bottom: 32px;
}

.node-four {
  bottom: 44px;
  left: 34px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.metrics-grid div {
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
}

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

.metrics-grid strong {
  color: var(--color-text);
  font-size: 18px;
}

.metrics-grid span {
  margin-top: 3px;
  color: var(--color-text-muted);
  font-size: 12px;
}

/* Sections */
.section-copy {
  margin-top: 18px;
}

.platforms-grid .button {
  margin-top: 28px;
}

.comparison-card {
  padding: 26px;
  border: 1px solid rgba(234, 179, 8, 0.24);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(16, 24, 39, 0.96), rgba(22, 34, 56, 0.82));
  box-shadow: var(--shadow-soft);
}

.comparison-card h3 {
  font-size: 24px;
  line-height: 1.24;
}

.comparison-table {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.table-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 8px;
  align-items: stretch;
}

.table-row span {
  min-height: 48px;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.035);
  font-size: 14px;
}

.table-head span {
  color: var(--color-text);
  background: var(--color-primary-soft);
  font-weight: 800;
}

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

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

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

.card {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: 22px;
  background: rgba(16, 24, 39, 0.86);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.card:hover {
  border-color: rgba(234, 179, 8, 0.4);
  background: var(--color-surface-hover);
  transform: translateY(-3px);
}

.card h3 {
  font-size: 24px;
  line-height: 1.24;
}

.compact-card h3 {
  font-size: 20px;
}

.card p {
  margin-top: 13px;
  color: var(--color-text-secondary);
}

/* Buttons */
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

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

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

.button-primary {
  color: var(--color-dark-text);
  background: var(--color-primary);
  box-shadow: 0 14px 34px rgba(234, 179, 8, 0.25);
}

.button-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 18px 44px rgba(234, 179, 8, 0.35);
}

.button-secondary {
  border-color: rgba(234, 179, 8, 0.36);
  color: var(--color-primary-hover);
  background: rgba(234, 179, 8, 0.08);
}

.button-secondary:hover {
  border-color: rgba(245, 197, 66, 0.6);
  color: var(--color-text);
  background: rgba(234, 179, 8, 0.15);
}

/* FAQ */
.faq-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.faq-item {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: rgba(7, 11, 20, 0.58);
}

.faq-item h3 {
  font-size: 20px;
  line-height: 1.3;
}

.faq-item p {
  margin-top: 10px;
  color: var(--color-text-secondary);
}

.faq-item a {
  font-weight: 700;
}

.faq-item a:hover,
.footer-nav a:hover {
  color: #FBE7A6;
}

/* Footer */
.site-footer {
  padding: 54px 0;
  border-top: 1px solid var(--color-border);
  background: #070B14;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 42px;
}

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

.footer-brand p {
  max-width: 460px;
  margin-top: 18px;
  color: var(--color-text-muted);
}

.footer-year {
  font-weight: 700;
}

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

.footer-nav h2 {
  margin-bottom: 4px;
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.25;
}

.footer-nav a {
  min-height: 30px;
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* Responsive */
@media (max-width: 1020px) {
  .header-inner {
    flex-wrap: wrap;
    justify-content: center;
    padding: 14px 24px;
  }

  .main-nav {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
  }

  .hero {
    min-height: auto;
    padding-top: 76px;
  }

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

  .hero-content h1 {
    font-size: 44px;
  }

  .section-heading h2,
  .platforms-grid h2,
  .comparison-grid h2 {
    font-size: 34px;
  }

  .feature-grid,
  .faq-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 700px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 68px 0;
  }

  .header-inner {
    gap: 14px;
  }

  .header-logo {
    width: 132px;
  }

  .header-cta {
    width: 100%;
  }

  .main-nav {
    gap: 6px;
    font-size: 13px;
  }

  .main-nav a {
    min-height: 38px;
    padding: 8px 10px;
  }

  .hero-content h1 {
    font-size: 34px;
  }

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

  .hero-actions,
  .button {
    width: 100%;
  }

  .premium-panel,
  .card,
  .comparison-card,
  .faq-item {
    padding: 20px;
    border-radius: 18px;
  }

  .device-ring {
    min-height: 250px;
  }

  .device-ring::before {
    inset: 38px;
  }

  .device-ring::after {
    inset: 70px;
  }

  .ring-core {
    width: 78px;
    height: 78px;
    border-radius: 20px;
    font-size: 16px;
  }

  .ring-node {
    min-width: 72px;
    min-height: 34px;
    font-size: 12px;
  }

  .node-one {
    top: 28px;
    left: 16px;
  }

  .node-two {
    top: 34px;
    right: 12px;
  }

  .node-three {
    right: 24px;
    bottom: 26px;
  }

  .node-four {
    bottom: 40px;
    left: 18px;
  }

  .metrics-grid,
  .platform-cards,
  .table-row {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .platforms-grid h2,
  .comparison-grid h2 {
    font-size: 30px;
  }

  .card h3,
  .comparison-card h3 {
    font-size: 22px;
  }
}