:root {
  --bg: #070707;
  --bg-soft: #121212;
  --panel: rgba(18, 18, 18, 0.86);
  --panel-alt: rgba(24, 24, 24, 0.9);
  --text: #f5f5f5;
  --muted: #b3b3b3;
  --line: rgba(255, 255, 255, 0.18);
  --accent: #9af7bf;
  --accent-2: #e3e3e3;
  --accent-soft: rgba(95, 255, 160, 0.22);
  --accent-line: rgba(95, 255, 160, 0.34);
  --radius: 20px;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.45);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 15%, rgba(95, 255, 160, 0.09), transparent 30%),
    radial-gradient(circle at 88% 20%, rgba(255, 255, 255, 0.08), transparent 25%),
    linear-gradient(140deg, #000000 0%, #101010 45%, #050505 100%);
  min-height: 100vh;
  overflow-x: hidden;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.95),
    0 0 8px rgba(0, 0, 0, 0.65);
}

.smoke-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.55;
}

.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.34;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.09) 1px, transparent 1px),
    radial-gradient(circle at 68% 35%, rgba(95, 255, 160, 0.1), transparent 40%);
  background-size: 46px 46px, 46px 46px, auto;
  animation: gridShift 26s linear infinite, gridPulse 9s ease-in-out infinite;
  mask-image: radial-gradient(circle at center, black 20%, transparent 88%);
  will-change: background-position, transform, opacity;
}

.grid-bg::before,
.grid-bg::after {
  content: "";
  position: absolute;
  inset: -8%;
  pointer-events: none;
}

.grid-bg::before {
  background-image:
    linear-gradient(to right, rgba(95, 255, 160, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(95, 255, 160, 0.08) 1px, transparent 1px);
  background-size: 92px 92px;
  animation: gridShiftReverse 34s linear infinite;
  opacity: 0.25;
}

.grid-bg::after {
  background: radial-gradient(circle at 24% 22%, rgba(255, 255, 255, 0.1), transparent 35%);
  animation: gridGlow 11s ease-in-out infinite;
  opacity: 0.3;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  margin: 0 auto;
  width: min(1320px, calc(100vw - 2.5rem));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0.2rem;
  background: transparent;
  border-bottom: 0;
  backdrop-filter: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 8px rgba(95, 255, 160, 0.18));
}

.brand-fallback {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(140deg, #ffffff, #9f9f9f);
  box-shadow: 0 0 16px rgba(255, 255, 255, 0.4);
}

.brand-logo.is-missing {
  display: none;
}

.brand-logo.is-missing + .brand-fallback {
  display: inline-block;
}

.brand-text {
  font-weight: 800;
  font-size: 1.08rem;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 1.04rem;
  font-weight: 700;
  transition: color 180ms ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--text);
  text-shadow: 0 0 10px rgba(95, 255, 160, 0.2);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  font-family: inherit;
}

main {
  width: min(1320px, calc(100vw - 2.5rem));
  margin: 2.8rem auto 4rem;
  display: grid;
  gap: 2.2rem;
}

.hero {
  padding: clamp(1.5rem, 2.4vw, 3rem);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 20% 10%, rgba(95, 255, 160, 0.08), transparent 38%),
    linear-gradient(130deg, rgba(20, 20, 20, 0.58), rgba(9, 9, 9, 0.36));
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.32);
}

.kicker {
  margin: 0;
  color: var(--accent);
  font: 600 0.78rem/1.5 "JetBrains Mono", monospace;
  letter-spacing: 0.11em;
}

h1 {
  margin: 0.6rem 0 0.8rem;
  font-size: clamp(2rem, 5.2vw, 4.5rem);
  line-height: 1;
  max-width: 14ch;
  text-wrap: balance;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.98),
    0 0 14px rgba(0, 0, 0, 0.8),
    1px 0 0 rgba(0, 0, 0, 0.85),
    -1px 0 0 rgba(0, 0, 0, 0.85);
}

.hero-copy {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.2vw, 1.15rem);
}

.hero-subheading {
  margin: 0 0 0.8rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.hero-actions,
.footer-actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.social-links {
  margin-top: 1.2rem;
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.social-link-nav {
  width: 40px;
  height: 40px;
  color: var(--muted);
}

.social-link-nav svg {
  width: 20px;
  height: 20px;
}

.social-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.social-link:hover,
.social-link:focus-visible {
  transform: translateY(-1px);
  border-color: var(--accent-line);
  box-shadow: 0 0 0 1px rgba(95, 255, 160, 0.08) inset;
}

.btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(130deg, #f0f0f0, #d8d8d8);
  color: #050505;
  box-shadow: 0 10px 24px rgba(95, 255, 160, 0.18);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  background: rgba(255, 255, 255, 0.025);
}

.market-tape {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.market-tape span {
  padding: 0.44rem 0.72rem;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: rgba(95, 255, 160, 0.06);
  font: 600 0.8rem/1 "JetBrains Mono", monospace;
}

.panel,
.site-footer {
  padding: clamp(1.1rem, 2vw, 1.8rem) 0;
  border-radius: 0;
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
}

.panel.alt {
  background: transparent;
}

h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.8vw, 2.5rem);
  text-wrap: balance;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.95),
    0 0 10px rgba(0, 0, 0, 0.7);
}

.panel > p,
.site-footer > p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  max-width: 66ch;
}

.stats {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.gridbot-ui {
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  display: grid;
  grid-template-columns: 240px 1fr;
  overflow: hidden;
}

.gridbot-sidebar {
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem;
  background: rgba(255, 255, 255, 0.01);
}

.gridbot-sidebar h3 {
  margin-bottom: 0.4rem;
}

.gridbot-sidebar p {
  margin: 0 0 0.65rem;
  color: var(--accent);
  font: 600 0.86rem/1.4 "JetBrains Mono", monospace;
}

.gridbot-sidebar ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.gridbot-main {
  padding: 1rem;
  display: grid;
  gap: 0.75rem;
}

.gridbot-chart {
  min-height: 140px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    radial-gradient(circle at 70% 25%, rgba(95, 255, 160, 0.12), transparent 36%),
    rgba(0, 0, 0, 0.34);
  background-size: 22px 22px, 22px 22px, auto, auto;
  padding: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 0.45rem;
}

.gridbot-chart span {
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: rgba(95, 255, 160, 0.08);
  padding: 0.35rem 0.6rem;
  font: 600 0.76rem/1 "JetBrains Mono", monospace;
}

.gridbot-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.gridbot-controls div {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.015);
  padding: 0.7rem 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.gridbot-controls strong {
  font-size: 0.9rem;
}

.gridbot-controls span {
  color: var(--accent);
  font: 600 0.78rem/1 "JetBrains Mono", monospace;
}

.stats article,
.card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 1rem;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  backdrop-filter: blur(6px);
}

.stats article:hover,
.card:hover {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 1px rgba(95, 255, 160, 0.08) inset;
}

h3 {
  margin: 0;
  font-size: 1.05rem;
}

article p {
  margin: 0.55rem 0 0;
  color: var(--muted);
}

.cards {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.why-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.why-item p {
  margin-top: 0.5rem;
}

.faq-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.7rem;
}

.faq-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 0.9rem 1rem;
  font-weight: 600;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font: 600 1rem/1 "JetBrains Mono", monospace;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  margin: 0;
  padding: 0 1rem 1rem;
  color: var(--muted);
}

.strategy-accordion {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.grid-type {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  overflow: hidden;
}

.grid-type summary {
  list-style: none;
  cursor: pointer;
  padding: 0.95rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
}

.grid-type summary::-webkit-details-marker {
  display: none;
}

.grid-type summary::after {
  content: "+";
  color: var(--accent);
  font: 600 1.1rem/1 "JetBrains Mono", monospace;
}

.grid-type[open] {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 1px rgba(95, 255, 160, 0.08) inset;
}

.grid-type[open] summary::after {
  content: "-";
}

.grid-type-body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--line);
}

.grid-type-body p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.workflow {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.workflow li {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 0.85rem 0.95rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: center;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
}

.workflow span {
  font: 600 0.86rem/1 "JetBrains Mono", monospace;
  color: var(--accent);
}

.workflow p {
  margin: 0;
}

.site-footer {
  margin: 0 auto 2.5rem;
  width: min(1320px, calc(100vw - 2.5rem));
}

.site-footer small {
  margin-top: 1rem;
  display: block;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@keyframes gridShift {
  0% {
    background-position: 0 0, 0 0, 0 0;
  }
  100% {
    background-position: 46px 46px, 46px 46px, 0 0;
  }
}

@keyframes gridShiftReverse {
  0% {
    background-position: 0 0, 0 0;
  }
  100% {
    background-position: -92px -92px, -92px -92px;
  }
}

@keyframes gridPulse {
  0%,
  100% {
    opacity: 0.28;
  }
  50% {
    opacity: 0.38;
  }
}

@keyframes gridGlow {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.24;
  }
  50% {
    transform: translate3d(2%, 2%, 0) scale(1.04);
    opacity: 0.36;
  }
}

@media (max-width: 920px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: inline-block;
    margin-left: auto;
  }

  .main-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.4rem;
  }

  .social-link-nav {
    width: 42px;
    height: 42px;
  }

  .main-nav.is-open {
    display: flex;
  }

  .gridbot-ui {
    grid-template-columns: 1fr;
  }

  .gridbot-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .strategy-accordion {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 540px) {
  .site-header {
    width: calc(100vw - 1rem);
    margin-top: 0;
    padding-top: 0.7rem;
  }

  main,
  .site-footer {
    width: calc(100vw - 1rem);
  }

  .hero-actions .btn,
  .footer-actions .btn {
    width: 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .smoke-canvas {
    display: none;
  }

  .grid-bg,
  .grid-bg::before,
  .grid-bg::after {
    animation: none;
  }
}