@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;700&display=swap");

:root {
  --bg: #071016;
  --panel: rgba(15, 23, 20, 0.82);
  --text: #eef4e9;
  --muted: #9fb19f;
  --soft: #c9d6c1;
  --accent: #c8ff5c;
  --accent-2: #7effd8;
  --panel-line: rgba(228, 244, 222, 0.1);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 20%, rgba(74, 188, 255, 0.18), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(180, 255, 74, 0.16), transparent 24%),
    radial-gradient(circle at 78% 80%, rgba(89, 106, 255, 0.12), transparent 26%),
    linear-gradient(180deg, #071016 0%, #09161a 48%, #050a0d 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  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: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.72), transparent 82%);
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(140deg, rgba(36, 62, 79, 0.28), transparent 35%),
    linear-gradient(220deg, rgba(76, 103, 38, 0.28), transparent 42%);
  pointer-events: none;
  z-index: -3;
}

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

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

button,
input {
  font: inherit;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

.eyebrow,
.chip,
.mono,
.panel-title,
.card-tag,
.mini-label,
.step-no,
.blog-meta,
.price-tag,
.compare-label {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(233, 244, 229, 0.14);
  border-radius: 999px;
  color: #c9d8c8;
  background: rgba(113, 138, 160, 0.08);
  font-size: 0.95rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(200, 255, 92, 0.92);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 9, 13, 0.82);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 86px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
}

.brand__name {
  font-size: 1.12rem;
  font-weight: 700;
}

.brand__sub {
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  position: relative;
  color: #dce7d7;
  font-size: 0.98rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -12px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--accent), transparent);
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
  cursor: pointer;
}

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

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), #f4ff76);
  color: #13210e;
  border-color: rgba(200, 255, 92, 0.32);
  box-shadow: 0 14px 32px rgba(169, 255, 75, 0.22);
  font-weight: 700;
}

.btn--small {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 12px;
}

.hero,
.page-hero,
.definition-hero {
  padding: 72px 0 36px;
}

.hero__grid,
.page-hero__grid,
.definition-layout,
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.52fr);
  gap: 26px;
  align-items: start;
}

.hero__content {
  padding-top: 18px;
}

.hero h1,
.section-head h2,
.page-hero h1,
.definition-copy h1,
.article h1 {
  margin: 20px 0 18px;
  font-size: clamp(3rem, 7vw, 5.9rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero__lede,
.page-hero__lede,
.definition-hero__lede {
  color: var(--soft);
  font-size: 1.12rem;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero__proof,
.scenario-card__chips,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.chip,
.tag-row span,
.scenario-card__chips span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: #d3ddd2;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.hero-panel,
.feature-card,
.scenario-card,
.pricing-card,
.blog-card,
.definition-card,
.faq-item,
.step-card,
.metric-strip,
.article {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--panel-line);
  background: linear-gradient(180deg, rgba(18, 25, 23, 0.92), rgba(8, 13, 12, 0.92));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel::before,
.feature-card::before,
.scenario-card::before,
.pricing-card::before,
.blog-card::before,
.definition-card::before,
.faq-item::before,
.step-card::before,
.article::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(140deg, rgba(122, 255, 113, 0.12), transparent 40%),
    linear-gradient(220deg, rgba(90, 181, 255, 0.12), transparent 44%);
  opacity: 0.6;
  pointer-events: none;
}

.hero-panel,
.feature-card,
.scenario-card,
.pricing-card,
.blog-card,
.definition-card,
.faq-item,
.step-card,
.article {
  padding: 24px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.panel-title,
.card-tag,
.mini-label,
.step-no,
.blog-meta,
.price-tag,
.compare-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.panel-title {
  font-size: 0.84rem;
  color: #d2dccc;
}

.panel-status {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 12px;
  background: rgba(200, 255, 92, 0.08);
  border: 1px solid rgba(200, 255, 92, 0.25);
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
}

.panel-grid,
.feature-grid,
.scenario-grid,
.pricing-grid,
.blog-grid,
.stats-grid,
.faq-grid,
.footer-grid,
.steps-grid {
  display: grid;
  gap: 18px;
}

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

.mini-card {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.mini-card h3 {
  margin: 12px 0 10px;
  font-size: 1.55rem;
  line-height: 1.1;
}

.mini-card p,
.panel-copy p,
.feature-card p,
.scenario-card p,
.pricing-card p,
.blog-card p,
.definition-card p,
.faq-item p,
.step-card p,
.metric-strip span,
.section-head p,
.article p,
.article li {
  color: var(--soft);
  line-height: 1.8;
}

.signal-board {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 18px;
  margin-top: 18px;
  align-items: center;
}

.signal-bars {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 84px;
}

.signal-bars span {
  width: 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), rgba(200, 255, 92, 0.24));
  box-shadow: 0 0 18px rgba(200, 255, 92, 0.32);
  animation: pulseBars 2.8s ease-in-out infinite;
}

.signal-bars span:nth-child(1) { height: 46px; animation-delay: 0s; }
.signal-bars span:nth-child(2) { height: 74px; animation-delay: 0.2s; }
.signal-bars span:nth-child(3) { height: 36px; animation-delay: 0.4s; }

@keyframes pulseBars {
  0%, 100% { transform: scaleY(0.9); opacity: 0.86; }
  50% { transform: scaleY(1.05); opacity: 1; }
}

.signal-screen {
  min-height: 84px;
  border-radius: 16px;
  border: 1px solid rgba(125, 169, 156, 0.18);
  background:
    linear-gradient(rgba(164, 255, 211, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(164, 255, 211, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(79, 117, 108, 0.22), rgba(18, 26, 23, 0.38));
  background-size: 22px 22px, 22px 22px, auto;
}

.panel-copy {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-copy h3,
.feature-card h3,
.scenario-card h3,
.pricing-card h3,
.blog-card h3,
.definition-card h3,
.faq-item h3,
.step-card h3,
.article h2 {
  margin: 0 0 12px;
  line-height: 1.2;
}

.section {
  padding: 42px 0 26px;
}

.section-head {
  max-width: 860px;
  margin-bottom: 30px;
}

.section-head h2 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin-bottom: 14px;
}

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

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

.metric-strip strong,
.price-row strong {
  display: block;
  margin-top: 10px;
  font-size: 2rem;
  line-height: 1;
}

.steps-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.step-no {
  display: inline-flex;
  min-height: 34px;
  padding: 0 12px;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(200, 255, 92, 0.22);
  background: rgba(200, 255, 92, 0.08);
  color: var(--accent);
  font-size: 0.74rem;
}

.feature-card ul,
.scenario-card ul,
.pricing-card ul,
.definition-card ul,
.step-card ul,
.article ul,
.related-links {
  margin: 16px 0 0;
  padding-left: 0;
  list-style: none;
}

.feature-card li,
.scenario-card li,
.pricing-card li,
.definition-card li,
.step-card li {
  position: relative;
  padding-left: 18px;
  margin-top: 10px;
}

.feature-card li::before,
.scenario-card li::before,
.pricing-card li::before,
.definition-card li::before,
.step-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
}

.scenario-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: #d4dfd1;
  cursor: pointer;
}

.filter-chip.is-active {
  border-color: rgba(116, 197, 255, 0.34);
  background: rgba(88, 133, 181, 0.18);
}

.search-box {
  position: relative;
  min-width: min(100%, 420px);
}

.search-box input {
  width: 100%;
  min-height: 58px;
  padding: 0 18px 0 54px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.search-box svg {
  position: absolute;
  left: 18px;
  top: 18px;
  width: 22px;
  height: 22px;
  opacity: 0.75;
}

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

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

.pricing-card--featured {
  border-color: rgba(200, 255, 92, 0.22);
  transform: translateY(-8px);
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
}

.price-row span,
.blog-meta,
.muted,
.brand__sub {
  color: var(--muted);
}

.compare-wrap {
  overflow-x: auto;
  margin-top: 24px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.blog-grid .blog-card:first-child {
  grid-column: span 3;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.78rem;
  margin-bottom: 22px;
}

.aside-stack {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 108px;
}

.related-links li {
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.56fr);
  gap: 24px;
  align-items: start;
}

.field {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.field label {
  color: #dfe9dc;
  font-size: 0.98rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.field textarea {
  min-height: 132px;
  padding-top: 14px;
  resize: vertical;
}

.helper-note {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.cta-band {
  margin: 36px 0 64px;
  padding: 32px;
}

.cta-band__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-footer {
  padding: 28px 0 44px;
}

.footer-grid {
  grid-template-columns: 1.1fr repeat(3, minmax(0, 0.65fr));
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.footer-col a,
.footer-col p {
  display: block;
  margin: 9px 0;
  color: var(--muted);
  line-height: 1.8;
}

.empty-state {
  display: none;
  padding: 30px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--soft);
}

.empty-state.is-visible {
  display: block;
}

.hidden {
  display: none !important;
}

@media (max-width: 1120px) {
  .hero__grid,
  .page-hero__grid,
  .definition-layout,
  .article-layout,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .stats-grid,
  .steps-grid,
  .pricing-grid,
  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-grid .blog-card:first-child {
    grid-column: span 2;
  }

  .aside-stack {
    position: static;
  }
}

@media (max-width: 860px) {
  .site-nav,
  .site-actions .btn--ghost {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .site-header.is-open .site-nav {
    display: flex;
    position: absolute;
    top: 86px;
    left: 16px;
    right: 16px;
    padding: 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(4, 8, 10, 0.96);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-actions {
    position: absolute;
    top: calc(86px + 220px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
  }

  .site-header.is-open .site-actions .btn--ghost {
    display: inline-flex;
  }

  .panel-grid,
  .scenario-grid,
  .faq-grid,
  .feature-grid,
  .stats-grid,
  .steps-grid,
  .pricing-grid,
  .blog-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .blog-grid .blog-card:first-child {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .hero,
  .page-hero,
  .definition-hero {
    padding-top: 44px;
  }

  .btn {
    width: 100%;
  }

  .signal-board {
    grid-template-columns: 1fr;
  }
}