* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(104, 225, 191, 0.18), transparent 34rem),
    radial-gradient(circle at 86% 0%, rgba(240, 191, 104, 0.16), transparent 26rem),
    linear-gradient(145deg, #061616 0%, #0a1d1c 48%, #050b0d 100%);
  line-height: 1.65;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(214, 239, 229, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(214, 239, 229, 0.045) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(circle at 50% 10%, black, transparent 78%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 11, 13, 0.72) 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(6, 22, 22, 0.78);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav-container,
.section-inner,
.hero-inner,
.stat-strip,
.footer-inner {
  width: min(var(--max), calc(100% - (var(--pad) * 2)));
  margin-inline: auto;
}

.nav-container {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  min-width: 148px;
}

.brand-logo img {
  display: block;
  width: min(188px, 42vw);
  filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.35));
}

nav {
  max-width: 100%;
}

nav ul {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
}

nav a {
  display: inline-flex;
  border-radius: 999px;
  padding: 0.58rem 0.88rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

nav a:hover,
nav a:focus-visible,
nav a.active {
  color: var(--ink);
  background: rgba(104, 225, 191, 0.12);
  box-shadow: inset 0 0 0 1px rgba(104, 225, 191, 0.18);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4.8rem, 8vw, 8.5rem) 0 3rem;
}

.hero::before {
  content: '';
  position: absolute;
  right: -10rem;
  top: 7rem;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  border: 1px solid rgba(104, 225, 191, 0.28);
  box-shadow: inset 0 0 110px rgba(104, 225, 191, 0.08);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-inner > *,
.split > *,
.diagnostics-grid > *,
.download-panel > * {
  min-width: 0;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--signal);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 10ch;
  margin-bottom: 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 8.4rem);
  line-height: 0.83;
  letter-spacing: -0.075em;
}

.hero-title-compact {
  display: none;
}

h2 {
  max-width: 12ch;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  letter-spacing: -0.035em;
}

.lead,
.large-copy {
  max-width: 48rem;
  color: var(--muted);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 2rem 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: #031311;
  background: linear-gradient(135deg, var(--signal), #baf5df);
  box-shadow: 0 18px 50px rgba(104, 225, 191, 0.22);
}

.button-secondary {
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.045);
}

.descriptor-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1rem;
  max-width: 44rem;
  margin: 1.8rem 0 0;
  padding: 0;
  list-style: none;
}

.descriptor-list li {
  position: relative;
  padding: 0.1rem 0 0.1rem 1.15rem;
  border: 0;
  border-radius: 0;
  color: var(--muted);
  background: transparent;
}

.descriptor-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.78rem;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(104, 225, 191, 0.08);
}

.product-stage {
  position: relative;
  margin: 0;
  padding: clamp(1rem, 2vw, 1.4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    rgba(7, 24, 23, 0.8);
  box-shadow: var(--shadow);
}

.product-stage img {
  display: block;
  border-radius: calc(var(--radius-xl) - 12px);
}

.product-stage figcaption {
  margin-top: 0.9rem;
  color: var(--muted-2);
  font-size: 0.86rem;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
}

.stat-strip div {
  padding: 1.15rem;
  background: rgba(7, 24, 23, 0.84);
}

.stat-strip strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 1.05rem;
}

.stat-strip span {
  color: var(--muted);
  font-size: 0.86rem;
}

.section,
.page-hero {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.page-hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent);
}

.page-hero h1 {
  max-width: 11ch;
}

.split,
.diagnostics-grid,
.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.section-muted,
.section-principle {
  background: rgba(255, 255, 255, 0.035);
  border-block: 1px solid var(--line);
}

.section-modes {
  background:
    radial-gradient(circle at 12% 10%, rgba(104, 225, 191, 0.13), transparent 24rem),
    radial-gradient(circle at 90% 80%, rgba(240, 191, 104, 0.11), transparent 22rem);
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

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

.mode-card {
  min-height: 410px;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025)),
    rgba(8, 28, 26, 0.82);
  box-shadow: var(--shadow);
}

.mode-card span {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--warning);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.mode-card h3 {
  max-width: 10ch;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.mode-card p {
  max-width: 39rem;
  color: var(--muted);
}

.mode-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.mode-card li {
  padding: 0.58rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.82rem;
  background: rgba(104, 225, 191, 0.08);
}

.feature-card {
  min-height: 250px;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
    var(--panel);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.18);
}

.feature-card span {
  display: inline-block;
  margin-bottom: 1.4rem;
  color: var(--warning);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.feature-card p,
.copy-column,
.checklist {
  color: var(--muted);
}

.section-diagnostics {
  position: relative;
}

.terminal-card {
  padding: 1.2rem;
  border: 1px solid rgba(104, 225, 191, 0.28);
  border-radius: var(--radius-lg);
  background: rgba(1, 9, 10, 0.72);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), var(--shadow);
}

.terminal-card span,
.terminal-card code {
  font-family: var(--font-mono);
}

.terminal-card span {
  display: block;
  margin-bottom: 1rem;
  color: var(--signal);
  font-size: 0.78rem;
}

.terminal-card code {
  display: block;
  white-space: pre-wrap;
  color: #caefe2;
}

.download-panel {
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.2rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 88% 12%, rgba(104, 225, 191, 0.16), transparent 18rem),
    var(--panel-strong);
  box-shadow: var(--shadow);
}

.download-panel .button {
  justify-self: end;
}

.download-panel small {
  color: var(--muted-2);
}

.checklist {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding-left: 1.8rem;
}

.checklist li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--signal) 0 35%, transparent 42%);
  box-shadow: 0 0 0 1px rgba(104, 225, 191, 0.35), 0 0 20px rgba(104, 225, 191, 0.18);
}

.contact-section {
  padding-top: 0;
}

.form-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(1.5rem, 4vw, 2.2rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 92% 8%, rgba(104, 225, 191, 0.13), transparent 18rem),
    rgba(8, 28, 26, 0.86);
  box-shadow: var(--shadow);
}

.form-panel p {
  color: var(--muted);
}

.contact-form {
  display: grid;
  gap: 1rem;
}

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

.contact-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.85rem 0.95rem;
  color: var(--ink);
  font: inherit;
  background: rgba(2, 12, 13, 0.58);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--muted-2);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(104, 225, 191, 0.58);
  outline: none;
  box-shadow: 0 0 0 4px rgba(104, 225, 191, 0.1);
}

.form-trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.form-status-success {
  color: #d9fff2;
  border: 1px solid rgba(104, 225, 191, 0.36);
  background: rgba(104, 225, 191, 0.1);
}

.form-status-error {
  color: #ffe9c3;
  border: 1px solid rgba(240, 191, 104, 0.4);
  background: rgba(240, 191, 104, 0.1);
}

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  background: rgba(4, 12, 13, 0.72);
}

.footer-inner {
  display: grid;
  gap: 0.5rem;
  color: var(--muted);
}

.footer-logo {
  width: max-content;
}

.site-footer small {
  color: var(--muted-2);
}

@media (max-width: 920px) {
  .nav-container {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  nav ul {
    max-width: 100%;
    flex-wrap: wrap;
    border-radius: var(--radius-md);
  }

  .hero-inner,
  .split,
  .diagnostics-grid,
  .download-panel,
  .form-panel {
    grid-template-columns: 1fr;
  }

  h1,
  h2 {
    max-width: 100%;
  }

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

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

  .download-panel .button {
    justify-self: start;
  }
}

@media (max-width: 620px) {
  :root {
    --pad: 1.25rem;
  }

  main,
  .site-header,
  .hero,
  .section,
  .page-hero {
    max-width: 100vw;
    overflow-x: clip;
  }

  .nav-container,
  .section-inner,
  .hero-inner,
  .stat-strip,
  .footer-inner {
    width: calc(100vw - (var(--pad) * 2));
    max-width: calc(100vw - (var(--pad) * 2));
  }

  .nav-container {
    min-height: auto;
    gap: 0.9rem;
  }

  .logo {
    min-width: 0;
  }

  .brand-logo img {
    width: 142px;
  }

  nav,
  nav ul {
    width: 100%;
  }

  nav ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.12rem;
    padding: 0.28rem;
  }

  nav a {
    justify-content: center;
    padding: 0.48rem 0.42rem;
    font-size: 0.62rem;
    letter-spacing: 0.1em;
  }

  .hero {
    padding-top: 4.2rem;
  }

  .hero-copy,
  .hero-actions,
  .descriptor-list,
  .product-stage {
    width: 100%;
    max-width: 100%;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.25rem, 9.6vw, 2.65rem);
    line-height: 1;
    letter-spacing: -0.038em;
  }

  .hero-title-wide {
    display: none;
  }

  .hero-title-compact {
    display: inline;
  }

  h2 {
    font-size: clamp(2.35rem, 12vw, 3.2rem);
    line-height: 0.95;
  }

  .lead,
  .large-copy {
    font-size: 1.03rem;
  }

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

  .product-stage figcaption {
    overflow-wrap: anywhere;
  }

  .descriptor-list,
  .stat-strip,
  .card-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
  }

  .mode-card {
    min-height: auto;
  }
}

@media (max-width: 430px) {
  .hero-inner,
  .section-inner,
  .stat-strip,
  .footer-inner {
    width: min(330px, calc(100vw - (var(--pad) * 2)));
    max-width: min(330px, calc(100vw - (var(--pad) * 2)));
  }

  h1 {
    max-width: 8em;
    font-size: clamp(2.1rem, 9vw, 2.35rem);
  }

  .lead,
  .large-copy {
    max-width: 100%;
  }
}