:root {
  --bg: #1a1f24;
  --bg-2: #22282f;
  --panel: #2a3139;
  --chalk: #eef2f5;
  --chalk-dim: #9aa5b1;
  --mute: #6d7884;
  --cyan: #2ec4b6;
  --cyan-soft: rgba(46, 196, 182, 0.14);
  --amber: #e9a825;
  --amber-soft: rgba(233, 168, 37, 0.14);
  --line: rgba(238, 242, 245, 0.1);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --font-display: "Lexend", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --container: 1100px;
  --nav-h: 70px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--chalk);
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(46, 196, 182, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 196, 182, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
}

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

address {
  font-style: normal;
  color: var(--chalk-dim);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(26, 31, 36, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--cyan);
}

.nav {
  display: flex;
  gap: 0.15rem;
}

.nav a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--chalk-dim);
  padding: 0.45rem 0.8rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--chalk);
  background: var(--panel);
}

.header__end {
  display: flex;
  gap: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 650;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

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

.btn--cyan {
  background: var(--cyan);
  color: #082421;
  box-shadow: 0 6px 22px var(--cyan-soft);
}

.btn--ghost {
  background: transparent;
  color: var(--chalk);
  border: 1px solid var(--line);
}

.btn--ghost:hover {
  border-color: var(--mute);
}

.btn--lg {
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
}

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--chalk);
}

.nav--mobile {
  display: none;
  flex-direction: column;
  padding: 0.75rem 1rem 1.25rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s, opacity 0.3s;
}

.nav--mobile.open {
  max-height: 360px;
  opacity: 1;
}

.nav--mobile a {
  padding: 0.7rem 0;
  font-weight: 600;
  color: var(--chalk-dim);
  border-bottom: 1px solid var(--line);
}

.nav--mobile a.active {
  color: var(--cyan);
}

.hero {
  padding: 3.5rem 0 3.5rem;
}

.hero__layout {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 2.5rem;
  align-items: center;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 1.1rem;
}

.hero__tag::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 2px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin-bottom: 1.1rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.hero__text {
  color: var(--chalk-dim);
  font-size: 1.05rem;
  max-width: 42ch;
  margin-bottom: 1.65rem;
}

.hero__actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.note-line {
  font-size: 0.8rem;
  color: var(--mute);
  margin-top: 1.15rem;
  max-width: 48ch;
}

/* Module stack hero */
.module-stack {
  position: relative;
  min-height: 360px;
}

.mod {
  position: absolute;
  left: 0;
  right: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  animation: mod-in 0.6s ease backwards;
}

.mod:nth-child(1) {
  top: 0;
  transform: translateX(0);
  z-index: 3;
  animation-delay: 0.05s;
  border-left: 3px solid var(--cyan);
}

.mod:nth-child(2) {
  top: 105px;
  transform: translateX(18px);
  z-index: 2;
  animation-delay: 0.18s;
  border-left: 3px solid var(--amber);
}

.mod:nth-child(3) {
  top: 210px;
  transform: translateX(36px);
  z-index: 1;
  animation-delay: 0.3s;
  border-left: 3px solid #7aa2ff;
}

@keyframes mod-in {
  from { opacity: 0; transform: translateY(24px) translateX(var(--sx, 0)); }
  to { opacity: 1; }
}

.mod__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.55rem;
}

.mod__top strong {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 650;
}

.mod__badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--cyan-soft);
  color: var(--cyan);
}

.mod__badge--amber {
  background: var(--amber-soft);
  color: var(--amber);
}

.mod__badge--blue {
  background: rgba(122, 162, 255, 0.15);
  color: #7aa2ff;
}

.mod p {
  font-size: 0.85rem;
  color: var(--chalk-dim);
}

.mod__meta {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
  font-size: 0.72rem;
  color: var(--mute);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.section {
  padding: 4.25rem 0;
}

.section--raised {
  background: var(--bg-2);
  border-block: 1px solid var(--line);
}

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 0.55rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-desc {
  color: var(--chalk-dim);
  margin-top: 0.7rem;
  max-width: 50ch;
}

.mod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2.25rem;
}

.mod-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.25s, transform 0.25s;
}

.mod-card:hover {
  border-color: rgba(46, 196, 182, 0.4);
  transform: translateY(-3px);
}

.mod-card__code {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.mod-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 0.4rem;
}

.mod-card p {
  font-size: 0.9rem;
  color: var(--chalk-dim);
}

.path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin-top: 2.25rem;
}

.path-step {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
}

.path-step__n {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.path-step h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.path-step p {
  font-size: 0.85rem;
  color: var(--chalk-dim);
}

.feat-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.feat-bar {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.2rem 1.35rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feat-bar__id {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.feat-bar h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.feat-bar p {
  font-size: 0.9rem;
  color: var(--chalk-dim);
}

.page-hero {
  padding: 3rem 0 2.25rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.8vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-hero p {
  color: var(--chalk-dim);
  margin-top: 0.65rem;
  max-width: 50ch;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 2rem 2.25rem;
  background: linear-gradient(120deg, rgba(46, 196, 182, 0.18), rgba(122, 162, 255, 0.1));
  border: 1px solid rgba(46, 196, 182, 0.3);
  border-radius: var(--radius);
}

.cta-panel h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

.cta-panel p {
  color: var(--chalk-dim);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.info-card {
  padding: 1.1rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  border-left: 3px solid var(--cyan);
}

.info-card h3 {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mute);
  margin-bottom: 0.3rem;
}

.info-card a:hover {
  color: var(--cyan);
}

.form-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.85rem;
}

.field {
  margin-bottom: 1.05rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--chalk-dim);
  margin-bottom: 0.35rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.95rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--chalk);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-soft);
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.legal {
  max-width: 700px;
}

.legal h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 1.65rem 0 0.5rem;
}

.legal h2:first-child {
  margin-top: 0;
}

.legal p,
.legal li {
  color: var(--chalk-dim);
  font-size: 0.95rem;
  margin-bottom: 0.55rem;
}

.legal ul {
  padding-left: 1.2rem;
}

.legal a {
  color: var(--cyan);
}

.list {
  list-style: none;
  margin-top: 1rem;
}

.list li {
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.4rem;
  color: var(--chalk-dim);
}

.list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.75rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.diagram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.diagram__cell {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 650;
}

.diagram__cell span {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--mute);
  margin-top: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 1.75rem;
  margin-top: 1rem;
  position: relative;
  z-index: 1;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.75rem;
}

.footer__note {
  color: var(--chalk-dim);
  font-size: 0.9rem;
  margin-top: 0.55rem;
  max-width: 30ch;
}

.footer__col h4 {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mute);
  margin-bottom: 0.75rem;
}

.footer__col a {
  display: block;
  font-size: 0.9rem;
  color: var(--chalk-dim);
  margin-bottom: 0.35rem;
}

.footer__col a:hover {
  color: var(--cyan);
}

.footer__bar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--mute);
}

.footer__links {
  display: flex;
  gap: 1.15rem;
}

.reveal {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--up {
  transform: translateY(22px);
}

.reveal--left {
  transform: translateX(-18px);
}

.reveal--right {
  transform: translateX(18px);
}

.reveal.on {
  opacity: 1;
  transform: none;
}

.cookie-dock {
  position: fixed;
  bottom: 1.15rem;
  right: 1.15rem;
  z-index: 300;
  width: min(100% - 2rem, 340px);
  padding: 1.1rem 1.15rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  color: var(--chalk-dim);
  transform: translateY(130%);
  opacity: 0;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.35s;
}

.cookie-dock.show {
  transform: translateY(0);
  opacity: 1;
}

.cookie-dock a {
  color: var(--cyan);
  font-weight: 700;
}

.cookie-dock__btns {
  display: flex;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

@media (max-width: 900px) {
  .nav,
  .header__end .btn--ghost {
    display: none;
  }

  .menu-btn {
    display: flex;
  }

  .nav--mobile {
    display: flex;
  }

  .hero__layout,
  .mod-grid,
  .path,
  .contact-grid,
  .footer__grid,
  .split {
    grid-template-columns: 1fr;
  }

  .module-stack {
    min-height: 340px;
    margin-top: 1rem;
  }

  .mod:nth-child(2),
  .mod:nth-child(3) {
    transform: translateX(10px);
  }
}

@media (max-width: 600px) {
  .path {
    grid-template-columns: 1fr 1fr;
  }
}