:root {
  --vp-bg: #060c18;
  --vp-card-bg: #101828;
  --vp-bg2: #1e2939;
  --vp-highlight: #3eabb11a;
  --vp-outline: #1e2939;
  --vp-teal: #44bcc3;
  --vp-teal-dark: #168389;
  --vp-teal-900: #1d4f52;
  --vp-headline: #f9fafb;
  --vp-body: #e5e7eb;
  --vp-caption: #9ca3af;
  --vp-secondary: #6d7280;
  --vp-green: #4ade80;
  --vp-red: #fb2c36;
  --vp-radius: 0.625rem;
  --vp-font: 'Cascadia Mono', ui-monospace, monospace;
}

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

body {
  background-color: var(--vp-bg);
  color: var(--vp-body);
  font-family: var(--vp-font);
  font-size: 0.875rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--vp-teal);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

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

/* ── Layout ─────────────────────────────────────────────── */

.vp-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.vp-container {
  width: 100%;
  max-width: 900px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.vp-container--wide {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ── Nav ─────────────────────────────────────────────────── */

.vp-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(6, 12, 24, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--vp-outline);
  padding-block: 1rem;
}

.vp-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.vp-nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.vp-nav__logo img {
  height: 28px;
  width: auto;
}

.vp-nav__logo-text {
  color: var(--vp-headline);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.vp-nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.vp-nav__links a {
  display: inline-block;
  color: var(--vp-caption);
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--vp-radius);
  text-decoration: none;
  transition: color 0.2s, background-color 0.2s;
}

.vp-nav__links a:hover,
.vp-nav__links a.active {
  color: var(--vp-headline);
  background-color: var(--vp-bg2);
}

/* ── Hero / page header ──────────────────────────────────── */

.vp-page-header {
  background: linear-gradient(135deg, #1d4f5266 0%, #060c18 60%);
  border-bottom: 1px solid var(--vp-outline);
  padding-block: 3.5rem 2.5rem;
  text-align: center;
}

.vp-page-header__eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--vp-teal);
  background: rgba(68, 188, 195, 0.1);
  border: 1px solid rgba(68, 188, 195, 0.25);
  border-radius: 999px;
  padding: 0.25rem 0.9rem;
  margin-bottom: 1rem;
}

.vp-page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--vp-headline);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.vp-page-header__sub {
  font-size: 0.9rem;
  color: var(--vp-caption);
  max-width: 540px;
  margin-inline: auto;
  line-height: 1.65;
}

/* ── Main content area ───────────────────────────────────── */

.vp-main {
  flex: 1;
  padding-block: 2.5rem 4rem;
}

/* ── Section headings ────────────────────────────────────── */

.vp-section {
  margin-bottom: 3rem;
}

.vp-section__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--vp-headline);
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--vp-outline);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.vp-section__title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background: linear-gradient(180deg, var(--vp-teal) 0%, var(--vp-teal-dark) 100%);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── Cards ───────────────────────────────────────────────── */

.vp-card {
  background-color: var(--vp-card-bg);
  border: 1px solid var(--vp-outline);
  border-radius: calc(var(--vp-radius) * 1.8);
  padding: 1.5rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.vp-card:hover {
  border-color: rgba(68, 188, 195, 0.35);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.vp-card--flat {
  background-color: var(--vp-highlight);
  border-color: rgba(62, 171, 177, 0.18);
}

/* ── FAQ / Q&A ───────────────────────────────────────────── */

.vp-qa-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.vp-qa {
  background-color: var(--vp-card-bg);
  border: 1px solid var(--vp-outline);
  border-radius: calc(var(--vp-radius) * 1.8);
  overflow: hidden;
  transition: border-color 0.2s;
}

.vp-qa:hover {
  border-color: rgba(68, 188, 195, 0.3);
}

.vp-qa__question {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--vp-headline);
  padding: 1.1rem 1.4rem;
  line-height: 1.45;
  border-bottom: 1px solid var(--vp-outline);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.vp-qa__question::before {
  content: 'Q';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, #156f79, #138c61);
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  margin-top: 0.05em;
}

.vp-qa__answer {
  padding: 1.1rem 1.4rem;
  color: var(--vp-caption);
  font-size: 0.845rem;
  line-height: 1.7;
  border-left: 3px solid rgba(68, 188, 195, 0.25);
}

.vp-qa__answer p {
  margin: 0;
}

.vp-qa__answer p + p {
  margin-top: 0.65rem;
}

.vp-qa__answer a {
  color: var(--vp-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── About-us specific ──────────────────────────────────── */

.vp-about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .vp-about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.vp-about-grid--3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .vp-about-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.vp-stat-card {
  background: var(--vp-highlight);
  border: 1px solid rgba(62, 171, 177, 0.2);
  border-radius: calc(var(--vp-radius) * 1.6);
  padding: 1.25rem 1.5rem;
  text-align: center;
}

.vp-stat-card__value {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--vp-headline);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.vp-stat-card__label {
  font-size: 0.75rem;
  color: var(--vp-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.vp-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.vp-feature-item__icon {
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(22, 131, 137, 0.5), rgba(29, 79, 82, 0.5));
  border: 1px solid rgba(68, 188, 195, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.vp-feature-item__body h3 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--vp-headline);
  margin-bottom: 0.3rem;
}

.vp-feature-item__body p {
  font-size: 0.82rem;
  color: var(--vp-caption);
  line-height: 1.65;
}

/* ── Prose text ──────────────────────────────────────────── */

.vp-prose {
  color: var(--vp-caption);
  font-size: 0.875rem;
  line-height: 1.75;
}

.vp-prose h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--vp-headline);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.vp-prose h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--vp-headline);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.vp-prose p {
  margin-bottom: 1rem;
}

.vp-prose p:last-child {
  margin-bottom: 0;
}

.vp-prose a {
  color: var(--vp-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.vp-prose strong {
  color: var(--vp-headline);
  font-weight: 600;
}

.vp-prose ul,
.vp-prose ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.vp-prose li {
  margin-bottom: 0.4rem;
}

/* ── Inline breadcrumb / path ────────────────────────────── */

.vp-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--vp-secondary);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.vp-breadcrumb a {
  color: var(--vp-caption);
  text-decoration: none;
}

.vp-breadcrumb a:hover {
  color: var(--vp-teal);
}

.vp-breadcrumb__sep {
  color: var(--vp-outline);
  font-size: 0.7rem;
}

.vp-breadcrumb__current {
  color: var(--vp-teal);
}

/* ── Buttons ─────────────────────────────────────────────── */

.vp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.25rem;
  border-radius: var(--vp-radius);
  font-family: var(--vp-font);
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: opacity 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.vp-btn:hover {
  opacity: 0.85;
  text-decoration: none;
}

.vp-btn--primary {
  background: linear-gradient(90deg, #156f79, #138c61);
  color: #fff;
  border-color: #44bcc3;
}

.vp-btn--secondary {
  background: var(--vp-bg2);
  color: var(--vp-caption);
  border-color: var(--vp-outline);
}

.vp-btn--secondary:hover {
  color: var(--vp-headline);
  border-color: var(--vp-caption);
}

.vp-btn--ghost {
  background: transparent;
  color: var(--vp-teal);
  border-color: rgba(68, 188, 195, 0.35);
}

.vp-btn--ghost:hover {
  background: rgba(68, 188, 195, 0.08);
}

.vp-btn-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* ── Tag / badge ─────────────────────────────────────────── */

.vp-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.vp-tag--teal {
  background: rgba(68, 188, 195, 0.12);
  color: var(--vp-teal);
  border: 1px solid rgba(68, 188, 195, 0.25);
}

.vp-tag--green {
  background: rgba(74, 222, 128, 0.1);
  color: var(--vp-green);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

/* ── Divider ─────────────────────────────────────────────── */

.vp-divider {
  height: 1px;
  background: var(--vp-outline);
  margin-block: 2rem;
  border: none;
}

/* ── Notice / callout ────────────────────────────────────── */

.vp-callout {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--vp-radius);
  border-left: 3px solid var(--vp-teal);
  background: rgba(68, 188, 195, 0.07);
  font-size: 0.845rem;
  color: var(--vp-caption);
  line-height: 1.65;
}

.vp-callout--warn {
  border-left-color: #eab308;
  background: rgba(234, 179, 8, 0.07);
}

.vp-callout--info {
  border-left-color: #3b82f6;
  background: rgba(59, 130, 246, 0.07);
}

/* ── Footer ──────────────────────────────────────────────── */

.vp-footer {
  background-color: var(--vp-card-bg);
  border-top: 1px solid var(--vp-outline);
  padding-block: 2rem;
}

.vp-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .vp-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.vp-footer__copy {
  font-size: 0.75rem;
  color: var(--vp-secondary);
}

.vp-footer__nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
}

.vp-footer__nav a {
  font-size: 0.75rem;
  color: var(--vp-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.vp-footer__nav a:hover {
  color: var(--vp-teal);
}

/* ── Return home block ───────────────────────────────────── */

.vp-home-return {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--vp-outline);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Internal link highlights ────────────────────────────── */

.vp-link-inline {
  color: var(--vp-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.vp-link-inline:hover {
  opacity: 0.75;
}

/* ── Table of contents (optional sidebar) ────────────────── */

.vp-toc {
  background: var(--vp-card-bg);
  border: 1px solid var(--vp-outline);
  border-radius: calc(var(--vp-radius) * 1.4);
  padding: 1.1rem 1.25rem;
  font-size: 0.8rem;
  margin-bottom: 2rem;
}

.vp-toc__title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--vp-secondary);
  margin-bottom: 0.75rem;
}

.vp-toc ol,
.vp-toc ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.vp-toc a {
  color: var(--vp-caption);
  text-decoration: none;
  display: block;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: color 0.15s, background-color 0.15s;
}

.vp-toc a:hover {
  color: var(--vp-teal);
  background: rgba(68, 188, 195, 0.06);
  text-decoration: none;
}

/* ── Number index badge ──────────────────────────────────── */

.vp-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.vp-step__num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #156f79, #138c61);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}

.vp-step__body h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--vp-headline);
  margin-bottom: 0.3rem;
}

.vp-step__body p {
  font-size: 0.84rem;
  color: var(--vp-caption);
  line-height: 1.65;
}

/* ── Responsive tweaks ───────────────────────────────────── */

@media (max-width: 640px) {
  .vp-page-header {
    padding-block: 2.25rem 1.75rem;
  }

  .vp-main {
    padding-block: 1.75rem 3rem;
  }

  .vp-qa__question,
  .vp-qa__answer {
    padding: 0.9rem 1rem;
  }

  .vp-card {
    padding: 1.1rem;
  }

  .vp-stat-card__value {
    font-size: 1.35rem;
  }
}

/* ── Utility helpers ─────────────────────────────────────── */

.vp-text-center { text-align: center; }
.vp-text-right  { text-align: right; }
.vp-mt-0  { margin-top: 0; }
.vp-mt-1  { margin-top: 0.5rem; }
.vp-mt-2  { margin-top: 1rem; }
.vp-mt-3  { margin-top: 1.5rem; }
.vp-mb-0  { margin-bottom: 0; }
.vp-mb-1  { margin-bottom: 0.5rem; }
.vp-mb-2  { margin-bottom: 1rem; }
.vp-mb-3  { margin-bottom: 1.5rem; }
.vp-gap-1 { gap: 0.5rem; }
.vp-gap-2 { gap: 1rem; }
.vp-gap-3 { gap: 1.5rem; }
.vp-flex  { display: flex; }
.vp-flex-col { flex-direction: column; }
.vp-flex-wrap { flex-wrap: wrap; }
.vp-items-center { align-items: center; }
.vp-justify-center { justify-content: center; }
.vp-justify-between { justify-content: space-between; }
.vp-w-full { width: 100%; }
.vp-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}