/* ===================================================================
   MOX Consulting — styles.css
   Mobile-first. Dark theme. No build step.
   =================================================================== */

/* ---------- Tokens ---------- */
:root {
  --bg:            #0A0E1A;
  --bg-alt:        #0E1426;
  --bg-card:       #131A2E;
  --bg-card-hover: #182142;
  --border:        #1E2942;
  --border-strong: #2A3656;
  --primary:       #2563EB;
  --primary-hover: #1D4ED8;
  --primary-soft:  rgba(37, 99, 235, 0.12);
  --heading:       #F8FAFC;
  --text:          #CBD5E1;
  --text-dim:      #94A3B8;
  --text-faint:    #64748B;
  --accent-glow:   rgba(37, 99, 235, 0.35);

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow:    0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 24px 48px rgba(0,0,0,0.45);

  --container: 1180px;
  --gutter: 1.25rem;

  --easing: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; transition: color 160ms var(--easing); }
a:hover { color: var(--heading); }

h1, h2, h3, h4 {
  color: var(--heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}
p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }

::selection { background: var(--primary); color: var(--heading); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: 5rem;
  border-top: 1px solid var(--border);
}
.section:nth-of-type(even) { background: var(--bg-alt); }

.section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 0.75rem;
}
.section__lede {
  color: var(--text-dim);
  font-size: 1.0625rem;
  max-width: 56ch;
  margin: 0 0 2.5rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: transform 120ms var(--easing), background 160ms var(--easing), border-color 160ms var(--easing), box-shadow 160ms var(--easing);
  white-space: nowrap;
}
.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px -6px var(--accent-glow);
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 28px -6px var(--accent-glow);
  color: #fff;
}
.btn--ghost {
  background: transparent;
  color: var(--heading);
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  background: var(--bg-card);
  border-color: var(--primary);
  color: var(--heading);
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--easing), background 200ms var(--easing);
}
.nav.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 14, 26, 0.95);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}
.nav__logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.nav__logo-mark {
  color: var(--heading);
  font-size: 1.125rem;
  background: linear-gradient(135deg, var(--primary), #60A5FA);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav__logo-word {
  color: var(--text);
  font-weight: 500;
  font-size: 1rem;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav__links a {
  font-size: 0.9375rem;
  color: var(--text-dim);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}
.nav__links a:hover { color: var(--heading); }
.nav__links a.is-active { color: var(--heading); }
.nav__links a.is-active::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav__cta {
  background: var(--primary);
  color: #fff !important;
  padding: 0.5rem 1rem !important;
  border-radius: var(--radius);
}
.nav__cta:hover { background: var(--primary-hover); color: #fff !important; }
.nav__cta.is-active::after { display: none; }

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 40px; height: 40px;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
}
.nav__toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--heading);
  border-radius: 2px;
  transition: transform 200ms var(--easing), opacity 200ms var(--easing);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 7vw, 5rem);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  width: 900px; height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--accent-glow), transparent 70%);
  pointer-events: none;
  opacity: 0.5;
}
.hero__inner { position: relative; max-width: 880px; }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--text-faint);
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.hero__headline {
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.hero__accent {
  background: linear-gradient(135deg, var(--primary), #60A5FA 70%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__subhead {
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--text-dim);
  max-width: 60ch;
  margin-bottom: 2.25rem;
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-bottom: 3rem;
}
.hero__principle {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.875rem 1.125rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  font-size: 0.9375rem;
  margin: 0;
}
.hero__principle-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--primary);
  font-weight: 600;
}
.hero__principle-text {
  color: var(--heading);
  font-weight: 500;
  font-style: italic;
}

/* ---------- Cards (Services) ---------- */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.card {
  position: relative;
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform 200ms var(--easing), border-color 200ms var(--easing), background 200ms var(--easing);
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  background: var(--bg-card-hover);
}
.card__num {
  display: inline-block;
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.card__title { font-size: 1.25rem; margin-bottom: 0.5rem; }
.card__body { color: var(--text-dim); margin: 0; }

/* ---------- Comparison table ---------- */
.compare__table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare__table {
  width: 100%;
  min-width: 540px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.compare__table th,
.compare__table td {
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.compare__table thead th {
  color: var(--heading);
  font-weight: 700;
  background: var(--bg-alt);
  font-size: 0.875rem;
}
.compare__table tbody td:first-child {
  color: var(--text-dim);
  font-weight: 600;
}
.compare__table td { color: var(--text); }
.compare__table tr:last-child th,
.compare__table tr:last-child td { border-bottom: none; }
.compare__col--us {
  background: var(--primary-soft);
  color: var(--heading) !important;
  border-left: 1px solid var(--border);
}
thead .compare__col--us { color: var(--primary) !important; }
.compare__note { margin: 1rem 0 0; color: var(--text-faint); font-size: 0.8125rem; font-style: italic; }

/* ---------- How It Works ---------- */
.how__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.how__step {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.how__num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 1rem;
}
.how__step h3 { font-size: 1.0625rem; margin-bottom: 0.25rem; }
.how__step p { color: var(--text-dim); margin: 0; font-size: 0.9375rem; }

/* ---------- Verticals ---------- */
.verticals__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.tile {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 200ms var(--easing), transform 200ms var(--easing);
}
.tile:hover { border-color: var(--primary); transform: translateY(-2px); }
.tile h3 { font-size: 1.0625rem; margin-bottom: 0.4rem; }
.tile p { color: var(--text-dim); margin: 0; font-size: 0.9375rem; }

/* ---------- Stack ---------- */
.stack__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: -0.5rem;
}
.badge {
  font-family: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--heading);
  letter-spacing: 0.01em;
}

/* ---------- Pricing ---------- */
.pricing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.plan {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}
.plan--featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), 0 24px 48px -16px var(--accent-glow);
  position: relative;
}
.plan--featured::before {
  content: 'Data residency';
  position: absolute;
  top: -10px;
  right: 1.25rem;
  background: var(--primary);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.plan__header { margin-bottom: 1rem; }
.plan__name { font-size: 1.25rem; margin-bottom: 0.25rem; }
.plan__tag { font-size: 0.8125rem; color: var(--text-faint); margin: 0; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.plan__price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 0.25rem;
}
.plan__price-num { font-size: 1.75rem; font-weight: 800; color: var(--heading); letter-spacing: -0.02em; }
.plan__price-unit { color: var(--text-dim); font-size: 0.875rem; }
.plan__retainer { color: var(--text-dim); font-size: 0.9375rem; margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border); }
.plan__features { display: flex; flex-direction: column; gap: 0.625rem; flex: 1; margin-bottom: 1.5rem; }
.plan__features li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text);
  font-size: 0.9375rem;
}
.plan__features li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 8px; height: 8px;
  background: var(--primary);
  border-radius: 2px;
  transform: rotate(45deg);
}
.plan__cta { align-self: flex-start; }

/* ---------- About ---------- */
.about__inner { max-width: 760px; display: flex; gap: 2.5rem; align-items: flex-start; }
.about__photo { width: 160px; height: 160px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 3px solid var(--accent); }
.about__text { flex: 1; }
.about__body { color: var(--text); font-size: 1.0625rem; line-height: 1.75; }
.about__body + .about__body { color: var(--text-dim); }
@media (max-width: 560px) {
  .about__inner { flex-direction: column; align-items: center; }
  .about__photo { width: 120px; height: 120px; }
}

/* ---------- FAQ ---------- */
.faq__list { display: flex; flex-direction: column; gap: 0.625rem; max-width: 820px; }
.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 200ms var(--easing);
}
.faq__item[open] { border-color: var(--primary); }
.faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.125rem 1.25rem;
  font-weight: 600;
  color: var(--heading);
  font-size: 0.9875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background 200ms var(--easing);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '+';
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 200ms var(--easing);
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item summary:hover { background: var(--bg-card-hover); }
.faq__item p {
  padding: 0 1.25rem 1.25rem;
  margin: 0;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ---------- Contact ---------- */
.contact__inner { max-width: 680px; }
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.field input,
.field textarea {
  font-family: inherit;
  font-size: 1rem;
  color: var(--heading);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.75rem 0.875rem;
  width: 100%;
  transition: border-color 160ms var(--easing), box-shadow 160ms var(--easing);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.field textarea { resize: vertical; min-height: 120px; }
.contact__submit { align-self: flex-start; margin-top: 0.25rem; }
.contact__fallback {
  margin-top: 1.25rem;
  color: var(--text-dim);
  font-size: 0.9375rem;
}
.contact__fallback a { color: var(--primary); font-weight: 500; }
.contact__fallback a:hover { color: #60A5FA; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 2.5rem 0 2rem;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
.footer__brand { display: flex; flex-direction: column; gap: 0.25rem; }
.footer__logo { color: var(--heading); font-weight: 700; letter-spacing: -0.02em; }
.footer__tag { color: var(--text-faint); font-size: 0.875rem; }
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.footer__links a {
  font-size: 0.875rem;
  color: var(--text-dim);
}
.footer__legal {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8125rem;
  color: var(--text-faint);
}
.footer__legal a:hover { color: var(--heading); }

/* ===================================================================
   Responsive — mobile first; the rules above target the smallest size.
   =================================================================== */

/* Tablet */
@media (min-width: 640px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .verticals__grid { grid-template-columns: repeat(2, 1fr); }
}

/* Desktop */
@media (min-width: 900px) {
  :root { --gutter: 2rem; }

  .section { padding-block: 7rem; }

  .services__grid { grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
  .services__grid--five { grid-template-columns: repeat(5, 1fr); }
  .verticals__grid { grid-template-columns: repeat(4, 1fr); }
  .pricing__grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }

  .footer__inner {
    grid-template-columns: 1.4fr 1.2fr 1fr;
    gap: 2rem;
  }
  .footer__legal { text-align: right; align-items: flex-end; }
}

/* Mobile nav */
@media (max-width: 899px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem var(--gutter) 1.25rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms var(--easing), transform 200ms var(--easing);
  }
  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__links a {
    padding: 0.875rem 0.25rem;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }
  .nav__links a:last-child { border-bottom: none; }
  .nav__links a.is-active::after { display: none; }
  .nav__cta {
    margin-top: 0.75rem;
    text-align: center;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}