/* =============================================================
   Lumenridge Studio — styles.css
   A small, dependency-free design system.
   Sections:
     1.  Design tokens (custom properties)
     2.  Reset & base
     3.  Layout helpers
     4.  Typography
     5.  Buttons
     6.  Header / navigation
     7.  Hero
     8.  Trust strip
     9.  Sections & cards
     10. Process steps
     11. Work / case studies
     12. Lists (do / don't)
     13. Forms
     14. Footer
     15. Utilities
     16. Motion & responsive
   ============================================================= */

/* 1. Design tokens ------------------------------------------------ */
:root {
  --navy:        #0B1220;
  --navy-soft:   #111b30;
  --slate:       #334155;
  --muted:       #5b6b82;        /* accessible muted text on white */
  --blue:        #3B82F6;        /* accent / decoration */
  --blue-strong: #2563EB;        /* actions & links (AA on white) */
  --blue-deep:   #1D4ED8;
  --pale:        #EAF2FF;
  --warm-white:  #F8FAFC;
  --white:       #ffffff;
  --teal:        #0E9488;        /* sparing accent */
  --border:      #E2E8F0;
  --border-soft: #EEF2F8;

  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(11, 18, 32, .06);
  --shadow:    0 10px 30px -12px rgba(11, 18, 32, .18);
  --shadow-lg: 0 24px 60px -24px rgba(11, 18, 32, .28);

  --maxw: 1120px;
  --gap:  clamp(1rem, 3vw, 2rem);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
          Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;

  --step--1: clamp(.85rem, .82rem + .15vw, .92rem);
  --step-0:  clamp(1rem, .96rem + .2vw, 1.08rem);
  --step-1:  clamp(1.2rem, 1.1rem + .4vw, 1.4rem);
  --step-2:  clamp(1.5rem, 1.3rem + .8vw, 1.95rem);
  --step-3:  clamp(2rem, 1.6rem + 1.7vw, 3rem);
  --step-4:  clamp(2.5rem, 1.9rem + 2.6vw, 3.9rem);
}

/* 2. Reset & base ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--slate);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
  font-weight: 700;
}

p { margin: 0 0 1rem; }

:focus-visible {
  outline: 3px solid var(--blue-strong);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Accessible skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: .75rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* 3. Layout helpers ---------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}

.section { padding-block: clamp(3.5rem, 7vw, 6rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.section--alt { background: var(--warm-white); }
.section--navy {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(59,130,246,.18), transparent 60%),
    linear-gradient(180deg, var(--navy), var(--navy-soft));
  color: #c9d4e6;
}
.section--navy h1, .section--navy h2, .section--navy h3 { color: var(--white); }

.grid { display: grid; gap: var(--gap); }
@media (min-width: 620px)  { .grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 760px)  { .grid--3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .grid--4 { grid-template-columns: repeat(4, 1fr); } }

/* 4. Typography helpers ----------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--blue-strong);
  margin: 0 0 .9rem;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--blue);
  border-radius: 2px;
}
.section--navy .eyebrow { color: #7eb0ff; }

.section-head { max-width: 56ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head--center { margin-inline: auto; text-align: center; }

.h-xl { font-size: var(--step-4); }
.h-lg { font-size: var(--step-3); }
.h-md { font-size: var(--step-2); }
.lead {
  font-size: var(--step-1);
  color: var(--muted);
  line-height: 1.6;
  max-width: 60ch;
}
.section--navy .lead { color: #aab9d1; }

.muted { color: var(--muted); }

/* 5. Buttons ----------------------------------------------------- */
.btn {
  --btn-bg: var(--blue-strong);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .8rem 1.4rem;
  font: inherit;
  font-weight: 600;
  font-size: var(--step-0);
  line-height: 1;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  box-shadow: var(--shadow-sm);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--navy);
  border-color: var(--border);
  box-shadow: none;
}
.btn--ghost:hover { border-color: #cdd8e8; background: var(--warm-white); }

.btn--light {
  --btn-bg: #fff;
  --btn-fg: var(--navy);
}
.btn--outline-light {
  --btn-bg: transparent;
  --btn-fg: #fff;
  border-color: rgba(255,255,255,.35);
  box-shadow: none;
}
.btn--outline-light:hover { background: rgba(255,255,255,.08); }

.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-weight: 600;
}
.arrow-link svg { transition: transform .2s ease; }
.arrow-link:hover svg { transform: translateX(3px); }

/* 6. Header / navigation ---------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand:hover { text-decoration: none; }
.brand__mark { width: 30px; height: 30px; flex: none; }
.brand__name {
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -.02em;
  color: var(--navy);
}
.brand__name span { color: var(--slate); font-weight: 500; }

.nav__links {
  display: flex;
  align-items: center;
  gap: .35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__links a {
  display: inline-block;
  padding: .5rem .8rem;
  border-radius: 999px;
  color: var(--slate);
  font-weight: 500;
  font-size: .98rem;
}
.nav__links a:hover { color: var(--navy); background: var(--warm-white); text-decoration: none; }
.nav__links a[aria-current="page"] { color: var(--blue-strong); background: var(--pale); }

.nav__cta { margin-left: .4rem; }

.nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  color: var(--navy);
}
.nav__toggle svg { width: 22px; height: 22px; }
.nav__toggle .icon-close { display: none; }
.nav__toggle[aria-expanded="true"] .icon-open { display: none; }
.nav__toggle[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }
  .nav__menu {
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: grid;
    gap: .25rem;
    padding: 1rem clamp(1.1rem, 4vw, 2rem) 1.4rem;
    transform-origin: top;
    /* hidden state handled by [hidden] */
  }
  .nav__menu[hidden] { display: none; }
  .nav__links { flex-direction: column; align-items: stretch; gap: .15rem; }
  .nav__links a { padding: .75rem .9rem; border-radius: 12px; }
  .nav__cta { margin: .6rem 0 0; }
  .nav__cta .btn { width: 100%; }
}
@media (min-width: 861px) {
  .nav__menu { display: flex !important; align-items: center; gap: .6rem; }
  .nav__menu[hidden] { display: flex; } /* never hidden on desktop */
}

/* 7. Hero -------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 460px at 78% -8%, rgba(59,130,246,.16), transparent 62%),
    linear-gradient(180deg, var(--warm-white), #fff 70%);
  border-bottom: 1px solid var(--border-soft);
}
.hero__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}
@media (min-width: 920px) {
  .hero__inner { grid-template-columns: 1.05fr .95fr; }
}
.hero h1 { margin-bottom: 1rem; }
.hero .lead { margin-bottom: 1.8rem; }

.hero__meta {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  color: var(--muted);
  font-size: var(--step--1);
}
.hero__meta span { display: inline-flex; align-items: center; gap: .45rem; }
.hero__meta svg { color: var(--teal); }

/* Decorative hero panel */
.hero__art {
  position: relative;
  background: linear-gradient(160deg, var(--navy), var(--navy-soft));
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2rem);
  box-shadow: var(--shadow-lg);
  color: #cfe0ff;
  overflow: hidden;
}
.hero__art::after {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(59,130,246,.5), transparent 65%);
  filter: blur(8px);
}
.hero__window {
  position: relative;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  overflow: hidden;
}
.hero__bar {
  display: flex; gap: .4rem;
  padding: .7rem .9rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.hero__bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.25); }
.hero__bar i:nth-child(1){ background:#ff5f57; } .hero__bar i:nth-child(2){ background:#febc2e; } .hero__bar i:nth-child(3){ background:#28c840; }
.hero__lines { padding: 1.1rem; display: grid; gap: .7rem; }
.hero__lines span { display: block; height: 10px; border-radius: 6px; background: rgba(255,255,255,.12); }
.hero__lines span:nth-child(1){ width: 70%; background: rgba(124,176,255,.5); }
.hero__lines span:nth-child(2){ width: 92%; }
.hero__lines span:nth-child(3){ width: 84%; }
.hero__lines span:nth-child(4){ width: 60%; }
.hero__chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.1rem; }
.hero__chips b {
  font-weight: 600; font-size: .8rem;
  padding: .35rem .7rem; border-radius: 999px;
  background: rgba(124,176,255,.14);
  border: 1px solid rgba(124,176,255,.25);
  color: #dbe8ff;
}

/* 8. Trust strip ------------------------------------------------- */
.trust {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--white);
}
.trust__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding-block: 1.4rem;
}
.trust__item {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--slate);
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: .01em;
}
.trust__item svg { color: var(--blue-strong); flex: none; }

/* 9. Sections & cards ------------------------------------------- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.3rem, 2.5vw, 1.8rem);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  height: 100%;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d6e0ee; }
.card h3 { font-size: var(--step-1); margin-bottom: .5rem; }
.card p { color: var(--muted); margin-bottom: 0; }
.card__icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  margin-bottom: 1rem;
  background: var(--pale);
  color: var(--blue-strong);
}
.card__icon svg { width: 24px; height: 24px; }
.card--link { display: flex; flex-direction: column; }
.card--link .arrow-link { margin-top: 1rem; }

/* feature card (services page detail) */
.feature {
  display: grid;
  gap: 1rem;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.2rem);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 720px) { .feature { grid-template-columns: 56px 1fr; } }
.feature__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: linear-gradient(160deg, var(--pale), #dbe8ff);
  color: var(--blue-deep);
}
.feature h3 { font-size: var(--step-1); }
.feature p:last-child { margin-bottom: 0; }
.feature ul { margin: .6rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.feature li { margin-bottom: .3rem; }

/* 10. Process steps --------------------------------------------- */
.steps { counter-reset: step; }
.step { position: relative; }
.step__num {
  counter-increment: step;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  font-weight: 700;
  color: var(--blue-strong);
  background: var(--pale);
  margin-bottom: .9rem;
}
.step__num::before { content: counter(step, decimal-leading-zero); }
.step h3 { font-size: var(--step-1); margin-bottom: .4rem; }
.step p { color: var(--muted); margin-bottom: 0; }
.section--navy .step__num { background: rgba(124,176,255,.15); color: #9cc0ff; }

/* 11. Work / case studies --------------------------------------- */
.work-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.work-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.work-card__media {
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-soft);
}
.work-card__media--a { background: linear-gradient(150deg, #0B1220, #1c2a4a); }
.work-card__media--b { background: linear-gradient(150deg, #123a8a, #3B82F6); }
.work-card__media--c { background: linear-gradient(150deg, #0e7c74, #14b8a6); }
.work-card__glyph { color: rgba(255,255,255,.92); width: 64px; height: 64px; }
.work-card__body { padding: clamp(1.3rem, 2.5vw, 1.7rem); }
.work-card h3 { font-size: var(--step-1); margin: .6rem 0 .5rem; }
.work-card p { color: var(--muted); margin-bottom: 0; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--blue-deep);
  background: var(--pale);
  border-radius: 999px;
  padding: .3rem .7rem;
}
.tag--demo  { color: var(--blue-deep); background: var(--pale); }
.tag--proto { color: #7c3aed; background: #f1e9ff; }
.tag--sample{ color: var(--teal);  background: #d7f5f0; }

/* full case study block (work page) */
.case {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  box-shadow: var(--shadow-sm);
}
.case + .case { margin-top: var(--gap); }
.case__head { display: grid; gap: 1.4rem; align-items: center; }
@media (min-width: 820px) { .case__head { grid-template-columns: 1fr 1fr; } }
.case__visual {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  display: grid; place-items: center;
}
.case__cols { display: grid; gap: 1.4rem; margin-top: 1.8rem; }
@media (min-width: 720px) { .case__cols { grid-template-columns: repeat(3, 1fr); } }
.case__col h4 {
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--blue-strong);
  margin-bottom: .5rem;
}
.case__col p { color: var(--muted); margin-bottom: 0; }

.notice {
  display: flex;
  gap: .7rem;
  align-items: flex-start;
  background: var(--pale);
  border: 1px solid #d4e3ff;
  color: var(--slate);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  font-size: var(--step--1);
}
.notice svg { color: var(--blue-strong); flex: none; margin-top: 2px; }
.notice p { margin: 0; }

/* 12. Do / don't lists ------------------------------------------ */
.check-list, .cross-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
.check-list li, .cross-list li {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: .7rem;
  align-items: start;
  color: var(--slate);
}
.check-list li::before, .cross-list li::before {
  content: "";
  width: 22px; height: 22px;
  border-radius: 50%;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 14px;
  margin-top: 3px;
}
.check-list li::before {
  background-color: #d7f5ee;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E9488' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
}
.cross-list li::before {
  background-color: #fde8e8;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c0392b' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E");
}

.split { display: grid; gap: var(--gap); }
@media (min-width: 820px) { .split { grid-template-columns: 1fr 1fr; } }
.panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
}
.panel h3 { font-size: var(--step-1); }

/* 13. Forms ------------------------------------------------------ */
.contact-grid { display: grid; gap: var(--gap); align-items: start; }
@media (min-width: 860px) { .contact-grid { grid-template-columns: 1fr 1.2fr; } }

.contact-cards { display: grid; gap: 1rem; }
.contact-cards .card { display: flex; gap: .9rem; align-items: flex-start; }
.contact-cards .card__icon { margin-bottom: 0; flex: none; }
.contact-cards h3 { font-size: var(--step-0); margin-bottom: .15rem; }
.contact-cards p { margin: 0; }

.form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.2rem);
  box-shadow: var(--shadow);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: .4rem;
  font-size: .95rem;
}
.field .req { color: #c0392b; }
.field input,
.field textarea {
  width: 100%;
  font: inherit;
  color: var(--navy);
  background: var(--warm-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .75rem .9rem;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--blue-strong);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192,57,43,.12);
}
.field .error {
  display: none;
  color: #c0392b;
  font-size: var(--step--1);
  margin-top: .35rem;
}
.field .error.show { display: block; }

.form__note { font-size: var(--step--1); color: var(--muted); margin-top: .8rem; }

.form-status {
  display: none;
  margin-top: 1.1rem;
  padding: 1rem 1.2rem;
  border-radius: 12px;
  background: #e8f7f1;
  border: 1px solid #b8e6d6;
  color: #0c5e4c;
}
.form-status.show { display: flex; gap: .6rem; align-items: flex-start; }
.form-status svg { flex: none; margin-top: 2px; }
.form-status a { color: #0c5e4c; font-weight: 600; }

/* 14. Footer ----------------------------------------------------- */
.site-footer {
  background:
    radial-gradient(900px 400px at 12% -30%, rgba(59,130,246,.16), transparent 60%),
    var(--navy);
  color: #9fb0c9;
  padding-block: clamp(2.8rem, 6vw, 4rem) 1.8rem;
  font-size: var(--step--1);
}
.footer__top {
  display: grid;
  gap: 2rem;
}
@media (min-width: 760px) {
  .footer__top { grid-template-columns: 1.5fr 1fr 1fr; }
}
.footer__brand .brand__name { color: #fff; }
.footer__brand .brand__name span { color: #9fb0c9; }
.footer__desc { margin: 1rem 0 1.2rem; max-width: 38ch; color: #9fb0c9; }
.footer__meta { display: grid; gap: .5rem; }
.footer__meta a { color: #cfe0ff; }
.footer__meta span { display: inline-flex; align-items: center; gap: .5rem; }
.footer__meta svg { color: #7eb0ff; flex: none; }

.footer__col h4 {
  color: #fff;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 1rem;
}
.footer__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.footer__col a { color: #9fb0c9; }
.footer__col a:hover { color: #fff; }

.footer__bottom {
  margin-top: 2.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.4rem;
  align-items: center;
  justify-content: space-between;
  color: #7e8da6;
}
.footer__bottom nav { display: flex; flex-wrap: wrap; gap: 1.1rem; }
.footer__bottom a { color: #7e8da6; }
.footer__bottom a:hover { color: #fff; }

/* 15. Utilities -------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.stack > * + * { margin-top: 1rem; }
.flow > * + * { margin-top: clamp(1rem, 2vw, 1.4rem); }
.prose { max-width: 70ch; }
.prose h2 { font-size: var(--step-2); margin-top: 2.4rem; }
.prose h3 { font-size: var(--step-1); margin-top: 1.8rem; }
.prose ul { padding-left: 1.2rem; color: var(--slate); }
.prose li { margin-bottom: .5rem; }
.prose a { font-weight: 600; }

.cta-band {
  text-align: center;
  border-radius: var(--radius-lg);
  padding: clamp(2.2rem, 5vw, 3.5rem);
  background:
    radial-gradient(700px 300px at 50% -40%, rgba(59,130,246,.28), transparent 60%),
    linear-gradient(180deg, var(--navy), var(--navy-soft));
  color: #cdd9ec;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; }
.cta-band .lead { margin-inline: auto; color: #aebfda; }
.cta-band .btn-row { justify-content: center; margin-top: 1.6rem; }

/* 16. Motion & reveal ------------------------------------------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .work-card { transition: none; }
}