/* ==========================================================================
   Charbonneau Technologies — Design System
   Single stylesheet, self-contained (no external fonts or CDNs).
   ========================================================================== */

/* --- Design tokens ------------------------------------------------------- */
:root {
  /* Brand palette */
  --navy-900: #0a1b2b;
  --navy-800: #0c2233;
  --navy-700: #12324a;
  --navy-600: #184063;
  --steel-500: #1f5a86;
  --steel-400: #2f74a8;
  --steel-300: #5b9bc7;
  --copper-600: #b5652f;
  --copper-500: #cf7a3c;
  --copper-400: #e0925a;

  /* Neutrals */
  --ink: #10202e;
  --slate-700: #33475b;
  --slate-500: #5a6b7b;
  --slate-400: #7a8896;
  --slate-300: #aeb9c3;
  --line: #e2e8ee;
  --line-strong: #cdd7e0;
  --surface: #ffffff;
  --surface-2: #f4f7fa;
  --surface-3: #eaf0f5;
  --paper: #fbfcfd;

  /* Semantic */
  --bg: var(--paper);
  --text: var(--ink);
  --muted: var(--slate-500);
  --primary: var(--steel-500);
  --primary-strong: var(--navy-700);
  --accent: var(--copper-500);

  /* Typography */
  --font-sans: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
    "Times New Roman", serif;

  /* Scale */
  --step--1: clamp(0.82rem, 0.8rem + 0.1vw, 0.9rem);
  --step-0: clamp(1rem, 0.97rem + 0.15vw, 1.075rem);
  --step-1: clamp(1.2rem, 1.13rem + 0.35vw, 1.4rem);
  --step-2: clamp(1.45rem, 1.32rem + 0.65vw, 1.85rem);
  --step-3: clamp(1.75rem, 1.5rem + 1.2vw, 2.5rem);
  --step-4: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);
  --step-5: clamp(2.5rem, 1.7rem + 3.8vw, 4.4rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --container: 1160px;
  --container-narrow: 800px;
  --radius: 10px;
  --radius-lg: 18px;
  --radius-sm: 6px;

  --shadow-sm: 0 1px 2px rgba(12, 34, 51, 0.06),
    0 1px 3px rgba(12, 34, 51, 0.08);
  --shadow-md: 0 6px 16px -6px rgba(12, 34, 51, 0.16),
    0 2px 6px rgba(12, 34, 51, 0.06);
  --shadow-lg: 0 24px 48px -18px rgba(10, 27, 43, 0.28),
    0 8px 20px -12px rgba(10, 27, 43, 0.18);

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

/* --- Reset --------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}
body {
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: var(--steel-400);
  text-decoration: none;
}
a:hover {
  color: var(--copper-600);
}
h1,
h2,
h3,
h4 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--navy-800);
}
ul,
ol {
  padding-left: 1.2em;
}
:focus-visible {
  outline: 3px solid var(--copper-500);
  outline-offset: 2px;
  border-radius: 3px;
}

/* --- Layout -------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}
.narrow {
  max-width: var(--container-narrow);
}
.section {
  padding-block: clamp(3.25rem, 6vw, 5.5rem);
}
.section-tight {
  padding-block: clamp(2.25rem, 4vw, 3.5rem);
}
.grid {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 720px) {
  .cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-800);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* --- Typographic helpers ------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper-600);
}
.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: var(--copper-500);
  border-radius: 2px;
}
.section-head {
  max-width: 46rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.section-head h2 {
  font-size: var(--step-3);
  margin-top: 0.6rem;
}
.section-head p {
  color: var(--muted);
  font-size: var(--step-1);
  margin-top: 0.85rem;
}
.lead {
  font-size: var(--step-1);
  color: var(--slate-700);
}
.text-center {
  text-align: center;
}
.text-center .eyebrow,
.text-center .section-head {
  margin-inline: auto;
}
.text-center .eyebrow::before {
  display: none;
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  --btn-bg: var(--navy-800);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font: inherit;
  font-weight: 600;
  line-height: 1;
  padding: 0.85em 1.5em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background 0.18s var(--ease), color 0.18s var(--ease);
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--btn-fg);
}
.btn-primary {
  --btn-bg: var(--copper-500);
}
.btn-primary:hover {
  --btn-bg: var(--copper-600);
}
.btn-dark {
  --btn-bg: var(--navy-800);
}
.btn-dark:hover {
  --btn-bg: var(--navy-700);
}
.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--navy-800);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  --btn-bg: var(--surface-2);
  --btn-fg: var(--navy-800);
  border-color: var(--slate-300);
}
.btn-light {
  --btn-bg: #fff;
  --btn-fg: var(--navy-800);
}
.btn-light:hover {
  --btn-fg: var(--navy-900);
}
.btn-outline-light {
  --btn-bg: transparent;
  --btn-fg: #eaf2f8;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-outline-light:hover {
  --btn-bg: rgba(255, 255, 255, 0.08);
  --btn-fg: #fff;
}
.btn-sm {
  padding: 0.6em 1.1em;
  font-size: var(--step--1);
}
.btn-lg {
  padding: 1em 1.8em;
  font-size: var(--step-1);
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  color: var(--steel-500);
}
.arrow-link svg {
  transition: transform 0.2s var(--ease);
}
.arrow-link:hover svg {
  transform: translateX(4px);
}

/* --- Header / nav -------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 252, 253, 0.82);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--navy-800);
  font-weight: 600;
}
.brand:hover {
  color: var(--navy-800);
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex: none;
}
.brand-text {
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  line-height: 1.05;
}
.brand-text strong {
  font-weight: 700;
}
.brand-text span {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper-600);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.site-nav a:not(.btn) {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--slate-700);
  font-weight: 600;
  font-size: 0.97rem;
}
.site-nav a:not(.btn):hover {
  color: var(--navy-800);
  background: var(--surface-2);
}
.site-nav a[aria-current="page"] {
  color: var(--navy-800);
}
.site-nav a[aria-current="page"]:not(.btn) {
  box-shadow: inset 0 -2px 0 var(--copper-500);
  border-radius: 0;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.6rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy-800);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 1rem clamp(1.1rem, 4vw, 2rem) 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    transition: transform 0.3s var(--ease);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .site-nav.open {
    transform: translateY(0);
  }
  .site-nav a:not(.btn) {
    padding: 0.8rem 0.75rem;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .site-nav .btn {
    margin-top: 0.6rem;
  }
}

/* --- Hero ---------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(
      120% 130% at 85% -10%,
      var(--navy-600) 0%,
      var(--navy-800) 45%,
      var(--navy-900) 100%
    );
  color: #e7eef4;
  isolation: isolate;
}
.hero::before {
  /* engineering grid */
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(120% 90% at 70% 0%, #000 30%, transparent 80%);
  z-index: -1;
}
.hero::after {
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  right: -180px;
  top: -160px;
  background: radial-gradient(
    circle,
    rgba(207, 122, 60, 0.22) 0%,
    transparent 62%
  );
  z-index: -1;
}
.hero-inner {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  align-items: center;
}
@media (min-width: 940px) {
  .hero-inner {
    grid-template-columns: 1.05fr 0.95fr;
  }
}
.hero h1 {
  color: #fff;
  font-size: var(--step-5);
  letter-spacing: -0.02em;
}
.hero .eyebrow {
  color: var(--copper-400);
}
.hero .eyebrow::before {
  background: var(--copper-400);
}
.hero p {
  color: #b9cad8;
  font-size: var(--step-1);
  max-width: 34rem;
  margin-top: 1.25rem;
}
.hero .btn-row {
  margin-top: 2rem;
}
.hero-meta {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  color: #9fb4c4;
  font-size: var(--step--1);
}
.hero-meta strong {
  color: #fff;
  display: block;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

/* Hero visual card */
.hero-visual {
  position: relative;
}
.panel {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.09),
    rgba(255, 255, 255, 0.03)
  );
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(4px);
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #cddae6;
  font-size: var(--step--1);
  font-weight: 600;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 1rem;
}
.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #56d18b;
  box-shadow: 0 0 0 3px rgba(86, 209, 139, 0.2);
}
.panel-rows {
  display: grid;
  gap: 0.7rem;
}
.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  font-size: 0.92rem;
  color: #d6e2ec;
}
.panel-row .tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}
.tag-green {
  background: rgba(86, 209, 139, 0.16);
  color: #7ee0a6;
}
.tag-amber {
  background: rgba(224, 146, 90, 0.18);
  color: var(--copper-400);
}
.tag-blue {
  background: rgba(91, 155, 199, 0.18);
  color: var(--steel-300);
}

/* --- Cards --------------------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease),
    border-color 0.22s var(--ease);
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.card h3 {
  font-size: var(--step-1);
  margin-bottom: 0.5rem;
}
.card p {
  color: var(--muted);
}
.icon-badge {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: linear-gradient(160deg, var(--surface-3), var(--surface-2));
  border: 1px solid var(--line);
  color: var(--steel-500);
  margin-bottom: 1.1rem;
}
.icon-badge svg {
  width: 26px;
  height: 26px;
}
.card-accent {
  border-top: 3px solid var(--copper-500);
}

/* Feature list with checks */
.feature-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.feature-list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--slate-700);
}
.feature-list li::before {
  content: "";
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: var(--surface-3)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23cf7a3c' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E")
    center / 13px no-repeat;
}

/* Pill / chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chip {
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--slate-700);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
}

/* --- Logo strip / trust -------------------------------------------------- */
.band {
  background: var(--surface-2);
  border-block: 1px solid var(--line);
}
.band-dark {
  background: var(--navy-800);
  color: #d6e2ec;
}
.band-dark h2 {
  color: #fff;
}

/* Split feature (product) */
.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (min-width: 900px) {
  .split {
    grid-template-columns: 1fr 1fr;
  }
  .split.reverse .split-media {
    order: -1;
  }
}
.split-media .panel-lite {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.4rem;
}
.mini-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  margin-bottom: 0.7rem;
}
.mini-row:last-child {
  margin-bottom: 0;
}
.mini-ico {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--navy-800);
  color: #fff;
  flex: none;
}
.mini-ico svg {
  width: 20px;
  height: 20px;
}
.mini-row b {
  color: var(--navy-800);
  display: block;
  font-size: 0.95rem;
}
.mini-row span {
  color: var(--muted);
  font-size: 0.85rem;
}

/* --- Stats --------------------------------------------------------------- */
.stat {
  text-align: center;
}
.stat b {
  display: block;
  font-size: var(--step-4);
  color: var(--navy-800);
  letter-spacing: -0.03em;
  font-weight: 800;
}
.stat span {
  color: var(--muted);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

/* --- CTA ----------------------------------------------------------------- */
.cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: radial-gradient(
      120% 160% at 0% 0%,
      var(--steel-500) 0%,
      var(--navy-700) 45%,
      var(--navy-900) 100%
    );
  color: #fff;
  padding: clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
}
.cta h2 {
  color: #fff;
  font-size: var(--step-3);
}
.cta p {
  color: #c2d2df;
  max-width: 40rem;
  margin: 1rem auto 2rem;
  font-size: var(--step-1);
}
.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(80% 120% at 100% 0%, #000, transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.cta > * {
  position: relative;
  z-index: 1;
}

/* --- Footer -------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: #a9bccb;
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  }
}
.site-footer h4 {
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.site-footer a {
  color: #a9bccb;
}
.site-footer a:hover {
  color: #fff;
}
.footer-links {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  font-size: 0.95rem;
}
.footer-brand .brand-text,
.footer-brand .brand {
  color: #fff;
}
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.95rem;
  max-width: 22rem;
}
.footer-brand .brand-text strong {
  color: #fff;
}
.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #7f95a6;
}
.footer-bottom a {
  color: #7f95a6;
}
.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* --- Page hero (interior) ------------------------------------------------ */
.page-hero {
  background: linear-gradient(180deg, var(--navy-800), var(--navy-900));
  color: #dbe6ef;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.035) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(90% 140% at 80% 0%, #000, transparent 75%);
}
.page-hero-inner {
  position: relative;
  padding-block: clamp(3rem, 6vw, 5rem);
  max-width: 52rem;
}
.page-hero h1 {
  color: #fff;
  font-size: var(--step-4);
  margin-top: 0.6rem;
}
.page-hero p {
  color: #b9cad8;
  font-size: var(--step-1);
  margin-top: 1rem;
}
.page-hero .eyebrow {
  color: var(--copper-400);
}
.page-hero .eyebrow::before {
  background: var(--copper-400);
}

/* Breadcrumb */
.crumb {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: var(--step--1);
  color: var(--muted);
  padding-block: 1rem;
}
.crumb a {
  color: var(--muted);
}
.crumb a:hover {
  color: var(--copper-600);
}
.crumb span {
  color: var(--slate-400);
}

/* --- Industries ---------------------------------------------------------- */
.tile {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  overflow: hidden;
  background: var(--navy-700);
  border: 1px solid var(--navy-600);
}
.tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 120% at 100% 0%,
    rgba(207, 122, 60, 0.25),
    transparent 60%
  );
}
.tile svg {
  position: absolute;
  top: 1.3rem;
  left: 1.4rem;
  width: 30px;
  height: 30px;
  color: var(--copper-400);
}
.tile h3 {
  color: #fff;
  position: relative;
  font-size: var(--step-1);
}
.tile p {
  color: #b9cad8;
  position: relative;
  font-size: 0.92rem;
  margin-top: 0.3rem;
}

/* --- Definition / process ------------------------------------------------ */
.steps {
  counter-reset: step;
  display: grid;
  gap: 1.25rem;
}
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  align-items: start;
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--copper-500);
  background: var(--surface-2);
  border: 1px solid var(--line);
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
}
.step h3 {
  font-size: var(--step-1);
  margin-bottom: 0.25rem;
}
.step p {
  color: var(--muted);
}

/* --- Contact ------------------------------------------------------------- */
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.4rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.contact-card .icon-badge {
  margin-bottom: 0;
}
.contact-card b {
  color: var(--navy-800);
  display: block;
}
.contact-card a {
  color: var(--steel-500);
  font-weight: 600;
}
.form-grid {
  display: grid;
  gap: 1.1rem;
}
@media (min-width: 620px) {
  .form-row-2 {
    grid-template-columns: 1fr 1fr;
  }
}
label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy-800);
  display: block;
  margin-bottom: 0.4rem;
}
input,
textarea,
select {
  width: 100%;
  font: inherit;
  color: var(--ink);
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--steel-400);
  box-shadow: 0 0 0 3px rgba(47, 116, 168, 0.16);
}

/* --- Legal / document reading layout ------------------------------------- */
.doc-layout {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 940px) {
  .doc-layout {
    grid-template-columns: 250px 1fr;
    align-items: start;
  }
}
.doc-toc {
  position: sticky;
  top: 90px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-sm);
  font-size: 0.92rem;
}
.doc-toc h4 {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.85rem;
}
.doc-toc ol {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  counter-reset: toc;
}
.doc-toc a {
  color: var(--slate-700);
  display: block;
  padding-left: 0.1rem;
}
.doc-toc a:hover {
  color: var(--copper-600);
}
@media (max-width: 939px) {
  .doc-toc {
    position: static;
  }
}
.doc-body {
  max-width: 70ch;
  font-size: 1.02rem;
}
.doc-body h2 {
  font-size: var(--step-2);
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}
.doc-body h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.doc-body h3 {
  font-size: var(--step-1);
  margin-top: 1.75rem;
}
.doc-body p,
.doc-body li {
  color: var(--slate-700);
}
.doc-body p {
  margin-top: 0.9rem;
}
.doc-body ul,
.doc-body ol {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.5rem;
}
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  font-size: 0.9rem;
}
.doc-meta div {
  color: var(--muted);
}
.doc-meta b {
  color: var(--navy-800);
  display: block;
}
.doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.25rem;
}
.notice {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: rgba(224, 146, 90, 0.1);
  border: 1px solid rgba(207, 122, 60, 0.3);
  color: var(--copper-600);
  font-size: 0.92rem;
  margin-bottom: 2rem;
}
.notice svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 0.15rem;
}
/* Draft state — stronger, unmistakable caution styling */
.notice.draft {
  background: rgba(200, 42, 52, 0.09);
  border-color: rgba(200, 42, 52, 0.4);
  color: #a3222b;
  font-size: 0.95rem;
}
.notice.draft strong {
  letter-spacing: 0.02em;
}
.draft-pill {
  display: inline-block;
  margin-left: 0.65rem;
  vertical-align: middle;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: #fff;
  background: #c22a34;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  box-shadow: 0 2px 8px -2px rgba(194, 42, 52, 0.5);
}

/* Legal index list */
.doc-list {
  display: grid;
  gap: 1rem;
}
.doc-list-item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.3rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease);
}
.doc-list-item:hover {
  transform: translateX(4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}
.doc-list-item .icon-badge {
  margin-bottom: 0;
  flex: none;
}
.doc-list-item .doc-info {
  flex: 1;
}
.doc-list-item h3 {
  font-size: var(--step-1);
  margin-bottom: 0.2rem;
}
.doc-list-item p {
  color: var(--muted);
  font-size: 0.92rem;
}
.doc-list-item .pages {
  font-size: 0.8rem;
  color: var(--slate-400);
  white-space: nowrap;
}

/* --- Utilities ----------------------------------------------------------- */
.mt-0 {
  margin-top: 0;
}
.mt-2 {
  margin-top: var(--space-4);
}
.mt-4 {
  margin-top: var(--space-6);
}
.muted {
  color: var(--muted);
}
.divider {
  height: 1px;
  background: var(--line);
  border: 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .doc-toc,
  .doc-actions,
  .notice,
  .crumb,
  .nav-toggle {
    display: none !important;
  }
  .doc-layout {
    display: block;
  }
  body {
    background: #fff;
  }
}