/* ==========================================================================
   Civic Refactored — Design System
   Blueprint / title-block visual language. IBM Plex Mono + IBM Plex Sans.
   ========================================================================== */

:root {
  --paper: #EFF1EC;
  --ink: #16191C;
  --ledger-navy: #0F2A43;
  --blueprint-cyan: #1C6E8C;
  --blueprint-cyan-dark: #175A73; /* AA-safe link color at body size */
  --rule-gray: #8B9490;
  --brass: #B8863E;

  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-content: 68ch;
  --max-wide: 78rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

/* ---------------------------------------------------------------------- */
/* Reset                                                                   */
/* ---------------------------------------------------------------------- */

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--blueprint-cyan-dark);
}

a:not(.btn):not(.nav__link):not(.footer__link) {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-mono);
  font-weight: 600;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
  color: var(--ledger-navy);
}

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  line-height: 1.2;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.3;
}

p {
  margin: 0 0 var(--space-2);
}

.section-navy h1,
.section-navy h2,
.section-navy h3 {
  color: var(--paper);
}

/* Visible keyboard focus rings everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--blueprint-cyan);
  outline-offset: 2px;
}

@media (min-width: 64rem) {
  h1 { font-size: 2.875rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.4375rem; }
}

/* ---------------------------------------------------------------------- */
/* Utility                                                                 */
/* ---------------------------------------------------------------------- */

.wrap {
  max-width: var(--max-wide);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.prose {
  max-width: var(--max-content);
}

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--blueprint-cyan);
  margin-bottom: var(--space-2);
}

.section-navy .eyebrow {
  color: var(--brass);
}

.section {
  padding-block: var(--space-5);
}

.section-navy {
  background: var(--ledger-navy);
  color: var(--paper);
}

.section-navy p {
  color: var(--paper);
}

.hairline {
  border: none;
  border-top: 1px solid var(--rule-gray);
  margin: var(--space-5) 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -3rem;
  background: var(--paper);
  color: var(--ink);
  padding: 0.6em 1em;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  z-index: 200;
  border: 1px solid var(--blueprint-cyan);
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: var(--space-2);
}

/* ---------------------------------------------------------------------- */
/* Buttons / CTAs                                                          */
/* ---------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.75em 1.25em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn--primary {
  background: var(--blueprint-cyan);
  color: var(--paper);
  border-color: var(--blueprint-cyan);
}

.btn--primary:hover {
  background: var(--blueprint-cyan-dark);
  border-color: var(--blueprint-cyan-dark);
}

.btn--outline {
  background: transparent;
  color: var(--ledger-navy);
  border-color: var(--ledger-navy);
}

.btn--outline:hover {
  background: var(--ledger-navy);
  color: var(--paper);
}

.section-navy .btn--outline {
  color: var(--paper);
  border-color: var(--paper);
}

.section-navy .btn--outline:hover {
  background: var(--paper);
  color: var(--ledger-navy);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.link-arrow:hover {
  border-bottom-color: var(--brass);
}

/* ---------------------------------------------------------------------- */
/* Header / Nav                                                            */
/* ---------------------------------------------------------------------- */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule-gray);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}

.wordmark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.0625rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--ledger-navy);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.35em;
}

.wordmark__mark {
  color: var(--blueprint-cyan);
  font-weight: 600;
}

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--ledger-navy);
  padding: 0.5em 0.7em;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ledger-navy);
  cursor: pointer;
}

.nav__body {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__links {
  display: flex;
  gap: var(--space-3);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--ink);
  padding-block: 0.25em;
  border-bottom: 1px solid transparent;
}

.nav__link:hover {
  color: var(--blueprint-cyan-dark);
}

.nav__link[aria-current="page"] {
  color: var(--blueprint-cyan-dark);
  border-bottom-color: var(--brass);
}

@media (max-width: 55.99rem) {
  .nav__toggle {
    display: inline-block;
  }

  .nav__body {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule-gray);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--space-3) var(--space-3);
    display: none;
  }

  .nav__body.is-open {
    display: flex;
  }

  .nav__links {
    flex-direction: column;
    gap: 0;
  }

  .nav__link {
    padding-block: 0.75em;
    border-bottom: 1px solid var(--rule-gray);
  }

  .nav .btn--primary {
    margin-top: var(--space-2);
    justify-content: center;
  }
}

/* ---------------------------------------------------------------------- */
/* Hero                                                                     */
/* ---------------------------------------------------------------------- */

.hero {
  background: var(--ledger-navy);
  color: var(--paper);
  padding-block: var(--space-6) var(--space-5);
}

.hero h1 {
  color: var(--paper);
  max-width: 18ch;
}

.hero__subhead {
  max-width: var(--max-content);
  font-size: 1.125rem;
  color: var(--paper);
  opacity: 0.92;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-header {
  padding-block: var(--space-5) var(--space-3);
}

.page-header h1 {
  max-width: 22ch;
}

/* ---------------------------------------------------------------------- */
/* Spec plate                                                              */
/* ---------------------------------------------------------------------- */

.spec-plate {
  border: 1px solid var(--blueprint-cyan);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin-block: var(--space-4);
}

.spec-plate__row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: var(--space-2);
  padding: 0.65em var(--space-2);
}

.spec-plate__row + .spec-plate__row {
  border-top: 1px solid var(--rule-gray);
}

.spec-plate__label {
  color: var(--blueprint-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.spec-plate__value {
  color: var(--ink);
}

@media (max-width: 30rem) {
  .spec-plate__row {
    grid-template-columns: 1fr;
    gap: 0.2em;
  }
}

/* ---------------------------------------------------------------------- */
/* Grids / columns                                                         */
/* ---------------------------------------------------------------------- */

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 55.99rem) {
  .grid--3,
  .grid--2 {
    grid-template-columns: 1fr;
  }
}

.card {
  border-top: 1px solid var(--brass);
  padding-top: var(--space-2);
}

.card h3 {
  margin-bottom: var(--space-1);
}

/* ---------------------------------------------------------------------- */
/* Process diagram (Assess / Modernize / Sustain)                          */
/* ---------------------------------------------------------------------- */

.process {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-block: var(--space-4);
}

.process__node {
  flex: 1;
  text-align: center;
}

.process__marker {
  width: 2.5rem;
  height: 2.5rem;
  margin-inline: auto var(--space-1);
  border: 1px solid var(--blueprint-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--blueprint-cyan);
  background: var(--paper);
}

.section-navy .process__marker {
  background: var(--ledger-navy);
}

.process__label {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-top: var(--space-1);
}

.process__connector {
  flex: 0 0 auto;
  width: 3rem;
  height: 1px;
  background: var(--rule-gray);
  margin-top: 1.25rem;
}

.process__desc {
  font-size: 0.9375rem;
  color: var(--rule-gray);
  max-width: 22ch;
  margin-inline: auto;
}

.section-navy .process__desc {
  color: var(--paper);
  opacity: 0.85;
}

@media (max-width: 40rem) {
  .process {
    flex-direction: column;
    align-items: stretch;
  }

  .process__connector {
    width: 1px;
    height: 2rem;
    margin-inline: auto;
  }

  .process__node {
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .process__marker {
    margin-inline: 0;
    flex-shrink: 0;
  }

  .process__desc {
    margin-inline: 0;
  }
}

/* Detailed stage blocks on /what-we-do */
.stage {
  padding-block: var(--space-3);
}

.stage + .stage {
  border-top: 1px solid var(--rule-gray);
}

.stage__number {
  font-family: var(--font-mono);
  color: var(--blueprint-cyan);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
}

/* ---------------------------------------------------------------------- */
/* Service sections (alternating, /what-we-do)                             */
/* ---------------------------------------------------------------------- */

.service {
  padding-block: var(--space-4);
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: var(--space-3);
}

.service + .service {
  border-top: 1px solid var(--rule-gray);
}

.service__index {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  color: var(--rule-gray);
  line-height: 1;
}

@media (max-width: 40rem) {
  .service {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .service__index {
    font-size: 1.5rem;
  }
}

/* ---------------------------------------------------------------------- */
/* Lists (Why Us differentiators)                                          */
/* ---------------------------------------------------------------------- */

.check-list li {
  display: flex;
  gap: var(--space-2);
  padding-block: var(--space-2);
  border-top: 1px solid var(--rule-gray);
}

.check-list li:last-child {
  border-bottom: 1px solid var(--rule-gray);
}

.check-list__mark {
  font-family: var(--font-mono);
  color: var(--brass);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------- */
/* Closing CTA band                                                        */
/* ---------------------------------------------------------------------- */

.closing-cta {
  text-align: center;
  padding-block: var(--space-5);
}

.closing-cta h2 {
  max-width: 24ch;
  margin-inline: auto;
}

.closing-cta .btn {
  margin-top: var(--space-2);
}

/* ---------------------------------------------------------------------- */
/* Contact page                                                            */
/* ---------------------------------------------------------------------- */

.contact-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

@media (max-width: 55.99rem) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.form-field {
  margin-bottom: var(--space-3);
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ledger-navy);
  margin-bottom: 0.5em;
}

.form-field input,
.form-field textarea {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--rule-gray);
  padding: 0.75em;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--ink);
}

.form-field textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--blueprint-cyan);
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin-top: var(--space-2);
  padding: 0.75em 1em;
  border: 1px solid var(--rule-gray);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-success {
  border-color: var(--blueprint-cyan);
  color: var(--blueprint-cyan-dark);
}

.form-status.is-error {
  border-color: var(--brass);
  color: var(--ink);
}

.contact-sidebar {
  border-left: 1px solid var(--rule-gray);
  padding-left: var(--space-3);
}

.contact-sidebar h3 {
  font-size: 1rem;
}

.contact-sidebar p {
  font-size: 0.9375rem;
  color: var(--ink);
}

.contact-sidebar a {
  font-family: var(--font-mono);
}

@media (max-width: 55.99rem) {
  .contact-sidebar {
    border-left: none;
    border-top: 1px solid var(--rule-gray);
    padding-left: 0;
    padding-top: var(--space-3);
  }
}

/* ---------------------------------------------------------------------- */
/* Footer                                                                   */
/* ---------------------------------------------------------------------- */

.site-footer {
  background: var(--ledger-navy);
  color: var(--paper);
  padding-block: var(--space-5) var(--space-3);
}

.site-footer .wordmark {
  color: var(--paper);
}

.footer__tagline {
  color: var(--paper);
  opacity: 0.85;
  font-size: 0.9375rem;
  margin-top: var(--space-1);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-block: var(--space-4);
}

.footer__link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--paper);
  opacity: 0.85;
}

.footer__link:hover {
  opacity: 1;
  color: var(--brass);
}

.footer__meta {
  border-top: 1px solid rgba(239, 241, 236, 0.2);
  padding-top: var(--space-3);
  font-size: 0.8125rem;
  color: var(--paper);
  opacity: 0.7;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  justify-content: space-between;
}

.footer__meta a {
  color: var(--paper);
}

/* ---------------------------------------------------------------------- */
/* Scroll-reveal (progressive enhancement, JS adds .is-visible)            */
/* ---------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* ---------------------------------------------------------------------- */
/* 404                                                                      */
/* ---------------------------------------------------------------------- */

.not-found {
  padding-block: var(--space-6);
  text-align: center;
}

.not-found .spec-plate {
  margin-inline: auto;
  max-width: 28rem;
  text-align: left;
}