/* =========================================================
   Litra Consulting — Design System
   Editorial minimalism · Warm B2B · Calm authority
   ========================================================= */

:root {
  /* Brand palette — confirmed in Eraa Brand Colour Palette Guide */
  --ember-dark: #2A1810;
  --thermal-red: #B84035;
  --heat-amber: #E8941A;
  --heritage-gold: #E2AC4A;
  --spark-yellow: #FFD93D;
  --warm-white: #FAF8F5;

  /* Derived tokens */
  --ember-soft: rgba(42, 24, 16, 0.62);
  --ember-quiet: rgba(42, 24, 16, 0.42);
  --ember-faint: rgba(42, 24, 16, 0.16);
  --ember-trace: rgba(42, 24, 16, 0.08);
  --amber-soft: rgba(232, 148, 26, 0.18);

  /* Typography scale */
  --type-display: clamp(2.4rem, 5.6vw, 4.8rem);
  --type-h1: clamp(2.0rem, 4.4vw, 3.6rem);
  --type-h2: clamp(1.5rem, 2.8vw, 2.1rem);
  --type-h3: 1.25rem;
  --type-body: 1.0625rem;
  --type-small: 0.875rem;
  --type-micro: 0.75rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;
  --space-xxl: 10rem;

  /* Layout */
  --container: 1180px;
  --container-narrow: 720px;
  --container-prose: 640px;
}

/* =========================================================
   Reset & base
   ========================================================= */

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

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

body {
  font-family: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--type-body);
  line-height: 1.6;
  font-weight: 400;
  color: var(--ember-dark);
  background: var(--warm-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:focus-visible {
  outline: 2px solid var(--heat-amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* =========================================================
   Typography
   ========================================================= */

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember-dark);
  margin-bottom: var(--space-md);
  display: block;
}

.eyebrow--amber { color: var(--thermal-red); }

h1, h2, h3, h4 {
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ember-dark);
}

h1.display {
  font-size: var(--type-display);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
  max-width: 18ch;
}

h1 {
  font-size: var(--type-h1);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  max-width: 22ch;
}

h2 {
  font-size: var(--type-h2);
  font-weight: 500;
  max-width: 28ch;
}

h3 {
  font-size: var(--type-h3);
  font-weight: 600;
  letter-spacing: -0.005em;
}

p {
  max-width: 62ch;
  margin-bottom: var(--space-sm);
}

p.lede {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--ember-dark);
  max-width: 52ch;
}

.prose p { margin-bottom: 1.1em; }
.prose p:last-child { margin-bottom: 0; }

.prose strong { font-weight: 600; color: var(--ember-dark); }

/* =========================================================
   Header
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ember-trace);
}

.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.25rem var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.7rem;
  text-decoration: none;
  line-height: 1;
}

.wordmark__name {
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ember-dark);
  line-height: 1;
}

.wordmark__tag {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--heat-amber);
  line-height: 1;
  position: relative;
  top: -0.05em;
}

.site-nav {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.site-nav a {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ember-dark);
  position: relative;
  padding: 0.25rem 0;
}

.site-nav a:hover { color: var(--thermal-red); }

.site-nav a.is-active {
  color: var(--ember-dark);
  font-weight: 700;
}

.site-nav a.is-active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--heat-amber);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--ember-dark);
}

.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--warm-white);
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--ember-trace);
  }
  .site-nav.is-open { display: flex; }
  .nav-toggle { display: block; }
}

/* =========================================================
   Container & sections
   ========================================================= */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

section { padding: var(--space-xl) 0; }
section.tight { padding: var(--space-lg) 0; }

/* =========================================================
   Hero
   ========================================================= */

.hero {
  padding: clamp(5rem, 10vh, 8rem) 0 var(--space-xl);
  position: relative;
  overflow: hidden;
}

.hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
  z-index: 1;
}

.hero__lede {
  margin-top: var(--space-md);
  max-width: 48ch;
}

.hero__cta {
  margin-top: var(--space-lg);
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

/* Subtle hero pattern — meter dots */
.hero__motif {
  position: absolute;
  top: 50%;
  right: -2rem;
  transform: translateY(-50%);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 1024px) {
  .hero__motif { opacity: 0.18; }
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.85rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn--primary {
  background: var(--ember-dark);
  color: var(--warm-white);
}

.btn--primary:hover {
  background: var(--thermal-red);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--ember-dark);
  border-color: var(--ember-faint);
}

.btn--ghost:hover {
  border-color: var(--ember-dark);
  background: rgba(42, 24, 16, 0.04);
}

.btn__arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.btn:hover .btn__arrow { transform: translateX(3px); }

/* Inline link */
.link {
  color: var(--ember-dark);
  border-bottom: 1px solid var(--heat-amber);
  padding-bottom: 1px;
  transition: all 0.2s ease;
  font-weight: 500;
}

.link:hover {
  color: var(--thermal-red);
  border-color: var(--thermal-red);
}

.link--arrow::after {
  content: ' →';
  transition: transform 0.2s ease;
  display: inline-block;
}
.link--arrow:hover::after { transform: translateX(3px); }

/* =========================================================
   Pillar cards (three-up)
   ========================================================= */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--ember-faint);
  border: 1px solid var(--ember-faint);
  margin-top: var(--space-lg);
}

.pillar {
  background: var(--warm-white);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: background 0.25s ease;
  position: relative;
  text-decoration: none;
  color: inherit;
}

.pillar:hover {
  background: rgba(232, 148, 26, 0.04);
}

.pillar__step {
  font-size: var(--type-micro);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--heat-amber);
  font-weight: 500;
}

.pillar__title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ember-dark);
  margin-top: var(--space-xs);
}

.pillar__body {
  color: var(--ember-dark);
  font-size: 1rem;
  line-height: 1.55;
  flex: 1;
}

.pillar__more {
  font-size: var(--type-small);
  font-weight: 500;
  color: var(--ember-dark);
  margin-top: var(--space-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.pillar__more::after {
  content: '→';
  color: var(--heat-amber);
  transition: transform 0.2s ease;
}

.pillar:hover .pillar__more::after { transform: translateX(4px); }

@media (max-width: 768px) {
  .pillars { grid-template-columns: 1fr; }
}

/* =========================================================
   Two-column layouts
   ========================================================= */

.two-col {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  align-items: start;
}

.two-col__label {
  font-size: var(--type-micro);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ember-soft);
  font-weight: 500;
  padding-top: 0.4rem;
}

@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* =========================================================
   Pull quote / approach callout
   ========================================================= */

.pullquote {
  padding: var(--space-xl) var(--space-md);
  text-align: left;
  background: var(--ember-dark);
  color: var(--warm-white);
  position: relative;
  overflow: hidden;
}

.pullquote::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--heat-amber) 30%, var(--heat-amber) 70%, transparent 100%);
  opacity: 0.5;
}

.pullquote__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-lg);
  align-items: center;
}

.pullquote__quote {
  font-size: clamp(1.75rem, 3.4vw, 2.75rem);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--warm-white);
}

.pullquote__quote em {
  font-style: normal;
  color: var(--heat-amber);
}

.pullquote__body {
  color: rgba(250, 248, 245, 0.78);
  font-size: 1.0625rem;
  line-height: 1.65;
  max-width: 44ch;
}

.pullquote__body p { margin-bottom: 1em; max-width: none; }
.pullquote__body p:last-child { margin-bottom: 0; }

.pullquote__cta {
  margin-top: var(--space-md);
  display: inline-block;
  color: var(--warm-white);
  border-bottom: 1px solid var(--heat-amber);
  padding-bottom: 2px;
  font-weight: 500;
}

.pullquote__cta:hover { color: var(--heat-amber); }

@media (max-width: 768px) {
  .pullquote__inner { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* =========================================================
   Service detail sections (residents/operations/network)
   ========================================================= */

.service-list {
  display: grid;
  gap: 0;
  margin-top: var(--space-lg);
  border-top: 1px solid var(--ember-faint);
}

.service-list__item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--ember-faint);
  align-items: start;
}

.service-list__name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ember-dark);
  letter-spacing: -0.005em;
}

.service-list__count {
  font-size: var(--type-micro);
  letter-spacing: 0.2em;
  color: var(--heat-amber);
  font-weight: 500;
  margin-bottom: 0.4rem;
  display: block;
}

.service-list__body {
  color: var(--ember-dark);
  line-height: 1.65;
  max-width: 60ch;
}

@media (max-width: 768px) {
  .service-list__item {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    padding: var(--space-md) 0;
  }
}

/* =========================================================
   Heritage strip — "since 2010" / about teaser
   ========================================================= */

.heritage {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--ember-faint);
  border-bottom: 1px solid var(--ember-faint);
}

.heritage__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-lg);
  align-items: center;
}

.heritage__year {
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 300;
  color: var(--heat-amber);
  line-height: 1;
  letter-spacing: -0.03em;
  font-feature-settings: 'tnum';
}

.heritage__year::before {
  content: 'Since';
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ember-soft);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.heritage__body {
  color: var(--ember-dark);
  font-size: 1.125rem;
  line-height: 1.6;
  max-width: 52ch;
}

.heritage__body strong { color: var(--ember-dark); font-weight: 500; }

@media (max-width: 768px) {
  .heritage__inner { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* =========================================================
   CTA strip
   ========================================================= */

.cta-strip {
  padding: var(--space-xl) 0;
  text-align: center;
}

.cta-strip h2 {
  margin: 0 auto var(--space-md);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  max-width: 24ch;
  letter-spacing: -0.02em;
}

.cta-strip p {
  margin: 0 auto var(--space-lg);
  max-width: 48ch;
  color: var(--ember-dark);
}

/* =========================================================
   Footer
   ========================================================= */

.site-footer {
  background: var(--ember-dark);
  color: rgba(250, 248, 245, 0.7);
  padding: var(--space-xl) 0 var(--space-lg);
  font-size: var(--type-small);
}

.site-footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-md);
}

.site-footer h4 {
  font-size: var(--type-micro);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--heat-amber);
  margin-bottom: var(--space-sm);
}

.site-footer__brand .wordmark__name { color: var(--warm-white); }
.site-footer__brand .wordmark__tag { color: var(--heat-amber); }

.site-footer__brand p {
  margin-top: var(--space-sm);
  max-width: 36ch;
  line-height: 1.6;
}

.site-footer ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.site-footer a { color: rgba(250, 248, 245, 0.78); }
.site-footer a:hover { color: var(--heat-amber); }

.site-footer__legal {
  max-width: var(--container);
  margin: var(--space-lg) auto 0;
  padding: var(--space-md) var(--space-md) 0;
  border-top: 1px solid rgba(250, 248, 245, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--type-micro);
  letter-spacing: 0.04em;
  color: rgba(250, 248, 245, 0.5);
}

.site-footer__legal a:hover { color: var(--heat-amber); }

@media (max-width: 768px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* =========================================================
   Page header (interior pages)
   ========================================================= */

.page-head {
  padding: clamp(4rem, 8vh, 6rem) 0 var(--space-lg);
  border-bottom: 1px solid var(--ember-faint);
}

.page-head__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.page-head__crumb {
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--ember-dark);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.page-head__crumb a { color: var(--ember-soft); font-weight: 400; }
.page-head__crumb a:hover { color: var(--thermal-red); }
.page-head__crumb .sep { margin: 0 0.5em; color: var(--ember-quiet); }

.page-head__lede {
  margin-top: var(--space-md);
  max-width: 56ch;
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ember-dark);
  font-weight: 400;
}

/* =========================================================
   Cross-link footer (between service pages)
   ========================================================= */

.cross-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--ember-faint);
  margin-top: var(--space-xl);
  border: 1px solid var(--ember-faint);
}

.cross-link {
  background: var(--warm-white);
  padding: var(--space-md);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.2s ease;
}

.cross-link:hover { background: rgba(232, 148, 26, 0.05); }

.cross-link__label {
  font-size: var(--type-micro);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ember-quiet);
  font-weight: 500;
}

.cross-link__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ember-dark);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.cross-link__title::after {
  content: '→';
  color: var(--heat-amber);
  transition: transform 0.2s ease;
}

.cross-link:hover .cross-link__title::after { transform: translateX(4px); }

@media (max-width: 600px) {
  .cross-links { grid-template-columns: 1fr; }
}

/* =========================================================
   Approach principles list
   ========================================================= */

.principles {
  margin-top: var(--space-lg);
  display: grid;
  gap: var(--space-md);
}

.principle {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--ember-faint);
}

.principle:last-child { border-bottom: 1px solid var(--ember-faint); }

.principle__num {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--heat-amber);
  font-feature-settings: 'tnum';
  letter-spacing: 0.05em;
}

.principle__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--ember-dark);
}

.principle__body {
  color: var(--ember-dark);
  line-height: 1.65;
  max-width: 60ch;
}

@media (max-width: 600px) {
  .principle { grid-template-columns: 1fr; gap: 0.5rem; padding: var(--space-md) 0; }
}

/* =========================================================
   Contact details list
   ========================================================= */

.contact-block {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--ember-faint);
  align-items: baseline;
}

.contact-block:last-of-type { border-bottom: 1px solid var(--ember-faint); }

.contact-block__label {
  font-size: var(--type-micro);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ember-soft);
  font-weight: 500;
}

.contact-block__value {
  font-size: 1.0625rem;
  color: var(--ember-dark);
}

.contact-block__value a { border-bottom: 1px solid var(--heat-amber); padding-bottom: 1px; }
.contact-block__value a:hover { color: var(--thermal-red); border-color: var(--thermal-red); }

@media (max-width: 600px) {
  .contact-block { grid-template-columns: 1fr; gap: 0.4rem; }
}

/* =========================================================
   404
   ========================================================= */

.notfound {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
}

.notfound__num {
  font-size: clamp(5rem, 16vw, 9rem);
  font-weight: 300;
  color: var(--heat-amber);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
}

/* =========================================================
   Animation — gentle entrance
   ========================================================= */

@keyframes lit-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: lit-fade-up 0.7s ease-out both; }
.fade-in--1 { animation-delay: 0.05s; }
.fade-in--2 { animation-delay: 0.18s; }
.fade-in--3 { animation-delay: 0.32s; }
.fade-in--4 { animation-delay: 0.46s; }

@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;
  }
}