/* ==========================================================================
   LEXSTRUCT ADVISORY — STYLESHEET
   Design System, Kinetic Animations & Modern Responsive Layout
   ========================================================================== */

:root {
  /* Color Palette */
  --ink-900: #0D1117;
  --ink-800: #131B26;
  --ink-700: #1A2534;
  --ink-border: #2A3F56;
  --ink-muted: #7E93A9;
  --ink-soft: #A8BCD0;
  --ink-highlight: #C7D3DF;

  --flame: #E05A36;
  --flame-hover: #C84926;
  --flame-soft: #F48B68;
  --flame-faint: rgba(224, 90, 54, 0.08);

  --foreground: #111827;
  --mist: #475569;
  --dim: #64748B;
  --line: #E2E8F0;
  --line-light: #EEF2F6;
  --surface: #F8FAFC;
  --card-bg: #FFFFFF;
  --card-hover: #F8FAFC;

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout & Spacing */
  --max-width: 80rem; /* 1280px */
  --container-px: clamp(1rem, 4vw, 4rem);
  --header-height: 5rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 700ms;

  /* Elevation */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08), 0 2px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(13, 17, 23, 0.12), 0 4px 8px -2px rgba(13, 17, 23, 0.06);
  --shadow-flame: 0 8px 24px -4px rgba(224, 90, 54, 0.25);
}

/* --------------------------------------------------------------------------
   RESET & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  color: var(--foreground);
  background-color: #FFFFFF;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) ease, opacity var(--duration-fast) ease;
}

button {
  font-family: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY HELPERS
   -------------------------------------------------------------------------- */
.font-display {
  font-family: var(--font-display);
}

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

.text-flame {
  color: var(--flame);
}

.text-flame-soft {
  color: var(--flame-soft);
}

.text-dim {
  color: var(--dim);
}

.text-mist {
  color: var(--mist);
}

.text-white {
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   LAYOUT CONTAINERS
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
  width: 100%;
}

.section-py {
  padding-top: clamp(4rem, 8vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 8rem);
}

/* Section Subheaders */
.section-tag {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-tag-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--flame);
  letter-spacing: 0.15em;
}

.section-tag-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--dim);
}

.section-tag-divider {
  height: 1px;
  flex: 1;
  background-color: var(--line);
}

.section-tag.on-dark .section-tag-number {
  color: var(--flame-soft);
}

.section-tag.on-dark .section-tag-label {
  color: var(--ink-muted);
}

.section-tag.on-dark .section-tag-divider {
  background-color: var(--ink-border);
}

/* Headings */
.heading-lg {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) ease;
  cursor: pointer;
}

.btn-flame {
  background-color: var(--flame);
  color: #FFFFFF;
  border: 1px solid transparent;
}

.btn-flame:hover {
  background-color: var(--flame-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-flame);
}

.btn-outline-white {
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  background: transparent;
}

.btn-outline-white:hover {
  border-color: var(--flame-soft);
  color: #FFFFFF;
  transform: translateY(-1px);
  background-color: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.8125rem;
}

/* --------------------------------------------------------------------------
   HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: background-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--foreground);
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--dim);
  margin-top: 0.25rem;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--mist);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--flame);
  transition: width var(--duration-fast) ease;
}

.nav-link:hover {
  color: var(--foreground);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-menu-btn {
  display: inline-flex;
  padding: 0.5rem;
  color: var(--foreground);
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   HERO SECTION & KINETIC TYPOGRAPHY
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: flex-end;
  background-color: var(--ink-900);
  overflow: hidden;
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-bg-img {
  width: 100%;
  height: 115%;
  object-fit: cover;
  object-position: center 30%;
  filter: grayscale(85%) contrast(1.15) brightness(0.65);
  transform: translateY(5%);
  transition: transform 1.2s var(--ease-out-quint);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.75) 0%, rgba(13, 17, 23, 0.88) 60%, rgba(13, 17, 23, 0.98) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--flame-soft);
  margin-bottom: 1.75rem;
}

/* Kinetic Title Lines */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: #FFFFFF;
  max-width: 58rem;
}

.kinetic-line-mask {
  display: block;
  overflow: hidden;
  padding-bottom: 0.12em;
  margin-bottom: -0.12em;
}

.kinetic-line {
  display: block;
  transform: translateY(110%);
  animation: kineticReveal 0.9s var(--ease-out-quint) forwards;
}

.line-1 { animation-delay: 0.15s; }
.line-2 { animation-delay: 0.3s; }
.line-3 { animation-delay: 0.45s; }

@keyframes kineticReveal {
  0% {
    transform: translateY(115%);
    opacity: 0;
  }
  100% {
    transform: translateY(0%);
    opacity: 1;
  }
}

.hero-description {
  font-size: clamp(1.0625rem, 1.3vw, 1.2rem);
  color: var(--ink-highlight);
  line-height: 1.65;
  margin-top: 2rem;
  max-width: 36rem;
  opacity: 0;
  animation: fadeIn 0.8s ease forwards 0.6s;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
  opacity: 0;
  animation: fadeIn 0.8s ease forwards 0.75s;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   TRUST STATS STRIP
   -------------------------------------------------------------------------- */
.trust-strip {
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--line);
  padding: 3.5rem 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
  }
}

.stat-item {
  border-left: 2px solid var(--line-light);
  padding-left: 1.25rem;
  transition: border-color var(--duration-fast) ease;
}

.stat-item:hover {
  border-left-color: var(--flame);
}

.stat-val {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 500;
  color: var(--foreground);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--dim);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   INFINITE CONTINUOUS MARQUEE
   -------------------------------------------------------------------------- */
.marquee-wrapper {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background-color: #FAFAFA;
  padding: 1.125rem 0;
  user-select: none;
}

.marquee-track {
  display: flex;
  width: max-content;
  will-change: transform;
  animation: marqueeContinuous 38s linear infinite;
}

.marquee-wrapper:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-content {
  display: flex;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--dim);
  padding-right: 4rem;
}

@keyframes marqueeContinuous {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-50%, 0, 0); }
}

/* --------------------------------------------------------------------------
   SECTION 01: WHO WE HELP (CLIENT GROUPS)
   -------------------------------------------------------------------------- */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3.5rem;
}

@media (min-width: 640px) {
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.audience-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--line);
  background-color: var(--surface);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border-radius: var(--radius-sm);
  transition: transform var(--duration-normal) var(--ease-out-quint),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-normal) ease;
}

.audience-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 90, 54, 0.45);
  box-shadow: var(--shadow-md);
  background-color: #FFFFFF;
}

.card-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--flame);
}

.card-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw, 1.875rem);
  font-weight: 500;
  margin-top: 1rem;
  color: var(--foreground);
  transition: color var(--duration-fast) ease;
}

.audience-card:hover .card-title {
  color: var(--flame);
}

.card-description {
  color: var(--mist);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-top: 1rem;
  flex: 1;
}

.card-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--foreground);
  margin-top: 1.75rem;
}

.card-action svg {
  transition: transform var(--duration-fast) ease;
}

.audience-card:hover .card-action svg {
  transform: translate(3px, -3px);
}

/* --------------------------------------------------------------------------
   SECTION 02: WHAT WE DO (SERVICES LIST)
   -------------------------------------------------------------------------- */
.bg-surface-section {
  background-color: var(--surface);
  border-top: 1px solid var(--line);
}

.service-list {
  border-top: 1px solid var(--line);
  margin-top: 3.5rem;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 2.25rem 1rem;
  border-bottom: 1px solid var(--line);
  transition: background-color var(--duration-fast) ease;
  border-radius: var(--radius-sm);
}

@media (min-width: 768px) {
  .service-item {
    grid-template-columns: 4rem 1.8fr 3fr 3rem;
    align-items: baseline;
    gap: 2rem;
    padding: 2.5rem 1.5rem;
  }
}

.service-item:hover {
  background-color: #FFFFFF;
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--flame);
}

.service-name {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: 500;
  color: var(--foreground);
  transition: color var(--duration-fast) ease;
}

.service-item:hover .service-name {
  color: var(--flame);
}

.service-text {
  font-size: 0.875rem;
  color: var(--mist);
  line-height: 1.65;
}

.service-arrow {
  display: none;
  justify-content: flex-end;
}

@media (min-width: 768px) {
  .service-arrow {
    display: flex;
  }
}

.service-arrow svg {
  color: var(--dim);
  transition: all var(--duration-fast) ease;
}

.service-item:hover .service-arrow svg {
  color: var(--flame);
  transform: translate(3px, -3px);
}

/* --------------------------------------------------------------------------
   SECTION 03: PROJECT EXPERIENCE (CARDS)
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  display: block;
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  overflow: hidden;
  border-radius: var(--radius-sm);
  transition: transform var(--duration-normal) var(--ease-out-quint),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-normal) ease;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: rgba(224, 90, 54, 0.4);
  box-shadow: var(--shadow-lg);
}

.project-media {
  width: 100%;
  height: 14rem;
  overflow: hidden;
  background-color: var(--ink-900);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s var(--ease-out-quint);
}

.project-card:hover .project-img {
  transform: scale(1.04);
}

.project-info {
  padding: 1.75rem;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--flame);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin-top: 0.5rem;
  color: var(--foreground);
  transition: color var(--duration-fast) ease;
}

.project-card:hover .project-title {
  color: var(--flame);
}

.project-location {
  font-size: 0.75rem;
  color: var(--mist);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   SECTION 04: WHY LEXSTRUCT (MANIFESTO)
   -------------------------------------------------------------------------- */
.manifesto-section {
  background-color: var(--ink-900);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--ink-border);
}

.manifesto-watermark {
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  pointer-events: none;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr;
  row-gap: 3.5rem;
  column-gap: 4rem;
  margin-top: 4.5rem;
}

@media (min-width: 768px) {
  .manifesto-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.manifesto-item {
  border-left: 2px solid var(--ink-border);
  padding-left: 1.75rem;
  transition: border-color var(--duration-fast) ease;
}

.manifesto-item:hover {
  border-left-color: var(--flame-soft);
}

.manifesto-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--flame-soft);
}

.manifesto-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.2vw, 2rem);
  font-weight: 500;
  color: #FFFFFF;
  margin-top: 0.75rem;
}

.manifesto-body {
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 28rem;
}

/* --------------------------------------------------------------------------
   SECTION 05: HOW WE WORK (4-STEP PROCESS)
   -------------------------------------------------------------------------- */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--line);
  border: 1px solid var(--line);
  margin-top: 3.5rem;
}

@media (min-width: 640px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step {
  background-color: #FFFFFF;
  padding: clamp(2rem, 3.5vw, 2.75rem);
  transition: background-color var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.process-step:hover {
  background-color: var(--card-hover);
}

.step-num {
  font-family: var(--font-display);
  font-size: 3.25rem;
  font-weight: 400;
  color: var(--line);
  line-height: 1;
  transition: color var(--duration-normal) ease;
}

.process-step:hover .step-num {
  color: var(--flame);
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  margin-top: 1.5rem;
  color: var(--foreground);
}

.step-description {
  font-size: 0.875rem;
  color: var(--mist);
  margin-top: 0.75rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   SECTION 06: TESTIMONIALS
   -------------------------------------------------------------------------- */
.testimonials-section {
  border-top: 1px solid var(--line);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  padding: clamp(1.75rem, 2.5vw, 2.25rem);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-normal) ease;
}

.testimonial-card:hover {
  border-color: rgba(224, 90, 54, 0.35);
  box-shadow: var(--shadow-md);
}

.testimonial-quote {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.45;
  color: var(--foreground);
  font-style: italic;
}

.testimonial-author {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-light);
}

.author-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--foreground);
}

.author-role {
  font-size: 0.75rem;
  color: var(--mist);
  margin-top: 0.25rem;
}

.testimonial-disclaimer {
  font-size: 0.75rem;
  color: var(--dim);
  margin-top: 2rem;
  max-width: 42rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   FOOTER & PRE-FOOTER CTA
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--ink-900);
  color: #FFFFFF;
  border-top: 1px solid var(--ink-border);
}

.footer-cta {
  max-width: 48rem;
}

.footer-cta-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--flame-soft);
  margin-bottom: 1.5rem;
}

.footer-cta-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.footer-cta-title em {
  color: var(--flame-soft);
  font-style: normal;
}

.footer-cta-text {
  font-size: 1.125rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-top: 1.5rem;
  max-width: 36rem;
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  border-top: 1px solid var(--ink-border);
  padding-top: 3.5rem;
  margin-top: 5rem;
}

@media (min-width: 640px) {
  .footer-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-nav-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  }
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--ink-soft);
  transition: color var(--duration-fast) ease;
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-brand-logo {
  height: 3.5rem;
  width: auto;
}

.footer-brand-text {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.65;
  margin-top: 1rem;
}

.footer-contact-info {
  list-style: none;
  font-size: 0.875rem;
  color: var(--ink-soft);
}

.footer-contact-info li {
  margin-bottom: 0.75rem;
}

.footer-contact-info a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 2rem;
  margin-top: 4rem;
  border-top: 1px solid var(--ink-border);
  font-size: 0.75rem;
  color: var(--ink-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   MODAL & MOBILE DRAWER
   -------------------------------------------------------------------------- */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}

.mobile-drawer.active {
  display: block;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(13, 17, 23, 0.7);
  backdrop-filter: blur(4px);
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 22rem;
  background-color: #FFFFFF;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
  transform: translateX(100%);
  animation: slideDrawer 0.35s var(--ease-out-quint) forwards;
}

@keyframes slideDrawer {
  to { transform: translateX(0); }
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.drawer-close {
  padding: 0.5rem;
  color: var(--foreground);
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 2rem;
}

.drawer-link {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--foreground);
  padding: 0.25rem 0;
}

.drawer-link:hover {
  color: var(--flame);
}

/* Contact Enquiry Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2100;
  background-color: rgba(13, 17, 23, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: #FFFFFF;
  width: 100%;
  max-width: 34rem;
  border-radius: var(--radius-sm);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--duration-normal) var(--ease-out-quint);
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--dim);
}

.modal-close:hover {
  color: var(--foreground);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin-bottom: 0.5rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--foreground);
  background-color: #FFFFFF;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--flame);
  box-shadow: 0 0 0 3px var(--flame-faint);
}

/* --------------------------------------------------------------------------
   SCROLL REVEAL ANIMATIONS
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out-quint), transform 0.7s var(--ease-out-quint);
  will-change: opacity, transform;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   ACCESSIBILITY
   -------------------------------------------------------------------------- */
@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;
  }
  .marquee-track {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   SERVICE DETAIL PAGES & ACCORDIONS
   -------------------------------------------------------------------------- */
.nav-link.active {
  color: var(--flame);
}

.nav-link.active::after {
  width: 100%;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--ink-muted);
  transition: color var(--duration-fast) ease;
  margin-bottom: 2.5rem;
}

.back-link:hover {
  color: #FFFFFF;
}

.service-hero-section {
  position: relative;
  padding-top: calc(var(--header-height) + 4.5rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  background-color: var(--ink-900);
  overflow: hidden;
  color: #FFFFFF;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-card {
  border: 1px solid var(--line);
  background-color: var(--card-bg);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  border-radius: var(--radius-sm);
  transition: border-color var(--duration-fast) ease, transform var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.feature-card:hover {
  border-color: rgba(224, 90, 54, 0.4);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  color: var(--flame);
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--foreground);
}

.feature-desc {
  color: var(--mist);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-top: 0.5rem;
}

/* Selected Work Figures */
.work-figure {
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform var(--duration-normal) var(--ease-out-quint), border-color var(--duration-fast) ease, box-shadow var(--duration-normal) ease;
}

.work-figure:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 90, 54, 0.4);
  box-shadow: var(--shadow-md);
}

.work-figure-media {
  width: 100%;
  height: 16rem;
  overflow: hidden;
  background-color: var(--ink-900);
}

.work-figure-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s var(--ease-out-quint);
}

.work-figure:hover .work-figure-img {
  transform: scale(1.03);
}

.work-figure-caption {
  padding: 1.25rem 1.5rem;
  font-size: 0.8125rem;
  color: var(--mist);
  line-height: 1.55;
  border-top: 1px solid var(--line);
  background-color: #FFFFFF;
  flex: 1;
}

/* Accessible & Smooth Accordion */
.faq-container {
  max-width: 52rem;
  margin-left: auto;
  margin-right: auto;
}

.faq-list {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  padding: 1.5rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.8vw, 1.35rem);
  font-weight: 500;
  color: var(--foreground);
  cursor: pointer;
  transition: color var(--duration-fast) ease;
}

.faq-trigger:hover {
  color: var(--flame);
}

.faq-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  color: var(--dim);
  transition: transform 0.3s var(--ease-out-quint), color var(--duration-fast) ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--flame);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s var(--ease-out-quint), opacity 0.3s ease, padding-bottom 0.3s ease;
}

.faq-item.is-open .faq-content {
  max-height: 30rem;
  opacity: 1;
  padding-bottom: 1.5rem;
}

.faq-answer {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--mist);
}

.service-footer-cta {
  max-width: 48rem;
}


/* --------------------------------------------------------------------------
   PROJECT EXAMPLES & FILTER BAR
   -------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.625rem 1.25rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) ease;
}

.filter-btn:hover {
  color: var(--foreground);
  border-color: var(--dim);
}

.filter-btn.active {
  border-color: var(--flame);
  color: var(--flame);
  background-color: rgba(224, 90, 54, 0.1);
}

.project-item[data-hidden="true"] {
  display: none !important;
}

.project-desc {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--mist);
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   CONTACT PAGE & FULL FORM
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 5fr 7fr;
    gap: 4rem;
    align-items: start;
  }
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-top: 3rem;
}

.contact-info-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.contact-info-icon {
  color: var(--flame);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.contact-form-card {
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  padding: clamp(1.75rem, 4vw, 3rem);
  border-radius: var(--radius-sm);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .form-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.form-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   CASE STUDIES CARDS & BREAKDOWN
   -------------------------------------------------------------------------- */
.case-card {
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out-quint),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-normal) ease;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 90, 54, 0.4);
  box-shadow: var(--shadow-lg);
}

.case-media {
  width: 100%;
  height: 13rem;
  overflow: hidden;
  background-color: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s var(--ease-out-quint);
}

.case-card:hover .case-img {
  transform: scale(1.03);
}

.case-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.case-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--flame);
}

.case-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--foreground);
  margin-top: 0.5rem;
  line-height: 1.25;
}

.case-breakdown {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.8125rem;
  line-height: 1.6;
}

.case-step {
  border-left: 2px solid var(--line);
  padding-left: 0.875rem;
}

.case-step-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.2rem;
  display: block;
}

.case-step-problem .case-step-label {
  color: var(--foreground);
}

.case-step-risk {
  border-left-color: rgba(224, 90, 54, 0.5);
}
.case-step-risk .case-step-label {
  color: var(--flame);
}

.case-step-intervention .case-step-label {
  color: #0284C7;
}
.case-step-intervention {
  border-left-color: rgba(2, 132, 199, 0.4);
}

.case-step-outcome {
  border-left-color: rgba(22, 163, 74, 0.6);
  background-color: #F0FDF4;
  padding: 0.625rem 0.875rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.case-step-outcome .case-step-label {
  color: #15803D;
}
.case-step-outcome p {
  color: #166534;
  font-weight: 500;
}

.case-item[data-hidden="true"] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   INSIGHTS & FIELD NOTES CARDS
   -------------------------------------------------------------------------- */
.insight-card {
  border: 1px solid var(--line);
  background-color: #FFFFFF;
  border-radius: var(--radius-sm);
  padding: clamp(1.75rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: transform var(--duration-normal) var(--ease-out-quint),
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-normal) ease;
}

.insight-card:hover {
  transform: translateY(-4px);
  border-color: rgba(224, 90, 54, 0.4);
  box-shadow: var(--shadow-lg);
}

.insight-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.insight-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--flame);
}

.insight-status-badge {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.25rem 0.5rem;
  background-color: var(--surface);
  border: 1px solid var(--line);
  color: var(--mist);
  border-radius: var(--radius-sm);
}

.insight-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--foreground);
  margin-top: 0.5rem;
  transition: color var(--duration-fast) ease;
}

.insight-card:hover .insight-title {
  color: var(--flame);
}

.insight-excerpt {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--mist);
  margin-top: 1rem;
}

.insight-footer {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--dim);
}