/* ==========================================================================
   FATHOM SOLUTIONS — Global Stylesheet
   Clarity. Process. Results.
   ========================================================================== */

/* ----- Font Faces ----- */
@font-face {
  font-family: 'Nexa';
  src: url('../assets/fonts/Nexa-Light.woff2') format('woff2'),
       url('../assets/fonts/Nexa-Light.woff') format('woff');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Nexa';
  src: url('../assets/fonts/Nexa-Regular.woff2') format('woff2'),
       url('../assets/fonts/Nexa-Regular.woff') format('woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ----- CSS Custom Properties ----- */
:root {
  /* Brand Palette — Fathom Solutions */
  --color-primary-dark: #1A1A1A;
  --color-charcoal: #3C3C3C;
  --color-mid-grey: #6B6B6B;
  --color-light-grey: #F5F5F5;
  --color-white: #FFFFFF;
  --color-accent-subtle: #C8C8C8;
  --color-accent: #0047AB;          /* Fathom cobalt blue */
  --color-accent-hover: #003A8C;
  --color-accent-light: rgba(0, 71, 171, 0.08);

  /* Typography */
  --font-primary: 'Nexa', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1.0625rem;/* 17px */
  --text-lg: 1.25rem;    /* 20px */
  --text-xl: 1.5rem;     /* 24px */
  --text-2xl: 2rem;      /* 32px */
  --text-3xl: 2.5rem;    /* 40px */
  --text-4xl: 3.25rem;   /* 52px */
  --text-5xl: 4rem;      /* 64px */

  --leading-tight: 1.15;
  --leading-normal: 1.65;
  --leading-relaxed: 1.8;

  --tracking-tight: -0.01em;
  --tracking-normal: 0.02em;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.14em;
  --tracking-widest: 0.2em;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-section: 7.5rem;  /* 120px */

  /* Layout */
  --content-width: 1200px;
  --content-narrow: 800px;
  --nav-height: 80px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-base: 0.4s var(--ease-out);
  --transition-slow: 0.7s var(--ease-out);

  /* Borders & Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-subtle: 1px solid rgba(200, 200, 200, 0.3);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-weight: 300;
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  letter-spacing: var(--tracking-normal);
  color: var(--color-charcoal);
  background: var(--color-white);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-wide);
}

h1 {
  font-size: var(--text-5xl);
  letter-spacing: var(--tracking-tight);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-mid-grey);
  margin-bottom: var(--space-md);
}

.section-label--light {
  color: rgba(255, 255, 255, 0.5);
}

/* ----- Layout ----- */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

section {
  padding: var(--space-section) 0;
}

.section--dark {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.section--light {
  background: var(--color-light-grey);
}

.section--white {
  background: var(--color-white);
}

/* ----- Navigation ----- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease, -webkit-backdrop-filter 0.5s ease;
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav--scrolled .nav__logo img {
  filter: none;
}

.nav--scrolled .nav__link {
  color: var(--color-charcoal);
}

.nav--scrolled .nav__portal {
  border-color: var(--color-charcoal);
  color: var(--color-charcoal);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  flex-shrink: 1;
  min-width: 0;
  margin-right: var(--space-xl);
}

.nav__logo img {
  height: 34px;
  width: auto;
  max-width: 100%;
  filter: brightness(0) invert(1);
  transition: filter 0.5s ease;
}

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

.nav__link {
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.5s ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
}

.nav--scrolled .nav__link:hover,
.nav--scrolled .nav__link--active {
  color: var(--color-accent);
}

/* ----- Services Dropdown ----- */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  cursor: pointer;
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 110;
}

.nav__dropdown-menu::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-top: 0;
  border-bottom: 8px solid var(--color-white);
}

/* Invisible bridge to prevent hover gap */
.nav__dropdown-menu::after {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-charcoal);
  letter-spacing: var(--tracking-wide);
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.nav__dropdown-number {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 300;
  min-width: 20px;
}

.nav__dropdown-link:hover {
  background: var(--color-off-white, #f5f5f5);
  color: var(--color-accent);
}

.nav__dropdown-divider {
  height: 1px;
  background: var(--color-border, #e5e5e5);
  margin: var(--space-xs) var(--space-lg);
}

.nav__dropdown-all {
  display: block;
  padding: 10px var(--space-lg);
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  font-weight: 400;
  transition: background 0.15s ease;
}

.nav__dropdown-all:hover {
  background: var(--color-off-white, #f5f5f5);
}

.nav__portal {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav__portal:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border-color: var(--color-white);
}

.nav--scrolled .nav__portal:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  border-color: var(--color-primary-dark);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 0;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--color-white);
  transition: background 0.5s ease, transform var(--transition-base);
  transform-origin: center;
}

.nav--scrolled .nav__toggle span {
  background: var(--color-charcoal);
}

.nav__toggle--active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle--active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-primary-dark);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__link {
  font-size: var(--text-2xl);
  font-weight: 300;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-white);
  transition: opacity var(--transition-fast);
}

.mobile-menu__link:hover {
  opacity: 0.6;
}

.mobile-menu__services {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm) 0 var(--space-md);
}

.mobile-menu__sublink {
  font-size: var(--text-base);
  font-weight: 300;
  letter-spacing: var(--tracking-wide);
  color: rgba(255, 255, 255, 0.6);
  padding-left: var(--space-md);
  transition: color var(--transition-fast);
}

.mobile-menu__sublink:hover {
  color: var(--color-accent);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

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

.btn--outline-dark {
  background: transparent;
  color: var(--color-charcoal);
  border: 1px solid var(--color-accent-subtle);
}

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

.btn__arrow {
  transition: transform var(--transition-fast);
}

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

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary-dark);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__headline {
  font-size: clamp(2.5rem, 5vw, var(--text-5xl));
  font-weight: 300;
  color: var(--color-white);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  max-width: 800px;
  margin-bottom: var(--space-lg);
}

.hero__subline {
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--leading-relaxed);
  max-width: 560px;
  margin-bottom: var(--space-2xl);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.3);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.3), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ----- Cards ----- */
.card {
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-lg);
  color: var(--color-accent);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-mid-grey);
  line-height: var(--leading-relaxed);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  transition: gap var(--transition-fast);
}

.card__link:hover {
  gap: 0.75rem;
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ----- Stats ----- */
.stat {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
}

.stat__number {
  font-size: var(--text-4xl);
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.stat__label {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-mid-grey);
}

/* ----- Testimonial ----- */
.testimonial {
  max-width: var(--content-narrow);
  margin: 0 auto;
  text-align: center;
}

.testimonial__quote {
  font-size: var(--text-xl);
  font-weight: 300;
  line-height: var(--leading-relaxed);
  font-style: italic;
  color: var(--color-charcoal);
  margin-bottom: var(--space-lg);
}

.testimonial__quote::before {
  content: '\201C';
  display: block;
  font-size: var(--text-4xl);
  color: var(--color-accent);
  font-style: normal;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.testimonial__author {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-mid-grey);
}

/* ----- CTA Section ----- */
.cta-section {
  text-align: center;
  padding: var(--space-section) 0;
}

.cta-section__heading {
  font-size: var(--text-3xl);
  font-weight: 300;
  margin-bottom: var(--space-md);
}

.cta-section__subtext {
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-2xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ----- Service Directory (Homepage) ----- */
.service-directory {
  display: flex;
  flex-direction: column;
}

.service-row {
  display: grid;
  grid-template-columns: 40px 1fr 1.2fr 30px;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border, #e5e5e5);
  color: var(--color-charcoal);
  transition: all 0.2s ease;
}

.service-row:first-child {
  border-top: 1px solid var(--color-border, #e5e5e5);
}

.service-row:hover {
  padding-left: var(--space-sm);
  color: var(--color-accent);
}

.service-row__number {
  font-size: var(--text-sm);
  font-weight: 300;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
}

.service-row__name {
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
}

.service-row__desc {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 300;
}

.service-row__arrow {
  font-size: var(--text-lg);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.service-row:hover .service-row__arrow {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 768px) {
  .service-row {
    grid-template-columns: 30px 1fr 24px;
    gap: var(--space-sm);
  }

  .service-row__desc {
    display: none;
  }

  .service-row__arrow {
    opacity: 1;
  }
}

/* ----- Service Sections ----- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.service-block__number {
  font-size: var(--text-5xl);
  font-weight: 300;
  color: var(--color-accent);
  opacity: 0.3;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.service-block__title {
  font-size: var(--text-2xl);
  font-weight: 400;
  margin-bottom: var(--space-lg);
}

.service-block__text {
  color: var(--color-mid-grey);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
}

.service-block__list {
  margin-bottom: var(--space-xl);
}

.service-block__list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-mid-grey);
  font-size: var(--text-sm);
}

.service-block__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

.service-block__visual {
  aspect-ratio: 4/3;
  background: var(--color-light-grey);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.service-block__visual svg {
  width: 60%;
  opacity: 0.1;
}

/* ----- About ----- */
.ethos-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ethos-card__number {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.ethos-card__title {
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-sm);
  min-height: 2em;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.ethos-card__text {
  color: var(--color-mid-grey);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ----- Insights / Blog ----- */
.insight-card {
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.insight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.insight-card__image {
  aspect-ratio: 16/9;
  background: var(--color-light-grey);
  position: relative;
}

.insight-card__category {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  background: var(--color-white);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-charcoal);
}

.insight-card__body {
  padding: var(--space-lg);
}

.insight-card__meta {
  font-size: var(--text-xs);
  color: var(--color-mid-grey);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.insight-card__title {
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: var(--tracking-normal);
  margin-bottom: var(--space-sm);
  line-height: 1.35;
}

.insight-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-mid-grey);
  line-height: var(--leading-relaxed);
}

/* Featured insight */
.insight-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.insight-featured__image {
  aspect-ratio: 16/10;
  background: var(--color-light-grey);
  border-radius: var(--radius-md);
}

.insight-featured__category {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.insight-featured__title {
  font-size: var(--text-2xl);
  font-weight: 400;
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.insight-featured__excerpt {
  color: var(--color-mid-grey);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
}

/* Category filters */
.insight-filters {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.insight-filter {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-accent-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-mid-grey);
  transition: all var(--transition-fast);
  cursor: pointer;
  background: none;
}

.insight-filter:hover,
.insight-filter--active {
  background: var(--color-primary-dark);
  color: var(--color-white);
  border-color: var(--color-primary-dark);
}

/* ----- Contact ----- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-mid-grey);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 0;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-charcoal);
  border: none;
  border-bottom: 1px solid var(--color-accent-subtle);
  background: transparent;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B6B6B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
}

/* Contact info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.contact-info__block h4 {
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: var(--color-charcoal);
}

.contact-info__block p {
  color: var(--color-mid-grey);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.contact-info__response {
  padding: var(--space-lg);
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}

.contact-info__response p {
  color: var(--color-charcoal);
  font-size: var(--text-sm);
}


/* ----- Cases Grid ----- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  padding: var(--space-section) 0;
}

.case-card {
  background: var(--color-white);
  border: 1px solid rgba(200, 200, 200, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.case-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.case-card__title {
  font-size: var(--text-xl);
  font-weight: 300;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-sm);
}

.case-card__title a {
  color: var(--color-charcoal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.case-card__title a:hover {
  color: var(--color-accent);
}

.case-card__meta {
  font-size: var(--text-sm);
  color: var(--color-mid-grey);
  margin-bottom: var(--space-sm);
}

.case-card__excerpt {
  font-size: var(--text-base);
  color: var(--color-mid-grey);
  line-height: var(--leading-relaxed);
}

@media (max-width: 768px) {
  .cases-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: var(--space-2xl) 0;
  }
}

/* ----- Footer ----- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.5);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
  text-align: center;
}

.footer__brand p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 300px;
  margin: var(--space-md) auto 0;
}

.footer__logo img {
  height: 28px;
  width: auto;
  max-width: 100%;
  filter: brightness(0) invert(1);
  opacity: 0.8;
}

.footer__heading {
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-lg);
}

/* ----- Chatbot Widget Placeholder ----- */
.chatbot-widget {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 56px;
  height: 56px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: 0 8px 30px rgba(0, 71, 171, 0.3);
  z-index: 90;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.chatbot-widget:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 40px rgba(0, 71, 171, 0.4);
}

/* ----- Scroll Animations ----- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal--visible {
  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; }

/* Page hero (non-home pages) */
.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.page-hero__title {
  font-size: clamp(2rem, 4vw, var(--text-4xl));
  font-weight: 300;
  margin-bottom: var(--space-md);
}

.page-hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.5);
  max-width: 600px;
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  :root {
    --space-section: 5rem;
  }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }

  .service-block {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .service-block__visual {
    order: -1;
  }

  .insight-featured {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 4rem;
    --nav-height: 64px;
  }

  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .nav__links {
    display: none;
  }

  .nav__logo img {
    height: 22px;
  }

  .nav__toggle {
    display: flex;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    text-align: center;
  }

  .footer__legal {
    justify-content: center;
  }
}

@media (max-width: 375px) {
  .container {
    padding: 0 var(--space-sm);
  }
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.section-heading {
  font-size: var(--text-2xl);
  font-weight: 300;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-xl);
}

.faq {
  max-width: 800px;
}

.faq__item {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.faq__item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq__question {
  font-size: var(--text-lg);
  font-weight: 400;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
  color: var(--color-charcoal);
}

.faq__answer {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
}

/* ==========================================================================
   Cookie Consent Banner
   ========================================================================== */

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 98;
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-lg) 0;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
}

.cookie-banner--visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.cookie-banner__text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin: 0;
  flex: 1;
}

.cookie-banner__text a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.cookie-banner__btn {
  padding: 0.6rem 1.2rem;
  font-size: var(--text-xs);
  font-family: var(--font-primary);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.cookie-banner__btn--accept {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.cookie-banner__btn--accept:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.cookie-banner__btn--reject {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
}

.cookie-banner__btn--reject:hover {
  color: var(--color-white);
  border-color: var(--color-white);
}

@media (max-width: 768px) {
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }

  .cookie-banner__actions {
    width: 100%;
    justify-content: center;
  }
}

/* ==========================================================================
   Chatbot Tooltip
   ========================================================================== */

.chatbot-tooltip {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: 89;
  background: var(--color-white);
  color: var(--color-charcoal);
  padding: var(--space-lg);
  border-radius: 4px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 280px;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.chatbot-tooltip--visible {
  opacity: 1;
  transform: translateY(0);
}

.chatbot-tooltip p {
  margin: 0 0 var(--space-xs);
}

.chatbot-tooltip p:last-child {
  margin-bottom: 0;
}

.chatbot-tooltip a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chatbot-tooltip::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: 20px;
  width: 12px;
  height: 12px;
  background: var(--color-white);
  transform: rotate(45deg);
  box-shadow: 3px 3px 6px rgba(0, 0, 0, 0.06);
}

/* ==========================================================================
   Z-Index Scale Reference
   100 — nav, 99 — mobile-menu, 98 — cookie-banner,
   90 — chatbot-widget, 89 — chatbot-tooltip
   ========================================================================== */

/* ==========================================================================
   Keyboard Focus Styles (WCAG 2.4.7)
   ========================================================================== */

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav__link:focus-visible {
  outline-offset: 4px;
}

.btn:focus-visible {
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(0, 71, 171, 0.2);
}

/* ==========================================================================
   Tablet Breakpoint (640px)
   ========================================================================== */

@media (max-width: 640px) {
  .hero__title {
    font-size: var(--text-2xl);
  }

  .grid--2 {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* ==========================================================================
   Form Input Padding Fix
   ========================================================================== */

.form-group input,
.form-group textarea,
.form-group select {
  padding-left: 0.25rem;
  padding-right: 0.25rem;
}

/* ==========================================================================
   Prefers Reduced Motion
   ========================================================================== */

@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;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .hero__scroll-line {
    animation: none !important;
    opacity: 0.3;
  }
}

/* ==========================================================================
   Print Stylesheet
   ========================================================================== */

@media print {
  nav,
  .mobile-menu,
  .chatbot-widget,
  .chatbot-tooltip,
  .cookie-banner,
  .hero__scroll-indicator,
  .hero canvas,
  .btn--ghost {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    line-height: 1.5;
  }

  a {
    color: black !important;
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #555;
  }

  a[href^="#"]::after,
  a[href^="javascript"]::after {
    content: "";
  }

  .hero {
    min-height: auto !important;
    padding: 2rem 0 !important;
    background: white !important;
    color: black !important;
  }

  .hero__title,
  .hero__subtitle {
    color: black !important;
  }

  .section {
    page-break-inside: avoid;
  }

  .footer {
    background: white !important;
    color: black !important;
    border-top: 1px solid #ccc;
  }
}

/* ==========================================================================
   Resources CTA Banner
   ========================================================================== */

.resources-cta {
  background: var(--color-accent-light);
  border: 1px solid rgba(0, 71, 171, 0.12);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-2xl);
  text-align: center;
  margin-top: var(--space-xl);
}

.resources-cta__title {
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-charcoal);
  margin-bottom: var(--space-xs);
}

.resources-cta__text {
  font-size: var(--text-sm);
  color: var(--color-mid-grey);
  margin-bottom: var(--space-lg);
}

.resources-cta .btn {
  display: inline-block;
}
   .visually-hidden {
     position: absolute;
     width: 1px;
     height: 1px;
     padding: 0;
     margin: -1px;
     overflow: hidden;
     clip: rect(0, 0, 0, 0);
     white-space: nowrap;
     border: 0;
   }

/* ----- Utility: Screen Reader Only ----- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}