/* ============================================
   RevAssured — Premium CSS Foundation
   Design System: McKinsey × Notion × Stripe × Linear
   ============================================ */

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=Instrument+Serif:ital@0;1&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Colors */
  --color-onyx: #0B0B0C;
  --color-ivory: #F6F5F2;
  --color-white: #FFFFFF;
  --color-slate: #8A8F98;
  --color-steel: #5B6270;
  --color-border: #E3E2DE;
  --color-border-dark: #2A2A2D;
  --color-accent: #4F6BFF;
  --color-accent-hover: #3A56F0;
  --color-surface: #F0EFEb;
  --color-dark-surface: #141416;
  --color-dark-card: #1A1A1D;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;

  /* Font sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  --text-8xl: 6rem;

  /* Spacing */
  --section-padding: 140px;
  --section-padding-sm: 80px;
  --container-max: 1280px;
  --container-padding: 2.5rem;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --transition-very-slow: 0.7s ease;

  /* Borders */
  --radius-sm: 4px;
  --radius-base: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-white);
  color: var(--color-onyx);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.eyebrow--accent {
  color: var(--color-accent);
}

.eyebrow--light {
  color: rgba(255,255,255,0.45);
}

/* === LAYOUT === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.section--sm {
  padding: var(--section-padding-sm) 0;
}

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

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

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

/* === GRID === */
.grid {
  display: grid;
}

.grid-2 {
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

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

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

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-onyx);
  color: var(--color-white);
  border: 1.5px solid var(--color-onyx);
}

.btn--primary:hover {
  background-color: #1a1a1d;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(11,11,12,0.2);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 1.5px solid var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(79,107,255,0.3);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-onyx);
  border: 1.5px solid var(--color-border);
}

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

.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.3);
}

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

.btn--ghost {
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-slate);
  font-weight: 500;
  gap: 0.375rem;
}

.btn--ghost:hover {
  color: var(--color-onyx);
}

.btn--ghost svg {
  transition: transform var(--transition-fast);
}

.btn--ghost:hover svg {
  transform: translateX(3px);
}

.btn-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all var(--transition-base);
  padding: 1.5rem 0;
}

.nav.nav--scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 20px rgba(0,0,0,0.05);
}

.nav.nav--dark {
  background-color: transparent;
}

.nav.nav--dark.nav--scrolled {
  background-color: rgba(11, 11, 12, 0.95);
  border-bottom-color: var(--color-border-dark);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-onyx);
  transition: opacity var(--transition-fast);
}

.nav__logo:hover {
  opacity: 0.75;
}

.nav__logo--light {
  color: var(--color-white);
}

.nav--scrolled .nav__logo--light {
  color: var(--color-onyx);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-steel);
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}

.nav__link:hover {
  color: var(--color-onyx);
}

.nav__link--light {
  color: rgba(255,255,255,0.65);
}

.nav__link--light:hover {
  color: var(--color-white);
}

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

.nav--scrolled .nav__link--light:hover {
  color: var(--color-onyx);
}

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

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__mobile-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: var(--color-onyx);
  transition: all var(--transition-base);
}

.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  flex-direction: column;
  padding: 2rem;
  overflow-y: auto;
}

.nav__mobile-menu.is-open {
  display: flex;
}

.nav__mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.nav__mobile-close {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-steel);
  line-height: 1;
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.nav__mobile-link {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-onyx);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

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

.nav__mobile-footer {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* === HERO SECTION === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-onyx);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  padding-top: 100px;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79,107,255,0.12) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.hero__bg-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79,107,255,0.06) 0%, transparent 70%);
  bottom: 50px;
  left: -50px;
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  padding: 6rem 0 5rem;
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 560px;
}

.hero__eyebrow {
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero__eyebrow-line {
  display: inline-block;
  width: 24px;
  height: 1.5px;
  background-color: var(--color-accent);
}

.hero__headline {
  font-size: clamp(2.75rem, 5vw, 5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.035em;
  color: var(--color-white);
  margin-bottom: 1.75rem;
}

.hero__headline em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  color: rgba(255,255,255,0.65);
}

.hero__subheadline {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
  margin-bottom: 2.5rem;
  font-weight: 400;
  max-width: 480px;
}

.hero__ctas {
  margin-bottom: 3rem;
}

.hero__trust {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero__trust-line {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.4);
  line-height: 1.5;
}

.hero__trust-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.2);
  flex-shrink: 0;
}

/* Hero Visual */
.hero__visual {
  position: relative;
}

.hero__diagram {
  position: relative;
  width: 100%;
}

.revenue-engine {
  background: linear-gradient(135deg, #141416 0%, #1A1A1D 100%);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.revenue-engine::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(79,107,255,0.04) 0%, transparent 50%);
  border-radius: 20px;
}

.re-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.re-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

.re-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 11px;
  color: rgba(255,255,255,0.3);
}

.re-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #22c55e;
  animation: pulse-green 2s ease-in-out infinite;
}

@keyframes pulse-green {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.re-stages {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.re-stage {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.05);
  background: rgba(255,255,255,0.03);
  transition: all var(--transition-base);
}

.re-stage:hover {
  border-color: rgba(79,107,255,0.2);
  background: rgba(79,107,255,0.05);
}

.re-stage-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 12px;
}

.re-stage-icon--blue { background: rgba(79,107,255,0.15); color: #7B93FF; }
.re-stage-icon--green { background: rgba(34,197,94,0.12); color: #4ade80; }
.re-stage-icon--amber { background: rgba(245,158,11,0.12); color: #fbbf24; }
.re-stage-icon--purple { background: rgba(139,92,246,0.12); color: #a78bfa; }
.re-stage-icon--teal { background: rgba(20,184,166,0.12); color: #2dd4bf; }

.re-stage-info {
  flex: 1;
}

.re-stage-name {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  margin-bottom: 2px;
}

.re-stage-bar-wrap {
  height: 4px;
  background: rgba(255,255,255,0.07);
  border-radius: 2px;
  overflow: hidden;
}

.re-stage-bar {
  height: 100%;
  border-radius: 2px;
  position: relative;
}

.re-stage-bar--blue { background: rgba(79,107,255,0.7); }
.re-stage-bar--green { background: rgba(34,197,94,0.7); }
.re-stage-bar--amber { background: rgba(245,158,11,0.7); }
.re-stage-bar--purple { background: rgba(139,92,246,0.7); }
.re-stage-bar--teal { background: rgba(20,184,166,0.7); }

.re-stage-value {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  min-width: 32px;
  text-align: right;
}

.re-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.re-metric {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 0.75rem;
  text-align: center;
}

.re-metric-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}

.re-metric-label {
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.re-metric--positive .re-metric-value {
  color: #4ade80;
}

/* === CREDIBILITY STRIP === */
.credibility-strip {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}

.credibility-strip__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.credibility-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex: 1;
  justify-content: center;
  padding: 0.25rem 1rem;
}

.credibility-item:not(:last-child) {
  border-right: 1px solid var(--color-border);
}

.credibility-item__icon {
  color: var(--color-accent);
  flex-shrink: 0;
}

.credibility-item__text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-steel);
  white-space: nowrap;
}

/* === AUTHORITY SECTION === */
.authority {
  padding: var(--section-padding) 0;
}

.authority__inner {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 6rem;
  align-items: start;
}

.authority__left {
  position: sticky;
  top: 100px;
}

.authority__label {
  margin-bottom: 1.25rem;
}

.authority__title {
  font-size: var(--text-4xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.authority__title em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-slate);
}

.authority__portrait-frame {
  margin-top: 2rem;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  position: relative;
}

.authority__portrait-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
}

.authority__portrait-initials {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-onyx);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.authority__portrait-name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-onyx);
  margin-bottom: 0.25rem;
}

.authority__portrait-role {
  font-size: var(--text-sm);
  color: var(--color-slate);
}

.authority__right {
  padding-top: 0.5rem;
}

.authority__body {
  font-size: var(--text-xl);
  color: var(--color-steel);
  line-height: 1.65;
  margin-bottom: 2rem;
  font-weight: 400;
}

.authority__body strong {
  color: var(--color-onyx);
  font-weight: 600;
}

.authority__credentials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.credential-item {
  padding: 1.25rem;
  background: var(--color-ivory);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.credential-item__number {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--color-onyx);
  margin-bottom: 0.25rem;
}

.credential-item__label {
  font-size: var(--text-sm);
  color: var(--color-slate);
  font-weight: 500;
  line-height: 1.4;
}

.authority__companies {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.authority__companies-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.authority__company-tag {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-steel);
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.authority__company-tag:hover {
  border-color: var(--color-onyx);
  color: var(--color-onyx);
}

/* === PROBLEM SECTION === */
.problem {
  background-color: var(--color-onyx);
  padding: var(--section-padding) 0;
  position: relative;
  overflow: hidden;
}

.problem__bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 80px 80px;
}

.problem__header {
  max-width: 640px;
  margin-bottom: 4.5rem;
  position: relative;
  z-index: 1;
}

.problem__title {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-top: 1rem;
}

.problem__title em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  color: rgba(255,255,255,0.45);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.problem-card {
  padding: 2.75rem;
  background: var(--color-dark-surface);
  transition: background var(--transition-base);
  position: relative;
}

.problem-card:hover {
  background: var(--color-dark-card);
}

.problem-card__number {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
  margin-bottom: 1.5rem;
}

.problem-card__headline {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 1rem;
}

.problem-card__body {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.45);
  line-height: 1.65;
  font-weight: 400;
}

.problem-card__accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: var(--color-accent);
  transition: height var(--transition-slow);
}

.problem-card:hover .problem-card__accent {
  height: 100%;
}

.problem__footer {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  position: relative;
  z-index: 1;
}

.problem__footer-text {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.4);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
}

/* === FRAMEWORK SECTION === */
.framework {
  padding: var(--section-padding) 0;
  background: var(--color-ivory);
}

.framework__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.framework__left {
  position: sticky;
  top: 100px;
}

.framework__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1rem 0 1.5rem;
}

.framework__description {
  font-size: var(--text-lg);
  color: var(--color-steel);
  line-height: 1.65;
  margin-bottom: 2rem;
  font-weight: 400;
}

.framework__questions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 2.5rem;
}

.framework__question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-base);
  color: var(--color-onyx);
  font-weight: 500;
}

.framework__question-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.framework__pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pillar-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
  cursor: default;
}

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

.pillar-item:hover .pillar-item__number {
  background: var(--color-onyx);
  color: var(--color-white);
}

.pillar-item__number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-steel);
  flex-shrink: 0;
  transition: all var(--transition-base);
  letter-spacing: 0;
}

.pillar-item__content {}

.pillar-item__title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-onyx);
  margin-bottom: 0.375rem;
  letter-spacing: -0.01em;
}

.pillar-item__desc {
  font-size: var(--text-sm);
  color: var(--color-slate);
  line-height: 1.55;
}

/* === SERVICES SECTION === */
.services {
  padding: var(--section-padding) 0;
}

.services__header {
  max-width: 680px;
  margin-bottom: 5rem;
}

.services__title {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1rem 0 1.5rem;
}

.services__subtitle {
  font-size: var(--text-lg);
  color: var(--color-steel);
  line-height: 1.65;
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.service-row {
  display: grid;
  grid-template-columns: 56px 1fr 1fr auto;
  gap: 3rem;
  align-items: start;
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
  cursor: default;
}

.service-row:hover {
  background: var(--color-ivory);
  margin: 0 -2.5rem;
  padding-left: 2.5rem;
  padding-right: 2.5rem;
}

.service-row__num {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-border);
  padding-top: 0.25rem;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.service-row__main {}

.service-row__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-onyx);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.service-row__desc {
  font-size: var(--text-base);
  color: var(--color-steel);
  line-height: 1.6;
  font-weight: 400;
}

.service-row__impact-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: 0.625rem;
}

.service-row__impact-text {
  font-size: var(--text-sm);
  color: var(--color-onyx);
  line-height: 1.55;
  font-weight: 500;
}

.service-row__arrow {
  color: var(--color-border);
  padding-top: 0.25rem;
  transition: all var(--transition-base);
}

.service-row:hover .service-row__arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* === RESULTS SECTION === */
.results {
  padding: var(--section-padding) 0;
  background: var(--color-ivory);
}

.results__header {
  max-width: 600px;
  margin-bottom: 4.5rem;
}

.results__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-top: 1rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.result-card {
  padding: 2rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.result-card:hover {
  border-color: var(--color-onyx);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.result-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.result-card:hover::before {
  transform: scaleX(1);
}

.result-card__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  background: rgba(79,107,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.result-card__text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-onyx);
  letter-spacing: -0.02em;
  line-height: 1.35;
}

/* === CASE STUDIES SECTION === */
.case-studies {
  padding: var(--section-padding) 0;
}

.case-studies__header {
  max-width: 600px;
  margin-bottom: 4.5rem;
}

.case-studies__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-top: 1rem;
}

.case-studies-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.case-study-card {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition-base);
}

.case-study-card:hover {
  border-color: rgba(79,107,255,0.2);
  box-shadow: 0 8px 40px rgba(0,0,0,0.06);
}

.case-study-panel {
  padding: 2.5rem;
  border-right: 1px solid var(--color-border);
}

.case-study-panel:last-child {
  border-right: none;
}

.case-study-panel--outcome {
  background: var(--color-onyx);
  color: var(--color-white);
}

.case-study-panel__label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: 1rem;
}

.case-study-panel--outcome .case-study-panel__label {
  color: rgba(255,255,255,0.35);
}

.case-study-panel__text {
  font-size: var(--text-base);
  color: var(--color-steel);
  line-height: 1.65;
}

.case-study-panel--outcome .case-study-panel__text {
  color: rgba(255,255,255,0.75);
}

.case-study-panel__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background: rgba(79,107,255,0.1);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

/* === PHILOSOPHY SECTION === */
.philosophy {
  padding: var(--section-padding) 0;
  background: var(--color-onyx);
  position: relative;
  overflow: hidden;
}

.philosophy__bg {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 30% 50%, rgba(79,107,255,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.philosophy__inner {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.philosophy__quote {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin: 1.5rem 0 2rem;
}

.philosophy__quote em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  color: rgba(255,255,255,0.45);
}

.philosophy__body {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  font-weight: 400;
  max-width: 680px;
}

.philosophy__body p {
  margin-bottom: 1rem;
}

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

/* === FINAL CTA SECTION === */
.final-cta {
  padding: var(--section-padding) 0;
}

.final-cta__inner {
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 5rem;
  text-align: center;
  background: var(--color-ivory);
  position: relative;
  overflow: hidden;
}

.final-cta__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(79,107,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.final-cta__label {
  margin-bottom: 1.5rem;
}

.final-cta__title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 1.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.final-cta__subtitle {
  font-size: var(--text-lg);
  color: var(--color-steel);
  line-height: 1.65;
  max-width: 560px;
  margin: 0 auto 3rem;
}

.final-cta__micro {
  margin-top: 1.5rem;
  font-size: var(--text-sm);
  color: var(--color-slate);
}

/* Calendly embed */
.calendly-embed-container {
  max-width: 900px;
  margin: 3rem auto 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.06);
  background: var(--color-white);
}

.calendly-placeholder {
  padding: 4rem 2rem;
  text-align: center;
  background: var(--color-white);
}

.calendly-placeholder__icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.calendly-placeholder__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-onyx);
  margin-bottom: 0.5rem;
}

.calendly-placeholder__text {
  font-size: var(--text-base);
  color: var(--color-slate);
  margin-bottom: 1.5rem;
}

/* === FOOTER === */
.footer {
  background: var(--color-onyx);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--color-border-dark);
}

.footer__upper {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border-dark);
}

.footer__brand-name {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.footer__brand-tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.35);
  line-height: 1.55;
  max-width: 280px;
  margin-bottom: 1.5rem;
}

.footer__social {
  display: flex;
  gap: 0.75rem;
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--color-white);
  background: rgba(255,255,255,0.05);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: 1.25rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer__link {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.45);
  transition: color var(--transition-fast);
  font-weight: 400;
}

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

.footer__lower {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
}

.footer__copyright {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.25);
}

.footer__legal {
  display: flex;
  gap: 2rem;
}

.footer__legal a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.25);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: rgba(255,255,255,0.5);
}

/* === STICKY CTA BAR === */
.sticky-cta {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 990;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
  pointer-events: none;
}

.sticky-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.sticky-cta__btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--color-onyx);
  color: var(--color-white);
  padding: 0.875rem 1.5rem;
  border-radius: 100px;
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  transition: all var(--transition-base);
  border: 1px solid rgba(255,255,255,0.1);
}

.sticky-cta__btn:hover {
  background: #1a1a1d;
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}

.sticky-cta__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-green 2s ease-in-out infinite;
}

/* === SCROLL ANIMATIONS === */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-very-slow) ease, transform var(--transition-very-slow) ease;
}

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

.fade-in {
  opacity: 0;
  transition: opacity var(--transition-very-slow) ease;
}

.fade-in.is-visible {
  opacity: 1;
}

.fade-up--delay-1 { transition-delay: 0.1s; }
.fade-up--delay-2 { transition-delay: 0.2s; }
.fade-up--delay-3 { transition-delay: 0.3s; }
.fade-up--delay-4 { transition-delay: 0.4s; }
.fade-up--delay-5 { transition-delay: 0.5s; }

/* === PAGE HERO (inner pages) === */
.page-hero {
  background: var(--color-onyx);
  padding: 9rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-hero__eyebrow {
  margin-bottom: 1.5rem;
}

.page-hero__title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.04em;
  line-height: 1.0;
  margin-bottom: 1.5rem;
}

.page-hero__title em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  color: rgba(255,255,255,0.45);
}

.page-hero__subtitle {
  font-size: var(--text-xl);
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  max-width: 600px;
}

/* === DIVIDER === */
.section-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0;
}

/* === INLINE SECTION LABELS === */
.section-label-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-label-row .eyebrow {
  margin-bottom: 0;
}

.section-label-row__line {
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* === UTILITY CLASSES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-auto { margin-top: auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* === RESPONSIVE === */
@media (max-width: 1100px) {
  :root {
    --section-padding: 100px;
    --container-padding: 2rem;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero__content {
    max-width: 100%;
  }

  .authority__inner {
    grid-template-columns: 300px 1fr;
    gap: 4rem;
  }

  .framework__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .framework__left {
    position: static;
  }

  .services-list .service-row {
    grid-template-columns: 40px 1fr 1fr;
  }

  .service-row__arrow {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --section-padding: 80px;
    --section-padding-sm: 60px;
  }

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

  .authority__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .authority__left {
    position: static;
  }

  .authority__portrait-frame {
    max-width: 300px;
  }

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

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

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

  .case-study-card {
    grid-template-columns: 1fr;
  }

  .case-study-panel {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .case-study-panel--outcome {
    border-bottom: none;
  }

  .services-list .service-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .service-row__num {
    display: none;
  }

  .footer__upper {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .final-cta__inner {
    padding: 3.5rem 2rem;
  }
}

@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__mobile-toggle {
    display: flex;
  }

  .nav__cta .btn {
    display: none;
  }

  .hero__inner {
    padding: 4rem 0 3rem;
  }
}

@media (max-width: 600px) {
  :root {
    --section-padding: 60px;
    --section-padding-sm: 40px;
    --container-padding: 1.25rem;
  }

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

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

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

  .footer__lower {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .credibility-strip__inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
  }

  .credibility-item {
    flex: 0 0 50%;
    justify-content: flex-start;
    padding: 0.75rem 1.25rem;
    border-right: none !important;
    border-bottom: 1px solid var(--color-border);
  }

  .credibility-item:last-child {
    border-bottom: none;
  }

  .sticky-cta {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }

  .sticky-cta__btn {
    width: 100%;
    justify-content: center;
    border-radius: var(--radius-base);
  }
}