/* =============================================================================
   ECHELON HEALTH — GLOBAL DESIGN SYSTEM
   echelonhealth.com | v1.0
   ============================================================================= */

/* ── 1. CUSTOM PROPERTIES ─────────────────────────────────────────────────── */
:root {
  /* Palette */
  --navy-950:  #03080F;
  --navy-900:  #060D18;
  --navy-850:  #0A1421;
  --navy-800:  #0D1B2A;
  --navy-750:  #101F31;
  --navy-700:  #142236;
  --navy-600:  #1A2E4A;
  --navy-500:  #243858;
  --slate-700: #3D5470;
  --slate-600: #4F6480;
  --slate-500: #64748B;
  --slate-400: #8899AA;
  --slate-300: #94A3B8;
  --slate-200: #CBD5E1;
  --slate-100: #E2E8F0;
  --slate-50:  #F1F5F9;
  --teal-700:  #005F80;
  --teal-600:  #0090B5;
  --teal-500:  #00B4D8;
  --teal-400:  #48CAE4;
  --teal-300:  #90E0EF;
  --teal-100:  #CAF0F8;
  --blue-600:  #2563EB;
  --blue-500:  #4F8EF7;
  --blue-400:  #7EB3FA;
  --blue-100:  #DBEAFE;
  --white:     #FFFFFF;
  --off-white: #F8FAFC;

  /* Semantic */
  --bg-dark:       var(--navy-900);
  --bg-darker:     var(--navy-950);
  --bg-mid:        var(--navy-800);
  --bg-card:       var(--navy-750);
  --bg-card-hover: var(--navy-700);
  --bg-light:      var(--off-white);
  --bg-light-alt:  var(--slate-50);
  --text-on-dark:  var(--white);
  --text-secondary: var(--slate-300);
  --text-muted:    var(--slate-400);
  --text-on-light: var(--navy-800);
  --text-light-sec: var(--slate-500);
  --accent:        var(--teal-500);
  --accent-light:  var(--teal-400);
  --accent-alt:    var(--blue-500);
  --border-dark:   rgba(255,255,255,0.07);
  --border-light:  var(--slate-100);

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

  /* Scale */
  --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;

  /* Spacing */
  --sp-1:  0.25rem;  --sp-2:  0.5rem;   --sp-3:  0.75rem;
  --sp-4:  1rem;     --sp-5:  1.25rem;  --sp-6:  1.5rem;
  --sp-8:  2rem;     --sp-10: 2.5rem;   --sp-12: 3rem;
  --sp-14: 3.5rem;   --sp-16: 4rem;     --sp-20: 5rem;
  --sp-24: 6rem;     --sp-28: 7rem;     --sp-32: 8rem;

  /* Layout */
  --container: 1280px;
  --container-wide: 1400px;
  --container-narrow: 900px;

  /* Radii */
  --r-sm:  4px;  --r-md:  8px;   --r-lg:  12px;
  --r-xl:  16px; --r-2xl: 24px;  --r-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.4);
  --shadow-xl:   0 16px 48px rgba(0,0,0,0.5);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.45), 0 0 0 1px rgba(0,180,216,0.25);
  --shadow-teal: 0 0 60px rgba(0,180,216,0.15);
  --glow-teal:   0 0 0 1px rgba(0,180,216,0.4), 0 0 20px rgba(0,180,216,0.2);

  /* Transitions */
  --ease:       250ms cubic-bezier(0.4,0,0.2,1);
  --ease-fast:  150ms cubic-bezier(0.4,0,0.2,1);
  --ease-slow:  400ms cubic-bezier(0.4,0,0.2,1);
  --ease-out:   300ms cubic-bezier(0,0,0.2,1);
}

/* ── 2. RESET & BASE ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-on-light);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: var(--r-sm); }

/* ── 3. TYPOGRAPHY ────────────────────────────────────────────────────────── */
.h1 { font-size: clamp(2.5rem, 6vw, var(--text-7xl)); font-weight: 700; line-height: 1.08; letter-spacing: -0.03em; }
.h2 { font-size: clamp(2rem, 4vw, var(--text-5xl));   font-weight: 700; line-height: 1.12; letter-spacing: -0.025em; }
.h3 { font-size: clamp(1.5rem, 3vw, var(--text-4xl)); font-weight: 650; line-height: 1.2;  letter-spacing: -0.02em; }
.h4 { font-size: clamp(1.25rem, 2vw, var(--text-2xl));font-weight: 650; line-height: 1.25; letter-spacing: -0.015em; }
.h5 { font-size: var(--text-xl);  font-weight: 600; line-height: 1.3; }
.h6 { font-size: var(--text-lg);  font-weight: 600; line-height: 1.4; }

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: var(--tracking-widest, 0.16em);
  text-transform: uppercase;
  color: var(--accent);
}

.lead { font-size: clamp(1.05rem, 2vw, var(--text-xl)); line-height: 1.65; color: var(--text-secondary); }

/* ── 4. LAYOUT ────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}
.container--wide   { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section {
  padding-block: var(--sp-24);
}
.section--sm  { padding-block: var(--sp-16); }
.section--lg  { padding-block: var(--sp-32); }
.section--dark { background: var(--bg-dark); color: var(--text-on-dark); }
.section--mid  { background: var(--bg-mid);  color: var(--text-on-dark); }
.section--light { background: var(--bg-light); }
.section--light-alt { background: var(--bg-light-alt); }

.section-header {
  margin-bottom: var(--sp-16);
}
.section-header .eyebrow { margin-bottom: var(--sp-3); }
.section-header h2 { margin-bottom: var(--sp-5); }
.section-header p  { max-width: 62ch; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }

/* ── 5. NAVIGATION ────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--sp-5) 0;
  transition: background var(--ease-slow), padding var(--ease-slow), border-color var(--ease-slow);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(6,13,24,0.94);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border-bottom-color: var(--border-dark);
  padding: var(--sp-3) 0;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}
.nav__logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--teal-500), var(--blue-500));
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav__logo-mark svg { width: 20px; height: 20px; }
.nav__logo-text {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav__logo-sub {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-400);
  display: block;
  line-height: 1;
  margin-top: 2px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--slate-300);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-md);
  transition: color var(--ease-fast), background var(--ease-fast);
  white-space: nowrap;
}
.nav__link:hover, .nav__link.is-active {
  color: var(--white);
  background: rgba(255,255,255,0.06);
}
.nav__actions { display: flex; align-items: center; gap: var(--sp-3); flex-shrink: 0; }
.nav__hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  color: var(--white);
  transition: background var(--ease-fast);
}
.nav__hamburger:hover { background: rgba(255,255,255,0.08); }
.nav__hamburger svg { width: 22px; height: 22px; }

/* Mobile Nav */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--navy-950);
  z-index: 99;
  flex-direction: column;
  padding: var(--sp-24) var(--sp-6) var(--sp-12);
  overflow-y: auto;
}
.nav__mobile.is-open { display: flex; }
.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-10);
}
.nav__mobile-link {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--slate-300);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--border-dark);
  transition: color var(--ease-fast);
}
.nav__mobile-link:hover { color: var(--white); }
.nav__mobile-close {
  position: absolute;
  top: var(--sp-5);
  right: var(--sp-6);
  color: var(--white);
  padding: var(--sp-2);
}

/* ── 6. BUTTONS ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--r-lg);
  transition: all var(--ease);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn--primary {
  background: linear-gradient(135deg, var(--teal-500), var(--teal-600));
  color: var(--white);
  box-shadow: 0 2px 12px rgba(0,180,216,0.35);
}
.btn--primary:hover {
  background: linear-gradient(135deg, var(--teal-400), var(--teal-500));
  box-shadow: 0 4px 20px rgba(0,180,216,0.45);
  transform: translateY(-1px);
}
.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--accent);
  padding-left: 0; padding-right: 0;
}
.btn--ghost:hover { color: var(--accent-light); }
.btn--ghost .btn-arrow { transition: transform var(--ease); }
.btn--ghost:hover .btn-arrow { transform: translateX(4px); }
.btn--light {
  background: var(--white);
  color: var(--navy-800);
  box-shadow: var(--shadow-md);
}
.btn--light:hover {
  background: var(--off-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn--lg { padding: 1rem 2rem; font-size: var(--text-base); border-radius: var(--r-xl); }
.btn--sm { padding: 0.5rem 1rem; font-size: var(--text-xs); }
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ── 7. HERO ──────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy-950);
  overflow: hidden;
  padding-top: 80px;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 25% 55%, rgba(0,180,216,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 75% 30%, rgba(79,142,247,0.05) 0%, transparent 55%),
    radial-gradient(ellipse 80% 40% at 50% 95%, rgba(6,13,24,0.8) 0%, transparent 60%);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--sp-20) 0 var(--sp-28);
  width: 100%;
}
.hero__inner {
  max-width: 780px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-6);
  padding: var(--sp-2) var(--sp-4);
  background: rgba(0,180,216,0.08);
  border: 1px solid rgba(0,180,216,0.2);
  border-radius: var(--r-full);
}
.hero__eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
.hero__title {
  color: var(--white);
  margin-bottom: var(--sp-6);
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--teal-400) 0%, var(--blue-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__lead {
  font-size: clamp(1rem, 2.2vw, var(--text-lg));
  line-height: 1.7;
  color: var(--slate-300);
  max-width: 58ch;
  margin-bottom: var(--sp-10);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-16);
}
.hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-8);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border-dark);
}
.hero__metric-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1;
}
.hero__metric-value span {
  background: linear-gradient(135deg, var(--teal-400), var(--blue-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__metric-label {
  font-size: var(--text-sm);
  color: var(--slate-400);
  margin-top: var(--sp-1);
}
.hero__scroll {
  position: absolute;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  color: var(--slate-400);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fade-bounce 2.5s ease-in-out infinite;
}
.hero__scroll svg { width: 20px; height: 20px; }

/* ── 8. SECTION: WHY ─────────────────────────────────────────────────────── */
.why-section {
  background: var(--bg-mid);
  padding: var(--sp-24) 0;
  position: relative;
  overflow: hidden;
}
.why-section::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal-700), transparent);
}
.why__quote {
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
  letter-spacing: -0.015em;
  max-width: 56ch;
  position: relative;
}
.why__quote::before {
  content: '"';
  font-size: 6rem;
  line-height: 0;
  position: absolute;
  top: 0.5em;
  left: -1rem;
  color: var(--teal-700);
  font-family: Georgia, serif;
}
.why__meta {
  margin-top: var(--sp-10);
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.why__divider {
  width: 48px; height: 2px;
  background: linear-gradient(90deg, var(--teal-500), var(--blue-500));
  flex-shrink: 0;
}
.why__caption { font-size: var(--text-sm); color: var(--slate-400); max-width: 42ch; line-height: 1.6; }
.why__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-16);
  padding-top: var(--sp-12);
  border-top: 1px solid var(--border-dark);
}
.why__pillar {
  padding: var(--sp-6);
  border-radius: var(--r-xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-dark);
  transition: border-color var(--ease), background var(--ease);
}
.why__pillar:hover {
  background: rgba(0,180,216,0.04);
  border-color: rgba(0,180,216,0.2);
}
.why__pillar-icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(0,180,216,0.15), rgba(79,142,247,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  color: var(--teal-400);
}
.why__pillar-icon svg { width: 20px; height: 20px; }
.why__pillar h4 { font-size: var(--text-base); font-weight: 600; color: var(--white); margin-bottom: var(--sp-2); }
.why__pillar p  { font-size: var(--text-sm); color: var(--slate-400); line-height: 1.6; }

/* ── 9. SECTION: SERVICES ────────────────────────────────────────────────── */
.services-section { background: var(--bg-light); }
.services-section .section-header h2 { color: var(--navy-800); }
.services-section .section-header p  { color: var(--slate-500); }

.service-card {
  background: var(--white);
  border: 1px solid var(--slate-100);
  border-radius: var(--r-2xl);
  padding: var(--sp-8);
  transition: box-shadow var(--ease), border-color var(--ease), transform var(--ease);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--blue-500));
  opacity: 0;
  transition: opacity var(--ease);
}
.service-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
  border-color: var(--slate-200);
  transform: translateY(-3px);
}
.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, rgba(0,180,216,0.1), rgba(79,142,247,0.08));
  border: 1px solid rgba(0,180,216,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-5);
  color: var(--teal-600);
}
.service-card__icon svg { width: 24px; height: 24px; }
.service-card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--navy-800);
  margin-bottom: var(--sp-3);
  letter-spacing: -0.015em;
}
.service-card p {
  font-size: var(--text-sm);
  color: var(--slate-500);
  line-height: 1.7;
  margin-bottom: var(--sp-5);
}
.service-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}
.service-card__list li {
  font-size: var(--text-sm);
  color: var(--slate-600, #475569);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.service-card__list li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--teal-500);
  flex-shrink: 0;
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--teal-600);
  transition: gap var(--ease-fast), color var(--ease-fast);
}
.service-card__link svg { width: 14px; height: 14px; transition: transform var(--ease-fast); }
.service-card:hover .service-card__link { color: var(--teal-500); }
.service-card:hover .service-card__link svg { transform: translateX(3px); }

/* ── 10. SECTION: INDUSTRIES ─────────────────────────────────────────────── */
.industries-section { background: var(--bg-dark); }

.industry-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-dark);
  border-radius: var(--r-2xl);
  padding: var(--sp-10) var(--sp-8);
  text-align: center;
  transition: background var(--ease), border-color var(--ease), transform var(--ease);
}
.industry-card:hover {
  background: rgba(0,180,216,0.05);
  border-color: rgba(0,180,216,0.25);
  transform: translateY(-4px);
}
.industry-card__icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,180,216,0.15), rgba(79,142,247,0.1));
  border: 1px solid rgba(0,180,216,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-6);
  color: var(--teal-400);
}
.industry-card__icon svg { width: 32px; height: 32px; }
.industry-card h3 { font-size: var(--text-xl); font-weight: 700; color: var(--white); margin-bottom: var(--sp-3); }
.industry-card p  { font-size: var(--text-sm); color: var(--slate-400); line-height: 1.7; margin-bottom: var(--sp-6); }
.industry-card__tags { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-2); }
.tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--slate-300);
}
.tag--accent { background: rgba(0,180,216,0.1); border-color: rgba(0,180,216,0.2); color: var(--teal-300); }

/* ── 11. SECTION: DIFFERENTIATORS ────────────────────────────────────────── */
.diff-section { background: var(--bg-light-alt); }
.diff-section .section-header h2 { color: var(--navy-800); }
.diff-section .section-header p  { color: var(--slate-500); }

.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-1);
}
.diff-item {
  display: flex;
  gap: var(--sp-5);
  padding: var(--sp-8);
  background: var(--white);
  border-radius: var(--r-xl);
  border: 1px solid var(--border-light);
  transition: box-shadow var(--ease);
}
.diff-item:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.07); }
.diff-item__number {
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--teal-500), var(--blue-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  width: 56px;
}
.diff-item__content h4 { font-size: var(--text-lg); font-weight: 700; color: var(--navy-800); margin-bottom: var(--sp-2); }
.diff-item__content p  { font-size: var(--text-sm); color: var(--slate-500); line-height: 1.7; }

/* ── 12. SECTION: LEADERSHIP PREVIEW ────────────────────────────────────── */
.leadership-section { background: var(--bg-dark); }

.leader-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--r-2xl);
  overflow: hidden;
  transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}
.leader-card:hover {
  border-color: rgba(0,180,216,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.leader-card__photo {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-600));
  position: relative;
  overflow: hidden;
}
.leader-card__photo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--teal-500), var(--blue-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.leader-card__body { padding: var(--sp-6); }
.leader-card__name { font-size: var(--text-xl); font-weight: 700; color: var(--white); margin-bottom: var(--sp-1); }
.leader-card__title { font-size: var(--text-sm); color: var(--accent); font-weight: 500; margin-bottom: var(--sp-4); }
.leader-card__bio { font-size: var(--text-sm); color: var(--slate-400); line-height: 1.7; margin-bottom: var(--sp-4); }
.leader-card__tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

/* ── 13. SECTION: INSIGHTS ───────────────────────────────────────────────── */
.insights-section { background: var(--bg-light); }
.insights-section .section-header h2 { color: var(--navy-800); }
.insights-section .section-header p  { color: var(--slate-500); }

.insight-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--r-2xl);
  overflow: hidden;
  transition: box-shadow var(--ease), transform var(--ease);
}
.insight-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.08); transform: translateY(-3px); }
.insight-card__img {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-600) 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.insight-card__img-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.3;
}
.insight-card__category {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
}
.insight-card__body { padding: var(--sp-6); }
.insight-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-xs);
  color: var(--slate-400);
  margin-bottom: var(--sp-3);
}
.insight-card__meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--slate-300); }
.insight-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1.35;
  margin-bottom: var(--sp-3);
  letter-spacing: -0.015em;
}
.insight-card p { font-size: var(--text-sm); color: var(--slate-500); line-height: 1.7; margin-bottom: var(--sp-5); }

/* ── 14. SECTION: CTA BAND ───────────────────────────────────────────────── */
.cta-section {
  background: var(--navy-950);
  position: relative;
  overflow: hidden;
  padding: var(--sp-24) 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 50%, rgba(0,180,216,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.cta-section__inner { position: relative; z-index: 1; text-align: center; }
.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--sp-5);
  max-width: 18ch;
  margin-inline: auto;
}
.cta-section p {
  font-size: var(--text-lg);
  color: var(--slate-300);
  max-width: 50ch;
  margin: 0 auto var(--sp-10);
  line-height: 1.7;
}
.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-4);
}

/* ── 15. FOOTER ──────────────────────────────────────────────────────────── */
.footer {
  background: var(--navy-950);
  border-top: 1px solid var(--border-dark);
  padding: var(--sp-20) 0 var(--sp-8);
}
.footer__main {
  display: grid;
  grid-template-columns: 280px 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-16);
}
.footer__brand p {
  font-size: var(--text-sm);
  color: var(--slate-400);
  line-height: 1.7;
  margin-top: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.footer__tagline {
  font-size: var(--text-xs);
  color: var(--teal-600);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer__col h5 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-300);
  margin-bottom: var(--sp-5);
}
.footer__links { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer__link {
  font-size: var(--text-sm);
  color: var(--slate-400);
  transition: color var(--ease-fast);
}
.footer__link:hover { color: var(--white); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border-dark);
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.footer__copy { font-size: var(--text-xs); color: var(--slate-500); }
.footer__legal { display: flex; gap: var(--sp-6); }
.footer__legal a {
  font-size: var(--text-xs);
  color: var(--slate-500);
  transition: color var(--ease-fast);
}
.footer__legal a:hover { color: var(--slate-300); }

/* ── 16. PAGE HERO (inner pages) ─────────────────────────────────────────── */
.page-hero {
  background: var(--bg-dark);
  padding: calc(var(--sp-24) + 60px) 0 var(--sp-20);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,180,216,0.3), transparent);
}
.page-hero .eyebrow { margin-bottom: var(--sp-4); }
.page-hero h1 { color: var(--white); margin-bottom: var(--sp-5); }
.page-hero p { color: var(--slate-300); max-width: 58ch; font-size: var(--text-lg); line-height: 1.7; }

/* ── 17. ABOUT PAGE ──────────────────────────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}
.value-card {
  padding: var(--sp-8);
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--r-2xl);
  transition: box-shadow var(--ease), border-color var(--ease);
}
.value-card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.07);
  border-color: rgba(0,180,216,0.2);
}
.value-card__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-2);
}
.value-card h4 { font-size: var(--text-lg); font-weight: 700; color: var(--navy-800); margin-bottom: var(--sp-3); }
.value-card p  { font-size: var(--text-sm); color: var(--slate-500); line-height: 1.7; }

.mission-vision {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-8);
}
.mv-card {
  padding: var(--sp-10) var(--sp-8);
  border-radius: var(--r-2xl);
  position: relative;
  overflow: hidden;
}
.mv-card--mission { background: var(--navy-800); border: 1px solid var(--border-dark); }
.mv-card--vision  { background: linear-gradient(135deg, var(--navy-700), var(--navy-600)); border: 1px solid rgba(0,180,216,0.2); }
.mv-card__type { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal-400); margin-bottom: var(--sp-4); }
.mv-card h3 { font-size: var(--text-2xl); font-weight: 700; color: var(--white); margin-bottom: var(--sp-5); letter-spacing: -0.02em; }
.mv-card p  { font-size: var(--text-base); color: var(--slate-300); line-height: 1.75; }

/* ── 18. CAPABILITIES PAGE ───────────────────────────────────────────────── */
.cap-section {
  padding: var(--sp-16) 0;
  border-bottom: 1px solid var(--border-light);
}
.cap-section:last-of-type { border-bottom: none; }
.cap-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--sp-16);
  align-items: start;
}
.cap-grid--reverse { direction: rtl; }
.cap-grid--reverse > * { direction: ltr; }
.cap-header__tag { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--sp-3); }
.cap-header h2 { font-size: var(--text-3xl); font-weight: 700; color: var(--navy-800); margin-bottom: var(--sp-4); letter-spacing: -0.02em; }
.cap-header p  { font-size: var(--text-base); color: var(--slate-500); line-height: 1.75; }
.cap-services { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }
.cap-service {
  padding: var(--sp-5) var(--sp-6);
  background: var(--bg-light-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--r-lg);
  transition: border-color var(--ease), background var(--ease);
}
.cap-service:hover {
  border-color: rgba(0,180,216,0.25);
  background: rgba(0,180,216,0.02);
}
.cap-service h5 { font-size: var(--text-base); font-weight: 600; color: var(--navy-800); margin-bottom: var(--sp-2); }
.cap-service p  { font-size: var(--text-sm); color: var(--slate-500); line-height: 1.6; }

/* ── 19. CONTACT PAGE ────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 520px;
  gap: var(--sp-16);
  align-items: start;
}
.contact-info__item {
  display: flex;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--border-dark);
}
.contact-info__item:last-child { border-bottom: none; }
.contact-info__icon {
  width: 44px; height: 44px;
  border-radius: var(--r-md);
  background: rgba(0,180,216,0.1);
  border: 1px solid rgba(0,180,216,0.2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--teal-400);
}
.contact-info__icon svg { width: 20px; height: 20px; }
.contact-info__label { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal-400); margin-bottom: var(--sp-1); }
.contact-info__value { font-size: var(--text-base); color: var(--white); font-weight: 500; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--r-2xl);
  padding: var(--sp-10);
}
.form-group { margin-bottom: var(--sp-5); }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--slate-300);
  margin-bottom: var(--sp-2);
}
.form-label span { color: var(--teal-500); }
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-sm);
  color: var(--white);
  transition: border-color var(--ease), box-shadow var(--ease);
  appearance: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--slate-500); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(0,180,216,0.12);
}
.form-select { cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394A3B8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right var(--sp-4) center; padding-right: var(--sp-10); }
.form-select option { background: var(--navy-800); color: var(--white); }
.form-textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
.form-submit { width: 100%; margin-top: var(--sp-2); }

/* ── 20. INSIGHTS PAGE ───────────────────────────────────────────────────── */
.insights-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-12);
}
.filter-btn {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--r-full);
  border: 1px solid var(--border-light);
  color: var(--slate-500);
  background: transparent;
  transition: all var(--ease-fast);
}
.filter-btn:hover, .filter-btn.is-active {
  background: var(--navy-800);
  border-color: var(--navy-800);
  color: var(--white);
}
.insights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-8); }
.insight-card--featured { grid-column: span 2; }
.insight-card--featured .insight-card__img { aspect-ratio: 16/7; }
.insight-card--featured h3 { font-size: var(--text-2xl); }

.newsletter-band {
  background: var(--bg-dark);
  padding: var(--sp-16) 0;
}
.newsletter-form {
  display: flex;
  gap: var(--sp-3);
  max-width: 480px;
}
.newsletter-form input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-lg);
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--text-sm);
  color: var(--white);
}
.newsletter-form input::placeholder { color: var(--slate-400); }
.newsletter-form input:focus { outline: none; border-color: var(--teal-500); }

/* ── 21. STATS BAR ───────────────────────────────────────────────────────── */
.stats-bar {
  background: var(--bg-mid);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
  padding: var(--sp-8) 0;
}
.stats-bar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-8);
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-value {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--teal-400), var(--blue-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--sp-1);
}
.stat-label { font-size: var(--text-sm); color: var(--slate-400); }
.stats-bar__divider {
  width: 1px;
  height: 48px;
  background: var(--border-dark);
}

/* ── 22. MISC COMPONENTS ─────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--slate-400);
  margin-bottom: var(--sp-8);
}
.breadcrumb a { color: var(--teal-500); }
.breadcrumb span { color: var(--slate-600); }

.divider-gradient {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,180,216,0.3) 50%, transparent);
  margin: var(--sp-16) 0;
}

.highlight-box {
  background: linear-gradient(135deg, rgba(0,180,216,0.06), rgba(79,142,247,0.04));
  border: 1px solid rgba(0,180,216,0.15);
  border-radius: var(--r-2xl);
  padding: var(--sp-8) var(--sp-10);
}

.text-gradient {
  background: linear-gradient(135deg, var(--teal-400), var(--blue-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* reveal animation (JS adds .is-visible) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4,0,0.2,1), transform 0.6s cubic-bezier(0.4,0,0.2,1);
}
.reveal.is-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; }

/* ── 23. ANIMATIONS ──────────────────────────────────────────────────────── */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}
@keyframes fade-bounce {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(6px); }
}
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ── 24. RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer__main { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; gap: var(--sp-10); }
  .cap-grid--reverse { direction: ltr; }
}

@media (max-width: 900px) {
  .nav__links, .nav__actions .btn { display: none; }
  .nav__hamburger { display: flex; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .mission-vision { grid-template-columns: 1fr; }
  .insights-grid { grid-template-columns: repeat(2, 1fr); }
  .insight-card--featured { grid-column: span 2; }
  .why__pillars { grid-template-columns: repeat(2, 1fr); }
  .stats-bar__divider { display: none; }
  .stats-bar__inner { justify-content: center; gap: var(--sp-10); }
  .hero__metrics { gap: var(--sp-6); }
  .footer__main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section { padding-block: var(--sp-16); }
  .section--lg { padding-block: var(--sp-20); }
  .grid-3 { grid-template-columns: 1fr; }
  .insights-grid { grid-template-columns: 1fr; }
  .insight-card--featured { grid-column: span 1; }
  .why__pillars { grid-template-columns: 1fr; }
  .hero__metrics { flex-direction: column; gap: var(--sp-4); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .cta-section__actions { flex-direction: column; align-items: center; }
  .footer__main { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .cap-services { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .contact-form { padding: var(--sp-6); }
  .diff-item { flex-direction: column; gap: var(--sp-3); }
  .diff-item__number { width: auto; }
}