:root {
  --accent-900: #1e1b4b;
  --accent-800: #322d75;
  --accent-700: #4338ca;
  --accent-600: #4f46e5;
  --accent-500: #6366f1;
  --accent-300: #a5b4fc;
  --accent-100: #e7e5fb;
  --accent-50: #f4f3fe;

  --ink: #15131f;
  --ink-soft: #5c5a72;
  --paper: #f8f7f4;
  --line: #e6e2f0;

  --radius: 14px;
  --shadow: 0 10px 30px -12px rgba(30, 27, 75, 0.18);
  --container: 1160px;
  --container-narrow: 760px;

  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Neue Montreal";
  src: url("NeueMontreal/NeueMontreal-BoldItalic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

body {
  margin: 0;
  font-family: "Neue Montreal", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  margin: 0;
  padding: 0;
}

h1, h2, h3, p {
  margin: 0;
}

h1, h2, h3 {
  font-family: "Neue Montreal", sans-serif;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

.center {
  text-align: center;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 36px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1.08rem;
  font-family: inherit;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-600);
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(79, 70, 229, 0.55);
}

.btn-primary:hover {
  background: var(--accent-700);
  transform: translateY(-1px);
}

.btn-small {
  padding: 12px 22px;
  font-size: 0.92rem;
}

.btn-full {
  width: 100%;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 247, 244, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 20px -18px rgba(30, 27, 75, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 84px;
}

.brand {
  display: flex;
  align-items: center;
  color: var(--accent-900);
  text-decoration: none;
}

.brand-name {
  font-family: "Neue Montreal", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.brand-logo {
  height: 50px;
  width: auto;
  display: block;
}

.footer-logo {
  height: 46px;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex: 1;
}

.main-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  transition: color 0.15s ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--accent-700);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--accent-900);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- Hero ---------- */

.hero {
  padding: 84px 0 64px;
  text-align: center;
  background: radial-gradient(circle at top, var(--accent-50), var(--paper) 65%);
}

.hero-page {
  padding: 64px 0 48px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-700);
  background: var(--accent-100);
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.eyebrow.center {
  display: block;
  width: fit-content;
  margin: 0 auto 20px;
}

.hero-title {
  font-size: clamp(2.4rem, 5.6vw, 4.6rem);
  color: var(--accent-900);
  max-width: 900px;
  margin: 0 auto 28px;
}

.hero-lede {
  font-size: clamp(1.2rem, 1.6vw, 1.5rem);
  color: var(--ink-soft);
  max-width: 740px;
  margin: 0 auto 36px;
}

.trust-bar {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 28px;
  margin-top: 36px;
  padding: 0;
}

.trust-bar li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.trust-bar li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-600);
  font-weight: 700;
}

/* ---------- Sections ---------- */

.section {
  padding: 88px 0;
}

.section-alt {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  color: var(--accent-900);
  margin-bottom: 22px;
}

.section-title.center {
  text-align: center;
  max-width: 860px;
  margin-inline: auto;
}

.section-lede {
  color: var(--ink-soft);
  font-size: clamp(1.1rem, 1.4vw, 1.3rem);
  max-width: 720px;
}

.section-lede.center {
  margin: 0 auto 40px;
  text-align: center;
}

.prose {
  margin-top: 32px;
  display: grid;
  gap: 22px;
}

.prose p {
  color: var(--ink-soft);
  font-size: 1.15rem;
}

.problem-list {
  list-style: none;
  display: grid;
  gap: 16px;
  margin: 6px 0;
}

.problem-list li {
  padding-left: 30px;
  position: relative;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.problem-list li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent-600);
  font-weight: 700;
}

/* ---------- Chart ---------- */

.chart-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px 20px;
  margin-top: 48px;
}

.chart-caption {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: 18px;
}

/* ---------- Process ---------- */

.process-list {
  list-style: none;
  margin-top: 52px;
  display: grid;
  gap: 34px;
}

.process-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  align-items: start;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.process-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.process-number {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent-500);
}

.process-step h3 {
  color: var(--accent-900);
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.process-step p {
  color: var(--ink-soft);
  font-size: 1.08rem;
  max-width: 600px;
}

/* ---------- Services ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 52px;
}

.services-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 52px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
}

.service-card h3 {
  color: var(--accent-900);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.section-link {
  margin-top: 36px;
}

.section-link a {
  color: var(--accent-700);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.05rem;
}

.section-link a:hover {
  text-decoration: underline;
}

/* ---------- Pillars (the-system page) ---------- */

.pillar-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 52px;
}

.pillar {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
}

.pillar h3 {
  color: var(--accent-900);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.pillar > p {
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.pillar-list-items {
  list-style: none;
  display: grid;
  gap: 10px;
}

.pillar-list-items li {
  padding-left: 22px;
  position: relative;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.pillar-list-items li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--accent-600);
  font-weight: 700;
}

/* ---------- Case studies (results page) ---------- */

.case-study-list {
  display: grid;
  gap: 44px;
  margin-top: 8px;
}

.case-study {
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}

.case-study:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.case-study .section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 20px;
}

.case-study-detail {
  color: var(--ink-soft);
  font-size: 1.02rem;
  margin-bottom: 14px;
}

.case-study-detail strong {
  color: var(--accent-900);
}

.section-note {
  margin-top: 40px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-style: italic;
}

/* ---------- Qualify ---------- */

.qualify-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.qualify-col {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
}

.qualify-heading {
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.qualify-yes {
  color: var(--accent-700);
}

.qualify-no {
  color: var(--ink-soft);
}

.qualify-list {
  list-style: none;
  display: grid;
  gap: 14px;
}

.qualify-list li {
  padding-left: 26px;
  position: relative;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.qualify-yes ~ .qualify-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-600);
  font-weight: 700;
}

.qualify-no ~ .qualify-list li::before {
  content: "×";
  position: absolute;
  left: 0;
  color: var(--ink-soft);
  font-weight: 700;
}

/* ---------- FAQ ---------- */

.faq-list {
  margin-top: 44px;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 26px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--accent-900);
  font-size: 1.1rem;
}

.faq-item p {
  color: var(--ink-soft);
  font-size: 1.02rem;
  margin-top: 14px;
}

/* ---------- Contact / close ---------- */

.ps-line {
  margin-top: 36px;
  color: var(--ink-soft);
  font-size: 1.02rem;
  max-width: 620px;
  margin-inline: auto;
}

/* ---------- Modal ---------- */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(21, 19, 31, 0.55);
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 100;
}

.modal-overlay.is-open {
  display: flex;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--accent-50);
  color: var(--ink-soft);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  z-index: 1;
}

.modal-close:hover {
  background: var(--accent-100);
  color: var(--accent-900);
}

.modal-title {
  color: var(--accent-900);
  font-size: 1.7rem;
  margin-bottom: 22px;
}

/* ---------- Contact form ---------- */

.contact-form-wrap {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-row {
  margin-bottom: 18px;
}

.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-900);
  margin-bottom: 6px;
}

.form-row .optional {
  font-weight: 400;
  color: var(--ink-soft);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 3px var(--accent-100);
}

.form-row input.is-invalid,
.form-row textarea.is-invalid {
  border-color: #d64545;
}

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

.form-banner {
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.88rem;
  margin-bottom: 20px;
}

.form-banner-success {
  background: var(--accent-100);
  color: var(--accent-800);
  border: 1px solid var(--accent-500);
}

.form-banner-error {
  background: #fdeceb;
  color: #9c2b23;
  border: 1px solid #f2b3ac;
}

.form-banner-error ul {
  list-style: disc;
  padding-left: 18px;
  margin: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
}

.footer-inner .brand-name {
  color: var(--accent-900);
  font-size: 1rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.footer-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.footer-nav a:hover {
  color: var(--accent-700);
}

.footer-copy {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

/* ---------- Back to top ---------- */

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--accent-700);
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 40;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-800);
}

/* ---------- Responsive ---------- */

@media (min-width: 1000px) {
  .hero {
    padding: 140px 0 96px;
  }

  .section {
    padding: 132px 0;
  }

  .chart-card {
    padding: 48px 56px 28px;
  }

  .services-grid,
  .qualify-grid,
  .services-row {
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .services-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .services-grid,
  .qualify-grid,
  .pillar-list,
  .services-row {
    grid-template-columns: 1fr;
  }

  .process-step {
    grid-template-columns: 40px 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 64px 0 48px;
  }

  .hero-page {
    padding: 48px 0 36px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    width: 100%;
    padding: 10px 0;
  }
}