/* ============================================================
   Customer Growth & Delivery — style.css
   All colours via CSS custom properties — no hardcoded hex.
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-body-text);
  background: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--color-link-hover);
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

/* ----- Layout ----- */
.container {
  width: min(calc(100% - 2rem), var(--container-max));
  margin-inline: auto;
}

.section {
  padding: var(--space-8) 0;
}

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

.section-navy {
  background: var(--color-navy-900);
  color: var(--color-inverse-text);
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4,
.section-navy .eyebrow {
  color: #fff;
}

.section-navy p,
.section-navy .lead {
  color: rgba(248, 250, 252, 0.88);
}

.section-ivory {
  background: var(--color-ivory-100);
}

/* ----- Typography ----- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--color-teal-700);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3, h4 {
  margin-bottom: 1rem;
  color: var(--color-heading);
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); font-weight: 750; }
h2 { font-size: clamp(1.8rem, 3.2vw, 3rem);  font-weight: 720; }
h3 { font-size: clamp(1.2rem, 1.8vw, 1.6rem); font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }

p {
  margin-bottom: 1rem;
  max-width: 72ch;
}

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

.lead {
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  color: var(--color-slate-800);
  line-height: 1.7;
}

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

.section-heading {
  margin-bottom: 0.5rem;
}

.section-intro {
  margin-bottom: 3rem;
  max-width: 68ch;
}

/* ----- Nav ----- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(245, 241, 232, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(16, 42, 67, 0.08);
}

.site-nav.scrolled {
  box-shadow: 0 2px 16px var(--color-shadow);
}

.nav-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-decoration: none;
}

.nav-logo-name {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-navy-900);
}

.nav-logo-sub {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-muted-text);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links li a {
  color: var(--color-slate-800);
  font-weight: 600;
  font-size: 0.9rem;
  transition: color 150ms ease;
}

.nav-links li a:hover,
.nav-links li a:focus-visible {
  color: var(--color-navy-900);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-navy-900);
  border-radius: 2px;
  transition: transform 250ms ease, opacity 250ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----- Buttons ----- */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
  text-decoration: none;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-secondary:hover,
.btn-secondary:focus-visible {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary {
  color: #fff;
  background: var(--color-button-primary);
  box-shadow: 0 12px 28px rgba(47, 122, 123, 0.24);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #fff;
  background: var(--color-button-primary-hover);
  box-shadow: 0 16px 36px rgba(47, 122, 123, 0.32);
}

.btn-secondary {
  color: var(--color-navy-900);
  background: transparent;
  border-color: rgba(16, 42, 67, 0.28);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--color-navy-900);
  background: rgba(16, 42, 67, 0.05);
  color: var(--color-navy-900);
}

/* Nav CTA */
.nav-cta.btn-primary {
  min-height: 40px;
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

/* Hero button variants */
.hero .btn-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

.hero .btn-secondary:hover,
.hero .btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.72);
  color: #fff;
}

/* ----- Hero ----- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(5rem, 9vw, 8rem) 0;
  color: var(--color-inverse-text);
  background:
    radial-gradient(circle at 18% 12%, rgba(63, 142, 143, 0.32), transparent 36%),
    linear-gradient(135deg, var(--color-navy-950), var(--color-navy-900));
}

.hero h1 {
  max-width: 16ch;
  color: #fff;
}

.hero .lead {
  max-width: 62ch;
  color: rgba(248, 250, 252, 0.9);
  margin-top: 1.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

/* Page hero (inner pages) */
.page-hero {
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(63, 142, 143, 0.28), transparent 36%),
    linear-gradient(135deg, var(--color-navy-950), var(--color-navy-900));
  color: var(--color-inverse-text);
}

.page-hero h1 {
  max-width: 20ch;
  color: #fff;
}

.page-hero .lead {
  max-width: 60ch;
  color: rgba(248, 250, 252, 0.88);
  margin-top: 1rem;
}

/* ----- Grid ----- */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

/* ----- Cards ----- */
.card {
  padding: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 36px var(--color-shadow);
}

.card h3 { margin-bottom: 0.65rem; }
.card h4 { margin-bottom: 0.5rem; }

.card-soft {
  background: var(--color-warm-white);
  border-color: var(--color-border);
}

.card-accent {
  background: var(--color-accent-soft);
  border-color: rgba(47, 122, 123, 0.2);
}

.card-number {
  width: 2.4rem;
  height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: #fff;
  background: var(--color-teal-600);
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.95rem;
  flex-shrink: 0;
}

/* Service cards */
.service-card {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 36px var(--color-shadow);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px var(--color-shadow);
}

.service-card h3 { margin-bottom: 0.5rem; }

.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-teal-700);
}

.service-card .card-link:hover {
  color: var(--color-teal-600);
  text-decoration: none;
  gap: 0.55rem;
}

/* Blueprint pillar cards */
.pillar {
  padding: 1.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px var(--color-shadow);
}

/* ----- Proof bar ----- */
.proof-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.proof-item {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.proof-item strong {
  display: block;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.proof-item span {
  font-size: 0.85rem;
  color: rgba(248, 250, 252, 0.78);
}

/* ----- Process steps ----- */
.process-steps {
  display: grid;
  gap: 1.25rem;
  counter-reset: step;
}

.process-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.step-num {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-teal-600);
  color: #fff;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.95rem;
}

.step-body h3 { margin-bottom: 0.35rem; font-size: 1.05rem; }
.step-body p  { margin: 0; font-size: 0.95rem; color: var(--color-muted-text); }

/* ----- CTA panel ----- */
.cta-panel {
  padding: clamp(2.5rem, 5vw, 4rem);
  border-radius: calc(var(--radius-lg) + 8px);
  background:
    radial-gradient(circle at 80% 20%, rgba(63, 142, 143, 0.25), transparent 30%),
    linear-gradient(135deg, var(--color-navy-900), var(--color-navy-800));
  color: #fff;
  box-shadow: 0 24px 60px rgba(11, 31, 51, 0.2);
}

.cta-panel h2,
.cta-panel p { color: #fff; max-width: 54ch; }

.cta-panel .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

/* ----- Table ----- */
.content-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 12px 34px var(--color-shadow);
}

.content-table th,
.content-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-soft);
  text-align: left;
  vertical-align: top;
  font-size: 0.95rem;
}

.content-table th {
  color: #fff;
  background: var(--color-navy-900);
  font-weight: 700;
}

.content-table tr:last-child td { border-bottom: none; }

/* ----- Contact form ----- */
.form-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--color-border);
}

.tab-btn {
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-muted-text);
  cursor: pointer;
  transition: color 150ms ease, border-color 150ms ease;
}

.tab-btn[aria-selected="true"] {
  color: var(--color-teal-700);
  border-bottom-color: var(--color-teal-600);
}

.tab-panel { display: none; }
.tab-panel[aria-hidden="false"] { display: block; }

.form-field {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.form-field label {
  color: var(--color-heading);
  font-weight: 700;
  font-size: 0.92rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--color-body-text);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 150ms ease, outline 150ms ease;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 3px solid rgba(47, 122, 123, 0.2);
  border-color: var(--color-teal-600);
}

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

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
}

.form-message {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-top: 1rem;
}

.form-message.success {
  display: block;
  background: var(--color-accent-soft);
  color: var(--color-teal-700);
  border: 1px solid rgba(47, 122, 123, 0.2);
}

.form-message.error {
  display: block;
  background: #fff0f0;
  color: #c0392b;
  border: 1px solid rgba(192, 57, 43, 0.2);
}

/* ----- FAQ ----- */
.faq-list { display: grid; gap: 1rem; }

details.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 16px var(--color-shadow);
}

details.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  color: var(--color-heading);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
  user-select: none;
}

details.faq-item summary::-webkit-details-marker { display: none; }

details.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-teal-600);
  flex-shrink: 0;
  transition: transform 250ms ease;
}

details.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-body {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-body-text);
}

.faq-body p { max-width: none; }

/* ----- Insights grid ----- */
.insights-categories {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.insight-category {
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.insight-category h3 { margin-bottom: 0.4rem; font-size: 1.05rem; }
.insight-category p  { margin: 0; font-size: 0.93rem; color: var(--color-muted-text); }

/* ----- Footer ----- */
.site-footer {
  padding: 3.5rem 0 2rem;
  background: var(--color-navy-950);
  color: rgba(248, 250, 252, 0.8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.footer-brand-tagline {
  font-size: 0.88rem;
  line-height: 1.55;
  color: rgba(248, 250, 252, 0.72);
  max-width: 38ch;
  margin-top: 0.75rem;
}

.footer-heading {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, 0.55);
  margin-bottom: 1rem;
}

.footer-links {
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  color: rgba(248, 250, 252, 0.82);
  font-size: 0.9rem;
  transition: color 150ms ease;
}

.footer-links a:hover {
  color: #fff;
  text-decoration: none;
}

.footer-contact a {
  color: rgba(248, 250, 252, 0.82);
  font-size: 0.9rem;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(248, 250, 252, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: rgba(248, 250, 252, 0.48);
}

/* ----- Who We Help audience blocks ----- */
.audience-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--color-border-soft);
}

.audience-block:last-child { border-bottom: none; }

.audience-block ul {
  list-style: disc;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.4rem;
}

.audience-block ul li { font-size: 0.95rem; color: var(--color-body-text); }

/* ----- About page experience list ----- */
.experience-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.experience-item {
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-left: 4px solid var(--color-teal-600);
  border-radius: var(--radius-sm);
}

.experience-item h4 { margin-bottom: 0.5rem; }

.experience-item ul {
  list-style: disc;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.3rem;
}

.experience-item ul li { font-size: 0.93rem; color: var(--color-muted-text); }

/* ----- Failure/state table ----- */
.state-table-wrap { overflow-x: auto; margin-top: 2rem; }

/* ----- Utility ----- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.text-center { text-align: center; }
.text-center p { margin-inline: auto; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* ----- Responsive ----- */
@media (max-width: 960px) {
  .grid-3,
  .grid-4,
  .grid-5,
  .proof-bar {
    grid-template-columns: 1fr 1fr;
  }

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

  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-ivory-100);
    border-top: 1px solid rgba(16, 42, 67, 0.08);
    border-bottom: 1px solid rgba(16, 42, 67, 0.08);
    padding: 1.25rem 1rem;
    gap: 1rem;
    box-shadow: 0 8px 24px var(--color-shadow);
  }

  .site-nav { position: relative; }

  .audience-block {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .grid-5,
  .proof-bar,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section { padding: 3.5rem 0; }
  .hero    { padding: 4.5rem 0; }
  .page-hero { padding: 3rem 0; }

  .nav-inner { min-height: 68px; }

  .cta-panel { padding: 2rem; }
}