/* =========================================================
   StepStone Partners
   ---------------------------------------------------------
   Vanilla CSS, no build step. Edit anything below freely.
   Section order mirrors index.html for easy navigation.
   ========================================================= */


/* =========================================================
   1. Design tokens
   ========================================================= */

:root {
  /* --- Brand colours (locked palette — bolder direction) --- */
  --color-anchor: #002233;       /* headings, body emphasis, dark sections, logo */
  --color-signature: #11425D;    /* links, eyebrows, brand signal */
  --color-cta: #C5DC44;          /* primary CTA — one moment per screen */
  --color-canvas: #F4F6F8;       /* page background — cool, near-white */
  --color-soft-accent: #C0D6EA;  /* bio cards, decorative blocks, tags */
  --color-support: #C5C0C9;      /* borders, dividers, secondary UI */
  --color-body-text: #4A5876;    /* body copy (derived utility) */

  /* Hover / state colours (derived) */
  --color-cta-hover: #B5CC34;
  --color-link-hover: #002233;

  /* --- Typography --- */
  --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Fluid type scale */
  --text-display: clamp(2.5rem, 4vw + 1.25rem, 5rem);
  --text-section-heading: clamp(2rem, 2.5vw + 1rem, 2.75rem);
  --text-h3: clamp(1.5rem, 1vw + 1rem, 1.875rem);
  --text-lede: clamp(1.125rem, 0.5vw + 1rem, 1.375rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-eyebrow: 0.75rem;

  /* --- Spacing scale --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  /* --- Layout --- */
  --max-width: 1140px;
  --max-width-narrow: 760px;
  --container-padding: clamp(1.25rem, 4vw, 2.5rem);
  --section-padding-y: clamp(4rem, 8vw, 8rem);

  /* --- Radii / borders / motion --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --border-subtle: 1px solid var(--color-support);
  --transition-base: 200ms ease;
}


/* =========================================================
   2. Reset & base
   ========================================================= */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

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

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

ul, ol {
  list-style: none;
}

a {
  color: var(--color-signature);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-link-hover);
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-cta);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}


/* =========================================================
   3. Typography (DM Serif Display variable, weight 400 default)
   ========================================================= */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--color-anchor);
}

h1 {
  font-size: var(--text-display);
  letter-spacing: -0.025em;
  line-height: 1.05;
}

h2 {
  font-size: var(--text-section-heading);
  line-height: 1.1;
}

h3 {
  font-size: var(--text-h3);
  letter-spacing: -0.01em;
  line-height: 1.15;
}

p {
  color: var(--color-body-text);
}

p + p {
  margin-top: var(--space-3);
}


/* =========================================================
   4. Layout primitives
   ========================================================= */

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

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

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}


/* =========================================================
   5. Eyebrows
   ========================================================= */

.eyebrow {
  display: inline-block;
  background: var(--color-signature);
  color: var(--color-canvas);
  font-size: var(--text-small);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  margin-bottom: var(--space-5);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--text-eyebrow);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-signature);
  margin-bottom: var(--space-6);
}


/* =========================================================
   6. Buttons
   ========================================================= */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  padding: 0.875rem 1.625rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background: var(--color-cta);
  color: var(--color-anchor);
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  color: var(--color-anchor);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px -8px rgba(0, 34, 51, 0.4);
}


/* =========================================================
   7. Header
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-canvas);
  padding: var(--space-4) 0;
  border-bottom: var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.875rem, 2vw, 1.75rem);
  font-size: 0.9375rem;
}

.site-nav a {
  color: var(--color-body-text);
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--color-anchor);
}

.nav-cta {
  color: var(--color-anchor) !important;
  padding: 0.5rem 1.125rem;
  border: 1px solid var(--color-anchor);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-cta:hover {
  background: var(--color-anchor);
  color: var(--color-canvas) !important;
}

@media (max-width: 720px) {
  .site-nav a:not(.nav-cta) {
    display: none;
  }
}

/* Logo image sizing */
.logo img {
  height: 50px;
  width: auto;
  display: block;
  margin-left: -9px;
}


/* =========================================================
   8. Hero
   ========================================================= */

.hero {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 6rem);
}

.hero h1 {
  max-width: 22ch;
  margin-bottom: var(--space-5);
}

.lede {
  font-size: var(--text-lede);
  line-height: 1.5;
  max-width: 56ch;
  margin-bottom: var(--space-7);
  color: var(--color-body-text);
}


/* =========================================================
   9. Stats banner — dark anchor background
   ========================================================= */

.stats-band {
  background: var(--color-anchor);
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  text-align: center;
}

@media (min-width: 720px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    text-align: left;
  }
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw + 0.75rem, 3.75rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--color-canvas);
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--color-support);
  line-height: 1.4;
  font-weight: 500;
}


/* =========================================================
   10. Industries (Industry Agnostic)
   ---------------------------------------------------------
   Static grid. Each industry in Fraunces with a thin
   support-grey divider below. Editorial credits style.
   ========================================================= */

.industries-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.industries-lede {
  font-size: 1.0625rem;
  line-height: 1.55;
  max-width: 56ch;
  color: var(--color-anchor);
  margin-bottom: var(--space-6);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 clamp(1.5rem, 3vw, 2.5rem);
}

@media (max-width: 720px) {
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .industries-grid {
    grid-template-columns: 1fr;
  }
}

.industry-item {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 0.75vw + 0.9rem, 1.375rem);
  font-weight: 400;
  color: var(--color-anchor);
  letter-spacing: -0.005em;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-support);
}


/* =========================================================
   11. Services — "What we do" (illustrated cards)
   ---------------------------------------------------------
   Uniform card style on canvas. Visual interest comes from
   the abstract SVG illustration in each card.
   ========================================================= */

.section-lede {
  font-size: var(--text-lede);
  line-height: 1.55;
  max-width: 62ch;
  color: var(--color-anchor);
  margin-bottom: var(--space-8);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 760px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(2.5rem, 5vw, 4rem);
  }
}

.service-icon {
  display: block;
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-anchor);
}

.service-icon svg {
  width: clamp(56px, 6vw, 72px);
  height: auto;
  display: block;
}

.service-group h3 {
  margin-bottom: var(--space-2);
  color: var(--color-anchor);
}

.service-summary {
  color: var(--color-body-text);
  margin-bottom: var(--space-4);
  font-size: 1.0625rem;
  line-height: 1.55;
}

.service-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-group li {
  color: var(--color-anchor);
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.service-group li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-support);
}


/* =========================================================
   12. Customer quote section — dark signature background
   ========================================================= */

.quote-section {
  background: var(--color-signature);
  padding: clamp(4rem, 8vw, 6.5rem) 0;
  border-top: 3px solid var(--color-anchor);
  border-bottom: 3px solid var(--color-anchor);
  display: none;
}

.testimonial {
  text-align: center;
}

.testimonial-text {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.5rem, 2.5vw + 0.75rem, 2.25rem);
  line-height: 1.35;
  color: var(--color-canvas);
  margin-bottom: var(--space-5);
  letter-spacing: -0.005em;
}

.testimonial-attr {
  font-family: var(--font-body);
}

.attr-name {
  color: var(--color-canvas);
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.attr-title {
  color: var(--color-support);
  font-size: var(--text-small);
}


/* =========================================================
   13. Methodology — "How we work"
   ========================================================= */

.principles {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 5vw, 4.5rem);
}

.principle {
  position: relative;
  padding-left: var(--space-4);
}

.principle::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 3px;
  background: var(--color-signature);
  border-radius: 2px;
}

.principle h3 {
  font-size: clamp(1.625rem, 1.5vw + 1rem, 2rem);
  margin-bottom: var(--space-3);
}

.principle p {
  font-size: 1.0625rem;
  line-height: 1.65;
  max-width: 62ch;
  color: var(--color-body-text);
}


/* =========================================================
   14. Bios — "Who we are"
   ---------------------------------------------------------
   Editorial layout. No card background — photo and text
   sit on canvas. Photo has a thin support-grey border for
   definition.
   ========================================================= */

.bios {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 760px) {
  .bios {
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

.bio-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.bio-photo {
  width: clamp(120px, 14vw, 160px);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
  border: 1px solid var(--color-support);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.bio-body {
  flex: 1;
  min-width: 0;
}

.bio-card h3 {
  margin-bottom: var(--space-1);
  font-size: clamp(1.5rem, 1vw + 1rem, 1.75rem);
}

.bio-title {
  font-size: var(--text-small);
  color: var(--color-signature);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.bio-card p:not(.bio-title) {
  color: var(--color-anchor);
  line-height: 1.65;
}


/* =========================================================
   15. CTA section — the one loud moment (anchor dark)
   ========================================================= */

.cta-section {
  background: var(--color-anchor);
  padding: clamp(5rem, 10vw, 8rem) 0;
  text-align: center;
}

.cta-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4.5vw + 1rem, 4rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--color-canvas);
  max-width: 22ch;
  margin: 0 auto var(--space-4);
}

.cta-sub {
  font-size: var(--text-lede);
  color: var(--color-support);
  margin: 0 auto var(--space-6);
  max-width: 50ch;
  line-height: 1.5;
}


/* =========================================================
   16. FAQs — exclusive accordion (native HTML <details>)
   ---------------------------------------------------------
   Uses the name="" attribute on <details> for built-in
   exclusive behaviour: opening one closes the others.
   No JavaScript required.
   ========================================================= */

.faq-section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.faq-group {
  margin-bottom: clamp(2.5rem, 4vw, 3.5rem);
}

.faq-group:last-child {
  margin-bottom: 0;
}

.faq-group-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.375rem, 1vw + 1rem, 1.625rem);
  color: var(--color-anchor);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.faq-item {
  border-bottom: 1px solid var(--color-support);
}

.faq-item:first-of-type {
  border-top: 1px solid var(--color-support);
}

.faq-question {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(1rem, 0.5vw + 0.875rem, 1.1875rem);
  line-height: 1.4;
  color: var(--color-signature);
  padding: 1.5rem 3rem 1.5rem 0;
  cursor: pointer;
  position: relative;
  list-style: none;
  transition: color var(--transition-base);
}

/* Hide native default markers across browsers */
.faq-question::-webkit-details-marker { display: none; }
.faq-question::marker { display: none; content: ''; }

.faq-question:hover {
  color: var(--color-anchor);
}

/* Custom +/− icon */
.faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-signature);
  line-height: 1;
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-question::after {
  content: '\2212'; /* minus sign */
}

.faq-answer {
  padding: 0 3rem 1.75rem 0;
}

.faq-answer p {
  color: var(--color-body-text);
  line-height: 1.65;
  font-size: 1rem;
  max-width: 64ch;
}

.faq-answer p + p {
  margin-top: 0.875rem;
}


/* =========================================================
   17. Footer
   ========================================================= */

.site-footer {
  background: var(--color-anchor);
  padding: var(--space-6) 0 var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.125rem;
  color: var(--color-canvas);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-support);
  transition: color var(--transition-base);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  display: block;
}

.social-icon:hover {
  color: var(--color-canvas);
}

.footer-meta {
  font-size: var(--text-small);
  color: var(--color-support);
}

@media (max-width: 480px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: var(--space-4);
  }
}

.footer-brand img {
  height: 39px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}