@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700&display=swap');

:root {
  /* === Font Families === */
  --font-raleway: 'Raleway', sans-serif;
  --font-serif: 'Merriweather', serif;


  /* === Font Weights === */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* === Fluid Font Sizes (clamp-based) === */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);     /* 12–14px */
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);        /* 14–16px */
  --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);      /* 16–18px */
  --font-size-md: clamp(1.25rem, 1rem + 0.75vw, 1.5rem);        /* 20–24px */
  --font-size-lg: clamp(1.5rem, 1.2rem + 1vw, 2rem);            /* 24–32px */
  --font-size-xl: clamp(2rem, 1.6rem + 1.5vw, 2.5rem);          /* 32–40px */
  --font-size-xxl: clamp(2.5rem, 2rem + 2vw, 3.5rem);           /* 40–56px */
  --font-size-hero-p: clamp(1.5rem, 1.3rem + 0.6vw, 2rem);      /* 24–32px */

  /* 🎨 Brand Color Palette */
  --color-light-gray: #8B90A1;
  --color-paynes-gray: #545B6F;
  --color-cambridge-blue: #89B0AE;
  --color-mint-green: #BEE3DB;
  --color-sea-salt: #FAF9F9;
  --color-apricot: #FFD6BA;
  --color-emphasis: #EE4B2B;

  /* 🧠 Semantic Use Cases */
  --color-text-primary: var(--color-paynes-gray);
  --color-text-muted: var(--color-light-gray);
  --color-bg-light: var(--color-sea-salt);
  --color-bg-accent: var(--color-cambridge-blue);
  --color-button-bg: var(--color-apricot);
  --color-button-text: var(--color-paynes-gray);
  --color-accent: var(--color-mint-green);
  --color-error: var(--color-emphasis);

  /* === Fluid Spacing Scale === */
  --space-xs: clamp(0.5rem, 1vw, 1rem);     /* 8–16px */
  --space-sm: clamp(1rem, 2vw, 2rem);       /* 16–32px */
  --space-md: clamp(2rem, 4vw, 4rem);       /* 32–64px */
  --space-lg: clamp(4rem, 6vw, 6rem);       /* 64–96px */
}

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

/* === Typography Classes with Fluid Scaling === */

.h1 {
  font-family: var(--font-serif);
  font-size: var(--font-size-xxl);
  font-weight: var(--weight-semibold);
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.highlight {
  color: var(--color-cambridge-blue);
}
.main-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-xl);
  font-weight: var(--weight-bold);
  line-height: 1.2;
}

.card-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
}

.card-text {
  font-family: var(--font-raleway);
  font-size: var(--font-size-base);
  font-weight: var(--weight-regular);
  line-height: 1.6;
}

.body-text {
  font-family: var(--font-raleway);
  font-size: var(--font-size-base);
  font-weight: var(--weight-regular);
  line-height: 1.6;
}

.lead-text {
  font-family: var(--font-raleway);
  font-size: var(--font-size-md);
  font-weight: var(--weight-regular);
  line-height: 1.5;
}

.hero {
  margin-top: var(--space-lg); /* or padding-top if it has a background */
}

.hero-p {
  font-family: var(--font-raleway);
  font-size: var(--font-size-hero-p);
  font-weight: var(--weight-regular);
  line-height: 1.6;
  padding-bottom: var(--space-sm);
}

.hero-p a{
  color: var(--color-text-primary);
}

.hero-p a:hover{
  color: var(--color-cambridge-blue);
}

.nav-text {
  font-family: var(--font-raleway);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.5;
}

.button-text {
  font-family: var(--font-raleway);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

body {
  background-color: var(--color-bg-light);
  color: var(--color-text-primary); /* fallback for body text */
  font-family: var(--font-raleway);
  font-size: var(--font-size-base);
  line-height: 1.6;
}
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1; /* this pushes the footer to the bottom */
}

.content-wrapper {
  max-width: 1440px;
  width: 100%;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  margin-left: auto;
  margin-right: auto;
}

footer {
  background-color: #ffffff; /* or var(--color-bg-light) */
  color: var(--color-text-primary);
  text-align: left;
  padding: var(--space-md) var(--space-xs);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-regular);
}

.connect a {
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.3s ease, text-decoration 0.3s ease;
}

.connect a:hover {
  color: var(--color-cambridge-blue);
  text-decoration: underline;
}

.topbar {
  padding: var(--space-xs) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo {
  height: 36px;
  width: 36px;
}

.logo-link {
  display: inline-flex;
  align-items: center;
}

.case-study-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Optional: pad the section more on large screens */
.case-studies {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
}

/* Card container */
.case-study {
  display: flex;
  flex-direction: column;
  text-align: left;
}

/* Images: responsive & constrained */
.case-study img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3; /* optional crop */
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  margin-bottom: var(--space-sm);
}