@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Thin.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Thin.otf") format("opentype");
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Light.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Light.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Regular.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Medium.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Medium.otf") format("opentype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-DemiBold.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-DemiBold.otf") format("opentype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Bold.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-ExtraBold.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-ExtraBold.otf") format("opentype");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Visby CF";
  src: url("../assets/fonts/webfonts/VisbyCF-Heavy.woff2") format("woff2"),
       url("../assets/fonts/visby-cf/VisbyCF-Heavy.otf") format("opentype");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Extracted directly from assets/images brand mark files */
  --color-primary: #f3e34c;      /* brand yellow */
  --color-primary-dark: #c7ba3e; /* darkened yellow, for hover states */
  --color-secondary: #222222;    /* brand black */
  --color-text: #222222;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f3f4f6;
  --color-border: #e5e7eb;
  /* Semantic status colors (form feedback) — not part of the brand palette */
  --color-success: #15803d;
  --color-success-bg: #f0fdf4;
  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;
  --max-width: 1100px;
}

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

body {
  font-family: "Visby CF", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header / Nav */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

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

.logo-img {
  height: 32px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-text-light);
  padding-bottom: 4px;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-secondary);
  box-shadow: inset 0 -2px 0 var(--color-primary);
}

/* Hero */
.hero {
  background: var(--color-bg-alt);
  padding: 5rem 1.5rem;
  text-align: center;
}

.hero-content {
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

/* Features */
.features {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.feature-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.feature-card h2 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
}

.feature-card p {
  color: var(--color-text-light);
}

.feature-card-cta {
  background: var(--color-bg-alt);
  border-style: dashed;
  border-color: var(--color-primary);
}

/* Page header (about/ecosystems/how-we-build/innovation/partner/contact) */
.page-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 1rem;
}

.page-header h1 {
  font-size: 2rem;
}

/* Content block */
.content-block {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
}

.content-block p {
  margin-bottom: 1rem;
}

.content-block h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.content-block h2 {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  border-bottom: 3px solid var(--color-primary);
  display: inline-block;
  padding-bottom: 0.15rem;
  scroll-margin-top: 90px;
}

.content-block ul {
  margin-left: 1.25rem;
  margin-bottom: 1rem;
}

.content-block li {
  margin-bottom: 0.25rem;
}

.invite-block {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  border-radius: 8px;
  padding: 1.75rem 2rem;
  margin: 2rem 0;
}

.invite-block h2 {
  margin-top: 0;
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 500px;
  margin: 2rem 0;
}

.contact-form label {
  font-weight: 600;
  margin-top: 0.75rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  border-color: var(--color-primary);
}

.contact-form button {
  margin-top: 1.5rem;
  align-self: flex-start;
}

.contact-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-weight: 600;
}

.form-status[hidden] {
  display: none;
}

.form-status-success {
  color: var(--color-success);
  background: var(--color-success-bg);
  border: 1px solid var(--color-success);
}

.form-status-error {
  color: var(--color-error);
  background: var(--color-error-bg);
  border: 1px solid var(--color-error);
}

.contact-info {
  margin-top: 2rem;
  color: var(--color-text-light);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 1.5rem;
  color: var(--color-text-light);
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo {
  height: 24px;
  width: auto;
}

@media (max-width: 640px) {
  .navbar {
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero h1 {
    font-size: 1.85rem;
  }
}