/* Psi Rho Zeta Chapter — base styles
   Palette: royal blue + white (Zeta Phi Beta colors), swap in exact hex once confirmed with client */

:root {
  --color-primary: #003087;
  --color-primary-dark: #001f5c;
  --color-white: #ffffff;
  --color-offwhite: #f5f6fa;
  --color-text: #1c1c1c;
  --color-muted: #5a5a5a;
  --max-width: 1100px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  line-height: 1.6;
  background: var(--color-white);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background: var(--color-primary);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.brand {
  color: var(--color-white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-white);
  text-decoration: none;
  font-size: 0.95rem;
}

.main-nav a:hover {
  text-decoration: underline;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2.5rem;
}

.tagline {
  font-size: 1.1rem;
  margin: 0 0 0.25rem;
  opacity: 0.9;
}

.mission-preview {
  font-style: italic;
  opacity: 0.85;
}

/* Sections */
.section {
  padding: 3rem 0;
}

.section h2 {
  color: var(--color-primary);
  margin-top: 0;
}

.alt-bg {
  background: var(--color-offwhite);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.highlight-card {
  background: var(--color-white);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.5rem;
}

.highlight-card h3 {
  margin-top: 0;
  color: var(--color-primary);
}

.highlight-card a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

/* Leadership cards */
.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.leadership-card {
  text-align: center;
}

.leadership-card img {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1rem;
  background: var(--color-offwhite);
  border: 3px solid var(--color-primary);
}

.leadership-card h3 {
  margin: 0.25rem 0;
  color: var(--color-primary);
}

.leadership-card .role {
  font-weight: 600;
  color: var(--color-muted);
  margin: 0 0 0.5rem;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--color-offwhite);
}

/* Forms */
form {
  max-width: 500px;
  margin-top: 1.5rem;
}

form label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

form input,
form textarea {
  width: 100%;
  padding: 0.6rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

form button {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
}

form button:hover {
  background: var(--color-primary-dark);
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-white);
  text-align: center;
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer-note {
  opacity: 0.7;
  font-size: 0.85rem;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .main-nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: 1rem 1.5rem;
  }

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