/* ====================================================================
   Loudoun Robotics — Shared Stylesheet
   Used by every page. Page-specific styles go inline in each page.
   ==================================================================== */

:root {
  --brand-magenta: #d10165;
  --brand-magenta-dark: #a8014f;
  --brand-magenta-soft: #fce4ec;
  --navy: #1a2b4a;
  --navy-light: #2c4368;
  --gold: #f4b81f;
  --gold-dark: #d49d0a;
  --cream: #faf7f2;
  --white: #ffffff;
  --charcoal: #2a2a2a;
  --gray-text: #6b6b6b;
  --gray-light: #e8e8e8;
  --gray-bg: #f4f2ee;
}

/* Reset + base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--charcoal);
  background: var(--cream);
  line-height: 1.6;
  font-size: 16px;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 700; margin-bottom: 16px; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p { margin-bottom: 16px; }
a { color: var(--brand-magenta); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--brand-magenta-dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* =======================
   Header
   ======================= */
header.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1200px; margin: 0 auto;
}
.logo-block { display: flex; align-items: center; gap: 12px; }
.logo-block, .logo-block:hover { color: inherit; text-decoration: none; }
.logo-mark { width: 44px; height: 44px; }
.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; font-size: 1.15rem;
  color: var(--navy); letter-spacing: 0.02em;
}
.logo-text span { color: var(--brand-magenta); }
nav.main-nav ul { display: flex; gap: 28px; list-style: none; }
nav.main-nav a {
  color: var(--charcoal); font-weight: 500; font-size: 0.95rem;
}
nav.main-nav a:hover, nav.main-nav a.active { color: var(--brand-magenta); }
.header-cta {
  background: var(--brand-magenta); color: var(--white);
  padding: 10px 22px; border-radius: 6px; font-weight: 600;
  transition: background 0.2s;
}
.header-cta:hover { background: var(--brand-magenta-dark); color: var(--white); }
/* Hamburger menu button (mobile only) */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  nav.main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-light);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    padding: 16px 0;
  }
  nav.main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0 24px;
  }
  nav.main-nav ul li {
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-light);
  }
  nav.main-nav ul li:last-child { border-bottom: none; }
  nav.main-nav a { display: block; font-size: 1.05rem; }

  body.menu-open nav.main-nav { display: block; }

  body.menu-open .hamburger span:nth-child(1) { transform: rotate(45deg) translate(4px, 5px); }
  body.menu-open .hamburger span:nth-child(2) { opacity: 0; }
  body.menu-open .hamburger span:nth-child(3) { transform: rotate(-45deg) translate(4px, -5px); }
}

/* =======================
   Generic page hero
   ======================= */
.page-hero {
  background: linear-gradient(135deg, var(--cream) 0%, var(--brand-magenta-soft) 100%);
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(209,1,101,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .eyebrow {
  display: inline-block;
  background: var(--brand-magenta);
  color: var(--white);
  padding: 6px 14px; border-radius: 20px;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 20px;
}
.page-hero h1 { margin-bottom: 16px; max-width: 780px; margin-left: auto; margin-right: auto; }
.page-hero h1 em { color: var(--brand-magenta); font-style: normal; }
.page-hero p.lead {
  font-size: 1.15rem; color: var(--gray-text);
  max-width: 680px; margin: 0 auto;
}

/* =======================
   Section building blocks
   ======================= */
section.block { padding: 56px 0; }
.section-eyebrow {
  display: inline-block;
  color: var(--brand-magenta); font-weight: 700;
  font-size: 0.78rem; letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 12px;
}
.section-title { margin-bottom: 16px; }
.section-intro {
  color: var(--gray-text); font-size: 1.08rem;
  max-width: 720px; margin-bottom: 40px;
}
/* Kill trailing margin when section-intro is the last element in its container
   — the section's own bottom padding already provides breathing room. */
.section-intro:last-child { margin-bottom: 0; }

/* =======================
   Buttons
   ======================= */
.btn {
  display: inline-block; padding: 14px 28px;
  border-radius: 6px; font-weight: 600;
  font-size: 1rem; transition: all 0.2s; border: 2px solid transparent;
  cursor: pointer; font-family: inherit;
}
.btn-primary {
  background: var(--gold); color: var(--navy);
  box-shadow: 0 4px 14px rgba(244,184,31,0.4);
}
.btn-primary:hover { background: var(--gold-dark); color: var(--navy); transform: translateY(-2px); }
.btn-secondary {
  background: transparent; color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover { background: var(--navy); color: var(--white); }
.btn-magenta {
  background: var(--brand-magenta); color: var(--white);
  box-shadow: 0 4px 14px rgba(209,1,101,0.3);
}
.btn-magenta:hover { background: var(--brand-magenta-dark); color: var(--white); transform: translateY(-2px); }

/* =======================
   Cards (shared patterns)
   ======================= */
.card {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--gray-light);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(26,43,74,0.08);
  border-color: var(--brand-magenta);
}
.card h3 { margin-bottom: 10px; }
.card p { color: var(--gray-text); margin-bottom: 16px; font-size: 0.97rem; }
.card .age, .card .tag {
  font-size: 0.85rem; color: var(--brand-magenta);
  font-weight: 700; margin-bottom: 8px;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.card-icon {
  width: 56px; height: 56px;
  background: var(--brand-magenta-soft);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  color: var(--brand-magenta);
  font-weight: 700; font-size: 1.05rem;
  font-family: 'Space Grotesk', sans-serif;
}
.card .learn-more {
  font-weight: 600; font-size: 0.95rem;
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand-magenta);
}
.card .learn-more:hover { color: var(--brand-magenta-dark); }

/* Stat card */
.stat-card {
  background: var(--white);
  padding: 32px; border-radius: 12px;
  text-align: center;
  border: 1px solid var(--gray-light);
}
.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem; font-weight: 700;
  color: var(--brand-magenta); line-height: 1;
  margin-bottom: 8px;
}
.stat-label { color: var(--charcoal); font-weight: 500; }

/* =======================
   Grids
   ======================= */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* =======================
   Forms
   ======================= */
.form-card {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--gray-light);
  padding: 36px;
  max-width: 720px;
  margin: 0 auto;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-weight: 600;
  font-size: 0.9rem; margin-bottom: 6px;
  color: var(--charcoal);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-light);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.98rem;
  background: var(--white);
  transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--brand-magenta);
  box-shadow: 0 0 0 3px rgba(209,1,101,0.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) {
  .form-row-2 { grid-template-columns: 1fr; }
}
.form-help { font-size: 0.85rem; color: var(--gray-text); margin-top: 4px; }

/* =======================
   CTA band
   ======================= */
.cta-band {
  background: var(--navy);
  color: var(--white);
  padding: 60px 0;
  text-align: center;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.85); max-width: 640px; margin: 0 auto 28px; }
.cta-band .btn-secondary { border-color: var(--white); color: var(--white); }
.cta-band .btn-secondary:hover { background: var(--white); color: var(--navy); }

/* =======================
   Footer
   ======================= */
footer.site-footer {
  background: #0f1a2e;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 40px;
}
.footer-col h5 {
  color: var(--white); font-size: 0.85rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 18px; font-weight: 700;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 0.95rem; }
.footer-col a:hover { color: var(--brand-magenta); }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand .logo-mark { width: 36px; height: 36px; }
.footer-brand strong { color: var(--white); font-family: 'Space Grotesk', sans-serif; font-size: 1.05rem; }
.footer-tagline { color: rgba(255,255,255,0.6); font-size: 0.9rem; max-width: 280px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 0.85rem; color: rgba(255,255,255,0.5);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--brand-magenta); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* =======================
   Utility
   ======================= */
.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}