/* ============================================================
   David Lee Williamson — Global Stylesheet
   Used across all pages via navbar.php / footer.php includes
   ============================================================ */

/* ---- CSS Custom Properties ---- */
:root {
  --clr-primary:      #0d3a4a;   /* deep teal navy */
  --clr-primary-mid:  #165f72;   /* medium teal */
  --clr-primary-lite: #d4eef5;   /* pale teal tint */
  --clr-accent:       #c9a227;   /* gold */
  --clr-accent-lite:  #f2e0a0;   /* light gold */
  --clr-bg:           #ffffff;
  --clr-bg-soft:      #f6f9fb;
  --clr-bg-dark:      #0a2d3a;
  --clr-text:         #1a1a2e;
  --clr-text-mid:     #4a5568;
  --clr-text-lite:    #718096;
  --clr-border:       #e2e8f0;
  --clr-white:        #ffffff;

  --ff-heading: 'Playfair Display', Georgia, serif;
  --ff-body:    'Inter', system-ui, -apple-system, sans-serif;

  --fw-light:   300;
  --fw-regular: 400;
  --fw-medium:  500;
  --fw-semi:    600;
  --fw-bold:    700;

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  1.875rem;
  --fs-3xl:  2.25rem;
  --fs-4xl:  3rem;
  --fs-5xl:  3.75rem;

  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1.25rem;
  --radius-xl:  2rem;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.14), 0 4px 12px rgba(0,0,0,.08);
  --shadow-xl:  0 20px 60px rgba(0,0,0,.18);

  --transition: 0.25s ease;
  --nav-h:  70px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: var(--clr-primary);
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-nav.scrolled {
  background: rgba(13,58,74,.97);
  backdrop-filter: blur(12px);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  flex-shrink: 0;
}
.logo-name {
  font-family: var(--ff-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--clr-white);
  letter-spacing: 0.01em;
}
.logo-tagline {
  font-size: var(--fs-xs);
  color: var(--clr-accent);
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-menu {
  display: flex;
  align-items: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  padding: 0.45rem 0.85rem;
  color: rgba(255,255,255,.85);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--clr-white);
  background: rgba(255,255,255,.1);
}
.nav-cta { margin-left: 0.5rem; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: 0.04em;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-primary);
  border-color: var(--clr-accent);
}
.btn-primary:hover {
  background: #b8911e;
  border-color: #b8911e;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(201,162,39,.4);
}
.btn-secondary {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,.6);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--clr-white);
}
.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}
.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
}
.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--fs-md);
}
.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: var(--fs-xs);
}
.btn-full { width: 100%; }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.container-narrow {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-lg { padding: 7rem 0; }
.section-bg { background: var(--clr-bg-soft); }
.section-dark { background: var(--clr-primary); color: var(--clr-white); }

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--ff-heading);
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  font-weight: var(--fw-bold);
  line-height: 1.2;
  color: var(--clr-primary);
  margin-bottom: 1rem;
}
.section-dark .section-title { color: var(--clr-white); }
.section-subtitle {
  font-size: var(--fs-md);
  color: var(--clr-text-mid);
  max-width: 600px;
  margin-bottom: 2.5rem;
}
.section-dark .section-subtitle { color: rgba(255,255,255,.75); }
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

.divider {
  width: 60px;
  height: 4px;
  background: var(--clr-accent);
  border-radius: 2px;
  margin: 1.25rem 0 2rem;
}
.text-center .divider { margin-left: auto; margin-right: auto; }

/* Grid helpers */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.flex { display: flex; }
.flex-center { justify-content: center; align-items: center; }
.gap-1 { gap: 1rem; }
.gap-2 { gap: 2rem; }

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: 1.5rem; }
.card-title {
  font-family: var(--ff-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--clr-primary);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.card-text {
  font-size: var(--fs-sm);
  color: var(--clr-text-mid);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--clr-bg-dark);
  color: rgba(255,255,255,.8);
  padding-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-name { color: var(--clr-white); font-size: var(--fs-xl); }
.footer-brand p {
  margin-top: 0.75rem;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.6);
  line-height: 1.6;
}
.footer-contact-info {
  margin-top: 1rem;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.7);
}
.footer-contact-info p { margin-bottom: 0.35rem; }
.footer-contact-info a { color: var(--clr-accent); }
.footer-contact-info a:hover { color: var(--clr-accent-lite); }

.footer-heading {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semi);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1rem;
}
.footer-links li + li { margin-top: 0.5rem; }
.footer-links a {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--clr-white); }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,.08);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.8);
  font-weight: var(--fw-medium);
  transition: background var(--transition), color var(--transition);
}
.social-btn:hover { background: var(--clr-accent); color: var(--clr-primary); }

.footer-bottom {
  padding: 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--clr-accent); }
.footer-legal { display: flex; gap: 1.25rem; flex-wrap: wrap; }

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--clr-text);
  margin-bottom: 0.4rem;
}
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: var(--fs-base);
  font-family: inherit;
  color: var(--clr-text);
  background: var(--clr-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--clr-primary-mid);
  box-shadow: 0 0 0 3px rgba(22,95,114,.15);
}
textarea.form-control { resize: vertical; min-height: 120px; }

/* ============================================================
   MOBILE RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--clr-primary);
    padding: 1rem 1.25rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,.1);
    box-shadow: var(--shadow-lg);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-links { flex-direction: column; align-items: flex-start; width: 100%; gap: 0.25rem; }
  .nav-cta { margin-left: 0; margin-top: 0.75rem; width: 100%; }
  .nav-cta .btn { width: 100%; justify-content: center; }

  .section { padding: 3.5rem 0; }
  .section-lg { padding: 4.5rem 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .btn-lg { padding: 0.85rem 1.5rem; font-size: var(--fs-base); }
  .section-title { font-size: var(--fs-2xl); }
}