/* CSS Variables for Light, Bright, Calm, Sublime aesthetic */
:root {
  --color-bg: #FAFCFC;            /* Very light pristine off-white/ice tinted background */
  --color-card-bg: #FFFFFF;       /* Crisp white cards */
  --color-text-main: #2C3E42;     /* Dark slate teal, gentle on eyes, highly legible */
  --color-text-muted: #5B7277;    /* Soft slate gray/teal for body secondary */
  --color-text-light: #7E979D;    /* Muted accent gray */
  --color-primary: #2B5B5C;       /* Deep calm forest-teal accent */
  --color-primary-hover: #1E4344; /* Darker teal hover */
  --color-accent-soft: #E8F2F4;   /* Very soft lake teal wash */
  --color-accent-border: #D5E5E8; /* Light water border */
  --color-border: #E5EFF1;        /* Subtle divider border */
  --color-focus: #12636E;         /* Visible focus ring */

  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --max-width: 760px;
  --max-width-wide: 1040px;
  --border-radius: 8px;
  --transition: all 0.2s ease-in-out;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%; /* 16px default */
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 1.125rem; /* 18px base font size as per spec NFR */
  letter-spacing: 0.01em;
  background-color: var(--color-bg);
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-primary);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  z-index: 100;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 500;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* Header & Navigation */
.site-header {
  background-color: rgba(250, 252, 252, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1.25rem 1.5rem;
}

.header-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text-main);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-title span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-accent-border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-main);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

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

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.975rem;
  font-weight: 400;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Main Container */
main {
  flex: 1;
  width: 100%;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.container-wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-image-wrapper {
  margin: 0 0 2.5rem;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--color-accent-border);
  box-shadow: 0 10px 30px -10px rgba(43, 91, 92, 0.08);
}

.hero-image {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
  display: block;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  line-height: 1.3;
  color: var(--color-text-main);
  font-weight: 400;
  margin-bottom: 1.25rem;
}

.hero-subhead {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
  font-weight: 400;
}

/* Typography & Content Elements */
h1 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: var(--color-text-main);
}

h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.35;
  margin: 2.5rem 0 1rem;
  color: var(--color-text-main);
}

h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--color-text-main);
}

p {
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
  max-width: 70ch; /* 60-75 chars line length for readability */
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--color-text-muted);
}

li {
  margin-bottom: 0.5rem;
}

/* Buttons & CTA */
.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  min-height: 48px; /* Target >= 44px for tap area */
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid var(--color-primary);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-accent-border);
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--color-accent-soft);
  border-color: var(--color-primary);
}

/* Cards & Grid Layouts */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 1.75rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--color-accent-border);
  box-shadow: 0 6px 20px rgba(43, 91, 92, 0.06);
}

.card h3 {
  margin-top: 0;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 1.25rem;
}

.card p {
  margin-bottom: 0;
  font-size: 1rem;
}

/* Testimonial Quote Card */
.quote-card {
  background-color: var(--color-accent-soft);
  border-left: 3px solid var(--color-primary);
  padding: 1.5rem;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  margin: 1.75rem 0;
}

.quote-card blockquote {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-text-main);
  margin-bottom: 0.75rem;
}

.quote-card cite {
  font-style: normal;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: block;
  font-weight: 500;
}

/* Highlight Box / Callout */
.callout-box {
  background-color: #F3F8F9;
  border: 1px solid var(--color-accent-border);
  border-radius: var(--border-radius);
  padding: 1.75rem;
  margin: 2rem 0;
}

/* Contact Links List */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
}

.contact-item strong {
  min-width: 100px;
  color: var(--color-text-main);
}

.contact-item a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

.copy-btn {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-border);
  color: var(--color-primary);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  font-size: 0.875rem;
  cursor: pointer;
  margin-left: auto;
  transition: var(--transition);
  min-height: 44px;
}

.copy-btn:hover {
  background: var(--color-accent-border);
}

/* Footer */
.site-footer {
  background-color: #F2F7F8;
  border-top: 1px solid var(--color-border);
  padding: 3rem 1.5rem 2rem;
  margin-top: auto;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.footer-container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-accent-border);
}

.back-to-top {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.9rem;
}

.back-to-top:hover {
  text-decoration: underline;
}

/* Focus States for Accessibility */
a:focus, button:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

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

  .site-nav {
    display: none;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0.75rem;
  }

  .site-nav a {
    display: block;
    padding: 0.5rem 0;
  }

  .hero-headline {
    font-size: 1.75rem;
  }

  h1 {
    font-size: 1.85rem;
  }

  .cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .copy-btn {
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

/* Print Stylesheet (FR-13 requirement for Working Together & Boundaries) */
@media print {
  body {
    background: #ffffff;
    color: #000000;
    font-size: 12pt;
    line-height: 1.5;
  }

  .site-header, .site-footer, .cta-group, .nav-toggle, .skip-link, .copy-btn {
    display: none !important;
  }

  .container, .container-wide {
    padding: 0;
    max-width: 100%;
  }

  a {
    text-decoration: none;
    color: #000000;
  }

  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 90%;
  }

  .card, .callout-box, .quote-card {
    border: 1px solid #ccc;
    box-shadow: none;
    page-break-inside: avoid;
  }
}