@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* =============================================
   CSS Custom Properties
   ============================================= */
:root {
  --color-primary:    #1B3A5C;
  --color-secondary:  #2D6A4F;
  --color-accent:     #74C69D;
  --color-bg:         #F8F5F0;
  --color-text:       #2C2C2C;
  --color-light-gray: #E8E4DF;
  --color-mid-gray:   #9E9E9E;
  --color-brown:      #8B5E3C;
  --color-white:      #FFFFFF;

  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', system-ui, -apple-system, Arial, sans-serif;

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

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
  --shadow-md: 0 2px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 4px 24px rgba(0,0,0,.12);

  --transition:      200ms ease;
  --transition-slow: 300ms ease;

  --max-width: 1200px;
  --nav-height: 72px;
}

/* =============================================
   Reset
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  min-height: 100vh;
  padding-top: var(--nav-height);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-secondary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-primary);
}
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
@media (min-width: 768px) { h1 { font-size: var(--text-5xl); } }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* =============================================
   Layout
   ============================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (max-width: 640px) { .container { padding: 0 1rem; } }

.section        { padding: 4rem 0; }
.section--gray  { background-color: var(--color-light-gray); }
.section--dark  { background-color: var(--color-primary); color: var(--color-white); }
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--color-white); }

.section-header { margin-bottom: 2.5rem; }
.section-title  { font-size: var(--text-3xl); color: var(--color-primary); margin-bottom: .5rem; }
.section-subtitle { color: var(--color-mid-gray); font-size: var(--text-lg); }

.grid-2 { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 640px)  { .grid-3 { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .grid-2 { grid-template-columns: repeat(2,1fr); } .grid-3 { grid-template-columns: repeat(3,1fr); } }

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

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  line-height: 1;
}
.btn--primary       { background: var(--color-secondary); color: #fff; border-color: var(--color-secondary); }
.btn--primary:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary); }
.btn--outline       { background: transparent; color: var(--color-secondary); border-color: var(--color-secondary); }
.btn--outline:hover { background: var(--color-secondary); color: #fff; }
.btn--white         { background: #fff; color: var(--color-primary); border-color: #fff; }
.btn--white:hover   { background: var(--color-accent); border-color: var(--color-accent); }
.btn--outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn--outline-white:hover { background: rgba(255,255,255,.15); border-color: #fff; }

/* =============================================
   Page Hero
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");
}
.page-hero > * { position: relative; }
.page-hero h1  { color: #fff; margin-bottom: 1rem; }
.page-hero p   { color: rgba(255,255,255,.85); font-size: var(--text-lg); max-width: 620px; margin: 0 auto; }

/* =============================================
   Breadcrumb
   ============================================= */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 0;
  font-size: var(--text-sm);
  color: var(--color-mid-gray);
}
.breadcrumb a { color: var(--color-mid-gray); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb__sep { opacity: .5; }

/* =============================================
   Article / Content prose
   ============================================= */
.prose h2 { margin: 2rem 0 .75rem; }
.prose h3 { margin: 1.5rem 0 .5rem; color: var(--color-secondary); }
.prose ul  { list-style: disc; padding-left: 1.5rem; margin-bottom: 1rem; }
.prose ol  { list-style: decimal; padding-left: 1.5rem; margin-bottom: 1rem; }
.prose li  { margin-bottom: .25rem; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: var(--text-sm); }
.prose th  { background: var(--color-primary); color: #fff; padding: .75rem 1rem; text-align: left; font-family: var(--font-body); font-weight: 600; }
.prose td  { padding: .625rem 1rem; border-bottom: 1px solid var(--color-light-gray); }
.prose tr:hover td { background: rgba(116,198,157,.08); }

/* =============================================
   Misc Utilities
   ============================================= */
.tag {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.divider { height: 1px; background: var(--color-light-gray); margin: 2rem 0; }