/* ==========================================================================
   MapTheNet.org - Public Website Stylesheet
   Classic non-profit aesthetic: serif headings, clean body, earth tones
   ========================================================================== */

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

:root {
  --color-navy: #2c3e50;
  --color-slate: #34495e;
  --color-light-gray: #ecf0f1;
  --color-accent: #3498db;
  --color-alert: #e74c3c;
  --color-off-white: #f9f9f9;
  --color-white: #ffffff;
  --color-border: #dcdde1;
  --color-text: #333333;
  --color-text-light: #666666;
  --font-heading: Georgia, "Times New Roman", Times, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --max-width: 960px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-off-white);
  line-height: 1.7;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1rem;
}

/* --- Navigation --- */
.site-nav {
  background-color: var(--color-navy);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0;
  padding-bottom: 0;
}

.site-nav__brand {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: bold;
  text-decoration: none;
  padding: 0.85rem 0;
  white-space: nowrap;
}

.site-nav__brand:hover {
  text-decoration: none;
  opacity: 0.9;
}

.site-nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

.site-nav__links {
  list-style: none;
  display: flex;
  gap: 0.25rem;
}

.site-nav__links a {
  color: var(--color-light-gray);
  padding: 0.85rem 0.75rem;
  display: block;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

.site-nav__links a:hover,
.site-nav__links a.active {
  background-color: var(--color-slate);
  color: var(--color-white);
  text-decoration: none;
}

/* --- Hero --- */
.hero {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 4rem 0 3.5rem;
  text-align: center;
}

.hero h1 {
  color: var(--color-white);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-light-gray);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 1.5rem;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.65rem 1.75rem;
  border-radius: 3px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color 0.2s, opacity 0.2s;
}

.btn:hover {
  text-decoration: none;
  opacity: 0.9;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-secondary {
  background-color: var(--color-slate);
  color: var(--color-white);
}

.btn-alert {
  background-color: var(--color-alert);
  color: var(--color-white);
}

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

.section--alt {
  background-color: var(--color-white);
}

.section--light {
  background-color: var(--color-light-gray);
}

.section__title {
  text-align: center;
  margin-bottom: 2rem;
}

.section__title h2 {
  margin-bottom: 0.5rem;
}

.section__title p {
  color: var(--color-text-light);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Stats Counters --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2rem 1rem;
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.25rem;
}

.stat-card__label {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* --- Content Blocks --- */
.content-block {
  margin-bottom: 2.5rem;
}

.content-block h3 {
  border-bottom: 2px solid var(--color-light-gray);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

/* --- Tables --- */
.table-wrap {
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

thead {
  background-color: var(--color-navy);
  color: var(--color-white);
}

th, td {
  padding: 0.7rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

tbody tr:nth-child(even) {
  background-color: var(--color-light-gray);
}

tbody tr:hover {
  background-color: #dfe6e9;
}

/* --- Forms --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-navy);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="url"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-size: 1rem;
  font-family: var(--font-body);
  background-color: var(--color-white);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2rem;
  max-width: 560px;
}

/* --- Info Boxes --- */
.info-box {
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-white);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 0 4px 4px 0;
}

.info-box--alert {
  border-left-color: var(--color-alert);
}

.info-box h4 {
  margin-bottom: 0.5rem;
}

/* --- Cards Grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.5rem;
}

.card h3 {
  border-bottom: none;
  padding-bottom: 0;
  font-size: 1.2rem;
}

/* --- Chart Containers --- */
.chart-container {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.chart-container h3 {
  border-bottom: none;
  margin-bottom: 1rem;
  text-align: center;
}

.chart-container canvas {
  max-height: 400px;
}

/* --- Download List --- */
.download-list {
  list-style: none;
}

.download-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.download-item__info {
  flex: 1;
}

.download-item__info h3 {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.download-item__info p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- Code / Pre --- */
code {
  background-color: var(--color-light-gray);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.9em;
}

pre {
  background-color: var(--color-navy);
  color: var(--color-light-gray);
  padding: 1.25rem;
  border-radius: 4px;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
}

/* --- Two Column Layout --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-light-gray);
  padding: 2.5rem 0 1.5rem;
  margin-top: 2rem;
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--color-accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-grid h4 {
  color: var(--color-white);
  font-family: var(--font-heading);
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.footer-grid ul {
  list-style: none;
}

.footer-grid li {
  margin-bottom: 0.35rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-slate);
  padding-top: 1rem;
  text-align: center;
  color: #95a5a6;
  font-size: 0.85rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

  .hero { padding: 2.5rem 0 2rem; }
  .hero h1 { font-size: 1.85rem; }
  .hero p { font-size: 1rem; }

  .site-nav__toggle {
    display: block;
  }

  .site-nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-navy);
    border-top: 1px solid var(--color-slate);
  }

  .site-nav__links.open {
    display: flex;
  }

  .site-nav__links a {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--color-slate);
  }

  .site-nav .container {
    position: relative;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .download-item {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .section { padding: 2rem 0; }
  .stat-card { padding: 1.25rem 0.75rem; }
  .stat-card__number { font-size: 2rem; }
}