/*
 * Stylesheet for the CBC News reader front‑end.
 *
 * The design adopts a minimalist layout with a hint of solarpunk
 * aesthetics: soft greens, rounded corners and gentle shadows.  It
 * respects the user’s colour scheme preference via the CSS media
 * query ``prefers-color-scheme``.
 */

/* Root variables for light mode */
:root {
  --bg: #ffffff;
  --fg: #222222;
  --accent: #2f8f56; /* muted green */
  --accent-light: #d9f2e5;
  --card-bg: #f9f9f9;
  --card-shadow: rgba(0, 0, 0, 0.1);
}

/* Dark mode overrides */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141d16;
    --fg: #e0e0e0;
    --accent: #8fd8a0;
    --accent-light: #24422d;
    --card-bg: #1d2a23;
    --card-shadow: rgba(0, 0, 0, 0.5);
  }
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

header {
  background-color: var(--accent);
  color: #fff;
  padding: 1rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.05rem;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
}

#filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

#filters select,
#filters input[type="text"],
#filters label {
  padding: 0.5rem;
  font-size: 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 0.4rem;
  background-color: var(--card-bg);
  color: var(--fg);
}

#filters label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

#newsList {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
  background-color: var(--card-bg);
  border-radius: 0.5rem;
  padding: 1rem;
  box-shadow: 0 2px 6px var(--card-shadow);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.card:hover {
  transform: translateY(-2px);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
  color: var(--accent);
}

.card .meta {
  font-size: 0.8rem;
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.chip {
  padding: 0.2rem 0.5rem;
  border-radius: 1rem;
  font-size: 0.7rem;
  background-color: var(--accent-light);
  color: var(--accent);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal.show {
  visibility: visible;
  opacity: 1;
}

.modal-content {
  background-color: var(--bg);
  color: var(--fg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 4px 8px var(--card-shadow);
  position: relative;
}

.modal-content h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.modal-content a {
  color: var(--accent);
  text-decoration: underline;
}

.close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--accent);
}