*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: #0f1117;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 3rem 1rem;
}

main {
  max-width: 1100px;
  width: 100%;
}

header {
  text-align: center;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.tagline {
  margin-top: 0.4rem;
  color: #888;
  font-size: 1rem;
}

/* Beta notice */
.beta-notice {
  text-align: center;
  color: #cca350;
  background: #1a1810;
  border: 1px solid #3d3520;
  border-radius: 6px;
  padding: 0.6rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  line-height: 1.5;
}

.beta-notice strong {
  color: #e0b860;
}

.beta-notice a {
  color: #5a9eff;
  text-decoration: none;
}

.beta-notice a:hover {
  color: #82b5ff;
  text-decoration: underline;
}

/* YouTube banner */
.yt-banner {
  display: block;
  text-align: center;
  text-decoration: none;
  color: #ccc;
  background: #1a1d27;
  border: 1px solid #2a2d37;
  border-radius: 6px;
  padding: 0.6rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  transition: border-color 0.15s, background 0.15s;
}

.yt-banner:hover {
  border-color: #cc0000;
  background: #1e2230;
  color: #fff;
}

.yt-banner strong {
  color: #fff;
}

.yt-icon {
  color: #cc0000;
  margin-right: 0.4rem;
}

/* Hero screenshot */
.hero {
  margin-bottom: 1.5rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #2a2d37;
}

.hero img {
  width: 100%;
  height: auto;
  display: block;
}

/* Hero description */
.hero-description {
  text-align: center;
  color: #aaa;
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 auto 2rem;
}

/* Version / date */
.version-line {
  text-align: center;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}

.badge {
  display: inline-block;
  background: #1a6eff;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
}

.badge.pre {
  background: #b35e00;
}

.date {
  color: #888;
  font-size: 0.85rem;
}

.release-notes-link {
  color: #5a9eff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
}

.release-notes-link:hover {
  color: #82b5ff;
  text-decoration: underline;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: #e0e0e0;
  background: #1a1d27;
  border: 1px solid #2a2d37;
  border-radius: 8px;
  padding: 1.5rem 1rem;
  transition: border-color 0.15s, background 0.15s;
}

.card:hover {
  border-color: #1a6eff;
  background: #1e2230;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  opacity: 0.7;
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.4rem;
}

.filename {
  font-size: 0.75rem;
  color: #666;
  word-break: break-all;
  text-align: center;
}

.filesize {
  font-size: 0.8rem;
  color: #888;
  margin: 0.3rem 0 0.8rem;
}

.btn {
  display: inline-block;
  background: #1a6eff;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  border-radius: 5px;
  transition: background 0.15s;
}

.card:hover .btn {
  background: #3d85ff;
}

.hash {
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 0.65rem;
  color: #555;
  margin-top: 0.6rem;
  cursor: default;
  word-break: break-all;
}

/* Info panels */
.info-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.panel {
  background: #1a1d27;
  border: 1px solid #2a2d37;
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.panel h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.75rem;
}

.panel h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ccc;
  margin-top: 1rem;
  margin-bottom: 0.4rem;
}

.panel p {
  font-size: 0.85rem;
  color: #aaa;
  line-height: 1.55;
}

/* Links list */
.link-list {
  list-style: none;
  padding: 0;
}

.link-list li {
  margin-bottom: 0.3rem;
}

.link-list a {
  color: #5a9eff;
  text-decoration: none;
  font-size: 0.85rem;
}

.link-list a:hover {
  color: #82b5ff;
  text-decoration: underline;
}

/* Requirements table */
.req-table {
  width: 100%;
  border-collapse: collapse;
}

.req-table td {
  padding: 0.5rem 0;
  font-size: 0.85rem;
  color: #ccc;
  vertical-align: top;
  border-bottom: 1px solid #22252f;
}

.req-table tr:last-child td {
  border-bottom: none;
}

.req-platform {
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  padding-right: 1rem;
  min-width: 5.5rem;
  width: 1%;
}

.req-detail {
  color: #777;
  font-size: 0.8rem;
}

.req-detail a {
  color: #5a9eff;
  text-decoration: none;
}

.req-detail a:hover {
  color: #82b5ff;
  text-decoration: underline;
}

.req-table code {
  background: #22252f;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.8rem;
  color: #ddd;
}

/* Loading / error */
.loading,
.error {
  text-align: center;
  color: #888;
  padding: 3rem 0;
}

.error {
  color: #cc6666;
}

/* Development & Feedback section */
.dev-section {
  background: #1a1d27;
  border: 1px solid #2a2d37;
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin-top: 2rem;
  text-align: center;
}

.dev-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.6rem;
}

.dev-section p {
  font-size: 0.85rem;
  color: #aaa;
  line-height: 1.55;
  max-width: 600px;
  margin: 0 auto 1rem;
}

.issues-link {
  display: inline-block;
  color: #fff;
  background: #1a6eff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.3rem;
  border-radius: 5px;
  transition: background 0.15s;
}

.issues-link:hover {
  background: #3d85ff;
}

.issues-icon {
  color: #4caf50;
  margin-right: 0.4rem;
  font-size: 0.7rem;
  vertical-align: middle;
}

/* Footer */
footer {
  margin-top: 2.5rem;
  text-align: center;
  color: #555;
  font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 600px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .info-panels {
    grid-template-columns: 1fr;
  }
}