:root {
  --bg-top: #070d19;
  --bg-bottom: #0f1c33;
  --card-bg: rgba(16, 29, 52, 0.78);
  --card-border: rgba(148, 197, 248, 0.16);
  --text-primary: #f1f7ff;
  --text-secondary: #b8d4f2;
  --text-muted: #7fa3c9;
  --accent: #56b4fc;
  --accent-hover: #7bc5fe;
  --accent-dark: #061326;
  --row-bg: rgba(10, 20, 38, 0.7);
  --row-border: rgba(148, 197, 248, 0.14);
}

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

html {
  scroll-behavior: smooth;
}

html, body {
  min-height: 100%;
  background-color: var(--bg-top);
  background-image: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

#snow-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* Lebegő visszajelzés gomb (jobb lent) */
.floating-feedback-pill {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 32, 60, 0.9);
  color: var(--accent);
  border: 1px solid rgba(86, 180, 252, 0.4);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.floating-feedback-pill:hover {
  transform: translateY(-2px);
  background: rgba(22, 45, 84, 0.95);
  border-color: var(--accent-hover);
  color: #ffffff;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
  padding: 44px 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 32px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 42px 32px;
}

.badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(86, 180, 252, 0.12);
  border: 1px solid rgba(86, 180, 252, 0.28);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

h1 {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 14px;
}

.lead {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 26px;
}

.hero-actions-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--accent);
  color: var(--accent-dark);
  font-size: 1.02rem;
  font-weight: 600;
  text-decoration: none;
  padding: 13px 26px;
  border-radius: 10px;
  transition: background-color 0.18s ease, transform 0.15s ease;
}

.btn-download:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-feedback-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(86, 180, 252, 0.12);
  color: #ffffff;
  border: 1px solid rgba(86, 180, 252, 0.35);
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: 10px;
  transition: all 0.18s ease;
}

.btn-feedback-hero:hover {
  background: rgba(86, 180, 252, 0.22);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.version-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Sections */
h2 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(148, 197, 248, 0.12);
}

/* =========================================
   OptiFine stílusú letöltési sorok és leugrók
   ========================================= */
.releases-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.release-group-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 6px;
  margin-bottom: 8px;
}

.release-card-row {
  background: var(--row-bg);
  border: 1px solid var(--row-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.release-card-row:hover {
  border-color: rgba(148, 197, 248, 0.28);
}

.release-main-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  gap: 12px;
  flex-wrap: wrap;
}

.release-info-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.release-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
}

.badge-latest {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(86, 180, 252, 0.15);
  border: 1px solid rgba(86, 180, 252, 0.35);
  padding: 2px 8px;
  border-radius: 6px;
}

.release-date {
  font-size: 0.84rem;
  color: var(--text-muted);
}

.release-actions-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-optifine-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #2a558c;
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  padding: 7px 16px;
  border-radius: 6px;
  transition: background-color 0.15s ease;
}

.btn-optifine-download:hover {
  background: #3970b5;
}

.btn-toggle-changelog {
  background: transparent;
  border: none;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 6px;
  border-radius: 4px;
  transition: color 0.15s ease;
}

.btn-toggle-changelog:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.btn-toggle-changelog .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-size: 0.75rem;
}

.btn-toggle-changelog.active .arrow {
  transform: rotate(180deg);
}

/* Leugró / lenyitható változáslista */
.release-changelog-drawer {
  display: none;
  padding: 14px 20px 18px;
  background: rgba(6, 14, 28, 0.6);
  border-top: 1px solid rgba(148, 197, 248, 0.1);
}

.release-changelog-drawer.open {
  display: block;
}

.changelog-changes {
  list-style: disc;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Korábbi verziók kinyitó gombja (OptiFine + More / Show all versions stílus) */
.toggle-older-container {
  text-align: center;
  padding-top: 8px;
}

.btn-show-all-versions {
  background: transparent;
  border: 1px dashed rgba(86, 180, 252, 0.3);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  width: 100%;
}

.btn-show-all-versions:hover {
  background: rgba(86, 180, 252, 0.08);
  border-color: var(--accent);
  color: #ffffff;
}

.older-releases-list {
  display: none;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.older-releases-list.open {
  display: flex;
}

/* Feature List */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.feature-list .bullet {
  color: var(--accent);
  font-size: 1rem;
  line-height: 1.6;
  flex-shrink: 0;
}

/* Specs Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
}

.spec-item {
  background: var(--row-bg);
  border: 1px solid rgba(148, 197, 248, 0.1);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spec-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.spec-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* =========================================
   Kisebb, feltűnő visszajelzés kártya
   ========================================= */
.feedback-card {
  border: 1px solid rgba(86, 180, 252, 0.35);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 16px rgba(86, 180, 252, 0.08);
}

.feedback-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}

.feedback-header h2 {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.feedback-badge {
  background: rgba(86, 180, 252, 0.18);
  border-color: rgba(86, 180, 252, 0.45);
  margin-bottom: 8px;
}

.feedback-external-link {
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.feedback-external-link:hover {
  text-decoration: underline;
}

.feedback-intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.feedback-frame-wrapper {
  width: 100%;
  height: 480px;
  overflow: hidden;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(148, 197, 248, 0.25);
}

.feedback-frame-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.loading-text {
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* Footer */
.footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-top: 8px;
}

@media (max-width: 650px) {
  .container {
    padding: 24px 14px 60px;
  }

  .card, .hero {
    padding: 22px 18px;
  }

  h1 {
    font-size: 2.1rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-download, .btn-feedback-hero {
    width: 100%;
  }

  .release-main-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .release-actions-right {
    width: 100%;
    justify-content: space-between;
  }

  .floating-feedback-pill {
    bottom: 16px;
    right: 16px;
    font-size: 0.82rem;
    padding: 8px 14px;
  }

  .feedback-frame-wrapper {
    height: 440px;
  }
}