:root {
  --modal-bg: rgba(0, 0, 0, .7);
  --modal-radius: 20px;
  --modal-shadow: 0 24px 48px rgba(0, 0, 0, .4);
  --accent: #007bff;
  --accent-light: #00d4ff;
  --text: #e2e8f0;
  --surface: #1e293b;
}

/* фон-подложка */
.steam-modal,
.modal,
.achievements-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--modal-bg);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn .35s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(.96); }
  to   { opacity: 1; transform: scale(1); }
}

/* -------------------------------------------------
   2.  СОДЕРЖИМОЕ
-------------------------------------------------- */
.steam-modal-content,
.modal-content,
.achievements-modal .modal-content {
  position: relative;
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--surface);
  color: var(--text);
  border-radius: var(--modal-radius);
  box-shadow: var(--modal-shadow);
  padding: 2.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}
.steam-modal-content::-webkit-scrollbar,
.modal-content::-webkit-scrollbar,
.achievements-modal .modal-content::-webkit-scrollbar {
  width: 6px;
}
.steam-modal-content::-webkit-scrollbar-thumb,
.modal-content::-webkit-scrollbar-thumb,
.achievements-modal .modal-content::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

/* заголовки */
.steam-modal-content h2,
.modal-content h2,
.achievements-modal h2 {
  margin-top: 0;
  font-size: 1.7rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.25rem;
}

/* изображение внутри модалки */
.steam-modal-content img,
.modal-content img {
  width: 100%;
  border-radius: 12px;
  margin-bottom: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
}

/* абзацы */
.steam-modal-content p,
.modal-content p {
  margin: .4rem 0;
  font-size: 1rem;
  line-height: 1.5;
}
.steam-modal-content strong,
.modal-content strong {
  color: var(--accent-light);
}

.btn-screens {
  margin-top: 1.25rem;
  padding: .65rem 1.5rem;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s;
}
.btn-screens:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 123, 255, .45);
}

.steam-modal-close,
.close,
.achievements-modal .close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .25s;
}
.steam-modal-close:hover,
.close:hover,
.achievements-modal .close:hover {
  background: rgba(255, 255, 255, .2);
}

#allAchievementsList {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  padding: .5rem 0 1.5rem;
}

.ach-item {
  background: rgba(255, 255, 255, .08);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  transition: transform .25s, box-shadow .25s;
}
.ach-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 123, 255, .25);
}
.ach-item.unlocked { border-left: 4px solid #28a745; }
.ach-item.locked   { border-left: 4px solid #6c757d; opacity: .7; }
.ach-item i {
  font-size: 1.6rem;
  min-width: 28px;
  text-align: center;
}
.ach-item.unlocked i { color: #28a745; }
.ach-item.locked   i { color: #6c757d; }
.ach-item strong {
  font-size: 1rem;
  margin-bottom: .15rem;
  display: block;
}
.ach-item small {
  font-size: .8rem;
  color: #94a3b8;
}
.ach-date {
  font-size: .75rem;
  color: #cbd5e1;
  margin-top: .3rem;
}

@media (max-width: 600px) {
  .steam-modal-content,
  .modal-content,
  .achievements-modal .modal-content {
    padding: 1.5rem;
    border-radius: 0;
  }
  .steam-modal,
  .modal,
  .achievements-modal {
    padding: 0;
  }
}