/* ═══════════════════════════════════════
    Overlay · Modal, Toast, Lightbox, Achievement, Cookie
   ═══════════════════════════════════════ */

/* ── MODAL (M3 Dialog) ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: var(--z-modal);
  background: rgba(13,33,55,.4);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fadeIn .2s;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.modal-overlay.closing {
  animation: fadeOut .2s forwards;
}
.modal {
  background: var(--md-surface);
  border-radius: var(--md-shape-lg);
  box-shadow: var(--md-elevation-5);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
  animation: slideUp .3s;
}
.modal.closing {
  animation: slideDown .3s forwards;
}
.modal-title { font-family: var(--md-font-display); font-size: 1.25rem; font-weight: 600; margin-bottom: 20px; color: var(--md-primary); }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; flex-wrap: wrap; }
.modal-header { font-weight: 600; font-size: 1.05rem; margin-bottom: 16px; }
.modal-body { margin-bottom: 16px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; padding-top: 16px; margin-top: 16px; border-top: 1px solid var(--md-outline-variant); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes slideDown { from { opacity: 1; transform: translateY(0) scale(1); } to { opacity: 0; transform: translateY(24px) scale(.98); } }

/* ── EMPTY STATE ── */
.empty-state { text-align: center; padding: 60px 20px 56px; color: var(--md-on-surface-variant); position: relative; }
.empty-state::before {
  content: '';
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 100px; height: 100px;
  background: radial-gradient(circle, var(--md-primary-container) 0%, transparent 70%);
  opacity: .4;
  border-radius: 50%;
}
.empty-state-icon { font-size: 3.2rem; margin-bottom: 16px; opacity: .3; line-height: 1; display: flex; align-items: center; justify-content: center; position: relative; }
.empty-state-icon svg { width: 1em; height: 1em; }
.empty-state p { font-size: .95rem; position: relative; }

@keyframes spin { to { transform: rotate(360deg); } }
.no-animation *,
.no-animation *::before,
.no-animation *::after {
  animation: none !important;
  transition: none !important;
}

/* ── TOAST ── */
.toast-container { position: fixed; top: 80px; right: 24px; z-index: var(--z-toast); display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 14px 24px;
  border-radius: var(--md-shape-sm);
  color: #fff;
  font-size: .88rem;
  font-weight: 500;
  box-shadow: var(--md-elevation-3);
  animation: slideIn .3s;
  max-width: 380px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.toast-success { background: var(--success); }
.toast-error { background: var(--md-error); }
.toast-info { background: var(--md-primary-dim); }
@keyframes slideIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(40px); } }
.toast.exit { animation: slideOut .25s forwards; }

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed; inset: 0; z-index: var(--z-lightbox);
  background: rgba(0,0,0,.92);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fadeIn .2s;
  cursor: zoom-out;
}
.lightbox-img {
  max-width: 95vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: var(--md-shape-sm);
  box-shadow: var(--md-elevation-5);
  animation: lightboxIn .3s;
  cursor: default;
  transition: transform .05s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
}
.lightbox-close {
  position: absolute; top: 16px; right: 20px;
  color: #fff; font-size: 2rem; cursor: pointer;
  opacity: .7; transition: opacity .2s;
  background: none; border: none;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-close svg { width: 1em; height: 1em; }
/* Image picker close (3D carousel viewer) */
.img-picker-close {
  position: fixed; top: 16px; right: 16px; z-index: 10000;
  width: 40px; height: 40px;
  border: none; border-radius: 50%;
  background: rgba(0,0,0,.4); color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background .2s;
}
.img-picker-close:hover { background: rgba(0,0,0,.6); }
.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: #fff; font-size: 2.5rem; cursor: pointer;
  opacity: .6; transition: opacity .2s;
  padding: 12px;
  background: none; border: none;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
}
.lightbox-nav svg { width: 1em; height: 1em; }
.lightbox-nav:hover { opacity: 1; }
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }
.lightbox-counter {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.6); font-size: .9rem;
}
.lightbox-zoom-controls {
  position: absolute; bottom: 20px; right: 24px;
  display: flex; gap: 8px;
}
.lightbox-zoom-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-family: inherit;
  line-height: 1;
  transition: background .2s;
}
.lightbox-zoom-btn:hover { background: rgba(255,255,255,.3); }
.lightbox-zoom-btn svg { width: 14px; height: 14px; }
.img-clickable { cursor: pointer; transition: transform .2s; }
.img-clickable:hover { transform: scale(1.03); }

@keyframes lightboxIn {
  from { opacity: 0; transform: scale(.92); }
  to { opacity: 1; transform: scale(1); }
}

.lightbox-closing { animation: lightboxOut .25s forwards; }
.lightbox-closing .lightbox-img { animation: lightboxOutImg .25s forwards; }

@keyframes lightboxOut {
  from { opacity: 1; }
  to { opacity: 0; }
}
@keyframes lightboxOutImg {
  from { opacity: 1; transform: scale(1); }
  to { opacity: 0; transform: scale(.92); }
}

.lightbox-img-exit-left { animation: slideOutLeft .22s forwards; }
.lightbox-img-exit-right { animation: slideOutRight .22s forwards; }

@keyframes slideOutLeft {
  to { transform: translateX(-60px); opacity: 0; }
}
@keyframes slideOutRight {
  to { transform: translateX(60px); opacity: 0; }
}

.lightbox-img.img-enter-right { animation: slideInRight .25s ease; }
.lightbox-img.img-enter-left { animation: slideInLeft .25s ease; }

@keyframes slideInRight {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideInLeft {
  from { transform: translateX(-50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── Achievement Toast (Minecraft-style) ── */
.ach-toast {
  position: fixed;
  top: -120px;
  left: 50%;
  transform: translateX(-50%) scale(.6);
  z-index: var(--z-ach-toast);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
  border: 3px solid #555;
  border-top-color: #777;
  border-left-color: #666;
  border-radius: 6px;
  box-shadow: 0 0 20px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.08);
  opacity: 0;
  transition: top .5s cubic-bezier(.34,1.56,.64,1), opacity .4s, transform .4s cubic-bezier(.34,1.56,.64,1);
  pointer-events: none;
  max-width: 90vw;
}
.ach-toast.show {
  top: 24px;
  opacity: 1;
  transform: translateX(-50%) scale(1);
}
.ach-toast-icon {
  font-size: 2.4rem;
  color: #ffd700;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,.4));
  flex-shrink: 0;
  width: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ach-toast-body { text-align: left; }
.ach-toast-title {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #aaa;
  font-weight: 600;
}
.ach-toast-name {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin: 2px 0 4px;
}
.ach-toast-desc {
  font-size: .78rem;
  color: #999;
}

.cookie-banner {
  position: fixed; bottom: 0; left: 12px; right: 12px; z-index: var(--z-top);
  background: var(--md-surface-container-high); color: var(--md-on-surface);
  padding: 14px 20px; display: flex; align-items: center; gap: 12px;
  font-size: .85rem; line-height: 1.5; font-weight: 500;
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -4px 24px rgba(0,0,0,.18);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  transform: translateY(calc(100% + 12px));
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.cookie-banner.show { transform: translateY(0); }
.cookie-banner .cookie-banner-icon { display: inline-flex; font-size: 1.3rem; opacity: .8; flex-shrink: 0; }
.cookie-banner span:not(.cookie-banner-icon) { flex: 1; }
.cookie-banner .btn { flex-shrink: 0; white-space: nowrap; border-radius: 20px; padding: 4px 18px; }
.dark .cookie-banner { background: rgba(29,31,36,.96); border: 1px solid var(--md-outline-variant); border-bottom: none; }

.modal-close {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; padding: 0;
  border: none; border-radius: 50%;
  background: transparent; color: var(--md-on-surface-variant);
  cursor: pointer; font-size: 1.1rem;
  transition: background .2s;
}
.modal-close:hover { background: var(--md-surface-container-high); }