/* ════════════════════════════════════════════════════════════════════
   ACHIEVEMENTS — Toast · Gallery · Skins
   ════════════════════════════════════════════════════════════════════ */

/* ── Achievement Toast (Steam-style, bottom-right) ─────────────────── */
.achievement-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 11000;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 320px;
  padding: 0.85rem 1rem 1rem;
  background: rgba(13, 13, 18, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(16,185,129,.22);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  box-shadow:
    0 0 0 1px rgba(16,185,129,.05),
    0 12px 40px rgba(0,0,0,.7),
    0 0 30px rgba(16,185,129,.05);
  animation: ach-toast-in 0.45s cubic-bezier(.22,.8,.32,1) forwards;
  cursor: pointer;
  overflow: hidden;
}
.achievement-toast.hiding {
  animation: ach-toast-out 0.35s cubic-bezier(.4,0,.8,.4) forwards;
}

@keyframes ach-toast-in {
  from { opacity: 0; transform: translateX(110%) scale(0.95); }
  to   { opacity: 1; transform: translateX(0)   scale(1); }
}
@keyframes ach-toast-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(110%); }
}

.ach-toast-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(16,185,129,.45));
}

.ach-toast-body {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  flex: 1;
  min-width: 0;
}

.ach-toast-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.75;
}

.ach-toast-name {
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ach-toast-desc {
  font-size: 0.7rem;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ach-toast-reward {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.22rem 0.5rem;
  border-radius: 5px;
  letter-spacing: 0.02em;
  align-self: flex-start;
}
.ach-toast-reward.reward-balance {
  background: rgba(52,211,153,.12);
  border: 1px solid rgba(52,211,153,.28);
  color: var(--green);
}
.ach-toast-reward.reward-skin {
  background: rgba(192,132,252,.12);
  border: 1px solid rgba(192,132,252,.28);
  color: var(--rose);
}

.ach-toast-progress {
  position: absolute;
  bottom: 0; left: 3px; right: 0;
  height: 2px;
  background: rgba(255,255,255,.04);
  overflow: hidden;
}
.ach-toast-progress-bar {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  animation: ach-progress linear forwards;
  transform-origin: left;
}
@keyframes ach-progress {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ── Achievement Gallery Overlay ────────────────────────────────────── */
#achievements-panel {
  position: fixed;
  inset: 0;
  z-index: 10500;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,6,10,.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
#achievements-panel.open {
  opacity: 1;
  pointer-events: all;
}

.ach-panel-box {
  position: relative;
  width: min(92vw, 860px);
  max-height: 88vh;
  background: var(--bg-main);
  border: 1px solid rgba(255,255,255,.06);
  border-top: 1px solid rgba(16,185,129,.15);
  border-radius: 16px;
  box-shadow:
    0 32px 80px rgba(0,0,0,.85),
    0 0 0 1px rgba(16,185,129,.05),
    inset 0 1px 0 rgba(255,255,255,.04);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.32s cubic-bezier(.22,.8,.32,1);
}
#achievements-panel.open .ach-panel-box {
  transform: translateY(0) scale(1);
}

.ach-panel-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(16,185,129,.05) 0%, transparent 50%);
}

.ach-panel-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  flex: 1;
}

.ach-panel-count {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  padding: 0.22rem 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.ach-panel-count span {
  color: var(--green);
  font-weight: 700;
}

.ach-panel-close {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-faint);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.ach-panel-close:hover {
  border-color: var(--red);
  color: var(--red);
  background: rgba(248,113,113,.07);
}

.ach-panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.7rem;
  padding: 1.2rem 1.4rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.06) transparent;
}

/* ── Achievement Card ───────────────────────────────────────────────── */
.ach-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.85rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  overflow: hidden;
}
.ach-card.unlocked {
  border-color: rgba(16,185,129,.18);
}
.ach-card.unlocked:hover {
  border-color: rgba(16,185,129,.38);
  box-shadow: 0 4px 20px rgba(16,185,129,.07);
  transform: translateY(-2px);
}
.ach-card.locked {
  opacity: 0.38;
  filter: grayscale(0.7);
}

.ach-card-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 25% 25%, rgba(16,185,129,.08) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
}
.ach-card.unlocked:hover .ach-card-glow { opacity: 1; }

.ach-card-top {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.ach-card-icon {
  font-size: 1.55rem;
  line-height: 1;
  flex-shrink: 0;
}
.ach-card-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}
.ach-card-desc {
  font-size: 0.68rem;
  color: var(--text-faint);
  line-height: 1.45;
}
.ach-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  margin-top: 0.15rem;
}
.ach-card-reward {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.16rem 0.42rem;
  border-radius: 4px;
}
.ach-card-reward.reward-balance {
  background: rgba(52,211,153,.1);
  border: 1px solid rgba(52,211,153,.22);
  color: var(--green);
}
.ach-card-reward.reward-skin {
  background: rgba(192,132,252,.1);
  border: 1px solid rgba(192,132,252,.22);
  color: var(--rose);
}
.ach-card-reward.reward-emote {
  background: rgba(99,202,253,.08);
  border: 1px solid rgba(99,202,253,.22);
  color: rgb(99,202,253);
}
.ach-card-lock {
  font-size: 0.7rem;
  opacity: 0.4;
}
.ach-card-apply {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 600;
  padding: 0.16rem 0.42rem;
  border-radius: 4px;
  border: 1px solid rgba(16,185,129,.3);
  background: rgba(16,185,129,.07);
  color: var(--accent);
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.ach-card-apply:hover {
  background: rgba(16,185,129,.16);
  border-color: var(--accent);
}
.ach-card-apply.active-skin {
  background: rgba(16,185,129,.2);
  border-color: var(--accent);
  color: #fff;
}

/* ── Achievements button in header ──────────────────────────────────── */
.achievements-btn {
  display: flex;
  align-items: center;
  gap: 0.32rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: #fff;
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}
.achievements-btn:hover {
  background: var(--bg-surface);
  color: var(--amber);
  border-color: rgba(251,191,36,.28);
}
.ach-btn-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 3px;
  border-radius: 999px;
  background: rgba(251,191,36,.14);
  border: 1px solid rgba(251,191,36,.22);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
}

/* ── Skins button ────────────────────────────────────────────────────── */
.skins-btn {
  display: flex;
  align-items: center;
  gap: 0.32rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: #fff;
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}
.skins-btn:hover {
  background: var(--bg-surface);
  color: #a78bfa;
  border-color: rgba(167,139,250,.28);
}

/* ── Skins panel ─────────────────────────────────────────────────────── */
#skins-panel {
  position: fixed;
  inset: 0;
  background: rgba(5,6,10,.82);
  backdrop-filter: blur(6px);
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
#skins-panel.open {
  opacity: 1;
  pointer-events: all;
}

.skin-panel-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: min(760px, 94vw);
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.55);
}

.skin-panel-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem 0.85rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.skin-panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}
.skin-panel-count {
  font-size: 0.68rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  margin-left: auto;
}
.skin-panel-close {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-faint);
  font-size: 0.8rem;
  width: 26px; height: 26px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.skin-panel-close:hover { color: var(--text); border-color: rgba(255,255,255,.18); }

.skin-panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  padding: 1.25rem;
  overflow-y: auto;
}

/* ── Individual skin card ──────────────────────────────────────────── */
.skin-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,.03);
  transition: border-color 0.2s, background 0.2s;
}
.skin-card:hover {
  border-color: rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.skin-card.skin-card-active {
  border-color: rgba(167,139,250,.4);
  background: rgba(167,139,250,.06);
}

/* ── Preview seat inside skin card ────────────────────────────────── */
.skin-preview-seat {
  width: 130px;
  min-width: unset;
  padding: 0.55rem 0.6rem 0.5rem;
  cursor: default;
  pointer-events: none;
  border-radius: 8px;
}
.skin-preview-name {
  font-size: 0.5rem;
  font-weight: 600;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}
.skin-preview-cards {
  display: flex;
  gap: 5px;
  justify-content: center;
  margin: 0.2rem 0;
}
.skin-preview-card {
  width: 30px;
  height: 44px;
  background: #f8f8f5;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  box-shadow: 0 2px 6px rgba(0,0,0,.4);
}
.skin-card-rank {
  font-size: 0.78rem;
  font-weight: 800;
  color: #111;
  line-height: 1;
}
.skin-card-suit {
  font-size: 0.62rem;
  color: #111;
  line-height: 1;
}
.skin-preview-card.red .skin-card-rank,
.skin-preview-card.red .skin-card-suit { color: #d32f2f; }

.skin-preview-total {
  font-size: 0.6rem;
  font-weight: 700;
  color: rgba(16,185,129,.85);
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

/* ── Skin card footer ──────────────────────────────────────────────── */
.skin-card-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  width: 100%;
}
.skin-card-name {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.skin-card-btn {
  width: 100%;
  padding: 0.28rem 0;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: transparent;
  color: var(--text-faint);
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.skin-card-btn:hover {
  background: rgba(167,139,250,.12);
  border-color: rgba(167,139,250,.3);
  color: #a78bfa;
}
.skin-card-btn.active-skin {
  background: rgba(167,139,250,.16);
  border-color: rgba(167,139,250,.45);
  color: #a78bfa;
}

/* ── Empty state ───────────────────────────────────────────────────── */
.skin-panel-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 3rem 1rem;
  color: var(--text-faint);
  font-size: 0.8rem;
  text-align: center;
}
.skin-panel-empty-icon { font-size: 2.5rem; }
.skin-panel-empty-sub  { font-size: 0.68rem; color: var(--text-faint); opacity: 0.6; }

/* ── Reset row ─────────────────────────────────────────────────────── */
.skin-reset-row {
  padding: 0 1.25rem 1rem;
  display: flex;
  justify-content: center;
  flex-shrink: 0;
}
.skin-reset-btn {
  padding: 0.3rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: transparent;
  color: var(--text-faint);
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  opacity: 0.7;
}
.skin-reset-btn:hover {
  opacity: 1;
  border-color: rgba(255,255,255,.15);
  color: var(--text);
}

/* ════════════════════════════════════════════════════════════════════
   SKIN THEMES — class on .seat (per-player, visible to all)
   ════════════════════════════════════════════════════════════════════ */

.seat[class*="theme-"],
.skin-preview-seat[class*="theme-"] {
  overflow: hidden;
}

.seat.theme-fire, .skin-preview-seat.theme-fire {
  background:
    radial-gradient(ellipse at 50% 90%, rgba(239,68,68,.35) 0%, transparent 60%),
    radial-gradient(ellipse at 18% 40%, rgba(251,100,36,.22) 0%, transparent 50%),
    rgba(20,6,4,.85);
  border-color: rgba(239,68,68,.35);
  box-shadow: 0 0 14px rgba(239,68,68,.15);
}

.seat.theme-volcano, .skin-preview-seat.theme-volcano {
  background:
    radial-gradient(ellipse at 50% 100%, rgba(185,28,28,.45) 0%, transparent 60%),
    radial-gradient(ellipse at 28% 55%, rgba(120,20,20,.25) 0%, transparent 50%),
    rgba(14,4,4,.9);
  border-color: rgba(185,28,28,.4);
  box-shadow: 0 0 14px rgba(185,28,28,.18);
}

.seat.theme-kaleidoscope, .skin-preview-seat.theme-kaleidoscope {
  background:
    radial-gradient(ellipse at 18% 28%, rgba(139,92,246,.3) 0%, transparent 55%),
    radial-gradient(ellipse at 82% 72%, rgba(6,182,212,.25) 0%, transparent 55%),
    rgba(8,4,14,.88);
  border-color: rgba(139,92,246,.35);
  animation: kaleido-shift 9s ease-in-out infinite alternate;
}
@keyframes kaleido-shift {
  from { filter: hue-rotate(0deg) saturate(1); }
  to   { filter: hue-rotate(35deg) saturate(1.1); }
}

.seat.theme-underdog, .skin-preview-seat.theme-underdog {
  background:
    radial-gradient(ellipse at 38% 58%, rgba(101,120,68,.3) 0%, transparent 55%),
    radial-gradient(ellipse at 68% 28%, rgba(63,98,100,.2) 0%, transparent 50%),
    rgba(6,10,6,.88);
  border-color: rgba(101,120,68,.35);
}

.seat.theme-zen, .skin-preview-seat.theme-zen {
  background:
    radial-gradient(ellipse at 28% 38%, rgba(67,100,175,.28) 0%, transparent 55%),
    radial-gradient(ellipse at 72% 65%, rgba(99,102,241,.2) 0%, transparent 50%),
    rgba(5,7,16,.88);
  border-color: rgba(99,102,241,.3);
  box-shadow: 0 0 12px rgba(99,102,241,.1);
}

.seat.theme-veteran, .skin-preview-seat.theme-veteran {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(75,83,52,.35) 0%, transparent 60%),
    rgba(6,7,7,.9);
  border-color: rgba(75,83,52,.4);
}

.seat.theme-pain, .skin-preview-seat.theme-pain {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(55,65,88,.4) 0%, transparent 65%),
    rgba(5,6,12,.9);
  border-color: rgba(55,65,88,.3);
  filter: saturate(0.5) brightness(0.85);
}

.seat.theme-legend, .skin-preview-seat.theme-legend {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(88,28,135,.35) 0%, transparent 60%),
    radial-gradient(ellipse at 18% 18%, rgba(126,34,206,.18) 0%, transparent 45%),
    rgba(4,2,8,.9);
  border-color: rgba(126,34,206,.4);
  box-shadow: 0 0 16px rgba(88,28,135,.22);
}
.seat.theme-legend::after, .skin-preview-seat.theme-legend::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 14% 19%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 73% 14%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 34% 76%, rgba(255,255,255,.45) 0%, transparent 100%),
    radial-gradient(1px 1px at 61% 54%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 86% 69%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 46% 9%,  rgba(200,180,255,.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 24% 46%, rgba(200,180,255,.5) 0%, transparent 100%);
  pointer-events: none;
  animation: star-twinkle 4s ease-in-out infinite alternate;
  z-index: 0;
}
@keyframes star-twinkle {
  from { opacity: 0.5; }
  to   { opacity: 1; }
}

.seat.theme-streak, .skin-preview-seat.theme-streak {
  background:
    radial-gradient(ellipse at 50% 80%, rgba(6,182,212,.3) 0%, transparent 55%),
    radial-gradient(ellipse at 22% 30%, rgba(14,165,233,.2) 0%, transparent 50%),
    rgba(3,8,14,.9);
  border-color: rgba(6,182,212,.35);
  box-shadow: 0 0 14px rgba(6,182,212,.14);
}

.seat.theme-vip, .skin-preview-seat.theme-vip {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(20,14,4,.96) 0%, transparent 70%),
    radial-gradient(ellipse at 18% 28%, rgba(180,140,60,.15) 0%, transparent 50%),
    rgba(6,5,2,.92);
  border-color: rgba(180,140,60,.4);
  box-shadow: 0 0 14px rgba(180,140,60,.12);
}

.seat.theme-gold, .skin-preview-seat.theme-gold {
  background:
    radial-gradient(ellipse at 50% 28%, rgba(217,159,30,.32) 0%, transparent 55%),
    radial-gradient(ellipse at 18% 72%, rgba(180,120,20,.2) 0%, transparent 50%),
    rgba(10,8,2,.88);
  border-color: rgba(217,159,30,.4);
  box-shadow: 0 0 16px rgba(217,159,30,.14);
}

.seat.theme-ashes, .skin-preview-seat.theme-ashes {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(75,75,80,.38) 0%, transparent 65%),
    rgba(5,5,6,.9);
  border-color: rgba(75,75,80,.35);
  filter: saturate(0.15) brightness(0.82);
}

.seat.theme-divine, .skin-preview-seat.theme-divine {
  background:
    radial-gradient(ellipse at 50% 28%, rgba(255,245,200,.18) 0%, transparent 55%),
    radial-gradient(ellipse at 28% 68%, rgba(200,180,255,.14) 0%, transparent 50%),
    rgba(8,7,14,.88);
  border-color: rgba(255,240,180,.25);
  box-shadow: 0 0 18px rgba(255,240,180,.08);
}