:root {
  --bg1: #0f172a; /* slate-900 */
  --bg2: #1e293b; /* slate-800 */
  --glass: rgba(255, 255, 255, 0.06);
  --text: #e5e7eb; /* zinc-200 */
  --muted: #94a3b8; /* slate-400 */
  --accent: #60a5fa; /* blue-400 */
  --good: #34d399; /* emerald-400 */
  --bad: #f87171; /* red-400 */
  --caret: #eab308; /* yellow-500 */
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
  --radius: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% 10%, #0b1223, transparent),
              radial-gradient(900px 600px at 90% 20%, #0a1a2f, transparent),
              linear-gradient(135deg, #0b1020 0%, #0e162a 40%, #0f172a 100%);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.bg-anim {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: conic-gradient(from 180deg at 50% 50%, #111827, #0f172a, #0a1a2f, #111827);
  mix-blend-mode: plus-lighter;
  filter: blur(80px) opacity(0.4);
  animation: spin 30s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.app {
  position: relative; z-index: 1;
  display: grid; place-items: center; min-height: 100%; padding: 32px;
}

/* Oyun alanı kabuğu - mobilde kartı görünür viewport'a göre konumlamak için ayrı katman */
.play-shell { width: 100%; display: flex; justify-content: center; align-items: flex-start; }

.card {
  width: min(1300px, 96vw);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px) saturate(140%);
  padding: 28px 28px 20px;
  margin-top: 72px;
}

header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px; letter-spacing: 0.2px;
}
.brand .logo {
  width: 36px; height: 36px; border-radius: 9px;
  background: radial-gradient(120% 120% at 30% 30%, #60a5fa, #2563eb 60%, #1d4ed8 100%);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.45);
}
.brand h1 { font-size: 20px; margin: 0; font-weight: 800; }
.brand span { font-size: 12px; color: var(--muted); font-weight: 600; }

.stats { display: flex; gap: 16px; flex-wrap: wrap; }
.pill {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 8px 12px; border-radius: 999px; min-width: 90px;
  display: flex; gap: 10px; align-items: baseline; justify-content: center;
}
.pill .val { font-weight: 800; font-size: 18px; }
.pill .lab { color: var(--muted); font-size: 12px; font-weight: 600; }

.actions { display: flex; gap: 10px; }
.btn {
  border: 1px solid rgba(255,255,255,0.16);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  color: var(--text); padding: 10px 14px; border-radius: 12px;
  font-weight: 700; letter-spacing: 0.2px; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .2s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,0.25); }
.btn:active { transform: translateY(0); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; filter: grayscale(.3); }

.display {
  position: relative;
  line-height: 1.3;
  font-size: clamp(22px, 4vw, 36px);
  padding: 22px 16px;
  border-radius: 12px;
  min-height: clamp(120px, 22vh, 200px);
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.12);
  overflow: hidden;
  user-select: none;
  cursor: default;
}
.words {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(calc(-50% + var(--tx, 0px)), -50%);
  white-space: nowrap;
  display: block;
  transition: transform .18s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.word { display: inline-flex; gap: 0; padding: 2px 6px; border-radius: 10px; }
.word.active {
  background: linear-gradient(90deg, rgba(30,41,59,0.92) 60%, rgba(60,80,120,0.85) 100%);
  box-shadow: 0 2px 16px 0 rgba(0,0,0,0.22), 0 0 0 3px #33415599;
  border-radius: 12px;
  z-index: 2;
  position: relative;
  transition: background 0.18s, box-shadow 0.18s;
}
.char { position: relative; padding: 0 1px; border-radius: 4px; transition: color .08s ease, background .08s ease, transform .08s ease; }
.char.pending { color: #9aa4b2; opacity: 0.65; }
.char.correct { color: #34d399; background: transparent; }
.char.wrong { color: #f87171; background: transparent; }
.char.current { color: #ffffff; background: transparent; box-shadow: none; }
.char.current::after {
  content: ""; position: absolute; right: -1px; top: 12%; bottom: 12%; width: 2px; border-radius: 1px; background: var(--caret);
  animation: blink 1.1s steps(1, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.end-caret {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--caret);
  margin-left: 0px;
  transform: translateY(2px);
  opacity: 0; /* hidden by default */
}
.end-caret.show {
  opacity: 1;
  animation: blink 1.1s steps(1, start) infinite;
}
.shake { animation: shake .18s ease; }
@keyframes shake { 10%, 90% { transform: translateX(-1px); } 20%, 80% { transform: translateX(2px);} 30%, 50%, 70% { transform: translateX(-3px);} 40%, 60% { transform: translateX(3px);} }

.kbd {
  margin-top: 18px; background: rgba(0,0,0,0.24);
  border: 1px solid rgba(255,255,255,0.12); border-radius: 14px;
  padding: 14px; display: grid; gap: 8px;
}
.row { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 8px; }
.key {
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 10px; padding: 10px 8px; text-align: center; color: var(--text);
  font-weight: 700; letter-spacing: .4px; text-transform: uppercase; user-select: none;
  transition: transform .08s ease, background .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.key.space { grid-column: span 5; }
.key.wide { grid-column: span 2; }
.key.active { transform: translateY(1px) scale(0.98); box-shadow: inset 0 -6px 14px rgba(0,0,0,0.25); }
.key.correct { background: rgba(52,211,153,0.18); border-color: rgba(52,211,153,0.5); }
.key.wrong { background: rgba(248,113,113,0.2); border-color: rgba(248,113,113,0.55); }

.hint { margin-top: 10px; color: var(--muted); font-size: 12px; text-align: center; }

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  background: linear-gradient(180deg, rgba(20,20,30,0.98), rgba(20,20,30,0.92));
  box-shadow: 0 2px 16px rgba(0,0,0,0.10);
  padding: 0 24px;
  backdrop-filter: blur(8px) saturate(120%);
  transition: background .3s;
  gap: 0;
}

.topbar-spacer {
  flex: 1 1 auto;
}

.site-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--topbar-title-color);
  user-select: none;
  transition: color 0.3s;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.04em;
  flex: 0 0 auto;
}

.title-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(-32px) scale(0.96);
  animation:
    title-fade-in-soft 1.1s cubic-bezier(.33,1.2,.44,1) forwards,
    title-float-soft 3.2s cubic-bezier(.44,1.2,.44,1) calc(var(--i) * 0.10s + 1.1s) infinite alternate;
  animation-delay: calc(var(--i) * 0.10s);
  will-change: opacity, transform;
}

@keyframes title-fade-in-soft {
  0% {
    opacity: 0;
    transform: translateY(-32px) scale(0.96);
  }
  60% {
    opacity: 1;
    transform: translateY(4px) scale(1.04);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes title-float-soft {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-7px) scale(1.03); }
  100% { transform: translateY(0) scale(1); }
}

@keyframes title-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes title-float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}
.settings-btn {
  position: absolute;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text);
  padding: 6px;
  border-radius: 50%;
  cursor: pointer;
  transition: background .15s, box-shadow .15s, color .3s;
  box-shadow: none;
  overflow: hidden;
}
.help-btn {
  position: absolute;
  right: 72px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: background .15s, box-shadow .15s, color .3s;
}
.help-btn:hover { background: rgba(96,165,250,0.10); color: var(--accent); }
.help-popover {
  position: absolute;
  top: 56px; right: 72px;
  min-width: 260px;
  background: linear-gradient(180deg, rgba(20,20,30,0.98), rgba(20,20,30,0.94));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  padding: 12px;
  z-index: 200;
}
.help-content { font-size: 14px; color: var(--text); }
.help-content h3 { margin: 0 0 8px; font-size: 16px; }
.help-content ul { margin: 0; padding-left: 18px; color: var(--muted); }
.help-content li { margin: 6px 0; }

.leaderboard { margin-top: 22px; }
.leaderboard h2 { font-size: 18px; margin: 8px 0 10px; }
.lb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.lb-col h3 { font-size: 15px; margin: 0 0 8px; color: var(--muted); }
.lb-table { width: 100%; border-collapse: collapse; background: rgba(0,0,0,0.22); border: 1px solid rgba(255,255,255,0.10); border-radius: 12px; overflow: hidden; }
.lb-table th, .lb-table td { padding: 8px 10px; font-size: 13px; text-align: left; border-bottom: 1px solid rgba(255,255,255,0.06); }
.lb-table thead th { background: rgba(255,255,255,0.06); font-weight: 800; font-size: 12px; color: var(--muted); }
.lb-table tbody tr:nth-child(even) { background: rgba(255,255,255,0.03); }
.lb-table tbody tr:hover { background: rgba(96,165,250,0.06); }

@media (max-width: 900px) {
  .lb-grid { grid-template-columns: 1fr; }
  .help-btn { right: 56px; }
  .help-popover { right: 56px; }
}

/* Mobile specific target box adjustments */
@media (max-width: 900px) {
  .target-box.fixed-mobile {
    position: fixed !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    top: 50%; /* JS ile yeniden ayarlanacak */
    z-index: 400; /* klavyenin üstündeki içerikten önde */
    padding: 10px 28px !important;
    font-size: clamp(24px, 6vw, 40px) !important;
    max-width: 92vw;
    text-align: center;
  }
  .left-words, .right-words { display: none !important; }
  .display { min-height: 55vh; }
}
.settings-btn:active::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 120%; height: 120%;
  background: rgba(96,165,250,0.18);
  border-radius: 50%;
  transform: translate(-50%,-50%) scale(1.1);
  animation: ripple .4s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
  z-index: 1;
}
@keyframes ripple {
  0% { opacity: 0.5; transform: translate(-50%,-50%) scale(0.7); }
  100% { opacity: 0; transform: translate(-50%,-50%) scale(1.2); }
}
.settings-btn:hover, .settings-btn:focus {
  background: rgba(96,165,250,0.13);
  box-shadow: 0 2px 8px rgba(96,165,250,0.10);
  outline: none;
  color: var(--accent);
}
.settings-btn .gear {
  transform-origin: 50% 50%;
  transition: transform .3s ease;
}
.settings-btn:hover .gear,
.settings-btn:focus-visible .gear {
  transform: rotate(18deg);
}
.settings-dropdown {
  position: absolute;
  top: 56px;
  right: 24px;
  min-width: 180px;
  max-width: 220px;
  background: linear-gradient(180deg, rgba(20,20,30,0.98), rgba(20,20,30,0.94));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  padding: 8px;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px) scale(0.98);
  transition: opacity .22s cubic-bezier(.4,0,.2,1), transform .22s cubic-bezier(.4,0,.2,1);
  will-change: opacity, transform;
}
.settings-dropdown[hidden] {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px) scale(0.98);
}
.settings-dropdown:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.settings-dropdown .group {
  padding: 6px 2px;
  animation: fadein .35s cubic-bezier(.4,0,.2,1);
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.settings-dropdown .group-title {
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 6px;
  font-weight: 700;
  letter-spacing: .4px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.settings-dropdown .dd-item {
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: .2px;
  font-size: 0.95rem;
  transition: background .15s, border-color .15s, color .2s;
}
.settings-dropdown .dd-item:hover, .settings-dropdown .dd-item:focus {
  background: rgba(96,165,250,0.10);
  border-color: rgba(96,165,250,0.18);
  color: var(--accent);
}
.settings-dropdown .dd-item[aria-checked="true"] {
  background: rgba(96,165,250,0.18);
  border-color: rgba(96,165,250,0.4);
  color: var(--accent);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .bg-anim { animation: none; }
  .shake { animation: none; }
  .char.current::after { animation: none; }
}

@media (max-width: 720px) {
  .topbar { padding: 0 8px; }
  .settings-btn { right: 8px; }
  .settings-dropdown { right: 4px; }
}

/* (light theme removed) */

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: grid;
  place-items: center;
  z-index: 500;
}
.modal-overlay[hidden] {
  display: none !important;
}
.modal-dialog {
  width: min(420px, 92vw);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.04));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px) saturate(140%);
  padding: 18px;
}
.modal-title { margin: 0 0 6px; font-size: 18px; font-weight: 800; }
.modal-desc { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.modal-stats { display: flex; gap: 12px; margin: 8px 0 12px; }
.mstat { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: 12px; padding: 8px 12px; display: flex; align-items: baseline; gap: 8px; }
.mstat-label { color: var(--muted); font-size: 12px; font-weight: 700; }
.mstat-val { font-weight: 800; font-size: 18px; }
.modal-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.modal-input {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(0,0,0,0.24);
  color: var(--text);
  font-size: 14px;
}
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 14px; }

/* Mobile IME input (hidden off-screen) */
.mobile-ime {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* Mobile optimizations */
@media (max-width: 720px) {
  .card { width: 96vw; margin-top: 56px; padding: 16px; }
  header { flex-wrap: wrap; gap: 10px; }
  .stats { width: 100%; justify-content: space-between; }
  .display { min-height: 40vh; }
  .kbd { display: none !important; }
  .leaderboard { margin-top: 14px; }
  .lb-table th, .lb-table td { padding: 8px; font-size: 12px; }
  body { overscroll-behavior: contain; }
  .app { padding: 12px 10px 60px; place-items: stretch; }
  .play-shell { flex-direction: column; }
  .card { width: 100%; }
  /* Liderboard'u kaydırılabilir alt panel yap */
  .leaderboard { max-height: 42vh; overflow-y: auto; padding-right: 4px; }
  .leaderboard::-webkit-scrollbar { width: 6px; }
  .leaderboard::-webkit-scrollbar-track { background: transparent; }
  .leaderboard::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
  /* Odak kutusunun (target-box) çok aşağı kaçmaması için */
  .target-box { max-width: 94%; }
}