:root{
  --bg: #0a121c;
  --header-bg: #10281d;
  --header-border: #1c3f2c;
  --panel-bg: #16212f;
  --panel-bg-2: #131d29;
  --text: #f4f7f5;
  --text-dim: #9fadb9;
  --accent-green: #7ed957;
  --tile-empty-border: #33404d;
  --tile-filled-border: #7a8794;
  --tile-correct: #4f9a5b;
  --tile-present: #c9a227;
  --tile-absent: #4b5563;
  --key-bg: #57626f;
  --key-bg-hover: #67727f;
  --overlay-hover-1: rgba(255,255,255,.08);
  --overlay-hover-2: rgba(255,255,255,.06);
  --start-screen-bg: rgba(10,18,28,.94);
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 20px;
  --max-w: 560px;
}

[data-theme="light"]{
  --bg: #f4f7f5;
  --header-bg: #e3f3e6;
  --header-border: #c6e4cc;
  --panel-bg: #ffffff;
  --panel-bg-2: #eef1ef;
  --text: #16221b;
  --text-dim: #5c6b62;
  --accent-green: #2f9e44;
  --tile-empty-border: #c3ccc6;
  --tile-filled-border: #8b978f;
  --tile-correct: #4f9a5b;
  --tile-present: #c9a227;
  --tile-absent: #9aa5a0;
  --key-bg: #dde3df;
  --key-bg-hover: #ccd4cf;
  --overlay-hover-1: rgba(0,0,0,.06);
  --overlay-hover-2: rgba(0,0,0,.05);
  --start-screen-bg: rgba(244,247,245,.94);
}

*{box-sizing:border-box;}
html,body{
  margin:0; padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior:none;
}

button{font-family:inherit;}

.app{
  max-width:var(--max-w);
  margin:0 auto;
  min-height:100vh;
  min-height:100dvh;
  display:flex;
  flex-direction:column;
  padding-bottom:env(safe-area-inset-bottom);
}

/* ---------- HEADER ---------- */
.header{
  background:linear-gradient(180deg,var(--header-bg),#0d2118);
  border-bottom:1px solid var(--header-border);
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 14px;
  padding-top:calc(14px + env(safe-area-inset-top));
}
.icon-btn{
  background:none;
  border:none;
  color:var(--text);
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  cursor:pointer;
  flex-shrink:0;
  transition:background .15s ease;
}
.icon-btn:hover{background:var(--overlay-hover-1);}
.icon-btn svg{width:22px;height:22px;}

.brand{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-width:0;
  text-align:center;
}
.brand-logo{flex-shrink:0; display:flex; align-items:center;}
.brand-logo img{width:44px; height:auto; object-fit:contain; filter:drop-shadow(0 2px 4px rgba(0,0,0,.35));}
.brand-text h1{
  margin:0;
  font-size:1.35rem;
  font-weight:800;
  letter-spacing:.3px;
  white-space:nowrap;
}
.brand-text .accent{color:var(--accent-green);}
.brand-text p{
  margin:1px 0 0;
  font-size:.72rem;
  color:var(--text-dim);
  white-space:nowrap;
}

@media (max-width:380px){
  .brand-text h1{font-size:1.05rem;}
  .brand-text p{font-size:.65rem;}
}

/* ---------- MODE TABS ---------- */
.mode-tabs{
  display:flex;
  gap:8px;
  margin:14px 14px 0;
}
.mode-tab{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  background:var(--panel-bg);
  color:var(--text-dim);
  border:2px solid transparent;
  border-radius:12px;
  padding:10px 8px;
  font-weight:700;
  font-size:.86rem;
  cursor:pointer;
  transition:border-color .15s ease, color .15s ease;
}
.mode-tab.active{
  border-color:var(--accent-green);
  color:var(--text);
}
.day-badge{
  background:var(--accent-green);
  color:#0a120c;
  font-size:.68rem;
  font-weight:800;
  padding:2px 7px;
  border-radius:999px;
}

/* ---------- INFO BAR ---------- */
.infobar{
  margin:14px;
  background:var(--panel-bg);
  border-radius:var(--radius-m);
  padding:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.infobar-text p{margin:0; line-height:1.4;}
#instructions{font-size:.92rem;}
#triesLeft{font-size:.92rem; color:var(--text-dim); margin-top:2px !important;}

.btn-primary{
  background:var(--tile-correct);
  color:#fff;
  border:none;
  padding:11px 18px;
  border-radius:12px;
  font-weight:700;
  font-size:.9rem;
  cursor:pointer;
  white-space:nowrap;
  transition:filter .15s ease, transform .1s ease;
}
.btn-primary:hover{filter:brightness(1.08);}
.btn-primary:active{transform:scale(.96);}
.btn-full{width:100%; margin-top:18px;}

.btn-secondary{
  background:var(--key-bg);
  color:var(--text);
  border:none;
  padding:11px 18px;
  border-radius:12px;
  font-weight:700;
  font-size:.9rem;
  cursor:pointer;
  white-space:nowrap;
  transition:filter .15s ease, transform .1s ease;
}
.btn-secondary:hover{background:var(--key-bg-hover);}
.btn-secondary:active{transform:scale(.96);}
.btn-secondary + .btn-secondary{margin-top:10px;}
.btn-secondary.btn-full{margin-top:10px;}

.daily-come-back{
  text-align:center;
  color:var(--text-dim);
  font-size:.82rem;
  margin:14px 0 0;
}

/* ---------- PLAY AREA / START SCREEN ---------- */
.play-area{
  position:relative;
  flex:1;
  display:flex;
  flex-direction:column;
}
.start-screen{
  position:absolute;
  inset:0;
  z-index:40;
  background:var(--start-screen-bg);
  backdrop-filter:blur(2px);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:24px;
  opacity:1;
  transition:opacity .25s ease, visibility .25s ease;
}
.start-screen.hide{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.start-mascot{
  width:150px;
  height:auto;
  margin-bottom:6px;
  filter:drop-shadow(0 6px 14px rgba(0,0,0,.45));
}
.start-screen h2{
  margin:0 0 8px;
  font-size:1.4rem;
}
.start-screen p{
  margin:0 0 22px;
  color:var(--text-dim);
  font-size:.9rem;
  max-width:280px;
  line-height:1.4;
}
.start-screen .btn-primary{
  font-size:1.05rem;
  padding:14px 42px;
  width:auto;
  min-width:200px;
}

/* Hidden form/input used to trigger the device's native/system keyboard.
   Kept in the document flow near the top so focusing it doesn't cause
   iOS to scroll/zoom to an odd spot; font-size 16px prevents auto-zoom.
   Wrapping the input in a form lets any virtual-keyboard action key
   (Enter/Go/Done/Search) submit reliably via the form's submit event. */
.hidden-input{
  position:fixed;
  top:0; left:0;
  width:100%;
  height:1px;
  margin:0;
  z-index:-1;
}
.hidden-input input{
  width:100%;
  height:100%;
  opacity:0;
  border:none;
  outline:none;
  padding:0;
  margin:0;
  font-size:16px;
  background:transparent;
  color:transparent;
  caret-color:transparent;
}

/* ---------- BOARD ---------- */
.board-wrap{
  flex:1;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:6px 14px 10px;
}
.board{
  display:grid;
  grid-template-rows:repeat(6, 1fr);
  gap:10px;
  width:100%;
  max-width:340px;
}
.board-row{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:10px;
}
.tile{
  aspect-ratio:1/1;
  border:2px solid var(--tile-empty-border);
  border-radius:var(--radius-s);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.8rem;
  font-weight:800;
  color:var(--text);
  background:transparent;
  text-transform:uppercase;
  user-select:none;
}
.tile.filled{border-color:var(--tile-filled-border);}
.tile.pop{animation:pop .1s ease;}
.tile.correct{background:var(--tile-correct); border-color:var(--tile-correct);}
.tile.present{background:var(--tile-present); border-color:var(--tile-present);}
.tile.absent{background:var(--tile-absent); border-color:var(--tile-absent);}
.tile.flip{animation:flip .5s ease forwards;}
.board-row.shake{animation:shake .4s ease;}
.tile.win-bounce{animation:bounce .55s ease;}

@keyframes pop{0%{transform:scale(1);}40%{transform:scale(1.08);}100%{transform:scale(1);}}
@keyframes flip{
  0%{transform:rotateX(0);}
  50%{transform:rotateX(90deg);}
  50.01%{transform:rotateX(90deg);}
  100%{transform:rotateX(0);}
}
@keyframes shake{
  10%,90%{transform:translateX(-2px);}
  20%,80%{transform:translateX(4px);}
  30%,50%,70%{transform:translateX(-8px);}
  40%,60%{transform:translateX(8px);}
}
@keyframes bounce{
  0%,100%{transform:translateY(0);}
  30%{transform:translateY(-16px);}
  50%{transform:translateY(0);}
  70%{transform:translateY(-8px);}
}

/* ---------- LEGEND ---------- */
.legend{
  margin:14px;
  background:var(--panel-bg);
  border-radius:var(--radius-m);
  padding:14px 16px;
}
.legend-title{margin:0 0 10px; font-weight:700; font-size:.88rem;}
.legend-items{display:flex; flex-direction:column; gap:8px;}
.legend-item{display:flex; align-items:flex-start; gap:10px; font-size:.82rem; color:var(--text-dim); line-height:1.35;}
.swatch{width:20px;height:20px;border-radius:5px;flex-shrink:0; margin-top:1px;}
.swatch.correct{background:var(--tile-correct);}
.swatch.present{background:var(--tile-present);}
.swatch.absent{background:var(--tile-absent);}

/* ---------- HINT BUTTON ---------- */
.tile.hint{
  border-color:#e8b93a;
  box-shadow:inset 0 0 0 2px #e8b93a;
}
.hint-area{
  padding:6px 14px 14px;
  display:flex;
  justify-content:center;
}
.btn-hint{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--key-bg);
  color:var(--text);
  border:none;
  border-radius:999px;
  padding:12px 26px;
  font-weight:700;
  font-size:.92rem;
  cursor:pointer;
  transition:background .12s ease, transform .08s ease, opacity .12s ease;
}
.btn-hint svg{width:20px; height:20px; color:#e8b93a;}
.btn-hint:active{transform:scale(.95);}
.btn-hint:hover{background:var(--key-bg-hover);}
.btn-hint:disabled{
  opacity:.45;
  cursor:default;
  transform:none;
}

.footer{
  text-align:center;
  font-size:.72rem;
  color:var(--text-dim);
  margin:0 0 18px;
}

/* ---------- TOAST ---------- */
.toast{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%) translateY(-20px);
  background:#fff;
  color:#111;
  font-weight:700;
  font-size:.88rem;
  padding:10px 18px;
  border-radius:8px;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease, transform .2s ease;
  z-index:999;
  box-shadow:0 6px 20px rgba(0,0,0,.35);
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

/* ---------- OVERLAY / DRAWER ---------- */
.overlay{
  position:fixed; inset:0;
  background:rgba(0,0,0,.55);
  opacity:0; pointer-events:none;
  transition:opacity .2s ease;
  z-index:50;
}
.overlay.show{opacity:1; pointer-events:auto;}

.drawer{
  position:fixed; top:0; left:0; bottom:0;
  width:82%; max-width:320px;
  background:var(--panel-bg-2);
  transform:translateX(-105%);
  transition:transform .25s ease;
  z-index:60;
  padding-top:env(safe-area-inset-top);
  display:flex; flex-direction:column;
  box-shadow:4px 0 24px rgba(0,0,0,.4);
}
.drawer.show{transform:translateX(0);}
.drawer-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 16px;
  font-weight:800;
  font-size:1.05rem;
  border-bottom:1px solid var(--overlay-hover-1);
}
.drawer-section-title{
  margin:18px 12px 8px;
  font-weight:700;
  font-size:.82rem;
  color:var(--text-dim);
  text-transform:uppercase;
  letter-spacing:.04em;
}
.lang-list{padding:12px; display:flex; flex-direction:column; gap:8px;}
.lang-option{
  display:flex; align-items:center; gap:12px;
  background:var(--panel-bg);
  border:2px solid transparent;
  border-radius:12px;
  padding:12px 14px;
  color:var(--text);
  cursor:pointer;
  text-align:left;
}
.lang-option.active{border-color:var(--accent-green);}
.lang-flag{font-size:1.5rem;}
.lang-info{display:flex; flex-direction:column; flex:1;}
.lang-info strong{font-size:.95rem;}
.lang-info small{color:var(--text-dim); font-size:.75rem;}
.lang-check{opacity:0; color:var(--accent-green); font-weight:800;}
.lang-option.active .lang-check{opacity:1;}

.theme-toggle{
  display:flex;
  gap:8px;
  padding:0 12px 16px;
}
.theme-option{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  background:var(--panel-bg);
  border:2px solid transparent;
  border-radius:12px;
  padding:10px 8px;
  color:var(--text);
  font-weight:700;
  font-size:.85rem;
  cursor:pointer;
}
.theme-option.active{border-color:var(--accent-green);}

/* ---------- MODALS ---------- */
.modal{
  position:fixed;
  top:50%; left:50%;
  transform:translate(-50%,-50%) scale(.95);
  background:var(--panel-bg-2);
  width:90%; max-width:380px;
  max-height:82vh;
  overflow-y:auto;
  border-radius:var(--radius-l);
  padding:24px 22px;
  opacity:0; pointer-events:none;
  transition:opacity .2s ease, transform .2s ease;
  z-index:70;
}
.modal.show{opacity:1; pointer-events:auto; transform:translate(-50%,-50%) scale(1);}
.modal h2{margin:0 0 16px; text-align:center; font-size:1.2rem;}
.modal-close{
  position:absolute; top:14px; right:14px;
  background:none; border:none; color:var(--text-dim);
  font-size:1.1rem; cursor:pointer;
  width:32px;height:32px;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:6px;
  text-align:center;
  margin-bottom:20px;
}
.stat-num{font-size:1.6rem; font-weight:800;}
.stat-label{font-size:.62rem; color:var(--text-dim); line-height:1.2; margin-top:4px;}

.dist-title{font-weight:700; font-size:.85rem; margin:0 0 10px;}
.dist-chart{display:flex; flex-direction:column; gap:5px; margin-bottom:6px;}
.dist-row{display:flex; align-items:center; gap:8px; font-size:.78rem;}
.dist-num{width:14px; color:var(--text-dim); flex-shrink:0;}
.dist-bar-wrap{flex:1; background:var(--overlay-hover-2); border-radius:4px; overflow:hidden;}
.dist-bar{
  background:var(--key-bg);
  color:#fff;
  font-weight:700;
  font-size:.76rem;
  text-align:right;
  padding:3px 8px;
  min-width:22px;
  border-radius:4px;
  white-space:nowrap;
}
.dist-bar.win{background:var(--tile-correct);}

.help-list{margin:0 0 16px; padding-left:20px; display:flex; flex-direction:column; gap:10px; font-size:.87rem; line-height:1.4; color:var(--text-dim);}
.help-list li::marker{color:var(--accent-green); font-weight:800;}
.help-example{display:flex; gap:6px; justify-content:center;}
.help-example .tile{width:38px; height:38px; font-size:1.1rem; aspect-ratio:unset;}

@media (max-height:700px){
  .infobar{padding:12px;}
  .board{max-width:300px;}
  .btn-hint{padding:10px 22px;}
}