* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { width: 100%; height: 100%; overflow: hidden; background: #0a1428; color: #fff; font-family: 'Segoe UI', system-ui, sans-serif; user-select: none; }
canvas { position: absolute; inset: 0; display: block; cursor: crosshair; }

#backBtn {
    position: fixed; top: 12px; left: 12px; z-index: 50;
    color: #aaa; text-decoration: none; font-size: 13px; font-weight: 700;
    padding: 6px 12px; border-radius: 6px; background: rgba(0,0,0,0.4);
}
#backBtn:hover { color: #fff; background: rgba(0,0,0,0.6); }

.hidden { display: none !important; }

#hud {
    position: fixed; top: 12px; left: 50%; transform: translateX(-50%);
    background: rgba(15, 25, 45, 0.85); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 10px;
    padding: 10px 14px; display: flex; gap: 18px; align-items: center;
    z-index: 30; font-size: 14px; font-weight: 700;
}
.hud-stat { display: flex; flex-direction: column; align-items: center; min-width: 50px; }
.hud-stat .lbl { font-size: 9px; opacity: 0.55; letter-spacing: 1.5px; font-weight: 600; }
.hud-stat span:last-child { font-size: 18px; }
#hud button {
    background: #2a8844; border: none; color: #fff;
    padding: 8px 14px; border-radius: 6px; cursor: pointer;
    font-weight: 700; font-size: 13px; letter-spacing: 0.5px;
}
#hud button:hover { background: #34a554; }
#hud button:disabled { background: #444; cursor: not-allowed; opacity: 0.6; }
#speedBtn { background: #4466aa !important; }
#speedBtn:hover { background: #5577cc !important; }
#startWaveBtn.skip { background: #cc7733 !important; }
#startWaveBtn.skip:hover { background: #dd8844 !important; }
#nextWaveBox { min-width: 70px; }
#nextWaveEl { color: #ffcc44; font-size: 14px !important; letter-spacing: 0.5px; }

#abilityBar {
    position: fixed; left: 12px; bottom: 12px;
    background: rgba(15, 25, 45, 0.85); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 10px;
    padding: 8px; display: flex; gap: 8px; z-index: 30;
}
.ability-btn {
    background: rgba(60, 40, 30, 0.7); border: 1px solid rgba(255,170,80,0.4);
    color: #ffcc88; padding: 8px 14px; border-radius: 6px; cursor: pointer;
    font-weight: 700; font-size: 11px; letter-spacing: 1px;
    display: flex; flex-direction: column; align-items: center; min-width: 70px;
    position: relative; overflow: hidden;
}
.ability-btn:hover:not(:disabled) { background: rgba(80, 55, 40, 0.85); border-color: rgba(255,200,100,0.7); }
.ability-btn:disabled { opacity: 0.55; cursor: not-allowed; }
.ability-btn .ab-name { font-size: 13px; color: #ffcc44; }
.ability-btn .ab-cost { font-size: 10px; opacity: 0.7; margin-top: 2px; }
.ability-btn .ab-cd {
    position: absolute; left: 0; right: 0; bottom: 0;
    height: 3px; background: #ffcc44; transform-origin: left; transform: scaleX(0);
    transition: transform 0.1s linear;
}
#nukeBtn { border-color: rgba(255,80,80,0.4); }
#nukeBtn .ab-name { color: #ff6666; }
#freezeBtn { border-color: rgba(120,200,255,0.4); }
#freezeBtn .ab-name { color: #88ccff; }

#towerPanel {
    position: fixed; right: 10px; top: 64px; bottom: 64px;
    background: rgba(15, 25, 45, 0.9); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 10px;
    padding: 8px; display: flex; flex-direction: column; gap: 5px; z-index: 30;
    width: 200px; max-width: 200px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.25) transparent;
}
#towerPanel::-webkit-scrollbar { width: 6px; }
#towerPanel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.25); border-radius: 3px; }
#towerPanel::-webkit-scrollbar-track { background: transparent; }
#towerPanel .panel-title { position: sticky; top: 0; background: rgba(15,25,45,0.95); padding: 4px 0 6px; margin: -4px 0 2px; z-index: 1; }
.panel-title { font-size: 11px; opacity: 0.5; letter-spacing: 2px; text-align: center; margin-bottom: 4px; }
.tower-btn {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 7px; padding: 6px 8px; color: #fff; cursor: pointer;
    text-align: left; transition: all .15s; line-height: 1.25;
}
.tower-btn:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.25); }
.tower-btn.active { background: rgba(80,160,255,0.25); border-color: #5599ff; }
.tower-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.tw-name { font-weight: 800; font-size: 12px; }
.tw-cost { font-size: 11px; color: #ffcc44; font-weight: 700; }
.tw-desc { font-size: 9px; opacity: 0.55; margin-top: 1px; line-height: 1.2; }

/* Category tabs in build panel */
.cat-tabs { position: sticky; top: 22px; display: flex; gap: 3px; padding: 0 0 6px; background: rgba(15,25,45,0.95); z-index: 1; }
.cat-tab { flex: 1; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); color: rgba(255,255,255,0.6); font-size: 9px; font-weight: 800; letter-spacing: 1px; padding: 5px 0; border-radius: 5px; cursor: pointer; }
.cat-tab:hover { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.85); }
.cat-tab.active { background: rgba(80,160,255,0.22); border-color: #5599ff; color: #cfe2ff; }
.cat-section { display: flex; flex-direction: column; gap: 5px; }
.trap-btn { border-color: rgba(255,160,80,0.35); }
.trap-btn:hover { background: rgba(255,140,60,0.14); border-color: rgba(255,180,90,0.6); }
.water-btn { border-color: rgba(80,170,230,0.45); }
.water-btn:hover { background: rgba(60,130,210,0.18); border-color: rgba(100,190,250,0.7); }
.trap-btn .tw-name { color: #ffb066; }

#upgradePanel {
    position: fixed; left: 12px; top: 50%; transform: translateY(-50%);
    background: rgba(15, 25, 45, 0.9); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 10px;
    padding: 12px; display: flex; flex-direction: column; gap: 6px; z-index: 30;
    min-width: 170px;
}
#upgradeName { font-size: 16px; font-weight: 800; text-align: center; }
#upgradeStats { font-size: 11px; opacity: 0.7; text-align: center; margin-bottom: 4px; line-height: 1.5; }
#upgradePanel button {
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px; padding: 7px; color: #fff; cursor: pointer;
    font-weight: 700; font-size: 12px; transition: all .15s;
}
#upgradePanel button:hover:not(:disabled) { background: rgba(255,255,255,0.15); }
#upgradePanel button:disabled { opacity: 0.4; cursor: not-allowed; }
#sellBtn { background: rgba(255,80,80,0.15) !important; border-color: rgba(255,80,80,0.3) !important; margin-top: 4px; }
#sellBtn:hover { background: rgba(255,80,80,0.3) !important; }
.ghost { background: transparent !important; opacity: 0.6; font-size: 11px !important; padding: 4px !important; }

/* Overlay screens */
#overlay, #gameOverOverlay {
    position: fixed; inset: 0; z-index: 100;
    background:
        radial-gradient(900px 600px at 50% -10%, rgba(124,58,237,0.18), transparent 60%),
        radial-gradient(700px 500px at 100% 100%, rgba(236,72,153,0.12), transparent 60%),
        linear-gradient(180deg, #0a0f1f, #07091a);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 24px;
    overflow-y: auto;
}
#overlay.visible, #gameOverOverlay.visible { display: flex; }
#overlay.hidden, #gameOverOverlay.hidden { display: none; }

#overlay h1, #gameOverOverlay h1 {
    font-size: 76px; font-weight: 900; letter-spacing: 8px;
    background: linear-gradient(135deg, #f0f4ff 0%, #c4b5fd 50%, #f0abfc 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    margin: 0 0 4px;
    text-shadow: 0 0 60px rgba(167,139,250,0.25);
}
#gameOverOverlay h1 { font-size: 56px; letter-spacing: 6px; }
.tagline { font-size: 15px; opacity: 0.7; margin: 0 0 4px; font-weight: 500; letter-spacing: 0.3px; }
.controls { font-size: 11px; opacity: 0.4; margin: 0 0 24px; letter-spacing: 1.5px; text-transform: uppercase; }

#menuButtons {
    display: flex; gap: 10px; margin-bottom: 18px;
}
#menuButtons button, #gameOverOverlay button {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff; padding: 11px 28px; font-size: 14px;
    font-weight: 700; letter-spacing: 2px; border-radius: 10px;
    cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
    box-shadow: 0 4px 14px rgba(99,102,241,0.3);
}
#menuButtons button.secondary {
    background: rgba(255,255,255,0.04);
    border-color: rgba(255,255,255,0.1);
    box-shadow: none;
}
#menuButtons button:hover, #gameOverOverlay button:not(.ghost):hover {
    transform: translateY(-1px); box-shadow: 0 8px 22px rgba(99,102,241,0.4);
}
#gameOverOverlay button.ghost { background: transparent !important; box-shadow: none; font-size: 13px; padding: 6px 16px; opacity: 0.5; border: none; }
#gameOverOverlay button.ghost:hover { opacity: 1; }

#modeSelector {
    display: flex; gap: 6px; flex-wrap: wrap; justify-content: center;
    max-width: 560px; margin: 4px auto 0;
}
.mode-btn {
    background: rgba(255,255,255,0.03);
    color: rgba(255,255,255,0.55);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 7px;
    padding: 6px 14px;
    font-size: 11px; font-weight: 700; letter-spacing: 1.2px;
    cursor: pointer;
    transition: all .15s;
}
.mode-btn:hover { background: rgba(255,255,255,0.06); color: #fff; }
.mode-btn.active {
    background: rgba(139,92,246,0.18);
    color: #e9d5ff;
    border-color: rgba(139,92,246,0.4);
}
#modeDesc {
    margin-top: 10px;
    font-size: 12px;
    color: rgba(255,255,255,0.42);
    max-width: 420px;
    line-height: 1.5;
}
#currentMapInfo {
    margin-top: 14px;
    font-size: 11px;
    color: rgba(255,255,255,0.4);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
#currentMapName { color: #fbbf24; font-weight: 700; }

#hsBox {
    margin-top: 22px;
    padding: 18px 26px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    min-width: 360px;
    backdrop-filter: blur(8px);
}
.hs-row {
    display: flex; gap: 28px; justify-content: center; align-items: flex-start;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    margin-bottom: 10px;
}
.hs-cell { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.hs-label { font-size: 9px; letter-spacing: 2px; opacity: 0.4; font-weight: 700; }
.hs-num { font-size: 30px; font-weight: 900; color: #fbbf24; line-height: 1.1; }
.hs-num.small { font-size: 20px; color: #67e8f9; }
.hs-cell:nth-child(3) .hs-num { color: #c4b5fd; }
#popXpLine { font-size: 9px; color: rgba(255,255,255,0.4); letter-spacing: 1px; }
#popLevelBar { height: 4px; background: rgba(255,255,255,0.06); border-radius: 2px; overflow: hidden; margin: 0 auto 12px; max-width: 240px; }
#popLevelFill { height: 100%; background: linear-gradient(90deg, #8b5cf6, #ec4899); width: 0%; transition: width .4s; }
#popChalLine { font-size: 10px; color: rgba(255,255,255,0.45); margin-bottom: 10px; letter-spacing: 0.5px; }
#popChalLine .sep { margin: 0 8px; opacity: 0.3; }
.hs-buttons { display: flex; gap: 6px; justify-content: center; }
.hs-buttons button {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.85);
    padding: 6px 12px;
    border-radius: 7px;
    font-weight: 700; font-size: 10px; letter-spacing: 1px;
    cursor: pointer;
    transition: all .15s;
}
.hs-buttons button:hover { background: rgba(255,255,255,0.08); }
#popDailyBtn {
    background: linear-gradient(135deg, rgba(245,158,11,0.2), rgba(220,38,38,0.2)) !important;
    border-color: rgba(245,158,11,0.3) !important;
    color: #fbbf24 !important;
}

#hsValue { font-size: 36px; font-weight: 900; color: #ffcc44; }
#bestRound { font-size: 22px; font-weight: 800; color: #44ddff; }

#goRound { font-size: 22px; margin-top: 8px; }
#goScore { font-size: 18px; opacity: 0.85; margin-top: 4px; }
#goNew { color: #ffcc44; font-weight: 800; margin-top: 8px; min-height: 22px; }

/* ========== 1v1 mode ========== */
#vsLobby {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(8,5,16,0.95);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    color: #fff; font-family: "Segoe UI", sans-serif;
}
#vsLobby.hidden { display: none; }
#vsLobby h1 {
    font-size: 64px; font-weight: 900; letter-spacing: 4px;
    background: linear-gradient(135deg, #ff66bb, #ffcc44, #44ddff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    margin-bottom: 16px;
}
#vsStatus { font-size: 18px; opacity: 0.85; margin-bottom: 24px; }
#vsLobby .spinner {
    width: 56px; height: 56px;
    border: 4px solid rgba(255,255,255,0.15);
    border-top-color: #ff66bb;
    border-radius: 50%;
    animation: vsSpin 0.9s linear infinite;
    margin-bottom: 32px;
}
@keyframes vsSpin { to { transform: rotate(360deg); } }
#vsLobby button {
    background: transparent; border: 1px solid rgba(255,255,255,0.3);
    color: #fff; padding: 10px 28px; font-size: 13px; letter-spacing: 2px;
    border-radius: 8px; cursor: pointer; opacity: 0.7;
}
#vsLobby button:hover { opacity: 1; border-color: #ff66bb; }

#oppView {
    position: fixed; top: 14px; right: 14px; z-index: 50;
    width: 300px; background: rgba(8,5,16,0.85);
    border: 1px solid rgba(255,102,187,0.4);
    border-radius: 10px; padding: 8px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.5);
    font-family: "Segoe UI", sans-serif; color: #fff;
}
#oppView.hidden { display: none; }
#oppHeader {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 4px 6px; font-size: 12px; font-weight: 700; letter-spacing: 1px;
}
#oppHeader #oppName { color: #ff99cc; }
#oppHeader #oppLives { color: #44ff88; font-weight: 800; }
#oppCanvas {
    width: 100%; height: 168px; background: #0a0512;
    border-radius: 6px; display: block;
}

/* In 1v1 mode the opp mini-view occupies top-right (~220px tall);
   push the tower build panel down so the buy buttons remain visible. */
body.mp-active #towerPanel {
    top: 230px;
    bottom: 12px;
    max-height: none;
    transform: none;
    overflow-y: auto;
}
body.mp-active .tower-btn { padding: 5px 8px; }
body.mp-active .tower-btn .tw-desc { display: none; }
/* Send-attack panel: move to bottom-center horizontal bar so it never
   covers the right-side tower panel. */
body.mp-active #sendPanel {
    bottom: 12px;
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    flex-direction: row;
    align-items: center;
    gap: 8px;
}
body.mp-active #sendPanel .panel-title {
    margin: 0 8px 0 0;
    text-align: left;
    white-space: nowrap;
}
body.mp-active #sendPanel .send-btn {
    min-width: 92px;
    padding: 6px 10px;
}

#sendPanel {
    position: fixed; bottom: 14px; right: 14px; z-index: 50;
    background: rgba(8,5,16,0.85);
    border: 1px solid rgba(255,80,80,0.5);
    border-radius: 10px; padding: 10px;
    display: flex; flex-direction: column; gap: 6px;
    font-family: "Segoe UI", sans-serif; color: #fff;
    width: 160px;
}
#sendPanel.hidden { display: none; }
#sendPanel .panel-title {
    font-size: 11px; font-weight: 800; letter-spacing: 2px;
    color: #ff8866; text-align: center; margin-bottom: 4px;
}
.send-btn {
    background: linear-gradient(135deg, rgba(255,80,80,0.2), rgba(255,140,80,0.15));
    border: 1px solid rgba(255,120,120,0.3);
    color: #fff; padding: 6px 8px; border-radius: 6px;
    cursor: pointer; text-align: left;
    display: flex; justify-content: space-between; align-items: center;
    font-family: inherit;
    transition: transform .1s, border-color .1s, background .1s;
}
.send-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    border-color: #ff8866;
    background: linear-gradient(135deg, rgba(255,80,80,0.35), rgba(255,140,80,0.25));
}
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.sb-name { font-size: 12px; font-weight: 700; }
.sb-cost { font-size: 11px; color: #ffcc44; font-weight: 800; }

/* ===== Tower sight indicators ===== */
.tower-btn { position: relative; padding-right: 36px; }
.tw-sight {
    position: absolute; top: 8px; right: 8px;
    display: flex; flex-direction: column; gap: 4px;
}
.tw-sight i {
    display: block; width: 14px; height: 14px; border-radius: 50%;
    box-shadow: 0 0 6px rgba(255,255,255,0.15);
    position: relative; overflow: hidden;
}
/* Camo sight: dark green with stripes */
.tw-sight i.camo {
    background: #44dd44;
}
.tw-sight i.camo::before {
    content: ""; position: absolute; inset: 0;
    background: repeating-linear-gradient(0deg,
        rgba(40,70,30,0.85) 0 2px, transparent 2px 4px);
}
/* Lead sight: gray with metallic ring */
.tw-sight i.lead {
    background: radial-gradient(circle at 35% 30%, #cccccc, #555566 70%);
    border: 1.5px solid #cccccc;
}
/* Pulse to draw the eye */
.tw-sight i { animation: sightPulse 2.4s ease-in-out infinite; }
@keyframes sightPulse {
    0%, 100% { transform: scale(1); filter: brightness(1); }
    50%      { transform: scale(1.15); filter: brightness(1.25); }
}

/* Tower panel: improved look */
#towerPanel {
    background: linear-gradient(180deg, rgba(20,30,55,0.92), rgba(10,18,38,0.92));
    border: 1px solid rgba(120,160,255,0.18);
    box-shadow: 0 8px 28px rgba(0,0,0,0.5),
                inset 0 1px 0 rgba(255,255,255,0.06);
    min-width: 200px;
}
.tower-btn {
    background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
    transition: transform .12s, background .15s, border-color .15s, box-shadow .15s;
}
.tower-btn:hover:not(:disabled) {
    transform: translateX(-2px);
    box-shadow: -2px 4px 14px rgba(80,160,255,0.2);
}
.tower-btn.active {
    background: linear-gradient(135deg, rgba(80,160,255,0.32), rgba(120,80,220,0.18));
    border-color: #88aaff;
    box-shadow: 0 0 14px rgba(120,160,255,0.4), inset 0 0 12px rgba(80,160,255,0.15);
}
.tw-name {
    background: linear-gradient(135deg, #fff, #cce0ff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    letter-spacing: 1px;
}

/* === Targeting mode buttons === */
.tgt-btn{flex:1;min-width:42px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.12);color:rgba(255,255,255,0.7);font-size:10px;font-weight:700;letter-spacing:1px;padding:5px 4px;border-radius:6px;cursor:pointer;transition:all .12s}
.tgt-btn:hover{background:rgba(255,255,255,0.1)}
.tgt-btn.active{background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff;border-color:rgba(255,255,255,0.25);box-shadow:0 0 10px rgba(168,85,247,0.4)}

/* === Wave-complete banner === */
#waveBanner{position:fixed;top:18%;left:50%;transform:translateX(-50%) scale(0.6);z-index:120;padding:18px 36px;background:linear-gradient(135deg,rgba(245,158,11,0.95),rgba(220,38,38,0.92));border:2px solid rgba(255,255,255,0.4);border-radius:18px;color:#fff;font-weight:900;font-size:28px;letter-spacing:3px;text-align:center;text-shadow:0 2px 6px rgba(0,0,0,0.6);box-shadow:0 12px 40px rgba(245,158,11,0.4),inset 0 0 30px rgba(255,255,255,0.1);opacity:0;pointer-events:none;transition:transform .35s cubic-bezier(.34,1.56,.64,1),opacity .25s}
#waveBanner.show{transform:translateX(-50%) scale(1);opacity:1}
#waveBanner .wb-sub{font-size:14px;letter-spacing:2px;font-weight:700;opacity:0.9;margin-top:6px}

/* === Wave preview popup === */
#wavePreview{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.6);backdrop-filter:blur(4px)}
#wavePreview.hidden{display:none}
#wavePreview .wp-inner{background:linear-gradient(180deg,#1c2945,#0e1830);border:1px solid rgba(120,160,255,0.3);border-radius:16px;padding:24px 28px;min-width:340px;max-width:480px;color:#fff;box-shadow:0 20px 60px rgba(0,0,0,0.6)}
#wavePreview .wp-title{font-size:22px;font-weight:900;letter-spacing:3px;color:#fbbf24;margin-bottom:14px;text-align:center}
#wavePreview .wp-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid rgba(255,255,255,0.06);font-size:13px}
#wavePreview .wp-row:last-child{border-bottom:none}
#wavePreview .wp-tier{display:inline-block;width:14px;height:14px;border-radius:50%;margin-right:8px;vertical-align:middle}
#wavePreview .wp-mod{font-size:10px;color:#fbbf24;font-weight:700;margin-left:6px;letter-spacing:1px}
#wavePreview button{display:block;margin:14px auto 0}

/* === Achievement toasts === */
/* === Achievement / level toasts (minimal, above ability bar) === */
#achToasts{position:fixed;left:12px;bottom:80px;z-index:300;display:flex;flex-direction:column;gap:6px;pointer-events:none;max-width:260px}
.ach-toast{background:rgba(15,25,45,0.92);color:#fff;padding:6px 10px;border-radius:8px;border:1px solid rgba(251,191,36,0.5);box-shadow:0 4px 14px rgba(0,0,0,0.5);font-weight:700;animation:achSlide .25s ease-out,achOut .3s 2.4s forwards;display:flex;gap:8px;align-items:center;font-size:11px;line-height:1.15}
.ach-toast .ach-icon{font-size:16px;flex-shrink:0}
.ach-toast .ach-title{font-size:9px;letter-spacing:1.5px;opacity:0.65;color:#fbbf24}
.ach-toast .ach-name{font-size:11px;font-weight:800;color:#fff}
@keyframes achSlide{from{transform:translateX(-110%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes achOut{to{transform:translateX(-110%);opacity:0}}

/* === Auto-start countdown ring === */
#startWaveBtn.skip{position:relative;overflow:visible}
#startWaveBtn.skip::before{content:'';position:absolute;left:-3px;top:-3px;right:-3px;bottom:-3px;border-radius:inherit;border:2px solid rgba(251,191,36,0.6);box-shadow:0 0 12px rgba(251,191,36,0.5);animation:autoPulse 1s infinite;pointer-events:none}
@keyframes autoPulse{0%,100%{opacity:0.4}50%{opacity:0.9}}

/* === Achievement modal cards === */
.ach-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.1);border-radius:12px;padding:14px;display:flex;gap:10px;align-items:flex-start}
.ach-card.unlocked{background:linear-gradient(135deg,rgba(245,158,11,0.15),rgba(168,85,247,0.1));border-color:rgba(251,191,36,0.4)}
.ach-card .ach-emoji{font-size:32px;filter:grayscale(1);opacity:0.4}
.ach-card.unlocked .ach-emoji{filter:none;opacity:1}
.ach-card h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:4px}
.ach-card.unlocked h4{color:#fbbf24}
.ach-card p{font-size:11px;color:rgba(255,255,255,0.5);line-height:1.4}

/* === Fortified bubble overlay === */
@keyframes fortPulse{0%,100%{filter:brightness(1)}50%{filter:brightness(1.3)}}