*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --forest-dark:  #0d2b18;
    --forest-mid:   #1a4d2e;
    --forest-bright:#2d7a45;
    --forest-light: #52b469;
    --leaf:         #7ed957;
    --mist:         #b8f0c8;
    --gold:         #f5c842;
    --gold-dark:    #c8960a;
    --red:          #e85535;
    --red-dark:     #a82810;
    --white:        #f0fff4;
    --shadow:       rgba(0,0,0,0.35);
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--forest-dark);
    font-family: 'Nunito', sans-serif;
    color: var(--white);
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
}

/* ── BACKGROUND ───────────────────────────────────────────── */
#bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 80%, #0d3d1a 0%, transparent 55%),
        radial-gradient(ellipse at 80% 20%, #153822 0%, transparent 50%),
        linear-gradient(160deg, #0a1f10 0%, #1a4428 50%, #0d2b18 100%);
    z-index: 0;
}

.fireflies {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.firefly {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #ccff88;
    border-radius: 50%;
    box-shadow: 0 0 6px 3px rgba(160,255,80,0.6);
    animation: flyAnim var(--dur) ease-in-out infinite var(--delay);
    opacity: 0;
}
@keyframes flyAnim {
    0%   { opacity: 0; transform: translate(0,0); }
    20%  { opacity: 1; }
    80%  { opacity: 0.8; }
    100% { opacity: 0; transform: translate(var(--tx), var(--ty)); }
}

/* ── SCREENS ──────────────────────────────────────────────── */
.screen {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    gap: 18px;
    padding: 20px;
}
.screen.hidden { display: none !important; }

/* ── START SCREEN ─────────────────────────────────────────── */
.logo-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}
.logo-frog {
    filter: drop-shadow(0 6px 12px rgba(0,200,80,0.5));
    animation: floatLogo 2.5s ease-in-out infinite;
}
@keyframes floatLogo {
    0%,100% { transform: translateY(0) rotate(-5deg); }
    50%      { transform: translateY(-10px) rotate(5deg); }
}
.logo-title {
    font-family: 'Titan One', cursive;
    font-size: 52px;
    line-height: 1.05;
    color: var(--leaf);
    text-shadow: 3px 3px 0 var(--forest-dark), 5px 5px 0 rgba(0,0,0,0.3);
}
.logo-title span {
    color: var(--gold);
    text-shadow: 3px 3px 0 var(--gold-dark), 5px 5px 0 rgba(0,0,0,0.3);
}
.tagline {
    font-size: 16px;
    font-weight: 700;
    color: var(--mist);
    opacity: 0.75;
    text-align: center;
    max-width: 280px;
}
.best-wrap {
    font-size: 18px;
    font-weight: 900;
    color: var(--gold);
    background: rgba(0,0,0,0.3);
    border: 2px solid rgba(245,200,66,0.35);
    border-radius: 50px;
    padding: 6px 24px;
}

.btn {
    font-family: 'Titan One', cursive;
    font-size: 26px;
    letter-spacing: 1px;
    border: none;
    border-radius: 50px;
    padding: 14px 52px;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}
.btn-play {
    background: linear-gradient(145deg, var(--leaf) 0%, var(--forest-bright) 100%);
    color: var(--forest-dark);
    box-shadow: 0 6px 0 var(--forest-dark), 0 10px 28px rgba(80,200,80,0.3);
}

.btn-play:active { transform: translateY(4px);  box-shadow: 0 2px 0 var(--forest-dark); }

.btn-home {
    background: transparent;
    color: rgba(255,255,255,0.45);
    border: 2px solid rgba(255,255,255,0.18);
    font-size: 18px;
    padding: 10px 36px;
    box-shadow: none;
}

.btn-home:active { transform: translateY(2px); }

.how-to {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 16px;
    padding: 14px 24px;
    backdrop-filter: blur(8px);
}
.how-item { font-size: 14px; font-weight: 700; color: var(--mist); }

/* ── GAME SCREEN ──────────────────────────────────────────── */
#gameScreen {
    justify-content: flex-start;
    gap: 0;
    padding: 0;
}

.hud {
    width: 100%;
    max-width: 560px;
    display: flex;
    align-items: center;
    padding: 10px 18px 8px;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid rgba(126,217,87,0.2);
    flex-shrink: 0;
    z-index: 20;
}
.hud-cell { display: flex; flex-direction: column; align-items: flex-start; min-width: 70px; }
.hud-center { flex: 1; align-items: center; }
.hud-right  { align-items: flex-end; }
.hud-label  { font-size: 10px; font-weight: 900; letter-spacing: 2px; text-transform: uppercase; color: var(--leaf); opacity: 0.7; }
.hud-val    { font-family: 'Titan One', cursive; font-size: 26px; color: var(--white); line-height: 1; }
.hud-val.big { font-size: 32px; color: var(--gold); }

.timer-wrap { display: flex; flex-direction: column; align-items: flex-end; gap: 3px; }
.timer-bar-bg { width: 70px; height: 5px; background: rgba(255,255,255,0.15); border-radius: 3px; overflow: hidden; }
.timer-bar { height: 100%; width: 100%; background: var(--leaf); border-radius: 3px; transition: width 1s linear, background 0.3s; transform-origin: right; }
.timer-bar.warn { background: var(--gold); }
.timer-bar.danger { background: var(--red); }

#gameArea {
    position: relative;
    width: 100%;
    max-width: 560px;
    flex: 1;
    overflow: hidden;
    cursor: crosshair;
}
#bgCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
#objectLayer {
    position: absolute;
    inset: 0;
}

/* ── OBJECTS ──────────────────────────────────────────────── */
.obj {
    position: absolute;
    cursor: pointer;
    transition: transform 0.12s;
    -webkit-user-drag: none;
    user-select: none;
    transform-origin: center bottom;
}

.obj.wrong {
    animation: wrongShake 0.4s ease;
    filter: brightness(1.8) saturate(2) hue-rotate(330deg) !important;
}
@keyframes wrongShake {
    0%,100% { transform: translateX(0) scale(1); }
    20%      { transform: translateX(-8px) scale(1.05); }
    40%      { transform: translateX(8px) scale(1.05); }
    60%      { transform: translateX(-5px); }
    80%      { transform: translateX(5px); }
}
.obj.found {
    animation: foundPop 0.6s cubic-bezier(.36,1.56,.64,1) forwards;
    z-index: 100 !important;
}
@keyframes foundPop {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.6) rotate(15deg); filter: brightness(1.5); }
    100% { transform: scale(1.3) rotate(-5deg); }
}

/* ── TOAST POPUP ──────────────────────────────────────────── */
.toast {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translateX(-50%) scale(0.5);
    background: rgba(0,0,0,0.75);
    color: white;
    font-family: 'Titan One', cursive;
    font-size: 28px;
    padding: 10px 28px;
    border-radius: 50px;
    pointer-events: none;
    opacity: 0;
    white-space: nowrap;
    transition: none;
    z-index: 50;
    backdrop-filter: blur(6px);
}
.toast.pop {
    animation: toastPop 0.9s cubic-bezier(.36,1.56,.64,1) forwards;
}
@keyframes toastPop {
    0%   { opacity: 0;   transform: translateX(-50%) scale(0.5) translateY(10px); }
    30%  { opacity: 1;   transform: translateX(-50%) scale(1.05) translateY(0); }
    70%  { opacity: 1;   transform: translateX(-50%) scale(1) translateY(0); }
    100% { opacity: 0;   transform: translateX(-50%) scale(0.9) translateY(-20px); }
}

/* ── LEVEL BANNER ─────────────────────────────────────────── */
.level-banner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    font-family: 'Titan One', cursive;
    font-size: 52px;
    color: var(--gold);
    text-shadow: 4px 4px 0 var(--forest-dark);
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    white-space: nowrap;
}
.level-banner.show {
    animation: bannerAnim 1.4s cubic-bezier(.36,1.56,.64,1) forwards;
}
@keyframes bannerAnim {
    0%   { opacity: 0; transform: translate(-50%,-50%) scale(0.4); }
    30%  { opacity: 1; transform: translate(-50%,-50%) scale(1.05); }
    70%  { opacity: 1; transform: translate(-50%,-50%) scale(1); }
    100% { opacity: 0; transform: translate(-50%,-50%) scale(1) translateY(-30px); }
}

/* ── RESULT / OVER SCREENS ────────────────────────────────── */
.result-icon { font-size: 80px; animation: floatLogo 2s ease-in-out infinite; }
.result-title {
    font-family: 'Titan One', cursive;
    font-size: 48px;
    color: var(--leaf);
    text-shadow: 3px 3px 0 var(--forest-dark);
}
.result-title.over { color: var(--red); text-shadow: 3px 3px 0 #5a0a00; }

.result-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(126,217,87,0.25);
    border-radius: 16px;
    padding: 16px 36px;
    backdrop-filter: blur(8px);
    text-align: center;
    min-width: 220px;
}
.stat-row { display: flex; justify-content: space-between; gap: 28px; font-size: 18px; font-weight: 700; }
.stat-label { color: var(--mist); opacity: 0.7; }
.stat-val { color: var(--gold); font-family: 'Titan One', cursive; }

.over-score { font-size: 36px; font-family: 'Titan One', cursive; color: var(--white); }
.over-score strong { color: var(--gold); }
.over-best { font-size: 18px; font-weight: 900; color: var(--leaf); }

/* ── PARTICLES ────────────────────────────────────────────── */
.particle {
    position: fixed;
    pointer-events: none;
    border-radius: 50%;
    z-index: 200;
    animation: particleFly var(--dur) ease-out forwards;
}
@keyframes particleFly {
    0%   { opacity: 1; transform: translate(0,0) scale(1); }
    100% { opacity: 0; transform: translate(var(--tx), var(--ty)) scale(0.2); }
}