:root {
    --bg: #ffffff;
    --side: #888888;
    --accent: #bbbbbb;
    --gold: #000000;
    --green: #98a99e;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    display: flex;
    height: 100vh;
    background: var(--bg);
    color: white;
    overflow: hidden;
}

/* SIDEBAR */
.sidebar {
    width: 220px;
    background: var(--side);
    display: flex;
    flex-direction: column;
    padding: 20px;
    border-right: 1px solid #1e293b;
    z-index: 100;
}

.logo {
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.nav-btn {
    background: transparent;
    border: 1px solid #334155;
    color: #94a3b8;
    padding: 12px;
    margin-bottom: 12px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-btn:hover, .nav-btn.active {
    background: var(--accent);
    color: #020617;
    border-color: var(--accent);
    font-weight: bold;
}

/* MAIN CONTAINER & BLUR */
.main-container {
    display: flex;
    flex: 1;
    transition: filter 0.3s ease;
}

.blur-effect {
    filter: blur(1px) brightness(1);
}

.content-section {
    display: none;
    flex-direction: column;
    align-items: center;
    padding: 50px;
    height: 100%;
    overflow-y: auto;
}

.content-section.active {
    display: flex;
}

#counter {
    font-size: 64px;
    font-weight: 800;
    color: var(--gold);
    text-shadow: 0 0 20px rgba(251, 191, 36, 0.2);
}

#stats-bar {
    background: #1e293b;
    padding: 8px 20px;
    border-radius: 20px;
    margin: 20px 0;
}

.btn-main {
    width: 200px;
    height: 200px;
    border-radius: 100%;
    border: none;
    background: radial-gradient(circle, var(--green), #16a34a);
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 10px 0 #15803d;
    transition: transform 0.05s;
}

.btn-main:active {
    transform: translateY(5px);
    box-shadow: 0 5px 0 #15803d;
}

/* UPGRADES */
.upgrades-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
    width: 100%;
    max-width: 900px;
    margin-top: 30px;
}

.upgrade-card {
    background: #1e293b;
    padding: 15px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid #334155;
    cursor: pointer;
}

.upgrade-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.8);
}

/* --------------------------------------PARTICLES-------------------------------------*/
.particle {
    position: fixed;
    width: 40px;
    height: 40px;
    pointer-events: none;
    background-size: contain;
    background-repeat: no-repeat;
    animation: pop 0.8s forwards;
}

@keyframes pop {
    0% {
        transform: translate(0, 0) scale(0.5);
        opacity: 1;
    }
    100% {
        transform: translate(var(--x), var(--y)) scale(1.2);
        opacity: 0;
    }
}

@keyframes floatUp {
    0% { transform: translateY(0) scale(1); opacity: 1; }
    100% { transform: translateY(-120px) scale(1.2); opacity: 0; }
}
#rebirth-mult {
    margin-top: 10px;
    color: var(--accent);
    font-weight: bold;
}

#rebirth-info {
    margin: 20px 0;
    background: #1e293b;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
}

.btn {
    padding: 15px 25px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
}

.rebirth-btn {
    background: var(--gold);
    color: black;
}

.conquista {
    display: flex;
    align-items: center;
    background: #1e293b;
    border-radius: 10px;
    padding: 10px;
    margin: 8px 0;
    gap: 15px;
    border: 1px solid #334155;
}

.conquista img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
}

.conquista-textos {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.conquista-textos b {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.conquista-textos p {
    font-size: 0.9rem;
    color: #94a3b8;
    margin: 0;
}
.stats-box {
    background: #1e293b;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #334155;
    margin-top: 15px;
}

.stats-box p {
    margin: 10px 0;
    font-size: 1.1rem;
} 
.click-img {
    width: 200px;
    cursor: pointer;
    transition: transform 0.08s ease;
    user-select: none;
}

.enemy-ui {
    width: 300px;
    margin-top: 10px;
    text-align: center;
}

.enemy-name {
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--accent);
}

.health-bar {
    width: 100%;
    height: 18px;
    background: #1e293b;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #334155;
}

.health-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #ef4444, #dc2626);
    transition: width 0.2s ease;
}

.enemy-hp {
    font-size: 0.85rem;
    margin-top: 4px;
    color: #94a3b8;
}


.game-layout {
    display: flex;
    width: 100%;
    height: 100%;
}

.game-center {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/*LOJAAAAAAAAAAAAAA */
.shop-side {
    width: 300px;
    background: #020617;
    border-left: 1px solid #1e293b;
    padding: 15px;
    
    display: flex;
    flex-direction: column;
}


#shop {
    overflow-y: auto;
    flex: 1;

    margin-top: 10px;
}

#shop::-webkit-scrollbar {
    width: 6px;
}

#shop::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 10px;
}
/* área central Inimigus */
.center-content {
    position: relative;
    flex: 1;
    overflow: hidden;
}

.center-content::before {
    content: "";
    position: absolute;
    inset: 0;

    background-image: url("tunel.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    filter: brightness(0.4); 
    
    z-index: 0;
}

.center-content > * {
    position: relative;
    z-index: 1;
}

.content-section {
    background: transparent;
}