:root {
    --bg-color: #1a0f0a;
    --panel-bg: #251810;
    --text-color: #d4c3a3;
    --border-color: #4a3828;
    --accent-color: #2a5a2a;
    --accent-hover: #3a7a3a;
    --text-gold: #e8c84a;
    --text-dim: #8a7a6a;
    --font-family: Georgia, 'Times New Roman', serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    height: 100vh;
    overflow: hidden;
    text-shadow: 0 1px 1px rgba(0,0,0,0.5);
}

#game-container {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    grid-template-rows: auto 1fr;
    grid-template-areas: 
        "header header header"
        "left center right";
    height: 100vh;
    gap: 10px;
    padding: 10px;
}

/* TOP: Zone Bar */
/* TOP: Zone Bar */
header {
    grid-area: header;
    background-color: #2a1f18;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    padding: 10px 20px;
    overflow: visible;
    box-shadow: 0 4px 6px rgba(0,0,0,0.4);
}

.zones-container {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    gap: 8px;
    justify-content: center;
}

.zone-indicator {
    flex: 1 1 125px;
    max-width: 200px;
    height: 52px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 0.75rem;
    padding: 4px;
    background-color: #3d2b1f;
    border-radius: 6px;
    font-weight: bold;
    cursor: default;
    border: 2px solid var(--border-color);
    opacity: 0.5;
    color: var(--text-dim);
    flex-shrink: 0;
}

.zone-indicator.unlocked {
    opacity: 1;
    cursor: pointer;
    background-color: #3d2b1f; /* medium brown */
    color: var(--text-color); /* parchment */
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.zone-indicator.unlocked:hover:not(.active) {
    background-color: #251810;
    color: var(--text-gold);
    border-color: #6a5840;
}

.zone-indicator.locked-next {
    opacity: 0.8;
    cursor: pointer;
    border-style: dashed;
    background-color: #3d2b1f;
    color: var(--text-dim);
}

.can-unlock-flash {
    background-color: #ffd700 !important; /* gold */
    color: #333 !important;
    border-color: #ffd700 !important;
    border-style: solid !important;
    animation: gold-strobe 3s ease-in-out infinite !important;
    opacity: 1 !important;
}

.zone-indicator.active {
    border-color: var(--text-gold); /* gold border */
    background-color: #251810; /* dark brown */
    color: var(--text-gold); /* gold text */
    opacity: 1;
    box-shadow: 0 0 8px rgba(232, 200, 74, 0.4);
}

@keyframes gold-strobe {
    0% { background-color: #ffd700; box-shadow: 0 0 5px #ffd700; }
    50% { background-color: #ffb300; box-shadow: 0 0 15px #ffb300; }
    100% { background-color: #ffd700; box-shadow: 0 0 5px #ffd700; }
}
/* PANELS */
aside {
    background-color: var(--panel-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

#left-panel {
    grid-area: left; /* Shop */
}

#right-panel {
    grid-area: right; /* Inventory */
}

h2, h3, h4 {
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
    color: var(--text-gold);
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

/* BUTTONS */
button {
    background-color: #8b6914; /* Brass/bronze button */
    color: #d4c3a3;
    border: 2px solid #4a3828;
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-family: inherit;
    box-shadow: 0 2px 4px rgba(0,0,0,0.5);
    transition: background-color 0.2s, transform 0.1s;
    width: 100%;
    margin-top: 10px;
}

button:hover:not(:disabled) {
    background-color: #a67c1e;
}

button:active:not(:disabled) {
    transform: scale(0.98);
}

button:disabled {
    background-color: #3a3020;
    color: #5a5040;
    opacity: 0.7;
    box-shadow: none;
    cursor: not-allowed;
}

button.sell-btn {
    background-color: var(--accent-color);
    border-color: #4a3828;
    margin-top: 0;
    width: auto;
    padding: 5px 10px;
    font-size: 0.9em;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
button.sell-btn:hover {
    background-color: var(--accent-hover);
}

.sell-all-btn {
    background-color: var(--accent-color);
    color: #d4c3a3;
    border: 2px solid #4a3828;
    padding: 10px 15px;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.5);
    transition: background-color 0.2s, transform 0.1s;
}
.sell-all-btn:hover:not(:disabled) {
    background-color: var(--accent-hover);
}
.sell-all-btn:active:not(:disabled) {
    transform: scale(0.98);
}
.sell-all-btn:disabled {
    background-color: #3a3020;
    color: #5a5040;
    opacity: 0.7;
    box-shadow: none;
    cursor: not-allowed;
}
/* INVENTORY & SHOP BOXES */
.stats-box, .shop-item {
    background-color: #2a1f18; /* Stone background */
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.6);
}

#inventory-list {
    flex-grow: 1;
    margin-bottom: 15px;
}

.ore-entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
    padding: 8px 10px;
    background-color: #2a1f18; /* stone bg */
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
}

.ore-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.sprite-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

/* CSS SHAPES */
.coin {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-color: #ffd700;
    border-radius: 50%;
    border: 3px solid #b8860b;
    box-shadow: inset 0 0 5px rgba(255, 255, 255, 0.5);
}

.ore-placeholder {
    display: inline-block;
    width: 16px;
    height: 16px;
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    box-shadow: inset -2px -2px 4px rgba(0,0,0,0.7);
    flex-shrink: 0;
}

.pickaxe-shape {
    width: 40px;
    height: 40px;
    background-color: transparent;
    position: relative;
    margin: 10px auto;
}
.pickaxe-shape::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 50px;
    background-color: #8d6e63; /* Handle */
    transform: rotate(45deg);
    top: -5px;
    left: 15px;
    border-radius: 5px;
}
.pickaxe-shape::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 12px;
    background-color: var(--pickaxe-color, #aed581); /* Head */
    border-radius: 50% 50% 0 0;
    transform: rotate(45deg);
    top: 5px;
    left: 5px;
}

.goblin-shape {
    width: 24px;
    height: 24px;
    background-color: #558b2f;
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    position: relative;
}
.goblin-shape::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background-color: red;
    top: 12px;
    left: 10px;
    box-shadow: 6px 0 0 red;
}

.dwarf-shape {
    width: 24px;
    height: 24px;
    background-color: #1e88e5;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    position: relative;
}
.dwarf-shape::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 6px;
    background-color: #ffd180; /* orange beard */
    bottom: 4px;
    left: 8px;
    border-radius: 0 0 4px 4px;
}

.drill-shape {
    width: 24px;
    height: 24px;
    background-color: #757575;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    position: relative;
}
.drill-shape::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 12px;
    background-color: #e0e0e0;
    top: 6px;
    left: 9px;
    clip-path: polygon(50% 100%, 0% 0%, 100% 0%); /* pointed drill tip */
}

/* BACKGROUND MINERS & PILES */
#miner-piles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.bg-pile {
    position: absolute;
    width: 40px;
    height: 30px;
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    opacity: 0.6;
    filter: brightness(0.6);
}

.bg-miner {
    position: absolute;
    width: 16px;
    height: 16px;
    opacity: 0.8;
}

.bg-miner.mining-bob {
    animation: mine-bob 0.8s ease-in-out infinite alternate;
}

@keyframes mine-bob {
    0% { transform: translateY(0) rotate(-5deg); }
    100% { transform: translateY(-4px) rotate(5deg); }
}

/* POWER-UPS */
#powerup-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 15;
}

#powerup-container * {
    pointer-events: auto;
}

.powerup {
    position: absolute;
    width: 32px;
    height: 32px;
    cursor: pointer;
    z-index: 100;
    animation: float-around 4s ease-in-out infinite alternate;
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.5));
    transition: transform 0.1s ease-in-out;
}

.powerup:hover {
    transform: scale(1.2);
}

.powerup-sharp-pick {
    background-color: #ff3d00;
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.powerup-merchants-favor {
    background-color: #ffd700;
    border-radius: 50%;
    border: 3px double #ff9100;
}

.powerup-overdrive {
    background-color: #d500f9;
    clip-path: polygon(40% 0%, 90% 0%, 50% 50%, 80% 50%, 10% 100%, 40% 50%, 20% 50%);
}

@keyframes float-around {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(30px, -20px) rotate(15deg); }
}

/* ACTIVE BUFFS */
.active-buffs-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
    font-size: 0.9rem;
}

.buff-indicator {
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: bold;
    color: white;
    text-shadow: 1px 1px 2px black;
    animation: pulse 1s infinite alternate;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.buff-sharp-pick {
    background-color: #ff3d00;
}

.buff-merchants-favor {
    background-color: #ffd700;
    color: #333;
    text-shadow: none;
}

.buff-overdrive {
    background-color: #d500f9;
}

@keyframes pulse {
    0% { opacity: 0.8; transform: scale(0.98); }
    100% { opacity: 1; transform: scale(1.02); }
}
/* CENTER: The Rock */
main {
    grid-area: center;
    background-color: #2e1e19;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mining-stats {
    position: absolute;
    top: 20px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    background: rgba(0,0,0,0.6);
    padding: 10px 20px;
    border-radius: 8px;
    z-index: 10;
    color: #aed581;
}

#mother-lode-container {
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    z-index: 5;
}

.rock-shape {
    width: 200px;
    height: 200px;
    background-color: var(--rock-color);
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    box-shadow: inset -15px -15px 30px rgba(0,0,0,0.8);
    filter: drop-shadow(0 10px 10px rgba(0,0,0,0.8));
    transition: transform 0.05s ease-out, filter 0.2s;
}

.rock-shape:active {
    transform: scale(0.95);
    filter: brightness(1.2);
}

.particle {
    position: absolute;
    color: white;
    font-weight: bold;
    pointer-events: none;
    animation: floatUp 1s ease-out forwards;
    z-index: 20;
    text-shadow: 1px 1px 2px black;
}

@keyframes floatUp {
    0% { transform: translateY(0) scale(1); opacity: 1; }
    100% { transform: translateY(-50px) scale(1.5); opacity: 0; }
}

/* DEV TOOLS */
#dev-tools-toggle {
    position: fixed;
    bottom: 10px;
    right: 10px;
    background: #222;
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    z-index: 1000;
}
#dev-tools-panel {
    position: fixed;
    bottom: 40px;
    right: 10px;
    background: #333;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #555;
    z-index: 999;
}
#dev-tools-panel div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    gap: 10px;
}
#dev-tools-panel input {
    width: 80px;
    background: #111;
    color: white;
    border: 1px solid #555;
}
#dev-tools-panel button {
    margin-top: 0;
    padding: 5px;
    font-size: 0.8em;
}

/* Responsive */
@media (max-width: 900px) {
    #game-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto 400px auto;
        grid-template-areas: 
            "header"
            "center"
            "left"
            "right";
        height: auto;
        overflow: auto;
    }
    body { overflow: auto; }
}