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

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --text-primary: #eee;
    --text-secondary: #aaa;
    --accent: #e94560;
    --profit: #4ade80;
    --loss: #f87171;
    --border: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-secondary);
}

.controls {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-select {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
}

.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.8;
}

.btn-danger {
    background: var(--loss);
    color: white;
}

.price-value.editable {
    cursor: pointer;
    text-decoration: underline dotted;
}

.price-value.editable:hover {
    color: var(--accent);
}

.resources-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.resource-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border);
}

.resource-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.resource-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.resource-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.resource-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.resource-info {
    flex: 1;
}

.resource-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.resource-type {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.resource-prices {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.price-block {
    background: var(--bg-secondary);
    padding: 10px;
    border-radius: 8px;
    text-align: center;
}

.price-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 3px;
}

.price-value {
    font-size: 1.2rem;
    font-weight: 600;
}

.price-value.profit {
    color: var(--profit);
}

.price-value.loss {
    color: var(--loss);
}

.margin-block {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    padding: 10px 15px;
    border-radius: 8px;
}

.margin-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.margin-value {
    font-weight: 600;
}

.margin-value.profit {
    color: var(--profit);
}

.margin-value.no-recipe {
    color: var(--text-secondary);
}

.type-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.type-badge.mining { background: #7c3aed; }
.type-badge.fishing { background: #0891b2; }
.type-badge.gathering { background: #16a34a; }
.type-badge.crafting { background: #dc2626; }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 30px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-primary);
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.detail-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.detail-icon img {
    width: 64px;
    height: 64px;
    object-fit: contain;
}

.detail-title {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.detail-prices {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.detail-price-block {
    background: var(--bg-card);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.detail-price-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.detail-price-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.quantity-selector {
    margin: 20px 0;
    padding: 15px;
    background: var(--bg-card);
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.quantity-selector label {
    font-weight: 600;
    color: var(--text-secondary);
}

.quantity-selector input {
    width: 80px;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
}

.quantity-selector input:focus {
    outline: none;
    border-color: var(--accent);
}

.variants-subtitle {
    margin-top: -10px;
    margin-bottom: 15px;
    font-size: 0.85rem;
    opacity: 0.7;
}

.craft-tree {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
}

.craft-tree h3 {
    margin-bottom: 15px;
    color: var(--accent);
}

.tree-node {
    padding-left: 20px;
    border-left: 2px solid var(--border);
    margin-left: 10px;
}

.tree-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
}

.tree-item-icon {
    width: 32px;
    height: 32px;
    background: var(--bg-secondary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tree-item-icon img {
    width: 24px;
    height: 24px;
}

.tree-item-name {
    flex: 1;
}

.tree-item-qty {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tree-item-cost {
    font-weight: 600;
}

.tree-item-decision {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tree-item-decision.buy {
    background: #0891b2;
}

.tree-item-decision.craft {
    background: #16a34a;
}

.purchase-list {
    margin-top: 20px;
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
}

.purchase-list h3 {
    margin-bottom: 15px;
    color: var(--accent);
}

.purchase-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.purchase-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.purchase-item-name {
    flex: 1;
}

.purchase-item-math, .tree-item-math {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 15px;
}

.math-operator {
    font-size: 0.8rem;
    opacity: 0.7;
}

.unit-price {
    font-weight: 500;
}

.purchase-item-total {
    font-weight: 600;
    min-width: 60px;
    text-align: right;
}

.purchase-item:last-child {
    border-bottom: none;
}

.purchase-total {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    font-weight: 700;
    font-size: 1.1rem;
}

.no-recipe-msg {
    color: var(--text-secondary);
    text-align: center;
    padding: 20px;
}

.price-history-section {
    margin-top: 30px;
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
}

.price-history-section h3 {
    margin-bottom: 15px;
    color: var(--accent);
}

.chart-container {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 10px;
}

.all-variants {
    margin-top: 25px;
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
}

.all-variants h3 {
    margin-bottom: 15px;
    color: var(--accent);
}

.variants-list {
    max-height: 500px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.variant-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 12px;
    border: 2px solid transparent;
    transition: border-color 0.2s;
}

.variant-card:hover {
    border-color: var(--border);
}

.variant-card.optimal {
    border-color: var(--profit);
    background: rgba(74, 222, 128, 0.05);
}

.variant-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 600;
}

.variant-index {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.optimal-badge {
    background: var(--profit);
    color: #000;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
}

.variant-cost {
    margin-left: auto;
    font-size: 1.1rem;
}

.variant-margin {
    font-size: 0.95rem;
}

.variant-tree {
    font-size: 0.9rem;
}

.variant-tree .tree-item {
    padding: 4px 0;
}

.variant-tree .tree-item-icon {
    width: 24px;
    height: 24px;
}


@media (max-width: 768px) {
    .resources-list {
        grid-template-columns: 1fr;
    }

    .detail-prices {
        grid-template-columns: 1fr 1fr;
    }

    .controls {
        flex-direction: column;
    }
}