/* OSRS DPS Calculator - Dark Theme */

:root {
    /* OSRS-inspired color palette */
    --bg-dark: #1a1a2e;
    --bg-panel: #252542;
    --bg-input: #1e1e35;
    --bg-hover: #2d2d4a;
    
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    
    --accent-gold: #ffd700;
    --accent-orange: #ff9800;
    --accent-green: #4caf50;
    --accent-red: #f44336;
    --accent-blue: #2196f3;
    
    --border-color: #3a3a5c;
    --border-light: #4a4a6c;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header */
header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

header h1 {
    font-size: 2.5rem;
    color: var(--accent-gold);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Main Grid Layout */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 1200px) {
    .main-grid {
        grid-template-columns: 1fr 1fr;
    }
    .results-panel {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    .results-panel {
        grid-column: span 1;
    }
}

/* Panels */
.panel {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.panel h2 {
    color: var(--accent-gold);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.panel h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

/* Input Groups */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.input-row {
    display: flex;
    gap: var(--spacing-sm);
}

input[type="text"],
input[type="number"] {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
    width: 100%;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2);
}

.help-text {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
    color: #1a1a1a;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--accent-gold);
}

.btn-full {
    width: 100%;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.stat-input {
    display: flex;
    flex-direction: column;
}

.stat-input label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.stat-input input {
    text-align: center;
    padding: var(--spacing-xs) var(--spacing-sm);
}

/* Equipment Grid */
.equipment-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.equip-row {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.equip-slot {
    width: 70px;
    height: 70px;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.equip-slot:hover {
    border-color: var(--accent-gold);
    background: var(--bg-hover);
}

.equip-slot.equipped {
    border-color: var(--accent-green);
}

.equip-slot .slot-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    position: absolute;
    bottom: 2px;
}

.equip-slot .slot-icon {
    width: 40px;
    height: 40px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.equip-slot .item-name {
    font-size: 0.65rem;
    color: var(--text-primary);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 60px;
}

/* Item Search */
.item-search {
    margin-bottom: var(--spacing-md);
}

.search-results {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    max-height: 200px;
    overflow-y: auto;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

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

.search-result-item:hover {
    background: var(--bg-hover);
}

.search-result-item .item-name {
    color: var(--text-primary);
}

.search-result-item .item-slot {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Equipment Bonuses Summary */
.equipment-summary {
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 1400px) {
    .bonus-grid {
        grid-template-columns: 1fr;
    }
}

.bonus-section h4 {
    color: var(--accent-gold);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.bonus-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    padding: 2px 0;
}

.bonus-row span:first-child {
    color: var(--text-secondary);
}

.bonus-row span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* Monster Section */
.monster-section {
    margin-bottom: var(--spacing-lg);
}

.monster-info {
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.monster-name {
    font-size: 1.2rem;
    color: var(--accent-orange);
    margin-bottom: var(--spacing-sm);
}

.monster-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.monster-stat {
    display: flex;
    flex-direction: column;
}

.monster-stat .stat-label {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.monster-stat span:last-child {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

/* DPS Section */
.dps-section {
    margin-bottom: var(--spacing-lg);
}

.dps-display {
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.dps-main {
    margin-bottom: var(--spacing-md);
}

.dps-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-green);
    display: block;
}

.dps-label {
    color: var(--text-secondary);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.dps-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-panel);
    border-radius: var(--radius-sm);
}

.detail-row span:first-child {
    color: var(--text-secondary);
}

.detail-row span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* Simulation Section */
.simulation-section {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

.simulation-results {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-input);
    border-radius: var(--radius-md);
}

.sim-result {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
}

.sim-result span:first-child {
    color: var(--text-secondary);
}

.sim-result span:last-child {
    color: var(--accent-gold);
    font-weight: 600;
}

/* Upgrade Panel */
.upgrade-panel {
    margin-top: var(--spacing-lg);
}

.upgrade-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    margin-bottom: var(--spacing-md);
}

.upgrade-controls .input-group {
    flex: 1;
    margin-bottom: 0;
}

.upgrade-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover {
    border-color: var(--accent-gold);
}

.tab-btn.active {
    background: var(--accent-gold);
    color: #1a1a1a;
    border-color: var(--accent-gold);
}

.upgrade-table-container {
    overflow-x: auto;
}

.upgrade-table {
    width: 100%;
    border-collapse: collapse;
}

.upgrade-table th,
.upgrade-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.upgrade-table th {
    background: var(--bg-input);
    color: var(--accent-gold);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.upgrade-table tbody tr:hover {
    background: var(--bg-hover);
}

.upgrade-table .empty-message {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-xl);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1001;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    color: var(--accent-gold);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

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

.modal-body {
    padding: var(--spacing-md);
}

.modal-results {
    max-height: 400px;
    overflow-y: auto;
    margin-top: var(--spacing-md);
}

.modal-result-item {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

.modal-result-item:hover {
    background: var(--bg-hover);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-input);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* Utility Classes */
.text-gold { color: var(--accent-gold); }
.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-red); }
.text-muted { color: var(--text-muted); }

/* Duo Upgrade Styles */
.duo-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-blue), #1976d2);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 3px;
    margin-right: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    vertical-align: middle;
}

.duo-row {
    background: rgba(33, 150, 243, 0.08);
}

.duo-row:hover {
    background: rgba(33, 150, 243, 0.15);
}

.item-cell {
    max-width: 300px;
    word-wrap: break-word;
}

/* Monster Attribute Badges */
.monster-attributes {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
}

.attribute-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 3px;
    text-transform: uppercase;
}

.attribute-badge.dragon {
    background: linear-gradient(135deg, #ff5722, #e64a19);
    color: white;
}

.attribute-badge.undead {
    background: linear-gradient(135deg, #9c27b0, #7b1fa2);
    color: white;
}

.attribute-badge.demon {
    background: linear-gradient(135deg, #f44336, #c62828);
    color: white;
}

/* Special Effect Indicators */
.effect-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--accent-gold);
    margin-left: var(--spacing-sm);
}

.effect-indicator::before {
    content: '★';
}

/* Responsive adjustments for upgrade table */
@media (max-width: 768px) {
    .upgrade-table {
        font-size: 0.85rem;
    }
    
    .upgrade-table th,
    .upgrade-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .duo-badge {
        display: block;
        margin-bottom: 4px;
        width: fit-content;
    }
}