@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=Exo+2:wght@300;400;500;600;700&display=swap');

:root {
    /* Core Colors - Star Atlas Inspired */
    --bg-void: #000000;
    --bg-deep: #050510;
    --bg-space: #0a0a1a;
    --bg-nebula: #0d1025;

    /* Accent Colors */
    --accent-cyan: #00f0ff;
    --accent-cyan-dim: #0693e3;
    --accent-purple: #a855f7;
    --accent-purple-dim: #7c3aed;
    --accent-magenta: #ec4899;
    --accent-gold: #fbbf24;
    --accent-green: #10b981;
    --accent-red: #ef4444;

    /* Glow Colors */
    --glow-cyan: rgba(0, 240, 255, 0.6);
    --glow-purple: rgba(168, 85, 247, 0.5);
    --glow-soft: rgba(0, 240, 255, 0.15);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b4c6ef;
    --text-muted: #64748b;
    --text-dim: #475569;

    /* Glass Effects */
    --glass-bg: rgba(10, 15, 30, 0.7);
    --glass-bg-solid: rgba(10, 15, 30, 0.9);
    --glass-border: rgba(0, 240, 255, 0.15);
    --glass-highlight: rgba(255, 255, 255, 0.05);

    /* Shadows */
    --shadow-glow: 0 0 60px rgba(0, 240, 255, 0.3);
    --shadow-deep: 0 25px 80px rgba(0, 0, 0, 0.9);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.6);

    /* Timing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Rajdhani', 'Segoe UI', sans-serif;
    background: var(--bg-void);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 20%, rgba(0, 240, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 30%, rgba(168, 85, 247, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 70% 50% at 50% 80%, rgba(236, 72, 153, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse 100% 100% at 50% 50%, var(--bg-deep) 0%, var(--bg-void) 100%);
    z-index: -2;
    pointer-events: none;
}

/* Grid overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.5;
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   HEADER
   ============================================ */
header {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-align: center;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 60px rgba(0, 240, 255, 0.5);
}

/* Breadcrumb */
.breadcrumb {
    text-align: center;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: all 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--accent-purple);
    text-shadow: 0 0 20px var(--glow-cyan);
}

/* ============================================
   NAVIGATION TABS
   ============================================ */
.navigation-tabs,
.sub-navigation-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-tab,
.sub-nav-tab {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.nav-tab::before,
.sub-nav-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.nav-tab:hover,
.sub-nav-tab:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
}

.nav-tab.active,
.sub-nav-tab.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-color: transparent;
    color: var(--bg-void);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.4);
}

.sub-nav-tab {
    font-size: 0.75rem;
    padding: 0.6rem 1.25rem;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
main {
    padding: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

/* Tab Content */
.tab-content,
.subtab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active,
.subtab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   STATS CARDS
   ============================================ */
.stats,
.analytics-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.4s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card h3 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.stat-number {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   EXPLORER LAYOUT
   ============================================ */
.explorer-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

/* Sidebar */
.buildings-sidebar {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    height: fit-content;
    max-height: 80vh;
    overflow-y: auto;
    position: sticky;
    top: 140px;
}

.buildings-sidebar h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    text-align: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

/* Search Input */
.search-container {
    margin-bottom: 1.25rem;
}

#searchInput,
.search-container input {
    width: 100%;
    padding: 0.85rem 1rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

#searchInput:focus,
.search-container input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
}

#searchInput::placeholder,
.search-container input::placeholder {
    color: var(--text-muted);
}

/* Stats Overview */
.stats-overview {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(0, 240, 255, 0.08);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
}

.stat-item:last-child {
    margin-bottom: 0;
}

.stat-item .stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: none;
    letter-spacing: normal;
}

.stat-item .stat-value {
    color: var(--accent-cyan);
    font-weight: bold;
    font-size: 0.9rem;
}

/* Filter Sections */
.filter-sections {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.filter-section h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-purple);
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
}

/* Checkbox Container */
.checkbox-container {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    max-height: 200px;
    overflow-y: auto;
}

.checkbox-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.75rem;
    border-radius: 10px;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.checkbox-item:hover {
    background: rgba(0, 240, 255, 0.08);
    border-color: var(--glass-border);
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 0.75rem;
    accent-color: var(--accent-cyan);
    cursor: pointer;
}

.checkbox-item label {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    flex: 1;
}

/* ============================================
   MAIN BUILDINGS AREA
   ============================================ */
.buildings-main {
    min-width: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.buildings-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.buildings-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.buildings-header p {
    font-family: 'Exo 2', sans-serif;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.buildings-container {
    flex: 1;
    padding: 2rem;
    overflow: auto;
    position: relative;
    min-width: 0;
}

/* Buildings Grid */
.buildings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

/* Building Card */
.building-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.4s var(--ease-out-expo);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.building-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-magenta));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.building-card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.building-card:hover::before {
    opacity: 0.5;
}

.building-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.building-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    flex: 1;
    line-height: 1.3;
}

.building-tier {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(168, 85, 247, 0.2);
    border: 1px solid rgba(168, 85, 247, 0.3);
    padding: 0.35rem 0.85rem;
    border-radius: 100px;
    color: var(--accent-purple);
    white-space: nowrap;
}

.building-info {
    margin-bottom: 1rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
}

.info-label {
    color: var(--text-muted);
}

.info-value {
    color: var(--text-secondary);
    font-weight: 500;
}

.building-costs,
.building-resources {
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.cost-summary,
.resource-summary {
    font-family: 'Exo 2', sans-serif;
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
}

.building-properties {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.property-tag {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.7rem;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    padding: 0.25rem 0.5rem;
    border-radius: 100px;
    color: var(--accent-cyan);
}

/* ============================================
   PLACEHOLDER CONTENT
   ============================================ */
.placeholder-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    min-height: 400px;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
}

.filter-placeholder .placeholder-content,
.no-results-placeholder .placeholder-content {
    min-height: 300px;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.7;
}

.placeholder-content h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.placeholder-content > p {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 600px;
}

.placeholder-tips {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
    max-width: 500px;
}

.tip {
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 12px;
    padding: 1rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.tip strong {
    color: var(--accent-cyan);
}

/* ============================================
   ANALYTICS HEADER
   ============================================ */
.analytics-header {
    text-align: center;
    margin-bottom: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
}

.analytics-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.analytics-header p {
    font-family: 'Exo 2', sans-serif;
    color: var(--text-muted);
}

/* ============================================
   ANALYTICS SECTIONS
   ============================================ */
.analytics-sections {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.analytics-section {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2rem;
}

.analytics-section h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.75rem;
}

.section-note {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
    font-style: italic;
}

/* Analytics Grids */
.tier-analysis-grid,
.type-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.analytics-item {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.analytics-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
}

.item-content {
    position: relative;
    z-index: 1;
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.item-header h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--accent-cyan);
}

.tier-badge,
.type-badge {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(0, 240, 255, 0.2);
    border: 1px solid rgba(0, 240, 255, 0.4);
    padding: 0.35rem 0.85rem;
    border-radius: 100px;
    color: var(--accent-cyan);
}

.item-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1rem;
}

.primary-stat,
.secondary-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.primary-stat .stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-cyan);
    background: none;
    -webkit-text-fill-color: var(--accent-cyan);
    line-height: 1;
}

.secondary-stat .stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-purple);
    line-height: 1;
}

.tier-details,
.type-percentage {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   RESOURCE ANALYSIS
   ============================================ */
.resource-analysis-tabs h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-purple);
    margin: 1.5rem 0 1rem 0;
}

.resource-analysis-tabs h4:first-child {
    margin-top: 0;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.resource-analysis-item {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.2s ease;
}

.resource-analysis-item:hover {
    border-color: var(--accent-cyan);
}

.resource-name {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.resource-stats {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.resource-stats span {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================
   COST ANALYSIS
   ============================================ */
.cost-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.cost-analysis-item {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.2s ease;
}

.cost-analysis-item:hover {
    border-color: var(--accent-cyan);
}

.material-name {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.material-stats .stat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
}

.stat-row .stat-label {
    color: var(--text-muted);
}

.stat-row .stat-value {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   PROPERTY ANALYSIS
   ============================================ */
.property-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.property-stat-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.property-stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.15);
}

.property-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.property-stat .stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    margin-bottom: 0.5rem;
}

.property-stat .stat-label {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.property-stat .stat-percentage {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   BUILDING MODAL
   ============================================ */
.building-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-content {
    background: linear-gradient(135deg, rgba(10, 10, 30, 0.95), rgba(20, 20, 50, 0.95));
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    padding: 0;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 100px rgba(0, 240, 255, 0.2), var(--shadow-deep);
    animation: modalSlideIn 0.4s var(--ease-out-back);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.modal-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.modal-close {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.1);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(90vh - 120px);
}

.building-overview {
    margin-bottom: 2rem;
}

.building-description {
    font-family: 'Exo 2', sans-serif;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
}

.details-section {
    margin-bottom: 2rem;
}

.details-section h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.cost-grid,
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
}

.cost-item,
.resource-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
}

.material-name,
.resource-name {
    color: var(--text-secondary);
}

.material-amount,
.resource-rate {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    color: var(--accent-cyan);
}

.properties-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.technical-info {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1rem;
    font-family: 'Exo 2', sans-serif;
    line-height: 1.6;
}

.technical-info p {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.technical-info strong {
    color: var(--accent-cyan);
}

/* ============================================
   RECIPE OPTIMIZER
   ============================================ */
.recipe-optimizer-header {
    text-align: center;
    margin-bottom: 2rem;
}

.recipe-optimizer-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.recipe-optimizer-header p {
    font-family: 'Exo 2', sans-serif;
    color: var(--text-muted);
}

.recipe-search-section {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.recipe-search-section .search-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.recipe-search-section .search-container input {
    flex: 1;
}

#optimizeButton {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    padding: 0.85rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border: none;
    border-radius: 12px;
    color: var(--bg-void);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

#optimizeButton:hover:not(:disabled) {
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
    transform: translateY(-2px);
}

#optimizeButton:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.recipe-search-results {
    max-height: 300px;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    display: none;
}

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

.recipe-search-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--glass-border);
    font-family: 'Exo 2', sans-serif;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.recipe-search-item:hover {
    background: rgba(0, 240, 255, 0.1);
    color: var(--text-primary);
}

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

.faction-filter-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.faction-checkboxes {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.faction-checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.faction-checkbox-item input {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-cyan);
}

.recipe-optimizer-results {
    min-height: 300px;
}

/* ============================================
   PLANET RECOMMENDATIONS
   ============================================ */
.planet-recommendations {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.planet-recommendations h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.tier-recommendations-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tier-recommendation {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-left: 4px solid;
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.tier-recommendation:hover {
    transform: translateX(8px);
    background: rgba(0, 240, 255, 0.05);
}

.tier-recommendation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.tier-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tier-icon {
    font-size: 1.8rem;
}

.tier-recommendation h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.tier-stats {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.planet-count {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 100px;
}

.tier-info-text {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0.75rem 0;
}

.warning-text {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--accent-red);
    font-weight: 600;
    margin: 1rem 0;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
}

.resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.resource-tag {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 100px;
    border: 1px solid;
    background-color: rgba(255, 255, 255, 0.05);
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.resource-tag:hover {
    transform: scale(1.05);
    background-color: rgba(255, 255, 255, 0.1);
}

.planet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.planet-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.planet-card:hover {
    background: rgba(0, 240, 255, 0.08);
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 240, 255, 0.15);
}

.planet-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.planet-resources {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
}

.tier-count {
    font-weight: 700;
}

.total-count {
    color: var(--text-muted);
}

/* ============================================
   REGION STYLES
   ============================================ */
.regional-planets-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}

.region-group {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--glass-border);
}

.region-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.region-header h5 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin: 0;
}

.region-count {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(0, 240, 255, 0.2);
    padding: 0.3rem 0.7rem;
    border-radius: 100px;
    color: var(--accent-cyan);
}

.region-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.9rem;
    border-radius: 100px;
    border: 1px solid rgba(168, 85, 247, 0.45);
    background: rgba(168, 85, 247, 0.12);
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
}

.region-chip:hover {
    transform: translateY(-2px);
    border-color: var(--accent-purple);
    box-shadow: 0 6px 18px rgba(168, 85, 247, 0.25);
}

.region-chip-meta {
    font-size: 0.7rem;
    opacity: 0.75;
    margin-left: 0.35rem;
}

.planet-chip-grid {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.planet-chip {
    border-radius: 100px;
    padding: 0.25rem 0.75rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.planet-chip:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.12);
}

/* ============================================
   MODAL OVERLAYS
   ============================================ */
.region-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 12, 20, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

.region-modal {
    width: min(520px, 92vw);
    max-height: 80vh;
    background: var(--glass-bg-solid);
    border: 1px solid var(--accent-purple);
    border-radius: 20px;
    box-shadow: 0 0 80px rgba(168, 85, 247, 0.3), var(--shadow-deep);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlideIn 0.3s var(--ease-out-back);
}

.region-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(168, 85, 247, 0.1);
}

.region-modal-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-purple);
}

.region-modal-close {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 1.2rem;
    line-height: 1;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.region-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.region-modal-body {
    padding: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    overflow-y: auto;
}

/* ============================================
   TIER STYLES
   ============================================ */
.tier-badge.tier-1 { background: rgba(107, 114, 128, 0.3); color: #9ca3af; }
.tier-badge.tier-2 { background: rgba(16, 185, 129, 0.3); color: var(--accent-green); }
.tier-badge.tier-3 { background: rgba(59, 130, 246, 0.3); color: #3b82f6; }
.tier-badge.tier-4 { background: rgba(168, 85, 247, 0.3); color: var(--accent-purple); }
.tier-badge.tier-5 { background: rgba(251, 191, 36, 0.3); color: var(--accent-gold); }

/* ============================================
   FACTION BADGES
   ============================================ */
.faction-badge,
.faction-badge-mini {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
}

.faction-badge.mud,
.faction-badge-mini.faction-mud {
    background: rgba(139, 69, 19, 0.3);
    border: 1px solid rgba(139, 69, 19, 0.5);
    color: #cd853f;
}

.faction-badge.oni,
.faction-badge-mini.faction-oni {
    background: rgba(0, 100, 200, 0.3);
    border: 1px solid rgba(0, 100, 200, 0.5);
    color: #4da6ff;
}

.faction-badge.ust,
.faction-badge.ustur,
.faction-badge-mini.faction-ust,
.faction-badge-mini.faction-ustur {
    background: rgba(128, 0, 128, 0.3);
    border: 1px solid rgba(128, 0, 128, 0.5);
    color: #da70d6;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-magenta));
}

/* ============================================
   CONSTRUCTION MODULE - Star Atlas Theme
   ============================================ */

/* Planet Selector */
.construction-planet-selector {
    background: var(--glass-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
}

.construction-section-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-green);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.construction-form-group {
    margin-bottom: 1rem;
}

.construction-label {
    display: block;
    font-family: 'Exo 2', sans-serif;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.construction-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-space);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.construction-select:hover,
.construction-select:focus {
    border-color: var(--accent-cyan);
    outline: none;
    box-shadow: 0 0 15px var(--glow-soft);
}

/* Construction Modal */
.construction-modal {
    background: linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-space) 100%);
    color: var(--text-primary);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glow);
}

.construction-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.construction-modal-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-green);
    font-size: 1.5rem;
    margin: 0;
}

/* Stake Info */
.construction-stake-info {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}

.construction-stake-row {
    margin-bottom: 0.75rem;
    font-family: 'Rajdhani', sans-serif;
}

.construction-stake-select {
    margin-left: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-space);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    font-family: 'Rajdhani', sans-serif;
    cursor: pointer;
}

.construction-planet-info {
    font-family: 'Rajdhani', sans-serif;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.construction-divider {
    margin: 0 0.5rem;
    color: var(--text-dim);
}

/* Two-column Layout */
.construction-layout {
    display: flex;
    gap: 1.5rem;
}

.construction-buildings-panel {
    flex: 0 0 30%;
    display: flex;
    flex-direction: column;
}

.construction-plan-panel {
    flex: 0 0 70%;
    display: flex;
    flex-direction: column;
}

.construction-panel-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-gold);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.construction-plan-title {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Search */
.construction-search-container {
    margin-bottom: 1rem;
}

.construction-search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.construction-search-input:focus {
    border-color: var(--accent-cyan);
    outline: none;
    box-shadow: 0 0 15px var(--glow-soft);
}

.construction-search-input::placeholder {
    color: var(--text-dim);
}

/* Filters */
.construction-filters {
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.construction-filter-label {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.construction-filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.construction-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease;
}

.construction-checkbox-label:hover {
    color: var(--accent-cyan);
}

.construction-checkbox-label input {
    cursor: pointer;
    accent-color: var(--accent-cyan);
}

/* Buildings List */
.construction-buildings-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 800px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Building Card */
.construction-building-card {
    background: var(--glass-bg);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.construction-building-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--glow-soft);
}

.construction-building-name {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-size: 0.95rem;
    margin: 0 0 0.5rem 0;
}

.construction-building-meta {
    font-family: 'Exo 2', sans-serif;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.construction-building-desc {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.construction-building-stats {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.construction-building-actions {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.construction-btn {
    font-family: 'Exo 2', sans-serif;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.construction-btn-add {
    flex: 1;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-void);
}

.construction-btn-add:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px var(--glow-cyan);
}

.construction-btn-recipe {
    background: var(--accent-purple);
    color: white;
}

.construction-btn-recipe:hover {
    background: var(--accent-purple-dim);
}

.construction-btn-details {
    background: var(--accent-gold);
    color: var(--bg-void);
}

.construction-btn-details:hover {
    filter: brightness(1.1);
}

.construction-btn-primary {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    color: var(--bg-void);
}

.construction-btn-primary:hover {
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
}

.construction-btn-secondary {
    background: var(--glass-bg);
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
}

.construction-btn-secondary:hover {
    background: rgba(0, 240, 255, 0.1);
}

.construction-btn-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.construction-btn-danger:hover {
    background: rgba(239, 68, 68, 0.3);
}

/* Facility Plan */
.construction-facility-plan {
    padding: 1.5rem;
    background: var(--glass-bg);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    max-height: 800px;
    overflow-y: auto;
}

.construction-plan-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Empty State */
.construction-empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-dim);
}

.construction-empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.construction-empty-text {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
}

/* Validation */
.construction-validation {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.9rem;
}

.construction-validation-success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.construction-validation-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

/* Summary Stats */
.construction-summary-stats {
    margin-bottom: 1.5rem;
    font-family: 'Rajdhani', sans-serif;
    line-height: 1.8;
}

.stat-positive {
    color: var(--accent-green);
}

.stat-negative {
    color: var(--accent-red);
}

/* Selected Buildings Grid */
.construction-selected-buildings {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.construction-selected-card {
    background: var(--glass-bg);
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    font-size: 0.85rem;
    position: relative;
    transition: all 0.2s ease;
}

.construction-selected-card.comes-with-stake {
    border: 2px solid var(--accent-gold);
}

.construction-remove-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--accent-red);
    color: white;
    border: none;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.construction-remove-btn:hover {
    transform: scale(1.1);
}

.construction-selected-content {
    margin-right: 1.5rem;
}

.construction-selected-name {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-size: 0.9rem;
}

.construction-selected-meta {
    font-family: 'Exo 2', sans-serif;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin: 0.25rem 0;
}

.construction-selected-stats {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
    font-family: 'Rajdhani', sans-serif;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.construction-stake-badge {
    color: var(--accent-gold);
    font-size: 0.7rem;
    margin-top: 0.5rem;
}

/* Info Grid */
.construction-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.construction-info-card {
    background: var(--glass-bg);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    font-family: 'Rajdhani', sans-serif;
}

.construction-info-item {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 1024px) {
    .construction-layout {
        flex-direction: column;
    }

    .construction-buildings-panel,
    .construction-plan-panel {
        flex: 1;
    }

    .construction-buildings-list {
        max-height: 400px;
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
    .explorer-layout {
        grid-template-columns: 1fr;
    }

    .buildings-sidebar {
        position: static;
        max-height: none;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    main {
        padding: 1rem;
    }

    .buildings-grid {
        grid-template-columns: 1fr;
    }

    .stats,
    .analytics-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-content {
        padding: 0;
        border-radius: 20px;
    }

    .modal-header {
        padding: 1.5rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .planet-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .tier-recommendation-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .nav-tab,
    .sub-nav-tab {
        padding: 0.6rem 1rem;
        font-size: 0.7rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stats,
    .analytics-stats {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}