:root {
    /* Color Palette - Olive Dark Theme */
    --clr-primary: #6AB04C;
    --clr-primary-hover: #5a963f;
    --clr-secondary: #BADC58;
    --clr-accent: #F0932B;
    --clr-bg-base: #0F1A0A;
    --clr-bg-glass: rgba(20, 35, 15, 0.6);
    --clr-bg-glass-hover: rgba(30, 50, 20, 0.8);
    --clr-border: rgba(106, 176, 76, 0.2);
    --clr-border-focus: #6AB04C;
    
    --clr-text-main: #E8F5E9;
    --clr-text-muted: #A5D6A7;
    --clr-text-warning: #FFB142;
    --clr-text-danger: #FF5252;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--clr-bg-base);
    color: var(--clr-text-main);
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(106, 176, 76, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(240, 147, 43, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

.app-wrapper {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Typography & Layout */
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1.5rem; }
.pb-3 { padding-bottom: 0.75rem; }
.border-b { border-bottom: 1px solid var(--clr-border); }
.text-warning { color: var(--clr-text-warning); }
.accent { color: var(--clr-accent); }

.glass-panel {
    background: var(--clr-bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo svg {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 8px rgba(240, 147, 43, 0.4));
}

header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--clr-secondary), var(--clr-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

/* Dropzone */
.dropzone {
    padding: 4rem 2rem;
    text-align: center;
    border: 2px dashed var(--clr-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 2rem;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--clr-primary);
    background: var(--clr-bg-glass-hover);
    transform: translateY(-2px);
}

.drop-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--clr-primary);
    opacity: 0.8;
}

.drop-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.drop-content p {
    color: var(--clr-text-muted);
}

.support-text {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: var(--clr-text-muted);
}
.warning-text {
    color: var(--clr-text-warning);
    margin-top: 0.5rem;
    background: rgba(255, 177, 66, 0.1);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* Dashboard */
.hidden { display: none !important; }

.dashboard {
    animation: fadeIn 0.4s ease forwards;
}

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

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    background: var(--clr-bg-base);
    border: 1px solid var(--clr-border);
    color: var(--clr-secondary);
}

.badge-warning {
    border-color: rgba(255, 177, 66, 0.4) !important;
}

.badge-version { color: var(--clr-text-muted); }
.badge-size { color: var(--clr-accent); }

/* Buttons & Inputs */
.actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.search-input {
    background: var(--clr-bg-base);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-main);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
    width: 250px;
}
.search-input:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 2px rgba(106, 176, 76, 0.2);
}

.btn {
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
    border: none;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--clr-border);
    color: var(--clr-text-main);
}
.btn-outline:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
}

.btn-secondary {
    background: var(--clr-bg-glass);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-main);
}
.btn-secondary:hover {
    background: var(--clr-border);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.metric-card {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--clr-primary);
}

.metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--clr-text-muted);
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--clr-primary);
}
.badge-warning .metric-value { color: var(--clr-text-warning); }

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--clr-bg-glass);
    padding-bottom: 0;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--clr-text-muted);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: var(--clr-text-main);
}

.tab-btn.active {
    color: var(--clr-primary);
    border-bottom-color: var(--clr-primary);
}

/* Tab Content */
.tab-content {
    min-height: 400px;
    padding: 1rem;
}

.list-header {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--clr-text-muted);
    border-bottom: 1px solid var(--clr-border);
    margin-bottom: 0.5rem;
}

.scroll-container {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Custom Scrollbar */
.scroll-container::-webkit-scrollbar {
    width: 6px;
}
.scroll-container::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.2);
    border-radius: 4px;
}
.scroll-container::-webkit-scrollbar-thumb {
    background: var(--clr-border);
    border-radius: 4px;
}
.scroll-container::-webkit-scrollbar-thumb:hover {
    background: var(--clr-primary);
}

/* List Items */
.tree-item, .dupe-item, .audit-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.tree-item:hover, .dupe-item:hover, .audit-item:hover {
    background: rgba(255,255,255,0.03);
    border-color: var(--clr-border);
}

.pkg-name {
    font-weight: 600;
    color: var(--clr-text-main);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.pkg-req {
    color: var(--clr-text-muted);
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

.pkg-meta {
    display: flex;
    gap: 0.5rem;
}

.dupe-versions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    max-width: 50%;
    justify-content: flex-end;
}

footer {
    margin-top: auto;
    text-align: center;
    padding: 2rem 0 0;
    font-size: 0.8rem;
    color: var(--clr-text-muted);
}