:root {
    --bg-color: #0b0f19;
    --panel-bg: rgba(15, 23, 42, 0.6);
    --panel-border: rgba(255, 255, 255, 0.08);
    --accent-color: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #60a5fa, #3b82f6);
    --success-color: #10b981;
    --success-gradient: linear-gradient(135deg, #34d399, #10b981);
    --danger-color: #ef4444;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.1), transparent 25%);
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Glassmorphism primitives */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2.5rem 1rem !important;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    font-weight: 400;
    margin: 0;
}

/* Flex utilities */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
}

.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }

/* Settings Bar */
.settings-bar {
    padding: 1.25rem 2rem !important;
    border-radius: 20px !important;
}

.setting-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.setting-group label {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.glass-input {
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    color: white;
    padding: 8px 16px;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s;
    cursor: pointer;
}

.glass-input:focus, .glass-input:hover {
    border-color: var(--accent-color);
    background: rgba(0,0,0,0.3);
}

.glass-input option {
    background: var(--bg-color);
    color: white;
}

/* Upload Area */
.upload-zone {
    padding: 0 !important;
    overflow: hidden;
}

.upload-area {
    border: 2px dashed rgba(59, 130, 246, 0.4);
    border-radius: 20px;
    padding: 4rem 2rem;
    margin: 1.5rem;
    text-align: center;
    background: rgba(59, 130, 246, 0.03);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.upload-area:hover, .upload-area.dragover {
    background: rgba(59, 130, 246, 0.08);
    border-color: var(--accent-color);
    transform: scale(0.995);
}

.upload-icon {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 4px 12px rgba(59,130,246,0.4));
    transition: transform 0.3s ease;
}

.upload-area:hover .upload-icon {
    transform: translateY(-5px);
}

.upload-area h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin: 0 0 0.5rem 0;
    font-weight: 600;
}

.save-location {
    margin-top: 1.5rem;
    color: var(--text-muted);
}

.path-code {
    display: inline-block;
    background: rgba(0,0,0,0.3);
    padding: 6px 12px;
    border-radius: 8px;
    margin-top: 8px;
    font-size: 0.85rem;
    color: #cbd5e1;
    border: 1px solid rgba(255,255,255,0.05);
}

/* Loading Overlay */
.loading-overlay {
    padding: 4rem 2rem !important;
}

.spinner {
    width: 64px;
    height: 64px;
    border: 4px solid rgba(255,255,255,0.05);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    margin-bottom: 2rem;
}

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

.progress-container {
    width: 100%;
    max-width: 480px;
    height: 10px;
    background: rgba(0,0,0,0.3);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.progress-bar {
    height: 100%;
    background: var(--accent-gradient);
    width: 0%;
    transition: width 0.4s ease;
    border-radius: 5px;
    box-shadow: 0 0 15px rgba(59,130,246,0.6);
}

/* Dashboard Summary */
.summary-panel {
    position: relative;
    overflow: hidden;
    padding: 3rem 2rem !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(180deg, rgba(30,41,59,0.7) 0%, rgba(15,23,42,0.7) 100%);
}

.summary-panel::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.summary-panel h2 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin: 0;
}

.huge-text {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 800;
    margin: 0.5rem 0 1.5rem 0;
    color: var(--success-color);
    background: var(--success-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 10px 20px rgba(16, 185, 129, 0.2));
}

.account-info {
    background: rgba(0,0,0,0.3);
    padding: 8px 20px;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.05);
}

#account-avatar {
    box-shadow: 0 4px 12px rgba(59,130,246,0.3);
}

/* Stats Section */
.stats-section {
    margin: 3rem 0 4rem 0;
}

.stats-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, #f59e0b, transparent);
    opacity: 0.5;
}

.stat-card:hover {
    transform: translateY(-4px);
    background: rgba(30, 41, 59, 0.9);
    border-color: rgba(255,255,255,0.15);
    box-shadow: 0 12px 30px rgba(0,0,0,0.4), 0 0 20px rgba(245,158,11,0.15);
}

.stat-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    filter: drop-shadow(0 6px 12px rgba(0,0,0,0.5));
}

.stat-name {
    font-weight: 600;
    font-size: 1.05rem;
    color: #f1f5f9;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-metric {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.stat-value {
    font-family: var(--font-heading);
    color: var(--success-color);
    font-weight: 700;
    font-size: 1.25rem;
}

/* Inventory Grid */
.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.item-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 20px;
    padding: 2rem 1.5rem 1.5rem 1.5rem;
    text-align: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.item-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(180deg, rgba(255,255,255,0.1), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.item-card:hover {
    background: rgba(30, 41, 59, 0.7);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.3);
    border-color: rgba(255,255,255,0.15);
}

.item-qty {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255,255,255,0.1);
    color: #e2e8f0;
    font-weight: 600;
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 10px;
    backdrop-filter: blur(4px);
    z-index: 2;
}

.inv-img {
    width: 90px;
    height: 90px;
    object-fit: contain;
    margin: 0 auto 1.5rem;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.5));
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.item-card:hover .inv-img {
    transform: scale(1.15) translateY(-5px);
}

.inv-name {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.inv-price {
    font-family: var(--font-heading);
    color: var(--success-color);
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 1rem;
}

.inv-steam-name {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 0 4px 0.5rem;
    border: 1px solid transparent;
}

.badge-common { background: rgba(148,163,184,0.1); color: #cbd5e1; border-color: rgba(148,163,184,0.3); }
.badge-uncommon { background: rgba(52,211,153,0.1); color: #34d399; border-color: rgba(52,211,153,0.3); }
.badge-rare { background: rgba(96,165,250,0.1); color: #60a5fa; border-color: rgba(96,165,250,0.3); }
.badge-epic { background: rgba(167,139,250,0.1); color: #a78bfa; border-color: rgba(167,139,250,0.3); }
.badge-legendary { background: rgba(251,191,36,0.1); color: #fbbf24; border-color: rgba(251,191,36,0.3); }
.badge-mythic { background: rgba(244,63,94,0.1); color: #f43f5e; border-color: rgba(244,63,94,0.3); }
.badge-immortal { 
    background: linear-gradient(135deg, rgba(234,179,8,0.15), rgba(249,115,22,0.15)); 
    color: #fb923c; 
    border-color: rgba(249,115,22,0.4); 
}
.badge-material { background: rgba(14,165,233,0.1); color: #38bdf8; border-color: rgba(14,165,233,0.3); }

.not-tradable {
    color: var(--danger-color);
    font-weight: 600;
    background: rgba(239,68,68,0.1);
    padding: 6px 12px;
    border-radius: 8px;
    display: inline-block;
}

@media (max-width: 768px) {
    .huge-text {
        font-size: 3.5rem;
    }
    .container {
        padding: 1rem;
    }
    .flex-between {
        flex-direction: column;
        align-items: stretch;
    }
}