:root {
    --bg-color: #0f172a;
    --panel-bg: rgba(30, 41, 59, 0.7);
    --panel-border: rgba(255, 255, 255, 0.1);
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.5);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-family: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for Glassmorphism depth */
.background-blobs {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, #3b82f6, #1e3a8a);
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, #8b5cf6, #4c1d95);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 10%) scale(1.1); }
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border);
    border-radius: 1rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem 2rem !important;
}

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

.logo i {
    font-size: 2rem;
    color: var(--primary);
    text-shadow: 0 0 15px var(--primary-glow);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.live-badge {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.4);
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 1rem;
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--warning);
    box-shadow: 0 0 10px var(--warning);
}

.status-indicator.connected {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-indicator.disconnected {
    background: var(--danger);
    box-shadow: 0 0 10px var(--danger);
}

/* Grids */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.middle-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 992px) {
    .middle-grid { grid-template-columns: 1fr; }
}

/* Summary Cards */
.summary-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.summary-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    color: var(--primary);
}

.card-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.card-info .value {
    font-size: 1.8rem;
    font-weight: 700;
}

.highlight-card {
    background: linear-gradient(135deg, rgba(30,41,59,0.8) 0%, rgba(15,23,42,0.9) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(139, 92, 246, 0.1), transparent);
    animation: shine 3s infinite linear;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.gradient-text {
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Animations */
@keyframes valueUpdate {
    0% { color: var(--success); transform: scale(1.1); }
    100% { color: var(--text-main); transform: scale(1); }
}

.value-updated {
    animation: valueUpdate 1s ease-out;
}

/* Devices List */
.devices-container h2, .chart-container h2, .recent-sales-container h2 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 1rem;
}

.devices-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.4); }

.device-item {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 0.75rem;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.device-item:hover {
    background: rgba(0, 0, 0, 0.3);
    border-color: rgba(255,255,255,0.1);
}

.device-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.device-name {
    font-weight: 600;
    font-size: 1rem;
}

.device-ip {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.device-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-online { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.status-offline { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

/* Table */
.modern-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.modern-table th {
    padding: 1rem;
    color: var(--text-muted);
    font-weight: 500;
    border-bottom: 1px solid var(--panel-border);
}

.modern-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.modern-table tr:last-child td { border-bottom: none; }

.modern-table tr {
    transition: background-color 0.2s;
}

.modern-table tr:hover {
    background-color: rgba(255,255,255,0.02);
}

.type-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.8rem;
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    display: inline-block;
}

.new-row {
    animation: flashRow 2s ease-out;
}

@keyframes flashRow {
    0% { background-color: rgba(16, 185, 129, 0.3); }
    100% { background-color: transparent; }
}