:root {
    --bg-color: #050505;
    --card-bg: #0a0a0a;
    --text-primary: #00ff41;
    /* Matrix Green */
    --text-secondary: #008f11;
    /* Darker Green */
    --accent-color: #00ff41;
    --danger-color: #ff0033;
    /* Hacker Red */
    --warning-color: #ffb800;
    --border-color: #1a1a1a;
    --neon-shadow: 0 0 5px rgba(0, 255, 65, 0.3);
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    /* Hacker Font */
    margin: 0;
    overflow: hidden;
    /* App-like feel */
}

/* Scrollbars - Hacker Style */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #000;
}

::-webkit-scrollbar-thumb {
    background: #003300;
    border: 1px solid var(--text-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Layout Principal */
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.header {
    background-color: #000;
    border-bottom: 1px solid var(--text-secondary);
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.logo h1 {
    margin: 0;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 5px var(--accent-color);
}

.version {
    font-size: 0.7rem;
    background: var(--text-secondary);
    color: black;
    padding: 2px 5px;
    margin-left: 10px;
}

/* Main Content Area */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar (Device List) */
.sidebar {
    width: 280px;
    background: #020202;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.device-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.device-card {
    background: black;
    border: 1px solid #333;
    padding: 10px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.device-card:hover {
    border-color: var(--accent-color);
    box-shadow: var(--neon-shadow);
}

.device-card.active {
    border-color: var(--accent-color);
    background: rgba(0, 255, 65, 0.05);
}

.device-card.active::before {
    content: '►';
    position: absolute;
    left: -10px;
    color: var(--accent-color);
    animation: blink 1s infinite;
}

.device-name {
    font-weight: bold;
    color: white;
}

.device-status {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* Main Panel Area */
.panel {
    flex: 1;
    background: #050505;
    padding: 0;
    display: flex;
    flex-direction: column;
    /* Background Grid Effect */
    background-image: linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
}

.view-section {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Device Top Bar */
.device-top-bar {
    background: rgba(0, 0, 0, 0.8);
    border-bottom: 1px solid var(--text-secondary);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.device-info-summary h2 {
    margin: 0;
    font-size: 1.1rem;
    color: white;
}

.device-id-badge {
    font-size: 0.7rem;
    font-family: monospace;
    color: #666;
}

/* Tabs */
.panel-tabs {
    display: flex;
    background: #0a0a0a;
    border-bottom: 1px solid var(--border-color);
    padding: 0 10px;
    gap: 2px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: #666;
    padding: 10px 15px;
    cursor: pointer;
    font-family: inherit;
    text-transform: uppercase;
    font-size: 0.8rem;
    border-top: 2px solid transparent;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--accent-color);
    border-color: var(--accent-color);
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1) inset;
}

/* Content Area */
.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    position: relative;
}

/* BUTTONS - Hacker Style */
.btn {
    background: black;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 8px 15px;
    font-family: inherit;
    text-transform: uppercase;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover {
    background: var(--accent-color);
    color: black;
    box-shadow: 0 0 10px var(--accent-color);
}

.btn-danger {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.btn-danger:hover {
    background: var(--danger-color);
    color: white;
    box-shadow: 0 0 10px var(--danger-color);
}

.btn-warning {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.btn-warning:hover {
    background: var(--warning-color);
    color: black;
}

/* Terminal Specifics */
.terminal-window {
    background: #000 !important;
    border: 1px solid #333 !important;
    font-family: 'Consolas', 'Courier New', monospace !important;
}

.term-line {
    padding: 2px 0;
}

.term-line.stdout {
    color: #ccc;
}

.term-line.command-line {
    color: #ffff55;
    font-weight: bold;
}

.term-line.error {
    color: #ff5555;
}

.term-line.info {
    color: #55ffff;
}

/* Dashboard Welcome */
.welcome-screen {
    text-align: center;
    margin-top: 10vh;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
    animation: float 3s ease-in-out infinite;
    text-shadow: 0 0 20px var(--accent-color);
}

.server-info-card {
    background: #000;
    border: 1px solid var(--text-secondary);
    max-width: 400px;
    margin: 2rem auto;
    padding: 20px;
    text-align: left;
}

.info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    border-bottom: 1px dashed #333;
    padding-bottom: 2px;
}

.value.online {
    color: var(--accent-color);
    animation: blink 2s infinite;
}

/* Animations */
@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Data Grids (Info, Contacts, etc) */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 10px;
}

.data-item {
    background: #000;
    border: 1px solid #333;
    padding: 10px;
}

.data-item:hover {
    border-color: var(--text-secondary);
}

.data-item-label {
    color: #666;
    font-size: 0.75rem;
}

.data-item-value {
    color: white;
}