/* CSS Reset & Variables */
:root {
    --bg-main: #0b0f19;
    --bg-card: rgba(20, 26, 42, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.3);
    
    --color-primary: #38bdf8;       /* Cyan */
    --color-primary-glow: rgba(56, 189, 248, 0.35);
    --color-secondary: #a855f7;     /* Purple */
    --color-success: #10b981;       /* Emerald Green */
    --color-success-glow: rgba(16, 185, 129, 0.25);
    --color-warning: #f59e0b;       /* Amber */
    --color-danger: #ef4444;        /* Rose Red */
    --color-danger-glow: rgba(239, 68, 68, 0.35);
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-highlight: #e0f2fe;
    
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --transition-speed: 0.3s;
    --border-radius: 16px;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 10% 20%, rgba(56, 189, 248, 0.08) 0px, transparent 50%),
        radial-gradient(at 90% 80%, rgba(168, 85, 247, 0.08) 0px, transparent 50%);
}

.app-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

/* Header styling */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: #fff;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
    animation: pulse-logo 3s ease-in-out infinite;
}

.logo-area h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(to right, #ffffff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-area .subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

.system-status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.3);
    padding: 10px 18px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 14px;
    transition: all var(--transition-speed);
}

.pulse-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.status-green {
    background-color: var(--color-success);
    box-shadow: 0 0 12px var(--color-success);
    animation: pulse-green 1.5s infinite;
}

.status-red {
    background-color: var(--color-danger);
    box-shadow: 0 0 12px var(--color-danger);
    animation: pulse-red 1.5s infinite;
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
}

/* Cards Base */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.card:hover {
    border-color: var(--border-hover);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-highlight);
}

.card-header h2 i {
    color: var(--color-primary);
}

/* Badge for scanning status */
.badge {
    padding: 6px 12px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.badge.scanning {
    background: rgba(56, 189, 248, 0.15);
    color: var(--color-primary);
    border-color: rgba(56, 189, 248, 0.3);
    animation: pulse-badge 1.5s infinite;
}

.badge.danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.3);
}

/* Network Map Card */
.network-visual-card {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
}

.network-map-wrapper {
    flex-grow: 1;
    min-height: 380px;
    background: rgba(5, 7, 15, 0.5);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.network-canvas {
    width: 100%;
    height: 100%;
    position: relative;
}

/* Network Nodes styling */
.network-node {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
    z-index: 10;
}

.network-node:hover {
    transform: scale(1.15);
}

.network-node .node-label {
    position: absolute;
    bottom: -25px;
    white-space: nowrap;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(11, 15, 25, 0.85);
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Node types */
.router-node {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    font-size: 30px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    box-shadow: 0 0 25px var(--color-primary-glow);
}

.router-node:hover {
    transform: translate(-50%, -50%) scale(1.08);
}

.router-node .node-label {
    bottom: -30px;
    font-size: 12px;
    font-weight: 600;
}

.device-node {
    background: rgba(30, 41, 59, 0.8);
    border: 2px solid var(--color-success);
    box-shadow: 0 0 15px var(--color-success-glow);
}

.device-node.unauthorized {
    border-color: var(--color-danger);
    box-shadow: 0 0 20px var(--color-danger-glow);
    animation: shake-node 0.5s ease-in-out infinite alternate, glow-danger-node 1.5s infinite alternate;
}

.device-node.blocked-node {
    border-color: var(--text-muted);
    box-shadow: none;
    opacity: 0.5;
    background: rgba(15, 23, 42, 0.9);
}

/* SVG Connection Lines */
.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connection-line {
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 1.5;
    fill: none;
    transition: stroke var(--transition-speed), stroke-width var(--transition-speed);
}

.connection-line.active {
    stroke: var(--color-success);
    stroke-dasharray: 6 4;
    animation: dash-line 20s linear infinite;
}

.connection-line.unauthorized {
    stroke: var(--color-danger);
    stroke-width: 2;
    stroke-dasharray: 4 2;
    animation: dash-line-reverse 10s linear infinite;
}

.visual-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    font-size: 12px;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 8px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-dot.authorized { background-color: var(--color-success); }
.legend-dot.unauthorized { background-color: var(--color-danger); }
.legend-dot.blocked { background-color: var(--text-muted); }

/* Controls & Statistics */
.controls-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.btn {
    font-family: var(--font-family);
    padding: 12px 20px;
    border-radius: 10px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease-in-out;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #0284c7);
    color: #fff;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.45);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
}

.btn-warning:hover {
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger), #be123c);
    color: white;
}

.btn-danger:hover {
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.stat-box {
    background: rgba(0, 0, 0, 0.25);
    padding: 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    text-align: center;
}

.stat-title {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
}

.text-green { color: var(--color-success); }
.text-red { color: var(--color-danger); }
.text-highlight { color: var(--color-primary); }

.network-info {
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 12px;
    display: flex;
    justify-content: space-between;
}

/* Terminal Logs Card */
.terminal-card {
    display: flex;
    flex-direction: column;
}

.btn-clear-terminal {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    transition: color 0.2s;
}

.btn-clear-terminal:hover {
    color: var(--color-danger);
}

.terminal-body {
    flex-grow: 1;
    background: #05070f;
    border-radius: 10px;
    padding: 12px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    line-height: 1.6;
    height: 240px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
}

.terminal-output {
    flex-grow: 1;
    overflow-y: auto;
    margin-bottom: 8px;
    padding-right: 4px;
}

/* Custom Scrollbar for Terminal Output */
.terminal-output::-webkit-scrollbar {
    width: 6px;
}
.terminal-output::-webkit-scrollbar-track {
    background: transparent;
}
.terminal-output::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
.terminal-output::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

.terminal-input-line {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.4);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 6px 8px;
    border-radius: 6px;
}

.terminal-prompt {
    color: var(--color-primary);
    font-weight: bold;
    margin-right: 8px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    user-select: none;
}

#terminal-input {
    flex-grow: 1;
    background: none;
    border: none;
    outline: none;
    color: #fff;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
}

#terminal-input::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.log-line {
    margin-bottom: 4px;
    word-break: break-all;
}

.system-log { color: #5f87af; }
.scan-log { color: var(--color-primary); }
.success-log { color: var(--color-success); }
.warning-log { color: var(--color-warning); }
.alert-log { color: var(--color-danger); font-weight: bold; }

/* Inventory/Table Card */
.inventory-card {
    grid-column: span 2;
}

.table-wrapper {
    overflow-x: auto;
    width: 100%;
}

.device-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.device-table th, .device-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.device-table th {
    font-weight: 600;
    color: var(--text-highlight);
    background: rgba(0, 0, 0, 0.15);
}

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

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

/* Badges inside table */
.status-pill {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.status-pill.authorized {
    background: rgba(16, 185, 129, 0.12);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-pill.unauthorized {
    background: rgba(239, 68, 68, 0.12);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    animation: flash-badge-red 1s infinite alternate;
}

.status-pill.blocked {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Action button for table */
.btn-action {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-action:hover {
    background: var(--color-danger);
    border-color: var(--color-danger);
    color: white;
}

.btn-action.btn-unblock:hover {
    background: var(--color-success);
    border-color: var(--color-success);
}

/* Educational Card */
.education-card {
    grid-column: span 2;
}

.education-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 10px;
}

.step-card {
    background: rgba(0, 0, 0, 0.15);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    position: relative;
    padding-top: 35px;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

.step-card h3 {
    font-size: 15px;
    margin-bottom: 8px;
    color: var(--text-highlight);
}

.step-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Footer */
.app-footer {
    margin-top: 30px;
    padding: 20px 0;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(4, 7, 16, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: #111827;
    border: 2px solid var(--color-danger);
    border-radius: var(--border-radius);
    padding: 30px;
    width: 90%;
    max-width: 450px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(239, 68, 68, 0.25);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    font-size: 50px;
    color: var(--color-danger);
    margin-bottom: 15px;
    animation: pulse-icon 1s infinite alternate;
}

.modal-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.modal-content p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.modal-device-info {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 10px;
    text-align: left;
    font-size: 13px;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-device-info p {
    margin-bottom: 6px;
    color: var(--text-main);
}
.modal-device-info p:last-child {
    margin-bottom: 0;
}
.modal-device-info strong {
    color: var(--text-muted);
    display: inline-block;
    width: 110px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

/* Animations */
@keyframes pulse-logo {
    0% { box-shadow: 0 0 15px rgba(56, 189, 248, 0.4); }
    50% { box-shadow: 0 0 25px rgba(168, 85, 247, 0.6); }
    100% { box-shadow: 0 0 15px rgba(56, 189, 248, 0.4); }
}

@keyframes pulse-green {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-red {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

@keyframes pulse-badge {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}

@keyframes pulse-icon {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

@keyframes dash-line {
    to {
        stroke-dashoffset: -1000;
    }
}

@keyframes dash-line-reverse {
    to {
        stroke-dashoffset: 1000;
    }
}

@keyframes shake-node {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(2px, 2px) rotate(1deg); }
}

@keyframes glow-danger-node {
    0% { box-shadow: 0 0 10px rgba(239, 68, 68, 0.5); }
    100% { box-shadow: 0 0 25px rgba(239, 68, 68, 0.9); }
}

@keyframes flash-badge-red {
    0% { background: rgba(239, 68, 68, 0.12); box-shadow: 0 0 0px rgba(239, 68, 68, 0); }
    100% { background: rgba(239, 68, 68, 0.25); box-shadow: 0 0 8px rgba(239, 68, 68, 0.4); }
}

/* Shake animation for intrusion popup */
.animate-shake {
    animation: shake-popup 0.5s ease-in-out;
}

@keyframes shake-popup {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-6px); }
    20%, 40%, 60%, 80% { transform: translateX(6px); }
}

/* Media Queries for responsiveness */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .network-visual-card {
        grid-row: auto;
    }
    
    .inventory-card, .education-card {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    .app-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    .education-content {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
}