:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #121824;
    --glass-bg: rgba(18, 24, 36, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent-blue: #0284c7;
    --accent-cyan: #06b6d4;
    --accent-red: #ef4444;
    --accent-green: #10b981;
    --accent-warning: #f59e0b;
    --font-sans: 'Outfit', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --shadow-neon-red: 0 0 15px rgba(239, 68, 68, 0.4);
    --shadow-neon-cyan: 0 0 15px rgba(6, 182, 212, 0.4);
    --shadow-neon-green: 0 0 15px rgba(16, 185, 129, 0.4);
}

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

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

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.logo-icon {
    font-size: 1.8rem;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-grow: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.85rem 1.25rem;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 600;
    text-align: left;
    transition: all 0.3s ease;
}

.nav-item:hover, .nav-item.active {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    box-shadow: inset 4px 0 0 var(--accent-cyan);
    background-color: rgba(6, 182, 212, 0.1);
}

.sidebar-footer {
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
    text-align: center;
}

/* Main Content */
.main-content {
    flex-grow: 1;
    padding: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
    width: calc(100% - 280px);
}

.header-section {
    margin-bottom: 2.5rem;
}

.header-section h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Grid Layout & Cards */
.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
}

.card {
    padding: 2rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.card.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.card.full-width {
    grid-column: 1 / span 2;
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Tab Switching Control */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

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

/* Buttons */
.controls-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.primary-btn {
    background-color: var(--accent-blue);
    color: #fff;
}
.primary-btn:hover {
    background-color: #0270a8;
    box-shadow: 0 0 12px rgba(2, 132, 199, 0.4);
}

.accent-btn {
    background-color: var(--accent-cyan);
    color: #0a0e17;
}
.accent-btn:hover {
    background-color: #0891b2;
    box-shadow: var(--shadow-neon-cyan);
}

.secondary-btn {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}
.secondary-btn:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.success-btn {
    background-color: var(--accent-green);
    color: #fff;
}
.success-btn:hover {
    background-color: #0d9488;
    box-shadow: var(--shadow-neon-green);
}

.danger-btn {
    background-color: var(--accent-red);
    color: #fff;
}
.danger-btn:hover {
    background-color: #dc2626;
    box-shadow: var(--shadow-neon-red);
}

.warning-btn {
    background-color: var(--accent-warning);
    color: #fff;
}
.warning-btn:hover {
    background-color: #d97706;
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
}

/* Status Meters */
.status-meter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.meter-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
}

.meter-bar {
    height: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.meter-fill {
    height: 100%;
    background-color: var(--accent-cyan);
    width: 0%;
    transition: width 0.3s ease;
}

.meter-fill.warning {
    background-color: var(--accent-warning);
}

/* Text utility styles */
.font-code {
    font-family: var(--font-mono);
}
.text-warning {
    color: var(--accent-warning);
}
.text-success {
    color: var(--accent-green);
}
.font-glow {
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}
.font-glow-red {
    text-shadow: 0 0 10px rgba(239, 68, 68, 0.8);
}

/* Visualizer Cards & Network Animations */
.visualizer-card {
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

.network-vis {
    flex-grow: 1;
    position: relative;
    border: 1px dashed var(--glass-border);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.2);
    overflow: hidden;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 2rem;
}

.node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 2;
    background: rgba(18, 24, 36, 0.9);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.node-icon {
    font-size: 2.2rem;
}

.node.attacker {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    border-color: rgba(239, 68, 68, 0.3);
}

.packet-flow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.vis-packet {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-cyan);
    box-shadow: var(--shadow-neon-cyan);
    top: 50%;
    transform: translateY(-50%);
    animation: flowLeftToRight 1.5s linear infinite;
}

.vis-packet.arp {
    background-color: var(--accent-warning);
    box-shadow: 0 0 8px var(--accent-warning);
}

.vis-packet.deauth {
    background-color: var(--accent-red);
    box-shadow: var(--shadow-neon-red);
}

.vis-packet.handshake {
    background-color: var(--accent-green);
    box-shadow: var(--shadow-neon-green);
}

@keyframes flowLeftToRight {
    0% { left: 25%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 75%; opacity: 0; }
}

@keyframes flowAttackerToClient {
    0% { left: 50%; top: 75%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 70%; top: 45%; opacity: 0; }
}

@keyframes flowAttackerToRouter {
    0% { left: 50%; top: 75%; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 30%; top: 45%; opacity: 0; }
}

/* Rogue AP & Evil Twin Styles */
.dbm-indicators {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.5rem;
}

.dbm-bar-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
}

.dbm-visual {
    height: 20px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    overflow: hidden;
}

.dbm-visual .fill {
    height: 100%;
    color: #fff;
    font-weight: 600;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    padding-left: 0.5rem;
    transition: width 0.5s ease, background-color 0.5s ease;
}

.dbm-visual .fill.green {
    background-color: var(--accent-green);
}

.dbm-visual .fill.red {
    background-color: var(--accent-red);
}

.network-vis.rogue {
    justify-content: space-around;
}

.network-vis.rogue #rogue-legit-ap {
    position: absolute;
    left: 2rem;
    top: 2rem;
}

.network-vis.rogue #rogue-attacker-ap {
    position: absolute;
    left: 2rem;
    bottom: 2rem;
    transition: opacity 0.5s ease;
}

.network-vis.rogue #rogue-client {
    position: absolute;
    right: 4rem;
    top: 50%;
    transform: translateY(-50%);
}

/* Bluetooth Specific Styles */
.device-scan-list {
    min-height: 120px;
    max-height: 180px;
    overflow-y: auto;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.device-item {
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s;
}

.device-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.device-item.selected {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
}

.bt-visualizer-box {
    flex-grow: 1;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.5rem;
    background: rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
}

.bt-node {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    font-weight: 600;
    z-index: 2;
}

.bt-connector {
    position: absolute;
    left: 120px;
    right: 150px;
    height: 4px;
    background: dashed rgba(255,255,255,0.1);
    z-index: 1;
}

.bt-connector.active {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
    box-shadow: var(--shadow-neon-cyan);
    animation: pulse 1s infinite alternate;
}

.bt-connector.active-red {
    background: linear-gradient(90deg, var(--accent-red), var(--accent-warning));
    box-shadow: var(--shadow-neon-red);
    animation: pulse 1s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

/* Crack Area styles */
.crack-action-row {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.key-display-box {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    display: flex;
    gap: 1rem;
    align-items: center;
    font-weight: 600;
}

.decrypted-message-box {
    margin-top: 1rem;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.decrypted-message-box h4 {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.terminal-view {
    background: #030712;
    border-radius: 8px;
    padding: 1rem;
    min-height: 120px;
    max-height: 200px;
    overflow-y: auto;
    font-size: 0.85rem;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    border: 1px solid rgba(255,255,255,0.05);
}

.terminal-view span {
    display: block;
}

.terminal-view .system-line {
    color: var(--text-secondary);
}
.terminal-view .danger-line {
    color: var(--accent-red);
}
.terminal-view .success-line {
    color: var(--accent-green);
}
.terminal-view .warn-line {
    color: var(--accent-warning);
}

/* WPA2 Extra classes */
.handshake-status-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    font-weight: 600;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-red);
    box-shadow: var(--shadow-neon-red);
}

.status-indicator.success {
    background-color: var(--accent-green);
    box-shadow: var(--shadow-neon-green);
}

.dictionary-setup {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
}

.dict-select-col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.dict-select-col label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.custom-select {
    padding: 0.75rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    cursor: pointer;
}

.dictionary-terminal {
    margin-top: 1.5rem;
    min-height: 180px;
}

/* Toggle Switch Styling */
.router-toggles {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.toggle-control {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    flex-shrink: 0;
    margin-top: 2px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border: 1px solid var(--glass-border);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--accent-cyan);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--accent-cyan);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.toggle-label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.toggle-label strong {
    font-size: 0.95rem;
    color: #fff;
}

.toggle-label span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Security Shield / Dashboard styles */
.security-dashboard {
    align-items: center;
    justify-content: center;
}

.shield-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.shield-graphic {
    font-size: 5rem;
    filter: drop-shadow(0 0 20px rgba(239, 68, 68, 0.4));
    transition: all 0.5s ease;
}

.shield-graphic.secure {
    filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.4));
}

#shield-rating {
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 2px;
    transition: color 0.3s;
}

#shield-explanation {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
    max-width: 280px;
    line-height: 1.5;
}

.defense-checklist {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.checklist-item {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
}

/* FAQ Grid */
.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.faq-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.faq-item strong {
    font-size: 1rem;
    color: #fff;
}

.faq-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Responsive fixes */
@media (max-width: 1024px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
    .card.full-width {
        grid-column: span 1;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
    }
    .main-content {
        width: 100%;
        padding: 1.5rem;
    }
}