:root {
    --terminal-bg: #000000;
    --terminal-green: #00FF00;
    --terminal-bright-green: #39FF14;
    --terminal-dark-green: #008000;
    --terminal-red: #FF0000;
    --terminal-yellow: #FFFF00;
    --terminal-blue: #0080FF;
    --terminal-purple: #FF00FF;
    --terminal-cyan: #00FFFF;
    --terminal-gray: #808080;
    --terminal-white: #FFFFFF;
    --terminal-border: #00FF00;
}

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

body {
    font-family: 'Courier New', 'Monaco', 'Lucida Console', monospace;
    background: var(--terminal-bg);
    color: var(--terminal-green);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 255, 0, 0.03) 2px,
            rgba(0, 255, 0, 0.03) 4px
        );
    animation: scan-lines 2s linear infinite;
}

@keyframes scan-lines {
    0% { background-position: 0 0; }
    100% { background-position: 0 4px; }
}

.app-container {
    min-height: 100vh;
    max-width: 1000px;
    margin: 0 auto;
    border: 1px solid var(--terminal-border);
    background: rgba(0, 0, 0, 0.95);
    box-shadow: 
        0 0 50px var(--terminal-green),
        inset 0 0 50px rgba(0, 255, 0, 0.1);
}

/* Header */
.header {
    background: var(--terminal-bg);
    border-bottom: 1px solid var(--terminal-border);
    padding: 15px 20px;
    font-family: 'Courier New', monospace;
}

.terminal-banner {
    color: var(--terminal-bright-green);
    font-size: 12px;
    line-height: 1.2;
    margin-bottom: 10px;
    text-shadow: 0 0 10px var(--terminal-green);
}

.system-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--terminal-green);
    font-size: 14px;
    margin-top: 10px;
}

.logo h1 {
    color: var(--terminal-cyan);
    font-size: 16px;
    font-weight: normal;
    margin: 0;
    text-shadow: 0 0 5px var(--terminal-cyan);
}

.status-indicator {
    color: var(--terminal-yellow);
    font-size: 12px;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--terminal-red);
    margin-right: 5px;
    border-radius: 50%;
    animation: blink 1s infinite;
}

.status-dot.connected {
    background: var(--terminal-green);
    animation: none;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* Main Content */
.main-content {
    padding: 20px;
}

/* Terminal Sections */
.id-section, .call-section {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--terminal-border);
    margin: 20px 0;
    padding: 20px;
    box-shadow: 
        0 0 20px rgba(0, 255, 0, 0.3),
        inset 0 0 20px rgba(0, 255, 0, 0.1);
}

.terminal-header {
    color: var(--terminal-cyan);
    font-size: 14px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--terminal-border);
    padding-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.terminal-header::before {
    content: ">> ";
    color: var(--terminal-yellow);
}

.id-section h2, .call-section h2 {
    font-size: 14px;
    font-weight: normal;
    margin-bottom: 15px;
    color: var(--terminal-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.id-section h2::before, .call-section h2::before {
    content: "$ ";
    color: var(--terminal-green);
}

.id-display {
    margin-bottom: 15px;
}

.terminal-prompt {
    color: var(--terminal-green);
    margin-bottom: 10px;
}

.terminal-prompt::before {
    content: "root@terminal:~$ ";
    color: var(--terminal-yellow);
}

.id-code {
    background: rgba(0, 255, 0, 0.1);
    color: var(--terminal-bright-green);
    padding: 15px 25px;
    font-family: 'Courier New', monospace;
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 8px;
    text-align: center;
    border: 1px solid var(--terminal-green);
    margin: 15px 0;
    display: block;
    text-shadow: 0 0 10px var(--terminal-green);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 5px var(--terminal-green); }
    to { box-shadow: 0 0 20px var(--terminal-green), 0 0 30px var(--terminal-green); }
}

.copy-btn {
    background: transparent;
    border: 1px solid var(--terminal-green);
    color: var(--terminal-green);
    padding: 8px 20px;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    margin-top: 10px;
    display: block;
    width: 100px;
    margin-left: auto;
    margin-right: auto;
}

.copy-btn:hover {
    background: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 15px var(--terminal-green);
}

.copy-btn:active {
    background: var(--terminal-bright-green);
}

.id-description {
    color: var(--terminal-gray);
    font-size: 12px;
    margin-top: 15px;
    text-align: center;
}

.id-description::before {
    content: "// ";
    color: var(--terminal-purple);
}

/* Hacker Command Section */
.dial-container {
    margin: 20px 0;
}

.command-line {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.command-prompt {
    color: var(--terminal-yellow);
    margin-right: 10px;
    font-size: 14px;
}

.command-prompt::before {
    content: "hack@matrix:~$ connect ";
}

#dialInput {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--terminal-green);
    color: var(--terminal-bright-green);
    padding: 8px 0;
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 5px;
    text-align: center;
    width: 120px;
    outline: none;
    text-shadow: 0 0 5px var(--terminal-green);
}

#dialInput:focus {
    border-bottom: 2px solid var(--terminal-bright-green);
    box-shadow: 0 2px 10px rgba(0, 255, 0, 0.5);
}

#dialInput::placeholder {
    color: var(--terminal-dark-green);
    opacity: 0.7;
}

.call-btn {
    background: transparent;
    border: 1px solid var(--terminal-red);
    color: var(--terminal-red);
    padding: 10px 25px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-left: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.call-btn::before {
    content: ">> ";
    color: var(--terminal-yellow);
}

.call-btn:hover {
    background: var(--terminal-red);
    color: var(--terminal-bg);
    box-shadow: 
        0 0 20px var(--terminal-red),
        inset 0 0 20px rgba(255, 0, 0, 0.2);
    text-shadow: 0 0 5px var(--terminal-bg);
}

.call-btn:active {
    transform: scale(0.98);
}

/* Active Connection Display */
.call-status {
    background: rgba(0, 0, 0, 0.9);
    border: 1px solid var(--terminal-red);
    margin: 20px 0;
    padding: 20px;
    box-shadow: 
        0 0 25px rgba(255, 0, 0, 0.4),
        inset 0 0 25px rgba(255, 0, 0, 0.1);
}

.call-info {
    margin-bottom: 20px;
    padding: 15px;
    border: 1px dashed var(--terminal-yellow);
    background: rgba(255, 255, 0, 0.05);
}

.connection-header {
    color: var(--terminal-red);
    font-size: 14px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.connection-header::before {
    content: "[ACTIVE CONNECTION] ";
    color: var(--terminal-yellow);
    animation: blink 1s infinite;
}

.call-avatar {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--terminal-cyan);
}

.call-details h3 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--terminal-cyan);
    font-family: 'Courier New', monospace;
    text-shadow: 0 0 5px var(--terminal-cyan);
}

.call-details h3::before {
    content: "TARGET: ";
    color: var(--terminal-yellow);
}

.call-details p {
    color: var(--terminal-green);
    font-size: 12px;
    margin-top: 5px;
}

.call-details p::before {
    content: "STATUS: ";
    color: var(--terminal-purple);
}

.call-controls {
    margin: 20px 0;
    text-align: center;
}

.control-btn {
    background: transparent;
    border: 1px solid var(--terminal-yellow);
    color: var(--terminal-yellow);
    padding: 10px 20px;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 11px;
    font-weight: bold;
    margin: 0 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.mute-btn:hover, .end-call-btn:hover {
    box-shadow: 0 0 15px currentColor;
}

.mute-btn {
    border-color: var(--terminal-blue);
    color: var(--terminal-blue);
}

.mute-btn.muted {
    background: var(--terminal-blue);
    color: var(--terminal-bg);
}

.end-call-btn {
    border-color: var(--terminal-red);
    color: var(--terminal-red);
}

.end-call-btn:hover {
    background: var(--terminal-red);
    color: var(--terminal-bg);
}

.control-btn:active {
    transform: scale(0.95);
}

/* Intrusion Alert Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: alert-flash 0.5s ease-in-out infinite alternate;
}

@keyframes alert-flash {
    0% { background: rgba(0, 0, 0, 0.9); }
    100% { background: rgba(255, 0, 0, 0.1); }
}

.modal {
    background: var(--terminal-bg);
    border: 2px solid var(--terminal-red);
    text-align: center;
    max-width: 400px;
    width: 90%;
    padding: 25px;
    box-shadow: 
        0 0 50px var(--terminal-red),
        inset 0 0 50px rgba(255, 0, 0, 0.1);
    animation: modal-pulse 1s ease-in-out infinite;
}

@keyframes modal-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.modal-header h3 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--terminal-red);
    background: rgba(255, 0, 0, 0.2);
    padding: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: 1px solid var(--terminal-red);
    text-shadow: 0 0 10px var(--terminal-red);
}

.modal-header h3::before {
    content: "⚠ ALERT ⚠ ";
    color: var(--terminal-yellow);
    animation: blink 0.5s infinite;
}

.incoming-call-avatar {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--terminal-red);
    animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.incoming-caller {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--terminal-cyan);
    font-family: 'Courier New', monospace;
    text-shadow: 0 0 5px var(--terminal-cyan);
}

.incoming-caller::before {
    content: "INCOMING FROM: ";
    color: var(--terminal-yellow);
    font-size: 12px;
    display: block;
    margin-bottom: 5px;
}

.incoming-subtitle {
    color: var(--terminal-green);
    margin-bottom: 25px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.modal-btn {
    background: transparent;
    border: 2px solid;
    padding: 12px 25px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    min-width: 100px;
}

.decline-btn {
    border-color: var(--terminal-red);
    color: var(--terminal-red);
}

.decline-btn:hover {
    background: var(--terminal-red);
    color: var(--terminal-bg);
    box-shadow: 0 0 20px var(--terminal-red);
}

.accept-btn {
    border-color: var(--terminal-green);
    color: var(--terminal-green);
}

.accept-btn:hover {
    background: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 20px var(--terminal-green);
}

.modal-btn:active {
    transform: scale(0.95);
}

/* Terminal Status Bar */
.footer {
    background: var(--terminal-bg);
    border-top: 1px solid var(--terminal-border);
    padding: 10px 20px;
    color: var(--terminal-gray);
    font-size: 10px;
    font-family: 'Courier New', monospace;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer::before {
    content: "[SYSTEM STATUS: ONLINE] ";
    color: var(--terminal-green);
}

.footer::after {
    content: "| ENCRYPTION: AES-256 | SECURE LINE ACTIVE";
    color: var(--terminal-cyan);
}

/* Mobile Terminal Adaptation */
@media (max-width: 768px) {
    .app-container {
        margin: 0;
        border: none;
        border-top: 1px solid var(--terminal-border);
        border-bottom: 1px solid var(--terminal-border);
    }
    
    .header {
        padding: 10px 15px;
    }
    
    .terminal-banner {
        font-size: 10px;
    }
    
    .system-info {
        flex-direction: column;
        gap: 5px;
    }
    
    .id-section, .call-section {
        margin: 15px 10px;
        padding: 15px;
    }
    
    .command-line {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .command-prompt {
        font-size: 12px;
    }
    
    #dialInput {
        width: 100%;
        max-width: 200px;
    }
    
    .call-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .modal {
        margin: 20px;
        padding: 20px;
    }
    
    .modal-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .modal-btn {
        width: 100%;
    }
    
    .footer {
        flex-direction: column;
        gap: 5px;
        text-align: center;
        font-size: 9px;
    }
}

/* Terminal Focus Effects */
button:focus, input:focus {
    outline: 1px solid var(--terminal-cyan);
    outline-offset: 2px;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* Cursor Blink Effect */
.cursor::after {
    content: "_";
    color: var(--terminal-green);
    animation: cursor-blink 1s infinite;
}

@keyframes cursor-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}