/* TRON Legacy Theme - Futuristic Neon Design */
:root.tron-theme {
    /* TRON Color Palette */
    --primary-color: #000000;
    --primary-dark: #0A0A0A;
    --secondary-color: #00FFFF;  /* Cyan */
    --accent-color: #00FFFF;     /* Cyan glow */
    --speaker-color: #111111;
    --background: linear-gradient(135deg, #000000 0%, #001122 50%, #000000 100%);
    --surface: #0F0F0F;
    --text-primary: #00FFFF;
    --text-secondary: #88CCDD;
    --danger: #FF0040;
    --success: #00FF00;
    --border-radius: 4px;
    --shadow: 0 0 20px rgba(0,255,255,0.5);
    --shadow-elevated: 0 0 40px rgba(0,255,255,0.8);
    --incoming-call-color: #00FF00;
    
    /* TRON Gradients */
    --metallic-gradient: linear-gradient(145deg, #1A1A1A 0%, #000000 50%, #1A1A1A 100%);
    --button-gradient: linear-gradient(145deg, #003366 0%, #001122 100%);
    --ptt-gradient: linear-gradient(145deg, #BF00FF 0%, #9900CC 50%, #7D00FF 100%);
    --ptt-pressed-gradient: linear-gradient(145deg, #FF00FF 0%, #CC00CC 50%, #BF00FF 100%);
    --antenna-gradient: linear-gradient(180deg, #00FFFF 0%, #0099CC 100%);
    --display-gradient: linear-gradient(145deg, #000000 0%, #001122 100%);
    
    /* TRON Glow Effects */
    --cyan-glow: 0 0 10px #00FFFF, 0 0 20px #00FFFF, 0 0 30px #00FFFF;
    --green-glow: 0 0 10px #00FF00, 0 0 20px #00FF00, 0 0 30px #00FF00;
    --blue-glow: 0 0 10px #0080FF, 0 0 20px #0080FF, 0 0 30px #0080FF;
    --purple-glow: 0 0 10px #BF00FF, 0 0 20px #BF00FF, 0 0 30px #BF00FF;
    --grid-pattern: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 9px,
        rgba(0,255,255,0.1) 10px,
        rgba(0,255,255,0.1) 11px
    ),
    repeating-linear-gradient(
        0deg,
        transparent,
        transparent 9px,
        rgba(0,255,255,0.1) 10px,
        rgba(0,255,255,0.1) 11px
    );
}

/* TRON Body Structure */
body.tron-theme {
    font-family: 'Orbitron', 'Roboto Mono', monospace;
    background: var(--background);
    color: var(--text-primary);
    overflow: hidden;
    text-shadow: 0 0 5px currentColor;
}

/* Main TRON Container */
#mainScreen.tron-theme {
    background: var(--primary-color);
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    margin: 4px;
    box-shadow: 
        inset 0 0 50px rgba(0,255,255,0.1),
        var(--shadow-elevated);
    position: relative;
    overflow: hidden;
}

#mainScreen.tron-theme::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--grid-pattern);
    opacity: 0.3;
    pointer-events: none;
    z-index: 1;
}

/* TRON Header */
.tron-theme .app-header {
    background: var(--primary-color);
    color: var(--text-primary);
    padding: 20px;
    box-shadow: 
        0 2px 20px rgba(0,255,255,0.5),
        inset 0 0 20px rgba(0,255,255,0.1);
    border-bottom: 2px solid var(--accent-color);
    position: relative;
    z-index: 10;
}

/* TRON LCD Display Effect */
.tron-theme .header-left h1 {
    font-family: 'Orbitron', monospace;
    font-size: 22px;
    font-weight: 700;
    color: var(--accent-color);
    text-shadow: var(--cyan-glow);
    letter-spacing: 4px;
    background: rgba(0,0,0,0.9);
    padding: 15px 25px;
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.tron-theme .header-left h1::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,255,0.3), transparent);
    animation: tron-scan 2s infinite;
}

@keyframes tron-scan {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* TRON Status Indicators */
.tron-theme .connection-status {
    background: rgba(0,0,0,0.8);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: 8px 15px;
    font-family: 'Orbitron', monospace;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: var(--shadow);
}

.tron-theme .connection-status.online {
    color: var(--success);
    border-color: var(--success);
    box-shadow: var(--green-glow);
    text-shadow: var(--green-glow);
}

.tron-theme .connection-status.offline {
    color: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 0 15px rgba(255,0,64,0.5);
    text-shadow: 0 0 10px var(--danger);
}

/* TRON PTT Button - BLACK BACKGROUND */
.tron-theme .ptt-button {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: var(--ptt-gradient);
    color: var(--primary-color);
    border: 4px solid #BF00FF;
    box-shadow: 
        var(--purple-glow),
        inset 0 0 30px rgba(191,0,255,0.2);
    position: relative;
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 18px;
    text-shadow: 0 0 10px currentColor;
    z-index: 10;
}

/* PTT Container - BLACK BACKGROUND */
.tron-theme .ptt-container {
    background: var(--primary-color) !important;
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    box-shadow: 
        inset 0 0 30px rgba(0,255,255,0.1),
        var(--shadow);
    position: relative;
    padding: 30px;
}

/* PTT Button Glow Ring */
.tron-theme .ptt-button::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    border-radius: 50%;
    border: 2px solid #BF00FF;
    opacity: 0;
    transition: opacity 0.3s ease;
    animation: tron-pulse 2s infinite;
}

@keyframes tron-pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

/* PTT Button Active State */
.tron-theme .ptt-button:active,
.tron-theme .ptt-button.recording {
    background: var(--ptt-pressed-gradient);
    transform: scale(1.05);
    box-shadow: 
        var(--purple-glow),
        inset 0 0 40px rgba(191,0,255,0.3);
    color: var(--primary-color);
    text-shadow: 0 0 15px #BF00FF;
}

.tron-theme .ptt-button:active::before,
.tron-theme .ptt-button.recording::before {
    opacity: 1;
    border-color: #BF00FF;
    animation: tron-recording-pulse 1s infinite;
}

@keyframes tron-recording-pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

/* TRON Bottom Navigation */
.tron-theme .bottom-nav {
    background: var(--primary-color);
    box-shadow: 
        0 -2px 20px rgba(0,255,255,0.5),
        inset 0 0 20px rgba(0,255,255,0.1);
    border-top: 2px solid var(--accent-color);
    border-radius: 0;
    position: relative;
    z-index: 10;
}

/* TRON Navigation Items - SAME COLOR AS PTT BUTTON */
.tron-theme .nav-item {
    background: none;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    transition: all 0.3s ease;
    border-radius: var(--border-radius);
    margin: 8px 4px;
    position: relative;
    text-shadow: 0 0 5px currentColor;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.tron-theme .nav-item:hover {
    background: rgba(0,255,255,0.1);
    color: var(--accent-color);
    text-shadow: var(--cyan-glow);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.tron-theme .nav-item.active {
    color: var(--accent-color);
    background: rgba(0,255,255,0.2);
    box-shadow: 
        inset 0 0 20px rgba(0,255,255,0.3),
        var(--cyan-glow);
    text-shadow: var(--cyan-glow);
    border-color: var(--accent-color);
}

/* TRON Content Area */
.tron-theme .content {
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    margin: 15px;
    box-shadow: 
        inset 0 0 30px rgba(0,255,255,0.1),
        var(--shadow);
    position: relative;
    z-index: 5;
}

/* TRON Recipient Selector */
.tron-theme .recipient-selector {
    background: var(--primary-color);
    border: 2px solid var(--accent-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    color: var(--text-primary);
    position: relative;
}

.tron-theme .recipient-selector:hover {
    border-color: var(--accent-color);
    box-shadow: var(--cyan-glow);
    text-shadow: 0 0 5px currentColor;
}

/* TRON Buttons */
.tron-theme .btn-primary {
    background: var(--button-gradient);
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    box-shadow: var(--shadow);
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    text-shadow: 0 0 5px currentColor;
    border-radius: var(--border-radius);
}

.tron-theme .btn-primary:hover {
    border-color: var(--accent-color);
    box-shadow: var(--cyan-glow);
    color: var(--accent-color);
    text-shadow: var(--cyan-glow);
    transform: translateY(-2px);
}

/* TRON Logout and Settings Buttons - SAME COLOR AS ICONS/PTT */
.tron-theme .logout-btn,
.tron-theme .setup-btn,
.tron-theme .btn-danger {
    background: var(--button-gradient) !important;
    color: var(--accent-color) !important;
    border: 2px solid var(--accent-color) !important;
    box-shadow: var(--shadow) !important;
    font-family: 'Orbitron', monospace !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
    font-weight: 600 !important;
    text-shadow: 0 0 5px currentColor !important;
    border-radius: var(--border-radius) !important;
}

.tron-theme .logout-btn:hover,
.tron-theme .setup-btn:hover,
.tron-theme .btn-danger:hover {
    border-color: var(--accent-color) !important;
    box-shadow: var(--cyan-glow) !important;
    color: var(--accent-color) !important;
    text-shadow: var(--cyan-glow) !important;
    transform: translateY(-1px) !important;
    background: rgba(0,255,255,0.1) !important;
}

/* TRON Contact Items - SAME COLOR AS PTT BUTTON */
.tron-theme .contact-item,
.tron-theme .group-item {
    background: var(--primary-color);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    box-shadow: var(--shadow);
    position: relative;
    border-radius: var(--border-radius);
    text-shadow: 0 0 3px currentColor;
}

.tron-theme .contact-item:hover,
.tron-theme .group-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--cyan-glow);
    color: var(--accent-color);
    text-shadow: var(--cyan-glow);
    background: rgba(0,255,255,0.1);
    transform: translateY(-1px);
}

/* TRON Contact Display and Lists - Same color as icons/PTT */
.tron-theme .selected-contact-display,
.tron-theme .contacts-list-container {
    background: var(--primary-color) !important;
    border: 2px solid var(--accent-color) !important;
    color: var(--accent-color) !important;
    text-shadow: 0 0 5px currentColor !important;
}

.tron-theme .contacts-list-container > div:first-child {
    background: var(--primary-color) !important;
    color: var(--accent-color) !important;
    border-bottom: 1px solid var(--accent-color) !important;
    text-shadow: 0 0 3px currentColor !important;
}

/* Hide or restyle any blue "more" buttons */
.tron-theme .more-btn,
.tron-theme .show-more-btn,
.tron-theme button[style*="blue"],
.tron-theme button[style*="#"] {
    background: var(--button-gradient) !important;
    color: var(--accent-color) !important;
    border: 1px solid var(--accent-color) !important;
    box-shadow: var(--shadow) !important;
    text-shadow: 0 0 3px currentColor !important;
}

/* Hide specific elements that might be blue buttons in talking to box */
.tron-theme .contacts-list-container button,
.tron-theme .selected-contact-display button {
    display: none !important; /* Hide any buttons in these containers */
}

/* TRON Message Items */
.tron-theme .message-item {
    background: var(--primary-color);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    color: var(--text-primary);
    position: relative;
}

/* TRON Modal Styling */
.tron-theme .modal-content {
    background: var(--primary-color);
    border: 2px solid var(--accent-color);
    box-shadow: var(--shadow-elevated);
    color: var(--text-primary);
    position: relative;
    border-radius: var(--border-radius);
}

/* TRON Scrollbars */
.tron-theme ::-webkit-scrollbar {
    width: 12px;
}

.tron-theme ::-webkit-scrollbar-track {
    background: var(--primary-dark);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
}

.tron-theme ::-webkit-scrollbar-thumb {
    background: var(--button-gradient);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.tron-theme ::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
    box-shadow: var(--cyan-glow);
}

/* TRON Loading States */
.tron-theme .spinner {
    border: 3px solid var(--primary-dark);
    border-top: 3px solid var(--accent-color);
    box-shadow: var(--cyan-glow);
}

/* TRON Input Fields */
.tron-theme input[type="text"],
.tron-theme input[type="email"],
.tron-theme input[type="password"] {
    background: var(--primary-color);
    color: var(--text-primary);
    border: 2px solid var(--accent-color);
    font-family: 'Orbitron', monospace;
    box-shadow: inset 0 0 10px rgba(0,255,255,0.1);
    border-radius: var(--border-radius);
    text-shadow: 0 0 3px currentColor;
}

.tron-theme input[type="text"]:focus,
.tron-theme input[type="email"]:focus,
.tron-theme input[type="password"]:focus {
    border-color: var(--accent-color);
    box-shadow: 
        inset 0 0 10px rgba(0,255,255,0.2),
        var(--cyan-glow);
    color: var(--accent-color);
    text-shadow: var(--cyan-glow);
}

/* TRON Error States */
.tron-theme .error {
    background: rgba(255, 0, 64, 0.1);
    border: 2px solid var(--danger);
    color: var(--danger);
    box-shadow: 0 0 15px rgba(255, 0, 64, 0.5);
    text-shadow: 0 0 10px var(--danger);
}

/* TRON Success States */
.tron-theme .success {
    background: rgba(0, 255, 0, 0.1);
    border: 2px solid var(--success);
    color: var(--success);
    box-shadow: var(--green-glow);
    text-shadow: var(--green-glow);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .tron-theme #mainScreen {
        margin: 0;
        border-radius: 0;
    }
    
    .tron-theme .ptt-button {
        width: 220px;
        height: 220px;
        font-size: 16px;
    }
}

@media (min-width: 1024px) {
    .tron-theme .ptt-button {
        width: 320px;
        height: 320px;
        font-size: 22px;
    }
    
    .tron-theme #mainScreen {
        max-width: 1000px;
        margin: 20px auto;
        box-shadow: 
            var(--shadow-elevated),
            inset 0 0 50px rgba(0,255,255,0.1);
    }
}

/* TRON Theme Selector Preview */
.theme-preview.tron-theme {
    background: var(--primary-color);
    border-color: var(--accent-color);
    box-shadow: var(--cyan-glow);
}

.theme-preview.tron-theme::after {
    background: var(--accent-color);
    box-shadow: 0 0 5px var(--accent-color);
}

/* Special TRON Effects */
.tron-theme .tron-circuit {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, transparent 49%, var(--accent-color) 50%, transparent 51%),
        linear-gradient(0deg, transparent 49%, var(--accent-color) 50%, transparent 51%);
    opacity: 0.1;
    pointer-events: none;
    z-index: 1;
}

/* TRON Glow Animation */
@keyframes tron-glow {
    0%, 100% { 
        text-shadow: var(--cyan-glow);
        box-shadow: var(--cyan-glow);
    }
    50% { 
        text-shadow: 0 0 5px #00FFFF, 0 0 10px #00FFFF, 0 0 15px #00FFFF;
        box-shadow: 0 0 15px rgba(0,255,255,0.8);
    }
}

.tron-theme .tron-animate {
    animation: tron-glow 2s infinite ease-in-out;
}