/* =============================================
   ECHO_OFF PWA - JAVA CONSOLE STYLE
   Version: 2.5.0 - Gray Fade & Encryption Indicator
   ============================================= */

/* Import Monospace Font */
@import url('https://fonts.googleapis.com/css2?family=Courier+Prime&family=VT323&display=swap');

/* =============================================
   ROOT VARIABLES - Java Console Colors
   ============================================= */
:root {
    --console-black: #000000;
    --console-green: #808080; /* Gray for most UI text */
    --console-green-dark: #606060;
    --console-gray: #808080;
    --message-green: #00CC00; /* Green for new messages */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    /* Security: Prevent text selection and copy */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* =============================================
   BODY & MAIN LAYOUT
   ============================================= */
body {
    font-family: 'Courier Prime', 'Courier New', monospace;
    background-color: var(--console-black);
    color: var(--console-green);
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    position: relative;
    font-size: clamp(14px, 2.5vw, 16px);
    line-height: 1.6;
    overflow-x: hidden;
    padding: 20px;
}

/* =============================================
   BOOT SCREEN
   ============================================= */
.boot-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--console-black);
    color: var(--console-green);
    display: none;
    align-items: flex-start;
    justify-content: flex-start;
    z-index: 9999;
    padding: 20px;
    overflow-y: auto;
}

.boot-screen.active {
    display: flex;
}

.boot-content {
    width: 100%;
    max-width: 100%;
}

.boot-text {
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    line-height: 1.6;
    color: var(--console-green);
    white-space: pre-wrap;
    word-wrap: break-word;
    animation: fadeIn 2s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.cursor-blink {
    font-size: clamp(14px, 2.5vw, 16px);
    animation: blink 0.7s infinite;
}

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

/* =============================================
   TERMINAL CONTAINER
   ============================================= */
.dos-terminal {
    width: 100%;
    max-width: 100%;
    background-color: var(--console-black);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.dos-terminal.hidden {
    display: none;
}

/* Remove all Windows 95 styling */
.dos-title-bar,
.dos-menu-bar,
.dos-controls {
    display: none;
}

/* =============================================
   SCREEN CONTENT AREA
   ============================================= */
.screen {
    display: none;
    background-color: var(--console-black);
    color: var(--console-green);
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    line-height: 1.6;
    -webkit-overflow-scrolling: touch;
}

.screen.active {
    display: block;
}

/* =============================================
   WELCOME SCREEN
   ============================================= */
.welcome-header {
    margin-bottom: 30px;
}

.title-main {
    color: var(--console-green);
    font-size: clamp(24px, 5vw, 32px);
    font-weight: normal;
    margin: 20px 0;
    letter-spacing: 2px;
}

.title-subtitle {
    color: var(--console-green);
    font-size: clamp(14px, 2.5vw, 16px);
    margin: 10px 0;
}

.welcome-info {
    color: var(--console-green);
    margin: 20px 0;
    line-height: 1.8;
}

.welcome-info p {
    margin: 8px 0;
    font-size: clamp(14px, 2.5vw, 16px);
}

.prompt-text {
    color: var(--console-green);
    font-size: clamp(14px, 2.5vw, 16px);
    margin: 30px 0 15px 0;
}

/* =============================================
   SCREEN HEADERS
   ============================================= */
.screen-header {
    margin-bottom: 20px;
}

.screen-title {
    color: var(--console-green);
    font-size: clamp(18px, 4vw, 22px);
    font-weight: normal;
    margin: 0 0 20px 0;
    text-transform: uppercase;
}

.warning-text {
    color: var(--console-green);
    font-size: clamp(13px, 2.5vw, 15px);
    margin: 5px 0;
    opacity: 0.8;
}

/* =============================================
   BUTTONS - Simple brackets style
   ============================================= */
.dos-button-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
    width: 100%;
}

.dos-button {
    width: 100%;
    min-height: 48px;
    padding: 12px 20px;
    background-color: transparent;
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
    touch-action: manipulation;
}

.dos-button:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

.dos-button:active {
    opacity: 0.7;
}

.dos-button.primary {
    background-color: transparent;
    border: 1px solid var(--console-green);
}

.dos-button-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.dos-button-small {
    flex: 1;
    padding: 12px 20px;
    background-color: transparent;
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    cursor: pointer;
    min-height: 48px;
    touch-action: manipulation;
    transition: all 0.2s;
}

.dos-button-small:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

.dos-button-close {
    background-color: transparent;
    border: 1px solid var(--console-green);
    color: var(--console-green);
    padding: 12px 20px;
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    cursor: pointer;
    min-height: 48px;
    touch-action: manipulation;
    transition: all 0.2s;
    margin-bottom: 15px;
}

.dos-button-close:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

/* =============================================
   INPUTS - Simple green border
   ============================================= */
.dos-input-group {
    margin: 15px 0;
    width: 100%;
}

.dos-input {
    width: 100%;
    padding: 12px;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    outline: none;
    min-height: 48px;
}

.dos-input:focus {
    border-color: var(--console-green);
    box-shadow: 0 0 5px var(--console-green);
}

.dos-id-display {
    display: flex;
    flex-direction: column;
    margin: 15px 0;
    gap: 10px;
}

.dos-input-id {
    width: 100%;
    padding: 12px;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    outline: none;
    min-height: 48px;
    text-align: center;
    font-weight: bold;
    letter-spacing: 2px;
}

.dos-button-row {
    display: flex;
    gap: 10px;
    width: 100%;
}

/* =============================================
   CHAT AREA
   ============================================= */
.dos-chat-header {
    margin-bottom: 20px;
}

.chat-header-info {
    margin-bottom: 15px;
}

.chat-title {
    color: var(--console-green);
    font-size: clamp(14px, 2.5vw, 16px);
    margin: 0 0 15px 0;
}

.peer-id {
    color: var(--console-green);
    font-weight: bold;
}

.dos-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    padding: 15px;
    min-height: 300px;
    max-height: 50vh;
    margin-bottom: 15px;
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    line-height: 1.6;
    -webkit-overflow-scrolling: touch;
}

.message {
    margin-bottom: 15px;
    padding: 10px 0;
    border-left: 2px solid var(--console-gray); /* Gray border */
    padding-left: 10px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.message.sent {
    border-left-color: var(--console-gray);
}

.message.received {
    border-left-color: var(--console-gray);
}

.message.system {
    border-left-color: var(--console-gray);
    color: var(--console-gray);
    opacity: 0.7;
}

.message-header {
    color: var(--console-gray);
    font-size: clamp(12px, 2vw, 14px);
    margin-bottom: 5px;
}

.message-body {
    color: var(--message-green); /* Start with green for new messages */
    word-wrap: break-word;
}

.message-body.read {
    color: var(--console-gray); /* Gray for read messages */
}

.message-encrypted {
    animation: decrypt-glitch 0.1s infinite;
}

@keyframes decrypt-glitch {
    0% { opacity: 1; }
    50% { opacity: 0.8; }
    100% { opacity: 1; }
}

/* =============================================
   INPUT BAR
   ============================================= */
.dos-input-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--console-black);
    padding: 10px 0;
    border: 1px solid var(--console-green);
    padding: 10px;
    flex-wrap: wrap;
}

.prompt {
    color: var(--console-green);
    font-weight: bold;
    font-size: clamp(14px, 2.5vw, 16px);
    flex-shrink: 0;
}

.dos-message-input {
    flex: 1;
    min-width: 200px;
    padding: 10px;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    outline: none;
    min-height: 44px;
}

.dos-message-input:focus {
    box-shadow: 0 0 5px var(--console-green);
}

.dos-send-button {
    padding: 10px 20px;
    background-color: transparent;
    border: 1px solid var(--console-green);
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
    transition: all 0.2s;
}

.dos-send-button:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

/* =============================================
   PWA INSTALL PROMPT - Simplified
   ============================================= */
.install-prompt {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
}

.install-prompt.hidden {
    display: none;
}

.dos-window {
    background-color: var(--console-black);
    border: 2px solid var(--console-green);
    padding: 20px;
    width: 100%;
    max-width: 500px;
}

.dos-window .dos-title-bar {
    display: block;
    background: transparent;
    color: var(--console-green);
    padding: 0 0 15px 0;
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    border-bottom: 1px solid var(--console-green);
    margin-bottom: 15px;
}

.dos-close {
    float: right;
    background: transparent;
    border: 1px solid var(--console-green);
    color: var(--console-green);
    padding: 5px 10px;
    cursor: pointer;
    font-family: 'Courier Prime', monospace;
}

.dos-content {
    padding: 0;
    background-color: transparent;
    color: var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: clamp(14px, 2.5vw, 16px);
    line-height: 1.6;
}

.dos-content p {
    margin: 10px 0;
    color: var(--console-green);
}

.dos-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-start;
    margin-top: 20px;
}

.dos-buttons .dos-button {
    flex: 0 0 auto;
    width: auto;
    min-width: 100px;
}

/* =============================================
   MOBILE OPTIMIZATIONS
   ============================================= */
@media (max-width: 768px) {
    body {
        font-size: 14px;
        padding: 15px;
    }
    
    .dos-terminal {
        width: 100%;
        max-width: 100%;
    }
    
    .dos-messages {
        max-height: 40vh;
        min-height: 200px;
    }
    
    .dos-button {
        font-size: 16px;
        min-height: 48px;
    }
    
    .dos-input-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .dos-message-input {
        width: 100%;
        min-width: 100%;
    }
    
    .dos-send-button {
        width: 100%;
    }
    
    .dos-button-row {
        flex-direction: row;
    }
}

@media (max-width: 480px) {
    .dos-button-container {
        gap: 12px;
    }
    
    .dos-button-close {
        width: 100%;
    }
}

/* =============================================
   SCROLLBAR - Minimal green
   ============================================= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--console-black);
}

::-webkit-scrollbar-thumb {
    background-color: var(--console-green);
    border: 1px solid var(--console-black);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--console-green);
}

/* =============================================
   UTILITY CLASSES
   ============================================= */
.hidden {
    display: none !important;
}

.blink {
    animation: blink 1s infinite;
}

/* Remove all decorative lines */
.title-line,
.screen-line,
.chat-line {
    display: none;
}

/* =============================================
   SECURITY SIMULATION LAYER
   ============================================= */
.security-layer {
    display: none;
    background-color: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--console-gray);
    border-radius: 4px;
    padding: 8px 12px;
    margin: 10px 0;
    font-size: clamp(11px, 2vw, 13px);
    color: var(--console-gray);
    font-family: 'Courier Prime', monospace;
    line-height: 1.5;
}

.security-line {
    display: flex;
    justify-content: space-between;
    margin: 3px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.security-label {
    color: var(--console-gray);
    margin-right: 8px;
    flex-shrink: 0;
}

.security-value {
    color: var(--console-green);
    font-weight: normal;
    text-align: right;
    flex-shrink: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Typing cursor effect */
.security-value.typing::after {
    content: '▌';
    animation: blink-cursor 1s infinite;
    color: var(--console-green);
    margin-left: 2px;
}

@keyframes blink-cursor {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .security-layer {
        font-size: 10px;
        padding: 6px 10px;
    }
    
    .security-line {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .security-value {
        text-align: left;
        margin-left: 10px;
    }
}

@media (max-width: 480px) {
    .security-layer {
        font-size: 9px;
        padding: 5px 8px;
        margin: 8px 0;
    }
}

/* =============================================
   ADVANCED FEATURES
   ============================================= */

/* SAS Display */
.sas-display {
    display: none;
    margin-left: 15px;
    padding: 4px 12px;
    background-color: rgba(0, 128, 0, 0.3);
    border: 1px solid var(--console-green);
    border-radius: 4px;
    font-size: 13px;
    color: var(--console-green);
    font-weight: bold;
    white-space: nowrap;
}

.sas-display.active {
    display: inline-block;
}

/* Remote Encryption Indicator */
.encryption-indicator {
    margin: 10px;
    padding: 12px 15px;
    background-color: rgba(0, 128, 0, 0.15);
    border: 2px solid var(--console-green);
    border-radius: 6px;
    font-family: 'Courier Prime', monospace;
    box-shadow: 0 0 15px rgba(0, 204, 0, 0.3);
}

.encryption-indicator.hidden {
    display: none;
}

.encryption-header {
    color: var(--console-green);
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 8px;
    text-shadow: 0 0 8px rgba(0, 204, 0, 0.6);
}

.encryption-matrix {
    font-size: 11px;
    line-height: 1.4;
    color: #00FF00;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* Advanced Features Bar */
.advanced-features-bar {
    display: flex;
    gap: 8px;
    padding: 8px 10px;
    border-top: 1px solid var(--console-gray);
    background-color: rgba(0, 0, 0, 0.3);
}

.feature-btn {
    flex: 1;
    padding: 8px 12px;
    background-color: var(--console-black);
    color: var(--console-green);
    border: 1px solid var(--console-green);
    font-family: 'Courier Prime', monospace;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.feature-btn:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

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

.feature-btn .btn-icon {
    font-size: 14px;
}

/* Recording button animation */
.record-btn.recording {
    background-color: #CC0000;
    border-color: #CC0000;
    color: white;
    animation: pulse 1s infinite;
}

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

/* File Progress Bar */
.file-progress {
    margin: 10px 0;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--console-gray);
    border-radius: 4px;
}

.progress-label {
    color: var(--console-green);
    font-size: 12px;
    margin-bottom: 5px;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    margin: 5px 0;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--console-green);
    width: 0%;
    transition: width 0.3s;
}

.progress-text {
    color: var(--console-gray);
    font-size: 11px;
    font-family: 'Courier Prime', monospace;
    margin-top: 3px;
}

/* File Download Message */
.file-message {
    background-color: rgba(0, 128, 0, 0.1);
    border: 1px solid var(--console-green);
}

.file-download {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 0;
}

.file-icon {
    font-size: 20px;
}

.file-name {
    flex: 1;
    color: var(--console-green);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-download-btn {
    padding: 5px 15px;
    background-color: var(--console-black);
    color: var(--console-green);
    border: 1px solid var(--console-green);
    text-decoration: none;
    font-size: 11px;
    font-family: 'Courier Prime', monospace;
    cursor: pointer;
    transition: all 0.2s;
}

.file-download-btn:hover {
    background-color: var(--console-green);
    color: var(--console-black);
}

/* Voice Message */
.voice-message {
    background-color: rgba(0, 128, 128, 0.1);
    border: 1px solid var(--console-green);
}

.voice-player {
    width: 100%;
    max-width: 300px;
    height: 32px;
    background-color: var(--console-black);
    border: 1px solid var(--console-green);
    border-radius: 4px;
}

.voice-player::-webkit-media-controls-panel {
    background-color: var(--console-black);
}

.voice-player::-webkit-media-controls-play-button,
.voice-player::-webkit-media-controls-timeline {
    filter: invert(1);
}

/* Countdown Timer */
.countdown-timer {
    display: inline-block;
    margin-left: 10px;
    padding: 2px 8px;
    background-color: rgba(128, 128, 128, 0.2);
    border: 1px solid var(--console-gray);
    border-radius: 3px;
    font-size: 11px;
    font-family: 'Courier Prime', monospace;
    color: var(--console-gray);
    transition: color 0.3s, border-color 0.3s;
}

.countdown-timer[style*="color: rgb(204, 0, 0)"] {
    border-color: #CC0000;
    animation: pulse-warning 0.5s infinite;
}

@keyframes pulse-warning {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Message destruction animation */
.message.destroying {
    animation: fade-out-destroy 0.5s forwards;
}

@keyframes fade-out-destroy {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.98); }
    100% { opacity: 0; transform: scale(0.95); }
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .advanced-features-bar {
        flex-direction: column;
    }
    
    .feature-btn {
        width: 100%;
    }
    
    .sas-display {
        display: block;
        margin: 5px 0 0 0;
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .feature-btn {
        font-size: 10px;
        padding: 6px 10px;
    }
    
    .file-name {
        font-size: 11px;
    }
    
    .file-download-btn {
        font-size: 10px;
        padding: 4px 10px;
    }
}