/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #0a0a0a;
    --bg-terminal: #1a1a1a;
    --terminal-green: #00ff41;
    --terminal-cyan: #00f5ff;
    --terminal-yellow: #ffff00;
    --terminal-red: #ff0051;
    --terminal-purple: #bd00ff;
    --text-color: #e0e0e0;
    --border-color: #333;
    --accent-glow: rgba(0, 255, 65, 0.3);
}

body {
    font-family: 'Courier New', monospace;
    background: var(--bg-dark);
    color: var(--text-color);
    overflow-x: hidden;
    scroll-behavior: smooth;
    perspective: 1000px;
    min-height: 100vh;
}

body.scrolling-active {
    perspective: none;
}

/* Intro Screen */
.intro-screen {
    width: 100%;
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a0a0a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
}

.intro-screen.active {
    position: relative;
}

.intro-screen.hidden {
    display: none;
}

.glitch-container {
    text-align: center;
    padding: 2rem;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.secret-warning {
    max-width: 600px;
    margin: 0 auto;
    transform-style: preserve-3d;
}

.warning-icon {
    font-size: 4rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.glitch {
    font-size: 4rem;
    font-weight: bold;
    color: var(--terminal-red);
    position: relative;
    margin: 1rem 0;
    animation: glitch 1s infinite;
}

@keyframes glitch {
    0% { text-shadow: 2px 2px var(--terminal-cyan), -2px -2px var(--terminal-yellow); }
    25% { text-shadow: -2px 2px var(--terminal-purple), 2px -2px var(--terminal-green); }
    50% { text-shadow: 2px -2px var(--terminal-red), -2px 2px var(--terminal-cyan); }
    75% { text-shadow: -2px -2px var(--terminal-yellow), 2px 2px var(--terminal-purple); }
    100% { text-shadow: 2px 2px var(--terminal-cyan), -2px -2px var(--terminal-yellow); }
}

.warning-text {
    margin: 2rem 0;
}

.typing-text {
    font-size: 1.1rem;
    color: var(--terminal-cyan);
    margin: 0.8rem 0;
    opacity: 0;
    animation: fadeIn 0.5s forwards;
}

.typing-text.delay-1 { animation-delay: 0.5s; }
.typing-text.delay-2 { animation-delay: 1s; }
.typing-text.delay-3 { animation-delay: 1.5s; }

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

.warning-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2rem 0;
    opacity: 0;
    animation: fadeIn 0.5s 2s forwards;
}

.btn-warning, .btn-accept {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    border: 2px solid;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-warning:hover {
    background: var(--terminal-red);
    color: #000;
    box-shadow: 0 0 20px var(--terminal-red);
}

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

.btn-accept:hover {
    background: var(--terminal-green);
    color: #000;
    box-shadow: 0 0 20px var(--terminal-green);
}

.scroll-hint {
    margin-top: 3rem;
    opacity: 0;
    animation: fadeIn 0.5s 2.5s forwards;
}

.scroll-icon {
    font-size: 2rem;
    animation: bounce 2s infinite;
}

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

.scroll-hint p {
    color: var(--terminal-yellow);
    margin-top: 0.5rem;
}

/* Main Screen */
.main-screen {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-dark);
    transform-style: preserve-3d;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
}

.main-screen.scrolling-done {
    transform-style: flat;
    transform: none !important;
}

.main-screen.visible {
    opacity: 1;
}

/* Terminal Container */
.terminal-container {
    width: 100%;
    max-width: 1200px;
    background: var(--bg-terminal);
    border: 2px solid var(--terminal-green);
    border-radius: 8px;
    box-shadow: 0 0 30px var(--accent-glow);
    overflow: hidden;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.terminal-container.stable {
    transform-style: flat;
    transform: none !important;
}

.terminal-container:hover {
    transform: translateZ(10px);
    box-shadow: 0 0 50px var(--accent-glow);
}

.terminal-container.stable:hover {
    transform: none !important;
}

.terminal-header {
    background: #2a2a2a;
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.terminal-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.btn-close { background: #ff5f56; }
.btn-minimize { background: #ffbd2e; }
.btn-maximize { background: #27c93f; }

.terminal-title {
    color: var(--terminal-green);
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-icon {
    font-size: 1.2rem;
}

.terminal-body {
    padding: 2rem;
    min-height: 500px;
    max-height: 70vh;
    overflow-y: auto;
}

/* Custom Scrollbar */
.terminal-body::-webkit-scrollbar {
    width: 10px;
}

.terminal-body::-webkit-scrollbar-track {
    background: #0a0a0a;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: var(--terminal-green);
    border-radius: 5px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
    background: var(--terminal-cyan);
}

/* Welcome Section */
.terminal-welcome {
    margin-bottom: 2rem;
}

.ascii-art {
    color: var(--terminal-cyan);
    font-size: 0.75rem;
    line-height: 1.2;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.info-text {
    margin-top: 1rem;
    animation: fadeIn 0.5s 0.3s backwards;
}

.info-text p {
    margin: 0.5rem 0;
    color: var(--text-color);
}

.prompt {
    color: var(--terminal-green);
    margin-right: 0.5rem;
}

.success {
    color: var(--terminal-green);
    margin-right: 0.5rem;
}

.info {
    color: var(--terminal-cyan);
    margin-right: 0.5rem;
}

/* Mode Selection */
.section-title {
    color: var(--terminal-yellow);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mode-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.mode-btn {
    background: rgba(0, 255, 65, 0.05);
    border: 2px solid var(--terminal-green);
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-family: 'Courier New', monospace;
}

.mode-btn:hover {
    background: rgba(0, 255, 65, 0.1);
    transform: translateY(-5px);
    box-shadow: 0 5px 20px var(--accent-glow);
}

.mode-icon {
    font-size: 3rem;
}

.mode-text h3 {
    color: var(--terminal-green);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.mode-text p {
    color: var(--text-color);
    font-size: 0.9rem;
}

.encode-btn { border-color: var(--terminal-green); }
.decode-btn { border-color: var(--terminal-cyan); }

.encode-btn:hover { box-shadow: 0 5px 20px rgba(0, 255, 65, 0.4); }
.decode-btn:hover { box-shadow: 0 5px 20px rgba(0, 245, 255, 0.4); }

/* Sections */
.section {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.hidden {
    display: none !important;
}

.back-btn {
    background: transparent;
    border: 1px solid var(--terminal-red);
    color: var(--terminal-red);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.back-btn:hover {
    background: var(--terminal-red);
    color: #000;
}

/* Input Groups */
.input-group {
    margin: 1.5rem 0;
}

.terminal-label {
    display: block;
    color: var(--terminal-cyan);
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.terminal-input {
    width: 100%;
    background: #0a0a0a;
    border: 2px solid var(--terminal-green);
    color: var(--terminal-green);
    padding: 1rem;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    resize: vertical;
    transition: all 0.3s;
}

.terminal-input:focus {
    outline: none;
    border-color: var(--terminal-cyan);
    box-shadow: 0 0 10px rgba(0, 245, 255, 0.3);
}

.terminal-input::placeholder {
    color: #666;
}

/* Emoji Selection */
.emoji-selection {
    margin: 2rem 0;
}

.subsection-title {
    color: var(--terminal-purple);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.8rem 1.5rem;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    transition: all 0.3s;
    font-size: 1rem;
}

.tab-btn.active {
    border-color: var(--terminal-yellow);
    color: var(--terminal-yellow);
    background: rgba(255, 255, 0, 0.1);
}

.tab-btn:hover {
    border-color: var(--terminal-yellow);
}

/* Emoji Grid */
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 0.8rem;
    max-height: 300px;
    overflow-y: auto;
    padding: 1rem;
    background: #0a0a0a;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.emoji-btn {
    background: transparent;
    border: 2px solid transparent;
    font-size: 2rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 4px;
}

.emoji-btn:hover {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--terminal-green);
    transform: scale(1.2);
}

.emoji-btn.selected {
    background: rgba(0, 255, 65, 0.2);
    border-color: var(--terminal-green);
    box-shadow: 0 0 15px var(--accent-glow);
}

.letter-btn {
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--terminal-green);
}

/* Execute Button */
.execute-btn {
    background: transparent;
    border: 2px solid var(--terminal-yellow);
    color: var(--terminal-yellow);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin: 2rem 0;
}

.execute-btn:hover {
    background: var(--terminal-yellow);
    color: #000;
    box-shadow: 0 0 20px rgba(255, 255, 0, 0.5);
    transform: scale(1.05);
}

.btn-icon {
    font-size: 1.2rem;
}

/* Processing Section */
.processing-section {
    text-align: center;
    padding: 3rem 0;
}

.processing-content {
    max-width: 500px;
    margin: 0 auto;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(0, 255, 65, 0.2);
    border-top-color: var(--terminal-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.processing-text {
    color: var(--terminal-cyan);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

.progress-bar {
    width: 100%;
    height: 30px;
    background: #0a0a0a;
    border: 2px solid var(--terminal-green);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--terminal-green), var(--terminal-cyan));
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Result Section */
.result-box {
    background: #0a0a0a;
    border: 2px solid var(--terminal-green);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 4px;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    color: var(--terminal-yellow);
    font-size: 1.1rem;
}

.result-content {
    background: #000;
    padding: 1.5rem;
    color: var(--terminal-green);
    font-size: 1.2rem;
    word-wrap: break-word;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 1rem;
    min-height: 60px;
    cursor: pointer;
    user-select: text;
    transition: background 0.3s;
}

.result-content:hover {
    background: rgba(0, 0, 0, 0.8);
}

.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.copy-btn, .select-btn {
    background: transparent;
    border: 2px solid var(--terminal-cyan);
    color: var(--terminal-cyan);
    padding: 0.8rem 1.5rem;
    font-family: 'Courier New', monospace;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

.copy-btn:hover, .select-btn:hover {
    background: var(--terminal-cyan);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.5);
}

.select-btn {
    border-color: var(--terminal-purple);
    color: var(--terminal-purple);
}

.select-btn:hover {
    background: var(--terminal-purple);
    box-shadow: 0 0 15px rgba(189, 0, 255, 0.5);
}

.stats-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    color: var(--text-color);
}

.stat-value {
    color: var(--terminal-green);
    font-weight: bold;
}

/* Terminal Footer */
.terminal-footer {
    background: #2a2a2a;
    padding: 0.8rem 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-color);
}

.footer-credit {
    display: flex;
    justify-content: center;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0, 255, 65, 0.2);
}

.glitch-text {
    color: var(--terminal-cyan);
    font-size: 0.9rem;
    position: relative;
    animation: glitchText 3s infinite;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5);
}

@keyframes glitchText {
    0%, 90%, 100% {
        text-shadow: 
            0 0 10px rgba(0, 245, 255, 0.5),
            2px 0 var(--terminal-purple),
            -2px 0 var(--terminal-green);
    }
    92% {
        text-shadow: 
            0 0 10px rgba(0, 245, 255, 0.5),
            -2px 0 var(--terminal-purple),
            2px 0 var(--terminal-green);
    }
    94% {
        text-shadow: 
            0 0 10px rgba(0, 245, 255, 0.5),
            2px 2px var(--terminal-red),
            -2px -2px var(--terminal-yellow);
    }
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(0, 255, 65, 0.2);
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 2px solid;
    color: var(--terminal-green);
    text-decoration: none;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.github-btn {
    border-color: var(--terminal-purple);
    color: var(--terminal-purple);
}

.github-btn:hover {
    background: var(--terminal-purple);
    color: #000;
    box-shadow: 0 0 20px rgba(189, 0, 255, 0.5);
    transform: translateY(-2px);
}

.linkedin-btn {
    border-color: var(--terminal-cyan);
    color: var(--terminal-cyan);
}

.linkedin-btn:hover {
    background: var(--terminal-cyan);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.5);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 20px;
    height: 20px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--terminal-green);
    border-radius: 50%;
    animation: blink 2s infinite;
}

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

.separator {
    color: var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .terminal-container {
        border-radius: 0;
    }
    
    .mode-buttons {
        grid-template-columns: 1fr;
    }
    
    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    }
    
    .warning-buttons {
        flex-direction: column;
    }
    
    .glitch {
        font-size: 2.5rem;
    }
    
    .ascii-art {
        font-size: 0.5rem;
    }
    
    .error-modal-content {
        width: 95%;
        margin: 1rem;
    }
    
    .error-title {
        font-size: 1rem;
    }
    
    .error-icon {
        font-size: 2rem;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .copy-btn, .select-btn {
        width: 100%;
    }
}

/* Animations */
@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--terminal-green);
    white-space: nowrap;
    animation: typewriter 2s steps(40) 1s both, blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--terminal-green); }
}

/* Error Modal */
.error-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.error-modal.show {
    opacity: 1;
    pointer-events: all;
}

.error-modal-content {
    background: var(--bg-terminal);
    border: 3px solid var(--terminal-red);
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 0 50px rgba(255, 0, 81, 0.5);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.error-modal-header {
    background: rgba(255, 0, 81, 0.1);
    padding: 1.5rem;
    border-bottom: 2px solid var(--terminal-red);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.error-icon {
    font-size: 2.5rem;
    animation: pulse 2s infinite;
}

.error-title {
    color: var(--terminal-red);
    font-size: 1.3rem;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.error-modal-body {
    padding: 2rem;
}

.error-message {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

.error-modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
}

.error-close-btn {
    background: transparent;
    border: 2px solid var(--terminal-red);
    color: var(--terminal-red);
    padding: 1rem 2rem;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: bold;
}

.error-close-btn:hover {
    background: var(--terminal-red);
    color: #000;
    box-shadow: 0 0 20px rgba(255, 0, 81, 0.7);
    transform: scale(1.05);
}