@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: 'JetBrains Mono', monospace;
    background: #000;
    color: #fff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    line-height: 1.4;
}

/* Boot Screen Styles */
.boot-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

.boot-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.boot-logo {
    font-size: 4rem;
    margin-bottom: 2rem;
    animation: logoGlow 2s ease-in-out infinite alternate;
    transform: scale(0);
    animation: logoAppear 1s ease-out forwards;
}

@keyframes logoAppear {
    from {
        transform: scale(0) rotate(180deg);
        opacity: 0;
    }
    to {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

@keyframes logoGlow {
    from {
        text-shadow: 0 0 20px rgba(88, 166, 255, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(88, 166, 255, 0.8), 0 0 40px rgba(88, 166, 255, 0.6);
    }
}

.boot-title {
    color: #58a6ff;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.5s forwards;
}

.boot-messages {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.boot-message {
    color: #7d8590;
    font-size: 0.9rem;
    opacity: 0;
    transform: translateX(-20px);
    white-space: nowrap;
}

.boot-message.success {
    color: #238636;
}

.boot-message.warning {
    color: #f85149;
}

.boot-message.info {
    color: #58a6ff;
}

.boot-message.show {
    animation: bootMessageSlide 0.6s ease-out forwards;
}

@keyframes bootMessageSlide {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.progress-container {
    width: 300px;
    height: 4px;
    background: #21262d;
    border-radius: 2px;
    margin: 2rem 0;
    overflow: hidden;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 2s forwards;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #58a6ff, #238636, #58a6ff);
    background-size: 200% 100%;
    width: 0%;
    border-radius: 2px;
    animation: progressFill 3s ease-out 2.5s forwards, progressShimmer 1.5s ease-in-out infinite 2.5s;
}

@keyframes progressFill {
    to {
        width: 100%;
    }
}

@keyframes progressShimmer {
    0%, 100% {
        background-position: 200% 0;
    }
    50% {
        background-position: -200% 0;
    }
}

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

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

/* Terminal Window Styles */
.terminal-window {
    width: 100%;
    max-width: 900px;
    background: #1a1a1a;
    border: 2px solid #333;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease-out;
}

.terminal-window.show {
    opacity: 1;
    transform: translateY(0);
}

.terminal-header {
    background: #2a2a2a;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #333;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.control-button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control-button.close { background: #ff5f56; }
.control-button.minimize { background: #ffbd2e; }
.control-button.maximize { background: #27ca3f; }

.window-title {
    flex: 1;
    text-align: center;
    font-size: 0.9rem;
    color: #888;
    font-weight: 400;
}

.terminal-content {
    padding: 30px;
    background: #0d1117;
    min-height: 600px;
    max-height: 600px;
    overflow-y: auto;
}

.app-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #333;
}

.app-title {
    color: #58a6ff;
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.version-info {
    color: #7d8590;
    margin-left: auto;
    font-size: 0.9rem;
}

/* Chat Area Styles */
.chat-area {
    border: 1px solid #30363d;
    border-radius: 6px;
    background: #161b22;
    min-height: 300px;
    padding: 15px;
    margin-bottom: 20px;
    max-height: 350px;
    overflow-y: auto;
}

.chat-message {
    margin-bottom: 15px;
    animation: messageSlideIn 0.3s ease;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.user-message {
    color: #58a6ff;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

.user-message::before {
    content: '> student:';
    color: #58a6ff;
    font-weight: 600;
    flex-shrink: 0;
}

.bot-message {
    color: #f0f6fc;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-left: 15px;
    padding: 8px 0;
}

.bot-message::before {
    content: '🎓 EduBot:';
    color: #238636;
    font-weight: 600;
    flex-shrink: 0;
}

/* Input Section Styles */
.input-section {
    margin-top: 20px;
}

.input-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.input-prompt {
    color: #58a6ff;
    font-weight: 600;
    flex-shrink: 0;
}

.message-input {
    background: transparent;
    border: none;
    color: #f0f6fc;
    font-family: inherit;
    font-size: 1rem;
    flex: 1;
    padding: 8px 0;
    outline: none;
    border-bottom: 1px solid #21262d;
    transition: border-color 0.3s ease;
}

.message-input:focus {
    border-bottom-color: #58a6ff;
}

.message-input::placeholder {
    color: #484f58;
}

.command-hints {
    font-size: 0.85rem;
    color: #7d8590;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.command-hint {
    display: flex;
    align-items: center;
    gap: 5px;
}

.command-key {
    background: #21262d;
    border: 1px solid #30363d;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.command-key:hover {
    border-color: #58a6ff;
    color: #58a6ff;
}


.quick-commands {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.quick-btn {
    background: transparent;
    border: 1px solid #30363d;
    color: #7d8590;
    padding: 6px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    border-radius: 3px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.quick-btn:hover {
    border-color: #58a6ff;
    color: #58a6ff;
}

.quick-btn.student-btn:hover {
    border-color: #f85149;
    color: #f85149;
}

.quick-btn.teacher-btn:hover {
    border-color: #a5a5a5;
    color: #a5a5a5;
}

/* Animation Styles */
.cursor {
    display: inline-block;
    background: #58a6ff;
    width: 2px;
    height: 1.2em;
    animation: cursorBlink 1s infinite;
    margin-left: 5px;
}

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

.typing-indicator {
    color: #7d8590;
    font-style: italic;
    animation: typingPulse 1.5s infinite;
}

@keyframes typingPulse {
    0%, 50% { opacity: 0.5; }
    25%, 75% { opacity: 1; }
}

.teacher-status {
    color: #238636;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #238636;
    border-radius: 50%;
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
        align-items: flex-start;
        padding-top: 20px;
    }

    .boot-logo {
        font-size: 3rem;
    }

    .boot-title {
        font-size: 1.4rem;
    }

    .progress-container {
        width: 250px;
    }
    
    .terminal-window {
        max-width: 100%;
        border-radius: 8px;
    }
    
    .terminal-content {
        padding: 15px;
        min-height: calc(100vh - 120px);
        max-height: calc(100vh - 120px);
    }
    
    .app-title {
        font-size: 1.1rem;
    }
    
    .chat-area {
        min-height: 250px;
        max-height: calc(100vh - 350px);
        font-size: 0.9rem;
        padding: 12px;
    }
    
    .quick-commands {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        margin-bottom: 15px;
    }
    
    .quick-btn {
        padding: 10px 8px;
        font-size: 0.75rem;
        text-align: center;
        white-space: nowrap;
    }
    
    .input-container {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    
    .input-prompt {
        font-size: 0.9rem;
    }
    
    .message-input {
        font-size: 0.9rem;
        padding: 10px;
        border: 1px solid #21262d;
        border-radius: 4px;
        background: #0d1117;
    }

    .message-input:focus {
        border-color: #58a6ff;
    }

    .cursor {
        display: none;
    }

    .command-hints {
        flex-direction: column;
        gap: 8px;
        font-size: 0.75rem;
    }
    
    .command-hint {
        justify-content: center;
    }

    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 20px;
        padding-bottom: 15px;
    }

    .version-info {
        margin-left: 0;
        align-self: flex-end;
        margin-top: -25px;
    }
    
    .bot-message, .user-message {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .terminal-header {
        padding: 10px 15px;
    }
    
    .window-title {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .boot-logo {
        font-size: 2.5rem;
    }

    .boot-title {
        font-size: 1.2rem;
    }

    .progress-container {
        width: 200px;
    }

    .quick-commands {
        grid-template-columns: 1fr;
    }
    
    .quick-btn {
        padding: 12px;
        font-size: 0.8rem;
    }
    
    .app-title {
        font-size: 1rem;
    }
    
    .terminal-content {
        padding: 12px;
    }
    
    .chat-area {
        padding: 10px;
        font-size: 0.85rem;
    }
    
    .message-input {
        font-size: 16px;
    }
}