body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.navbar {
    border-bottom: 1px solid #eee;
}

.nav-link {
    color: #555;
}

.nav-link:hover {
    color: #000;
}

.section-title {
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.course-group {
    margin-bottom: 2rem;
}

.course-list {
    list-style-type: none;
    padding-left: 0;
}

.course-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #555;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: #f8f9fa;
    border: 1px solid #eee;
}

.social-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    color: #000;
}

.social-link.linkedin:hover {
    background: #0a66c2;
    color: white;
}

.social-link.twitter:hover {
    background: #000;
    color: white;
}

.social-link i {
    font-size: 1.5rem;
    margin-right: 0.75rem;
}

.website-link {
    text-decoration: none;
    color: #555;
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.website-link:hover {
    color: #000;
    background-color: #f8f9fa;
}

.last-update {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

.workshop-item, .slides-item {
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.workshop-item:hover, .slides-item:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.workshop-date, .slides-date {
    font-size: 0.9rem;
    color: #666;
}


.course-schedule {
    background-color: #f8f9fa;
    border-left: 4px solid #0d6efd;
    padding: 8px 16px;
    margin: 10px 0;
    font-size: 0.9rem;
    color: #495057;
    border-radius: 0 4px 4px 0;
    display: inline-block;
}

.course-schedule::before {
    content: "📅 ";
    margin-right: 4px;
}

/* Hover effect */
.course-schedule:hover {
    background-color: #e9ecef;
    transition: background-color 0.2s ease;
}

.course-list {
    list-style-type: none;
    padding-left: 0;
    margin-top: 15px;
}

.course-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    line-height: 1.5;
}

.course-list li::before {
    content: "•";
    color: #0d6efd;
    font-size: 1.2em;
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
}

/* Hover effect for list items */
.course-list li:hover {
    color: #0d6efd;
    transition: color 0.2s ease;
}


.knight-rider-container {
    background: #000;
    padding: 10px 0;
    margin: 0;
    overflow: hidden;
}

.knight-rider-lights {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 5px 0;
}

.knight-rider-led {
    width: 20px;
    height: 8px;
    background: #300;
    border-radius: 4px;
    animation: knight-rider 1.5s ease-in-out infinite;
}

@keyframes knight-rider {
    0% {
        background: #300;
        box-shadow: 0 0 5px #600;
    }
    50% {
        background: #f00;
        box-shadow: 0 0 20px #f00;
    }
    100% {
        background: #300;
        box-shadow: 0 0 5px #600;
    }
}

/* Add delay for each LED to create scanning effect */
.knight-rider-led:nth-child(1) { animation-delay: -1.35s; }
.knight-rider-led:nth-child(2) { animation-delay: -1.2s; }
.knight-rider-led:nth-child(3) { animation-delay: -1.05s; }
.knight-rider-led:nth-child(4) { animation-delay: -0.9s; }
.knight-rider-led:nth-child(5) { animation-delay: -0.75s; }
.knight-rider-led:nth-child(6) { animation-delay: -0.6s; }
.knight-rider-led:nth-child(7) { animation-delay: -0.45s; }
.knight-rider-led:nth-child(8) { animation-delay: -0.3s; }
.knight-rider-led:nth-child(9) { animation-delay: -0.15s; }
.knight-rider-led:nth-child(10) { animation-delay: 0s; }



.comet-container {
    position: relative;
    height: 15px;
    background: #000;
    overflow: hidden;
    margin: 0;
}

.comet {
    position: absolute;
    width: 12px;
    height: 6px;
    background: #ff3333;
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    animation: moveComet 25s linear infinite;
}

.comet::before {
    content: '';
    position: absolute;
    top: 50%;
    right: 12px;
    width: 150px;
    /* Use clip-path to create a triangular tail */
    clip-path: polygon(0 0, 100% 20%, 0 50%);
    height: 2px; /* Increased height for thicker base */
    background: linear-gradient(to left, 
        transparent,
        rgba(255, 51, 51, 0.1) 80%,
        rgba(255, 51, 51, 0.3) 60%,
        rgba(255, 51, 51, 0.5) 40%,
        rgba(255, 51, 51, 0.8) 20%,
        #ff3333 0%
    );
    transform: translateY(-50%);
}

.comet::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    box-shadow: 
        0 0 12px 2px #ff3333,
        0 0 12px 4px rgba(255, 51, 51, 0.5);
}

@keyframes moveComet {
    0% {
        left: -162px;
        transform: translateY(-50%) scaleX(1);
    }
    45% {
        transform: translateY(-50%) scaleX(1);
    }
    50% {
        left: calc(100% + 162px);
        transform: translateY(-50%) scaleX(-1);
    }
    95% {
        transform: translateY(-50%) scaleX(-1);
    }
    100% {
        left: -162px;
        transform: translateY(-50%) scaleX(1);
    }
}

/*

        //Chatbot Styles 
        .chatbot-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1000;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }

        .chatbot-toggle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .chatbot-toggle:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 25px rgba(0,0,0,0.2);
        }

        .chatbot-window {
            position: absolute;
            bottom: 80px;
            right: 0;
            width: 350px;
            height: 500px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            display: none;
            flex-direction: column;
            overflow: hidden;
        }

        .chatbot-window.open {
            display: flex;
            animation: slideUp 0.3s ease;
        }

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

        .chatbot-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 15px 20px;
            display: flex;
            justify-content: between;
            align-items: center;
        }

        .chatbot-title {
            font-weight: 600;
            margin: 0;
            flex: 1;
        }

        .chatbot-close {
            background: none;
            border: none;
            color: white;
            font-size: 20px;
            cursor: pointer;
            padding: 0;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background-color 0.2s;
        }

        .chatbot-close:hover {
            background-color: rgba(255,255,255,0.2);
        }

        .auth-form, .chat-interface {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .auth-form {
            padding: 30px 20px;
            justify-content: center;
        }

        .auth-form h3 {
            margin-bottom: 20px;
            color: #333;
            text-align: center;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
            color: #555;
        }

        .form-group input {
            width: 100%;
            padding: 10px;
            border: 2px solid #e1e5e9;
            border-radius: 8px;
            font-size: 14px;
            transition: border-color 0.2s;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
        }

        .auth-button {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: transform 0.2s;
        }

        .auth-button:hover:not(:disabled) {
            transform: translateY(-1px);
        }

        .auth-button:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .error-message {
            color: #e74c3c;
            font-size: 12px;
            margin-top: 10px;
            text-align: center;
        }

        .chat-messages {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            max-height: 350px;
        }

        .message {
            margin-bottom: 15px;
            display: flex;
            flex-direction: column;
        }

        .message.user {
            align-items: flex-end;
        }

        .message.bot {
            align-items: flex-start;
        }

        .message-bubble {
            max-width: 80%;
            padding: 10px 15px;
            border-radius: 18px;
            font-size: 14px;
            line-height: 1.4;
        }

        .message.user .message-bubble {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .message.bot .message-bubble {
            background: #f1f3f5;
            color: #333;
        }

        .message-time {
            font-size: 11px;
            color: #888;
            margin-top: 5px;
        }

        .chat-input-container {
            padding: 15px 20px;
            border-top: 1px solid #e1e5e9;
            display: flex;
            gap: 10px;
        }

        .chat-input {
            flex: 1;
            padding: 10px 15px;
            border: 2px solid #e1e5e9;
            border-radius: 20px;
            font-size: 14px;
            resize: none;
            max-height: 80px;
        }

        .chat-input:focus {
            outline: none;
            border-color: #667eea;
        }

        .send-button {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border: none;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s;
        }

        .send-button:hover:not(:disabled) {
            transform: scale(1.1);
        }

        .send-button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .typing-indicator {
            display: flex;
            align-items: center;
            gap: 5px;
            padding: 10px 15px;
            background: #f1f3f5;
            border-radius: 18px;
            max-width: 80px;
        }

        .typing-dot {
            width: 6px;
            height: 6px;
            background: #999;
            border-radius: 50%;
            animation: typing 1.4s infinite;
        }

        .typing-dot:nth-child(2) {
            animation-delay: 0.2s;
        }

        .typing-dot:nth-child(3) {
            animation-delay: 0.4s;
        }

        @keyframes typing {
            0%, 60%, 100% {
                transform: translateY(0);
            }
            30% {
                transform: translateY(-10px);
            }
        }

        @media (max-width: 768px) {
            .chatbot-window {
                width: 300px;
                height: 450px;
            }
        } */


              /* Chatbot Styles - Simple & Elegant */
        .chatbot-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1000;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }

        .chatbot-toggle {
            width: 55px;
            height: 55px;
            background: #2c3e50;
            border: 2px solid #34495e;
            color: white;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .chatbot-toggle:hover {
            background: #34495e;
            border-color: #2c3e50;
        }

        .chatbot-window {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 380px;
            height: 520px;
            background: white;
            border: 2px solid #bdc3c7;
            display: none;
            flex-direction: column;
            overflow: hidden;
        }

        .chatbot-window.open {
            display: flex;
            animation: slideUp 0.2s ease;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .chatbot-header {
            background: #ecf0f1;
            border-bottom: 1px solid #bdc3c7;
            color: #2c3e50;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .chatbot-title {
            font-weight: 600;
            margin: 0;
            font-size: 16px;
        }

        .chatbot-close {
            background: none;
            border: 1px solid #95a5a6;
            color: #2c3e50;
            font-size: 16px;
            cursor: pointer;
            padding: 4px 8px;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

        .chatbot-close:hover {
            background: #95a5a6;
            color: white;
        }

        .auth-form, .chat-interface {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .auth-form {
            padding: 30px 25px;
            justify-content: center;
        }

        .auth-form h3 {
            margin-bottom: 25px;
            color: #2c3e50;
            text-align: center;
            font-weight: 600;
            font-size: 18px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            color: #2c3e50;
            font-size: 14px;
        }

        .form-group input {
            width: 100%;
            padding: 12px;
            border: 1px solid #bdc3c7;
            font-size: 14px;
            transition: border-color 0.2s;
            box-sizing: border-box;
        }

        .form-group input:focus {
            outline: none;
            border-color: #2c3e50;
        }

        .auth-button {
            width: 100%;
            padding: 14px;
            background: #2c3e50;
            color: white;
            border: none;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.2s;
        }

        .auth-button:hover:not(:disabled) {
            background: #34495e;
        }

        .auth-button:disabled {
            background: #95a5a6;
            cursor: not-allowed;
        }

        .error-message {
            color: #e74c3c;
            font-size: 13px;
            margin-top: 12px;
            text-align: center;
        }

        .chat-messages {
            flex: 1;
            padding: 20px;
            overflow-y: auto;
            max-height: 360px;
            background: #fafafa;
        }

        .message {
            margin-bottom: 16px;
            display: flex;
            flex-direction: column;
        }

        .message.user {
            align-items: flex-end;
        }

        .message.bot {
            align-items: flex-start;
        }

        .message-bubble {
            max-width: 75%;
            padding: 12px 16px;
            font-size: 14px;
            line-height: 1.4;
            border: 1px solid #bdc3c7;
        }

        .message.user .message-bubble {
            background: #2c3e50;
            color: white;
            border-color: #2c3e50;
        }

        .message.bot .message-bubble {
            background: white;
            color: #2c3e50;
        }

        .message-time {
            font-size: 11px;
            color: #7f8c8d;
            margin-top: 6px;
        }

        .chat-input-container {
            padding: 18px 20px;
            border-top: 1px solid #bdc3c7;
            background: white;
            display: flex;
            gap: 12px;
        }

        .chat-input {
            flex: 1;
            padding: 12px 14px;
            border: 1px solid #bdc3c7;
            font-size: 14px;
            resize: none;
            max-height: 80px;
            min-height: 38px;
        }

        .chat-input:focus {
            outline: none;
            border-color: #2c3e50;
        }

        .send-button {
            width: 42px;
            height: 42px;
            background: #2c3e50;
            border: 1px solid #2c3e50;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s;
        }

        .send-button:hover:not(:disabled) {
            background: #34495e;
        }

        .send-button:disabled {
            background: #95a5a6;
            border-color: #95a5a6;
            cursor: not-allowed;
        }

        .typing-indicator {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 12px 16px;
            background: white;
            border: 1px solid #bdc3c7;
            max-width: 80px;
        }

        .typing-dot {
            width: 5px;
            height: 5px;
            background: #95a5a6;
            animation: typing 1.4s infinite;
        }

        .typing-dot:nth-child(2) {
            animation-delay: 0.2s;
        }

        .typing-dot:nth-child(3) {
            animation-delay: 0.4s;
        }

        @keyframes typing {
            0%, 60%, 100% {
                transform: translateY(0);
                opacity: 0.4;
            }
            30% {
                transform: translateY(-6px);
                opacity: 1;
            }
        }

        @media (max-width: 768px) {
            .chatbot-window {
                width: 300px;
                height: 450px;
            }
        }