:root {
    --bg: #ffffff;
    --text: #333333;
    --accent: #007acc;
  }
  
body.dark-mode {
     --bg: #121212; 
     --text: #eeeeee; 
     --accent: #66ccff; } 
body { 
    margin: 0; font-family: Arial, sans-serif; 
    background: var(--bg); color: var(--text); 
    transition: background 0.3s, color 0.3s; 
} 


.mentor-header{
    background-color: orange;
    padding:25px ;
}
body.dark-mode footer { 
    background: #1e1e1e; /* or any dark shade you like */ 
    color: #eee; 

} 
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
  }
  
  
    nav ul { 
            display: flex;
            justify-content: center; /* centers items horizontally */
            align-items: center;
            list-style: none;
            padding: 0;
            margin: 0;
            gap: 2rem; /* spacing handled below too */
            list-style: none; 
            gap: 4rem; /* increases spacing between <li>s */
    } 

       /* Hide hamburger on large screens */
       @media (min-width: 769px) {
        .hamburger {
          display: none;
        flex-direction: column; 
        font-size: 2rem;
        cursor: pointer; 
    } 
} 

        nav a { color: white; 
            text-decoration: none; 
            font-weight: bold; 
        } 
           
        .hamburger div { 
                    width: 25px; 
                    height: 3px; 
                    background: white; 
                    margin: 4px 0; 
                } 
                    .menu { 
                        display: flex; 
                    } 
                    .top-controls { 
                        display: flex; 
                        align-items: center; 
                    } 
                        .toggle-switch { 
                            margin-left: 1rem; 
                            cursor: pointer; 
                            font-size: 1.2rem; 
                        }
                    
                    
                    nav ul li {
                     margin: 0 1.5rem;
                    }
                    nav ul li {
                        margin: 0; /* reset margin if needed */
                      }
                      nav {
                        flex: 1;
                        display: flex;
                        justify-content: center;
                      }
                    
                      .top-controls {
                        margin-left: auto;
                      }
                      .site-nav {
                        position: relative;
                      }
                      
                      .nav-links {
                        display: flex;
                        gap: 1.5rem;
                        list-style: none;
                        padding: 0;
                        margin: 0;
                        transition: all 0.3s ease;
                      }
                      
                      .nav-links li a {
                        color: white;
                        text-decoration: none;
                        font-weight: bold;
                      }
                      
                      .hamburger {
                        display: none;
                        font-size: 2rem;
                        cursor: pointer;
                      }
                      
                      .toggle-switch {
                        margin-left: 1rem;
                        cursor: pointer;
                        font-size: 1.2rem;
                      }

 /* --- Responsive Styles (for screens <= 768px) --- */
@media (max-width: 768px) {
    header {
        justify-content: space-between; /* Distribute items in header */
        padding: 10px 20px; /* Adjust header padding for smaller screens */
    }

    .site-nav {
        flex-grow: 0; /* Don't force nav to take full width */
    }

    .nav-links {
        display: none; /* Hidden by default on small screens */
        flex-direction: column;
        position: absolute;
        top: 70px; /* Adjust based on your header's actual height */
        right: 20px; /* Align to the right, outside the viewport initially */
        width: 180px; /* Width of the dropdown menu */
        padding: 1rem;
        border-radius: 8px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        z-index: 1000;
        transform: translateX(100%); /* Start off-screen to the right */
        transition: transform 0.3s ease-in-out, background-color 0.3s ease-in-out;
    }

    /* --- Active State for Dropdown Menu --- */
    .nav-links.active {
        display: flex; /* Show the menu */
        transform: translateX(0); /* Slide into view */
        background-color: var(--card-bg-color, #ffffff); /* Distinct background for the dropdown */
        border: 1px solid var(--border-color, #eee); /* Optional: Add a subtle border */
    }

    .nav-links li {
        margin: 10px 0; /* Vertical spacing for menu items */
        text-align: right; /* Align links within the dropdown */
    }

    .nav-links li a {
        padding: 8px 12px;
        display: block; /* Make the entire padded area clickable */
        border-radius: 5px; /* Slightly rounded corners for links */
        transition: background-color 0.2s ease;
    }

    .nav-links li a:hover {
        background-color: var(--hover-color, #f0f0f0); /* Light hover background */
    }

    /* --- Hamburger Icon Visible on Small Screens --- */
    .hamburger {
        display: block; /* Show the hamburger icon */
    }

    /* Optional: Hamburger icon animation (e.g., transform to 'X') */
    .hamburger.open {
        /* You'd typically use pseudo-elements and rotations here */
        /* For a simple &#9776;, you might just change color or add animation */
        color: var(--accent-color, #007bff);
    }
}




    nav a {
        font-size: 0.9em;
    }
       

nav ul {
    justify-content: center;
    gap: 2.5rem; /* adjust for preferred spacing */
    display: flex;
    justify-content: center;
}

  .menu {
    flex-direction: column;
    position: absolute;
    right: 2rem;
    top: 60px;
  }

.projects-grid {
margin-bottom: 4em; 
align-items: stretch; 
grid-template-columns: repeat(2, 1fr); 
gap: 2em; 
padding: 2em 1em; 
max-width: 1200px; 
margin: 2em auto 4em auto;
}

.tesai-image, .tesai-qa { 
    flex: 1 1 100%; max-width: 100%; 
}

.tesai-image { 
    text-align: center; 
    margin-bottom: 1em; }

.tesai-image img { 
    max-width: 250px;

}
.tesai-qa textarea { 
    min-height: 120px; 

} 
    .tesai-showcase { 
        display: block; 
        margin-top: 1.5em; 
        padding-top: 1em; }


        .menu-title {
            text-align: center;
            width: 100%;
            margin: 0 auto;
          }
               




/* Main content & animation */ 
main { 
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem; 
} 
    .fade-in { 
        opacity: 0; 
        transform: translateY(20px); 
        animation: fadeInUp 1s forwards; 
    } 
        .fade-in:nth-child(2) { 
            animation-delay: 0.2s; 
        } 
            .fade-in:nth-child(3) { 
                animation-delay: 0.4s; 
            } 
                .fade-in:nth-child(4) { 
                    animation-delay: 0.6s; 
                } 
                    .fade-in:nth-child(5) { 
                        animation-delay: 0.8s; 
                    }
                      
@keyframes fadeInUp { 
    to { opacity: 1; 
        transform: translateY(0); 
    } }

    @keyframes typeIn {
        from { opacity: 0; transform: translateY(10px); }
        to { opacity: 1; transform: translateY(0); }
      }
      #agentResponse {
        animation: typeIn 0.4s ease-in-out;
      }
      

.menu { 
    position: absolute; 
    z-index: 1000; } 
    header { 
        position: relative; 
        z-index: 1100; }


/* 🔹 About Page Sections */ 
.about-section { 
    background-color: rgba(173, 163, 163, 0.9); 
    padding: 0; margin: 0 ; 
    border-radius: 8px; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.05); } 
    body.dark-mode .about-section { 
        background-color: #1e1e1e; 
        color: var(--text); }


/* 🔹 Certifications Grid */ 
.certifications-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); gap: 1.5em; 
    max-width: 1000px; 
    margin: 1em auto 3em auto; 
    padding: 0 1em; 
    background-color: #f9f9f9;
}


    .certifications-grid {
      width: auto;
      height: auto;
      
      padding-bottom: 20px;
      padding-top: 30px;
    }
@media screen and (max-width: 900px) { 
    .certifications-grid { 
        grid-template-columns: repeat(2, 1fr); 
    } } 
@media screen and (max-width: 600px) { 
    .certifications-grid { 
        grid-template-columns: 1fr; 
    } 
}
.cert-card { 
    background: #fff; 
    padding: 1em; 
    text-align: center; 
    border-radius: 10px; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.1); 
    transition: transform 0.3s ease; } 
    .cert-card:hover { 
        transform: translateY(-5px); 
        background-color: #f0f8ff; } .cert-card img { 
            width: 80px; height: auto; 
            margin-bottom: 1em; 
        } 
            .cert-card p {  
                font-size: 1.2em;
                font-weight: 700;
                margin-bottom: 0.4em;

            } 
                .cert-card a { 
                    display: block; 
                    margin-top: 0.5em; 
                    font-size: 0.9em; } 
                    body.dark-mode .cert-card { 
                        background-color: #1e1e1e; 
                        color: var(--text); } 
                        body.dark-mode .cert-card:hover { 
                            background-color: #2a2a2a; 
                        }
                        .card-title {
                            font-size: 1.2em;
                            font-weight: 700;
                            margin-bottom: 0.4em;
                          }
                          
                          .card-desc {
                            font-size: 0.95em;
                            line-height: 1.4;
                          }

                        .it-card:hover {
                            background-color: #4d5c61;
                            color: white;
                        }
                        .ai-card:hover{
                            background-color:  #5A4FC1;
                            color: white;
                        }
                        .data-card:hover{
                            background-color: #505A8D;
                            color: white;
                        }
                        .web-card:hover{
                            background-color: #2C9A;
                            color: white;
                        }


/* 🔹 Footer */ 
footer { 
    box-shadow: 0 -1px 5px rgba(212, 201, 201, 0.1); 
    background-color: rgb(218, 218, 223); 
    color: white; 
    text-align: center; 
    padding: 1em 0; 
    position: fixed; 
    width: 100%; 
    bottom: 0; 
    border-top: 1px solid black; 
} 
    body.dark-mode footer { 
        background-color: rgb(88, 88, 147); 
        color: #ccc; } 


/* About Me*/ 
.about-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 2em; 
    padding: 2em 1em; 
    max-width: 1200px; 
    margin: auto; }
.about-card { 
    background: #f8f8f8; 
    color: #333; 
    padding: 2em 1.5em; 
    border-radius: 10px; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.05); 
    transition: transform 0.3s ease, 
    box-shadow 0.3s ease; 
    border: 2px solid transparent; 
    transition: border 0.3s ease, 
    transform 0.3s ease;
}

.about-card:hover { 
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1); 
    border-color: var(--accent); /* like #00ccff */ 
    transform: translateY(-4px);
} 
body.dark-mode .about-card:hover { 
    box-shadow: 0 12px 24px rgba(0, 255, 255, 0.2); }
.about-card p { 
    max-width: 60ch; 
    line-height: 1.6; }
h3, h4 { 
    color: #222; } 
    a { color: var(--accent); } 
    .about-card:hover { 
        transform: translateY(-5px); 
    }
body.dark-mode .about-card { 
    background-color: #1e1e1e; 
    color: var(--text); 
}
@media screen and (max-width: 900px) { 
    .about-grid { grid-template-columns: repeat(2, 1fr); } 
}
@media screen and (max-width: 600px) { 
    .about-grid { grid-template-columns: 1fr; } 
} 

/* Projects */ 
.projects-grid { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); /* Two columns */ 
    gap: 2em; padding: 2em 1em; max-width: 1200px; 
    margin: auto; 
}
.project-card { 
    background-color: rgba(255, 255, 255, 0.9); 
    padding: 1.5em; border-radius: 10px; 
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05); 
    transition: transform 0.3s ease;
    display: flex; flex-direction: column; 
    justify-content: space-between; 
    height: 100%;
}
.project-card:hover { 
    transform: translateY(-4px); 
    transition: transform 0.3s ease, 
    box-shadow 0.3s ease;
}

body.dark-mode .project-card { 
    background-color: #1e1e1e; 
    color: var(--text); } body.dark-mode .project-card:hover { 
        box-shadow: 0 12px 24px rgba(0, 255, 255, 0.1); }
.tags { 
    margin: 1em 0; } .tags span { 
        background-color: #e6f0ff; 
        color: #003366; 
        padding: 0.3em 0.6em; 
        margin: 0.2em; 
        border-radius: 5px; 
        font-size: 0.85em; } 
        body.dark-mode .tags span { 
            background-color: #003366; 
            color: #fff; } /* AI Agent*/ 
            .agent-box { 
                background: #fff; 
                padding: 1.5em; margin: 2em 0; 
                border-radius: 10px; 
                box-shadow: 0 4px 12px rgba(0,0,0,0.1); 
            } 
            body.dark-mode .agent-box { 
                background: #1e1e1e; 
                color: #f1f1f1; 
            }
.agent-box textarea { 
    width: 100%; 
    height: 500px; 
    padding: 1em; font-size: 1rem; 
    border: 1px solid #ccc; 
    border-radius: 8px; 
    resize: vertical; 
    margin: 1em 0; 
    background-color: #fefefe; 
    color: #333; 
    font-family: inherit; }
body.dark-mode .agent-box textarea { 
    background-color: #1e1e1e; 
    color: #f1f1f1; border: 1px solid #444; }
.tesai-showcase { 
    background-color:linear-gradient(to bottom right, #007acc, #005fa3);
    display: flex; 
    align-items: flex-start; 
    justify-content: center; 
    gap: 3em; 
    flex-wrap: wrap; /* ensures it stacks on mobile */ 
    width: auto; 
    height: auto; 
    margin: 2em; 
    padding: 2em 3em; 
    margin-bottom: 10em; 
    margin-top: 0px ; 
    background-image: url('assets/some-bg.png'); 
    background-repeat: no-repeat; 
    background-position: right; 
    background-size: cover; 
}

.mentor-block {
    background-color: #bcbcdc;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
.mentor-block label,
.mentor-block button,
.mentor-block input,
.mentor-block textarea {
  font-size: 1rem;
  line-height: 1.5;
  width: 100%;
}


/* Slight lift on hover for dynamic feel */

.ai-agent:hover, .ai-summary:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    background: #e69500; /* softer orange */
    color: #111;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: transform 0.3s, box-shadow 0.3s;
     }
.tesai-image { 
    flex: 0 0 300px; 
    text-align: center; }
.tesai-image img { 
    max-width: 100%; 
    height: auto; 
    border-radius: 12px; 
    box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.tesai-qa { 
    flex: 1; 
    width: 250px; 
    height: 170px; 
}
.tesai-qa textarea {
width: 100%; 
height: 140px; 
padding: 1em; 
font-size: 1rem; 
border: 1px solid #ccc; 
border-radius: 8px; 
resize: vertical; 
background-color: #fff; 
color: #333; 
margin-bottom: 1em; 
font-family: inherit; 
}
/* Textarea tweaks for slightly softer look */
#agentInput {
    border: 2px solid #ccc;
    border-radius: 6px;
    padding: 0.8rem;
    font-size: 1rem;
    transition: border 0.3s, box-shadow 0.3s;
  }
  #agentInput:focus {
    border-color: #007acc;
    box-shadow: 0 0 5px rgba(0,122,204,0.5);
  }



body.dark-mode .tesai-qa textarea { 
    background-color: #1e1e1e; 
    color: #f1f1f1; 
    border: 1px solid #555; }
.tesai-qa button { 
    background-color: var(--primary); 
    color: blue; 
    padding: 0.7em 1.2em; 
    border: none; 
    border-radius: 6px; 
    cursor: pointer; 
    transition: background-color 0.3s ease; 
}
.tesai-qa button:hover { 
    background-color: #005599; 
}
#agentResponse { 
    
    margin-top: 1.2em;
    padding-bottom: 2em;
      }
      

/* General form styling */
.contact-section {
    max-width: 700px;
    margin: 50px auto;
    padding: 30px;
    background-color: var(--card-bg-color, #fff); /* Use your card background color variable */
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center; /* Center the heading and paragraph */
}

.contact-section h2 {
    color: var(--primary-text-color, #333); /* Use your primary text color */
    margin-bottom: 15px;
    font-size: 2.2em;
}

.contact-section p {
    color: var(--secondary-text-color, #555); /* Use your secondary text color */
    margin-bottom: 30px;
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px; /* Space between form groups */
    text-align: left; /* Align labels and inputs to the left */
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--primary-text-color, #333);
    font-size: 1.1em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color, #ddd); /* Use a border color variable */
    border-radius: 8px;
    font-size: 1em;
    color: var(--primary-text-color, #333);
    background-color: var(--input-bg-color, #f9f9f9);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box; /* Include padding and border in the element's total width and height */
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    border-color: var(--accent-color, #007bff); /* Use your accent color */
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25); /* Subtle focus shadow */
    outline: none;
}

.form-group textarea {
    resize: vertical; /* Allow vertical resizing only */
    min-height: 120px;
}

.submit-button {
    background-color: var(--accent-color, #007bff); /* Use your accent color for the button */
    color: white;
    padding: 14px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    align-self: center; /* Center the button in the column layout */
    margin-top: 10px;
}

.submit-button:hover {
    background-color: var(--accent-color-dark, #0056b3); /* A darker shade of your accent color */
    transform: translateY(-2px);
}

/* Error messages */
.error-message {
    color: #e74c3c; /* Red color for errors */
    font-size: 0.9em;
    margin-top: 5px;
    display: none; /* Hidden by default, shown by JS */
}

/* Form status messages (for success/error on submission) */
.form-status {
    margin-top: 20px;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
    display: none; /* Hidden by default, shown by JS */
}

.form-status.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}