/* Portfolio Website - Main Stylesheet */

:root {
    --maroon: #550000;
    --beige: #fbd990;
    --white: #ffffff;
    --black: #000000;
    /*--beige: #EBDDBE;*/
}

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

body {
    font-family: "Calibri", "Carlito", sans-serif;
    font-size: 1.125rem;
    /*font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;*/
    background-color: var(--white);
    color: var(--black);
    display: flex;
    min-height: 100vh;
}

/* --- NAVIGATION --- */

 /* --- 3. DESKTOP NAVIGATION --- */
        nav.desktop-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: 250px;
            height: 100vh;
            background-color: var(--maroon);
            padding: 1rem 1rem;
            overflow-y: auto;
            z-index: 100;
            display: block;
        }

        nav.desktop-nav h1 {
            color: var(--white);
            font-size: 1.725rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        }

        nav.desktop-nav ul { list-style: none; }
        nav.desktop-nav ul li { margin-bottom: 0.5rem; }

        nav.desktop-nav a {
            color: var(--white);
            text-decoration: none;
            display: block;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background-color 0.3s;
        }

        nav.desktop-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }

        nav.desktop-nav a.active {
            color: var(--beige);
        }

        nav.desktop-nav a.active-section {
            background-color: rgba(255, 255, 255, 0.15);
        }

        nav.desktop-nav .section-title {
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            text-transform: uppercase;
            font-weight: 600;
        }
        nav.desktop-nav .section-title:first-child { margin-top: 0; }

        nav.desktop-nav .subsection {
            margin-top: 0.5rem;
            margin-bottom: 0.5rem;
            margin-left: 20px;
            font-weight: 600;
        }
        

/* --- 5. MOBILE MENU ELEMENTS (Corrected for Blocking Issue) --- */
        
        #mobile-menu-toggle {
            display: none;
        }

        .mobile-top-bar {
            display: none; /* Hidden on desktop */
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background-color: var(--maroon);
            color: var(--white);
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 1000;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }

        .hamburger-label {
            cursor: pointer;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            /* Ensure hamburger is clickable */
            position: relative; 
            z-index: 1002; /* Force hamburger to be ABOVE the menu even if menu is partially there */
        }

        .brand-name {
            font-size: 1.725rem;
            font-weight: bold;
        }

        .mobile-nav-overlay {
            display: none; /* Hidden on desktop */
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            max-width: 100vw; /* Never exceed viewport width */
            height: 100vh;
            background-color: var(--maroon);
            z-index: 1001;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            overflow-y: auto; /* Allows scrolling if menu is too long */
            /* Start hidden */
            visibility: hidden; 
            opacity: 0;
            transform: translateY(-100%);
            transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out, visibility 0.3s;
            padding-top: 80px; /* Space for the close button */
            padding-bottom: 20px; /* Extra space at the bottom */
        }

        .close-label {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 2.5rem;
            cursor: pointer;
            color: var(--white);
            line-height: 1;
            padding: 10px;
            pointer-events: none; /* Disabled when menu is closed */
        }

        .mobile-nav-links {
            list-style: none;
            width: 100%;
            max-width: 100%; /* Never exceed parent */
            margin-left: 0; /* Reset any global margin that might push it */
            padding-left: 20px; /* Add padding inside instead of margin */
            padding-right: 20px;
            box-sizing: border-box;
        }

        .mobile-nav-links .section-title a {
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--white);
            margin-top: 15px;
            padding: 5px 10px;
        }

        .mobile-nav-links .subsection a {
            letter-spacing: 0.05em;
            color: var(--white);
            margin-top: 15px;
            padding: 5px 20px;
        }

        .mobile-nav-links li { margin: 0px 0; }

        .mobile-nav-links a {
            color: var(--white);
            text-decoration: none;
            font-weight: 600;
            padding: 8px 8px;
            display: block;
            border-radius: 4px;
            transition: background-color 0.3s;
        }

        .mobile-nav-links a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }

        .mobile-nav-links a.active-section {
            background-color: rgba(255, 255, 255, 0.15);
        }

        .mobile-nav-links a.active {
            color: var(--beige);
        }

        /* --- 6. MEDIA QUERY: MOBILE ACTIVATION --- */
        @media (max-width: 768px) {
            /* Hide Desktop Nav */
            nav.desktop-nav { 
                display: none; 
            }

            /* Reset Main Container */
            main {
                margin-left: 0;
                padding: 2rem 1.5rem; /* Keep your existing padding */
                padding-top: 0; /* Reset to ensure we control it via h1 */
            }

            /* THE CRITICAL FIX: Target the H1 inside main directly */
            main h1 {
                margin-top: 40px !important; 
                padding-top: 0;
            }

            main h2 {
                margin-top: 40px !important; 
                padding-top: 0;
            }

            /* Show Mobile Top Bar */
            .mobile-top-bar { 
                display: flex; 
            }

            /* Setup Mobile Overlay */
            .mobile-nav-overlay { 
                display: flex; 
                visibility: hidden;
                opacity: 0;
                pointer-events: none;
            }

            .close-label { 
                pointer-events: none; 
            }
        }

        /* --- 7. TOGGLE LOGIC (The Fix) --- */
        
        /* When Checked: Make Menu Visible and Slide Down */
        #mobile-menu-toggle:checked ~ .mobile-nav-overlay {
            visibility: visible;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto; /* Enable clicks on menu items */
        }

        /* When Checked: Hide Top Bar */
        #mobile-menu-toggle:checked ~ .mobile-top-bar {
            display: none; /* Completely remove top bar from layout */
        }
        
        /* When Checked: Enable Close Button */
        #mobile-menu-toggle:checked ~ .mobile-nav-overlay .close-label {
            pointer-events: auto;
        }


/* --- MAIN CONTENT --- */
/* Main Content Area */
main {
    margin-left: 250px;
    flex: 1;
    padding: 1rem 3rem 3rem 3rem; /* top, right, bottom, left */
    transition: margin-left 0.3s;
}

/* Typography */
h1, h2, h3 {
    color: var(--black);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
     font-weight: bolder;
    color: var(--maroon);
    margin-top: 0;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    color: var(--black);
    font-size: 1.25rem;
    font-weight: normal;
    margin-bottom: 5px;
}

p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

a {
    color: var(--maroon);
    transition: color 0.3s;
}

a:hover {
    color: var(--black);
}

/* Sections */
section {
    margin-top: 1rem;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    main {
        margin-left: 0;
        padding: 2rem 1.5rem;
    }
}

/* Increase space between items in lists */
  .spaced-list li {
    margin-bottom: 10px;
    padding-left: 5px;   /* Indents the content including bullets/numbers */
    margin-left: 40px;    /* Moves the entire list box to the right */
  }
  .spaced-list li:last-child {
    margin-bottom: 0;
  }

  .blog-list li{
    margin-bottom: 10px;
    padding-left: 5px;   /* Indents the content including bullets/numbers */
    margin-left: 40px;    /* Moves the entire list box to the right */
  }

/* Teaching entries */
    .term-list li {
        padding-left: 5px;
        margin-left: 20px;
    }
    .lecture-list li {
        list-style-type: none;
        padding-left: 0px;
        margin-left: 25px;
    }
    .lecture-list li:last-child {
    margin-bottom: 15px;
    }

/* Main content */
    .article-content {
    max-width: min(75ch, 800px);
    }

    @media (max-width: 768px) {
        .article-content {
        max-width: 100%;
        padding: 0 1rem;
        }
    }

/* Two columns */
    .two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two equal columns */
    gap: 40px;
    }

    @media (max-width: 768px) {
    .two-columns {
        grid-template-columns: 1fr; /* Stack columns on mobile */
    }
    }


/* --- IMAGES --- */
/* Picture on the side */
    .content-wrapper {
            display: flex;
            gap: 40px;
    }
    .main-content {
            flex: 1;
    }
    .sidebar {
            flex-shrink: 0;
    }
    .sidebar img {
            width: 100%;           
            height: auto;
            margin-bottom: 5px;
    }
    @media (max-width: 1000px) {
        .content-wrapper {
                flex-direction: column;
            }
        .sidebar {
                width: 100%;
            }
    }

/* Bottom picture */
    .panoramic-photo{
        width: 100%;
        margin-top: 40px;
        margin-bottom: 5px;
    }
/* Blog pictures */
     .blog-photo-landscape{
        width: 100%;
        max-width: 800px;
        margin-top: 10px;
        margin-bottom: 10px;
    }

    .blog-photo-portrait{
        width: 50%;
        max-width: 400px;
        margin-top: 10px;
        margin-bottom: 10px;
        display: block;       /* Makes the image behave like a block element */
        margin-left: auto;    /* Pushes left margin to auto */
        margin-right: auto;
    }

    .image-grid {
        display: grid;
        grid-template-columns: 1fr 1fr; /* Two equal columns */
        gap: 20px;
        margin-top: 10px;
        margin-bottom: 10px;
        }

    .image-grid img {
        width: 90%;
        height: auto;
        display: block;
        }

    .blog-graph{
        max-width: 800px;
        margin-top: 10px;
        margin-bottom: 10px;
        display: block;       /* Makes the image behave like a block element */
        margin-left: auto;    /* Pushes left margin to auto */
        margin-right: auto;
    }

/* Certificates */
    .certificate{
        width: 300px;
        margin-top: 20px;
        margin-bottom: 10px;
        display: block; 
        margin-left: auto;    /* Pushes left margin to auto */
        margin-right: auto;
    }