/* Reset & base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    color: #111;
}

html,
body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    justify-content: center;
    /* horizontal center */
    align-items: center;
    /* vertical center */
}


/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-weight: bold;
    font-size: 1.5rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: inherit;
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #007BFF;
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Mobile menu wrapper: hidden by default */
.mobile-menu-wrapper {
    display: none;
    text-align: center;
    margin-top: 1rem;
    /* spacing below light-bug button */
}

/* Hamburger icon */
.mobile-menu-icon {
    font-size: 1.8rem;
    cursor: pointer;
    display: inline-block;
}

/* Mobile nav links (vertical layout) */
.mobile-nav-links {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
    display: none;
    /* hidden until hamburger clicked */
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-links li a {
    text-decoration: none;
    color: inherit;
    font-weight: 500;
    font-size: 1.2rem;
    transition: 0.3s;
}

.mobile-nav-links li a:hover {
    opacity: 0.8;
}

/* Show mobile menu only on small screens */
@media (max-width: 768px) {
    .mobile-menu-wrapper {
        display: block;
    }
}

.tryhackme-widget-wrapper {
    width: 100%;
    max-width: 600px;
    /* original widget width */
    margin: 1rem auto;
    overflow: hidden;
    position: relative;
    text-align: center;
    /* center scaled iframe */
}

.tryhackme-iframe {
    width: 600px;
    /* original width of the widget */
    height: 85px;
    /* original height */
    border: none;
    transform-origin: top left;
    display: inline-block;
}

/* Responsive scaling */
@media (max-width: 600px) {
    .tryhackme-iframe {
        transform: scale(calc(100vw / 600));
        width: 600px;
        /* keep original width for correct scaling */
        height: 85px;
        /* keep original height */
    }
}

/* Badge container */
.badges-container {
    margin-top: 1rem;
}

.badge-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}



/* Sections headers  */
.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #007bff;
    /* Blue for light mode */
    transition: color 0.3s ease;
}

body.dark .section-header h2 {
    color: #f4f4f4;
    /* Light text for dark mode */
}

.section-header p {
    font-size: 1.1rem;
    color: #333;
    transition: color 0.3s ease;
}

body.dark .section-header p {
    color: #ccc;
}


/* Light-bug */
.light-bug {
    font-size: 1.5rem;
    cursor: pointer;
}

.light-bug.on i {
    color: #FFD700;
    text-shadow: 0 0 8px #FFD700, 0 0 12px #FFD700;
}

/* Hero */
/* Cursor style */
.cursor {
    display: inline-block;
    background-color: currentColor;
    width: 2px;
    animation: blink 0.7s infinite;
    margin-left: 2px;
}

/* Blinking cursor animation */
@keyframes blink {

    0%,
    50%,
    100% {
        opacity: 1;
    }

    25%,
    75% {
        opacity: 0;
    }
}

.hero {
    max-width: 900px;
    margin: 3rem auto;
    padding: 3rem 2rem;
    text-align: center;
    border-radius: 20px;
    position: relative;
    z-index: 1;
    color: white;
    background: rgba(0, 0, 0, 0.776);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);

    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(255, 255, 255, 0.1),
        inset 0 0 4px 2px rgba(255, 255, 255, 0.2);

    overflow: hidden;
    transition: all 0.3s ease;

}

/* Image behind glass */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("https://images.pexels.com/photos/207580/pexels-photo-207580.jpeg") no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

/* Glass highlight */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg,
            rgba(255, 255, 255, 0.8),
            transparent,
            rgba(255, 255, 255, 0.3));
    z-index: 2;
}

/* Dark mode */
body.dark .hero {
    background: rgba(20, 20, 30, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow:
        0 6px 12px rgba(0, 0, 0, 0.2),
        inset 0 0 20px rgba(255, 255, 255, 0.03);
    color: #f4f4f4;
}

/* Sections */
section {
    padding: 4rem 2rem;
    max-width: 900px;
    margin: auto;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #007BFF;
    display: inline-block;
}


/* Light mode footer */
body:not(.dark) footer {
    background-color: #f5f5f5;
    color: #111;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    /* subtle top shadow */
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    /* optional extra differentiation */
}

/* Dark mode footer */
body.dark footer {
    background-color: #fff;
    color: #111;
    box-shadow: none;
    /* no shadow needed in dark mode if contrast is ok */
    border-top: none;
}

/* Footer base styling */
footer {
    text-align: center;
    padding: 2rem;
    transition: all 0.3s ease;
}

/* Dark Mode */
body.dark {
    background-color: #111;
    color: #f4f4f4;
}

body.dark .navbar {
    background-color: #222;
    box-shadow: 0 2px 5px rgba(255, 255, 255, 0.05);
}

body.dark .nav-links a::after {
    background: #FFD700;
}

body.dark .hero {
    background: linear-gradient(to right, #444, #000);
}

/* Responsive */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Certs list Design Lines 200 - 273*/
.cert-list {
    max-width: 900px;
    margin: 2rem auto;
    padding: 2rem;
    border-radius: 15px;
    background: rgba(0, 123, 255, 0.1);
    /* glassy blue */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 123, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 123, 255, 0.1);
    transition: all 0.3s ease;
}

body.dark .cert-list {
    background: rgba(0, 123, 255, 0.15);
    border: 1px solid rgba(234, 230, 202, 0.4);
    box-shadow: 0 8px 32px rgba(234, 230, 202, 0.2);
}

.cert-list h3 {
    font-size: 1.8rem;
    color: #007bff;
    margin-bottom: 1rem;
}

body.dark .cert-list h3 {
    color: #f4f4f4;
}

.cert-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cert-list li {
    margin-bottom: 1.2rem;
    padding: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

body.dark .cert-list li {
    background: rgba(0, 0, 0, 0.2);
}

.cert-list a {
    font-weight: 600;
    text-decoration: none;
    color: #007bff;
}

body.dark .cert-list a {
    color: #f4f4f4;
}

.cert-list small {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.9rem;
    color: #555;
}

body.dark .cert-list small {
    color: #ccc;
}

.cert-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.2);
}

/* Contact Section */
#contact {
    text-align: center;
    padding: 50px 20px;

}

#contact h2 {
    font-size: 2.5em;
    margin-bottom: 20px;

}

#contact p {
    font-size: 1.2em;
    margin-bottom: 20px;
}

#contact a {
    color: #0077b6;
    text-decoration: none;
    transition: 0.3s;
}

#contact a:hover {
    opacity: 0.8;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 30px;
    font-size: 2em;
}

.social-icons a {
    color: #333;
    transition: 0.3s;
}

.social-icons a:hover {
    transform: scale(1.2);
}

.social-icons a:nth-child(2) {
    /* LinkedIn color */
    color: #0077b5;
}


@media (max-width: 768px) {

    /* Navbar full width */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem;
        /* uniform padding */
        background-color: #fff;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        position: sticky;
        top: 0;
        z-index: 100;
        width: 100vw;
        /* use viewport width */
        box-sizing: border-box;
    }


    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background-color: #222;
        width: 70%;
        height: 100%;
        gap: 2rem;
        padding: 2rem;
        transition: right 0.3s ease;
    }

    .nav-links a {
        color: #fff;
        font-size: 1.2rem;
    }

    .nav-links.active {
        right: 0;
    }

    .menu-toggle {
        display: block;
        color: #007BFF;
    }

    body.dark .nav-links {
        background-color: #111;
    }
}

@media (max-width: 480px) {

    /* Navbar full width */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem;
        /* uniform padding */
        background-color: #fff;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        position: sticky;
        top: 0;
        z-index: 100;
        width: 100vw;
        /* use viewport width */
        box-sizing: border-box;
    }


    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section h2 {
        font-size: 1.5rem;
    }
}

/* Small screens: adjust hero box */
@media (max-width: 768px) {
    .hero {
        margin: 2rem 1rem;
        /* top/bottom margin smaller, horizontal spacing added */
        padding: 2rem 1.5rem;
        /* more padding inside box so content doesn't touch edges */
        border-radius: 12px;
        /* slightly smaller radius if needed */
    }
}