:root {
    --main-bg: #151a1e;
    --main-text: #eaeaea;
    --accent: #20c997;
    --nav-bg: #23252f;
    --section-bg: #21232c;
    --card-bg: #252837;
    --card-text: #eaeaea;
    --nav-height: 72px;
    --burger-color: #ffb300; /* Orange for dark theme */
    --burger-color-active: #ffe082; /* Light orange when active */
}

body.light-theme {
    --main-bg: #f4f4f4;
    --main-text: #222;
    --accent: #20a177;
    --nav-bg: #fff;
    --section-bg: #eaeaea;
    --card-bg: #fff;
    --card-text: #222;
    --burger-color: #283593; /* Indigo for light theme */
    --burger-color-active: #7986cb; /* Lighter indigo when active */
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    margin: 0;
    background: var(--main-bg);
    color: var(--main-text);
    transition: background 0.4s, color 0.4s;
}

/* Navbar */
#navbar {
    background: var(--nav-bg);
    color: var(--main-text);
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: top 0.4s, height 0.3s;
    height: var(--nav-height);
    box-shadow: 0 2px 8px rgba(20, 22, 30, 0.02);
    display: block;
}
#navbar.hide {
    top: -100px;
}

.nav-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    height: 100%;
    padding: 8px 20px;
}

#nav-toggle {
    display: none;
    background: none;
    border: none;
    outline: none;
    cursor: pointer;
    height: 40px;
    width: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 105;
    margin-right: 12px;
    order: 0;
}
#nav-toggle .bar {
    width: 26px;
    height: 4px;
    background: var(--burger-color);
    margin: 4px 0;
    border-radius: 2px;
    display: block;
    transition: all 0.3s;
}
#nav-toggle.active .bar {
    background: var(--burger-color-active);
}
#nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
#nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}
#nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.logo {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--main-text);
    margin-right: 16px;
    order: 1;
}

#theme-toggle {
    background: none;
    border: none;
    font-size: 1.4em;
    cursor: pointer;
    padding: 8px;
    color: var(--accent);
    outline: none;
    margin-left: 12px;
    margin-right: 10px;
    order: 2;
}
#theme-toggle:focus {
    outline: 2px dashed var(--accent);
}

#nav-menu {
    display: flex;
    gap: 25px;
    list-style: none;
    margin: 0;
    align-items: center;
    transition: max-height 0.3s;
    order: 3;
}
#nav-menu a {
    color: var(--main-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
#nav-menu a:hover {
    color: var(--accent);
}

@media (max-width: 900px) {
    .nav-container {
        flex-direction: row;
        justify-content: flex-start;
        padding: 4px 7px;
    }
    #nav-toggle {
    display: flex;
    }
    #theme-toggle {
        margin-left: auto;
        margin-right: 6px;
    }
    .logo {
        margin-right: 12px;
    }
    #nav-menu {
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--nav-bg);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        transition: max-height 0.4s;
    }
    #nav-menu.open {
        max-height: 600px;
    }
    #nav-menu li {
        margin: 0;
    }
    #nav-menu a {
        padding: 20px 24px;
        display: block;
    }
    }

    /* Section Styles */
    .main-section {
    background: var(--section-bg);
    min-height: 300px;
    transition: background 0.4s;
    }
    .home-content {
    text-align: center;
    padding: 90px 10px 60px 10px;
    }
    .home-content h2 {
    font-size: 2.5rem;
    }
    .home-content span {
    color: var(--accent);
    }
    .cta-btn {
    background: var(--accent);
    color: #222;
    padding: 12px 28px;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 25px;
    display: inline-block;
    transition: background 0.2s, color 0.2s;
    }
    .cta-btn:hover {
    background: #11997a;
    color: #fff;
    }
    .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px 20px;
    }
    section h2 {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 5px;
    margin-bottom: 25px;
    }
    section ul,
    section p {
    font-size: 1.08rem;
    }
    section ul {
    padding-left: 18px;
    }
    .project {
    background: var(--card-bg);
    color: var(--card-text);
    margin-bottom: 20px;
    padding: 12px 18px;
    border-radius: 7px;
    transition: background 0.4s, color 0.4s;
    }
    b {
    color: var(--accent);
    }
    footer {
    text-align: center;
    padding: 18px;
    background: var(--nav-bg);
    color: #aaa;
    font-size: 0.95rem;
    margin-top: 40px;
    }

    /* Responsive Sections */
    @media (max-width: 700px) {
    .nav-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .container {
        padding: 30px 7px;
    }
    .main-section {
        padding: 32px 0;
    }
    }