/* ================== Global Body Styles ================== */
body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #0d1b2a;
    color: #2c3e50;
    margin: 0;
    padding: 0;
}

/* ================== Header Section ================== */
.main-header {
    height: 60px;
    background: linear-gradient(135deg, #003366, #005580);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0px 30px;
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(6px);
}

/* ================== Logo Title ================== */
.logo-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-title h1 {
    font-size: 1.8rem;
    font-weight: bold;
    letter-spacing: 1px;
    padding-bottom: 5px;
}

.logo-title h1 span {
    color: #00bcd4;
}

/* ================== Navigation Links ================== */
.nav-links a {
    margin-left: 25px;
    text-decoration: none;
    color: white;
    font-weight: 510;
    transition: color 0.3s, border-bottom 0.3s;
    position: relative;
}

.nav-links a::after {
    content: "";
    display: block;
    height: 2px;
    width: 0%;
    background: #00bcd4;
    position: absolute;
    bottom: -5px;
    left: 0;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #00bcd4;
}

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

/* ================== Responsive Header ================== */
@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        display: flex;
        flex-wrap: wrap;
        margin-top: 10px;
    }

    .nav-links a {
        margin: 10px 15px 0 0;
    }
}

/* ================== Maharashtra Board Syllabus Heading================== */
h2 {
    font-weight: 700;
    color: #00bcd4;
}

/* ================== Class Card ================== */
.class-card {
    background: rgba(0, 51, 102, 0.8);
    color: #fff;
    border-radius: 14px;
    padding: 15px 10px;
    height: 56px;
    width: 130px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.class-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
    background-color: #004080;
}

/* ================== Chapter Box ================== */
.chapter-box {
    background: white;
    border-radius: 12px;
    padding: 18px;
    border-left: 5px solid #0d6efd;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease;
}

.chapter-box:hover {
    transform: translateY(-4px);
}

.chapter-box h5 {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #003366;
}

.chapter-box img {
    width: 24px;
    height: 24px;
}

/* ================== Info Badges ================== */
.info-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

.info-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #e0f0ff;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #004080;
    box-shadow: inset 0 0 3px rgba(0, 123, 255, 0.1);
}

.info-badge i {
    color: #0d6efd;
}

/* ================== Search Bar ================== */
.search-bar {
    max-width: 400px;
    margin: 0 auto 30px;
}

/* ================== Chapter Section ================== */
.chapter-section {
    display: none;
    margin-top: 35px;
    animation: fadeIn 0.5s ease;
}

/* ================== Sub Heading ================== */
h3 {
    font-size: large;
    font-weight: bold;
    margin-bottom: 10px;
}

/* ================== Footer ================== */
.footer {
    background-color: #002244;
    color: white;
    padding: 20px 20px 10px;
}

.footer-flex {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    text-align: left;
    margin-bottom: 20px;
}

.footer-block {
    max-width: 255px;
}

.footer-contact-heading,
.footer-mathverse-heading,
.footer-nav-heading {
    color: #00bcd4;
}

.footer-block a {
    display: block;
    color: white;
    text-decoration: none;
    margin: 5px 0;
}

.footer-block a:hover {
    color: #00bcd4;
}

.footer-bottom {
    text-align: center;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 10px;
}

/* ================== Animations ================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}