html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f7f9fb;
    box-sizing: border-box;
    width: 100%;
}
header {
    background-color: #0f62fe;
    color: white;
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(6px);
}
/* Logo */
.logo {
    font-size: 1.5rem;
    font-weight: bold;
    height: 50px;
    background-color: white;
}

.logo-container {
    display: flex;
    align-items: center;
}
.site-logo {
    height: 70px; /* adjust size */
    width: auto;
    margin-top: -6px;
}
/* NAV LINKS (Desktop) */
header nav {
  display: flex;
  gap: 25px;
}

header nav a {
    display: block;          /* ili iwe full clickable */
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    height: 35px;            /* height ya kudumu */
    line-height: 35px;       /* vertically center text */
    padding: 0 20px;         /* pande za kushoto/kulia tu */
    transition: color 0.3s ease;
}

header nav a:hover {
  color: #000;
}

/* HAMBURGER TOGGLE */
.menu-toggle {
    display: none;
    width: 30px;
    height: 24px;
    position: relative;
    cursor: pointer;
}

.menu-toggle span {
    position: absolute;
    height: 3px;
    width: 100%;
    background: #fff;
    left: 0;
    transition: 0.4s ease;
}

.menu-toggle span:nth-child(1) {
    top: 0;
}
.menu-toggle span:nth-child(2) {
    top: 10px;
}
.menu-toggle span:nth-child(3) {
    top: 20px;
}

/* Hamburger → X animation */
.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 10px;
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 10px;
}
nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}
/* ===== Kuweka Content katikati ===== */
section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px;
}
/* ===== Picha ziwe responsive ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 6px; /* kidogo zionekane smart */
}
.contact-social-container {
    background: #fff;
    padding: 25px;
    margin: 30px auto;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
    max-width: 800px;
    text-align: center;
}

.contact-social-container h2 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.contact-info p {
    margin: 8px 0;
    font-size: 16px;
}

.contact-info i {
    color: #0073e6;
    margin-right: 8px;
}

/* Social Links */
.social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 15px;
    gap: 12px;
}

.social-links .social-icon {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 6px;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
}

.social-links .fb { background: #1877F2; }
.social-links .tw { background: #1DA1F2; }
.social-links .ig { background: #E1306C; }
.social-links .wa { background: #25D366; }
.social-links .yt { background: #FF0000; }

.social-links .social-icon:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}
.ads-wrapper {
    border-top:1px solid #ccc;
    display: flex;
    justify-content: center;
    margin: 40px auto;
    width: 100%;
    border-top: 1px solid #ccc;
}
.ads-container {
    max-width: 100%;
    min-height: 90px;
    overflow: hidden;
    text-align: center;
}
.adsbygoogle {
    display: block !important;
    min-width: 300px;
    min-height: 90px;
    max-width: 100%;
}
@media screen and (max-width: 768px) {
    header nav {
        position: absolute;
        top: 80px;
        right: 0;
        background: rgba(34,34,34,0.97);
        flex-direction: column;
        width: 220px;
        text-align: left;
        padding: 10px 0;
        gap: 5px;
        /* hidden default - smooth transformation */
        transform: translateY(-20px) scaleY(0.9);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.4s ease, opacity 0.4s ease;
        border-radius: 0 0 8px 8px;
    }

    header nav a {
        padding: 12px 10px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    header nav a:hover {
        color: #0f62fe;
    }
    header nav.active {
        transform: translateY(0) scaleY(1);
        opacity: 1;
        pointer-events: auto;
    }

    .menu-toggle {
        display: block;
    }
    /* Ads spacing kwenye simu */
    .ads-wrapper {
        margin: 25px 0;
    }
    .grades-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    h2 {
        font-size: 18px; /* vichwa vikubwa vinasomeka vizuri */
    }


  /* Punguza spacing sections */
    section {
        padding: 25px 15px;
    }

}
@media screen and (max-width: 480px) {
    body {
        font-size: 14px; /* font ya kawaida 14px */
    }

    h2 {
        font-size: 15px; /* vichwa vikubwa vinasomeka vizuri */
    }
    .social-links {
        flex-direction: column;
        align-items: center;
    }
    .social-links .social-icon {
         width: 80%;
         justify-content: center;
    }
    .contact-social-container h2 { font-size: 14px; }
    .contact-social-container p { font-size: 14px; }
    .social-links .social-icon { font-size: 14px; }
}