.header {
    background-color: #4698a7;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2000;
    padding: 12px 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
}

.header.sticky {
    background-color: rgba(70, 152, 167, 0.95);
    padding: 8px 0;
    backdrop-filter: blur(5px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav li {
    margin: 0 20px;
    position: relative;
}

nav a {
    text-decoration: none;
    color: #46a1b3;
    font-weight: 500;
    padding: 12px 0;
    position: relative;
    transition: color 0.3s ease;
    display: inline-block;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #46a1b3;
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

.logo {
    display: flex;
    gap: 10px;
    text-decoration: none;
}

.internship a {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #ffffff;
    color: #004085 !important;
    padding: 8px 20px !important;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.internship a::after {
    display: none;
}

.internship a:hover {
    transform: translateY(-2px);
    background-color: #f0f8ff;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.internship img {
    height: 20px;
    width: auto;
}

.internship a:hover {
    color: #004085;
}

.logo img {
    height: 55px;
    width: auto;
    transition: 0.3s;
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    cursor: pointer;
    background: none;
    border: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 25px;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: #ffffff;
    font-weight: 500;
    font-size: 18px;
    padding: 5px 0;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #ffffff;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}
@media (max-width: 576px) {
    .header {
        padding: 10px 0;
    }

    .logo img {
        height: 45px;
    }

    .container {
        padding: 0 15px;
    }

    .nav-menu {
        padding: 20px 0;
        gap: 20px;
    }
}

@media (max-width: 1200px) {
    .mobile-nav-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        background: transparent;
        border: none;
        cursor: pointer;
        z-index: 2001;
    }

    .mobile-nav-toggle span {
        width: 100%;
        height: 3px;
        background-color: #fff;
        border-radius: 3px;
        transition: all 0.3s ease;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #4698a7;
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        gap: 25px;
        transform: translateY(-150%);
        opacity: 0;
        transition: all 0.4s ease-in-out;
        z-index: 1999;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-menu a {
        font-size: 15px;
        display: block;
    }

    .internship {
        margin-top: 10px;
    }

    .internship a {
        width: 100%;
        justify-content: center;
        padding: 10px 30px;
    }
}
.footer-small {
    font-size: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    text-align: center;
}

.footer-small a {
    text-decoration: none;
}
.footer-section {
    background-color: #000;
    color: #fff;
    padding-top: 60px;
    padding-bottom: 0;
    font-size: 0.9rem;
    text-align: left;
}

.footer-logo {
    width: 100%;
    max-width: 180px;
    height: auto;
    margin-bottom: 15px;
}

.footer-section h5 {
    color: #fff;
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-list li {
    margin-bottom: 12px;
}

.footer-list a {
    color: #ccc;
    text-decoration: none !important;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-list a:hover {
    color: #4e3db8;
    padding-left: 5px;
}

.footer-icon {
    color: #4e3db8;
    width: 25px;
    text-align: center;
    margin-right: 10px;
}

.contact-info li {
    display: flex;
    align-items: start;
    color: #ccc;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 45px);
    gap: 10px;
}

.social-grid a {
    width: 45px;
    height: 45px;
    background-color: #222;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 18px;
}

.social-grid a:hover {
    background-color: #4e3db8;
    transform: translateY(-3px);
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #333;
    margin-top: 40px;
    padding: 20px 0;
    background-color: #050505;
}

.footer-bottom a {
    color: #888;
    transition: 0.3s;
}

.footer-bottom a:hover {
    color: #fff;
}

@media (max-width: 991px) {
    .footer-section {
        text-align: center;
    }

    .footer-logo {
        max-width: 200px;
        margin: 0 auto 20px;
    }

    .social-grid {
        justify-content: center;
        margin: 0 auto;
    }

    .contact-info li {
        justify-content: center;
    }
}

#backToTop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    background: #46a1b3;
    color: rgb(255, 255, 255);
    border: none;
    font-size: 20px;
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    width: 50px;
    height: 50px;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s;
}

#backToTop:hover {
    background: #357f8f;
}

#btn-call,
#btn-wht {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: #46a1b3;
    color: white;
    border: none;
    padding: 12px 14px;
    font-size: 20px;
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 999;
}

#btn-wht {
    bottom: 80px;
    background: #25D366;
}

#btn-call:hover,
#btn-wht:hover {
    opacity: 0.9;
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: flex;
        z-index: 3001;
        margin-right: 30px;
    }

    .logo img {
        margin-left: 30px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: #000;
        color: #fff;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 25px;
        padding: 20px;
        transition: 0.4s ease;
        z-index: 3000;
    }

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

    .nav-menu a {
        color: white;
        font-size: 20px;
    }

    .internship a {
        background: #fff;
        color: #000 !important;
    }

    .mobile-nav-toggle span {
        display: block;
        height: 3px;
        width: 100%;
        background: #000;
        border-radius: 5px;
        transition: 0.3s ease;
    }

    .mobile-nav-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
        background: #fff;
    }

    .mobile-nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-nav-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
        background: #fff;
    }

    nav ul {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: white;
        flex-direction: column;
        justify-content: center;
        gap: 20px;
        padding: 20px 20px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition:
            opacity 0.4s ease,
            visibility 0.4s ease,
            transform 0.4s ease;
        z-index: 1000;
        overflow-y: auto;
    }

    nav ul.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        display: flex;
        background-color: #000;
    }

    nav ul li {
        opacity: 0;
        transform: translateY(15px);
        animation: fadeSlideIn 0.4s ease forwards;
    }

    nav ul li:nth-child(1) {
        animation-delay: 0.1s;
    }

    nav ul li:nth-child(2) {
        animation-delay: 0.2s;
    }

    nav ul li:nth-child(3) {
        animation-delay: 0.3s;
    }

    nav ul li:nth-child(4) {
        animation-delay: 0.4s;
    }

    nav ul li:nth-child(5) {
        animation-delay: 0.5s;
    }

    nav ul li:nth-child(6) {
        animation-delay: 0.6s;
    }

    @keyframes fadeSlideIn {
        from {
            opacity: 0;
            transform: translateY(15px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    nav ul:not(.active) li {
        animation: none;
    }
}
/* --- Footer Base --- */
.footer-bs5 {
    background-color: #000000; /* Pure Black layout */
    padding: 80px 0 20px;
    color: #ffffff;
    font-family: 'Segoe UI', Roboto, sans-serif;
    position: relative;
    overflow-x: hidden;
}

/* Typography */
.footer-bs5 h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 25px;
    letter-spacing: 0.5px;
}

/* Links Styling */
.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #b0b0b0; /* Light Gray */
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: block;
}

.footer-links a:hover {
    color: #4698a7; /* Tech Engineer Teal */
    transform: translateX(5px);
}

/* Contact List */
.contact-list li {
    display: flex;
    gap: 15px;
    margin-bottom: 18px;
    color: #b0b0b0;
    font-size: 14px;
}

.contact-list i {
    color: #5d3eff; /* Purple/Blue accent from screenshot */
    font-size: 16px;
    margin-top: 3px;
}

.contact-list a {
    color: #b0b0b0;
    text-decoration: none;
    transition: 0.3s;
}

.contact-list a:hover {
    color: #fff;
}

/* Social Icons */
.social-icons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 35px;
    height: 35px;
    background: rgba(255,255,255,0.1); /* Subtle circle bg */
    border-radius: 50%;
    color: #fff;
    margin-right: 10px;
    transition: 0.3s;
    font-size: 14px;
    text-decoration: none;
}

.social-icons a:hover {
    background: #4698a7;
    transform: translateY(-3px);
}

/* --- Floating Buttons --- */
.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    color: white;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(255,255,255,0.1);
    transition: transform 0.3s;
}

.float-btn:hover {
    transform: scale(1.1);
}

/* Left Bottom Corner */
.floating-left {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
}

.whatsapp { background-color: #25D366; }
.phone { background-color: #4698a7; }

/* Right Bottom Corner */
.to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    background-color: #333;
    opacity: 0.9;
}

/* --- Mobile Fixes --- */
@media (max-width: 991px) {
    .footer-bs5 {
        text-align: left;
    }
    /* Ensure columns have space on tablets/mobile */
    .footer-bs5 .col-lg-3 {
        margin-bottom: 40px;
    }
}