/* ===== CSS RESET ===== */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body{
    width: 100%;
    height: 100%;
}

body{
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #222;
    background-color: #ffffff;
    overflow-x: hidden;
}
img{
    max-width: 100%;
    height: auto;
    display: block;
}

video{
    max-width: 100%;
}
a{
    text-decoration: none;
    color: inherit;
}

a:hover{
    opacity: 0.9;
}
button{
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}
section{
    width: 100%;
    position: relative;
}

.container{
    max-width:95%;
    margin:0 auto;
    padding: 0 20px;
}

/* ========= PAGE LOADER CSS শুরু ========= */
#pageLoader{
    position:fixed;
    inset:0;
    background:linear-gradient(
        135deg,
        #0f4c75,
        #1cb5e0,
        #38d9ff
    );
    background-size:400% 400%;
    animation:loaderBg 6s ease infinite;
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:100000;
}

@keyframes loaderBg{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

/* Loader Box */
.loader-box{
    text-align:center;
    color:#ffffff;
    animation:fadeIn 1s ease;
}

/* Spinner */
.spinner{
    width:70px;
    height:70px;
    border-radius:50%;
    border:6px solid rgba(255,255,255,0.3);
    border-top:6px solid #ffffff;
    margin:0 auto 20px;
    animation:spin 1.1s linear infinite;
}
.loder-img{
    width: 100px;
    height: auto;
}
@keyframes spin{
    to{transform:rotate(360deg);}
}

/* Text */
.loader-box h3{
    margin-bottom:6px;
    letter-spacing:1px;
}

.loader-box p{
    font-size:14px;
    opacity:0.9;
}

/* Fade out */
#pageLoader.hide{
    opacity:0;
    visibility:hidden;
    transition:0.6s ease;
}

/* Mobile */
@media(max-width:768px){
    .spinner{
        width:55px;
        height:55px;
    }
}
/* ========= PAGE LOADER CSS শেষ ========= */

/* ========= SCROLL PROGRESS BAR CSS শুরু ========= */
#scrollProgressContainer{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:5px;
    background:rgba(0,0,0,0.08);
    z-index:10000;
}

#scrollProgressBar{
    height:100%;
    width:0%;
    background:linear-gradient(
        90deg,
        #0f4c75,
        #1cb5e0,
        #38d9ff,
        #6fe7ff
    );
    background-size:300% 300%;
    animation:progressGlow 4s ease infinite;
    transition:width 0.15s ease;
}

/* Gradient animation */
@keyframes progressGlow{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

/* Mobile slightly thinner */
@media(max-width:768px){
    #scrollProgressContainer{
        height:4px;
    }
}

/* ========= SCROLL PROGRESS BAR CSS শেষ ========= */
/* ====== নেভমেনু CSS শুরু ====== */
/* Navbar Base */
.navbar{
    width:100%;
    padding:15px 25px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    background: linear-gradient(
        270deg,
        #0f4c75,
        #1cb5e0,
        #38d9ff,
        #6fe7ff
    );
    background-size: 600% 600%;
    animation: gradientMove 8s ease infinite;
     position:relative;
    z-index:9999;
}

/* Gradient Animation */
@keyframes gradientMove{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

/* Logo */
.logo img{
    height:50px;
}

/* Menu Desktop */
.nav-menu ul{
    list-style:none;
    display:flex;
    gap:30px;
}

.nav-menu ul li a{
    text-decoration:none;
    color:#fff;
    padding:8px 16px;
    border-radius:25px;
    transition:0.3s;
}

.nav-menu ul li a:hover{
    background:rgba(255,255,255,0.25);
}

/* Search */
.search-box input{
    padding:8px 14px;
    border:none;
    border-radius:20px;
    outline:none;
}

/* Hamburger */
.hamburger{
    display:none;
    font-size:26px;
    color:white;
    cursor:pointer;
}

/* =========================
   📱 Mobile (0–575px)
========================= */
@media (max-width:575px){

    .hamburger{
        display:block;
    }

    .nav-menu{
        position:absolute;
        top:80px;
        left:0;
        width:100%;
        background: linear-gradient(180deg,#0f4c75,#1cb5e0);
        display:none;
    }

    .nav-menu ul{
        flex-direction:column;
        align-items:center;
        padding:20px 0;
        gap:15px;
    }

    .search-box{
        display:none;
    }
}

/* =========================
   📱 Tablet (576–991px)
========================= */
@media (min-width:576px) and (max-width:991px){

    .hamburger{
        display:block;
    }

    .nav-menu{
        position:absolute;
        top:80px;
        left:0;
        width:100%;
        background: linear-gradient(180deg,#0f4c75,#1cb5e0);
        display:none;
    }

    .nav-menu ul{
        flex-direction:column;
        align-items:center;
        padding:25px 0;
        gap:18px;
    }

    .search-box{
        display:none;
    }
}

/* =========================
   💻 Laptop/Desktop (992px+)
========================= */
@media (min-width:992px){
    .nav-menu{
        display:block !important;
    }
}

/* ====== নেভমেনু CSS শেষ ====== */

/* ========= FOOTER SECTION CSS শুরু ========= */

.footer-section{
    padding:60px 0 30px;
    background:linear-gradient(135deg,#0f4c75,#1cb5e0,#38d9ff);
    background-size:400% 400%;
    animation:footerBg 12s ease infinite;
    color:#ffffff;
}

@keyframes footerBg{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

.footer-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:40px;
    margin-bottom:50px;
}

.footer-box h3,
.footer-box h4{
    margin-bottom:15px;
    color:#ffffff ;
}

.footer-box p{
    opacity:0.9;
    line-height:1.7;
    color: #fff;
}

/* Links */
.footer-box ul{
    list-style:none;
    padding:0;
    color: #fff;
}

.footer-box ul li{
    margin-bottom:10px;
}

.footer-box ul li a{
    color:#ffffff;
    text-decoration:none;
    opacity:0.9;
    transition:0.3s;
}

.footer-box ul li a:hover{
    opacity:1;
    text-decoration:underline;
}

/* Social */
/* ===== Footer Social Icons CSS শুরু ===== */

.footer-social{
    display:flex;
    gap:18px;
    margin-top:15px;
}

.social-icon{
    width:52px;
    height:52px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:24px;
    color:#ffffff;
    text-decoration:none;
    transition:0.35s ease;
    box-shadow:0 10px 25px rgba(0,0,0,0.25);
    animation:socialFloat 3s ease-in-out infinite;
}

/* Floating animation */
@keyframes socialFloat{
    0%{transform:translateY(0);}
    50%{transform:translateY(-6px);}
    100%{transform:translateY(0);}
}

/* Individual colors */
.facebook{
    background:#1877f2;
}
.youtube{
    background:#ff0000;
}
.whatsapp{
    background:#25d366;
}

/* Hover effects */
.social-icon:hover{
    transform:scale(1.15) rotate(8deg);
    box-shadow:0 15px 35px rgba(0,0,0,0.35);
}

/* Mobile center align */
@media(max-width:768px){
    .footer-social{
        justify-content:center;
    }
}

/* ===== Footer Social Icons CSS শেষ ===== */

.social-links{
    display:flex;
    gap:15px;
}

.social-links a{
    width:50px;
    height:42px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:30px;
    transition:0.35s;
}

.social-links a:hover{
    background:#ffffff;
    color:#0f4c75;
    transform:rotate(10deg) scale(1.1);
}

/* Bottom */
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.3);
    padding-top:20px;
    text-align:center;
    font-size:14px;
    opacity:0.9;
}

/* Animation base */
.animate{
    opacity:0;
    transform:translateY(35px);
}

.animate.show{
    opacity:1;
    transform:none;
    transition:0.7s ease;
    color: #333;
}
.animate.show{
    opacity:1;
    transform:none;
    transition:0.7s ease;
    color: #333;
}
.fade-up{transform:translateY(40px)}
.delay-1{transition-delay:.2s}
.delay-2{transition-delay:.4s}
.delay-3{transition-delay:.6s}

/* Mobile */
@media(max-width:992px){
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }
}

@media(max-width:600px){
    .footer-grid{
        grid-template-columns:1fr;
        text-align:center;
    }

    .social-links{
        justify-content:center;
    }
}

/* ========= FOOTER SECTION CSS শেষ ========= */

/* ========= FIXED WHATSAPP BUTTON CSS শুরু ========= */

.whatsapp-float{
    position:fixed;
    right:25px;
    bottom:120px;
    width:60px;
    height:60px;
    background:#25D366;
    color:#ffffff;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:32px;
    z-index:9999;
    text-decoration:none;

    /* Animation combo */
    animation:
        floatMove 3s ease-in-out infinite,
        rotateMove 6s linear infinite,
        pulseGlow 2.5s infinite;

    box-shadow:0 15px 35px rgba(0,0,0,0.35);
    transition:0.3s ease;
}

/* Hover আরও শক্তিশালী হবে */
.whatsapp-float:hover{
    transform:scale(1.15);
    background:#1ebe5d;
}

/* 🔄 Floating up-down */
@keyframes floatMove{
    0%{transform:translateY(0);}
    50%{transform:translateY(-10px);}
    100%{transform:translateY(0);}
}

/* 🔁 Slow rotate */
@keyframes rotateMove{
    0%{rotate:0deg;}
    100%{rotate:360deg;}
}

/* 🌊 Pulse glow */
@keyframes pulseGlow{
    0%{
        box-shadow:0 0 0 0 rgba(37,211,102,0.6);
    }
    70%{
        box-shadow:0 0 0 18px rgba(37,211,102,0);
    }
    100%{
        box-shadow:0 0 0 0 rgba(37,211,102,0);
    }
}

/* 📱 Mobile adjust */
@media(max-width:768px){
    .whatsapp-float{
        right:18px;
        bottom:90px;
        width:54px;
        height:54px;
        font-size:28px;
    }
}

/* ========= FIXED WHATSAPP BUTTON CSS শেষ ========= */
/* ========= BACK TO TOP BUTTON CSS শুরু ========= */

.back-to-top{
    position:fixed;
    right:25px;
    bottom:40px; /* WhatsApp বাটনের নিচে সুন্দরভাবে বসবে */
    width:52px;
    height:52px;
    border-radius:50%;
    background:linear-gradient(135deg,#0f4c75,#1cb5e0);
    color:#ffffff;
    font-size:22px;
    border:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:9998;

    opacity:0;
    visibility:hidden;

    /* Animation */
    animation:
        floatArrow 2.5s ease-in-out infinite,
        rotateArrow 6s linear infinite;

    box-shadow:0 12px 30px rgba(0,0,0,0.3);
    transition:0.3s ease;
}

/* Hover */
.back-to-top:hover{
    transform:scale(1.15);
    background:linear-gradient(135deg,#38d9ff,#6fe7ff);
}

/* Floating animation */
@keyframes floatArrow{
    0%{transform:translateY(0);}
    50%{transform:translateY(-8px);}
    100%{transform:translateY(0);}
}

/* Slow rotate */
@keyframes rotateArrow{
    0%{rotate:0deg;}
    100%{rotate:360deg;}
}

/* Show button */
.back-to-top.show{
    opacity:1;
    visibility:visible;
}

/* Mobile */
@media(max-width:768px){
    .back-to-top{
        right:18px;
        bottom:30px;
        width:46px;
        height:46px;
        font-size:20px;
    }
}

/* ========= BACK TO TOP BUTTON CSS শেষ ========= */

/* ========= STICKY CALL BUTTON CSS শুরু ========= */

.call-float{
    position:fixed;
    right:25px;
    bottom:200px; /* WhatsApp-এর উপরে থাকবে */
    width:58px;
    height:58px;
    border-radius:50%;
    background:linear-gradient(135deg,#ff9800,#ff5722);
    color:#ffffff;
    font-size:26px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    z-index:9999;

    /* Animation */
    animation:
        callFloat 2.8s ease-in-out infinite,
        callPulse 2s infinite;

    box-shadow:0 14px 35px rgba(0,0,0,0.35);
    transition:0.3s ease;
}

/* Hover */
.call-float:hover{
    transform:scale(1.15) rotate(-8deg);
    background:linear-gradient(135deg,#ff5722,#ff9800);
}

/* Floating */
@keyframes callFloat{
    0%{transform:translateY(0);}
    50%{transform:translateY(-10px);}
    100%{transform:translateY(0);}
}

/* Pulse ring */
@keyframes callPulse{
    0%{
        box-shadow:0 0 0 0 rgba(255,152,0,0.6);
    }
    70%{
        box-shadow:0 0 0 18px rgba(255,152,0,0);
    }
    100%{
        box-shadow:0 0 0 0 rgba(255,152,0,0);
    }
}

/* Mobile adjust */
@media(max-width:768px){
    .call-float{
        right:18px;
        bottom:170px;
        width:52px;
        height:52px;
        font-size:24px;
    }
}

/* ========= STICKY CALL BUTTON CSS শেষ ========= */

/* ===================================================
   COURSE PAGE CSS শুরু
   Animated • Gradient • Glass • Responsive
=================================================== */

/* ---------- Common ---------- */
.course-page {
    font-family: 'Segoe UI', sans-serif;
    color: #0f2a3d;
}

.container {
    width: 95%;
    margin: auto;
}

/* ---------- HERO SECTION ---------- */
.course-hero {
    position: relative;
    padding: 120px 0 100px;
    overflow: hidden;
    background: linear-gradient(
        120deg,
        #0f4c75,
        #1cb5e0,
        #38d9ff,
        #6fe7ff
    );
    background-size: 400% 400%;
    animation: heroGradient 12s ease infinite;
}

@keyframes heroGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.course-hero-content {
    max-width: 650px;
    margin: 0 auto;
}

.course-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 15px;
}

.course-subtitle {
    font-size: 18px;
    color: #e9faff;
    margin-bottom: 35px;
}

/* ---------- Buttons ---------- */
.course-hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-primary {
    padding: 14px 32px;
    background: #ffffff;
    color: #0f4c75;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.4s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.btn-outline {
    padding: 14px 32px;
    border: 2px solid #fff;
    color: #fff;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.4s;
}

.btn-outline:hover {
    background: #fff;
    color: #0f4c75;
}

/* ---------- SECTION TITLE ---------- */
.section-title {
    text-align: center;
    font-size: clamp(28px, 4vw, 36px);
    margin-bottom: 10px;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 25px;
    color: #555;
}

/* ---------- WHAT YOU WILL LEARN ---------- */
.course-learn {
    padding: 20px 0;
    background: #f7fbff;
}

.learn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 22px;
}

.learn-item {
    padding: 22px;
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    text-align: center;
    font-weight: 500;
    transition: 0.4s;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.learn-item:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 18px 40px rgba(0,0,0,0.15);
}

/* ---------- COURSE FOR ---------- */
.course-for {
    padding: 25px 0;
}

.course-for-list {
    max-width: 600px;
    margin: auto;
    list-style: none;
    padding: 0;
    text-align: center;
}

.course-for-list li {
    padding: 14px 0;
    font-size: 17px;
    border-bottom: 1px dashed #ccc;
}

/* ---------- FEATURES ---------- */
.course-features {
    padding: 30px 0;
    background: linear-gradient(135deg, #eef9ff, #ffffff);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 10px;
}

.feature-box {
    padding: 30px 25px;
    border-radius: 20px;
    background: rgba(255,255,255,0.65);
    backdrop-filter: blur(15px);
    text-align: center;
    font-weight: 600;
    transition: 0.4s;
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.feature-box:hover {
    transform: rotate(-1deg) translateY(-6px);
}

/* ---------- DURATION ---------- */
.parant1{
    display: flex;
    gap: 20px;
}
.course-duration {
    padding: 10px 0;
    flex: 1;
}

.duration-box {
    max-width: 420px;
    margin: auto;
    padding: 60px;
    border-radius: 22px;
    background: linear-gradient(135deg, #1cb5e0, #6fe7ff);
    color: #fff;
    text-align: center;
    box-shadow: 0 25px 60px rgba(0,0,0,0.25);
}

.duration-box p {
    margin: 10px 0;
    font-size: 17px;
}

/* ---------- RESULT ---------- */
.course-result {
    padding: 60px 0;
    background: #f7fbff;
    flex: 1;
}

.result-list {
    max-width: 600px;
    margin: auto;
    list-style: none;
    padding: 0;
    text-align: center;
}

.result-list li {
    padding: 12px 0;
    font-size: 17px;
}
/* 📱 Mobile */
@media (max-width: 768px){
    .parant1{
        flex-direction: column;
    }
}
/* ---------- FINAL CTA ---------- */
.course-cta {
    padding: 60px 0;
    background: linear-gradient(
        120deg,
        #0f4c75,
        #1cb5e0,
        #38d9ff
    );
    text-align: center;
}

.cta-title {
    color: #fff;
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 35px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-whatsapp {
    padding: 14px 32px;
    background: #25d366;
    color: #fff;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.4s;
}

.btn-whatsapp:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
    .course-hero {
        padding: 90px 0 80px;
    }

    .course-hero-content {
        text-align: center;
        margin: auto;
    }

    .course-hero-buttons {
        justify-content: center;
    }
}

/* ===================================================
   COURSE PAGE CSS শেষ
=================================================== */