:root{
--blue:#1e73be;
--orange:#ff7a00;
--white:#ffffff;
--light:#f5f8fc;
}

*{
margin:0;
padding:0;
box-sizing:border-box;
}

body{
font-family:'Inter',sans-serif;
background:var(--white);
color:#1e293b;
overflow-x:hidden;
}

/* NAVBAR */

.navbar{
display:flex;
justify-content:space-between;
align-items:center;
padding:18px 70px;
background:white;
position:sticky;
top:0;
z-index:1000;
box-shadow:0 2px 10px rgba(0,0,0,0.05);
}

.logo-box{
display:flex;
align-items:center;
gap:10px;
}

.logo-box img{
width:42px;
}

nav{
display:flex;
align-items:center;
gap:25px;
}

nav a{
text-decoration:none;
color:#1e293b;
font-weight:500;
}

.book-btn{
background:var(--orange);
padding:12px 18px;
border-radius:10px;
color:white !important;
text-decoration:none;
font-weight:600;
}

/* HERO */

.hero{
height:95vh;
background:
linear-gradient(rgba(30,115,190,0.75),
rgba(0,0,0,0.55)),
url('hero.jpg') center/cover;
display:flex;
justify-content:center;
align-items:center;
text-align:center;
padding:20px;
position:relative;
}

.hero-content{
max-width:750px;
color:white;
animation:fadeUp 1s ease;
}

.hero h1{
font-size:64px;
line-height:1.1;
margin-bottom:20px;
}

.hero p{
font-size:20px;
line-height:1.7;
margin-bottom:35px;
}

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

.primary-btn{
background:var(--blue);
padding:14px 24px;
border-radius:10px;
color:white;
text-decoration:none;
font-weight:600;
transition:0.3s;
}

.primary-btn:hover{
transform:translateY(-4px);
}

.secondary-btn{
border:2px solid white;
padding:14px 24px;
border-radius:10px;
color:white;
text-decoration:none;
font-weight:600;
transition:0.3s;
}

.secondary-btn:hover{
background:white;
color:var(--blue);
}

/* ABOUT PREVIEW */

.about-preview{
display:flex;
align-items:center;
justify-content:space-between;
padding:100px 80px;
gap:60px;
background:var(--light);
}

.about-text{
flex:1;
}

.about-text h2{
font-size:42px;
margin-bottom:20px;
}

.about-text p{
line-height:1.8;
margin-bottom:25px;
}

.about-image img{
width:350px;
border-radius:25px;
box-shadow:0 20px 40px rgba(0,0,0,0.1);
}

/* COURSES */

/* COURSES */

.courses-section{
padding:100px 80px;
text-align:center;
background:#f8fbff;
}

.courses-section h2{
font-size:48px;
margin-bottom:60px;
}

.courses-grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:35px;
}
/* COURSES PAGE HERO */

.courses-hero{
padding:120px 20px 70px;
text-align:center;
background:linear-gradient(135deg,#1e73be,#2563eb);
color:white;
}

.courses-hero h1{
font-size:58px;
margin-bottom:20px;
}

.courses-hero p{
max-width:700px;
margin:auto;
font-size:20px;
line-height:1.8;
}

/* PREMIUM GRID */

.courses-page-grid{
padding:100px 80px;
display:grid;
grid-template-columns:repeat(3,1fr);
gap:40px;
background:#f8fbff;
}

/* PREMIUM CARD */

.premium-course-card{
background:white;
border-radius:30px;
overflow:hidden;
box-shadow:0 20px 45px rgba(0,0,0,0.08);
transition:0.4s;
}

.premium-course-card:hover{
transform:translateY(-12px);
box-shadow:0 30px 55px rgba(0,0,0,0.12);
}

.premium-course-card img{
width:100%;
height:240px;
object-fit:cover;
}

.premium-content{
padding:35px;
}

/* BADGES */

.badges{
display:flex;
gap:10px;
margin-bottom:18px;
}

.badge{
padding:8px 14px;
border-radius:30px;
font-size:14px;
font-weight:600;
}

.badge.blue{
background:#dbeafe;
color:#1e73be;
}

.badge.orange{
background:#ffedd5;
color:#ea580c;
}

/* TITLES */

.premium-content h2{
font-size:32px;
margin-bottom:15px;
color:#1e73be;
}

.premium-content p{
line-height:1.8;
margin-bottom:25px;
color:#475569;
}

/* INFO */

.course-info{
display:flex;
justify-content:space-between;
margin-bottom:25px;
padding-bottom:20px;
border-bottom:1px solid #e2e8f0;
}

.course-info div{
font-size:15px;
color:#334155;
}

/* LIST */

.premium-content ul{
list-style:none;
padding:0;
margin-bottom:30px;
}

.premium-content li{
margin-bottom:12px;
color:#334155;
}

/* MOBILE */

@media(max-width:1000px){

.courses-page-grid{
grid-template-columns:1fr;
padding:70px 20px;
}

.courses-hero h1{
font-size:42px;
}

}

/* CARD */

.course-card{
background:white;
border-radius:28px;
overflow:hidden;
box-shadow:0 15px 40px rgba(0,0,0,0.08);
transition:0.4s;
position:relative;
}

.course-card:hover{
transform:translateY(-15px) scale(1.02);
box-shadow:0 25px 50px rgba(0,0,0,0.12);
}

.course-img{
width:100%;
height:230px;
object-fit:cover;
}

.course-content{
padding:30px;
text-align:left;
}

.course-content h3{
font-size:28px;
margin:15px 0;
color:#1e73be;
}

.course-content p{
line-height:1.8;
color:#475569;
margin-bottom:20px;
}

/* TAG */

.tag{
display:inline-block;
padding:8px 14px;
border-radius:30px;
font-size:14px;
font-weight:600;
margin-bottom:10px;
}

.beginner{
background:#dbeafe;
color:#1e73be;
}

.advanced{
background:#ffedd5;
color:#ea580c;
}

/* LIST */

.course-content ul{
list-style:none;
padding:0;
margin-bottom:25px;
}

.course-content li{
margin-bottom:10px;
color:#334155;
}

/* BUTTON */

.course-content .primary-btn{
display:inline-block;
}

/* MOBILE */

@media(max-width:900px){

.courses-grid{
grid-template-columns:1fr;
}

}
/* CTA */

.cta{
margin:80px;
padding:80px;
text-align:center;
border-radius:30px;
background:linear-gradient(135deg,var(--blue),var(--orange));
color:white;
}

.cta h2{
font-size:42px;
margin-bottom:25px;
}

.big-btn{
display:inline-block;
padding:16px 30px;
}

/* FOOTER */

footer{
background:#0f172a;
color:white;
padding:50px 20px;
text-align:center;
}

.socials{
margin:20px 0;
}

.socials i{
font-size:22px;
margin:0 12px;
cursor:pointer;
transition:0.3s;
}

.socials i:hover{
color:var(--orange);
}

/* ABOUT PAGE */

.about-page{
display:flex;
align-items:center;
justify-content:space-between;
padding:100px 80px;
gap:60px;
}

.about-page img{
width:350px;
border-radius:25px;
}

.about-page-text h1{
font-size:50px;
margin-bottom:25px;
}

.about-page-text p{
line-height:1.9;
margin-bottom:20px;
}

/* BOOK PAGE */

.book-section{
padding:100px 20px;
text-align:center;
}

.book-section h1{
font-size:48px;
margin-bottom:40px;
}

.form-box{
max-width:500px;
margin:auto;
background:white;
padding:40px;
border-radius:25px;
box-shadow:0 20px 40px rgba(0,0,0,0.08);
}

.form-box input,
.form-box select{
width:100%;
padding:15px;
margin-bottom:20px;
border-radius:10px;
border:1px solid #ddd;
font-size:16px;
}

.submit-btn{
border:none;
width:100%;
cursor:pointer;
}

/* ANIMATION */

.reveal{
opacity:0;
transform:translateY(40px);
transition:1s;
}

.reveal.active{
opacity:1;
transform:translateY(0);
}

@keyframes fadeUp{
from{
opacity:0;
transform:translateY(30px);
}
to{
opacity:1;
transform:translateY(0);
}
}

/* MOBILE */

.menu{
display:none;
font-size:26px;
cursor:pointer;
}

@media(max-width:900px){

.navbar{
padding:18px 20px;
}

nav{
display:none;
position:absolute;
top:80px;
right:20px;
background:white;
padding:20px;
border-radius:15px;
flex-direction:column;
box-shadow:0 10px 30px rgba(0,0,0,0.1);
}

.menu{
display:block;
}

.hero h1{
font-size:42px;
}

.about-preview,
.about-page{
flex-direction:column;
text-align:center;
padding:70px 25px;
}

.courses-grid{
grid-template-columns:1fr;
}

.cta{
margin:20px;
padding:50px 20px;
}

.hero-buttons{
flex-direction:column;
}

}