*{
            margin:0;
            padding:0;
            box-sizing:border-box;
            font-family:Arial,sans-serif;
        }

        body{
            background:#f4f7fb;
            color:#111827;
        }

        /* HERO */

        .hero{
            width:100%;
            min-height:55vh;
            background:
            linear-gradient(rgba(15,23,42,0.78),rgba(15,23,42,0.78)),
            url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1');
            background-size:cover;
            background-position:center;
            display:flex;
            justify-content:center;
            align-items:center;
            text-align:center;
            padding:20px;
        }

        .hero-content{
            max-width:850px;
            color:white;
        }

        .hero-content span{
            display:inline-block;
            background:rgba(255,255,255,0.15);
            padding:10px 22px;
            border-radius:40px;
            margin-bottom:25px;
            font-size:14px;
        }

        .hero-content h1{
            font-size:60px;
            margin-bottom:20px;
        }

        .hero-content p{
            font-size:18px;
            line-height:1.9;
            color:#e5e7eb;
        }

        /* SECTION */

        .syllabus-section{
            width:100%;
            padding:100px 20px;
        }

        .container{
            max-width:1200px;
            margin:auto;
        }

        /* TITLE */

        .section-title{
            text-align:center;
            margin-bottom:70px;
        }

        .section-title h2{
            font-size:48px;
            margin-bottom:20px;
        }

        .section-title p{
            max-width:700px;
            margin:auto;
            color:#555;
            line-height:1.8;
        }

        /* ACCORDION */

        .accordion{
            display:flex;
            flex-direction:column;
            gap:25px;
        }

        .accordion-item{
            background:white;
            border-radius:25px;
            overflow:hidden;
            box-shadow:0 12px 35px rgba(0,0,0,0.08);
        }

        /* HEADER */

        .accordion-header{
            width:100%;
            border:none;
            outline:none;
            background:white;
            padding:28px 30px;
            cursor:pointer;
            display:flex;
            justify-content:space-between;
            align-items:center;
            transition:0.3s;
        }

        .accordion-header:hover{
            background:#eff6ff;
        }

        .accordion-header h3{
            font-size:28px;
            color:#111827;
        }

        .accordion-header span{
            font-size:32px;
            color:#2563eb;
            transition:0.3s;
        }

        /* CONTENT */
		
		.accordion-content{
    max-height:0;
    overflow:hidden;
    transition:max-height 0.6s ease;
	 background:#f8fafc;
}

.accordion-item.active .accordion-content{
    max-height:5000px;
}

        .semester-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:25px;
            padding:35px;
        }

        /* SEMESTER CARD */

        .semester-card{
            background:white;
            border-radius:20px;
            padding:30px 20px;
            text-align:center;
            transition:0.4s;
            border:2px solid transparent;
        }

        .semester-card:hover{
            transform:translateY(-8px);
            border-color:#2563eb;
        }

        .semester-card i{
            width:70px;
            height:70px;
            background:#dbeafe;
            color:#2563eb;
            display:flex;
            justify-content:center;
            align-items:center;
            margin:auto;
            border-radius:18px;
            font-size:34px;
            margin-bottom:20px;
        }

        .semester-card h4{
            font-size:24px;
            margin-bottom:15px;
        }

        .semester-card p{
            color:#555;
            font-size:14px;
            margin-bottom:22px;
            line-height:1.7;
        }

        .pdf-btn{
            display:inline-block;
            background:#2563eb;
            color:white;
            text-decoration:none;
            padding:12px 22px;
            border-radius:10px;
            font-size:14px;
            font-weight:600;
            transition:0.3s;
        }

        .pdf-btn:hover{
            background:#1d4ed8;
        }

        /* ACTIVE */

        .accordion-item.active .accordion-content{
            max-height:3000px;
        }

        .accordion-item.active .accordion-header span{
            transform:rotate(45deg);
        }

        /* RESPONSIVE */

        @media(max-width:992px){

            .semester-grid{
                grid-template-columns:repeat(2,1fr);
            }

            .hero-content h1{
                font-size:44px;
            }
        }

        @media(max-width:768px){

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

            .hero-content h1{
                font-size:32px;
            }

            .hero-content p{
                font-size:15px;
            }

            .section-title h2{
                font-size:32px;
            }

            .accordion-header{
                padding:22px 20px;
            }

            .accordion-header h3{
                font-size:22px;
            }

            .semester-grid{
                padding:20px;
            }

            .syllabus-section{
                padding:70px 15px;
            }
        }