body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
    color: white;
}

.container {
    padding-top: 40px;
}

.navbar {
    background: rgba(0, 0, 0, 0.6) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.card {
    position: relative;
    border-radius: 25px;
    overflow: hidden;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    transition: 0.4s ease;
}

.card img {
    height: 100%;
    object-fit: cover;
    transition: 0.4s ease;
}

.card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.7);
}

.card:hover img {
    transform: scale(1.05);
}

/* REMOVE HEAVY OVERLAY */
.card::before {
    display: none;
}

/* Card Body */
.card-body {
    background: rgba(0,0,0,0.6);
    padding: 15px;
    text-align: center;
}

/* TITLE CLEAR FIX */
.card h6 {
    font-weight: 600;
    font-size: 17px;
    margin-bottom: 10px;
    color: #ffffff;
    text-shadow: 0px 2px 5px rgba(0,0,0,0.8);
}

/* BUTTONS */
.card .btn {
    border-radius: 50px;
    font-size: 13px;
    padding: 6px 18px;
    margin: 4px;
    border: none;
    transition: 0.3s ease;
}

.btn-success {
    background: linear-gradient(45deg, #00f2fe, #4facfe);
}

.btn-success:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px #4facfe;
}

.btn-warning {
    background: linear-gradient(45deg, #f7971e, #ffd200);
    color: black;
}

.btn-warning:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px #ffd200;
}

@media (max-width: 768px) {
    .card img {
        height: 220px;
    }
}
/* Make row flex */
.row {
    display: flex;
    flex-wrap: wrap;
}

/* Equal height columns */
.col-md-3 {
    display: flex;
}

/* Card full height */
.card {
    width: 100%;
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    overflow: hidden;
}

/* Fixed image container */
.card img {
    width: 100%;
    height: 350/* ===============================
   LIGHT THEME
================================= */

body.light-theme {
    background: #f5f5f5;
    color: #222;
}

body.light-theme .navbar {
    background: #ffffff !important;
}

body.light-theme .card {
    background: #ffffff;
    color: #222;
    border: 1px solid #ddd;
}

body.light-theme .card-body {
    background: #ffffff;
}

body.light-theme .card h6 {
    color: #111;
}

body.light-theme .btn-success {
    background: #198754;
}

body.light-theme .btn-warning {
    background: #ffc107;
}
	px;       /* same height for all */
    object-fit: cover;   /* crop nicely */
}

/* Card body expand */
.card-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
}
/* Default Dark */
.custom-navbar{
    background:#111;
    transition:0.4s ease;
}

/* Light Theme Navbar */
body.light-theme .custom-navbar{
    background:#ffffff;
}

body.light-theme .navbar-brand{
    color:#000 !important;
}

/* Light Theme Cards */
body.light-theme .card{
    background:#ffffff;
    color:#222;
    border:1px solid #ddd;
}

body.light-theme .card-body{
    background:#ffffff;
}

body.light-theme{
    background:#f5f5f5;
    color:#222;
}


body {
    background: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
    color: white;
    transition: 0.4s ease;

}
button{
    position:relative;
    overflow:hidden;
}

button::after{
    content:"";
    position:absolute;
    width:0;
    height:0;
    background:rgba(255,255,255,0.4);
    border-radius:50%;
    transform:translate(-50%,-50%);
    transition:width 0.4s ease, height 0.4s ease;
}

button:active::after{
    width:200px;
    height:200px;
}
@keyframes shake{
    0%{transform:translateX(0);}
    25%{transform:translateX(-5px);}
    50%{transform:translateX(5px);}
    75%{transform:translateX(-5px);}
    100%{transform:translateX(0);}
}

.shake{
    animation:shake 0.4s;
}
.footer-badge{
    text-align:center;
    padding:18px;
    background:linear-gradient(90deg,#141e30,#243b55);
    color:white;
    font-size:14px;
    letter-spacing:1px;
    margin-top:40px;
    animation:fadeFooter 1s ease;
}

@keyframes fadeFooter{
    from{opacity:0; transform:translateY(20px);}
    to{opacity:1; transform:translateY(0);}
}
.book-card{
    transition: all 0.4s ease;
}