:root {
    --bg: #ffffff;
    --text: #111;
    --card: #f9f9f9;
    --text:#222;
    --accent:#4a90e2;
    --card:#ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
}
body {
    font-family: Arial, sans-serif;
    background-color: #ecbe99;
    color: var(--text);
    margin: 0;
    padding: 0;

}
header{
    background-color: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    padding: 2rem;
    justify-content: space-between;
    box-shadow:2px 8px var(--shadow);
    position: relative;
    top: 0;
    z-index: 1000;
}
nav ul{
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}
nav a{
    color: white;
    text-decoration: none;
    margin-left: 1rem;
}

.search-bar {
    padding: 1rem;
    text-align: center;
}

input[type="text"] {
    padding: 0.5rem;
    font-size: 1rem;
    width: 60%;
    max-width: 400px;
}

.flashcard-grid {
    display: grid;
    gap: 1rem;
    padding: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.flashcard {
    background-color: var(--card);
    border-radius: 11px;
    height: 180px;
    position: relative;
    perspective: 1000px;
    cursor: pointer;
    transition: transform 0.3s ease;
}
.flashcard:hover {
    transform: scale(1.03);

}
.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 11px;
}
.flashcard.flipped .flashcard-inner {
    transform: rotateY(180deg);
}
.flashcard .front,
.flashcard .back {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 11px;
    backface-visibility: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    box-sizing: border-box;
    font-size: 1rem;
}
.flashcard .front {
    background-color: var(--card);
    font-weight: bold;

}
.flashcard .back {
    background-color: #ffecb3;
    transform: rotateY(180deg);
}
.delete-btn {
    position: absolute;
    top: 5px;
    right: 8px;
    background: lightcoral;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 0.9rem;
    cursor: pointer;
    width: 25px;
    height: 25px;
    line-height: 25px;
}
.floating-btn {
    background: #4a90e2;
    color: white;
    font-size: 1.5rem;
    border: none;
    bottom: 30px;
    position: fixed;
    right: 30px;
    padding: 0.75rem 1rem;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}
.modal {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.6);
    z-index: 100;
}
.modal.hidden {
    display: none;

}
.modal-content {
    background: var(--card);
    padding: 2rem;
    border-radius: 10px;
    position: relative;
    width: 91%;
    text-align: center;
    max-width: 400px;
}

.large {
    height: 250px;
    margin: 1rem 0;
}

.close-btn {
    top: 10px;
    right: 10px;
    position: absolute;
    background: goldenrod;
    color: white;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    padding: 0.25rem 0.5rem;
}
footer{
    background-color: #4a90e2;
    font-family: cursive;
}