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

body {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 500;
    min-height: 100vh;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.side-panel {
    position: relative;
    width: 35%;
    min-height: 100vh;
}

.bg-sidebar {
    background-image: url('images/bg-main-desktop.png');
    background-size: cover;
    background-position: center;
    height: 100%;
    width: 100%;
}

/* Card Visuals */
.cards-wrapper {
    position: absolute;
    top: 50%;
    right: -20%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 2rem;
    color: white;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.card-top,
.card-bottom {
    position: relative;
    width: 447px;
}

.card-top {
    margin-left: -3rem;
    z-index: 2;
}

.card-content {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-logo {
    width: 80px;
}

#display-number {
    font-size: 1.7rem;
    margin-top: auto;
    margin-bottom: 1.5rem;
}

.card-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.card-bottom {
    margin-left: 3rem;
}

#display-cvc {
    position: absolute;
    right: 12%;
    top: 47%;
    font-size: 0.9rem;
}

.form-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-left: 16rem;
    max-width: 50%;
    flex-direction: column;
}

.card-details {
    display: flex;
    flex-direction: column;
}

input {
    display: block;
    border: 1px solid #21092f;
    padding: .8rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: "Space Grotesk", sans-serif;
    color: #21092f;
}

input:focus {
    border-color: #6448fe;
}

.number {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    column-gap: 0.5rem;
}

.cvc,
#cvc {
    grid-column: span 2;
}

.number>input {
    width: 100%;
}

button {
    margin-top: 2rem;
    padding: 1rem;
    background-color: #21092f;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
}

label {
    text-transform: uppercase;
    padding-top: 1rem;
}

.error-msg {
    color: #ff5252;
    font-size: 0.7rem;
    margin-top: 0.3rem;
    display: none;
    /* Hidden by default */
}

input.error {
    border-color: #ff5252;
}

.error-row {
    display: grid;
    grid-template-columns: 2fr 2fr;
    /* Aligns errors under the correct inputs */
    gap: 0.5rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .container {
        flex-direction: column;
    }

    .side-panel {
        width: 100%;
        height: 240px;
        min-height: auto;
    }

    .cards-wrapper {
        top: 100%;
        right: 50%;
        transform: translate(50%, -50%);
        flex-direction: column-reverse;
        gap: 0;
    }

    .card-top,
    .card-bottom {
        width: 280px;
    }

    .card-top {
        margin: -4rem 0 0 -3rem;
    }

    .card-bottom {
        margin: 0 0 0 2rem;
    }

    #display-number {
        font-size: 1.1rem;
    }

    .form-container {
        margin-top: 5rem;
        padding: 6rem 1.5rem 3rem 1.5rem;
        max-width: 100%;
        flex-wrap: wrap;
    }

    .card-details {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
    }
}


.attribution {
        font-size: 11px;
        text-align: center;
        padding-top: 1rem;
    }

    .attribution a {
        color: hsl(228, 45%, 44%);
    }