body {
    background-color: #f8f9fa;
    padding: 20px 0 80px; /* Added padding at bottom to account for sticky bar */
}

.container {
    padding: 0 15px;
}

/* Card wrapper to ensure minimum width */
.col {
    flex: 0 0 400px; /* Fixed width */
    max-width: 400px;
    padding: 15px;
    display: flex; /* Enable flex for equal height */
}

/* Update row to allow wrapping */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: -15px;
    justify-content: center;
}

.card {
    width: 100%; /* Full width of col */
    border-radius: 15px;
    border: none;
    transition: all 0.3s ease;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.card-img-top {
    height: 350px; /* Fixed height for images */
    object-fit: contain;
    padding: 15px;
    background: linear-gradient(145deg, #f8f9fa, #ffffff);
    border-radius: 15px 15px 0 0;
}

.card-body {
    flex: 1; /* Allow card body to grow */
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
}

.card-title {
    margin-bottom: 1rem;
}

.page-title {
    margin-left: auto;
    margin-right: auto;
}

.card-buttons {
    margin-top: auto; /* Push buttons to bottom */
    display: flex;
    justify-content: center;
    gap: 10px;
}

.btn {
    flex: 0 1 auto;
    min-width: 100px;
    white-space: nowrap;
}

.sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #333;
    color: white;
    padding: 15px;
    text-align: center;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.signup-btn, .login-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-btn {
    background-color: cadetblue;
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.about-btn {
    background-color: orange;
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 5px;
    font-size: 1.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.signup-btn:hover, .login-btn:hover {
    background-color: #0056b3;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 1001;
}

.modal-content {
    background-color: white;
    margin: 15% auto;
    padding: 20px;
    border-radius: 5px;
    width: 80%;
    max-width: 500px;
    position: relative;
    white-space: pre-line;
}

.loading-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 2000;
}

.loading-content {
    background-color: white;
    margin: 15% auto;
    padding: 30px;
    border-radius: 10px;
    width: 80%;
    max-width: 400px;
    text-align: center;
    white-space: pre-line;
}

/* Contact info styles */
.contact-info {
    margin-top: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 5px;
    text-align: center;
}

.contact-label {
    font-weight: 500;
    color: #2c3e50;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .container {
        max-width: 430px;
        margin: 0 auto;
    }

    .col {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* Loading spinner */
.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.success-icon {
    color: #28a745;
    font-size: 50px;
    margin: 20px 0;
}

.error-icon {
    color: #dc3545;
    font-size: 50px;
    margin: 20px 0;
}

.flip-card {
    background-color: transparent;
    width: 100%;
    height: 300px;
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    padding: 15px;
    border-radius: 15px;
}

.flip-card-front {
    background: linear-gradient(145deg, #f8f9fa, #ffffff);
}

.flip-card-front img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.flip-card-back {
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #2c3e50;
    color: white;
}

.flip-card .contact-info {
    width: 100%;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    color: white;
}

.flip-card .contact-info strong {
    color: #8ee4af;
}

.card {
    margin-bottom: 20px;
}

.card-body {
    padding-top: 0.75rem;
}

.card-img-top {
    margin-bottom: 0;
    padding-bottom: 0;
}