html, body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    min-height: 100vh;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* Custom Styles for QuizApp */

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 450px;
    width: 100%;
}

/* Home Page */
.home-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.feature-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

/* Questions Page */
.question-card {
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid #dee2e6;
}

.question-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Question Detail Page */
.timer {
    font-size: 1.2rem;
    padding: 8px 16px;
    background-color: #e3f2fd;
    border-radius: 8px;
    color: #1976d2;
}

.timer-warning {
    background-color: #ffebee;
    color: #c62828;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.choice-item {
    padding: 15px;
    margin-bottom: 10px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    background-color: #f8f9fa;
    transition: all 0.2s;
}

.choice-item:hover {
    background-color: #e9ecef;
}

.choice-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.choice-correct {
    background-color: #d4edda;
    border-color: #28a745;
}

.choice-incorrect {
    background-color: #f8d7da;
    border-color: #dc3545;
}

.choice-neutral {
    background-color: #f8f9fa;
    border-color: #e9ecef;
}

/* Dashboard Page */
.table-rank-1 {
    background-color: #fff8e1;
}

.table-rank-2 {
    background-color: #f5f5f5;
}

.table-rank-3 {
    background-color: #ffebee;
}

.medal {
    font-size: 1.5rem;
}

.rank-cell {
    font-weight: bold;
    font-size: 1.1rem;
}

.rank-number {
    color: #6c757d;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-card {
        padding: 30px 20px;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .timer {
        font-size: 1rem;
        padding: 6px 12px;
    }

    .table {
        font-size: 0.9rem;
    }

    .medal {
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .btn-lg {
        padding: 0.5rem 1.5rem;
        font-size: 1rem;
    }

    .card {
        border-radius: 8px;
    }

    .choice-item {
        padding: 12px;
    }
}

/* Card Shadows */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.card:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
}

/* Admin Styles */
.admin-stat-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.admin-stat-card:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.admin-stat-card .card-title {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.admin-stat-card .display-6 {
    font-weight: 700;
    color: #1b6ec2;
}

.hover-card {
    cursor: pointer;
    transition: all 0.3s;
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(27, 110, 194, 0.2) !important;
}

.hover-card .card-body {
    color: inherit;
}

.hover-card small {
    font-size: 0.75rem;
    color: #1b6ec2;
    font-weight: 500;
}

.question-text-preview {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.table-hover tbody tr {
    transition: all 0.2s;
}

.table-hover tbody tr:hover {
    background-color: #f8f9fa;
    transform: scale(1.01);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.btn-group .btn {
    margin: 0;
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}

.modal.show {
    display: block !important;
}

.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.5);
}

/* Form Styles */
.form-check-input:checked {
    background-color: #1b6ec2;
    border-color: #1b6ec2;
}

.form-switch .form-check-input {
    width: 3em;
    height: 1.5em;
}

.card-body .row {
    align-items: end;
}

/* List group items */
.list-group-item {
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.list-group-item-success {
    background-color: #d4edda;
    border-left-color: #28a745;
}

.list-group-item-danger {
    background-color: #f8d7da;
    border-left-color: #dc3545;
}

.list-group-item-light {
    background-color: #f8f9fa;
}

/* Result Badge */
.result-badge {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
    animation: fadeInScale 0.5s ease-out;
    position: relative;
}

.result-image {
    width: 140px !important;
    height: 140px !important;
    max-width: 140px !important;
    max-height: 140px !important;
    object-fit: cover !important;
    border-radius: 50% !important;
    display: block !important;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}