/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius);
    transition: var(--transition-all);
}

.btn-primary {
    color: white;
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
    background-color: transparent;
}

.btn-outline-primary:hover {
    color: white;
    background-color: var(--primary);
    border-color: var(--primary);
}

/* Cards */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition-all);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-body {
    padding: var(--spacing-5);
}

.card-title {
    margin-bottom: var(--spacing-3);
    font-size: 1.25rem;
    font-weight: 600;
}

.card-text {
    color: var(--gray-600);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-4);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: var(--transition-all);
}

.form-control:focus {
    border-color: var(--primary-light);
    outline: 0;
    box-shadow: 0 0 0 0.2rem var(--primary-100);
}

/* Progress */
.progress {
    display: flex;
    height: 0.5rem;
    overflow: hidden;
    background-color: var(--gray-200);
    border-radius: var(--radius-xl);
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    color: white;
    text-align: center;
    white-space: nowrap;
    background-color: var(--primary);
    transition: width 0.6s ease;
}

/* Alerts */
.alert {
    position: relative;
    padding: var(--spacing-3) var(--spacing-4);
    margin-bottom: var(--spacing-4);
    border: 1px solid transparent;
    border-radius: var(--radius);
}

.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

.alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}

.alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1050;
    width: 100%;
    height: 100%;
    overflow: hidden;
    outline: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: var(--spacing-4);
    pointer-events: none;
}

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    pointer-events: auto;
    background-color: white;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    outline: 0;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.modal-body {
    position: relative;
    flex: 1 1 auto;
    padding: var(--spacing-4);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: var(--spacing-3) var(--spacing-4);
    border-top: 1px solid var(--gray-200);
}

/* Navigation */
.nav {
    display: flex;
    flex-wrap: wrap;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.nav-link {
    display: block;
    padding: var(--spacing-2) var(--spacing-4);
    text-decoration: none;
    transition: var(--transition-all);
}

.nav-link:hover {
    color: var(--primary);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-sm);
}

.badge-primary {
    color: white;
    background-color: var(--primary);
}

.badge-secondary {
    color: white;
    background-color: var(--gray-600);
}