/**
 * Componentes - Botões, Cards, Inputs
 */

/* === BOTÕES === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: var(--background-alt);
    border-color: var(--primary-light);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--background-alt);
    color: var(--text);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* === CARDS === */
.card {
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--card-border);
    transition: all var(--transition);
    overflow: hidden;
}

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

.card-body {
    padding: 1.5rem;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--card-border);
    font-weight: 600;
}

/* === INPUTS === */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    background: var(--card);
    color: var(--text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* === BADGE === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge-error { background: rgba(239, 68, 68, 0.15); color: var(--error); }
.badge-info { background: rgba(59, 130, 246, 0.15); color: var(--info); }

/* === ALERT === */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.alert-success { background: rgba(16, 185, 129, 0.1); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.3); }
.alert-error { background: rgba(239, 68, 68, 0.1); color: var(--error); border: 1px solid rgba(239, 68, 68, 0.3); }
.alert-warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.3); }

/* === LOADING / SKELETON === */
.skeleton {
    background: linear-gradient(90deg, var(--background-alt) 25%, var(--card) 50%, var(--background-alt) 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--radius);
}

@keyframes skeleton-pulse {
    0%, 100% { background-position: 200% 0; }
    50% { background-position: -200% 0; }
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--card-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}